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authorKarl Heuer1997-11-23 02:10:07 +0000
committerKarl Heuer1997-11-23 02:10:07 +0000
commitf83d2997fbf6b7b8287f34a89966f404bd095698 (patch)
tree313f5b2abc9c70aa0ed892bd20fbae27690f0bd3
parent950444902e9db2eebe771951f474951e059d8f22 (diff)
downloademacs-f83d2997fbf6b7b8287f34a89966f404bd095698.tar.gz
emacs-f83d2997fbf6b7b8287f34a89966f404bd095698.zip
Initial revision
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-rw-r--r--lisp/progmodes/cperl-mode.el5307
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diff --git a/lisp/play/bruce.el b/lisp/play/bruce.el
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1;;; bruce.el --- bruce phrase utility for overloading the Communications
2;;; Decency Act snoops, if any.
3
4;; Copyright (C) 1988, 1993, 1997 Free Software Foundation, Inc.
5
6;; Maintainer: FSF
7;; Keywords: games
8;; Created: Jan 1997
9
10;; This file is part of GNU Emacs.
11
12;; GNU Emacs is free software; you can redistribute it and/or modify
13;; it under the terms of the GNU General Public License as published by
14;; the Free Software Foundation; either version 2, or (at your option)
15;; any later version.
16
17;; GNU Emacs is distributed in the hope that it will be useful,
18;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20;; GNU General Public License for more details.
21
22;; You should have received a copy of the GNU General Public License
23;; along with GNU Emacs; see the file COPYING. If not, write to the
24;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
25;; Boston, MA 02111-1307, USA.
26
27;;; Commentary:
28
29;; This program was written to protest the miss-named "Communications
30;; Decency Act of 1996. This Act bans "indecent speech", whatever that is,
31;; from the internet. For more on the CDA, see Richard Stallman's essay on
32;; censorship, included in the etc directory of emacs distributions 19.34
33;; and up. See also http://www.eff.org/blueribbon.html.
34
35;; For many years, emacs has included a program called Spook. This program
36;; adds a series of "keywords" to email just before it goes out. On the
37;; theory that the NSA monitors people's email, the keywords would be
38;; picked up by the NSA's snoop computers, causing them to waste time
39;; reading your meeting schedule notices or other email boring to everyone
40;; but you and (you hope) the recipient. See below (I left in the original
41;; writeup when I made this conversion), or the emacs documentation at
42;; ftp://prep.ai.mit.edu/pub/gnu/emacs-manual*.
43
44;; Bruce is a direct copy of spook, with the word "spook" replaced with
45;; the word "bruce". Thanks to "esr", whoever he, she or it may be, this
46;; conversion was an extremely easy piece of editing, suitable for a first
47;; essay at elisp programming.
48
49;; You may think of the name as having been derived from a certain Monty
50;; Python routine. Or from Lenny Bruce, who opposed censorship in his own
51;; inimitable way. Bruce does exactly what Spook does: it throws keywords
52;; into your email messages or other documents.
53
54;; However, in order to comply with the CDA as interpreted by Richard
55;; Stallman (see the essay on censorship), bruce is distributed without a
56;; data file from which to select words at random. Sorry about that. I
57;; believe the average user will be able to come up with a few words on
58;; his or her own. If that is a problem, feel free to ask any American
59;; teenager, preferrably one who attends a government school. Failing
60;; that, you might write to Mr. Clinton or Ms Reno or their successors and
61;; ask them for suggestions. Think of it as a public spirited act: the
62;; time they spend answering you is time not spent persecuting someone
63;; else. However, do ask them to respond by snail mail, where their
64;; suggestions would be legal.
65
66;; To build the data file, just start a file called bruce.lines in the etc
67;; directory of your emacs distribution. Note that each phrase or word has
68;; to be followed by an ascii 0, control-@. See the file spook.lines in
69;; the etc directory for an example. In emacs, use c-q c-@ to insert the
70;; ascii 0s.
71
72;; Once you have edited up a data file, you have to tell emacs how to find
73;; the program bruce. Add the follwing two lines to your .emacs file. Be
74;; sure to uncomment the second line.
75
76;; for bruce mode
77;; (autoload 'bruce "bruce" "Use the Bruce program to protest the CDA" t)
78
79;; Shut down emacs and fire it up again. Then "M-x bruce" should put some
80;; shocking words in the current buffer.
81
82
83;; Please note that I am not suggesting that you actually use this program
84;; to add "illegal" words to your email, or any other purpose. First, you
85;; don't really need a program to do it, and second, it would be illegal
86;; for me to suggest or advise that you actually break the law. This
87;; program was written as a demonstration only, and as an act of political
88;; protest and free expression protected by the First Amendment, or
89;; whatever is left of it.
90
91
92;; We now return to the original writeup for spook:
93
94;; Steve Strassmann <straz@media-lab.media.mit.edu> didn't write the
95;; program spook, from which this was adapted, and even if he did, he
96;; really didn't mean for you to use it in an anarchistic way.
97;;
98;; To use this:
99;; Just before sending mail, do M-x spook.
100;; A number of phrases will be inserted into your buffer, to help
101;; give your message that extra bit of attractiveness for automated
102;; keyword scanners. Help defeat the NSA trunk trawler!
103
104;;; Code:
105
106(require 'cookie1)
107
108; Variables
109(defvar bruce-phrases-file "~/bruce.lines"
110 "Keep your favorite phrases here.")
111
112(defvar bruce-phrase-default-count 15
113 "Default number of phrases to insert")
114
115;;;###autoload
116(defun bruce ()
117 "Adds that special touch of class to your outgoing mail."
118 (interactive)
119 (or (file-exists-p bruce-phrases-file)
120 (error "You need to create %s" bruce-phrases-file))
121 (cookie-insert bruce-phrases-file
122 bruce-phrase-default-count
123 "Checking authorization..."
124 "Checking authorization...Approved"))
125
126;;;###autoload
127(defun snarf-bruces ()
128 "Return a vector containing the lines from `bruce-phrases-file'."
129 (or (file-exists-p bruce-phrases-file)
130 (error "You need to create %s" bruce-phrases-file))
131 (cookie-snarf bruce-phrases-file
132 "Checking authorization..."
133 "Checking authorization...Approved"))
134
135;; Note: the implementation that used to take up most of this file has been
136;; cleaned up, generalized, gratuitously broken by esr, and now resides in
137;; cookie1.el.
138
139;;; bruce.el ends here
diff --git a/lisp/progmodes/cperl-mode.el b/lisp/progmodes/cperl-mode.el
new file mode 100644
index 00000000000..6285af4b45e
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@@ -0,0 +1,5307 @@
1;;; cperl-mode.el --- Perl code editing commands for Emacs
2
3;; Copyright (C) 1985, 86, 87, 91, 92, 93, 94, 95, 96, 1997
4;; Free Software Foundation, Inc.
5
6;; Author: Ilya Zakharevich and Bob Olson
7;; Maintainer: Ilya Zakharevich <ilya@math.ohio-state.edu>
8;; Keywords: languages, Perl
9
10;; This file is part of GNU Emacs.
11
12;; GNU Emacs is free software; you can redistribute it and/or modify
13;; it under the terms of the GNU General Public License as published by
14;; the Free Software Foundation; either version 2, or (at your option)
15;; any later version.
16
17;; GNU Emacs is distributed in the hope that it will be useful,
18;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20;; GNU General Public License for more details.
21
22;; You should have received a copy of the GNU General Public License
23;; along with GNU Emacs; see the file COPYING. If not, write to the
24;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
25;; Boston, MA 02111-1307, USA.
26
27;;; Corrections made by Ilya Zakharevich ilya@math.mps.ohio-state.edu
28;;; XEmacs changes by Peter Arius arius@informatik.uni-erlangen.de
29
30;;; Commentary:
31
32;;; You can either fine-tune the bells and whistles of this mode or
33;;; bulk enable them by putting
34
35;; (setq cperl-hairy t)
36
37;;; in your .emacs file. (Emacs rulers do not consider it politically
38;;; correct to make whistles enabled by default.)
39
40;;; DO NOT FORGET to read micro-docs (available from `Perl' menu) <<<<<<
41;;; or as help on variables `cperl-tips', `cperl-problems', <<<<<<
42;;; `cperl-non-problems', `cperl-praise'. <<<<<<
43
44;;; The mode information (on C-h m) provides some customization help.
45;;; If you use font-lock feature of this mode, it is advisable to use
46;;; either lazy-lock-mode or fast-lock-mode. I prefer lazy-lock.
47
48;;; Faces used now: three faces for first-class and second-class keywords
49;;; and control flow words, one for each: comments, string, labels,
50;;; functions definitions and packages, arrays, hashes, and variable
51;;; definitions. If you do not see all these faces, your font-lock does
52;;; not define them, so you need to define them manually.
53
54;;; into your .emacs file.
55
56;;;; This mode supports font-lock, imenu and mode-compile. In the
57;;;; hairy version font-lock is on, but you should activate imenu
58;;;; yourself (note that mode-compile is not standard yet). Well, you
59;;;; can use imenu from keyboard anyway (M-x imenu), but it is better
60;;;; to bind it like that:
61
62;; (define-key global-map [M-S-down-mouse-3] 'imenu)
63
64;;; Code:
65
66(defconst cperl-xemacs-p (string-match "XEmacs\\|Lucid" emacs-version))
67
68(defvar cperl-extra-newline-before-brace nil
69 "*Non-nil means that if, elsif, while, until, else, for, foreach
70and do constructs look like:
71
72 if ()
73 {
74 }
75
76instead of:
77
78 if () {
79 }
80")
81
82(defvar cperl-indent-level 2
83 "*Indentation of CPerl statements with respect to containing block.")
84(defvar cperl-lineup-step nil
85 "*`cperl-lineup' will always lineup at multiple of this number.
86If `nil', the value of `cperl-indent-level' will be used.")
87(defvar cperl-brace-imaginary-offset 0
88 "*Imagined indentation of a Perl open brace that actually follows a statement.
89An open brace following other text is treated as if it were this far
90to the right of the start of its line.")
91(defvar cperl-brace-offset 0
92 "*Extra indentation for braces, compared with other text in same context.")
93(defvar cperl-label-offset -2
94 "*Offset of CPerl label lines relative to usual indentation.")
95(defvar cperl-min-label-indent 1
96 "*Minimal offset of CPerl label lines.")
97(defvar cperl-continued-statement-offset 2
98 "*Extra indent for lines not starting new statements.")
99(defvar cperl-continued-brace-offset 0
100 "*Extra indent for substatements that start with open-braces.
101This is in addition to cperl-continued-statement-offset.")
102(defvar cperl-close-paren-offset -1
103 "*Extra indent for substatements that start with close-parenthesis.")
104
105(defvar cperl-auto-newline nil
106 "*Non-nil means automatically newline before and after braces,
107and after colons and semicolons, inserted in CPerl code. The following
108\\[cperl-electric-backspace] will remove the inserted whitespace.
109Insertion after colons requires both this variable and
110`cperl-auto-newline-after-colon' set.")
111
112(defvar cperl-auto-newline-after-colon nil
113 "*Non-nil means automatically newline even after colons.
114Subject to `cperl-auto-newline' setting.")
115
116(defvar cperl-tab-always-indent t
117 "*Non-nil means TAB in CPerl mode should always reindent the current line,
118regardless of where in the line point is when the TAB command is used.")
119
120(defvar cperl-font-lock nil
121 "*Non-nil (and non-null) means CPerl buffers will use font-lock-mode.
122Can be overwritten by `cperl-hairy' if nil.")
123
124(defvar cperl-electric-lbrace-space nil
125 "*Non-nil (and non-null) means { after $ in CPerl buffers should be preceded by ` '.
126Can be overwritten by `cperl-hairy' if nil.")
127
128(defvar cperl-electric-parens-string "({[]})<"
129 "*String of parentheses that should be electric in CPerl.
130Closing ones are electric only if the region is highlighted.")
131
132(defvar cperl-electric-parens nil
133 "*Non-nil (and non-null) means parentheses should be electric in CPerl.
134Can be overwritten by `cperl-hairy' if nil.")
135(defvar cperl-electric-parens-mark
136 (and window-system
137 (or (and (boundp 'transient-mark-mode) ; For Emacs
138 transient-mark-mode)
139 (and (boundp 'zmacs-regions) ; For XEmacs
140 zmacs-regions)))
141 "*Not-nil means that electric parens look for active mark.
142Default is yes if there is visual feedback on mark.")
143
144(defvar cperl-electric-linefeed nil
145 "*If true, LFD should be hairy in CPerl, otherwise C-c LFD is hairy.
146In any case these two mean plain and hairy linefeeds together.
147Can be overwritten by `cperl-hairy' if nil.")
148
149(defvar cperl-electric-keywords nil
150 "*Not-nil (and non-null) means keywords are electric in CPerl.
151Can be overwritten by `cperl-hairy' if nil.")
152
153(defvar cperl-hairy nil
154 "*Not-nil means all the bells and whistles are enabled in CPerl.")
155
156(defvar cperl-comment-column 32
157 "*Column to put comments in CPerl (use \\[cperl-indent]' to lineup with code).")
158
159(defvar cperl-vc-header-alist '((SCCS "$sccs = '%W\%' ;")
160 (RCS "$rcs = ' $Id\$ ' ;"))
161 "*What to use as `vc-header-alist' in CPerl.")
162
163(defvar cperl-info-on-command-no-prompt nil
164 "*Not-nil (and non-null) means not to prompt on C-h f.
165The opposite behaviour is always available if prefixed with C-c.
166Can be overwritten by `cperl-hairy' if nil.")
167
168(defvar cperl-lazy-help-time nil
169 "*Not-nil (and non-null) means to show lazy help after given idle time.")
170
171(defvar cperl-pod-face 'font-lock-comment-face
172 "*The result of evaluation of this expression is used for pod highlighting.")
173
174(defvar cperl-pod-head-face 'font-lock-variable-name-face
175 "*The result of evaluation of this expression is used for pod highlighting.
176Font for POD headers.")
177
178(defvar cperl-here-face 'font-lock-string-face
179 "*The result of evaluation of this expression is used for here-docs highlighting.")
180
181(defvar cperl-pod-here-fontify '(featurep 'font-lock)
182 "*Not-nil after evaluation means to highlight pod and here-docs sections.")
183
184(defvar cperl-pod-here-scan t
185 "*Not-nil means look for pod and here-docs sections during startup.
186You can always make lookup from menu or using \\[cperl-find-pods-heres].")
187
188(defvar cperl-imenu-addback nil
189 "*Not-nil means add backreferences to generated `imenu's.
190May require patched `imenu' and `imenu-go'.")
191
192(defvar cperl-max-help-size 66
193 "*Non-nil means shrink-wrapping of info-buffer allowed up to these percents.")
194
195(defvar cperl-shrink-wrap-info-frame t
196 "*Non-nil means shrink-wrapping of info-buffer-frame allowed.")
197
198(defvar cperl-info-page "perl"
199 "*Name of the info page containing perl docs.
200Older version of this page was called `perl5', newer `perl'.")
201
202(defvar cperl-use-syntax-table-text-property
203 (boundp 'parse-sexp-lookup-properties)
204 "*Non-nil means CPerl sets up and uses `syntax-table' text property.")
205
206(defvar cperl-use-syntax-table-text-property-for-tags
207 cperl-use-syntax-table-text-property
208 "*Non-nil means: set up and use `syntax-table' text property generating TAGS.")
209
210(defvar cperl-scan-files-regexp "\\.\\([pP][Llm]\\|xs\\)$"
211 "*Regexp to match files to scan when generating TAGS.")
212
213(defvar cperl-noscan-files-regexp "/\\(\\.\\.?\\|SCCS\\|RCS\\|blib\\)$"
214 "*Regexp to match files/dirs to skip when generating TAGS.")
215
216(defvar cperl-regexp-indent-step nil
217 "*indentation used when beautifying regexps.
218If `nil', the value of `cperl-indent-level' will be used.")
219
220(defvar cperl-indent-left-aligned-comments t
221 "*Non-nil means that the comment starting in leftmost column should indent.")
222
223(defvar cperl-under-as-char t
224 "*Non-nil means that the _ (underline) should be treated as word char.")
225
226
227
228
229;;; Short extra-docs.
230
231(defvar cperl-tips 'please-ignore-this-line
232 "Get newest version of this package from
233 ftp://ftp.math.ohio-state.edu/pub/users/ilya/emacs
234and/or
235 ftp://ftp.math.ohio-state.edu/pub/users/ilya/perl
236
237Get support packages choose-color.el (or font-lock-extra.el before
23819.30), imenu-go.el from the same place. \(Look for other files there
239too... ;-). Get a patch for imenu.el in 19.29. Note that for 19.30 and
240later you should use choose-color.el *instead* of font-lock-extra.el
241\(and you will not get smart highlighting in C :-().
242
243Note that to enable Compile choices in the menu you need to install
244mode-compile.el.
245
246Get perl5-info from
247 $CPAN/doc/manual/info/perl-info.tar.gz
248older version was on
249 http://www.metronet.com:70/9/perlinfo/perl5/manual/perl5-info.tar.gz
250
251If you use imenu-go, run imenu on perl5-info buffer (you can do it
252from CPerl menu). If many files are related, generate TAGS files from
253Tools/Tags submenu in CPerl menu.
254
255If some class structure is too complicated, use Tools/Hierarchy-view
256from CPerl menu, or hierarchic view of imenu. The second one uses the
257current buffer only, the first one requires generation of TAGS from
258CPerl/Tools/Tags menu beforehand.
259
260Run CPerl/Tools/Insert-spaces-if-needed to fix your lazy typing.
261
262Switch auto-help on/off with CPerl/Tools/Auto-help.
263
264Before reporting (non-)problems look in the problem section on what I
265know about them.")
266
267(defvar cperl-problems 'please-ignore-this-line
268"Emacs has a _very_ restricted syntax parsing engine.
269
270It may be corrected on the level of C code, please look in the
271`non-problems' section if you want to volunteer.
272
273CPerl mode tries to corrects some Emacs misunderstandings, however,
274for efficiency reasons the degree of correction is different for
275different operations. The partially corrected problems are: POD
276sections, here-documents, regexps. The operations are: highlighting,
277indentation, electric keywords, electric braces.
278
279This may be confusing, since the regexp s#//#/#\; may be highlighted
280as a comment, but it will be recognized as a regexp by the indentation
281code. Or the opposite case, when a pod section is highlighted, but
282may break the indentation of the following code (though indentation
283should work if the balance of delimiters is not broken by POD).
284
285The main trick (to make $ a \"backslash\") makes constructions like
286${aaa} look like unbalanced braces. The only trick I can think of is
287to insert it as $ {aaa} (legal in perl5, not in perl4).
288
289Similar problems arise in regexps, when /(\\s|$)/ should be rewritten
290as /($|\\s)/. Note that such a transposition is not always possible
291:-(. " )
292
293(defvar cperl-non-problems 'please-ignore-this-line
294"As you know from `problems' section, Perl syntax is too hard for CPerl.
295
296Most the time, if you write your own code, you may find an equivalent
297\(and almost as readable) expression.
298
299Try to help CPerl: add comments with embedded quotes to fix CPerl
300misunderstandings about the end of quotation:
301
302$a='500$'; # ';
303
304You won't need it too often. The reason: $ \"quotes\" the following
305character (this saves a life a lot of times in CPerl), thus due to
306Emacs parsing rules it does not consider tick (i.e., ' ) after a
307dollar as a closing one, but as a usual character.
308
309Now the indentation code is pretty wise. The only drawback is that it
310relies on Emacs parsing to find matching parentheses. And Emacs
311*cannot* match parentheses in Perl 100% correctly. So
312 1 if s#//#/#;
313will not break indentation, but
314 1 if ( s#//#/# );
315will.
316
317By similar reasons
318 s\"abc\"def\";
319will confuse CPerl a lot.
320
321If you still get wrong indentation in situation that you think the
322code should be able to parse, try:
323
324a) Check what Emacs thinks about balance of your parentheses.
325b) Supply the code to me (IZ).
326
327Pods are treated _very_ rudimentally. Here-documents are not treated
328at all (except highlighting and inhibiting indentation). (This may
329change some time. RMS approved making syntax lookup recognize text
330attributes, but volunteers are needed to change Emacs C code.)
331
332To speed up coloring the following compromises exist:
333 a) sub in $mypackage::sub may be highlighted.
334 b) -z in [a-z] may be highlighted.
335 c) if your regexp contains a keyword (like \"s\"), it may be highlighted.
336
337
338Imenu in 19.31 is broken. Set `imenu-use-keymap-menu' to t, and remove
339`car' before `imenu-choose-buffer-index' in `imenu'.
340")
341
342(defvar cperl-praise 'please-ignore-this-line
343 "RMS asked me to list good things about CPerl. Here they go:
344
3450) It uses the newest `syntax-table' property ;-);
346
3471) It does 99% of Perl syntax correct (as opposed to 80-90% in Perl
348mode - but the latter number may have improved too in last years) even
349without `syntax-table' property; When using this property, it should
350handle 99.995% of lines correct - or somesuch.
351
3522) It is generally belived to be \"the most user-friendly Emacs
353package\" whatever it may mean (I doubt that the people who say similar
354things tried _all_ the rest of Emacs ;-), but this was not a lonely
355voice);
356
3573) Everything is customizable, one-by-one or in a big sweep;
358
3594) It has many easily-accessable \"tools\":
360 a) Can run program, check syntax, start debugger;
361 b) Can lineup vertically \"middles\" of rows, like `=' in
362 a = b;
363 cc = d;
364 c) Can insert spaces where this impoves readability (in one
365 interactive sweep over the buffer);
366 d) Has support for imenu, including:
367 1) Separate unordered list of \"interesting places\";
368 2) Separate TOC of POD sections;
369 3) Separate list of packages;
370 4) Hierarchical view of methods in (sub)packages;
371 5) and functions (by the full name - with package);
372 e) Has an interface to INFO docs for Perl; The interface is
373 very flexible, including shrink-wrapping of
374 documentation buffer/frame;
375 f) Has a builtin list of one-line explanations for perl constructs.
376 g) Can show these explanations if you stay long enough at the
377 corresponding place (or on demand);
378 h) Has an enhanced fontification (using 3 or 4 additional faces
379 comparing to font-lock - basically, different
380 namespaces in Perl have different colors);
381 i) Can construct TAGS basing on its knowledge of Perl syntax,
382 the standard menu has 6 different way to generate
383 TAGS (if by directory, .xs files - with C-language
384 bindings - are included in the scan);
385 j) Can build a hierarchical view of classes (via imenu) basing
386 on generated TAGS file;
387 k) Has electric parentheses, electric newlines, uses Abbrev
388 for electric logical constructs
389 while () {}
390 with different styles of expansion (context sensitive
391 to be not so bothering). Electric parentheses behave
392 \"as they should\" in a presence of a visible region.
393 l) Changes msb.el \"on the fly\" to insert a group \"Perl files\";
394
3955) The indentation engine was very smart, but most of tricks may be
396not needed anymore with the support for `syntax-table' property. Has
397progress indicator for indentation (with `imenu' loaded).
398
3996) Indent-region improves inline-comments as well;
400
4017) Fill-paragraph correctly handles multi-line comments;
402")
403
404
405
406;;; Portability stuff:
407
408(defmacro cperl-define-key (emacs-key definition &optional xemacs-key)
409 (` (define-key cperl-mode-map
410 (, (if xemacs-key
411 (` (if cperl-xemacs-p (, xemacs-key) (, emacs-key)))
412 emacs-key))
413 (, definition))))
414
415(defvar cperl-del-back-ch
416 (car (append (where-is-internal 'delete-backward-char)
417 (where-is-internal 'backward-delete-char-untabify)))
418 "Character generated by key bound to delete-backward-char.")
419
420(and (vectorp cperl-del-back-ch) (= (length cperl-del-back-ch) 1)
421 (setq cperl-del-back-ch (aref cperl-del-back-ch 0)))
422
423(if cperl-xemacs-p
424 (progn
425 ;; "Active regions" are on: use region only if active
426 ;; "Active regions" are off: use region unconditionally
427 (defun cperl-use-region-p ()
428 (if zmacs-regions (mark) t))
429 (defun cperl-mark-active () (mark)))
430 (defun cperl-use-region-p ()
431 (if transient-mark-mode mark-active t))
432 (defun cperl-mark-active () mark-active))
433
434(defsubst cperl-enable-font-lock ()
435 (or cperl-xemacs-p window-system))
436
437(if (boundp 'unread-command-events)
438 (if cperl-xemacs-p
439 (defun cperl-putback-char (c) ; XEmacs >= 19.12
440 (setq unread-command-events (list (character-to-event c))))
441 (defun cperl-putback-char (c) ; Emacs 19
442 (setq unread-command-events (list c))))
443 (defun cperl-putback-char (c) ; XEmacs <= 19.11
444 (setq unread-command-event (character-to-event c))))
445
446(or (fboundp 'uncomment-region)
447 (defun uncomment-region (beg end)
448 (interactive "r")
449 (comment-region beg end -1)))
450
451(defvar cperl-do-not-fontify
452 (if (string< emacs-version "19.30")
453 'fontified
454 'lazy-lock)
455 "Text property which inhibits refontification.")
456
457(defsubst cperl-put-do-not-fontify (from to)
458 (put-text-property (max (point-min) (1- from))
459 to cperl-do-not-fontify t))
460
461(defvar cperl-mode-hook nil
462 "Hook run by `cperl-mode'.")
463
464
465;;; Probably it is too late to set these guys already, but it can help later:
466
467;;;(setq auto-mode-alist
468;;; (append '(("\\.\\([pP][Llm]\\|al\\)$" . perl-mode)) auto-mode-alist ))
469;;;(and (boundp 'interpreter-mode-alist)
470;;; (setq interpreter-mode-alist (append interpreter-mode-alist
471 '(("miniperl" . perl-mode)))))
472(if (fboundp 'eval-when-compile)
473 (eval-when-compile
474 (condition-case nil
475 (require 'imenu)
476 (error nil))
477 (condition-case nil
478 (require 'easymenu)
479 (error nil))
480 ;; Calling `cperl-enable-font-lock' below doesn't compile on XEmacs,
481 ;; macros instead of defsubsts don't work on Emacs, so we do the
482 ;; expansion manually. Any other suggestions?
483 (if (or (string-match "XEmacs\\|Lucid" emacs-version)
484 window-system)
485 (require 'font-lock))
486 (require 'cl)
487 ))
488
489(defvar cperl-mode-abbrev-table nil
490 "Abbrev table in use in Cperl-mode buffers.")
491
492(add-hook 'edit-var-mode-alist '(perl-mode (regexp . "^cperl-")))
493
494(defvar cperl-mode-map () "Keymap used in CPerl mode.")
495
496(if cperl-mode-map nil
497 (setq cperl-mode-map (make-sparse-keymap))
498 (cperl-define-key "{" 'cperl-electric-lbrace)
499 (cperl-define-key "[" 'cperl-electric-paren)
500 (cperl-define-key "(" 'cperl-electric-paren)
501 (cperl-define-key "<" 'cperl-electric-paren)
502 (cperl-define-key "}" 'cperl-electric-brace)
503 (cperl-define-key "]" 'cperl-electric-rparen)
504 (cperl-define-key ")" 'cperl-electric-rparen)
505 (cperl-define-key ";" 'cperl-electric-semi)
506 (cperl-define-key ":" 'cperl-electric-terminator)
507 (cperl-define-key "\C-j" 'newline-and-indent)
508 (cperl-define-key "\C-c\C-j" 'cperl-linefeed)
509 (cperl-define-key "\C-c\C-a" 'cperl-toggle-auto-newline)
510 (cperl-define-key "\C-c\C-k" 'cperl-toggle-abbrev)
511 (cperl-define-key "\C-c\C-e" 'cperl-toggle-electric)
512 (cperl-define-key "\e\C-q" 'cperl-indent-exp) ; Usually not bound
513 (cperl-define-key [?\C-\M-\|] 'cperl-lineup
514 [(control meta |)])
515 ;;(cperl-define-key "\M-q" 'cperl-fill-paragraph)
516 ;;(cperl-define-key "\e;" 'cperl-indent-for-comment)
517 (cperl-define-key "\177" 'cperl-electric-backspace)
518 (cperl-define-key "\t" 'cperl-indent-command)
519 ;; don't clobber the backspace binding:
520 (cperl-define-key "\C-c\C-hf" 'cperl-info-on-current-command
521 [(control c) (control h) f])
522 (cperl-define-key "\C-hf"
523 ;;(concat (char-to-string help-char) "f") ; does not work
524 'cperl-info-on-command
525 [(control h) f])
526 (cperl-define-key "\C-hv"
527 ;;(concat (char-to-string help-char) "v") ; does not work
528 'cperl-get-help
529 [(control h) v])
530 (if (and cperl-xemacs-p
531 (<= emacs-minor-version 11) (<= emacs-major-version 19))
532 (progn
533 ;; substitute-key-definition is usefulness-deenhanced...
534 (cperl-define-key "\M-q" 'cperl-fill-paragraph)
535 (cperl-define-key "\e;" 'cperl-indent-for-comment)
536 (cperl-define-key "\e\C-\\" 'cperl-indent-region))
537 (substitute-key-definition
538 'indent-sexp 'cperl-indent-exp
539 cperl-mode-map global-map)
540 (substitute-key-definition
541 'fill-paragraph 'cperl-fill-paragraph
542 cperl-mode-map global-map)
543 (substitute-key-definition
544 'indent-region 'cperl-indent-region
545 cperl-mode-map global-map)
546 (substitute-key-definition
547 'indent-for-comment 'cperl-indent-for-comment
548 cperl-mode-map global-map)))
549
550(defvar cperl-menu)
551(condition-case nil
552 (progn
553 (require 'easymenu)
554 (easy-menu-define cperl-menu cperl-mode-map "Menu for CPerl mode"
555 '("Perl"
556 ["Beginning of function" beginning-of-defun t]
557 ["End of function" end-of-defun t]
558 ["Mark function" mark-defun t]
559 ["Indent expression" cperl-indent-exp t]
560 ["Fill paragraph/comment" cperl-fill-paragraph t]
561 "----"
562 ["Line up a construction" cperl-lineup (cperl-use-region-p)]
563 ["Beautify a regexp" cperl-beautify-regexp
564 cperl-use-syntax-table-text-property]
565 ["Beautify a group in regexp" cperl-beautify-level
566 cperl-use-syntax-table-text-property]
567 ["Contract a group in regexp" cperl-contract-level
568 cperl-use-syntax-table-text-property]
569 ["Refresh \"hard\" constructions" cperl-find-pods-heres t]
570 "----"
571 ["Indent region" cperl-indent-region (cperl-use-region-p)]
572 ["Comment region" cperl-comment-region (cperl-use-region-p)]
573 ["Uncomment region" cperl-uncomment-region (cperl-use-region-p)]
574 "----"
575 ["Run" mode-compile (fboundp 'mode-compile)]
576 ["Kill" mode-compile-kill (and (fboundp 'mode-compile-kill)
577 (get-buffer "*compilation*"))]
578 ["Next error" next-error (get-buffer "*compilation*")]
579 ["Check syntax" cperl-check-syntax (fboundp 'mode-compile)]
580 "----"
581 ["Debugger" cperl-db t]
582 "----"
583 ("Tools"
584 ["Imenu" imenu (fboundp 'imenu)]
585 ["Insert spaces if needed" cperl-find-bad-style t]
586 ["Class Hierarchy from TAGS" cperl-tags-hier-init t]
587 ;;["Update classes" (cperl-tags-hier-init t) tags-table-list]
588 ["Imenu on info" cperl-imenu-on-info (featurep 'imenu)]
589 ("Tags"
590;;; ["Create tags for current file" cperl-etags t]
591;;; ["Add tags for current file" (cperl-etags t) t]
592;;; ["Create tags for Perl files in directory" (cperl-etags nil t) t]
593;;; ["Add tags for Perl files in directory" (cperl-etags t t) t]
594;;; ["Create tags for Perl files in (sub)directories"
595;;; (cperl-etags nil 'recursive) t]
596;;; ["Add tags for Perl files in (sub)directories"
597;;; (cperl-etags t 'recursive) t])
598;;;; cperl-write-tags (&optional file erase recurse dir inbuffer)
599 ["Create tags for current file" (cperl-write-tags nil t) t]
600 ["Add tags for current file" (cperl-write-tags) t]
601 ["Create tags for Perl files in directory"
602 (cperl-write-tags nil t nil t) t]
603 ["Add tags for Perl files in directory"
604 (cperl-write-tags nil nil nil t) t]
605 ["Create tags for Perl files in (sub)directories"
606 (cperl-write-tags nil t t t) t]
607 ["Add tags for Perl files in (sub)directories"
608 (cperl-write-tags nil nil t t) t])
609 ["Define word at point" imenu-go-find-at-position
610 (fboundp 'imenu-go-find-at-position)]
611 ["Help on function" cperl-info-on-command t]
612 ["Help on function at point" cperl-info-on-current-command t]
613 ["Help on symbol at point" cperl-get-help t]
614 ["Auto-help on" cperl-lazy-install (fboundp 'run-with-idle-timer)]
615 ["Auto-help off" cperl-lazy-unstall
616 (fboundp 'run-with-idle-timer)])
617 ("Toggle..."
618 ["Auto newline" cperl-toggle-auto-newline t]
619 ["Electric parens" cperl-toggle-electric t]
620 ["Electric keywords" cperl-toggle-abbrev t]
621 )
622 ("Indent styles..."
623 ["GNU" (cperl-set-style "GNU") t]
624 ["C++" (cperl-set-style "C++") t]
625 ["FSF" (cperl-set-style "FSF") t]
626 ["BSD" (cperl-set-style "BSD") t]
627 ["Whitesmith" (cperl-set-style "Whitesmith") t])
628 ("Micro-docs"
629 ["Tips" (describe-variable 'cperl-tips) t]
630 ["Problems" (describe-variable 'cperl-problems) t]
631 ["Non-problems" (describe-variable 'cperl-non-problems) t]
632 ["Praise" (describe-variable 'cperl-praise) t]))))
633 (error nil))
634
635(autoload 'c-macro-expand "cmacexp"
636 "Display the result of expanding all C macros occurring in the region.
637The expansion is entirely correct because it uses the C preprocessor."
638 t)
639
640(defvar cperl-mode-syntax-table nil
641 "Syntax table in use in Cperl-mode buffers.")
642
643(defvar cperl-string-syntax-table nil
644 "Syntax table in use in Cperl-mode string-like chunks.")
645
646(if cperl-mode-syntax-table
647 ()
648 (setq cperl-mode-syntax-table (make-syntax-table))
649 (modify-syntax-entry ?\\ "\\" cperl-mode-syntax-table)
650 (modify-syntax-entry ?/ "." cperl-mode-syntax-table)
651 (modify-syntax-entry ?* "." cperl-mode-syntax-table)
652 (modify-syntax-entry ?+ "." cperl-mode-syntax-table)
653 (modify-syntax-entry ?- "." cperl-mode-syntax-table)
654 (modify-syntax-entry ?= "." cperl-mode-syntax-table)
655 (modify-syntax-entry ?% "." cperl-mode-syntax-table)
656 (modify-syntax-entry ?< "." cperl-mode-syntax-table)
657 (modify-syntax-entry ?> "." cperl-mode-syntax-table)
658 (modify-syntax-entry ?& "." cperl-mode-syntax-table)
659 (modify-syntax-entry ?$ "\\" cperl-mode-syntax-table)
660 (modify-syntax-entry ?\n ">" cperl-mode-syntax-table)
661 (modify-syntax-entry ?# "<" cperl-mode-syntax-table)
662 (modify-syntax-entry ?' "\"" cperl-mode-syntax-table)
663 (modify-syntax-entry ?` "\"" cperl-mode-syntax-table)
664 (if cperl-under-as-char
665 (modify-syntax-entry ?_ "w" cperl-mode-syntax-table))
666 (modify-syntax-entry ?: "_" cperl-mode-syntax-table)
667 (modify-syntax-entry ?| "." cperl-mode-syntax-table)
668 (setq cperl-string-syntax-table (copy-syntax-table cperl-mode-syntax-table))
669 (modify-syntax-entry ?$ "." cperl-string-syntax-table)
670 (modify-syntax-entry ?# "." cperl-string-syntax-table) ; (?# comment )
671)
672
673
674
675;; Make customization possible "in reverse"
676;;(defun cperl-set (symbol to)
677;; (or (eq (symbol-value symbol) 'null) (set symbol to)))
678(defsubst cperl-val (symbol &optional default hairy)
679 (cond
680 ((eq (symbol-value symbol) 'null) default)
681 (cperl-hairy (or hairy t))
682 (t (symbol-value symbol))))
683
684;; provide an alias for working with emacs 19. the perl-mode that comes
685;; with it is really bad, and this lets us seamlessly replace it.
686;;;###autoload
687(fset 'perl-mode 'cperl-mode)
688(defvar cperl-faces-init)
689;; Fix for msb.el
690(defvar cperl-msb-fixed nil)
691;;;###autoload
692(defun cperl-mode ()
693 "Major mode for editing Perl code.
694Expression and list commands understand all C brackets.
695Tab indents for Perl code.
696Paragraphs are separated by blank lines only.
697Delete converts tabs to spaces as it moves back.
698
699Various characters in Perl almost always come in pairs: {}, (), [],
700sometimes <>. When the user types the first, she gets the second as
701well, with optional special formatting done on {}. (Disabled by
702default.) You can always quote (with \\[quoted-insert]) the left
703\"paren\" to avoid the expansion. The processing of < is special,
704since most the time you mean \"less\". Cperl mode tries to guess
705whether you want to type pair <>, and inserts is if it
706appropriate. You can set `cperl-electric-parens-string' to the string that
707contains the parenths from the above list you want to be electrical.
708Electricity of parenths is controlled by `cperl-electric-parens'.
709You may also set `cperl-electric-parens-mark' to have electric parens
710look for active mark and \"embrace\" a region if possible.'
711
712CPerl mode provides expansion of the Perl control constructs:
713 if, else, elsif, unless, while, until, for, and foreach.
714=========(Disabled by default, see `cperl-electric-keywords'.)
715The user types the keyword immediately followed by a space, which causes
716the construct to be expanded, and the user is positioned where she is most
717likely to want to be.
718eg. when the user types a space following \"if\" the following appears in
719the buffer:
720 if () { or if ()
721 } {
722 }
723and the cursor is between the parentheses. The user can then type some
724boolean expression within the parens. Having done that, typing
725\\[cperl-linefeed] places you, appropriately indented on a new line
726between the braces. If CPerl decides that you want to insert
727\"English\" style construct like
728 bite if angry;
729it will not do any expansion. See also help on variable
730`cperl-extra-newline-before-brace'.
731
732\\[cperl-linefeed] is a convenience replacement for typing carriage
733return. It places you in the next line with proper indentation, or if
734you type it inside the inline block of control construct, like
735 foreach (@lines) {print; print}
736and you are on a boundary of a statement inside braces, it will
737transform the construct into a multiline and will place you into an
738appropriately indented blank line. If you need a usual
739`newline-and-indent' behaviour, it is on \\[newline-and-indent],
740see documentation on `cperl-electric-linefeed'.
741
742\\{cperl-mode-map}
743
744Setting the variable `cperl-font-lock' to t switches on
745font-lock-mode, `cperl-electric-lbrace-space' to t switches on
746electric space between $ and {, `cperl-electric-parens-string' is the
747string that contains parentheses that should be electric in CPerl (see
748also `cperl-electric-parens-mark' and `cperl-electric-parens'),
749setting `cperl-electric-keywords' enables electric expansion of
750control structures in CPerl. `cperl-electric-linefeed' governs which
751one of two linefeed behavior is preferable. You can enable all these
752options simultaneously (recommended mode of use) by setting
753`cperl-hairy' to t. In this case you can switch separate options off
754by setting them to `null'. Note that one may undo the extra whitespace
755inserted by semis and braces in `auto-newline'-mode by consequent
756\\[cperl-electric-backspace].
757
758If your site has perl5 documentation in info format, you can use commands
759\\[cperl-info-on-current-command] and \\[cperl-info-on-command] to access it.
760These keys run commands `cperl-info-on-current-command' and
761`cperl-info-on-command', which one is which is controlled by variable
762`cperl-info-on-command-no-prompt' (in turn affected by `cperl-hairy').
763
764Even if you have no info-format documentation, short one-liner-style
765help is available on \\[cperl-get-help].
766
767It is possible to show this help automatically after some idle
768time. This is regulated by variable `cperl-lazy-help-time'. Default
769with `cperl-hairy' is 5 secs idle time if the value of this variable
770is nil. It is also possible to switch this on/off from the
771menu. Requires `run-with-idle-timer'.
772
773Use \\[cperl-lineup] to vertically lineup some construction - put the
774beginning of the region at the start of construction, and make region
775span the needed amount of lines.
776
777Variables `cperl-pod-here-scan', `cperl-pod-here-fontify',
778`cperl-pod-face', `cperl-pod-head-face' control processing of pod and
779here-docs sections. In a future version results of scan may be used
780for indentation too, currently they are used for highlighting only.
781
782Variables controlling indentation style:
783 `cperl-tab-always-indent'
784 Non-nil means TAB in CPerl mode should always reindent the current line,
785 regardless of where in the line point is when the TAB command is used.
786 `cperl-auto-newline'
787 Non-nil means automatically newline before and after braces,
788 and after colons and semicolons, inserted in Perl code. The following
789 \\[cperl-electric-backspace] will remove the inserted whitespace.
790 Insertion after colons requires both this variable and
791 `cperl-auto-newline-after-colon' set.
792 `cperl-auto-newline-after-colon'
793 Non-nil means automatically newline even after colons.
794 Subject to `cperl-auto-newline' setting.
795 `cperl-indent-level'
796 Indentation of Perl statements within surrounding block.
797 The surrounding block's indentation is the indentation
798 of the line on which the open-brace appears.
799 `cperl-continued-statement-offset'
800 Extra indentation given to a substatement, such as the
801 then-clause of an if, or body of a while, or just a statement continuation.
802 `cperl-continued-brace-offset'
803 Extra indentation given to a brace that starts a substatement.
804 This is in addition to `cperl-continued-statement-offset'.
805 `cperl-brace-offset'
806 Extra indentation for line if it starts with an open brace.
807 `cperl-brace-imaginary-offset'
808 An open brace following other text is treated as if it the line started
809 this far to the right of the actual line indentation.
810 `cperl-label-offset'
811 Extra indentation for line that is a label.
812 `cperl-min-label-indent'
813 Minimal indentation for line that is a label.
814
815Settings for K&R and BSD indentation styles are
816 `cperl-indent-level' 5 8
817 `cperl-continued-statement-offset' 5 8
818 `cperl-brace-offset' -5 -8
819 `cperl-label-offset' -5 -8
820
821If `cperl-indent-level' is 0, the statement after opening brace in column 0 is indented on `cperl-brace-offset'+`cperl-continued-statement-offset'.
822
823Turning on CPerl mode calls the hooks in the variable `cperl-mode-hook'
824with no args."
825 (interactive)
826 (kill-all-local-variables)
827 ;;(if cperl-hairy
828 ;; (progn
829 ;; (cperl-set 'cperl-font-lock cperl-hairy)
830 ;; (cperl-set 'cperl-electric-lbrace-space cperl-hairy)
831 ;; (cperl-set 'cperl-electric-parens "{[(<")
832 ;; (cperl-set 'cperl-electric-keywords cperl-hairy)
833 ;; (cperl-set 'cperl-electric-linefeed cperl-hairy)))
834 (use-local-map cperl-mode-map)
835 (if (cperl-val 'cperl-electric-linefeed)
836 (progn
837 (local-set-key "\C-J" 'cperl-linefeed)
838 (local-set-key "\C-C\C-J" 'newline-and-indent)))
839 (if (cperl-val 'cperl-info-on-command-no-prompt)
840 (progn
841 ;; don't clobber the backspace binding:
842 (cperl-define-key "\C-hf" 'cperl-info-on-current-command [(control h) f])
843 (cperl-define-key "\C-c\C-hf" 'cperl-info-on-command
844 [(control c) (control h) f])))
845 (setq major-mode 'perl-mode)
846 (setq mode-name "CPerl")
847 (if (not cperl-mode-abbrev-table)
848 (let ((prev-a-c abbrevs-changed))
849 (define-abbrev-table 'cperl-mode-abbrev-table '(
850 ("if" "if" cperl-electric-keyword 0)
851 ("elsif" "elsif" cperl-electric-keyword 0)
852 ("while" "while" cperl-electric-keyword 0)
853 ("until" "until" cperl-electric-keyword 0)
854 ("unless" "unless" cperl-electric-keyword 0)
855 ("else" "else" cperl-electric-else 0)
856 ("for" "for" cperl-electric-keyword 0)
857 ("foreach" "foreach" cperl-electric-keyword 0)
858 ("do" "do" cperl-electric-keyword 0)))
859 (setq abbrevs-changed prev-a-c)))
860 (setq local-abbrev-table cperl-mode-abbrev-table)
861 (abbrev-mode (if (cperl-val 'cperl-electric-keywords) 1 0))
862 (set-syntax-table cperl-mode-syntax-table)
863 (make-local-variable 'paragraph-start)
864 (setq paragraph-start (concat "^$\\|" page-delimiter))
865 (make-local-variable 'paragraph-separate)
866 (setq paragraph-separate paragraph-start)
867 (make-local-variable 'paragraph-ignore-fill-prefix)
868 (setq paragraph-ignore-fill-prefix t)
869 (make-local-variable 'indent-line-function)
870 (setq indent-line-function 'cperl-indent-line)
871 (make-local-variable 'require-final-newline)
872 (setq require-final-newline t)
873 (make-local-variable 'comment-start)
874 (setq comment-start "# ")
875 (make-local-variable 'comment-end)
876 (setq comment-end "")
877 (make-local-variable 'comment-column)
878 (setq comment-column cperl-comment-column)
879 (make-local-variable 'comment-start-skip)
880 (setq comment-start-skip "#+ *")
881 (make-local-variable 'defun-prompt-regexp)
882 (setq defun-prompt-regexp "^[ \t]*sub[ \t]+\\([^ \t\n{(;]+\\)[ \t]*")
883 (make-local-variable 'comment-indent-function)
884 (setq comment-indent-function 'cperl-comment-indent)
885 (make-local-variable 'parse-sexp-ignore-comments)
886 (setq parse-sexp-ignore-comments t)
887 (make-local-variable 'indent-region-function)
888 (setq indent-region-function 'cperl-indent-region)
889 ;;(setq auto-fill-function 'cperl-do-auto-fill) ; Need to switch on and off!
890 (make-local-variable 'imenu-create-index-function)
891 (setq imenu-create-index-function
892 (function imenu-example--create-perl-index))
893 (make-local-variable 'imenu-sort-function)
894 (setq imenu-sort-function nil)
895 (make-local-variable 'vc-header-alist)
896 (setq vc-header-alist cperl-vc-header-alist)
897 (make-local-variable 'font-lock-defaults)
898 (setq font-lock-defaults
899 (if (string< emacs-version "19.30")
900 '(perl-font-lock-keywords-2)
901 '((perl-font-lock-keywords
902 perl-font-lock-keywords-1
903 perl-font-lock-keywords-2))))
904 (if cperl-use-syntax-table-text-property
905 (progn
906 (make-variable-buffer-local 'parse-sexp-lookup-properties)
907 ;; Do not introduce variable if not needed, we check it!
908 (set 'parse-sexp-lookup-properties t)))
909 (or (fboundp 'cperl-old-auto-fill-mode)
910 (progn
911 (fset 'cperl-old-auto-fill-mode (symbol-function 'auto-fill-mode))
912 (defun auto-fill-mode (&optional arg)
913 (interactive "P")
914 (cperl-old-auto-fill-mode arg)
915 (and auto-fill-function (eq major-mode 'perl-mode)
916 (setq auto-fill-function 'cperl-do-auto-fill)))))
917 (if (cperl-enable-font-lock)
918 (if (cperl-val 'cperl-font-lock)
919 (progn (or cperl-faces-init (cperl-init-faces))
920 (font-lock-mode 1))))
921 (and (boundp 'msb-menu-cond)
922 (not cperl-msb-fixed)
923 (cperl-msb-fix))
924 (if (featurep 'easymenu)
925 (easy-menu-add cperl-menu)) ; A NOP in Emacs.
926 (run-hooks 'cperl-mode-hook)
927 ;; After hooks since fontification will break this
928 (if cperl-pod-here-scan (cperl-find-pods-heres)))
929
930;; Fix for perldb - make default reasonable
931(defun cperl-db ()
932 (interactive)
933 (require 'gud)
934 (perldb (read-from-minibuffer "Run perldb (like this): "
935 (if (consp gud-perldb-history)
936 (car gud-perldb-history)
937 (concat "perl " ;;(file-name-nondirectory
938 ;; I have problems
939 ;; in OS/2
940 ;; otherwise
941 (buffer-file-name)))
942 nil nil
943 '(gud-perldb-history . 1))))
944
945
946(defun cperl-msb-fix ()
947 ;; Adds perl files to msb menu, supposes that msb is already loaded
948 (setq cperl-msb-fixed t)
949 (let* ((l (length msb-menu-cond))
950 (last (nth (1- l) msb-menu-cond))
951 (precdr (nthcdr (- l 2) msb-menu-cond)) ; cdr of this is last
952 (handle (1- (nth 1 last))))
953 (setcdr precdr (list
954 (list
955 '(eq major-mode 'perl-mode)
956 handle
957 "Perl Files (%d)")
958 last))))
959
960;; This is used by indent-for-comment
961;; to decide how much to indent a comment in CPerl code
962;; based on its context. Do fallback if comment is found wrong.
963
964(defvar cperl-wrong-comment)
965
966(defun cperl-comment-indent ()
967 (let ((p (point)) (c (current-column)) was)
968 (if (looking-at "^#") 0 ; Existing comment at bol stays there.
969 ;; Wrong comment found
970 (save-excursion
971 (setq was (cperl-to-comment-or-eol))
972 (if (= (point) p)
973 (progn
974 (skip-chars-backward " \t")
975 (max (1+ (current-column)) ; Else indent at comment column
976 comment-column))
977 (if was nil
978 (insert comment-start)
979 (backward-char (length comment-start)))
980 (setq cperl-wrong-comment t)
981 (indent-to comment-column 1) ; Indent minimum 1
982 c))))) ; except leave at least one space.
983
984;;;(defun cperl-comment-indent-fallback ()
985;;; "Is called if the standard comment-search procedure fails.
986;;;Point is at start of real comment."
987;;; (let ((c (current-column)) target cnt prevc)
988;;; (if (= c comment-column) nil
989;;; (setq cnt (skip-chars-backward "[ \t]"))
990;;; (setq target (max (1+ (setq prevc
991;;; (current-column))) ; Else indent at comment column
992;;; comment-column))
993;;; (if (= c comment-column) nil
994;;; (delete-backward-char cnt)
995;;; (while (< prevc target)
996;;; (insert "\t")
997;;; (setq prevc (current-column)))
998;;; (if (> prevc target) (progn (delete-char -1) (setq prevc (current-column))))
999;;; (while (< prevc target)
1000;;; (insert " ")
1001;;; (setq prevc (current-column)))))))
1002
1003(defun cperl-indent-for-comment ()
1004 "Substitute for `indent-for-comment' in CPerl."
1005 (interactive)
1006 (let (cperl-wrong-comment)
1007 (indent-for-comment)
1008 (if cperl-wrong-comment
1009 (progn (cperl-to-comment-or-eol)
1010 (forward-char (length comment-start))))))
1011
1012(defun cperl-comment-region (b e arg)
1013 "Comment or uncomment each line in the region in CPerl mode.
1014See `comment-region'."
1015 (interactive "r\np")
1016 (let ((comment-start "#"))
1017 (comment-region b e arg)))
1018
1019(defun cperl-uncomment-region (b e arg)
1020 "Uncomment or comment each line in the region in CPerl mode.
1021See `comment-region'."
1022 (interactive "r\np")
1023 (let ((comment-start "#"))
1024 (comment-region b e (- arg))))
1025
1026(defvar cperl-brace-recursing nil)
1027
1028(defun cperl-electric-brace (arg &optional only-before)
1029 "Insert character and correct line's indentation.
1030If ONLY-BEFORE and `cperl-auto-newline', will insert newline before the
1031place (even in empty line), but not after. If after \")\" and the inserted
1032char is \"{\", insert extra newline before only if
1033`cperl-extra-newline-before-brace'."
1034 (interactive "P")
1035 (let (insertpos
1036 (other-end (if (and cperl-electric-parens-mark
1037 (cperl-mark-active)
1038 (< (mark) (point)))
1039 (mark)
1040 nil)))
1041 (if (and other-end
1042 (not cperl-brace-recursing)
1043 (cperl-val 'cperl-electric-parens)
1044 (>= (save-excursion (cperl-to-comment-or-eol) (point)) (point)))
1045 ;; Need to insert a matching pair
1046 (progn
1047 (save-excursion
1048 (setq insertpos (point-marker))
1049 (goto-char other-end)
1050 (setq last-command-char ?\{)
1051 (cperl-electric-lbrace arg insertpos))
1052 (forward-char 1))
1053 (if (and (not arg) ; No args, end (of empty line or auto)
1054 (eolp)
1055 (or (and (null only-before)
1056 (save-excursion
1057 (skip-chars-backward " \t")
1058 (bolp)))
1059 (and (eq last-command-char ?\{) ; Do not insert newline
1060 ;; if after ")" and `cperl-extra-newline-before-brace'
1061 ;; is nil, do not insert extra newline.
1062 (not cperl-extra-newline-before-brace)
1063 (save-excursion
1064 (skip-chars-backward " \t")
1065 (eq (preceding-char) ?\))))
1066 (if cperl-auto-newline
1067 (progn (cperl-indent-line) (newline) t) nil)))
1068 (progn
1069 (self-insert-command (prefix-numeric-value arg))
1070 (cperl-indent-line)
1071 (if cperl-auto-newline
1072 (setq insertpos (1- (point))))
1073 (if (and cperl-auto-newline (null only-before))
1074 (progn
1075 (newline)
1076 (cperl-indent-line)))
1077 (save-excursion
1078 (if insertpos (progn (goto-char insertpos)
1079 (search-forward (make-string
1080 1 last-command-char))
1081 (setq insertpos (1- (point)))))
1082 (delete-char -1))))
1083 (if insertpos
1084 (save-excursion
1085 (goto-char insertpos)
1086 (self-insert-command (prefix-numeric-value arg)))
1087 (self-insert-command (prefix-numeric-value arg))))))
1088
1089(defun cperl-electric-lbrace (arg &optional end)
1090 "Insert character, correct line's indentation, correct quoting by space."
1091 (interactive "P")
1092 (let (pos after
1093 (cperl-brace-recursing t)
1094 (cperl-auto-newline cperl-auto-newline)
1095 (other-end (or end
1096 (if (and cperl-electric-parens-mark
1097 (cperl-mark-active)
1098 (> (mark) (point)))
1099 (save-excursion
1100 (goto-char (mark))
1101 (point-marker))
1102 nil))))
1103 (and (cperl-val 'cperl-electric-lbrace-space)
1104 (eq (preceding-char) ?$)
1105 (save-excursion
1106 (skip-chars-backward "$")
1107 (looking-at "\\(\\$\\$\\)*\\$\\([^\\$]\\|$\\)"))
1108 (insert ?\ ))
1109 (if (cperl-after-expr-p nil "{;)") nil (setq cperl-auto-newline nil))
1110 (cperl-electric-brace arg)
1111 (and (cperl-val 'cperl-electric-parens)
1112 (eq last-command-char ?{)
1113 (memq last-command-char
1114 (append cperl-electric-parens-string nil))
1115 (or (if other-end (goto-char (marker-position other-end)))
1116 t)
1117 (setq last-command-char ?} pos (point))
1118 (progn (cperl-electric-brace arg t)
1119 (goto-char pos)))))
1120
1121(defun cperl-electric-paren (arg)
1122 "Insert a matching pair of parentheses."
1123 (interactive "P")
1124 (let ((beg (save-excursion (beginning-of-line) (point)))
1125 (other-end (if (and cperl-electric-parens-mark
1126 (cperl-mark-active)
1127 (> (mark) (point)))
1128 (save-excursion
1129 (goto-char (mark))
1130 (point-marker))
1131 nil)))
1132 (if (and (cperl-val 'cperl-electric-parens)
1133 (memq last-command-char
1134 (append cperl-electric-parens-string nil))
1135 (>= (save-excursion (cperl-to-comment-or-eol) (point)) (point))
1136 ;;(not (save-excursion (search-backward "#" beg t)))
1137 (if (eq last-command-char ?<)
1138 (progn
1139 (and abbrev-mode ; later it is too late, may be after `for'
1140 (expand-abbrev))
1141 (cperl-after-expr-p nil "{;(,:="))
1142 1))
1143 (progn
1144 (self-insert-command (prefix-numeric-value arg))
1145 (if other-end (goto-char (marker-position other-end)))
1146 (insert (make-string
1147 (prefix-numeric-value arg)
1148 (cdr (assoc last-command-char '((?{ .?})
1149 (?[ . ?])
1150 (?( . ?))
1151 (?< . ?>))))))
1152 (forward-char (- (prefix-numeric-value arg))))
1153 (self-insert-command (prefix-numeric-value arg)))))
1154
1155(defun cperl-electric-rparen (arg)
1156 "Insert a matching pair of parentheses if marking is active.
1157If not, or if we are not at the end of marking range, would self-insert."
1158 (interactive "P")
1159 (let ((beg (save-excursion (beginning-of-line) (point)))
1160 (other-end (if (and cperl-electric-parens-mark
1161 (cperl-val 'cperl-electric-parens)
1162 (memq last-command-char
1163 (append cperl-electric-parens-string nil))
1164 (cperl-mark-active)
1165 (< (mark) (point)))
1166 (mark)
1167 nil))
1168 p)
1169 (if (and other-end
1170 (cperl-val 'cperl-electric-parens)
1171 (memq last-command-char '( ?\) ?\] ?\} ?\> ))
1172 (>= (save-excursion (cperl-to-comment-or-eol) (point)) (point))
1173 ;;(not (save-excursion (search-backward "#" beg t)))
1174 )
1175 (progn
1176 (self-insert-command (prefix-numeric-value arg))
1177 (setq p (point))
1178 (if other-end (goto-char other-end))
1179 (insert (make-string
1180 (prefix-numeric-value arg)
1181 (cdr (assoc last-command-char '((?\} . ?\{)
1182 (?\] . ?\[)
1183 (?\) . ?\()
1184 (?\> . ?\<))))))
1185 (goto-char (1+ p)))
1186 (self-insert-command (prefix-numeric-value arg)))))
1187
1188(defun cperl-electric-keyword ()
1189 "Insert a construction appropriate after a keyword."
1190 (let ((beg (save-excursion (beginning-of-line) (point)))
1191 (dollar (and (eq last-command-char ?$)
1192 (eq this-command 'self-insert-command)))
1193 (delete (and (memq last-command-char '(?\ ?\n ?\t ?\f))
1194 (memq this-command '(self-insert-command newline)))))
1195 (and (save-excursion
1196 (backward-sexp 1)
1197 (cperl-after-expr-p nil "{;:"))
1198 (save-excursion
1199 (not
1200 (re-search-backward
1201 "[#\"'`]\\|\\<q\\(\\|[wqx]\\)\\>"
1202 beg t)))
1203 (save-excursion (or (not (re-search-backward "^=" nil t))
1204 (looking-at "=cut")))
1205 (progn
1206 (and dollar (insert " $"))
1207 (cperl-indent-line)
1208 ;;(insert " () {\n}")
1209 (cond
1210 (cperl-extra-newline-before-brace
1211 (insert " ()\n")
1212 (insert "{")
1213 (cperl-indent-line)
1214 (insert "\n")
1215 (cperl-indent-line)
1216 (insert "\n}"))
1217 (t
1218 (insert " () {\n}"))
1219 )
1220 (or (looking-at "[ \t]\\|$") (insert " "))
1221 (cperl-indent-line)
1222 (if dollar (progn (search-backward "$")
1223 (delete-char 1)
1224 (forward-char -1)
1225 (forward-char 1))
1226 (search-backward ")"))
1227 (if delete
1228 (cperl-putback-char cperl-del-back-ch))))))
1229
1230(defun cperl-electric-else ()
1231 "Insert a construction appropriate after a keyword."
1232 (let ((beg (save-excursion (beginning-of-line) (point))))
1233 (and (save-excursion
1234 (backward-sexp 1)
1235 (cperl-after-expr-p nil "{;:"))
1236 (save-excursion
1237 (not
1238 (re-search-backward
1239 "[#\"'`]\\|\\<q\\(\\|[wqx]\\)\\>"
1240 beg t)))
1241 (save-excursion (or (not (re-search-backward "^=" nil t))
1242 (looking-at "=cut")))
1243 (progn
1244 (cperl-indent-line)
1245 ;;(insert " {\n\n}")
1246 (cond
1247 (cperl-extra-newline-before-brace
1248 (insert "\n")
1249 (insert "{")
1250 (cperl-indent-line)
1251 (insert "\n\n}"))
1252 (t
1253 (insert " {\n\n}"))
1254 )
1255 (or (looking-at "[ \t]\\|$") (insert " "))
1256 (cperl-indent-line)
1257 (forward-line -1)
1258 (cperl-indent-line)
1259 (cperl-putback-char cperl-del-back-ch)))))
1260
1261(defun cperl-linefeed ()
1262 "Go to end of line, open a new line and indent appropriately."
1263 (interactive)
1264 (let ((beg (save-excursion (beginning-of-line) (point)))
1265 (end (save-excursion (end-of-line) (point)))
1266 (pos (point)) start)
1267 (if (and ; Check if we need to split:
1268 ; i.e., on a boundary and inside "{...}"
1269 (save-excursion (cperl-to-comment-or-eol)
1270 (>= (point) pos)) ; Not in a comment
1271 (or (save-excursion
1272 (skip-chars-backward " \t" beg)
1273 (forward-char -1)
1274 (looking-at "[;{]")) ; After { or ; + spaces
1275 (looking-at "[ \t]*}") ; Before }
1276 (re-search-forward "\\=[ \t]*;" end t)) ; Before spaces + ;
1277 (save-excursion
1278 (and
1279 (eq (car (parse-partial-sexp pos end -1)) -1)
1280 ; Leave the level of parens
1281 (looking-at "[,; \t]*\\($\\|#\\)") ; Comma to allow anon subr
1282 ; Are at end
1283 (progn
1284 (backward-sexp 1)
1285 (setq start (point-marker))
1286 (<= start pos))))) ; RedundantAre after the
1287 ; start of parens group.
1288 (progn
1289 (skip-chars-backward " \t")
1290 (or (memq (preceding-char) (append ";{" nil))
1291 (insert ";"))
1292 (insert "\n")
1293 (forward-line -1)
1294 (cperl-indent-line)
1295 (goto-char start)
1296 (or (looking-at "{[ \t]*$") ; If there is a statement
1297 ; before, move it to separate line
1298 (progn
1299 (forward-char 1)
1300 (insert "\n")
1301 (cperl-indent-line)))
1302 (forward-line 1) ; We are on the target line
1303 (cperl-indent-line)
1304 (beginning-of-line)
1305 (or (looking-at "[ \t]*}[,; \t]*$") ; If there is a statement
1306 ; after, move it to separate line
1307 (progn
1308 (end-of-line)
1309 (search-backward "}" beg)
1310 (skip-chars-backward " \t")
1311 (or (memq (preceding-char) (append ";{" nil))
1312 (insert ";"))
1313 (insert "\n")
1314 (cperl-indent-line)
1315 (forward-line -1)))
1316 (forward-line -1) ; We are on the line before target
1317 (end-of-line)
1318 (newline-and-indent))
1319 (end-of-line) ; else
1320 (cond
1321 ((and (looking-at "\n[ \t]*{$")
1322 (save-excursion
1323 (skip-chars-backward " \t")
1324 (eq (preceding-char) ?\)))) ; Probably if () {} group
1325 ; with an extra newline.
1326 (forward-line 2)
1327 (cperl-indent-line))
1328 ((looking-at "\n[ \t]*$") ; Next line is empty - use it.
1329 (forward-line 1)
1330 (cperl-indent-line))
1331 (t
1332 (newline-and-indent))))))
1333
1334(defun cperl-electric-semi (arg)
1335 "Insert character and correct line's indentation."
1336 (interactive "P")
1337 (if cperl-auto-newline
1338 (cperl-electric-terminator arg)
1339 (self-insert-command (prefix-numeric-value arg))))
1340
1341(defun cperl-electric-terminator (arg)
1342 "Insert character and correct line's indentation."
1343 (interactive "P")
1344 (let (insertpos (end (point))
1345 (auto (and cperl-auto-newline
1346 (or (not (eq last-command-char ?:))
1347 cperl-auto-newline-after-colon))))
1348 (if (and ;;(not arg)
1349 (eolp)
1350 (not (save-excursion
1351 (beginning-of-line)
1352 (skip-chars-forward " \t")
1353 (or
1354 ;; Ignore in comment lines
1355 (= (following-char) ?#)
1356 ;; Colon is special only after a label
1357 ;; So quickly rule out most other uses of colon
1358 ;; and do no indentation for them.
1359 (and (eq last-command-char ?:)
1360 (save-excursion
1361 (forward-word 1)
1362 (skip-chars-forward " \t")
1363 (and (< (point) end)
1364 (progn (goto-char (- end 1))
1365 (not (looking-at ":"))))))
1366 (progn
1367 (beginning-of-defun)
1368 (let ((pps (parse-partial-sexp (point) end)))
1369 (or (nth 3 pps) (nth 4 pps) (nth 5 pps))))))))
1370 (progn
1371 (self-insert-command (prefix-numeric-value arg))
1372 ;;(forward-char -1)
1373 (if auto (setq insertpos (point-marker)))
1374 ;;(forward-char 1)
1375 (cperl-indent-line)
1376 (if auto
1377 (progn
1378 (newline)
1379 (cperl-indent-line)))
1380;; (save-excursion
1381;; (if insertpos (progn (goto-char (marker-position insertpos))
1382;; (search-forward (make-string
1383;; 1 last-command-char))
1384;; (setq insertpos (1- (point)))))
1385;; (delete-char -1))))
1386 (save-excursion
1387 (if insertpos (goto-char (1- (marker-position insertpos)))
1388 (forward-char -1))
1389 (delete-char 1))))
1390 (if insertpos
1391 (save-excursion
1392 (goto-char insertpos)
1393 (self-insert-command (prefix-numeric-value arg)))
1394 (self-insert-command (prefix-numeric-value arg)))))
1395
1396(defun cperl-electric-backspace (arg)
1397 "Backspace-untabify, or remove the whitespace inserted by an electric key."
1398 (interactive "p")
1399 (if (and cperl-auto-newline
1400 (memq last-command '(cperl-electric-semi
1401 cperl-electric-terminator
1402 cperl-electric-lbrace))
1403 (memq (preceding-char) '(?\ ?\t ?\n)))
1404 (let (p)
1405 (if (eq last-command 'cperl-electric-lbrace)
1406 (skip-chars-forward " \t\n"))
1407 (setq p (point))
1408 (skip-chars-backward " \t\n")
1409 (delete-region (point) p))
1410 (backward-delete-char-untabify arg)))
1411
1412(defun cperl-inside-parens-p ()
1413 (condition-case ()
1414 (save-excursion
1415 (save-restriction
1416 (narrow-to-region (point)
1417 (progn (beginning-of-defun) (point)))
1418 (goto-char (point-max))
1419 (= (char-after (or (scan-lists (point) -1 1) (point-min))) ?\()))
1420 (error nil)))
1421
1422(defun cperl-indent-command (&optional whole-exp)
1423 "Indent current line as Perl code, or in some cases insert a tab character.
1424If `cperl-tab-always-indent' is non-nil (the default), always indent current line.
1425Otherwise, indent the current line only if point is at the left margin
1426or in the line's indentation; otherwise insert a tab.
1427
1428A numeric argument, regardless of its value,
1429means indent rigidly all the lines of the expression starting after point
1430so that this line becomes properly indented.
1431The relative indentation among the lines of the expression are preserved."
1432 (interactive "P")
1433 (if whole-exp
1434 ;; If arg, always indent this line as Perl
1435 ;; and shift remaining lines of expression the same amount.
1436 (let ((shift-amt (cperl-indent-line))
1437 beg end)
1438 (save-excursion
1439 (if cperl-tab-always-indent
1440 (beginning-of-line))
1441 (setq beg (point))
1442 (forward-sexp 1)
1443 (setq end (point))
1444 (goto-char beg)
1445 (forward-line 1)
1446 (setq beg (point)))
1447 (if (> end beg)
1448 (indent-code-rigidly beg end shift-amt "#")))
1449 (if (and (not cperl-tab-always-indent)
1450 (save-excursion
1451 (skip-chars-backward " \t")
1452 (not (bolp))))
1453 (insert-tab)
1454 (cperl-indent-line))))
1455
1456(defun cperl-indent-line (&optional symbol)
1457 "Indent current line as Perl code.
1458Return the amount the indentation changed by."
1459 (let (indent
1460 beg shift-amt
1461 (case-fold-search nil)
1462 (pos (- (point-max) (point))))
1463 (setq indent (cperl-calculate-indent nil symbol))
1464 (beginning-of-line)
1465 (setq beg (point))
1466 (cond ((or (eq indent nil) (eq indent t))
1467 (setq indent (current-indentation)))
1468 ;;((eq indent t) ; Never?
1469 ;; (setq indent (cperl-calculate-indent-within-comment)))
1470 ;;((looking-at "[ \t]*#")
1471 ;; (setq indent 0))
1472 (t
1473 (skip-chars-forward " \t")
1474 (if (listp indent) (setq indent (car indent)))
1475 (cond ((looking-at "[A-Za-z_][A-Za-z_0-9]*:[^:]")
1476 (and (> indent 0)
1477 (setq indent (max cperl-min-label-indent
1478 (+ indent cperl-label-offset)))))
1479 ((= (following-char) ?})
1480 (setq indent (- indent cperl-indent-level)))
1481 ((memq (following-char) '(?\) ?\])) ; To line up with opening paren.
1482 (setq indent (+ indent cperl-close-paren-offset)))
1483 ((= (following-char) ?{)
1484 (setq indent (+ indent cperl-brace-offset))))))
1485 (skip-chars-forward " \t")
1486 (setq shift-amt (- indent (current-column)))
1487 (if (zerop shift-amt)
1488 (if (> (- (point-max) pos) (point))
1489 (goto-char (- (point-max) pos)))
1490 (delete-region beg (point))
1491 (indent-to indent)
1492 ;; If initial point was within line's indentation,
1493 ;; position after the indentation. Else stay at same point in text.
1494 (if (> (- (point-max) pos) (point))
1495 (goto-char (- (point-max) pos))))
1496 shift-amt))
1497
1498(defun cperl-after-label ()
1499 ;; Returns true if the point is after label. Does not do save-excursion.
1500 (and (eq (preceding-char) ?:)
1501 (memq (char-syntax (char-after (- (point) 2)))
1502 '(?w ?_))
1503 (progn
1504 (backward-sexp)
1505 (looking-at "[a-zA-Z_][a-zA-Z0-9_]*:[^:]"))))
1506
1507(defun cperl-get-state (&optional parse-start start-state)
1508 ;; returns list (START STATE DEPTH PRESTART), START is a good place
1509 ;; to start parsing, STATE is what is returned by
1510 ;; `parse-partial-sexp'. DEPTH is true is we are immediately after
1511 ;; end of block which contains START. PRESTART is the position
1512 ;; basing on which START was found.
1513 (save-excursion
1514 (let ((start-point (point)) depth state start prestart)
1515 (if parse-start
1516 (goto-char parse-start)
1517 (beginning-of-defun))
1518 (setq prestart (point))
1519 (if start-state nil
1520 ;; Try to go out, if sub is not on the outermost level
1521 (while (< (point) start-point)
1522 (setq start (point) parse-start start depth nil
1523 state (parse-partial-sexp start start-point -1))
1524 (if (> (car state) -1) nil
1525 ;; The current line could start like }}}, so the indentation
1526 ;; corresponds to a different level than what we reached
1527 (setq depth t)
1528 (beginning-of-line 2))) ; Go to the next line.
1529 (if start (goto-char start))) ; Not at the start of file
1530 (setq start (point))
1531 (if (< start start-point) (setq parse-start start))
1532 (or state (setq state (parse-partial-sexp start start-point -1 nil start-state)))
1533 (list start state depth prestart))))
1534
1535(defun cperl-block-p () ; Do not C-M-q ! One string contains ";" !
1536 ;; Positions is before ?\{. Checks whether it starts a block.
1537 ;; No save-excursion!
1538 (cperl-backward-to-noncomment (point-min))
1539 ;;(skip-chars-backward " \t\n\f")
1540 (or (memq (preceding-char) (append ";){}$@&%\C-@" nil)) ; Or label! \C-@ at bobp
1541 ; Label may be mixed up with `$blah :'
1542 (save-excursion (cperl-after-label))
1543 (and (memq (char-syntax (preceding-char)) '(?w ?_))
1544 (progn
1545 (backward-sexp)
1546 ;; Need take into account `bless', `return', `tr',...
1547 (or (and (looking-at "[a-zA-Z0-9_:]+[ \t\n\f]*[{#]") ; Method call syntax
1548 (not (looking-at "\\(bless\\|return\\|qw\\|tr\\|[smy]\\)\\>")))
1549 (progn
1550 (skip-chars-backward " \t\n\f")
1551 (and (memq (char-syntax (preceding-char)) '(?w ?_))
1552 (progn
1553 (backward-sexp)
1554 (looking-at
1555 "sub[ \t]+[a-zA-Z0-9_:]+[ \t\n\f]*\\(([^()]*)[ \t\n\f]*\\)?[#{]")))))))))
1556
1557(defvar cperl-look-for-prop '((pod in-pod) (here-doc-delim here-doc-group)))
1558
1559(defun cperl-calculate-indent (&optional parse-start symbol)
1560 "Return appropriate indentation for current line as Perl code.
1561In usual case returns an integer: the column to indent to.
1562Returns nil if line starts inside a string, t if in a comment."
1563 (save-excursion
1564 (if (or
1565 (memq (get-text-property (point) 'syntax-type)
1566 '(pod here-doc here-doc-delim format))
1567 ;; before start of POD - whitespace found since do not have 'pod!
1568 (and (looking-at "[ \t]*\n=")
1569 (error "Spaces before pod section!"))
1570 (and (not cperl-indent-left-aligned-comments)
1571 (looking-at "^#")))
1572 nil
1573 (beginning-of-line)
1574 (let ((indent-point (point))
1575 (char-after (save-excursion
1576 (skip-chars-forward " \t")
1577 (following-char)))
1578 (in-pod (get-text-property (point) 'in-pod))
1579 (pre-indent-point (point))
1580 p prop look-prop)
1581 (cond
1582 (in-pod
1583 ;; In the verbatim part, probably code example. What to do???
1584 )
1585 (t
1586 (save-excursion
1587 ;; Not in pod
1588 (cperl-backward-to-noncomment nil)
1589 (setq p (max (point-min) (1- (point)))
1590 prop (get-text-property p 'syntax-type)
1591 look-prop (or (nth 1 (assoc prop cperl-look-for-prop))
1592 'syntax-type))
1593 (if (memq prop '(pod here-doc format here-doc-delim))
1594 (progn
1595 (goto-char (or (previous-single-property-change p look-prop)
1596 (point-min)))
1597 (beginning-of-line)
1598 (setq pre-indent-point (point)))))))
1599 (goto-char pre-indent-point)
1600 (let* ((case-fold-search nil)
1601 (s-s (cperl-get-state))
1602 (start (nth 0 s-s))
1603 (state (nth 1 s-s))
1604 (containing-sexp (car (cdr state)))
1605 (start-indent (save-excursion
1606 (goto-char start)
1607 (- (current-indentation)
1608 (if (nth 2 s-s) cperl-indent-level 0))))
1609 old-indent)
1610 ;; (or parse-start (null symbol)
1611 ;; (setq parse-start (symbol-value symbol)
1612 ;; start-indent (nth 2 parse-start)
1613 ;; parse-start (car parse-start)))
1614 ;; (if parse-start
1615 ;; (goto-char parse-start)
1616 ;; (beginning-of-defun))
1617 ;; ;; Try to go out
1618 ;; (while (< (point) indent-point)
1619 ;; (setq start (point) parse-start start moved nil
1620 ;; state (parse-partial-sexp start indent-point -1))
1621 ;; (if (> (car state) -1) nil
1622 ;; ;; The current line could start like }}}, so the indentation
1623 ;; ;; corresponds to a different level than what we reached
1624 ;; (setq moved t)
1625 ;; (beginning-of-line 2))) ; Go to the next line.
1626 ;; (if start ; Not at the start of file
1627 ;; (progn
1628 ;; (goto-char start)
1629 ;; (setq start-indent (current-indentation))
1630 ;; (if moved ; Should correct...
1631 ;; (setq start-indent (- start-indent cperl-indent-level))))
1632 ;; (setq start-indent 0))
1633 ;; (if (< (point) indent-point) (setq parse-start (point)))
1634 ;; (or state (setq state (parse-partial-sexp
1635 ;; (point) indent-point -1 nil start-state)))
1636 ;; (setq containing-sexp
1637 ;; (or (car (cdr state))
1638 ;; (and (>= (nth 6 state) 0) old-containing-sexp))
1639 ;; old-containing-sexp nil start-state nil)
1640;;;; (while (< (point) indent-point)
1641;;;; (setq parse-start (point))
1642;;;; (setq state (parse-partial-sexp (point) indent-point -1 nil start-state))
1643;;;; (setq containing-sexp
1644;;;; (or (car (cdr state))
1645;;;; (and (>= (nth 6 state) 0) old-containing-sexp))
1646;;;; old-containing-sexp nil start-state nil))
1647 ;; (if symbol (set symbol (list indent-point state start-indent)))
1648 ;; (goto-char indent-point)
1649 (cond ((or (nth 3 state) (nth 4 state))
1650 ;; return nil or t if should not change this line
1651 (nth 4 state))
1652 ((null containing-sexp)
1653 ;; Line is at top level. May be data or function definition,
1654 ;; or may be function argument declaration.
1655 ;; Indent like the previous top level line
1656 ;; unless that ends in a closeparen without semicolon,
1657 ;; in which case this line is the first argument decl.
1658 (skip-chars-forward " \t")
1659 (+ start-indent
1660 (if (= (following-char) ?{) cperl-continued-brace-offset 0)
1661 (progn
1662 (cperl-backward-to-noncomment (or parse-start (point-min)))
1663 ;;(skip-chars-backward " \t\f\n")
1664 ;; Look at previous line that's at column 0
1665 ;; to determine whether we are in top-level decls
1666 ;; or function's arg decls. Set basic-indent accordingly.
1667 ;; Now add a little if this is a continuation line.
1668 (if (or (bobp)
1669 (memq (preceding-char) (append " ;}" nil)) ; Was ?\)
1670 (memq char-after (append ")]}" nil))
1671 (and (eq (preceding-char) ?\:) ; label
1672 (progn
1673 (forward-sexp -1)
1674 (skip-chars-backward " \t")
1675 (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*[ \t]*:"))))
1676 0
1677 cperl-continued-statement-offset))))
1678 ((/= (char-after containing-sexp) ?{)
1679 ;; line is expression, not statement:
1680 ;; indent to just after the surrounding open,
1681 ;; skip blanks if we do not close the expression.
1682 (goto-char (1+ containing-sexp))
1683 (or (memq char-after (append ")]}" nil))
1684 (looking-at "[ \t]*\\(#\\|$\\)")
1685 (skip-chars-forward " \t"))
1686 (current-column))
1687 ((progn
1688 ;; Containing-expr starts with \{. Check whether it is a hash.
1689 (goto-char containing-sexp)
1690 (not (cperl-block-p)))
1691 (goto-char (1+ containing-sexp))
1692 (or (eq char-after ?\})
1693 (looking-at "[ \t]*\\(#\\|$\\)")
1694 (skip-chars-forward " \t"))
1695 (+ (current-column) ; Correct indentation of trailing ?\}
1696 (if (eq char-after ?\}) (+ cperl-indent-level
1697 cperl-close-paren-offset)
1698 0)))
1699 (t
1700 ;; Statement level. Is it a continuation or a new statement?
1701 ;; Find previous non-comment character.
1702 (goto-char pre-indent-point)
1703 (cperl-backward-to-noncomment containing-sexp)
1704 ;; Back up over label lines, since they don't
1705 ;; affect whether our line is a continuation.
1706 (while (or (eq (preceding-char) ?\,)
1707 (and (eq (preceding-char) ?:)
1708 (or;;(eq (char-after (- (point) 2)) ?\') ; ????
1709 (memq (char-syntax (char-after (- (point) 2)))
1710 '(?w ?_)))))
1711 (if (eq (preceding-char) ?\,)
1712 ;; Will go to beginning of line, essentially.
1713 ;; Will ignore embedded sexpr XXXX.
1714 (cperl-backward-to-start-of-continued-exp containing-sexp))
1715 (beginning-of-line)
1716 (cperl-backward-to-noncomment containing-sexp))
1717 ;; Now we get the answer.
1718 (if (not (memq (preceding-char) (append ", ;}{" '(nil)))) ; Was ?\,
1719 ;; This line is continuation of preceding line's statement;
1720 ;; indent `cperl-continued-statement-offset' more than the
1721 ;; previous line of the statement.
1722 (progn
1723 (cperl-backward-to-start-of-continued-exp containing-sexp)
1724 (+ (if (memq char-after (append "}])" nil))
1725 0 ; Closing parenth
1726 cperl-continued-statement-offset)
1727 (current-column)
1728 (if (eq char-after ?\{)
1729 cperl-continued-brace-offset 0)))
1730 ;; This line starts a new statement.
1731 ;; Position following last unclosed open.
1732 (goto-char containing-sexp)
1733 ;; Is line first statement after an open-brace?
1734 (or
1735 ;; If no, find that first statement and indent like
1736 ;; it. If the first statement begins with label, do
1737 ;; not believe when the indentation of the label is too
1738 ;; small.
1739 (save-excursion
1740 (forward-char 1)
1741 (setq old-indent (current-indentation))
1742 (let ((colon-line-end 0))
1743 (while (progn (skip-chars-forward " \t\n")
1744 (looking-at "#\\|[a-zA-Z0-9_$]*:[^:]"))
1745 ;; Skip over comments and labels following openbrace.
1746 (cond ((= (following-char) ?\#)
1747 (forward-line 1))
1748 ;; label:
1749 (t
1750 (save-excursion (end-of-line)
1751 (setq colon-line-end (point)))
1752 (search-forward ":"))))
1753 ;; The first following code counts
1754 ;; if it is before the line we want to indent.
1755 (and (< (point) indent-point)
1756 (if (> colon-line-end (point)) ; After label
1757 (if (> (current-indentation)
1758 cperl-min-label-indent)
1759 (- (current-indentation) cperl-label-offset)
1760 ;; Do not believe: `max' is involved
1761 (+ old-indent cperl-indent-level))
1762 (current-column)))))
1763 ;; If no previous statement,
1764 ;; indent it relative to line brace is on.
1765 ;; For open brace in column zero, don't let statement
1766 ;; start there too. If cperl-indent-level is zero,
1767 ;; use cperl-brace-offset + cperl-continued-statement-offset instead.
1768 ;; For open-braces not the first thing in a line,
1769 ;; add in cperl-brace-imaginary-offset.
1770
1771 ;; If first thing on a line: ?????
1772 (+ (if (and (bolp) (zerop cperl-indent-level))
1773 (+ cperl-brace-offset cperl-continued-statement-offset)
1774 cperl-indent-level)
1775 ;; Move back over whitespace before the openbrace.
1776 ;; If openbrace is not first nonwhite thing on the line,
1777 ;; add the cperl-brace-imaginary-offset.
1778 (progn (skip-chars-backward " \t")
1779 (if (bolp) 0 cperl-brace-imaginary-offset))
1780 ;; If the openbrace is preceded by a parenthesized exp,
1781 ;; move to the beginning of that;
1782 ;; possibly a different line
1783 (progn
1784 (if (eq (preceding-char) ?\))
1785 (forward-sexp -1))
1786 ;; In the case it starts a subroutine, indent with
1787 ;; respect to `sub', not with respect to the the
1788 ;; first thing on the line, say in the case of
1789 ;; anonymous sub in a hash.
1790 ;;
1791 (skip-chars-backward " \t")
1792 (if (and (eq (preceding-char) ?b)
1793 (progn
1794 (forward-sexp -1)
1795 (looking-at "sub\\>"))
1796 (setq old-indent
1797 (nth 1
1798 (parse-partial-sexp
1799 (save-excursion (beginning-of-line) (point))
1800 (point)))))
1801 (progn (goto-char (1+ old-indent))
1802 (skip-chars-forward " \t")
1803 (current-column))
1804 ;; Get initial indentation of the line we are on.
1805 ;; If line starts with label, calculate label indentation
1806 (if (save-excursion
1807 (beginning-of-line)
1808 (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*:[^:]"))
1809 (if (> (current-indentation) cperl-min-label-indent)
1810 (- (current-indentation) cperl-label-offset)
1811 (cperl-calculate-indent
1812 (if (and parse-start (<= parse-start (point)))
1813 parse-start)))
1814 (current-indentation))))))))))))))
1815
1816(defvar cperl-indent-alist
1817 '((string nil)
1818 (comment nil)
1819 (toplevel 0)
1820 (toplevel-after-parenth 2)
1821 (toplevel-continued 2)
1822 (expression 1))
1823 "Alist of indentation rules for CPerl mode.
1824The values mean:
1825 nil: do not indent;
1826 number: add this amount of indentation.")
1827
1828(defun cperl-where-am-i (&optional parse-start start-state)
1829 ;; Unfinished
1830 "Return a list of lists ((TYPE POS)...) of good points before the point.
1831POS may be nil if it is hard to find, say, when TYPE is `string' or `comment'."
1832 (save-excursion
1833 (let* ((start-point (point))
1834 (s-s (cperl-get-state))
1835 (start (nth 0 s-s))
1836 (state (nth 1 s-s))
1837 (prestart (nth 3 s-s))
1838 (containing-sexp (car (cdr state)))
1839 (case-fold-search nil)
1840 (res (list (list 'parse-start start) (list 'parse-prestart prestart))))
1841 (cond ((nth 3 state) ; In string
1842 (setq res (cons (list 'string nil (nth 3 state)) res))) ; What started string
1843 ((nth 4 state) ; In comment
1844 (setq res (cons '(comment) res)))
1845 ((null containing-sexp)
1846 ;; Line is at top level.
1847 ;; Indent like the previous top level line
1848 ;; unless that ends in a closeparen without semicolon,
1849 ;; in which case this line is the first argument decl.
1850 (cperl-backward-to-noncomment (or parse-start (point-min)))
1851 ;;(skip-chars-backward " \t\f\n")
1852 (cond
1853 ((or (bobp)
1854 (memq (preceding-char) (append ";}" nil)))
1855 (setq res (cons (list 'toplevel start) res)))
1856 ((eq (preceding-char) ?\) )
1857 (setq res (cons (list 'toplevel-after-parenth start) res)))
1858 (t
1859 (setq res (cons (list 'toplevel-continued start) res)))))
1860 ((/= (char-after containing-sexp) ?{)
1861 ;; line is expression, not statement:
1862 ;; indent to just after the surrounding open.
1863 ;; skip blanks if we do not close the expression.
1864 (setq res (cons (list 'expression-blanks
1865 (progn
1866 (goto-char (1+ containing-sexp))
1867 (or (looking-at "[ \t]*\\(#\\|$\\)")
1868 (skip-chars-forward " \t"))
1869 (point)))
1870 (cons (list 'expression containing-sexp) res))))
1871 ((progn
1872 ;; Containing-expr starts with \{. Check whether it is a hash.
1873 (goto-char containing-sexp)
1874 (not (cperl-block-p)))
1875 (setq res (cons (list 'expression-blanks
1876 (progn
1877 (goto-char (1+ containing-sexp))
1878 (or (looking-at "[ \t]*\\(#\\|$\\)")
1879 (skip-chars-forward " \t"))
1880 (point)))
1881 (cons (list 'expression containing-sexp) res))))
1882 (t
1883 ;; Statement level.
1884 (setq res (cons (list 'in-block containing-sexp) res))
1885 ;; Is it a continuation or a new statement?
1886 ;; Find previous non-comment character.
1887 (cperl-backward-to-noncomment containing-sexp)
1888 ;; Back up over label lines, since they don't
1889 ;; affect whether our line is a continuation.
1890 ;; Back up comma-delimited lines too ?????
1891 (while (or (eq (preceding-char) ?\,)
1892 (save-excursion (cperl-after-label)))
1893 (if (eq (preceding-char) ?\,)
1894 ;; Will go to beginning of line, essentially
1895 ;; Will ignore embedded sexpr XXXX.
1896 (cperl-backward-to-start-of-continued-exp containing-sexp))
1897 (beginning-of-line)
1898 (cperl-backward-to-noncomment containing-sexp))
1899 ;; Now we get the answer.
1900 (if (not (memq (preceding-char) (append ";}{" '(nil)))) ; Was ?\,
1901 ;; This line is continuation of preceding line's statement.
1902 (list (list 'statement-continued containing-sexp))
1903 ;; This line starts a new statement.
1904 ;; Position following last unclosed open.
1905 (goto-char containing-sexp)
1906 ;; Is line first statement after an open-brace?
1907 (or
1908 ;; If no, find that first statement and indent like
1909 ;; it. If the first statement begins with label, do
1910 ;; not believe when the indentation of the label is too
1911 ;; small.
1912 (save-excursion
1913 (forward-char 1)
1914 (let ((colon-line-end 0))
1915 (while (progn (skip-chars-forward " \t\n" start-point)
1916 (and (< (point) start-point)
1917 (looking-at
1918 "#\\|[a-zA-Z_][a-zA-Z0-9_]*:[^:]")))
1919 ;; Skip over comments and labels following openbrace.
1920 (cond ((= (following-char) ?\#)
1921 ;;(forward-line 1)
1922 (end-of-line))
1923 ;; label:
1924 (t
1925 (save-excursion (end-of-line)
1926 (setq colon-line-end (point)))
1927 (search-forward ":"))))
1928 ;; Now at the point, after label, or at start
1929 ;; of first statement in the block.
1930 (and (< (point) start-point)
1931 (if (> colon-line-end (point))
1932 ;; Before statement after label
1933 (if (> (current-indentation)
1934 cperl-min-label-indent)
1935 (list (list 'label-in-block (point)))
1936 ;; Do not believe: `max' is involved
1937 (list
1938 (list 'label-in-block-min-indent (point))))
1939 ;; Before statement
1940 (list 'statement-in-block (point))))))
1941 ;; If no previous statement,
1942 ;; indent it relative to line brace is on.
1943 ;; For open brace in column zero, don't let statement
1944 ;; start there too. If cperl-indent-level is zero,
1945 ;; use cperl-brace-offset + cperl-continued-statement-offset instead.
1946 ;; For open-braces not the first thing in a line,
1947 ;; add in cperl-brace-imaginary-offset.
1948
1949 ;; If first thing on a line: ?????
1950 (+ (if (and (bolp) (zerop cperl-indent-level))
1951 (+ cperl-brace-offset cperl-continued-statement-offset)
1952 cperl-indent-level)
1953 ;; Move back over whitespace before the openbrace.
1954 ;; If openbrace is not first nonwhite thing on the line,
1955 ;; add the cperl-brace-imaginary-offset.
1956 (progn (skip-chars-backward " \t")
1957 (if (bolp) 0 cperl-brace-imaginary-offset))
1958 ;; If the openbrace is preceded by a parenthesized exp,
1959 ;; move to the beginning of that;
1960 ;; possibly a different line
1961 (progn
1962 (if (eq (preceding-char) ?\))
1963 (forward-sexp -1))
1964 ;; Get initial indentation of the line we are on.
1965 ;; If line starts with label, calculate label indentation
1966 (if (save-excursion
1967 (beginning-of-line)
1968 (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*:[^:]"))
1969 (if (> (current-indentation) cperl-min-label-indent)
1970 (- (current-indentation) cperl-label-offset)
1971 (cperl-calculate-indent
1972 (if (and parse-start (<= parse-start (point)))
1973 parse-start)))
1974 (current-indentation))))))))
1975 res)))
1976
1977(defun cperl-calculate-indent-within-comment ()
1978 "Return the indentation amount for line, assuming that
1979the current line is to be regarded as part of a block comment."
1980 (let (end star-start)
1981 (save-excursion
1982 (beginning-of-line)
1983 (skip-chars-forward " \t")
1984 (setq end (point))
1985 (and (= (following-char) ?#)
1986 (forward-line -1)
1987 (cperl-to-comment-or-eol)
1988 (setq end (point)))
1989 (goto-char end)
1990 (current-column))))
1991
1992
1993(defun cperl-to-comment-or-eol ()
1994 "Goes to position before comment on the current line, or to end of line.
1995Returns true if comment is found."
1996 (let (state stop-in cpoint (lim (progn (end-of-line) (point))))
1997 (beginning-of-line)
1998 (if (or
1999 (eq (get-text-property (point) 'syntax-type) 'pod)
2000 (re-search-forward "\\=[ \t]*\\(#\\|$\\)" lim t))
2001 (if (eq (preceding-char) ?\#) (progn (backward-char 1) t))
2002 ;; Else
2003 (while (not stop-in)
2004 (setq state (parse-partial-sexp (point) lim nil nil nil t))
2005 ; stop at comment
2006 ;; If fails (beginning-of-line inside sexp), then contains not-comment
2007 ;; Do simplified processing
2008 ;;(if (re-search-forward "[^$]#" lim 1)
2009 ;; (progn
2010 ;; (forward-char -1)
2011 ;; (skip-chars-backward " \t\n\f" lim))
2012 ;; (goto-char lim)) ; No `#' at all
2013 ;;)
2014 (if (nth 4 state) ; After `#';
2015 ; (nth 2 state) can be
2016 ; beginning of m,s,qq and so
2017 ; on
2018 (if (nth 2 state)
2019 (progn
2020 (setq cpoint (point))
2021 (goto-char (nth 2 state))
2022 (cond
2023 ((looking-at "\\(s\\|tr\\)\\>")
2024 (or (re-search-forward
2025 "\\=\\w+[ \t]*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*"
2026 lim 'move)
2027 (setq stop-in t)))
2028 ((looking-at "\\(m\\|q\\([qxw]\\)?\\)\\>")
2029 (or (re-search-forward
2030 "\\=\\w+[ \t]*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*#"
2031 lim 'move)
2032 (setq stop-in t)))
2033 (t ; It was fair comment
2034 (setq stop-in t) ; Finish
2035 (goto-char (1- cpoint)))))
2036 (setq stop-in t) ; Finish
2037 (forward-char -1))
2038 (setq stop-in t)) ; Finish
2039 )
2040 (nth 4 state))))
2041
2042(defsubst cperl-1- (p)
2043 (max (point-min) (1- p)))
2044
2045(defsubst cperl-1+ (p)
2046 (min (point-max) (1+ p)))
2047
2048(defvar cperl-st-cfence '(14)) ; Comment-fence
2049(defvar cperl-st-sfence '(15)) ; String-fence
2050(defvar cperl-st-punct '(1))
2051(defvar cperl-st-word '(2))
2052(defvar cperl-st-bra '(4 . ?\>))
2053(defvar cperl-st-ket '(5 . ?\<))
2054
2055(defsubst cperl-modify-syntax-type (at how)
2056 (if (< at (point-max))
2057 (progn
2058 (put-text-property at (1+ at) 'syntax-table how)
2059 (put-text-property at (1+ at) 'rear-nonsticky t))))
2060
2061(defun cperl-protect-defun-start (s e)
2062 ;; C code looks for "^\\s(" to skip comment backward in "hard" situations
2063 (save-excursion
2064 (goto-char s)
2065 (while (re-search-forward "^\\s(" e 'to-end)
2066 (put-text-property (1- (point)) (point) 'syntax-table cperl-st-punct))))
2067
2068(defun cperl-commentify (bb e string)
2069 (if cperl-use-syntax-table-text-property
2070 (progn
2071 ;; We suppose that e is _after_ the end of construction, as after eol.
2072 (setq string (if string cperl-st-sfence cperl-st-cfence))
2073 (cperl-modify-syntax-type bb string)
2074 (cperl-modify-syntax-type (1- e) string)
2075 (if (and (eq string cperl-st-sfence) (> (- e 2) bb))
2076 (put-text-property (1+ bb) (1- e)
2077 'syntax-table cperl-string-syntax-table))
2078 (cperl-protect-defun-start bb e))))
2079
2080(defun cperl-forward-re (lim end is-2arg set-st st-l err-l argument
2081 &optional ostart oend)
2082 ;; Works *before* syntax recognition is done
2083 ;; May modify syntax-type text property if the situation is too hard
2084 (let (b starter ender st i i2 go-forward)
2085 (skip-chars-forward " \t")
2086 ;; ender means matching-char matcher.
2087 (setq b (point)
2088 starter (char-after b)
2089 ;; ender:
2090 ender (cdr (assoc starter '(( ?\( . ?\) )
2091 ( ?\[ . ?\] )
2092 ( ?\{ . ?\} )
2093 ( ?\< . ?\> )
2094 ))))
2095 ;; What if starter == ?\\ ????
2096 (if set-st
2097 (if (car st-l)
2098 (setq st (car st-l))
2099 (setcar st-l (make-syntax-table))
2100 (setq i 0 st (car st-l))
2101 (while (< i 256)
2102 (modify-syntax-entry i "." st)
2103 (setq i (1+ i)))
2104 (modify-syntax-entry ?\\ "\\" st)))
2105 (setq set-st t)
2106 ;; Whether we have an intermediate point
2107 (setq i nil)
2108 ;; Prepare the syntax table:
2109 (and set-st
2110 (if (not ender) ; m/blah/, s/x//, s/x/y/
2111 (modify-syntax-entry starter "$" st)
2112 (modify-syntax-entry starter (concat "(" (list ender)) st)
2113 (modify-syntax-entry ender (concat ")" (list starter)) st)))
2114 (condition-case bb
2115 (progn
2116 (if (and (eq starter (char-after (cperl-1+ b)))
2117 (not ender))
2118 ;; $ has TeXish matching rules, so $$ equiv $...
2119 (forward-char 2)
2120 (set-syntax-table st)
2121 (forward-sexp 1)
2122 (set-syntax-table cperl-mode-syntax-table)
2123 ;; Now the problem is with m;blah;;
2124 (and (not ender)
2125 (eq (preceding-char)
2126 (char-after (- (point) 2)))
2127 (save-excursion
2128 (forward-char -2)
2129 (= 0 (% (skip-chars-backward "\\\\") 2)))
2130 (forward-char -1)))
2131 (and is-2arg ; Have trailing part
2132 (not ender)
2133 (eq (following-char) starter) ; Empty trailing part
2134 (progn
2135 (or (eq (char-syntax (following-char)) ?.)
2136 ;; Make trailing letter into punctuation
2137 (cperl-modify-syntax-type (point) cperl-st-punct))
2138 (setq is-2arg nil go-forward t))) ; Ignore the tail
2139 (if is-2arg ; Not number => have second part
2140 (progn
2141 (setq i (point) i2 i)
2142 (if ender
2143 (if (memq (following-char) '(?\ ?\t ?\n ?\f))
2144 (progn
2145 (if (looking-at "[ \t\n\f]+\\(#[^\n]*\n[ \t\n\f]*\\)+")
2146 (goto-char (match-end 0))
2147 (skip-chars-forward " \t\n\f"))
2148 (setq i2 (point))))
2149 (forward-char -1))
2150 (modify-syntax-entry starter (if (eq starter ?\\) "\\" ".") st)
2151 (if ender (modify-syntax-entry ender "." st))
2152 (setq set-st nil)
2153 (setq
2154 ender
2155 (cperl-forward-re lim end nil t st-l err-l argument starter ender)
2156 ender (nth 2 ender)))))
2157 (error (goto-char lim)
2158 (setq set-st nil)
2159 (or end
2160 (message
2161 "End of `%s%s%c ... %c' string not found: %s"
2162 argument
2163 (if ostart (format "%c ... %c" ostart (or oend ostart)) "")
2164 starter (or ender starter) bb)
2165 (or (car err-l) (setcar err-l b)))))
2166 (if set-st
2167 (progn
2168 (modify-syntax-entry starter (if (eq starter ?\\) "\\" ".") st)
2169 (if ender (modify-syntax-entry ender "." st))))
2170 (list i i2 ender starter go-forward)))
2171
2172(defun cperl-find-pods-heres (&optional min max non-inter end)
2173 "Scans the buffer for hard-to-parse Perl constructions.
2174If `cperl-pod-here-fontify' is not-nil after evaluation, will fontify
2175the sections using `cperl-pod-head-face', `cperl-pod-face',
2176`cperl-here-face'."
2177 (interactive)
2178 (or min (setq min (point-min)))
2179 (or max (setq max (point-max)))
2180 (let (face head-face here-face b e bb tag qtag b1 e1 argument i c tail state
2181 (cperl-pod-here-fontify (eval cperl-pod-here-fontify)) go
2182 (case-fold-search nil) (inhibit-read-only t) (buffer-undo-list t)
2183 (modified (buffer-modified-p))
2184 (after-change-functions nil)
2185 (state-point (point-min))
2186 (st-l '(nil)) (err-l '(nil)) i2
2187 ;; Somehow font-lock may be not loaded yet...
2188 (font-lock-string-face (if (boundp 'font-lock-string-face)
2189 font-lock-string-face
2190 'font-lock-string-face))
2191 (search
2192 (concat
2193 "\\(\\`\n?\\|\n\n\\)="
2194 "\\|"
2195 ;; One extra () before this:
2196 "<<"
2197 "\\("
2198 ;; First variant "BLAH" or just ``.
2199 "\\([\"'`]\\)"
2200 "\\([^\"'`\n]*\\)"
2201 "\\3"
2202 "\\|"
2203 ;; Second variant: Identifier or empty
2204 "\\(\\([a-zA-Z_][a-zA-Z_0-9]*\\)?\\)"
2205 ;; Check that we do not have <<= or << 30 or << $blah.
2206 "\\([^= \t$@%&]\\|[ \t]+[^ \t\n0-9$@%&]\\)"
2207 "\\)"
2208 "\\|"
2209 ;; 1+6 extra () before this:
2210 "^[ \t]*\\(format\\)[ \t]*\\([a-zA-Z0-9_]+\\)?[ \t]*=[ \t]*$"
2211 (if cperl-use-syntax-table-text-property
2212 (concat
2213 "\\|"
2214 ;; 1+6+2=9 extra () before this:
2215 "\\<\\(q[wxq]?\\|[msy]\\|tr\\)\\>"
2216 "\\|"
2217 ;; 1+6+2+1=10 extra () before this:
2218 "\\([?/]\\)" ; /blah/ or ?blah?
2219 "\\|"
2220 ;; 1+6+2+1+1=11 extra () before this:
2221 "\\<sub\\>[ \t]*\\([a-zA-Z_:'0-9]+[ \t]*\\)?\\(([^()]*)\\)"
2222 "\\|"
2223 ;; 1+6+2+1+1+2=13 extra () before this:
2224 "\\$\\(['{]\\)"
2225 "\\|"
2226 ;; 1+6+2+1+1+2+1=14 extra () before this:
2227 "\\(\\<sub[ \t\n\f]+\\|[&*$@%]\\)[a-zA-Z0-9_]*'"
2228 ;; 1+6+2+1+1+2+1+1=15 extra () before this:
2229 "\\|"
2230 "__\\(END\\|DATA\\)__" ; Commented - does not help with indent...
2231 )
2232 ""))))
2233 (unwind-protect
2234 (progn
2235 (save-excursion
2236 (or non-inter
2237 (message "Scanning for \"hard\" Perl constructions..."))
2238 (if cperl-pod-here-fontify
2239 ;; We had evals here, do not know why...
2240 (setq face cperl-pod-face
2241 head-face cperl-pod-head-face
2242 here-face cperl-here-face))
2243 (remove-text-properties min max
2244 '(syntax-type t in-pod t syntax-table t))
2245 ;; Need to remove face as well...
2246 (goto-char min)
2247 (if (and (eq system-type 'emx)
2248 (looking-at "extproc[ \t]")) ; Analogue of #!
2249 (cperl-commentify min
2250 (save-excursion (end-of-line) (point))
2251 nil))
2252 (while (re-search-forward search max t)
2253 (cond
2254 ((match-beginning 1) ; POD section
2255 ;; "\\(\\`\n?\\|\n\n\\)="
2256 (if (looking-at "\n*cut\\>")
2257 (progn
2258 (message "=cut is not preceded by a POD section")
2259 (or (car err-l) (setcar err-l (point))))
2260 (beginning-of-line)
2261
2262 (setq b (point) bb b)
2263 (or (re-search-forward "\n\n=cut\\>" max 'toend)
2264 (progn
2265 (message "End of a POD section not marked by =cut")
2266 (or (car err-l) (setcar err-l b))))
2267 (beginning-of-line 2) ; An empty line after =cut is not POD!
2268 (setq e (point))
2269 (put-text-property b e 'in-pod t)
2270 (goto-char b)
2271 (while (re-search-forward "\n\n[ \t]" e t)
2272 ;; We start 'pod 1 char earlier to include the preceding line
2273 (beginning-of-line)
2274 (put-text-property (cperl-1- b) (point) 'syntax-type 'pod)
2275 (cperl-put-do-not-fontify b (point))
2276 ;;(put-text-property (max (point-min) (1- b))
2277 ;; (point) cperl-do-not-fontify t)
2278 (if cperl-pod-here-fontify (put-text-property b (point) 'face face))
2279 (re-search-forward "\n\n[^ \t\f\n]" e 'toend)
2280 (beginning-of-line)
2281 (setq b (point)))
2282 (put-text-property (cperl-1- (point)) e 'syntax-type 'pod)
2283 (cperl-put-do-not-fontify (point) e)
2284 ;;(put-text-property (max (point-min) (1- (point)))
2285 ;; e cperl-do-not-fontify t)
2286 (if cperl-pod-here-fontify
2287 (progn (put-text-property (point) e 'face face)
2288 (goto-char bb)
2289 (if (looking-at
2290 "=[a-zA-Z0-9_]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$")
2291 (put-text-property
2292 (match-beginning 1) (match-end 1)
2293 'face head-face))
2294 (while (re-search-forward
2295 ;; One paragraph
2296 "\n\n=[a-zA-Z0-9_]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$"
2297 e 'toend)
2298 (put-text-property
2299 (match-beginning 1) (match-end 1)
2300 'face head-face))))
2301 (cperl-commentify bb e nil)
2302 (goto-char e)
2303 (or (eq e (point-max))
2304 (forward-char -1)))) ; Prepare for immediate pod start.
2305 ;; Here document
2306 ;; We do only one here-per-line
2307 ;; 1 () ahead
2308 ;; "<<\\(\\([\"'`]\\)\\([^\"'`\n]*\\)\\3\\|\\(\\([a-zA-Z_][a-zA-Z_0-9]*\\)?\\)\\)"
2309 ((match-beginning 2) ; 1 + 1
2310 ;; Abort in comment:
2311 (setq b (point))
2312 (setq state (parse-partial-sexp state-point b nil nil state)
2313 state-point b)
2314 (if ;;(save-excursion
2315 ;; (beginning-of-line)
2316 ;; (search-forward "#" b t))
2317 (or (nth 3 state) (nth 4 state))
2318 (goto-char (match-end 2))
2319 (if (match-beginning 5) ;4 + 1
2320 (setq b1 (match-beginning 5) ; 4 + 1
2321 e1 (match-end 5)) ; 4 + 1
2322 (setq b1 (match-beginning 4) ; 3 + 1
2323 e1 (match-end 4))) ; 3 + 1
2324 (setq tag (buffer-substring b1 e1)
2325 qtag (regexp-quote tag))
2326 (cond (cperl-pod-here-fontify
2327 (put-text-property b1 e1 'face font-lock-reference-face)
2328 (cperl-put-do-not-fontify b1 e1)))
2329 (forward-line)
2330 (setq b (point))
2331 (cond ((re-search-forward (concat "^" qtag "$") max 'toend)
2332 (if cperl-pod-here-fontify
2333 (progn
2334 (put-text-property (match-beginning 0) (match-end 0)
2335 'face font-lock-reference-face)
2336 (cperl-put-do-not-fontify b (match-end 0))
2337 ;;(put-text-property (max (point-min) (1- b))
2338 ;; (min (point-max)
2339 ;; (1+ (match-end 0)))
2340 ;; cperl-do-not-fontify t)
2341 (put-text-property b (match-beginning 0)
2342 'face here-face)))
2343 (setq e1 (cperl-1+ (match-end 0)))
2344 (put-text-property b (match-beginning 0)
2345 'syntax-type 'here-doc)
2346 (put-text-property (match-beginning 0) e1
2347 'syntax-type 'here-doc-delim)
2348 (put-text-property b e1
2349 'here-doc-group t)
2350 (cperl-commentify b e1 nil)
2351 (cperl-put-do-not-fontify b (match-end 0)))
2352 (t (message "End of here-document `%s' not found." tag)
2353 (or (car err-l) (setcar err-l b))))))
2354 ;; format
2355 ((match-beginning 8)
2356 ;; 1+6=7 extra () before this:
2357 ;;"^[ \t]*\\(format\\)[ \t]*\\([a-zA-Z0-9_]+\\)?[ \t]*=[ \t]*$"
2358 (setq b (point)
2359 name (if (match-beginning 8) ; 7 + 1
2360 (buffer-substring (match-beginning 8) ; 7 + 1
2361 (match-end 8)) ; 7 + 1
2362 ""))
2363 (setq argument nil)
2364 (if cperl-pod-here-fontify
2365 (while (and (eq (forward-line) 0)
2366 (not (looking-at "^[.;]$")))
2367 (cond
2368 ((looking-at "^#")) ; Skip comments
2369 ((and argument ; Skip argument multi-lines
2370 (looking-at "^[ \t]*{"))
2371 (forward-sexp 1)
2372 (setq argument nil))
2373 (argument ; Skip argument lines
2374 (setq argument nil))
2375 (t ; Format line
2376 (setq b1 (point))
2377 (setq argument (looking-at "^[^\n]*[@^]"))
2378 (end-of-line)
2379 (put-text-property b1 (point)
2380 'face font-lock-string-face)
2381 (cperl-commentify b1 (point) nil)
2382 (cperl-put-do-not-fontify b1 (point)))))
2383 (re-search-forward (concat "^[.;]$") max 'toend))
2384 (beginning-of-line)
2385 (if (looking-at "^[.;]$")
2386 (progn
2387 (put-text-property (point) (+ (point) 2)
2388 'face font-lock-string-face)
2389 (cperl-commentify (point) (+ (point) 2) nil)
2390 (cperl-put-do-not-fontify (point) (+ (point) 2)))
2391 (message "End of format `%s' not found." name)
2392 (or (car err-l) (setcar err-l b)))
2393 (forward-line)
2394 (put-text-property b (point) 'syntax-type 'format)
2395;;; (cond ((re-search-forward (concat "^[.;]$") max 'toend)
2396;;; (if cperl-pod-here-fontify
2397;;; (progn
2398;;; (put-text-property b (match-end 0)
2399;;; 'face font-lock-string-face)
2400;;; (cperl-put-do-not-fontify b (match-end 0))))
2401;;; (put-text-property b (match-end 0)
2402;;; 'syntax-type 'format)
2403;;; (cperl-put-do-not-fontify b (match-beginning 0)))
2404;;; (t (message "End of format `%s' not found." name)))
2405 )
2406 ;; Regexp:
2407 ((or (match-beginning 10) (match-beginning 11))
2408 ;; 1+6+2=9 extra () before this:
2409 ;; "\\<\\(q[wxq]?\\|[msy]\\|tr\\)\\>"
2410 ;; "\\|"
2411 ;; "\\([?/]\\)" ; /blah/ or ?blah?
2412 (setq b1 (if (match-beginning 10) 10 11)
2413 argument (buffer-substring
2414 (match-beginning b1) (match-end b1))
2415 b (point)
2416 i b
2417 c (char-after (match-beginning b1))
2418 bb (char-after (1- (match-beginning b1))) ; tmp holder
2419 bb (and ; user variables/whatever
2420 (match-beginning 10)
2421 (or
2422 (memq bb '(?\$ ?\@ ?\% ?\* ?\#)) ; $#y
2423 (and (eq bb ?-) (eq c ?s)) ; -s file test
2424 (and (eq bb ?\&) ; &&m/blah/
2425 (not (eq (char-after
2426 (- (match-beginning b1) 2))
2427 ?\&))))))
2428 (or bb
2429 (if (eq b1 11) ; bare /blah/ or ?blah?
2430 (setq argument ""
2431 bb ; Not a regexp?
2432 (progn
2433 (goto-char (match-beginning b1))
2434 (cperl-backward-to-noncomment (point-min))
2435 (not
2436 ;; What is below: regexp-p?
2437 (and
2438 (or (memq (preceding-char)
2439 (append (if (eq c ?\?)
2440 ;; $a++ ? 1 : 2
2441 "~{(=|&*!,;"
2442 "~{(=|&+-*!,;") nil))
2443 (and (eq (preceding-char) ?\})
2444 (cperl-after-block-p (point-min)))
2445 (and (eq (char-syntax (preceding-char)) ?w)
2446 (progn
2447 (forward-sexp -1)
2448 (looking-at
2449 "\\(while\\|if\\|unless\\|until\\|and\\|or\\|not\\|xor\\|split\\|grep\\|map\\|print\\)\\>")))
2450 (and (eq (preceding-char) ?.)
2451 (eq (char-after (- (point) 2)) ?.))
2452 (bobp))
2453 ;; m|blah| ? foo : bar;
2454 (not
2455 (and (eq c ?\?)
2456 cperl-use-syntax-table-text-property
2457 (not (bobp))
2458 (progn
2459 (forward-char -1)
2460 (looking-at "\\s|")))))))
2461 b (1- b))))
2462 (or bb (setq state (parse-partial-sexp
2463 state-point b nil nil state)
2464 state-point b))
2465 (goto-char b)
2466 (if (or bb (nth 3 state) (nth 4 state))
2467 (goto-char i)
2468 (if (looking-at "[ \t\n\f]+\\(#[^\n]*\n[ \t\n\f]*\\)+")
2469 (goto-char (match-end 0))
2470 (skip-chars-forward " \t\n\f"))
2471 ;; qtag means two-arg matcher, may be reset to
2472 ;; 2 or 3 later if some special quoting is needed.
2473 ;; e1 means matching-char matcher.
2474 (setq b (point)
2475 i (cperl-forward-re max end
2476 (string-match "^\\([sy]\\|tr\\)$" argument)
2477 t st-l err-l argument)
2478 i2 (nth 1 i) ; start of the second part
2479 e1 (nth 2 i) ; ender, true if matching second part
2480 go (nth 4 i) ; There is a 1-char part after the end
2481 i (car i) ; intermediate point
2482 tail (if (and i (not e1)) (1- (point)))
2483 e nil) ; need to preserve backslashitis
2484 ;; Commenting \\ is dangerous, what about ( ?
2485 (and i tail
2486 (eq (char-after i) ?\\)
2487 (setq e t))
2488 (if (null i)
2489 (progn
2490 (cperl-commentify b (point) t)
2491 (if go (forward-char 1)))
2492 (cperl-commentify b i t)
2493 (if (looking-at "\\sw*e") ; s///e
2494 (progn
2495 (and
2496 ;; silent:
2497 (cperl-find-pods-heres i2 (1- (point)) t end)
2498 ;; Error
2499 (goto-char (1+ max)))
2500 (if (and e1 (eq (preceding-char) ?\>))
2501 (progn
2502 (cperl-modify-syntax-type (1- (point)) cperl-st-ket)
2503 (cperl-modify-syntax-type i cperl-st-bra))))
2504 (cperl-commentify i2 (point) t)
2505 (if e
2506 (cperl-modify-syntax-type (1+ i) cperl-st-punct))
2507 (setq tail nil)))
2508 (if (eq (char-syntax (following-char)) ?w)
2509 (progn
2510 (forward-word 1) ; skip modifiers s///s
2511 (if tail (cperl-commentify tail (point) t))))))
2512 ((match-beginning 13) ; sub with prototypes
2513 (setq b (match-beginning 0))
2514 (if (memq (char-after (1- b))
2515 '(?\$ ?\@ ?\% ?\& ?\*))
2516 nil
2517 (setq state (parse-partial-sexp
2518 state-point (1- b) nil nil state)
2519 state-point (1- b))
2520 (if (or (nth 3 state) (nth 4 state))
2521 nil
2522 ;; Mark as string
2523 (cperl-commentify (match-beginning 13) (match-end 13) t))
2524 (goto-char (match-end 0))))
2525 ;; 1+6+2+1+1+2=13 extra () before this:
2526 ;; "\\$\\(['{]\\)"
2527 ((and (match-beginning 14)
2528 (eq (preceding-char) ?\')) ; $'
2529 (setq b (1- (point))
2530 state (parse-partial-sexp
2531 state-point (1- b) nil nil state)
2532 state-point (1- b))
2533 (if (nth 3 state) ; in string
2534 (cperl-modify-syntax-type (1- b) cperl-st-punct))
2535 (goto-char (1+ b)))
2536 ;; 1+6+2+1+1+2=13 extra () before this:
2537 ;; "\\$\\(['{]\\)"
2538 ((match-beginning 14) ; ${
2539 (setq bb (match-beginning 0))
2540 (cperl-modify-syntax-type bb cperl-st-punct))
2541 ;; 1+6+2+1+1+2+1=14 extra () before this:
2542 ;; "\\(\\<sub[ \t\n\f]+\\|[&*$@%]\\)[a-zA-Z0-9_]*'")
2543 ((match-beginning 15) ; old $abc'efg syntax
2544 (setq bb (match-end 0)
2545 b (match-beginning 0)
2546 state (parse-partial-sexp
2547 state-point b nil nil state)
2548 state-point b)
2549 (if (nth 3 state) ; in string
2550 nil
2551 (put-text-property (1- bb) bb 'syntax-table cperl-st-word))
2552 (goto-char bb))
2553 ;; 1+6+2+1+1+2+1+1=15 extra () before this:
2554 ;; "__\\(END\\|DATA\\)__"
2555 (t ; __END__, __DATA__
2556 (setq bb (match-end 0)
2557 b (match-beginning 0)
2558 state (parse-partial-sexp
2559 state-point b nil nil state)
2560 state-point b)
2561 (if (or (nth 3 state) (nth 4 state))
2562 nil
2563 ;; (put-text-property b (1+ bb) 'syntax-type 'pod) ; Cheat
2564 (cperl-commentify b bb nil)
2565 (setq end t))
2566 (goto-char bb)))
2567 (if (> (point) max)
2568 (progn
2569 (if end
2570 (message "Garbage after __END__/__DATA__ ignored")
2571 (message "Unbalanced syntax found while scanning")
2572 (or (car err-l) (setcar err-l b)))
2573 (goto-char max))))
2574;;; (while (re-search-forward "\\(\\`\n?\\|\n\n\\)=" max t)
2575;;; (if (looking-at "\n*cut\\>")
2576;;; (progn
2577;;; (message "=cut is not preceded by a pod section")
2578;;; (setq err (point)))
2579;;; (beginning-of-line)
2580
2581;;; (setq b (point) bb b)
2582;;; (or (re-search-forward "\n\n=cut\\>" max 'toend)
2583;;; (message "Cannot find the end of a pod section"))
2584;;; (beginning-of-line 3)
2585;;; (setq e (point))
2586;;; (put-text-property b e 'in-pod t)
2587;;; (goto-char b)
2588;;; (while (re-search-forward "\n\n[ \t]" e t)
2589;;; (beginning-of-line)
2590;;; (put-text-property b (point) 'syntax-type 'pod)
2591;;; (cperl-put-do-not-fontify b (point))
2592;;; ;;(put-text-property (max (point-min) (1- b))
2593;;; ;; (point) cperl-do-not-fontify t)
2594;;; (if cperl-pod-here-fontify (put-text-property b (point) 'face face))
2595;;; (re-search-forward "\n\n[^ \t\f\n]" e 'toend)
2596;;; (beginning-of-line)
2597;;; (setq b (point)))
2598;;; (put-text-property (point) e 'syntax-type 'pod)
2599;;; (cperl-put-do-not-fontify (point) e)
2600;;; ;;(put-text-property (max (point-min) (1- (point)))
2601;;; ;; e cperl-do-not-fontify t)
2602;;; (if cperl-pod-here-fontify
2603;;; (progn (put-text-property (point) e 'face face)
2604;;; (goto-char bb)
2605;;; (if (looking-at
2606;;; "=[a-zA-Z0-9]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$")
2607;;; (put-text-property
2608;;; (match-beginning 1) (match-end 1)
2609;;; 'face head-face))
2610;;; (while (re-search-forward
2611;;; ;; One paragraph
2612;;; "\n\n=[a-zA-Z0-9]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$"
2613;;; e 'toend)
2614;;; (put-text-property
2615;;; (match-beginning 1) (match-end 1)
2616;;; 'face head-face))))
2617;;; (goto-char e)))
2618;;; (goto-char min)
2619;;; (while (re-search-forward
2620;;; ;; We exclude \n to avoid misrecognition inside quotes.
2621;;; "<<\\(\\([\"'`]\\)\\([^\"'`\n]*\\)\\2\\|\\(\\([a-zA-Z_][a-zA-Z_0-9]*\\)?\\)\\)"
2622;;; max t)
2623;;; (if (match-beginning 4)
2624;;; (setq b1 (match-beginning 4)
2625;;; e1 (match-end 4))
2626;;; (setq b1 (match-beginning 3)
2627;;; e1 (match-end 3)))
2628;;; (setq tag (buffer-substring b1 e1)
2629;;; qtag (regexp-quote tag))
2630;;; (cond (cperl-pod-here-fontify
2631;;; (put-text-property b1 e1 'face font-lock-reference-face)
2632;;; (cperl-put-do-not-fontify b1 e1)))
2633;;; (forward-line)
2634;;; (setq b (point))
2635;;; (cond ((re-search-forward (concat "^" qtag "$") max 'toend)
2636;;; (if cperl-pod-here-fontify
2637;;; (progn
2638;;; (put-text-property (match-beginning 0) (match-end 0)
2639;;; 'face font-lock-reference-face)
2640;;; (cperl-put-do-not-fontify b (match-end 0))
2641;;; ;;(put-text-property (max (point-min) (1- b))
2642;;; ;; (min (point-max)
2643;;; ;; (1+ (match-end 0)))
2644;;; ;; cperl-do-not-fontify t)
2645;;; (put-text-property b (match-beginning 0)
2646;;; 'face here-face)))
2647;;; (put-text-property b (match-beginning 0)
2648;;; 'syntax-type 'here-doc)
2649;;; (cperl-put-do-not-fontify b (match-beginning 0)))
2650;;; (t (message "End of here-document `%s' not found." tag))))
2651;;; (goto-char min)
2652;;; (while (re-search-forward
2653;;; "^[ \t]*format[ \t]*\\(\\([a-zA-Z0-9_]+[ \t]*\\)?\\)=[ \t]*$"
2654;;; max t)
2655;;; (setq b (point)
2656;;; name (buffer-substring (match-beginning 1)
2657;;; (match-end 1)))
2658;;; (cond ((re-search-forward (concat "^[.;]$") max 'toend)
2659;;; (if cperl-pod-here-fontify
2660;;; (progn
2661;;; (put-text-property b (match-end 0)
2662;;; 'face font-lock-string-face)
2663;;; (cperl-put-do-not-fontify b (match-end 0))))
2664;;; (put-text-property b (match-end 0)
2665;;; 'syntax-type 'format)
2666;;; (cperl-put-do-not-fontify b (match-beginning 0)))
2667;;; (t (message "End of format `%s' not found." name))))
2668 )
2669 (if (car err-l) (goto-char (car err-l))
2670 (or noninteractive
2671 (message "Scan for \"hard\" Perl constructions completed."))))
2672 (and (buffer-modified-p)
2673 (not modified)
2674 (set-buffer-modified-p nil))
2675 (set-syntax-table cperl-mode-syntax-table))
2676 (car err-l)))
2677
2678(defun cperl-backward-to-noncomment (lim)
2679 ;; Stops at lim or after non-whitespace that is not in comment
2680 (let (stop p)
2681 (while (and (not stop) (> (point) (or lim 1)))
2682 (skip-chars-backward " \t\n\f" lim)
2683 (setq p (point))
2684 (beginning-of-line)
2685 (if (or (looking-at "^[ \t]*\\(#\\|$\\)")
2686 (progn (cperl-to-comment-or-eol) (bolp)))
2687 nil ; Only comment, skip
2688 ;; Else
2689 (skip-chars-backward " \t")
2690 (if (< p (point)) (goto-char p))
2691 (setq stop t)))))
2692
2693(defun cperl-after-block-p (lim)
2694 ;; We suppose that the preceding char is }.
2695 (save-excursion
2696 (condition-case nil
2697 (progn
2698 (forward-sexp -1)
2699 (cperl-backward-to-noncomment lim)
2700 (or (eq (preceding-char) ?\) ) ; if () {}
2701 (and (eq (char-syntax (preceding-char)) ?w) ; else {}
2702 (progn
2703 (forward-sexp -1)
2704 (looking-at "\\(else\\|grep\\|map\\)\\>")))
2705 (cperl-after-expr-p lim)))
2706 (error nil))))
2707
2708(defun cperl-after-expr-p (&optional lim chars test)
2709 "Returns true if the position is good for start of expression.
2710TEST is the expression to evaluate at the found position. If absent,
2711CHARS is a string that contains good characters to have before us (however,
2712`}' is treated \"smartly\" if it is not in the list)."
2713 (let (stop p
2714 (lim (or lim (point-min))))
2715 (save-excursion
2716 (while (and (not stop) (> (point) lim))
2717 (skip-chars-backward " \t\n\f" lim)
2718 (setq p (point))
2719 (beginning-of-line)
2720 (if (looking-at "^[ \t]*\\(#\\|$\\)") nil ; Only comment, skip
2721 ;; Else: last iteration (What to do with labels?)
2722 (cperl-to-comment-or-eol)
2723 (skip-chars-backward " \t")
2724 (if (< p (point)) (goto-char p))
2725 (setq stop t)))
2726 (or (bobp)
2727 (progn
2728 (if test (eval test)
2729 (or (memq (preceding-char) (append (or chars "{;") nil))
2730 (and (eq (preceding-char) ?\})
2731 (cperl-after-block-p lim)))))))))
2732
2733(defun cperl-backward-to-start-of-continued-exp (lim)
2734 (if (memq (preceding-char) (append ")]}\"'`" nil))
2735 (forward-sexp -1))
2736 (beginning-of-line)
2737 (if (<= (point) lim)
2738 (goto-char (1+ lim)))
2739 (skip-chars-forward " \t"))
2740
2741
2742(defvar innerloop-done nil)
2743(defvar last-depth nil)
2744
2745(defun cperl-indent-exp ()
2746 "Simple variant of indentation of continued-sexp.
2747Should be slow. Will not indent comment if it starts at `comment-indent'
2748or looks like continuation of the comment on the previous line."
2749 (interactive)
2750 (save-excursion
2751 (let ((tmp-end (progn (end-of-line) (point))) top done)
2752 (save-excursion
2753 (beginning-of-line)
2754 (while (null done)
2755 (setq top (point))
2756 (while (= (nth 0 (parse-partial-sexp (point) tmp-end
2757 -1)) -1)
2758 (setq top (point))) ; Get the outermost parenths in line
2759 (goto-char top)
2760 (while (< (point) tmp-end)
2761 (parse-partial-sexp (point) tmp-end nil t) ; To start-sexp or eol
2762 (or (eolp) (forward-sexp 1)))
2763 (if (> (point) tmp-end) (progn (end-of-line) (setq tmp-end (point)))
2764 (setq done t)))
2765 (goto-char tmp-end)
2766 (setq tmp-end (point-marker)))
2767 (cperl-indent-region (point) tmp-end))))
2768
2769(defun cperl-indent-region (start end)
2770 "Simple variant of indentation of region in CPerl mode.
2771Should be slow. Will not indent comment if it starts at `comment-indent'
2772or looks like continuation of the comment on the previous line.
2773Indents all the lines whose first character is between START and END
2774inclusive."
2775 (interactive "r")
2776 (save-excursion
2777 (let (st comm indent-info old-comm-indent new-comm-indent
2778 (pm 0) (imenu-scanning-message "Indenting... (%3d%%)"))
2779 (goto-char start)
2780 (setq old-comm-indent (and (cperl-to-comment-or-eol)
2781 (current-column))
2782 new-comm-indent old-comm-indent)
2783 (goto-char start)
2784 (or (bolp) (beginning-of-line 2))
2785 (or (fboundp 'imenu-progress-message)
2786 (message "Indenting... For feedback load `imenu'..."))
2787 (while (and (<= (point) end) (not (eobp))) ; bol to check start
2788 (and (fboundp 'imenu-progress-message)
2789 (imenu-progress-message
2790 pm (/ (* 100 (- (point) start)) (- end start -1))))
2791 (setq st (point)
2792 indent-info nil
2793 ) ; Believe indentation of the current
2794 (if (and (setq comm (looking-at "[ \t]*#"))
2795 (or (eq (current-indentation) (or old-comm-indent
2796 comment-column))
2797 (setq old-comm-indent nil)))
2798 (if (and old-comm-indent
2799 (= (current-indentation) old-comm-indent)
2800 (not (eq (get-text-property (point) 'syntax-type) 'pod)))
2801 (let ((comment-column new-comm-indent))
2802 (indent-for-comment)))
2803 (progn
2804 (cperl-indent-line 'indent-info)
2805 (or comm
2806 (progn
2807 (if (setq old-comm-indent
2808 (and (cperl-to-comment-or-eol)
2809 (not (memq (get-text-property (point)
2810 'syntax-type)
2811 '(pod here-doc)))
2812 (current-column)))
2813 (progn (indent-for-comment)
2814 (skip-chars-backward " \t")
2815 (skip-chars-backward "#")
2816 (setq new-comm-indent (current-column))))))))
2817 (beginning-of-line 2))
2818 (if (fboundp 'imenu-progress-message)
2819 (imenu-progress-message pm 100)
2820 (message nil)))))
2821
2822;;(defun cperl-slash-is-regexp (&optional pos)
2823;; (save-excursion
2824;; (goto-char (if pos pos (1- (point))))
2825;; (and
2826;; (not (memq (get-text-property (point) 'face)
2827;; '(font-lock-string-face font-lock-comment-face)))
2828;; (cperl-after-expr-p nil nil '
2829;; (or (looking-at "[^]a-zA-Z0-9_)}]")
2830;; (eq (get-text-property (point) 'face)
2831;; 'font-lock-keyword-face))))))
2832
2833;; Stolen from lisp-mode with a lot of improvements
2834
2835(defun cperl-fill-paragraph (&optional justify iteration)
2836 "Like \\[fill-paragraph], but handle CPerl comments.
2837If any of the current line is a comment, fill the comment or the
2838block of it that point is in, preserving the comment's initial
2839indentation and initial hashes. Behaves usually outside of comment."
2840 (interactive "P")
2841 (let (
2842 ;; Non-nil if the current line contains a comment.
2843 has-comment
2844
2845 ;; If has-comment, the appropriate fill-prefix for the comment.
2846 comment-fill-prefix
2847 ;; Line that contains code and comment (or nil)
2848 start
2849 c spaces len dc (comment-column comment-column))
2850 ;; Figure out what kind of comment we are looking at.
2851 (save-excursion
2852 (beginning-of-line)
2853 (cond
2854
2855 ;; A line with nothing but a comment on it?
2856 ((looking-at "[ \t]*#[# \t]*")
2857 (setq has-comment t
2858 comment-fill-prefix (buffer-substring (match-beginning 0)
2859 (match-end 0))))
2860
2861 ;; A line with some code, followed by a comment? Remember that the
2862 ;; semi which starts the comment shouldn't be part of a string or
2863 ;; character.
2864 ((cperl-to-comment-or-eol)
2865 (setq has-comment t)
2866 (looking-at "#+[ \t]*")
2867 (setq start (point) c (current-column)
2868 comment-fill-prefix
2869 (concat (make-string (current-column) ?\ )
2870 (buffer-substring (match-beginning 0) (match-end 0)))
2871 spaces (progn (skip-chars-backward " \t")
2872 (buffer-substring (point) start))
2873 dc (- c (current-column)) len (- start (point))
2874 start (point-marker))
2875 (delete-char len)
2876 (insert (make-string dc ?-)))))
2877 (if (not has-comment)
2878 (fill-paragraph justify) ; Do the usual thing outside of comment
2879 ;; Narrow to include only the comment, and then fill the region.
2880 (save-restriction
2881 (narrow-to-region
2882 ;; Find the first line we should include in the region to fill.
2883 (if start (progn (beginning-of-line) (point))
2884 (save-excursion
2885 (while (and (zerop (forward-line -1))
2886 (looking-at "^[ \t]*#+[ \t]*[^ \t\n#]")))
2887 ;; We may have gone to far. Go forward again.
2888 (or (looking-at "^[ \t]*#+[ \t]*[^ \t\n#]")
2889 (forward-line 1))
2890 (point)))
2891 ;; Find the beginning of the first line past the region to fill.
2892 (save-excursion
2893 (while (progn (forward-line 1)
2894 (looking-at "^[ \t]*#+[ \t]*[^ \t\n#]")))
2895 (point)))
2896 ;; Remove existing hashes
2897 (goto-char (point-min))
2898 (while (progn (forward-line 1) (< (point) (point-max)))
2899 (skip-chars-forward " \t")
2900 (and (looking-at "#+")
2901 (delete-char (- (match-end 0) (match-beginning 0)))))
2902
2903 ;; Lines with only hashes on them can be paragraph boundaries.
2904 (let ((paragraph-start (concat paragraph-start "\\|^[ \t#]*$"))
2905 (paragraph-separate (concat paragraph-start "\\|^[ \t#]*$"))
2906 (fill-prefix comment-fill-prefix))
2907 (fill-paragraph justify)))
2908 (if (and start)
2909 (progn
2910 (goto-char start)
2911 (if (> dc 0)
2912 (progn (delete-char dc) (insert spaces)))
2913 (if (or (= (current-column) c) iteration) nil
2914 (setq comment-column c)
2915 (indent-for-comment)
2916 ;; Repeat once more, flagging as iteration
2917 (cperl-fill-paragraph justify t)))))))
2918
2919(defun cperl-do-auto-fill ()
2920 ;; Break out if the line is short enough
2921 (if (> (save-excursion
2922 (end-of-line)
2923 (current-column))
2924 fill-column)
2925 (let ((c (save-excursion (beginning-of-line)
2926 (cperl-to-comment-or-eol) (point)))
2927 (s (memq (following-char) '(?\ ?\t))) marker)
2928 (if (>= c (point)) nil
2929 (setq marker (point-marker))
2930 (cperl-fill-paragraph)
2931 (goto-char marker)
2932 ;; Is not enough, sometimes marker is a start of line
2933 (if (bolp) (progn (re-search-forward "#+[ \t]*")
2934 (goto-char (match-end 0))))
2935 ;; Following space could have gone:
2936 (if (or (not s) (memq (following-char) '(?\ ?\t))) nil
2937 (insert " ")
2938 (backward-char 1))
2939 ;; Previous space could have gone:
2940 (or (memq (preceding-char) '(?\ ?\t)) (insert " "))))))
2941
2942(defvar imenu-example--function-name-regexp-perl
2943 (concat
2944 "^\\("
2945 "[ \t]*\\(sub\\|package\\)[ \t\n]+\\([a-zA-Z_0-9:']+\\)[ \t]*\\(([^()]*)[ \t]*\\)?"
2946 "\\|"
2947 "=head\\([12]\\)[ \t]+\\([^\n]+\\)$"
2948 "\\)"))
2949
2950(defun cperl-imenu-addback (lst &optional isback name)
2951 ;; We suppose that the lst is a DAG, unless the first element only
2952 ;; loops back, and ISBACK is set. Thus this function cannot be
2953 ;; applied twice without ISBACK set.
2954 (cond ((not cperl-imenu-addback) lst)
2955 (t
2956 (or name
2957 (setq name "+++BACK+++"))
2958 (mapcar (function (lambda (elt)
2959 (if (and (listp elt) (listp (cdr elt)))
2960 (progn
2961 ;; In the other order it goes up
2962 ;; one level only ;-(
2963 (setcdr elt (cons (cons name lst)
2964 (cdr elt)))
2965 (cperl-imenu-addback (cdr elt) t name)
2966 ))))
2967 (if isback (cdr lst) lst))
2968 lst)))
2969
2970(defun imenu-example--create-perl-index (&optional regexp)
2971 (require 'cl)
2972 (require 'imenu) ; May be called from TAGS creator
2973 (let ((index-alist '()) (index-pack-alist '()) (index-pod-alist '())
2974 (index-unsorted-alist '()) (i-s-f (default-value 'imenu-sort-function))
2975 (index-meth-alist '()) meth
2976 packages ends-ranges p
2977 (prev-pos 0) char fchar index index1 name (end-range 0) package)
2978 (goto-char (point-min))
2979 (if noninteractive
2980 (message "Scanning Perl for index")
2981 (imenu-progress-message prev-pos 0))
2982 ;; Search for the function
2983 (progn ;;save-match-data
2984 (while (re-search-forward
2985 (or regexp imenu-example--function-name-regexp-perl)
2986 nil t)
2987 (or noninteractive
2988 (imenu-progress-message prev-pos))
2989 ;;(backward-up-list 1)
2990 (cond
2991 ((and ; Skip some noise if building tags
2992 (match-beginning 2) ; package or sub
2993 (eq (char-after (match-beginning 2)) ?p) ; package
2994 (not (save-match-data
2995 (looking-at "[ \t\n]*;")))) ; Plain text word 'package'
2996 nil)
2997 ((and
2998 (match-beginning 2) ; package or sub
2999 ;; Skip if quoted (will not skip multi-line ''-comments :-():
3000 (null (get-text-property (match-beginning 1) 'syntax-table))
3001 (null (get-text-property (match-beginning 1) 'syntax-type))
3002 (null (get-text-property (match-beginning 1) 'in-pod)))
3003 (save-excursion
3004 (goto-char (match-beginning 2))
3005 (setq fchar (following-char))
3006 )
3007 ;; (if (looking-at "([^()]*)[ \t\n\f]*")
3008 ;; (goto-char (match-end 0))) ; Messes what follows
3009 (setq char (following-char)
3010 meth nil
3011 p (point))
3012 (while (and ends-ranges (>= p (car ends-ranges)))
3013 ;; delete obsolete entries
3014 (setq ends-ranges (cdr ends-ranges) packages (cdr packages)))
3015 (setq package (or (car packages) "")
3016 end-range (or (car ends-ranges) 0))
3017 (if (eq fchar ?p)
3018 (setq name (buffer-substring (match-beginning 3) (match-end 3))
3019 name (progn
3020 (set-text-properties 0 (length name) nil name)
3021 name)
3022 package (concat name "::")
3023 name (concat "package " name)
3024 end-range
3025 (save-excursion
3026 (parse-partial-sexp (point) (point-max) -1) (point))
3027 ends-ranges (cons end-range ends-ranges)
3028 packages (cons package packages)))
3029 ;; )
3030 ;; Skip this function name if it is a prototype declaration.
3031 (if (and (eq fchar ?s) (eq char ?\;)) nil
3032 (setq index (imenu-example--name-and-position))
3033 (if (eq fchar ?p) nil
3034 (setq name (buffer-substring (match-beginning 3) (match-end 3)))
3035 (set-text-properties 0 (length name) nil name)
3036 (cond ((string-match "[:']" name)
3037 (setq meth t))
3038 ((> p end-range) nil)
3039 (t
3040 (setq name (concat package name) meth t))))
3041 (setcar index name)
3042 (if (eq fchar ?p)
3043 (push index index-pack-alist)
3044 (push index index-alist))
3045 (if meth (push index index-meth-alist))
3046 (push index index-unsorted-alist)))
3047 ((match-beginning 5) ; Pod section
3048 ;; (beginning-of-line)
3049 (setq index (imenu-example--name-and-position)
3050 name (buffer-substring (match-beginning 6) (match-end 6)))
3051 (set-text-properties 0 (length name) nil name)
3052 (if (eq (char-after (match-beginning 5)) ?2)
3053 (setq name (concat " " name)))
3054 (setcar index name)
3055 (setq index1 (cons (concat "=" name) (cdr index)))
3056 (push index index-pod-alist)
3057 (push index1 index-unsorted-alist)))))
3058 (or noninteractive
3059 (imenu-progress-message prev-pos 100))
3060 (setq index-alist
3061 (if (default-value 'imenu-sort-function)
3062 (sort index-alist (default-value 'imenu-sort-function))
3063 (nreverse index-alist)))
3064 (and index-pod-alist
3065 (push (cons "+POD headers+..."
3066 (nreverse index-pod-alist))
3067 index-alist))
3068 (and (or index-pack-alist index-meth-alist)
3069 (let ((lst index-pack-alist) hier-list pack elt group name)
3070 ;; Remove "package ", reverse and uniquify.
3071 (while lst
3072 (setq elt (car lst) lst (cdr lst) name (substring (car elt) 8))
3073 (if (assoc name hier-list) nil
3074 (setq hier-list (cons (cons name (cdr elt)) hier-list))))
3075 (setq lst index-meth-alist)
3076 (while lst
3077 (setq elt (car lst) lst (cdr lst))
3078 (cond ((string-match "\\(::\\|'\\)[_a-zA-Z0-9]+$" (car elt))
3079 (setq pack (substring (car elt) 0 (match-beginning 0)))
3080 (if (setq group (assoc pack hier-list))
3081 (if (listp (cdr group))
3082 ;; Have some functions already
3083 (setcdr group
3084 (cons (cons (substring
3085 (car elt)
3086 (+ 2 (match-beginning 0)))
3087 (cdr elt))
3088 (cdr group)))
3089 (setcdr group (list (cons (substring
3090 (car elt)
3091 (+ 2 (match-beginning 0)))
3092 (cdr elt)))))
3093 (setq hier-list
3094 (cons (cons pack
3095 (list (cons (substring
3096 (car elt)
3097 (+ 2 (match-beginning 0)))
3098 (cdr elt))))
3099 hier-list))))))
3100 (push (cons "+Hierarchy+..."
3101 hier-list)
3102 index-alist)))
3103 (and index-pack-alist
3104 (push (cons "+Packages+..."
3105 (nreverse index-pack-alist))
3106 index-alist))
3107 (and (or index-pack-alist index-pod-alist
3108 (default-value 'imenu-sort-function))
3109 index-unsorted-alist
3110 (push (cons "+Unsorted List+..."
3111 (nreverse index-unsorted-alist))
3112 index-alist))
3113 (cperl-imenu-addback index-alist)))
3114
3115(defvar cperl-compilation-error-regexp-alist
3116 ;; This look like a paranoiac regexp: could anybody find a better one? (which WORK).
3117 '(("^[^\n]* \\(file\\|at\\) \\([^ \t\n]+\\) [^\n]*line \\([0-9]+\\)[\\., \n]"
3118 2 3))
3119 "Alist that specifies how to match errors in perl output.")
3120
3121(if (fboundp 'eval-after-load)
3122 (eval-after-load
3123 "mode-compile"
3124 '(setq perl-compilation-error-regexp-alist
3125 cperl-compilation-error-regexp-alist)))
3126
3127
3128(defvar cperl-faces-init nil)
3129
3130(defun cperl-windowed-init ()
3131 "Initialization under windowed version."
3132 (add-hook 'font-lock-mode-hook
3133 (function
3134 (lambda ()
3135 (if (or
3136 (eq major-mode 'perl-mode)
3137 (eq major-mode 'cperl-mode))
3138 (progn
3139 (or cperl-faces-init (cperl-init-faces))))))))
3140
3141(defvar perl-font-lock-keywords-1 nil
3142 "Additional expressions to highlight in Perl mode. Minimal set.")
3143(defvar perl-font-lock-keywords nil
3144 "Additional expressions to highlight in Perl mode. Default set.")
3145(defvar perl-font-lock-keywords-2 nil
3146 "Additional expressions to highlight in Perl mode. Maximal set")
3147
3148(defun cperl-init-faces ()
3149 (condition-case nil
3150 (progn
3151 (require 'font-lock)
3152 (and (fboundp 'font-lock-fontify-anchored-keywords)
3153 (featurep 'font-lock-extra)
3154 (message "You have an obsolete package `font-lock-extra'. Install `choose-color'."))
3155 (let (t-font-lock-keywords t-font-lock-keywords-1 font-lock-anchored)
3156 ;;(defvar cperl-font-lock-enhanced nil
3157 ;; "Set to be non-nil if font-lock allows active highlights.")
3158 (if (fboundp 'font-lock-fontify-anchored-keywords)
3159 (setq font-lock-anchored t))
3160 (setq
3161 t-font-lock-keywords
3162 (list
3163 (cons
3164 (concat
3165 "\\(^\\|[^$@%&\\]\\)\\<\\("
3166 (mapconcat
3167 'identity
3168 '("if" "until" "while" "elsif" "else" "unless" "for"
3169 "foreach" "continue" "exit" "die" "last" "goto" "next"
3170 "redo" "return" "local" "exec" "sub" "do" "dump" "use"
3171 "require" "package" "eval" "my" "BEGIN" "END")
3172 "\\|") ; Flow control
3173 "\\)\\>") 2) ; was "\\)[ \n\t;():,\|&]"
3174 ; In what follows we use `type' style
3175 ; for overwritable builtins
3176 (list
3177 (concat
3178 "\\(^\\|[^$@%&\\]\\)\\<\\("
3179 ;; "CORE" "__FILE__" "__LINE__" "abs" "accept" "alarm"
3180 ;; "and" "atan2" "bind" "binmode" "bless" "caller"
3181 ;; "chdir" "chmod" "chown" "chr" "chroot" "close"
3182 ;; "closedir" "cmp" "connect" "continue" "cos" "crypt"
3183 ;; "dbmclose" "dbmopen" "die" "dump" "endgrent"
3184 ;; "endhostent" "endnetent" "endprotoent" "endpwent"
3185 ;; "endservent" "eof" "eq" "exec" "exit" "exp" "fcntl"
3186 ;; "fileno" "flock" "fork" "formline" "ge" "getc"
3187 ;; "getgrent" "getgrgid" "getgrnam" "gethostbyaddr"
3188 ;; "gethostbyname" "gethostent" "getlogin"
3189 ;; "getnetbyaddr" "getnetbyname" "getnetent"
3190 ;; "getpeername" "getpgrp" "getppid" "getpriority"
3191 ;; "getprotobyname" "getprotobynumber" "getprotoent"
3192 ;; "getpwent" "getpwnam" "getpwuid" "getservbyname"
3193 ;; "getservbyport" "getservent" "getsockname"
3194 ;; "getsockopt" "glob" "gmtime" "gt" "hex" "index" "int"
3195 ;; "ioctl" "join" "kill" "lc" "lcfirst" "le" "length"
3196 ;; "link" "listen" "localtime" "log" "lstat" "lt"
3197 ;; "mkdir" "msgctl" "msgget" "msgrcv" "msgsnd" "ne"
3198 ;; "not" "oct" "open" "opendir" "or" "ord" "pack" "pipe"
3199 ;; "quotemeta" "rand" "read" "readdir" "readline"
3200 ;; "readlink" "readpipe" "recv" "ref" "rename" "require"
3201 ;; "reset" "reverse" "rewinddir" "rindex" "rmdir" "seek"
3202 ;; "seekdir" "select" "semctl" "semget" "semop" "send"
3203 ;; "setgrent" "sethostent" "setnetent" "setpgrp"
3204 ;; "setpriority" "setprotoent" "setpwent" "setservent"
3205 ;; "setsockopt" "shmctl" "shmget" "shmread" "shmwrite"
3206 ;; "shutdown" "sin" "sleep" "socket" "socketpair"
3207 ;; "sprintf" "sqrt" "srand" "stat" "substr" "symlink"
3208 ;; "syscall" "sysread" "system" "syswrite" "tell"
3209 ;; "telldir" "time" "times" "truncate" "uc" "ucfirst"
3210 ;; "umask" "unlink" "unpack" "utime" "values" "vec"
3211 ;; "wait" "waitpid" "wantarray" "warn" "write" "x" "xor"
3212 "a\\(bs\\|ccept\\|tan2\\|larm\\|nd\\)\\|"
3213 "b\\(in\\(d\\|mode\\)\\|less\\)\\|"
3214 "c\\(h\\(r\\(\\|oot\\)\\|dir\\|mod\\|own\\)\\|aller\\|rypt\\|"
3215 "lose\\(\\|dir\\)\\|mp\\|o\\(s\\|n\\(tinue\\|nect\\)\\)\\)\\|"
3216 "CORE\\|d\\(ie\\|bm\\(close\\|open\\)\\|ump\\)\\|"
3217 "e\\(x\\(p\\|it\\|ec\\)\\|q\\|nd\\(p\\(rotoent\\|went\\)\\|"
3218 "hostent\\|servent\\|netent\\|grent\\)\\|of\\)\\|"
3219 "f\\(ileno\\|cntl\\|lock\\|or\\(k\\|mline\\)\\)\\|"
3220 "g\\(t\\|lob\\|mtime\\|e\\(\\|t\\(p\\(pid\\|r\\(iority\\|"
3221 "oto\\(byn\\(ame\\|umber\\)\\|ent\\)\\)\\|eername\\|w"
3222 "\\(uid\\|ent\\|nam\\)\\|grp\\)\\|host\\(by\\(addr\\|name\\)\\|"
3223 "ent\\)\\|s\\(erv\\(by\\(port\\|name\\)\\|ent\\)\\|"
3224 "ock\\(name\\|opt\\)\\)\\|c\\|login\\|net\\(by\\(addr\\|name\\)\\|"
3225 "ent\\)\\|gr\\(ent\\|nam\\|gid\\)\\)\\)\\)\\|"
3226 "hex\\|i\\(n\\(t\\|dex\\)\\|octl\\)\\|join\\|kill\\|"
3227 "l\\(i\\(sten\\|nk\\)\\|stat\\|c\\(\\|first\\)\\|t\\|e"
3228 "\\(\\|ngth\\)\\|o\\(caltime\\|g\\)\\)\\|m\\(sg\\(rcv\\|snd\\|"
3229 "ctl\\|get\\)\\|kdir\\)\\|n\\(e\\|ot\\)\\|o\\(pen\\(\\|dir\\)\\|"
3230 "r\\(\\|d\\)\\|ct\\)\\|p\\(ipe\\|ack\\)\\|quotemeta\\|"
3231 "r\\(index\\|and\\|mdir\\|e\\(quire\\|ad\\(pipe\\|\\|lin"
3232 "\\(k\\|e\\)\\|dir\\)\\|set\\|cv\\|verse\\|f\\|winddir\\|name"
3233 "\\)\\)\\|s\\(printf\\|qrt\\|rand\\|tat\\|ubstr\\|e\\(t\\(p\\(r"
3234 "\\(iority\\|otoent\\)\\|went\\|grp\\)\\|hostent\\|s\\(ervent\\|"
3235 "ockopt\\)\\|netent\\|grent\\)\\|ek\\(\\|dir\\)\\|lect\\|"
3236 "m\\(ctl\\|op\\|get\\)\\|nd\\)\\|h\\(utdown\\|m\\(read\\|ctl\\|"
3237 "write\\|get\\)\\)\\|y\\(s\\(read\\|call\\|tem\\|write\\)\\|"
3238 "mlink\\)\\|in\\|leep\\|ocket\\(pair\\|\\)\\)\\|t\\(runcate\\|"
3239 "ell\\(\\|dir\\)\\|ime\\(\\|s\\)\\)\\|u\\(c\\(\\|first\\)\\|"
3240 "time\\|mask\\|n\\(pack\\|link\\)\\)\\|v\\(alues\\|ec\\)\\|"
3241 "w\\(a\\(rn\\|it\\(pid\\|\\)\\|ntarray\\)\\|rite\\)\\|"
3242 "x\\(\\|or\\)\\|__\\(FILE__\\|LINE__\\|PACKAGE__\\)"
3243 "\\)\\>") 2 'font-lock-type-face)
3244 ;; In what follows we use `other' style
3245 ;; for nonoverwritable builtins
3246 ;; Somehow 's', 'm' are not auto-generated???
3247 (list
3248 (concat
3249 "\\(^\\|[^$@%&\\]\\)\\<\\("
3250 ;; "AUTOLOAD" "BEGIN" "DESTROY" "END" "__END__" "chomp"
3251 ;; "chop" "defined" "delete" "do" "each" "else" "elsif"
3252 ;; "eval" "exists" "for" "foreach" "format" "goto"
3253 ;; "grep" "if" "keys" "last" "local" "map" "my" "next"
3254 ;; "no" "package" "pop" "pos" "print" "printf" "push"
3255 ;; "q" "qq" "qw" "qx" "redo" "return" "scalar" "shift"
3256 ;; "sort" "splice" "split" "study" "sub" "tie" "tr"
3257 ;; "undef" "unless" "unshift" "untie" "until" "use"
3258 ;; "while" "y"
3259 "AUTOLOAD\\|BEGIN\\|cho\\(p\\|mp\\)\\|d\\(e\\(fined\\|lete\\)\\|"
3260 "o\\)\\|DESTROY\\|e\\(ach\\|val\\|xists\\|ls\\(e\\|if\\)\\)\\|"
3261 "END\\|for\\(\\|each\\|mat\\)\\|g\\(rep\\|oto\\)\\|if\\|keys\\|"
3262 "l\\(ast\\|ocal\\)\\|m\\(ap\\|y\\)\\|n\\(ext\\|o\\)\\|"
3263 "p\\(ackage\\|rint\\(\\|f\\)\\|ush\\|o\\(p\\|s\\)\\)\\|"
3264 "q\\(\\|q\\|w\\|x\\)\\|re\\(turn\\|do\\)\\|s\\(pli\\(ce\\|t\\)\\|"
3265 "calar\\|tudy\\|ub\\|hift\\|ort\\)\\|t\\(r\\|ie\\)\\|"
3266 "u\\(se\\|n\\(shift\\|ti\\(l\\|e\\)\\|def\\|less\\)\\)\\|"
3267 "while\\|y\\|__\\(END\\|DATA\\)__" ;__DATA__ added manually
3268 "\\|[sm]" ; Added manually
3269 "\\)\\>") 2 'font-lock-other-type-face)
3270 ;; (mapconcat 'identity
3271 ;; '("#endif" "#else" "#ifdef" "#ifndef" "#if"
3272 ;; "#include" "#define" "#undef")
3273 ;; "\\|")
3274 '("-[rwxoRWXOezsfdlpSbctugkTBMAC]\\>\\([ \t]+_\\>\\)?" 0
3275 font-lock-function-name-face keep) ; Not very good, triggers at "[a-z]"
3276 '("\\<sub[ \t]+\\([^ \t{;]+\\)[ \t]*\\(([^()]*)[ \t]*\\)?[#{\n]" 1
3277 font-lock-function-name-face)
3278 '("\\<\\(package\\|require\\|use\\|import\\|no\\|bootstrap\\)[ \t]+\\([a-zA-z_][a-zA-z_0-9:]*\\)[ \t;]" ; require A if B;
3279 2 font-lock-function-name-face)
3280 '("^[ \t]*format[ \t]+\\([a-zA-z_][a-zA-z_0-9:]*\\)[ \t]*=[ \t]*$"
3281 1 font-lock-function-name-face)
3282 (cond ((featurep 'font-lock-extra)
3283 '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
3284 (2 font-lock-string-face t)
3285 (0 '(restart 2 t)))) ; To highlight $a{bc}{ef}
3286 (font-lock-anchored
3287 '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
3288 (2 font-lock-string-face t)
3289 ("\\=[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
3290 nil nil
3291 (1 font-lock-string-face t))))
3292 (t '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
3293 2 font-lock-string-face t)))
3294 '("[ \t{,(]\\(-?[a-zA-Z0-9_:]+\\)[ \t]*=>" 1
3295 font-lock-string-face t)
3296 '("^[ \t]*\\([a-zA-Z0-9_]+[ \t]*:\\)[ \t]*\\($\\|{\\|\\<\\(until\\|while\\|for\\(each\\)?\\|do\\)\\>\\)" 1
3297 font-lock-reference-face) ; labels
3298 '("\\<\\(continue\\|next\\|last\\|redo\\|goto\\)\\>[ \t]+\\([a-zA-Z0-9_:]+\\)" ; labels as targets
3299 2 font-lock-reference-face)
3300 (cond ((featurep 'font-lock-extra)
3301 '("^[ \t]*\\(my\\|local\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)\\([ \t]*,\\)?"
3302 (3 font-lock-variable-name-face)
3303 (4 '(another 4 nil
3304 ("\\=[ \t]*,[ \t]*\\([$@%*][a-zA-Z0-9_:]+\\)\\([ \t]*,\\)?"
3305 (1 font-lock-variable-name-face)
3306 (2 '(restart 2 nil) nil t)))
3307 nil t))) ; local variables, multiple
3308 (font-lock-anchored
3309 '("^[ \t{}]*\\(my\\|local\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)"
3310 (3 font-lock-variable-name-face)
3311 ("\\=[ \t]*,[ \t]*\\([$@%*][a-zA-Z0-9_:]+\\)"
3312 nil nil
3313 (1 font-lock-variable-name-face))))
3314 (t '("^[ \t{}]*\\(my\\|local\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)"
3315 3 font-lock-variable-name-face)))
3316 '("\\<for\\(each\\)?[ \t]*\\(\\$[a-zA-Z_][a-zA-Z_0-9]*\\)[ \t]*("
3317 2 font-lock-variable-name-face)))
3318 (setq
3319 t-font-lock-keywords-1
3320 (and (fboundp 'turn-on-font-lock) ; Check for newer font-lock
3321 (not cperl-xemacs-p) ; not yet as of XEmacs 19.12
3322 '(
3323 ("\\(\\([@%]\\|\$#\\)[a-zA-Z_:][a-zA-Z0-9_:]*\\)" 1
3324 (if (eq (char-after (match-beginning 2)) ?%)
3325 font-lock-other-emphasized-face
3326 font-lock-emphasized-face)
3327 t) ; arrays and hashes
3328 ("\\(\\([$@]+\\)[a-zA-Z_:][a-zA-Z0-9_:]*\\)[ \t]*\\([[{]\\)"
3329 1
3330 (if (= (- (match-end 2) (match-beginning 2)) 1)
3331 (if (eq (char-after (match-beginning 3)) ?{)
3332 font-lock-other-emphasized-face
3333 font-lock-emphasized-face) ; arrays and hashes
3334 font-lock-variable-name-face) ; Just to put something
3335 t)
3336 ;;("\\([smy]\\|tr\\)\\([^a-z_A-Z0-9]\\)\\(\\([^\n\\]*||\\)\\)\\2")
3337 ;;; Too much noise from \s* @s[ and friends
3338 ;;("\\(\\<\\([msy]\\|tr\\)[ \t]*\\([^ \t\na-zA-Z0-9_]\\)\\|\\(/\\)\\)"
3339 ;;(3 font-lock-function-name-face t t)
3340 ;;(4
3341 ;; (if (cperl-slash-is-regexp)
3342 ;; font-lock-function-name-face 'default) nil t))
3343 )))
3344 (setq perl-font-lock-keywords-1 t-font-lock-keywords
3345 perl-font-lock-keywords perl-font-lock-keywords-1
3346 perl-font-lock-keywords-2 (append
3347 t-font-lock-keywords
3348 t-font-lock-keywords-1)))
3349 (if (fboundp 'ps-print-buffer) (cperl-ps-print-init))
3350 (if (or (featurep 'choose-color) (featurep 'font-lock-extra))
3351 (font-lock-require-faces
3352 (list
3353 ;; Color-light Color-dark Gray-light Gray-dark Mono
3354 (list 'font-lock-comment-face
3355 ["Firebrick" "OrangeRed" "DimGray" "Gray80"]
3356 nil
3357 [nil nil t t t]
3358 [nil nil t t t]
3359 nil)
3360 (list 'font-lock-string-face
3361 ["RosyBrown" "LightSalmon" "Gray50" "LightGray"]
3362 nil
3363 nil
3364 [nil nil t t t]
3365 nil)
3366 (list 'font-lock-keyword-face
3367 ["Purple" "LightSteelBlue" "DimGray" "Gray90"]
3368 nil
3369 [nil nil t t t]
3370 nil
3371 nil)
3372 (list 'font-lock-function-name-face
3373 (vector
3374 "Blue" "LightSkyBlue" "Gray50" "LightGray"
3375 (cdr (assq 'background-color ; if mono
3376 (frame-parameters))))
3377 (vector
3378 nil nil nil nil
3379 (cdr (assq 'foreground-color ; if mono
3380 (frame-parameters))))
3381 [nil nil t t t]
3382 nil
3383 nil)
3384 (list 'font-lock-variable-name-face
3385 ["DarkGoldenrod" "LightGoldenrod" "DimGray" "Gray90"]
3386 nil
3387 [nil nil t t t]
3388 [nil nil t t t]
3389 nil)
3390 (list 'font-lock-type-face
3391 ["DarkOliveGreen" "PaleGreen" "DimGray" "Gray80"]
3392 nil
3393 [nil nil t t t]
3394 nil
3395 [nil nil t t t]
3396 )
3397 (list 'font-lock-reference-face
3398 ["CadetBlue" "Aquamarine" "Gray50" "LightGray"]
3399 nil
3400 [nil nil t t t]
3401 nil
3402 [nil nil t t t]
3403 )
3404 (list 'font-lock-other-type-face
3405 ["chartreuse3" ("orchid1" "orange")
3406 nil "Gray80"]
3407 [nil nil "gray90"]
3408 [nil nil nil t t]
3409 [nil nil t t]
3410 [nil nil t t t]
3411 )
3412 (list 'font-lock-emphasized-face
3413 ["blue" "yellow" nil "Gray80"]
3414 ["lightyellow2" ("navy" "os2blue" "darkgreen")
3415 "gray90"]
3416 t
3417 nil
3418 nil)
3419 (list 'font-lock-other-emphasized-face
3420 ["red" "red" nil "Gray80"]
3421 ["lightyellow2" ("navy" "os2blue" "darkgreen")
3422 "gray90"]
3423 t
3424 t
3425 nil)))
3426 (defvar cperl-guessed-background nil
3427 "Display characteristics as guessed by cperl.")
3428 (or (fboundp 'x-color-defined-p)
3429 (defalias 'x-color-defined-p
3430 (cond ((fboundp 'color-defined-p) 'color-defined-p)
3431 ;; XEmacs >= 19.12
3432 ((fboundp 'valid-color-name-p) 'valid-color-name-p)
3433 ;; XEmacs 19.11
3434 (t 'x-valid-color-name-p))))
3435 (defvar font-lock-reference-face 'font-lock-reference-face)
3436 (defvar font-lock-variable-name-face 'font-lock-variable-name-face)
3437 (or (boundp 'font-lock-type-face)
3438 (defconst font-lock-type-face
3439 'font-lock-type-face
3440 "Face to use for data types.")
3441 )
3442 (or (boundp 'font-lock-other-type-face)
3443 (defconst font-lock-other-type-face
3444 'font-lock-other-type-face
3445 "Face to use for data types from another group.")
3446 )
3447 (if (not cperl-xemacs-p) nil
3448 (or (boundp 'font-lock-comment-face)
3449 (defconst font-lock-comment-face
3450 'font-lock-comment-face
3451 "Face to use for comments.")
3452 )
3453 (or (boundp 'font-lock-keyword-face)
3454 (defconst font-lock-keyword-face
3455 'font-lock-keyword-face
3456 "Face to use for keywords.")
3457 )
3458 (or (boundp 'font-lock-function-name-face)
3459 (defconst font-lock-function-name-face
3460 'font-lock-function-name-face
3461 "Face to use for function names.")
3462 )
3463 )
3464 ;;(if (featurep 'font-lock)
3465 (if (face-equal font-lock-type-face font-lock-comment-face)
3466 (defconst font-lock-type-face
3467 'font-lock-type-face
3468 "Face to use for basic data types.")
3469 )
3470;;; (if (fboundp 'eval-after-load)
3471;;; (eval-after-load "font-lock"
3472;;; '(if (face-equal font-lock-type-face
3473;;; font-lock-comment-face)
3474;;; (defconst font-lock-type-face
3475;;; 'font-lock-type-face
3476;;; "Face to use for basic data types.")
3477;;; ))) ; This does not work :-( Why?!
3478;;; ; Workaround: added to font-lock-m-h
3479;;; )
3480 (or (boundp 'font-lock-other-emphasized-face)
3481 (defconst font-lock-other-emphasized-face
3482 'font-lock-other-emphasized-face
3483 "Face to use for another type of emphasizing.")
3484 )
3485 (or (boundp 'font-lock-emphasized-face)
3486 (defconst font-lock-emphasized-face
3487 'font-lock-emphasized-face
3488 "Face to use for emphasizing.")
3489 )
3490 ;; Here we try to guess background
3491 (let ((background
3492 (if (boundp 'font-lock-background-mode)
3493 font-lock-background-mode
3494 'light))
3495 (face-list (and (fboundp 'face-list) (face-list)))
3496 is-face)
3497 (fset 'is-face
3498 (cond ((fboundp 'find-face)
3499 (symbol-function 'find-face))
3500 (face-list
3501 (function (lambda (face) (member face face-list))))
3502 (t
3503 (function (lambda (face) (boundp face))))))
3504 (defvar cperl-guessed-background
3505 (if (and (boundp 'font-lock-display-type)
3506 (eq font-lock-display-type 'grayscale))
3507 'gray
3508 background)
3509 "Background as guessed by CPerl mode")
3510 (if (is-face 'font-lock-type-face) nil
3511 (copy-face 'default 'font-lock-type-face)
3512 (cond
3513 ((eq background 'light)
3514 (set-face-foreground 'font-lock-type-face
3515 (if (x-color-defined-p "seagreen")
3516 "seagreen"
3517 "sea green")))
3518 ((eq background 'dark)
3519 (set-face-foreground 'font-lock-type-face
3520 (if (x-color-defined-p "os2pink")
3521 "os2pink"
3522 "pink")))
3523 (t
3524 (set-face-background 'font-lock-type-face "gray90"))))
3525 (if (is-face 'font-lock-other-type-face)
3526 nil
3527 (copy-face 'font-lock-type-face 'font-lock-other-type-face)
3528 (cond
3529 ((eq background 'light)
3530 (set-face-foreground 'font-lock-other-type-face
3531 (if (x-color-defined-p "chartreuse3")
3532 "chartreuse3"
3533 "chartreuse")))
3534 ((eq background 'dark)
3535 (set-face-foreground 'font-lock-other-type-face
3536 (if (x-color-defined-p "orchid1")
3537 "orchid1"
3538 "orange")))))
3539 (if (is-face 'font-lock-other-emphasized-face) nil
3540 (copy-face 'bold-italic 'font-lock-other-emphasized-face)
3541 (cond
3542 ((eq background 'light)
3543 (set-face-background 'font-lock-other-emphasized-face
3544 (if (x-color-defined-p "lightyellow2")
3545 "lightyellow2"
3546 (if (x-color-defined-p "lightyellow")
3547 "lightyellow"
3548 "light yellow"))))
3549 ((eq background 'dark)
3550 (set-face-background 'font-lock-other-emphasized-face
3551 (if (x-color-defined-p "navy")
3552 "navy"
3553 (if (x-color-defined-p "darkgreen")
3554 "darkgreen"
3555 "dark green"))))
3556 (t (set-face-background 'font-lock-other-emphasized-face "gray90"))))
3557 (if (is-face 'font-lock-emphasized-face) nil
3558 (copy-face 'bold 'font-lock-emphasized-face)
3559 (cond
3560 ((eq background 'light)
3561 (set-face-background 'font-lock-emphasized-face
3562 (if (x-color-defined-p "lightyellow2")
3563 "lightyellow2"
3564 "lightyellow")))
3565 ((eq background 'dark)
3566 (set-face-background 'font-lock-emphasized-face
3567 (if (x-color-defined-p "navy")
3568 "navy"
3569 (if (x-color-defined-p "darkgreen")
3570 "darkgreen"
3571 "dark green"))))
3572 (t (set-face-background 'font-lock-emphasized-face "gray90"))))
3573 (if (is-face 'font-lock-variable-name-face) nil
3574 (copy-face 'italic 'font-lock-variable-name-face))
3575 (if (is-face 'font-lock-reference-face) nil
3576 (copy-face 'italic 'font-lock-reference-face))))
3577 (setq cperl-faces-init t))
3578 (error nil)))
3579
3580
3581(defun cperl-ps-print-init ()
3582 "Initialization of `ps-print' components for faces used in CPerl."
3583 ;; Guard against old versions
3584 (defvar ps-underlined-faces nil)
3585 (defvar ps-bold-faces nil)
3586 (defvar ps-italic-faces nil)
3587 (setq ps-bold-faces
3588 (append '(font-lock-emphasized-face
3589 font-lock-keyword-face
3590 font-lock-variable-name-face
3591 font-lock-reference-face
3592 font-lock-other-emphasized-face)
3593 ps-bold-faces))
3594 (setq ps-italic-faces
3595 (append '(font-lock-other-type-face
3596 font-lock-reference-face
3597 font-lock-other-emphasized-face)
3598 ps-italic-faces))
3599 (setq ps-underlined-faces
3600 (append '(font-lock-emphasized-face
3601 font-lock-other-emphasized-face
3602 font-lock-other-type-face font-lock-type-face)
3603 ps-underlined-faces))
3604 (cons 'font-lock-type-face ps-underlined-faces))
3605
3606
3607(if (cperl-enable-font-lock) (cperl-windowed-init))
3608
3609(defun cperl-set-style (style)
3610 "Set CPerl-mode variables to use one of several different indentation styles.
3611The arguments are a string representing the desired style.
3612Available styles are GNU, K&R, BSD and Whitesmith."
3613 (interactive
3614 (let ((list (mapcar (function (lambda (elt) (list (car elt))))
3615 c-style-alist)))
3616 (list (completing-read "Enter style: " list nil 'insist))))
3617 (let ((style (cdr (assoc style c-style-alist))) setting str sym)
3618 (while style
3619 (setq setting (car style) style (cdr style))
3620 (setq str (symbol-name (car setting)))
3621 (and (string-match "^c-" str)
3622 (setq str (concat "cperl-" (substring str 2)))
3623 (setq sym (intern-soft str))
3624 (boundp sym)
3625 (set sym (cdr setting))))))
3626
3627(defun cperl-check-syntax ()
3628 (interactive)
3629 (require 'mode-compile)
3630 (let ((perl-dbg-flags "-wc"))
3631 (mode-compile)))
3632
3633(defun cperl-info-buffer (type)
3634 ;; Returns buffer with documentation. Creates if missing.
3635 ;; If TYPE, this vars buffer.
3636 ;; Special care is taken to not stomp over an existing info buffer
3637 (let* ((bname (if type "*info-perl-var*" "*info-perl*"))
3638 (info (get-buffer bname))
3639 (oldbuf (get-buffer "*info*")))
3640 (if info info
3641 (save-window-excursion
3642 ;; Get Info running
3643 (require 'info)
3644 (cond (oldbuf
3645 (set-buffer oldbuf)
3646 (rename-buffer "*info-perl-tmp*")))
3647 (save-window-excursion
3648 (info))
3649 (Info-find-node cperl-info-page (if type "perlvar" "perlfunc"))
3650 (set-buffer "*info*")
3651 (rename-buffer bname)
3652 (cond (oldbuf
3653 (set-buffer "*info-perl-tmp*")
3654 (rename-buffer "*info*")
3655 (set-buffer bname)))
3656 (make-variable-buffer-local 'window-min-height)
3657 (setq window-min-height 2)
3658 (current-buffer)))))
3659
3660(defun cperl-word-at-point (&optional p)
3661 ;; Returns the word at point or at P.
3662 (save-excursion
3663 (if p (goto-char p))
3664 (or (cperl-word-at-point-hard)
3665 (progn
3666 (require 'etags)
3667 (funcall (or (and (boundp 'find-tag-default-function)
3668 find-tag-default-function)
3669 (get major-mode 'find-tag-default-function)
3670 ;; XEmacs 19.12 has `find-tag-default-hook'; it is
3671 ;; automatically used within `find-tag-default':
3672 'find-tag-default))))))
3673
3674(defun cperl-info-on-command (command)
3675 "Shows documentation for Perl command in other window.
3676If perl-info buffer is shown in some frame, uses this frame.
3677Customized by setting variables `cperl-shrink-wrap-info-frame',
3678`cperl-max-help-size'."
3679 (interactive
3680 (let* ((default (cperl-word-at-point))
3681 (read (read-string
3682 (format "Find doc for Perl function (default %s): "
3683 default))))
3684 (list (if (equal read "")
3685 default
3686 read))))
3687
3688 (let ((buffer (current-buffer))
3689 (cmd-desc (concat "^" (regexp-quote command) "[^a-zA-Z_0-9]")) ; "tr///"
3690 pos isvar height iniheight frheight buf win fr1 fr2 iniwin not-loner
3691 max-height char-height buf-list)
3692 (if (string-match "^-[a-zA-Z]$" command)
3693 (setq cmd-desc "^-X[ \t\n]"))
3694 (setq isvar (string-match "^[$@%]" command)
3695 buf (cperl-info-buffer isvar)
3696 iniwin (selected-window)
3697 fr1 (window-frame iniwin))
3698 (set-buffer buf)
3699 (beginning-of-buffer)
3700 (or isvar
3701 (progn (re-search-forward "^-X[ \t\n]")
3702 (forward-line -1)))
3703 (if (re-search-forward cmd-desc nil t)
3704 (progn
3705 ;; Go back to beginning of the group (ex, for qq)
3706 (if (re-search-backward "^[ \t\n\f]")
3707 (forward-line 1))
3708 (beginning-of-line)
3709 ;; Get some of
3710 (setq pos (point)
3711 buf-list (list buf "*info-perl-var*" "*info-perl*"))
3712 (while (and (not win) buf-list)
3713 (setq win (get-buffer-window (car buf-list) t))
3714 (setq buf-list (cdr buf-list)))
3715 (or (not win)
3716 (eq (window-buffer win) buf)
3717 (set-window-buffer win buf))
3718 (and win (setq fr2 (window-frame win)))
3719 (if (or (not fr2) (eq fr1 fr2))
3720 (pop-to-buffer buf)
3721 (special-display-popup-frame buf) ; Make it visible
3722 (select-window win))
3723 (goto-char pos) ; Needed (?!).
3724 ;; Resize
3725 (setq iniheight (window-height)
3726 frheight (frame-height)
3727 not-loner (< iniheight (1- frheight))) ; Are not alone
3728 (cond ((if not-loner cperl-max-help-size
3729 cperl-shrink-wrap-info-frame)
3730 (setq height
3731 (+ 2
3732 (count-lines
3733 pos
3734 (save-excursion
3735 (if (re-search-forward
3736 "^[ \t][^\n]*\n+\\([^ \t\n\f]\\|\\'\\)" nil t)
3737 (match-beginning 0) (point-max)))))
3738 max-height
3739 (if not-loner
3740 (/ (* (- frheight 3) cperl-max-help-size) 100)
3741 (setq char-height (frame-char-height))
3742 ;; Non-functioning under OS/2:
3743 (if (eq char-height 1) (setq char-height 18))
3744 ;; Title, menubar, + 2 for slack
3745 (- (/ (x-display-pixel-height) char-height) 4)
3746 ))
3747 (if (> height max-height) (setq height max-height))
3748 ;;(message "was %s doing %s" iniheight height)
3749 (if not-loner
3750 (enlarge-window (- height iniheight))
3751 (set-frame-height (window-frame win) (1+ height)))))
3752 (set-window-start (selected-window) pos))
3753 (message "No entry for %s found." command))
3754 ;;(pop-to-buffer buffer)
3755 (select-window iniwin)))
3756
3757(defun cperl-info-on-current-command ()
3758 "Shows documentation for Perl command at point in other window."
3759 (interactive)
3760 (cperl-info-on-command (cperl-word-at-point)))
3761
3762(defun cperl-imenu-info-imenu-search ()
3763 (if (looking-at "^-X[ \t\n]") nil
3764 (re-search-backward
3765 "^\n\\([-a-zA-Z_]+\\)[ \t\n]")
3766 (forward-line 1)))
3767
3768(defun cperl-imenu-info-imenu-name ()
3769 (buffer-substring
3770 (match-beginning 1) (match-end 1)))
3771
3772(defun cperl-imenu-on-info ()
3773 (interactive)
3774 (let* ((buffer (current-buffer))
3775 imenu-create-index-function
3776 imenu-prev-index-position-function
3777 imenu-extract-index-name-function
3778 (index-item (save-restriction
3779 (save-window-excursion
3780 (set-buffer (cperl-info-buffer nil))
3781 (setq imenu-create-index-function
3782 'imenu-default-create-index-function
3783 imenu-prev-index-position-function
3784 'cperl-imenu-info-imenu-search
3785 imenu-extract-index-name-function
3786 'cperl-imenu-info-imenu-name)
3787 (imenu-choose-buffer-index)))))
3788 (and index-item
3789 (progn
3790 (push-mark)
3791 (pop-to-buffer "*info-perl*")
3792 (cond
3793 ((markerp (cdr index-item))
3794 (goto-char (marker-position (cdr index-item))))
3795 (t
3796 (goto-char (cdr index-item))))
3797 (set-window-start (selected-window) (point))
3798 (pop-to-buffer buffer)))))
3799
3800(defun cperl-lineup (beg end &optional step minshift)
3801 "Lineup construction in a region.
3802Beginning of region should be at the start of a construction.
3803All first occurrences of this construction in the lines that are
3804partially contained in the region are lined up at the same column.
3805
3806MINSHIFT is the minimal amount of space to insert before the construction.
3807STEP is the tabwidth to position constructions.
3808If STEP is `nil', `cperl-lineup-step' will be used
3809\(or `cperl-indent-level', if `cperl-lineup-step' is `nil').
3810Will not move the position at the start to the left."
3811 (interactive "r")
3812 (let (search col tcol seen b e)
3813 (save-excursion
3814 (goto-char end)
3815 (end-of-line)
3816 (setq end (point-marker))
3817 (goto-char beg)
3818 (skip-chars-forward " \t\f")
3819 (setq beg (point-marker))
3820 (indent-region beg end nil)
3821 (goto-char beg)
3822 (setq col (current-column))
3823 (if (looking-at "[a-zA-Z0-9_]")
3824 (if (looking-at "\\<[a-zA-Z0-9_]+\\>")
3825 (setq search
3826 (concat "\\<"
3827 (regexp-quote
3828 (buffer-substring (match-beginning 0)
3829 (match-end 0))) "\\>"))
3830 (error "Cannot line up in a middle of the word"))
3831 (if (looking-at "$")
3832 (error "Cannot line up end of line"))
3833 (setq search (regexp-quote (char-to-string (following-char)))))
3834 (setq step (or step cperl-lineup-step cperl-indent-level))
3835 (or minshift (setq minshift 1))
3836 (while (progn
3837 (beginning-of-line 2)
3838 (and (< (point) end)
3839 (re-search-forward search end t)
3840 (goto-char (match-beginning 0))))
3841 (setq tcol (current-column) seen t)
3842 (if (> tcol col) (setq col tcol)))
3843 (or seen
3844 (error "The construction to line up occurred only once"))
3845 (goto-char beg)
3846 (setq col (+ col minshift))
3847 (if (/= (% col step) 0) (setq step (* step (1+ (/ col step)))))
3848 (while
3849 (progn
3850 (setq e (point))
3851 (skip-chars-backward " \t")
3852 (delete-region (point) e)
3853 (indent-to-column col); (make-string (- col (current-column)) ?\ ))
3854 (beginning-of-line 2)
3855 (and (< (point) end)
3856 (re-search-forward search end t)
3857 (goto-char (match-beginning 0)))))))) ; No body
3858
3859(defun cperl-etags (&optional add all files)
3860 "Run etags with appropriate options for Perl files.
3861If optional argument ALL is `recursive', will process Perl files
3862in subdirectories too."
3863 (interactive)
3864 (let ((cmd "etags")
3865 (args '("-l" "none" "-r" "/\\<\\(package\\|sub\\)[ \\t]+\\(\\([a-zA-Z0-9:_]*::\\)?\\([a-zA-Z0-9_]+\\)[ \\t]*\\(([^()]*)[ \t]*\\)?\\([{#]\\|$\\)\\)/\\4/"))
3866 res)
3867 (if add (setq args (cons "-a" args)))
3868 (or files (setq files (list buffer-file-name)))
3869 (cond
3870 ((eq all 'recursive)
3871 ;;(error "Not implemented: recursive")
3872 (setq args (append (list "-e"
3873 "sub wanted {push @ARGV, $File::Find::name if /\\.[pP][Llm]$/}
3874 use File::Find;
3875 find(\\&wanted, '.');
3876 exec @ARGV;"
3877 cmd) args)
3878 cmd "perl"))
3879 (all
3880 ;;(error "Not implemented: all")
3881 (setq args (append (list "-e"
3882 "push @ARGV, <*.PL *.pl *.pm>;
3883 exec @ARGV;"
3884 cmd) args)
3885 cmd "perl"))
3886 (t
3887 (setq args (append args files))))
3888 (setq res (apply 'call-process cmd nil nil nil args))
3889 (or (eq res 0)
3890 (message "etags returned \"%s\"" res))))
3891
3892(defun cperl-toggle-auto-newline ()
3893 "Toggle the state of `cperl-auto-newline'."
3894 (interactive)
3895 (setq cperl-auto-newline (not cperl-auto-newline))
3896 (message "Newlines will %sbe auto-inserted now."
3897 (if cperl-auto-newline "" "not ")))
3898
3899(defun cperl-toggle-abbrev ()
3900 "Toggle the state of automatic keyword expansion in CPerl mode."
3901 (interactive)
3902 (abbrev-mode (if abbrev-mode 0 1))
3903 (message "Perl control structure will %sbe auto-inserted now."
3904 (if abbrev-mode "" "not ")))
3905
3906
3907(defun cperl-toggle-electric ()
3908 "Toggle the state of parentheses doubling in CPerl mode."
3909 (interactive)
3910 (setq cperl-electric-parens (if (cperl-val 'cperl-electric-parens) 'null t))
3911 (message "Parentheses will %sbe auto-doubled now."
3912 (if (cperl-val 'cperl-electric-parens) "" "not ")))
3913
3914;;;; Tags file creation.
3915
3916(defvar cperl-tmp-buffer " *cperl-tmp*")
3917
3918(defun cperl-setup-tmp-buf ()
3919 (set-buffer (get-buffer-create cperl-tmp-buffer))
3920 (set-syntax-table cperl-mode-syntax-table)
3921 (buffer-disable-undo)
3922 (auto-fill-mode 0)
3923 (if cperl-use-syntax-table-text-property-for-tags
3924 (progn
3925 (make-variable-buffer-local 'parse-sexp-lookup-properties)
3926 ;; Do not introduce variable if not needed, we check it!
3927 (set 'parse-sexp-lookup-properties t))))
3928
3929(defun cperl-xsub-scan ()
3930 (require 'cl)
3931 (require 'imenu)
3932 (let ((index-alist '())
3933 (prev-pos 0) index index1 name package prefix)
3934 (goto-char (point-min))
3935 (if noninteractive
3936 (message "Scanning XSUB for index")
3937 (imenu-progress-message prev-pos 0))
3938 ;; Search for the function
3939 (progn ;;save-match-data
3940 (while (re-search-forward
3941 "^\\([ \t]*MODULE\\>[^\n]*\\<PACKAGE[ \t]*=[ \t]*\\([a-zA-Z_][a-zA-Z_0-9:]*\\)\\>\\|\\([a-zA-Z_][a-zA-Z_0-9]*\\)(\\|[ \t]*BOOT:\\)"
3942 nil t)
3943 (or noninteractive
3944 (imenu-progress-message prev-pos))
3945 (cond
3946 ((match-beginning 2) ; SECTION
3947 (setq package (buffer-substring (match-beginning 2) (match-end 2)))
3948 (goto-char (match-beginning 0))
3949 (skip-chars-forward " \t")
3950 (forward-char 1)
3951 (if (looking-at "[^\n]*\\<PREFIX[ \t]*=[ \t]*\\([a-zA-Z_][a-zA-Z_0-9]*\\)\\>")
3952 (setq prefix (buffer-substring (match-beginning 1) (match-end 1)))
3953 (setq prefix nil)))
3954 ((not package) nil) ; C language section
3955 ((match-beginning 3) ; XSUB
3956 (goto-char (1+ (match-beginning 3)))
3957 (setq index (imenu-example--name-and-position))
3958 (setq name (buffer-substring (match-beginning 3) (match-end 3)))
3959 (if (and prefix (string-match (concat "^" prefix) name))
3960 (setq name (substring name (length prefix))))
3961 (cond ((string-match "::" name) nil)
3962 (t
3963 (setq index1 (cons (concat package "::" name) (cdr index)))
3964 (push index1 index-alist)))
3965 (setcar index name)
3966 (push index index-alist))
3967 (t ; BOOT: section
3968 ;; (beginning-of-line)
3969 (setq index (imenu-example--name-and-position))
3970 (setcar index (concat package "::BOOT:"))
3971 (push index index-alist)))))
3972 (or noninteractive
3973 (imenu-progress-message prev-pos 100))
3974 ;;(setq index-alist
3975 ;; (if (default-value 'imenu-sort-function)
3976 ;; (sort index-alist (default-value 'imenu-sort-function))
3977 ;; (nreverse index-alist)))
3978 index-alist))
3979
3980(defun cperl-find-tags (file xs topdir)
3981 (let (ind (b (get-buffer cperl-tmp-buffer)) lst elt pos ret rel
3982 (cperl-pod-here-fontify nil))
3983 (save-excursion
3984 (if b (set-buffer b)
3985 (cperl-setup-tmp-buf))
3986 (erase-buffer)
3987 (setq file (car (insert-file-contents file)))
3988 (message "Scanning file %s ..." file)
3989 (if (and cperl-use-syntax-table-text-property-for-tags
3990 (not xs))
3991 (condition-case err ; after __END__ may have garbage
3992 (cperl-find-pods-heres)
3993 (error (message "While scanning for syntax: %s" err))))
3994 (if xs
3995 (setq lst (cperl-xsub-scan))
3996 (setq ind (imenu-example--create-perl-index))
3997 (setq lst (cdr (assoc "+Unsorted List+..." ind))))
3998 (setq lst
3999 (mapcar
4000 (function
4001 (lambda (elt)
4002 (cond ((string-match "^[_a-zA-Z]" (car elt))
4003 (goto-char (cdr elt))
4004 (list (car elt)
4005 (point) (count-lines 1 (point))
4006 (buffer-substring (progn
4007 (skip-chars-forward
4008 ":_a-zA-Z0-9")
4009 (or (eolp) (forward-char 1))
4010 (point))
4011 (progn
4012 (beginning-of-line)
4013 (point))))))))
4014 lst))
4015 (erase-buffer)
4016 (while lst
4017 (setq elt (car lst) lst (cdr lst))
4018 (if elt
4019 (progn
4020 (insert (elt elt 3)
4021 127
4022 (if (string-match "^package " (car elt))
4023 (substring (car elt) 8)
4024 (car elt) )
4025 1
4026 (number-to-string (elt elt 1))
4027 ","
4028 (number-to-string (elt elt 2))
4029 "\n")
4030 (if (and (string-match "^[_a-zA-Z]+::" (car elt))
4031 (string-match "^sub[ \t]+\\([_a-zA-Z]+\\)[^:_a-zA-Z]"
4032 (elt elt 3)))
4033 ;; Need to insert the name without package as well
4034 (setq lst (cons (cons (substring (elt elt 3)
4035 (match-beginning 1)
4036 (match-end 1))
4037 (cdr elt))
4038 lst))))))
4039 (setq pos (point))
4040 (goto-char 1)
4041 (setq rel file)
4042 ;; On case-preserving filesystems (EMX on OS/2) case might be encoded in properties
4043 (set-text-properties 0 (length rel) nil rel)
4044 (and (equal topdir (substring rel 0 (length topdir)))
4045 (setq rel (substring file (length topdir))))
4046 (insert "\f\n" rel "," (number-to-string (1- pos)) "\n")
4047 (setq ret (buffer-substring 1 (point-max)))
4048 (erase-buffer)
4049 (or noninteractive
4050 (message "Scanning file %s finished" file))
4051 ret)))
4052
4053(defun cperl-add-tags-recurse-noxs ()
4054 "Add to TAGS data for Perl and XSUB files in the current directory and kids.
4055Use as
4056 emacs -batch -q -no-site-file -l emacs/cperl-mode.el \
4057 -f cperl-add-tags-recurse
4058"
4059 (cperl-write-tags nil nil t t nil t))
4060
4061(defun cperl-add-tags-recurse ()
4062 "Add to TAGS file data for Perl files in the current directory and kids.
4063Use as
4064 emacs -batch -q -no-site-file -l emacs/cperl-mode.el \
4065 -f cperl-add-tags-recurse
4066"
4067 (cperl-write-tags nil nil t t))
4068
4069(defun cperl-write-tags (&optional file erase recurse dir inbuffer noxs topdir)
4070 ;; If INBUFFER, do not select buffer, and do not save
4071 ;; If ERASE is `ignore', do not erase, and do not try to delete old info.
4072 (require 'etags)
4073 (if file nil
4074 (setq file (if dir default-directory (buffer-file-name)))
4075 (if (and (not dir) (buffer-modified-p)) (error "Save buffer first!")))
4076 (or topdir
4077 (setq topdir default-directory))
4078 (let ((tags-file-name "TAGS")
4079 (case-fold-search (eq system-type 'emx))
4080 xs)
4081 (save-excursion
4082 (cond (inbuffer nil) ; Already there
4083 ((file-exists-p tags-file-name)
4084 (visit-tags-table-buffer tags-file-name))
4085 (t (set-buffer (find-file-noselect tags-file-name))))
4086 (cond
4087 (dir
4088 (cond ((eq erase 'ignore))
4089 (erase
4090 (erase-buffer)
4091 (setq erase 'ignore)))
4092 (let ((files
4093 (directory-files file t
4094 (if recurse nil cperl-scan-files-regexp)
4095 t)))
4096 (mapcar (function (lambda (file)
4097 (cond
4098 ((string-match cperl-noscan-files-regexp file)
4099 nil)
4100 ((not (file-directory-p file))
4101 (if (string-match cperl-scan-files-regexp file)
4102 (cperl-write-tags file erase recurse nil t noxs topdir)))
4103 ((not recurse) nil)
4104 (t (cperl-write-tags file erase recurse t t noxs topdir)))))
4105 files))
4106 )
4107 (t
4108 (setq xs (string-match "\\.xs$" file))
4109 (if (not (and xs noxs))
4110 (progn
4111 (cond ((eq erase 'ignore) (goto-char (point-max)))
4112 (erase (erase-buffer))
4113 (t
4114 (goto-char 1)
4115 (if (search-forward (concat "\f\n" file ",") nil t)
4116 (progn
4117 (search-backward "\f\n")
4118 (delete-region (point)
4119 (save-excursion
4120 (forward-char 1)
4121 (if (search-forward "\f\n"
4122 nil 'toend)
4123 (- (point) 2)
4124 (point-max)))))
4125 (goto-char (point-max)))))
4126 (insert (cperl-find-tags file xs topdir))))))
4127 (if inbuffer nil ; Delegate to the caller
4128 (save-buffer 0) ; No backup
4129 (if (fboundp 'initialize-new-tags-table) ; Do we need something special in XEmacs?
4130 (initialize-new-tags-table))))))
4131
4132(defvar cperl-tags-hier-regexp-list
4133 (concat
4134 "^\\("
4135 "\\(package\\)\\>"
4136 "\\|"
4137 "sub\\>[^\n]+::"
4138 "\\|"
4139 "[a-zA-Z_][a-zA-Z_0-9:]*(\C-?[^\n]+::" ; XSUB?
4140 "\\|"
4141 "[ \t]*BOOT:\C-?[^\n]+::" ; BOOT section
4142 "\\)"))
4143
4144(defvar cperl-hierarchy '(() ())
4145 "Global hierarchy of classes")
4146
4147(defun cperl-tags-hier-fill ()
4148 ;; Suppose we are in a tag table cooked by cperl.
4149 (goto-char 1)
4150 (let (type pack name pos line chunk ord cons1 file str info fileind)
4151 (while (re-search-forward cperl-tags-hier-regexp-list nil t)
4152 (setq pos (match-beginning 0)
4153 pack (match-beginning 2))
4154 (beginning-of-line)
4155 (if (looking-at (concat
4156 "\\([^\n]+\\)"
4157 "\C-?"
4158 "\\([^\n]+\\)"
4159 "\C-a"
4160 "\\([0-9]+\\)"
4161 ","
4162 "\\([0-9]+\\)"))
4163 (progn
4164 (setq ;;str (buffer-substring (match-beginning 1) (match-end 1))
4165 name (buffer-substring (match-beginning 2) (match-end 2))
4166 ;;pos (buffer-substring (match-beginning 3) (match-end 3))
4167 line (buffer-substring (match-beginning 4) (match-end 4))
4168 ord (if pack 1 0)
4169 info (etags-snarf-tag) ; Moves to beginning of the next line
4170 file (file-of-tag)
4171 fileind (format "%s:%s" file line))
4172 ;; Move back
4173 (forward-char -1)
4174 ;; Make new member of hierarchy name ==> file ==> pos if needed
4175 (if (setq cons1 (assoc name (nth ord cperl-hierarchy)))
4176 ;; Name known
4177 (setcdr cons1 (cons (cons fileind (vector file info))
4178 (cdr cons1)))
4179 ;; First occurrence of the name, start alist
4180 (setq cons1 (cons name (list (cons fileind (vector file info)))))
4181 (if pack
4182 (setcar (cdr cperl-hierarchy)
4183 (cons cons1 (nth 1 cperl-hierarchy)))
4184 (setcar cperl-hierarchy
4185 (cons cons1 (car cperl-hierarchy)))))))
4186 (end-of-line))))
4187
4188(defun cperl-tags-hier-init (&optional update)
4189 "Show hierarchical menu of classes and methods.
4190Finds info about classes by a scan of loaded TAGS files.
4191Supposes that the TAGS files contain fully qualified function names.
4192One may build such TAGS files from CPerl mode menu."
4193 (interactive)
4194 (require 'etags)
4195 (require 'imenu)
4196 (if (or update (null (nth 2 cperl-hierarchy)))
4197 (let (pack name cons1 to l1 l2 l3 l4
4198 (remover (function (lambda (elt) ; (name (file1...) (file2..))
4199 (or (nthcdr 2 elt)
4200 ;; Only in one file
4201 (setcdr elt (cdr (nth 1 elt))))))))
4202 ;; (setq cperl-hierarchy '(() () ())) ; Would write into '() later!
4203 (setq cperl-hierarchy (list l1 l2 l3))
4204 (or tags-table-list
4205 (call-interactively 'visit-tags-table))
4206 (message "Updating list of classes...")
4207 (mapcar
4208 (function
4209 (lambda (tagsfile)
4210 (set-buffer (get-file-buffer tagsfile))
4211 (cperl-tags-hier-fill)))
4212 tags-table-list)
4213 (mapcar remover (car cperl-hierarchy))
4214 (mapcar remover (nth 1 cperl-hierarchy))
4215 (setq to (list nil (cons "Packages: " (nth 1 cperl-hierarchy))
4216 (cons "Methods: " (car cperl-hierarchy))))
4217 (cperl-tags-treeify to 1)
4218 (setcar (nthcdr 2 cperl-hierarchy)
4219 (cperl-menu-to-keymap (cons '("+++UPDATE+++" . -999) (cdr to))))
4220 (message "Updating list of classes: done, requesting display...")
4221 ;;(cperl-imenu-addback (nth 2 cperl-hierarchy))
4222 ))
4223 (or (nth 2 cperl-hierarchy)
4224 (error "No items found"))
4225 (setq update
4226;;; (imenu-choose-buffer-index "Packages: " (nth 2 cperl-hierarchy))
4227 (if window-system
4228 (x-popup-menu t (nth 2 cperl-hierarchy))
4229 (require 'tmm)
4230 (tmm-prompt (nth 2 cperl-hierarchy))))
4231 (if (and update (listp update))
4232 (progn (while (cdr update) (setq update (cdr update)))
4233 (setq update (car update)))) ; Get the last from the list
4234 (if (vectorp update)
4235 (progn
4236 (find-file (elt update 0))
4237 (etags-goto-tag-location (elt update 1))))
4238 (if (eq update -999) (cperl-tags-hier-init t)))
4239
4240(defun cperl-tags-treeify (to level)
4241 ;; cadr of `to' is read-write. On start it is a cons
4242 (let* ((regexp (concat "^\\(" (mapconcat
4243 'identity
4244 (make-list level "[_a-zA-Z0-9]+")
4245 "::")
4246 "\\)\\(::\\)?"))
4247 (packages (cdr (nth 1 to)))
4248 (methods (cdr (nth 2 to)))
4249 l1 head tail cons1 cons2 ord writeto packs recurse
4250 root-packages root-functions ms many_ms same_name ps
4251 (move-deeper
4252 (function
4253 (lambda (elt)
4254 (cond ((and (string-match regexp (car elt))
4255 (or (eq ord 1) (match-end 2)))
4256 (setq head (substring (car elt) 0 (match-end 1))
4257 tail (if (match-end 2) (substring (car elt)
4258 (match-end 2)))
4259 recurse t)
4260 (if (setq cons1 (assoc head writeto)) nil
4261 ;; Need to init new head
4262 (setcdr writeto (cons (list head (list "Packages: ")
4263 (list "Methods: "))
4264 (cdr writeto)))
4265 (setq cons1 (nth 1 writeto)))
4266 (setq cons2 (nth ord cons1)) ; Either packs or meths
4267 (setcdr cons2 (cons elt (cdr cons2))))
4268 ((eq ord 2)
4269 (setq root-functions (cons elt root-functions)))
4270 (t
4271 (setq root-packages (cons elt root-packages))))))))
4272 (setcdr to l1) ; Init to dynamic space
4273 (setq writeto to)
4274 (setq ord 1)
4275 (mapcar move-deeper packages)
4276 (setq ord 2)
4277 (mapcar move-deeper methods)
4278 (if recurse
4279 (mapcar (function (lambda (elt)
4280 (cperl-tags-treeify elt (1+ level))))
4281 (cdr to)))
4282 ;;Now clean up leaders with one child only
4283 (mapcar (function (lambda (elt)
4284 (if (not (and (listp (cdr elt))
4285 (eq (length elt) 2))) nil
4286 (setcar elt (car (nth 1 elt)))
4287 (setcdr elt (cdr (nth 1 elt))))))
4288 (cdr to))
4289 ;; Sort the roots of subtrees
4290 (if (default-value 'imenu-sort-function)
4291 (setcdr to
4292 (sort (cdr to) (default-value 'imenu-sort-function))))
4293 ;; Now add back functions removed from display
4294 (mapcar (function (lambda (elt)
4295 (setcdr to (cons elt (cdr to)))))
4296 (if (default-value 'imenu-sort-function)
4297 (nreverse
4298 (sort root-functions (default-value 'imenu-sort-function)))
4299 root-functions))
4300 ;; Now add back packages removed from display
4301 (mapcar (function (lambda (elt)
4302 (setcdr to (cons (cons (concat "package " (car elt))
4303 (cdr elt))
4304 (cdr to)))))
4305 (if (default-value 'imenu-sort-function)
4306 (nreverse
4307 (sort root-packages (default-value 'imenu-sort-function)))
4308 root-packages))
4309 ))
4310
4311;;;(x-popup-menu t
4312;;; '(keymap "Name1"
4313;;; ("Ret1" "aa")
4314;;; ("Head1" "ab"
4315;;; keymap "Name2"
4316;;; ("Tail1" "x") ("Tail2" "y"))))
4317
4318(defun cperl-list-fold (list name limit)
4319 (let (list1 list2 elt1 (num 0))
4320 (if (<= (length list) limit) list
4321 (setq list1 nil list2 nil)
4322 (while list
4323 (setq num (1+ num)
4324 elt1 (car list)
4325 list (cdr list))
4326 (if (<= num imenu-max-items)
4327 (setq list2 (cons elt1 list2))
4328 (setq list1 (cons (cons name
4329 (nreverse list2))
4330 list1)
4331 list2 (list elt1)
4332 num 1)))
4333 (nreverse (cons (cons name
4334 (nreverse list2))
4335 list1)))))
4336
4337(defun cperl-menu-to-keymap (menu &optional name)
4338 (let (list)
4339 (cons 'keymap
4340 (mapcar
4341 (function
4342 (lambda (elt)
4343 (cond ((listp (cdr elt))
4344 (setq list (cperl-list-fold
4345 (cdr elt) (car elt) imenu-max-items))
4346 (cons nil
4347 (cons (car elt)
4348 (cperl-menu-to-keymap list))))
4349 (t
4350 (list (cdr elt) (car elt) t))))) ; t is needed in 19.34
4351 (cperl-list-fold menu "Root" imenu-max-items)))))
4352
4353
4354(defvar cperl-bad-style-regexp
4355 (mapconcat 'identity
4356 '("[^-\n\t <>=+!.&|(*/'`\"#^][-=+<>!|&^]" ; char sign
4357 "[-<>=+^&|]+[^- \t\n=+<>~]" ; sign+ char
4358 )
4359 "\\|")
4360 "Finds places such that insertion of a whitespace may help a lot.")
4361
4362(defvar cperl-not-bad-style-regexp
4363 (mapconcat 'identity
4364 '("[^-\t <>=+]\\(--\\|\\+\\+\\)" ; var-- var++
4365 "[a-zA-Z0-9_][|&][a-zA-Z0-9_$]" ; abc|def abc&def are often used.
4366 "&[(a-zA-Z0-9_$]" ; &subroutine &(var->field)
4367 "<\\$?\\sw+\\(\\.\\sw+\\)?>" ; <IN> <stdin.h>
4368 "-[a-zA-Z][ \t]+[_$\"'`]" ; -f file
4369 "-[0-9]" ; -5
4370 "\\+\\+" ; ++var
4371 "--" ; --var
4372 ".->" ; a->b
4373 "->" ; a SPACE ->b
4374 "\\[-" ; a[-1]
4375 "^=" ; =head
4376 "||"
4377 "&&"
4378 "[CBIXSLFZ]<\\(\\sw\\|\\s \\|\\s_\\|[\n]\\)*>" ; C<code like text>
4379 "-[a-zA-Z_0-9]+[ \t]*=>" ; -option => value
4380 ;; Unaddressed trouble spots: = -abc, f(56, -abc) --- specialcased below
4381 ;;"[*/+-|&<.]+="
4382 )
4383 "\\|")
4384 "If matches at the start of match found by `my-bad-c-style-regexp',
4385insertion of a whitespace will not help.")
4386
4387(defvar found-bad)
4388
4389(defun cperl-find-bad-style ()
4390 "Find places in the buffer where insertion of a whitespace may help.
4391Prompts user for insertion of spaces.
4392Currently it is tuned to C and Perl syntax."
4393 (interactive)
4394 (let (found-bad (p (point)))
4395 (setq last-nonmenu-event 13) ; To disable popup
4396 (beginning-of-buffer)
4397 (map-y-or-n-p "Insert space here? "
4398 (function (lambda (arg) (insert " ")))
4399 'cperl-next-bad-style
4400 '("location" "locations" "insert a space into")
4401 '((?\C-r (lambda (arg)
4402 (let ((buffer-quit-function
4403 'exit-recursive-edit))
4404 (message "Exit with Esc Esc")
4405 (recursive-edit)
4406 t)) ; Consider acted upon
4407 "edit, exit with Esc Esc")
4408 (?e (lambda (arg)
4409 (let ((buffer-quit-function
4410 'exit-recursive-edit))
4411 (message "Exit with Esc Esc")
4412 (recursive-edit)
4413 t)) ; Consider acted upon
4414 "edit, exit with Esc Esc"))
4415 t)
4416 (if found-bad (goto-char found-bad)
4417 (goto-char p)
4418 (message "No appropriate place found"))))
4419
4420(defun cperl-next-bad-style ()
4421 (let (p (not-found t) (point (point)) found)
4422 (while (and not-found
4423 (re-search-forward cperl-bad-style-regexp nil 'to-end))
4424 (setq p (point))
4425 (goto-char (match-beginning 0))
4426 (if (or
4427 (looking-at cperl-not-bad-style-regexp)
4428 ;; Check for a < -b and friends
4429 (and (eq (following-char) ?\-)
4430 (save-excursion
4431 (skip-chars-backward " \t\n")
4432 (memq (preceding-char) '(?\= ?\> ?\< ?\, ?\(, ?\[, ?\{))))
4433 ;; Now check for syntax type
4434 (save-match-data
4435 (setq found (point))
4436 (beginning-of-defun)
4437 (let ((pps (parse-partial-sexp (point) found)))
4438 (or (nth 3 pps) (nth 4 pps) (nth 5 pps)))))
4439 (goto-char (match-end 0))
4440 (goto-char (1- p))
4441 (setq not-found nil
4442 found-bad found)))
4443 (not not-found)))
4444
4445=06
4446;;; Getting help
4447(defvar cperl-have-help-regexp
4448 ;;(concat "\\("
4449 (mapconcat
4450 'identity
4451 '("[$@%*&][0-9a-zA-Z_:]+\\([ \t]*[[{]\\)?" ; Usual variable
4452 "[$@]\\^[a-zA-Z]" ; Special variable
4453 "[$@][^ \n\t]" ; Special variable
4454 "-[a-zA-Z]" ; File test
4455 "\\\\[a-zA-Z0]" ; Special chars
4456 "^=[a-z][a-zA-Z0-9_]*" ; Pod sections
4457 "[-!&*+,-./<=>?\\\\^|~]+" ; Operator
4458 "[a-zA-Z_0-9:]+" ; symbol or number
4459 "x="
4460 "#!"
4461 )
4462 ;;"\\)\\|\\("
4463 "\\|"
4464 )
4465 ;;"\\)"
4466 ;;)
4467 "Matches places in the buffer we can find help for.")
4468
4469(defvar cperl-message-on-help-error t)
4470(defvar cperl-help-from-timer nil)
4471
4472(defun cperl-word-at-point-hard ()
4473 ;; Does not save-excursion
4474 ;; Get to the something meaningful
4475 (or (eobp) (eolp) (forward-char 1))
4476 (re-search-backward "[-a-zA-Z0-9_:!&*+,-./<=>?\\\\^|~$%@]"
4477 (save-excursion (beginning-of-line) (point))
4478 'to-beg)
4479 ;; (cond
4480 ;; ((or (eobp) (looking-at "[][ \t\n{}();,]")) ; Not at a symbol
4481 ;; (skip-chars-backward " \n\t\r({[]});,")
4482 ;; (or (bobp) (backward-char 1))))
4483 ;; Try to backtrace
4484 (cond
4485 ((looking-at "[a-zA-Z0-9_:]") ; symbol
4486 (skip-chars-backward "a-zA-Z0-9_:")
4487 (cond
4488 ((and (eq (preceding-char) ?^) ; $^I
4489 (eq (char-after (- (point) 2)) ?\$))
4490 (forward-char -2))
4491 ((memq (preceding-char) (append "*$@%&\\" nil)) ; *glob
4492 (forward-char -1))
4493 ((and (eq (preceding-char) ?\=)
4494 (eq (current-column) 1))
4495 (forward-char -1))) ; =head1
4496 (if (and (eq (preceding-char) ?\<)
4497 (looking-at "\\$?[a-zA-Z0-9_:]+>")) ; <FH>
4498 (forward-char -1)))
4499 ((and (looking-at "=") (eq (preceding-char) ?x)) ; x=
4500 (forward-char -1))
4501 ((and (looking-at "\\^") (eq (preceding-char) ?\$)) ; $^I
4502 (forward-char -1))
4503 ((looking-at "[-!&*+,-./<=>?\\\\^|~]")
4504 (skip-chars-backward "-!&*+,-./<=>?\\\\^|~")
4505 (cond
4506 ((and (eq (preceding-char) ?\$)
4507 (not (eq (char-after (- (point) 2)) ?\$))) ; $-
4508 (forward-char -1))
4509 ((and (eq (following-char) ?\>)
4510 (string-match "[a-zA-Z0-9_]" (char-to-string (preceding-char)))
4511 (save-excursion
4512 (forward-sexp -1)
4513 (and (eq (preceding-char) ?\<)
4514 (looking-at "\\$?[a-zA-Z0-9_:]+>")))) ; <FH>
4515 (search-backward "<"))))
4516 ((and (eq (following-char) ?\$)
4517 (eq (preceding-char) ?\<)
4518 (looking-at "\\$?[a-zA-Z0-9_:]+>")) ; <$fh>
4519 (forward-char -1)))
4520 (if (looking-at cperl-have-help-regexp)
4521 (buffer-substring (match-beginning 0) (match-end 0))))
4522
4523(defun cperl-get-help ()
4524 "Get one-line docs on the symbol at the point.
4525The data for these docs is a little bit obsolete and may be in fact longer
4526than a line. Your contribution to update/shorten it is appreciated."
4527 (interactive)
4528 (save-match-data ; May be called "inside" query-replace
4529 (save-excursion
4530 (let ((word (cperl-word-at-point-hard)))
4531 (if word
4532 (if (and cperl-help-from-timer ; Bail out if not in mainland
4533 (not (string-match "^#!\\|\\\\\\|^=" word)) ; Show help even in comments/strings.
4534 (or (memq (get-text-property (point) 'face)
4535 '(font-lock-comment-face font-lock-string-face))
4536 (memq (get-text-property (point) 'syntax-type)
4537 '(pod here-doc format))))
4538 nil
4539 (cperl-describe-perl-symbol word))
4540 (if cperl-message-on-help-error
4541 (message "Nothing found for %s..."
4542 (buffer-substring (point) (min (+ 5 (point)) (point-max))))))))))
4543
4544;;; Stolen from perl-descr.el by Johan Vromans:
4545
4546(defvar cperl-doc-buffer " *perl-doc*"
4547 "Where the documentation can be found.")
4548
4549(defun cperl-describe-perl-symbol (val)
4550 "Display the documentation of symbol at point, a Perl operator."
4551 (let ((enable-recursive-minibuffers t)
4552 args-file regexp)
4553 (cond
4554 ((string-match "^[&*][a-zA-Z_]" val)
4555 (setq val (concat (substring val 0 1) "NAME")))
4556 ((string-match "^[$@]\\([a-zA-Z_:0-9]+\\)[ \t]*\\[" val)
4557 (setq val (concat "@" (substring val 1 (match-end 1)))))
4558 ((string-match "^[$@]\\([a-zA-Z_:0-9]+\\)[ \t]*{" val)
4559 (setq val (concat "%" (substring val 1 (match-end 1)))))
4560 ((and (string= val "x") (string-match "^x=" val))
4561 (setq val "x="))
4562 ((string-match "^\\$[\C-a-\C-z]" val)
4563 (setq val (concat "$^" (char-to-string (+ ?A -1 (aref val 1))))))
4564 ((string-match "^CORE::" val)
4565 (setq val "CORE::"))
4566 ((string-match "^SUPER::" val)
4567 (setq val "SUPER::"))
4568 ((and (string= "<" val) (string-match "^<\\$?[a-zA-Z0-9_:]+>" val))
4569 (setq val "<NAME>")))
4570 (setq regexp (concat "^"
4571 "\\([^a-zA-Z0-9_:]+[ \t]+\\)?"
4572 (regexp-quote val)
4573 "\\([ \t([/]\\|$\\)"))
4574
4575 ;; get the buffer with the documentation text
4576 (cperl-switch-to-doc-buffer)
4577
4578 ;; lookup in the doc
4579 (goto-char (point-min))
4580 (let ((case-fold-search nil))
4581 (list
4582 (if (re-search-forward regexp (point-max) t)
4583 (save-excursion
4584 (beginning-of-line 1)
4585 (let ((lnstart (point)))
4586 (end-of-line)
4587 (message "%s" (buffer-substring lnstart (point)))))
4588 (if cperl-message-on-help-error
4589 (message "No definition for %s" val)))))))
4590
4591(defvar cperl-short-docs "Ignore my value"
4592 ;; Perl4 version was written by Johan Vromans (jvromans@squirrel.nl)
4593 "# based on '@(#)@ perl-descr.el 1.9 - describe-perl-symbol' [Perl 5]
4594! ... Logical negation.
4595... != ... Numeric inequality.
4596... !~ ... Search pattern, substitution, or translation (negated).
4597$! In numeric context: errno. In a string context: error string.
4598$\" The separator which joins elements of arrays interpolated in strings.
4599$# The output format for printed numbers. Initial value is %.15g or close.
4600$$ Process number of this script. Changes in the fork()ed child process.
4601$% The current page number of the currently selected output channel.
4602
4603 The following variables are always local to the current block:
4604
4605$1 Match of the 1st set of parentheses in the last match (auto-local).
4606$2 Match of the 2nd set of parentheses in the last match (auto-local).
4607$3 Match of the 3rd set of parentheses in the last match (auto-local).
4608$4 Match of the 4th set of parentheses in the last match (auto-local).
4609$5 Match of the 5th set of parentheses in the last match (auto-local).
4610$6 Match of the 6th set of parentheses in the last match (auto-local).
4611$7 Match of the 7th set of parentheses in the last match (auto-local).
4612$8 Match of the 8th set of parentheses in the last match (auto-local).
4613$9 Match of the 9th set of parentheses in the last match (auto-local).
4614$& The string matched by the last pattern match (auto-local).
4615$' The string after what was matched by the last match (auto-local).
4616$` The string before what was matched by the last match (auto-local).
4617
4618$( The real gid of this process.
4619$) The effective gid of this process.
4620$* Deprecated: Set to 1 to do multiline matching within a string.
4621$+ The last bracket matched by the last search pattern.
4622$, The output field separator for the print operator.
4623$- The number of lines left on the page.
4624$. The current input line number of the last filehandle that was read.
4625$/ The input record separator, newline by default.
4626$0 Name of the file containing the perl script being executed. May be set.
4627$: String may be broken after these characters to fill ^-lines in a format.
4628$; Subscript separator for multi-dim array emulation. Default \"\\034\".
4629$< The real uid of this process.
4630$= The page length of the current output channel. Default is 60 lines.
4631$> The effective uid of this process.
4632$? The status returned by the last ``, pipe close or `system'.
4633$@ The perl error message from the last eval or do @var{EXPR} command.
4634$ARGV The name of the current file used with <> .
4635$[ Deprecated: The index of the first element/char in an array/string.
4636$\\ The output record separator for the print operator.
4637$] The perl version string as displayed with perl -v.
4638$^ The name of the current top-of-page format.
4639$^A The current value of the write() accumulator for format() lines.
4640$^D The value of the perl debug (-D) flags.
4641$^E Information about the last system error other than that provided by $!.
4642$^F The highest system file descriptor, ordinarily 2.
4643$^H The current set of syntax checks enabled by `use strict'.
4644$^I The value of the in-place edit extension (perl -i option).
4645$^L What formats output to perform a formfeed. Default is \f.
4646$^O The operating system name under which this copy of Perl was built.
4647$^P Internal debugging flag.
4648$^T The time the script was started. Used by -A/-M/-C file tests.
4649$^W True if warnings are requested (perl -w flag).
4650$^X The name under which perl was invoked (argv[0] in C-speech).
4651$_ The default input and pattern-searching space.
4652$| Auto-flush after write/print on current output channel? Default 0.
4653$~ The name of the current report format.
4654... % ... Modulo division.
4655... %= ... Modulo division assignment.
4656%ENV Contains the current environment.
4657%INC List of files that have been require-d or do-ne.
4658%SIG Used to set signal handlers for various signals.
4659... & ... Bitwise and.
4660... && ... Logical and.
4661... &&= ... Logical and assignment.
4662... &= ... Bitwise and assignment.
4663... * ... Multiplication.
4664... ** ... Exponentiation.
4665*NAME Glob: all objects refered by NAME. *NAM1 = *NAM2 aliases NAM1 to NAM2.
4666&NAME(arg0, ...) Subroutine call. Arguments go to @_.
4667... + ... Addition. +EXPR Makes EXPR into scalar context.
4668++ Auto-increment (magical on strings). ++EXPR EXPR++
4669... += ... Addition assignment.
4670, Comma operator.
4671... - ... Subtraction.
4672-- Auto-decrement (NOT magical on strings). --EXPR EXPR--
4673... -= ... Subtraction assignment.
4674-A Access time in days since script started.
4675-B File is a non-text (binary) file.
4676-C Inode change time in days since script started.
4677-M Age in days since script started.
4678-O File is owned by real uid.
4679-R File is readable by real uid.
4680-S File is a socket .
4681-T File is a text file.
4682-W File is writable by real uid.
4683-X File is executable by real uid.
4684-b File is a block special file.
4685-c File is a character special file.
4686-d File is a directory.
4687-e File exists .
4688-f File is a plain file.
4689-g File has setgid bit set.
4690-k File has sticky bit set.
4691-l File is a symbolic link.
4692-o File is owned by effective uid.
4693-p File is a named pipe (FIFO).
4694-r File is readable by effective uid.
4695-s File has non-zero size.
4696-t Tests if filehandle (STDIN by default) is opened to a tty.
4697-u File has setuid bit set.
4698-w File is writable by effective uid.
4699-x File is executable by effective uid.
4700-z File has zero size.
4701. Concatenate strings.
4702.. Alternation, also range operator.
4703.= Concatenate assignment strings
4704... / ... Division. /PATTERN/ioxsmg Pattern match
4705... /= ... Division assignment.
4706/PATTERN/ioxsmg Pattern match.
4707... < ... Numeric less than. <pattern> Glob. See <NAME>, <> as well.
4708<NAME> Reads line from filehandle NAME (a bareword or dollar-bareword).
4709<pattern> Glob (Unless pattern is bareword/dollar-bareword - see <NAME>).
4710<> Reads line from union of files in @ARGV (= command line) and STDIN.
4711... << ... Bitwise shift left. << start of HERE-DOCUMENT.
4712... <= ... Numeric less than or equal to.
4713... <=> ... Numeric compare.
4714... = ... Assignment.
4715... == ... Numeric equality.
4716... =~ ... Search pattern, substitution, or translation
4717... > ... Numeric greater than.
4718... >= ... Numeric greater than or equal to.
4719... >> ... Bitwise shift right.
4720... >>= ... Bitwise shift right assignment.
4721... ? ... : ... Condition=if-then-else operator. ?PAT? One-time pattern match.
4722?PATTERN? One-time pattern match.
4723@ARGV Command line arguments (not including the command name - see $0).
4724@INC List of places to look for perl scripts during do/include/use.
4725@_ Parameter array for subroutines. Also used by split unless in array context.
4726\\ Creates reference to what follows, like \$var, or quotes non-\w in strings.
4727\\0 Octal char, e.g. \\033.
4728\\E Case modification terminator. See \\Q, \\L, and \\U.
4729\\L Lowercase until \\E . See also \l, lc.
4730\\U Upcase until \\E . See also \u, uc.
4731\\Q Quote metacharacters until \\E . See also quotemeta.
4732\\a Alarm character (octal 007).
4733\\b Backspace character (octal 010).
4734\\c Control character, e.g. \\c[ .
4735\\e Escape character (octal 033).
4736\\f Formfeed character (octal 014).
4737\\l Lowercase the next character. See also \\L and \\u, lcfirst.
4738\\n Newline character (octal 012 on most systems).
4739\\r Return character (octal 015 on most systems).
4740\\t Tab character (octal 011).
4741\\u Upcase the next character. See also \\U and \\l, ucfirst.
4742\\x Hex character, e.g. \\x1b.
4743... ^ ... Bitwise exclusive or.
4744__END__ Ends program source.
4745__DATA__ Ends program source.
4746__FILE__ Current (source) filename.
4747__LINE__ Current line in current source.
4748__PACKAGE__ Current package.
4749ARGV Default multi-file input filehandle. <ARGV> is a synonym for <>.
4750ARGVOUT Output filehandle with -i flag.
4751BEGIN { ... } Immediately executed (during compilation) piece of code.
4752END { ... } Pseudo-subroutine executed after the script finishes.
4753DATA Input filehandle for what follows after __END__ or __DATA__.
4754accept(NEWSOCKET,GENERICSOCKET)
4755alarm(SECONDS)
4756atan2(X,Y)
4757bind(SOCKET,NAME)
4758binmode(FILEHANDLE)
4759caller[(LEVEL)]
4760chdir(EXPR)
4761chmod(LIST)
4762chop[(LIST|VAR)]
4763chown(LIST)
4764chroot(FILENAME)
4765close(FILEHANDLE)
4766closedir(DIRHANDLE)
4767... cmp ... String compare.
4768connect(SOCKET,NAME)
4769continue of { block } continue { block }. Is executed after `next' or at end.
4770cos(EXPR)
4771crypt(PLAINTEXT,SALT)
4772dbmclose(%HASH)
4773dbmopen(%HASH,DBNAME,MODE)
4774defined(EXPR)
4775delete($HASH{KEY})
4776die(LIST)
4777do { ... }|SUBR while|until EXPR executes at least once
4778do(EXPR|SUBR([LIST])) (with while|until executes at least once)
4779dump LABEL
4780each(%HASH)
4781endgrent
4782endhostent
4783endnetent
4784endprotoent
4785endpwent
4786endservent
4787eof[([FILEHANDLE])]
4788... eq ... String equality.
4789eval(EXPR) or eval { BLOCK }
4790exec(LIST)
4791exit(EXPR)
4792exp(EXPR)
4793fcntl(FILEHANDLE,FUNCTION,SCALAR)
4794fileno(FILEHANDLE)
4795flock(FILEHANDLE,OPERATION)
4796for (EXPR;EXPR;EXPR) { ... }
4797foreach [VAR] (@ARRAY) { ... }
4798fork
4799... ge ... String greater than or equal.
4800getc[(FILEHANDLE)]
4801getgrent
4802getgrgid(GID)
4803getgrnam(NAME)
4804gethostbyaddr(ADDR,ADDRTYPE)
4805gethostbyname(NAME)
4806gethostent
4807getlogin
4808getnetbyaddr(ADDR,ADDRTYPE)
4809getnetbyname(NAME)
4810getnetent
4811getpeername(SOCKET)
4812getpgrp(PID)
4813getppid
4814getpriority(WHICH,WHO)
4815getprotobyname(NAME)
4816getprotobynumber(NUMBER)
4817getprotoent
4818getpwent
4819getpwnam(NAME)
4820getpwuid(UID)
4821getservbyname(NAME,PROTO)
4822getservbyport(PORT,PROTO)
4823getservent
4824getsockname(SOCKET)
4825getsockopt(SOCKET,LEVEL,OPTNAME)
4826gmtime(EXPR)
4827goto LABEL
4828grep(EXPR,LIST)
4829... gt ... String greater than.
4830hex(EXPR)
4831if (EXPR) { ... } [ elsif (EXPR) { ... } ... ] [ else { ... } ] or EXPR if EXPR
4832index(STR,SUBSTR[,OFFSET])
4833int(EXPR)
4834ioctl(FILEHANDLE,FUNCTION,SCALAR)
4835join(EXPR,LIST)
4836keys(%HASH)
4837kill(LIST)
4838last [LABEL]
4839... le ... String less than or equal.
4840length(EXPR)
4841link(OLDFILE,NEWFILE)
4842listen(SOCKET,QUEUESIZE)
4843local(LIST)
4844localtime(EXPR)
4845log(EXPR)
4846lstat(EXPR|FILEHANDLE|VAR)
4847... lt ... String less than.
4848m/PATTERN/iogsmx
4849mkdir(FILENAME,MODE)
4850msgctl(ID,CMD,ARG)
4851msgget(KEY,FLAGS)
4852msgrcv(ID,VAR,SIZE,TYPE.FLAGS)
4853msgsnd(ID,MSG,FLAGS)
4854my VAR or my (VAR1,...) Introduces a lexical variable ($VAR, @ARR, or %HASH).
4855... ne ... String inequality.
4856next [LABEL]
4857oct(EXPR)
4858open(FILEHANDLE[,EXPR])
4859opendir(DIRHANDLE,EXPR)
4860ord(EXPR) ASCII value of the first char of the string.
4861pack(TEMPLATE,LIST)
4862package NAME Introduces package context.
4863pipe(READHANDLE,WRITEHANDLE) Create a pair of filehandles on ends of a pipe.
4864pop(ARRAY)
4865print [FILEHANDLE] [(LIST)]
4866printf [FILEHANDLE] (FORMAT,LIST)
4867push(ARRAY,LIST)
4868q/STRING/ Synonym for 'STRING'
4869qq/STRING/ Synonym for \"STRING\"
4870qx/STRING/ Synonym for `STRING`
4871rand[(EXPR)]
4872read(FILEHANDLE,SCALAR,LENGTH[,OFFSET])
4873readdir(DIRHANDLE)
4874readlink(EXPR)
4875recv(SOCKET,SCALAR,LEN,FLAGS)
4876redo [LABEL]
4877rename(OLDNAME,NEWNAME)
4878require [FILENAME | PERL_VERSION]
4879reset[(EXPR)]
4880return(LIST)
4881reverse(LIST)
4882rewinddir(DIRHANDLE)
4883rindex(STR,SUBSTR[,OFFSET])
4884rmdir(FILENAME)
4885s/PATTERN/REPLACEMENT/gieoxsm
4886scalar(EXPR)
4887seek(FILEHANDLE,POSITION,WHENCE)
4888seekdir(DIRHANDLE,POS)
4889select(FILEHANDLE | RBITS,WBITS,EBITS,TIMEOUT)
4890semctl(ID,SEMNUM,CMD,ARG)
4891semget(KEY,NSEMS,SIZE,FLAGS)
4892semop(KEY,...)
4893send(SOCKET,MSG,FLAGS[,TO])
4894setgrent
4895sethostent(STAYOPEN)
4896setnetent(STAYOPEN)
4897setpgrp(PID,PGRP)
4898setpriority(WHICH,WHO,PRIORITY)
4899setprotoent(STAYOPEN)
4900setpwent
4901setservent(STAYOPEN)
4902setsockopt(SOCKET,LEVEL,OPTNAME,OPTVAL)
4903shift[(ARRAY)]
4904shmctl(ID,CMD,ARG)
4905shmget(KEY,SIZE,FLAGS)
4906shmread(ID,VAR,POS,SIZE)
4907shmwrite(ID,STRING,POS,SIZE)
4908shutdown(SOCKET,HOW)
4909sin(EXPR)
4910sleep[(EXPR)]
4911socket(SOCKET,DOMAIN,TYPE,PROTOCOL)
4912socketpair(SOCKET1,SOCKET2,DOMAIN,TYPE,PROTOCOL)
4913sort [SUBROUTINE] (LIST)
4914splice(ARRAY,OFFSET[,LENGTH[,LIST]])
4915split[(/PATTERN/[,EXPR[,LIMIT]])]
4916sprintf(FORMAT,LIST)
4917sqrt(EXPR)
4918srand(EXPR)
4919stat(EXPR|FILEHANDLE|VAR)
4920study[(SCALAR)]
4921sub [NAME [(format)]] { BODY } sub NAME [(format)]; sub [(format)] {...}
4922substr(EXPR,OFFSET[,LEN])
4923symlink(OLDFILE,NEWFILE)
4924syscall(LIST)
4925sysread(FILEHANDLE,SCALAR,LENGTH[,OFFSET])
4926system(LIST)
4927syswrite(FILEHANDLE,SCALAR,LENGTH[,OFFSET])
4928tell[(FILEHANDLE)]
4929telldir(DIRHANDLE)
4930time
4931times
4932tr/SEARCHLIST/REPLACEMENTLIST/cds
4933truncate(FILE|EXPR,LENGTH)
4934umask[(EXPR)]
4935undef[(EXPR)]
4936unless (EXPR) { ... } [ else { ... } ] or EXPR unless EXPR
4937unlink(LIST)
4938unpack(TEMPLATE,EXPR)
4939unshift(ARRAY,LIST)
4940until (EXPR) { ... } EXPR until EXPR
4941utime(LIST)
4942values(%HASH)
4943vec(EXPR,OFFSET,BITS)
4944wait
4945waitpid(PID,FLAGS)
4946wantarray Returns true if the sub/eval is called in list context.
4947warn(LIST)
4948while (EXPR) { ... } EXPR while EXPR
4949write[(EXPR|FILEHANDLE)]
4950... x ... Repeat string or array.
4951x= ... Repetition assignment.
4952y/SEARCHLIST/REPLACEMENTLIST/
4953... | ... Bitwise or.
4954... || ... Logical or.
4955~ ... Unary bitwise complement.
4956#! OS interpreter indicator. If has `perl', used for options, and -x.
4957AUTOLOAD {...} Shorthand for `sub AUTOLOAD {...}'.
4958CORE:: Prefix to access builtin function if imported sub obscures it.
4959SUPER:: Prefix to lookup for a method in @ISA classes.
4960DESTROY Shorthand for `sub DESTROY {...}'.
4961... EQ ... Obsolete synonym of `eq'.
4962... GE ... Obsolete synonym of `ge'.
4963... GT ... Obsolete synonym of `gt'.
4964... LE ... Obsolete synonym of `le'.
4965... LT ... Obsolete synonym of `lt'.
4966... NE ... Obsolete synonym of `ne'.
4967abs [ EXPR ] absolute value
4968... and ... Low-precedence synonym for &&.
4969bless REFERENCE [, PACKAGE] Makes reference into an object of a package.
4970chomp [LIST] Strips $/ off LIST/$_. Returns count. Special if $/ eq ''!
4971chr Converts a number to char with the same ordinal.
4972else Part of if/unless {BLOCK} elsif {BLOCK} else {BLOCK}.
4973elsif Part of if/unless {BLOCK} elsif {BLOCK} else {BLOCK}.
4974exists $HASH{KEY} True if the key exists.
4975format [NAME] = Start of output format. Ended by a single dot (.) on a line.
4976formline PICTURE, LIST Backdoor into \"format\" processing.
4977glob EXPR Synonym of <EXPR>.
4978lc [ EXPR ] Returns lowercased EXPR.
4979lcfirst [ EXPR ] Returns EXPR with lower-cased first letter.
4980map EXPR, LIST or map {BLOCK} LIST Applies EXPR/BLOCK to elts of LIST.
4981no PACKAGE [SYMBOL1, ...] Partial reverse for `use'. Runs `unimport' method.
4982not ... Low-precedence synonym for ! - negation.
4983... or ... Low-precedence synonym for ||.
4984pos STRING Set/Get end-position of the last match over this string, see \\G.
4985quotemeta [ EXPR ] Quote regexp metacharacters.
4986qw/WORD1 .../ Synonym of split('', 'WORD1 ...')
4987readline FH Synonym of <FH>.
4988readpipe CMD Synonym of `CMD`.
4989ref [ EXPR ] Type of EXPR when dereferenced.
4990sysopen FH, FILENAME, MODE [, PERM] (MODE is numeric, see Fcntl.)
4991tie VAR, PACKAGE, LIST Hide an object behind a simple Perl variable.
4992tied Returns internal object for a tied data.
4993uc [ EXPR ] Returns upcased EXPR.
4994ucfirst [ EXPR ] Returns EXPR with upcased first letter.
4995untie VAR Unlink an object from a simple Perl variable.
4996use PACKAGE [SYMBOL1, ...] Compile-time `require' with consequent `import'.
4997... xor ... Low-precedence synonym for exclusive or.
4998prototype \&SUB Returns prototype of the function given a reference.
4999=head1 Top-level heading.
5000=head2 Second-level heading.
5001=head3 Third-level heading (is there such?).
5002=over [ NUMBER ] Start list.
5003=item [ TITLE ] Start new item in the list.
5004=back End list.
5005=cut Switch from POD to Perl.
5006=pod Switch from Perl to POD.
5007")
5008
5009(defun cperl-switch-to-doc-buffer ()
5010 "Go to the perl documentation buffer and insert the documentation."
5011 (interactive)
5012 (let ((buf (get-buffer-create cperl-doc-buffer)))
5013 (if (interactive-p)
5014 (switch-to-buffer-other-window buf)
5015 (set-buffer buf))
5016 (if (= (buffer-size) 0)
5017 (progn
5018 (insert (documentation-property 'cperl-short-docs
5019 'variable-documentation))
5020 (setq buffer-read-only t)))))
5021
5022(defun cperl-beautify-regexp-piece (b e embed)
5023 ;; b is before the starting delimiter, e before the ending
5024 ;; e should be a marker, may be changed, but remains "correct".
5025 (let (s c tmp (m (make-marker)) (m1 (make-marker)) c1 spaces inline code)
5026 (if (not embed)
5027 (goto-char (1+ b))
5028 (goto-char b)
5029 (cond ((looking-at "(\\?\\\\#") ; badly commented (?#)
5030 (forward-char 2)
5031 (delete-char 1)
5032 (forward-char 1))
5033 ((looking-at "(\\?[^a-zA-Z]")
5034 (forward-char 3))
5035 ((looking-at "(\\?") ; (?i)
5036 (forward-char 2))
5037 (t
5038 (forward-char 1))))
5039 (setq c (if embed (current-indentation) (1- (current-column)))
5040 c1 (+ c (or cperl-regexp-indent-step cperl-indent-level)))
5041 (or (looking-at "[ \t]*[\n#]")
5042 (progn
5043 (insert "\n")))
5044 (goto-char e)
5045 (beginning-of-line)
5046 (if (re-search-forward "[^ \t]" e t)
5047 (progn
5048 (goto-char e)
5049 (insert "\n")
5050 (indent-to-column c)
5051 (set-marker e (point))))
5052 (goto-char b)
5053 (end-of-line 2)
5054 (while (< (point) (marker-position e))
5055 (beginning-of-line)
5056 (setq s (point)
5057 inline t)
5058 (skip-chars-forward " \t")
5059 (delete-region s (point))
5060 (indent-to-column c1)
5061 (while (and
5062 inline
5063 (looking-at
5064 (concat "\\([a-zA-Z0-9]+[^*+{?]\\)" ; 1 word
5065 "\\|" ; Embedded variable
5066 "\\$\\([a-zA-Z0-9_]+\\([[{]\\)?\\|[^\n \t)|]\\)" ; 2 3
5067 "\\|" ; $ ^
5068 "[$^]"
5069 "\\|" ; simple-code simple-code*?
5070 "\\(\\\\.\\|[^][()#|*+?\n]\\)\\([*+{?]\\??\\)?" ; 4 5
5071 "\\|" ; Class
5072 "\\(\\[\\)" ; 6
5073 "\\|" ; Grouping
5074 "\\((\\(\\?\\)?\\)" ; 7 8
5075 "\\|" ; |
5076 "\\(|\\)" ; 9
5077 )))
5078 (goto-char (match-end 0))
5079 (setq spaces t)
5080 (cond ((match-beginning 1) ; Alphanum word + junk
5081 (forward-char -1))
5082 ((or (match-beginning 3) ; $ab[12]
5083 (and (match-beginning 5) ; X* X+ X{2,3}
5084 (eq (preceding-char) ?\{)))
5085 (forward-char -1)
5086 (forward-sexp 1))
5087 ((match-beginning 6) ; []
5088 (setq tmp (point))
5089 (if (looking-at "\\^?\\]")
5090 (goto-char (match-end 0)))
5091 (or (re-search-forward "\\]\\([*+{?]\\)?" e t)
5092 (progn
5093 (goto-char (1- tmp))
5094 (error "[]-group not terminated")))
5095 (if (not (eq (preceding-char) ?\{)) nil
5096 (forward-char -1)
5097 (forward-sexp 1)))
5098 ((match-beginning 7) ; ()
5099 (goto-char (match-beginning 0))
5100 (or (eq (current-column) c1)
5101 (progn
5102 (insert "\n")
5103 (indent-to-column c1)))
5104 (setq tmp (point))
5105 (forward-sexp 1)
5106 ;; (or (forward-sexp 1)
5107 ;; (progn
5108 ;; (goto-char tmp)
5109 ;; (error "()-group not terminated")))
5110 (set-marker m (1- (point)))
5111 (set-marker m1 (point))
5112 (cond
5113 ((not (match-beginning 8))
5114 (cperl-beautify-regexp-piece tmp m t))
5115 ((eq (char-after (+ 2 tmp)) ?\{) ; Code
5116 t)
5117 ((eq (char-after (+ 2 tmp)) ?\() ; Conditional
5118 (goto-char (+ 2 tmp))
5119 (forward-sexp 1)
5120 (cperl-beautify-regexp-piece (point) m t))
5121 (t
5122 (cperl-beautify-regexp-piece tmp m t)))
5123 (goto-char m1)
5124 (cond ((looking-at "[*+?]\\??")
5125 (goto-char (match-end 0)))
5126 ((eq (following-char) ?\{)
5127 (forward-sexp 1)
5128 (if (eq (following-char) ?\?)
5129 (forward-char))))
5130 (skip-chars-forward " \t")
5131 (setq spaces nil)
5132 (if (looking-at "[#\n]")
5133 (progn
5134 (or (eolp) (indent-for-comment))
5135 (beginning-of-line 2))
5136 (insert "\n"))
5137 (end-of-line)
5138 (setq inline nil))
5139 ((match-beginning 9) ; |
5140 (forward-char -1)
5141 (setq tmp (point))
5142 (beginning-of-line)
5143 (if (re-search-forward "[^ \t]" tmp t)
5144 (progn
5145 (goto-char tmp)
5146 (insert "\n"))
5147 ;; first at line
5148 (delete-region (point) tmp))
5149 (indent-to-column c)
5150 (forward-char 1)
5151 (skip-chars-forward " \t")
5152 (setq spaces nil)
5153 (if (looking-at "[#\n]")
5154 (beginning-of-line 2)
5155 (insert "\n"))
5156 (end-of-line)
5157 (setq inline nil)))
5158 (or (looking-at "[ \t\n]")
5159 (not spaces)
5160 (insert " "))
5161 (skip-chars-forward " \t"))
5162 (or (looking-at "[#\n]")
5163 (error "unknown code \"%s\" in a regexp" (buffer-substring (point)
5164 (1+ (point)))))
5165 (and inline (end-of-line 2)))
5166 ;; Special-case the last line of group
5167 (if (and (>= (point) (marker-position e))
5168 (/= (current-indentation) c))
5169 (progn
5170 (beginning-of-line)
5171 (setq s (point))
5172 (skip-chars-forward " \t")
5173 (delete-region s (point))
5174 (indent-to-column c)))
5175 ))
5176
5177(defun cperl-make-regexp-x ()
5178 (save-excursion
5179 (or cperl-use-syntax-table-text-property
5180 (error "I need to have regex marked!"))
5181 ;; Find the start
5182 (re-search-backward "\\s|") ; Assume it is scanned already.
5183 ;;(forward-char 1)
5184 (let ((b (point)) (e (make-marker)) have-x delim (c (current-column))
5185 (sub-p (eq (preceding-char) ?s)) s)
5186 (forward-sexp 1)
5187 (set-marker e (1- (point)))
5188 (setq delim (preceding-char))
5189 (if (and sub-p (eq delim (char-after (- (point) 2))))
5190 (error "Possible s/blah// - do not know how to deal with"))
5191 (if sub-p (forward-sexp 1))
5192 (if (looking-at "\\sw*x")
5193 (setq have-x t)
5194 (insert "x"))
5195 ;; Protect fragile " ", "#"
5196 (if have-x nil
5197 (goto-char (1+ b))
5198 (while (re-search-forward "\\(\\=\\|[^\\\\]\\)\\(\\\\\\\\\\)*[ \t\n#]" e t) ; Need to include (?#) too?
5199 (forward-char -1)
5200 (insert "\\")
5201 (forward-char 1)))
5202 b)))
5203
5204(defun cperl-beautify-regexp ()
5205 "do it. (Experimental, may change semantics, recheck the result.)
5206We suppose that the regexp is scanned already."
5207 (interactive)
5208 (cperl-make-regexp-x)
5209 (re-search-backward "\\s|") ; Assume it is scanned already.
5210 ;;(forward-char 1)
5211 (let ((b (point)) (e (make-marker)))
5212 (forward-sexp 1)
5213 (set-marker e (1- (point)))
5214 (cperl-beautify-regexp-piece b e nil)))
5215
5216(defun cperl-contract-level ()
5217 "Find an enclosing group in regexp and contract it. Unfinished.
5218\(Experimental, may change semantics, recheck the result.)
5219We suppose that the regexp is scanned already."
5220 (interactive)
5221 (let ((bb (cperl-make-regexp-x)) done)
5222 (while (not done)
5223 (or (eq (following-char) ?\()
5224 (search-backward "(" (1+ bb) t)
5225 (error "Cannot find `(' which starts a group"))
5226 (setq done
5227 (save-excursion
5228 (skip-chars-backward "\\")
5229 (looking-at "\\(\\\\\\\\\\)*(")))
5230 (or done (forward-char -1)))
5231 (let ((b (point)) (e (make-marker)) s c)
5232 (forward-sexp 1)
5233 (set-marker e (1- (point)))
5234 (goto-char b)
5235 (while (re-search-forward "\\(#\\)\\|\n" e t)
5236 (cond
5237 ((match-beginning 1) ; #-comment
5238 (or c (setq c (current-indentation)))
5239 (beginning-of-line 2) ; Skip
5240 (setq s (point))
5241 (skip-chars-forward " \t")
5242 (delete-region s (point))
5243 (indent-to-column c))
5244 (t
5245 (delete-char -1)
5246 (just-one-space)))))))
5247
5248(defun cperl-beautify-level ()
5249 "Find an enclosing group in regexp and beautify it.
5250\(Experimental, may change semantics, recheck the result.)
5251We suppose that the regexp is scanned already."
5252 (interactive)
5253 (let ((bb (cperl-make-regexp-x)) done)
5254 (while (not done)
5255 (or (eq (following-char) ?\()
5256 (search-backward "(" (1+ bb) t)
5257 (error "Cannot find `(' which starts a group"))
5258 (setq done
5259 (save-excursion
5260 (skip-chars-backward "\\")
5261 (looking-at "\\(\\\\\\\\\\)*(")))
5262 (or done (forward-char -1)))
5263 (let ((b (point)) (e (make-marker)))
5264 (forward-sexp 1)
5265 (set-marker e (1- (point)))
5266 (cperl-beautify-regexp-piece b e nil))))
5267
5268(if (fboundp 'run-with-idle-timer)
5269 (progn
5270 (defvar cperl-help-shown nil
5271 "Non-nil means that the help was already shown now.")
5272
5273 (defvar cperl-lazy-installed nil
5274 "Non-nil means that the lazy-help handlers are installed now.")
5275
5276 (defun cperl-lazy-install ()
5277 (interactive)
5278 (make-variable-buffer-local 'cperl-help-shown)
5279 (if (and (cperl-val 'cperl-lazy-help-time)
5280 (not cperl-lazy-installed))
5281 (progn
5282 (add-hook 'post-command-hook 'cperl-lazy-hook)
5283 (run-with-idle-timer
5284 (cperl-val 'cperl-lazy-help-time 1000000 5)
5285 t
5286 'cperl-get-help-defer)
5287 (setq cperl-lazy-installed t))))
5288
5289 (defun cperl-lazy-unstall ()
5290 (interactive)
5291 (remove-hook 'post-command-hook 'cperl-lazy-hook)
5292 (cancel-function-timers 'cperl-get-help-defer)
5293 (setq cperl-lazy-installed nil))
5294
5295 (defun cperl-lazy-hook ()
5296 (setq cperl-help-shown nil))
5297
5298 (defun cperl-get-help-defer ()
5299 (if (not (eq major-mode 'perl-mode)) nil
5300 (let ((cperl-message-on-help-error nil) (cperl-help-from-timer t))
5301 (cperl-get-help)
5302 (setq cperl-help-shown t))))
5303 (cperl-lazy-install)))
5304
5305(provide 'cperl-mode)
5306
5307;;; cperl-mode.el ends here
generated by cgit v1.2.1 (git 2.18.0) at 2026-01-23 16:33:50 +0000