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In some programming languages and styles, a symbol (or every
symbol in a sequence of symbols) might be capitalized, but the
individual words making up the symbol should never be capitalized.
For example, in OCaml, type names Look_like_this and variable names
look_like_this, but it is basically never correct for something to
Look_Like_This. And one might have "aa_bb cc_dd ee_ff" or "Aa_bb
Cc_dd Ee_ff", but never "Aa_Bb Cc_Dd Ee_Ff".
To support this, the new variable 'case-symbols-as-words' causes
symbol constituents to be treated as part of words only for case
operations.
* src/casefiddle.c (case_ch_is_word): New function.
(case_character_impl, case_character): Use 'case_ch_is_word'.
(syms_of_casefiddle): Define 'case-symbols-as-words'.
* src/search.c (Freplace_match): Use 'case-symbols-as-words'
when calculating case pattern.
* test/src/casefiddle-tests.el (casefiddle-tests--check-syms)
(casefiddle-case-symbols-as-words): Test 'case-symbols-as-words'.
* etc/NEWS: Announce 'case-symbols-as-words'.
* doc/lispref/strings.texi (Case Conversion): Document
'case-symbols-as-words'.
(Bug#66614)
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* test/src/process-tests.el (process-test-stderr-filter):
* test/src/print-tests.el (print-tests-continuous-numbering):
* test/src/fns-tests.el (fns-tests-mapconcat):
* test/src/data-tests.el (test-bool-vector-to-hex-string):
* test/src/casefiddle-tests.el (casefiddle-tests-char-properties)
(casefiddle-tests-case-table, casefiddle-tests-casing-character):
* test/lisp/tabify-tests.el (tabify-tests--test-changes):
* test/lisp/subr-tests.el (subr-tests-bug22027):
* test/lisp/sort-tests.el (sort-tests-random-word):
* test/lisp/net/hmac-md5-tests.el (hmac-md5-test-encode-string):
* test/lisp/md4-tests.el (md4-tests-digest->hex):
* test/lisp/emacs-lisp/cl-extra-tests.el (cl-extra-test-map):
* test/lisp/dired-tests.el (dired-test-directory-files):
* test/lisp/char-fold-tests.el (char-fold--random-word):
* test/lisp/ansi-color-tests.el (ansi-color-incomplete-sequences-test):
Remove redundant "" arg to `mapconcat`.
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836be7a112 ; * etc/refcards/ru-refcard.tex: Update Copyright year.
86cbc6ee4a * lisp/net/tramp-sh.el: Adapt copyright year
ebe8772f65 ; Minor fixes related to copyright years
23c1ee6989 ; * test/manual/etags/ETAGS.good_N: Adjust to copyright ye...
8d3fc7ec89 * src/xfaces.c (face_for_font): Make 'hash' be uintptr_t.
19dcb237b5 ; Add 2022 to copyright years.
# Conflicts:
# etc/NEWS
# etc/refcards/ru-refcard.tex
# lib/cdefs.h
# lisp/erc/erc-dcc.el
# lisp/erc/erc-imenu.el
# lisp/erc/erc-replace.el
# lisp/image-dired.el
# lisp/progmodes/xref.el
# m4/alloca.m4
# m4/byteswap.m4
# m4/errno_h.m4
# m4/getopt.m4
# m4/gnulib-common.m4
# m4/inttypes.m4
# m4/stddef_h.m4
# m4/stdint.m4
# m4/sys_socket_h.m4
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* src/casefiddle.c (struct casing_context): Add new slot to keep
track of what the previous operation was.
(case_character_impl): Set it.
(do_casify_unibyte_string): Use it to handle Turkish correctly.
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Run "TZ=UTC0 admin/update-copyright".
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* test/src/casefiddle-tests.el (casefiddle-tests-char-casing):
(upcase ?ß) now returns ?ẞ (U+7838), partly for technical reasons but
the previous behaviour was arbitrary and arguably less useful.
Correct upcasing of ß is normally SS, which is what Fupcase returns if
given a string, or (for special purposes) ẞ.
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Run "TZ=UTC0 admin/update-copyright $(git ls-files)".
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This is a followon fix for Bug#37477.
* lisp/simple.el (region-extract-function):
Use setq here, since the var is now defined in C code.
* src/casefiddle.c (casify_pnc_region): New function.
(Fupcase_region, Fdowncase_region, Fcapitalize_region)
(Fupcase_initials_region): Use it.
(Fupcase_initials_region): Add region-noncontiguous-p flag
for consistency with the others. All uses changed.
(syms_of_casefiddle): Define Qbounds, Vregion_extract_function.
* src/insdel.c (prepare_to_modify_buffer_1):
* src/keyboard.c (command_loop_1):
Use Vregion_extraction_function.
* src/insdel.c (syms_of_insdel): No need to define
Qregion_extract_function.
* test/src/casefiddle-tests.el (casefiddle-oldfunc): New var.
(casefiddle-loopfunc, casefiddle-badfunc): New functions.
(casefiddle-invalid-region-extract-function): New test.
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Run 'TZ=UTC0 admin/update-copyright $(git ls-files)'.
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Run admin/update-copyright.
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Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November. Change these FTP URLs to https://ftp.gnu.org
instead. Make similar changes for URLs to other organizations moving
away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.
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In Greek, a sigma character has two lower case forms which depend on
their position in the word. Implement logic determining it.
* src/casefiddle.c (struct casing_context, case_character_impl): Don’t
assume inword is true when flag is CASE_UP and false when flag is
CASE_DOWN. For final sigma detection we need this information tracked
reliably;.
(CAPITAL_SIGMA, SMALL_SIGMA, SMALL_FINAL_SIGMA): New macros defining
Unicode code point of different forms of sigma letter.
(case_character): Implement support for final sigma casing.
(do_casify_multibyte_string, do_casify_multibyte_region): Update after
changes to case_character.
* test/src/casefiddle-tests.el (casefiddle-tests-casing): Add test
cases for final sigma.
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Implement unconditional special casing rules defined in Unicode standard.
Among other things, they deal with cases when a single code point is
replaced by multiple ones because single character does not exist (e.g.
‘fi’ ligature turning into ‘FL’) or is not commonly used (e.g. ß turning
into SS).
* admin/unidata/SpecialCasing.txt: New data file pulled from Unicode
standard distribution.
* admin/unidata/README: Mention SpecialCasing.txt.
* admin/unidata/unidata-get.el (unidata-gen-table-special-casing,
unidata-gen-table-special-casing--do-load): New functions generating
‘special-uppercase’, ‘special-lowercase’ and ‘special-titlecase’
character Unicode properties built from the SpecialCasing.txt Unicode
data file.
* src/casefiddle.c (struct casing_str_buf): New structure for
representing short strings used to handle one-to-many character
mappings.
(case_character_imlp): New function which can handle one-to-many
character mappings.
(case_character, case_single_character): Wrappers for the above
functions. The former may map one character to multiple (or no)
code points while the latter does what the former used to do (i.e.
handles one-to-one mappings only).
(do_casify_natnum, do_casify_unibyte_string,
do_casify_unibyte_region): Use case_single_character.
(do_casify_multibyte_string, do_casify_multibyte_region): Support new
features of case_character.
* (do_casify_region): Updated to reflact do_casify_multibyte_string
changes.
(casify_word): Handle situation when one character-length of a word
can change affecting where end of the word is.
(upcase, capitalize, upcase-initials): Update documentation to mention
limitations when working on characters.
* test/src/casefiddle-tests.el (casefiddle-tests-char-properties):
Add test cases for the newly introduced character properties.
(casefiddle-tests-casing): Update test cases which are now passing.
* test/lisp/char-fold-tests.el (char-fold--ascii-upcase,
char-fold--ascii-downcase): New functions which behave like old ‘upcase’
and ‘downcase’.
(char-fold--test-match-exactly): Use the new functions. This is needed
because otherwise fi and similar characters are turned into their multi-
-character representation.
* doc/lispref/strings.texi: Describe issue with casing characters versus
strings.
* doc/lispref/nonascii.texi: Describe the new character properties.
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* src/casefiddle.c (struct casing_context, prepare_casing_context): Add
titlecase_char_table member. It’s set to the ‘titlecase’ Unicode
property table if capitalisation has been requested.
(case_character): Make use of the titlecase_char_table to title-case
initial characters when capitalising.
* test/src/casefiddle-tests.el (casefiddle-tests--characters,
casefiddle-tests-casing): Update test cases which are now passing.
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A compatibility digraph characters, such as Dž, are neither upper- nor
lower-case. At the moment however, those are reported as upper-case¹
despite the fact that they change when upper-cased.
Stop checking if a character is upper-case before trying to up-case it
so that title-case characters are handled correctly. This fixes one of
the issues mentioned in bug#24603.
¹ Because they change when converted to lower-case. Notice an asymmetry
in that for a character to be considered lower-case it must not be
upper-case (plus the usual condition of changing when upper-cased).
* src/buffer.h (upcase1): Delete.
(upcase): Change to upcase character unconditionally just like downcase
does it. This is what upcase1 was.
* src/casefiddle.c (casify_object, casify_region): Use upcase instead
of upcase1 and don’t check !uppercasep(x) before calling upcase.
* src/keyboard.c (read_key_sequence): Don’t check if uppercase(x), just
downcase(x) and see if it changed.
* test/src/casefiddle-tests.el (casefiddle-tests--characters,
casefiddle-tests-casing): Update test cases which are now passing.
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Use Unicode data to generate case tables instead of mostly repeating
them in lisp code. Do that in a way which maps ‘Dz’ (and similar)
digraph to ‘dz’ when down- and ‘DZ’ when upcasing.
https://debbugs.gnu.org/cgi/bugreport.cgi?msg=89;bug=24603 lists all
changes to syntax table and case tables introduced by this commit.
* lisp/international/characters.el: Remove case-pairs defined with
explicit Lisp code and instead use Unicode character properties.
* test/src/casefiddle-tests.el (casefiddle-tests--characters,
casefiddle-tests-casing): Update test cases which are now working
as they should.
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Fixes cases marked FIXME upcoming in followup commits.
* test/src/casefiddle-tests.el (casefiddle-tests-char-properties,
casefiddle-tests-case-table, casefiddle-tests-casing-character,
casefiddle-tests-casing, casefiddle-tests-casing-byte8,
casefiddle-tests-casing-byte8-with-changes): New tests.
(casefiddle-tests--test-casing): New helper function for runnig
some of the tests.
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