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authorPaul Eggert2013-07-15 23:39:49 -0700
committerPaul Eggert2013-07-15 23:39:49 -0700
commit6c6f1994bf684f510d600bd18023fa01b4b06500 (patch)
tree04b7125d1327d8419024f28d14bfb384afc52cdd /src/textprop.c
parent8abee653a22b0b879a9376c1dce3e3ca2e2f31d6 (diff)
downloademacs-6c6f1994bf684f510d600bd18023fa01b4b06500.tar.gz
emacs-6c6f1994bf684f510d600bd18023fa01b4b06500.zip
Prefer list1 (X) to Fcons (X, Qnil) when building lists.
This makes the code easier to read and the executable a bit smaller. Do not replace all calls to Fcons that happen to create lists, just calls that are intended to create lists. For example, when creating an alist that maps FOO to nil, use list1 (Fcons (FOO, Qnil)) rather than list1 (list1 (FOO)) or Fcons (Fcons (FOO, Qnil), Qnil). Similarly for list2 through list5. * buffer.c (Fget_buffer_create, Fmake_indirect_buffer): * bytecode.c (exec_byte_code): * callint.c (quotify_arg, Fcall_interactively): * callproc.c (Fcall_process, create_temp_file): * charset.c (load_charset_map_from_file) (Fdefine_charset_internal, init_charset): * coding.c (get_translation_table, detect_coding_system) (Fcheck_coding_systems_region) (Fset_terminal_coding_system_internal) (Fdefine_coding_system_internal, Fdefine_coding_system_alias): * composite.c (update_compositions, Ffind_composition_internal): * dired.c (directory_files_internal, file_name_completion) (Fsystem_users): * dispnew.c (Fopen_termscript, bitch_at_user, init_display): * doc.c (Fsnarf_documentation): * editfns.c (Fmessage_box): * emacs.c (main): * eval.c (do_debug_on_call, signal_error, maybe_call_debugger) (Feval, eval_sub, Ffuncall, apply_lambda): * fileio.c (make_temp_name, Fcopy_file, Faccess_file) (Fset_file_selinux_context, Fset_file_acl, Fset_file_modes) (Fset_file_times, Finsert_file_contents) (Fchoose_write_coding_system, Fwrite_region): * fns.c (Flax_plist_put, Fyes_or_no_p, syms_of_fns): * font.c (font_registry_charsets, font_parse_fcname) (font_prepare_cache, font_update_drivers, Flist_fonts): * fontset.c (Fset_fontset_font, Ffontset_info, syms_of_fontset): * frame.c (make_frame, Fmake_terminal_frame) (x_set_frame_parameters, x_report_frame_params) (x_default_parameter, Fx_parse_geometry): * ftfont.c (syms_of_ftfont): * image.c (gif_load): * keyboard.c (command_loop_1): * keymap.c (Fmake_keymap, Fmake_sparse_keymap, access_keymap_1) (Fcopy_keymap, append_key, Fcurrent_active_maps) (Fminor_mode_key_binding, accessible_keymaps_1) (Faccessible_keymaps, Fwhere_is_internal): * lread.c (read_emacs_mule_char): * menu.c (find_and_return_menu_selection): * minibuf.c (get_minibuffer): * nsfns.m (Fns_perform_service): * nsfont.m (ns_script_to_charset): * nsmenu.m (ns_popup_dialog): * nsselect.m (ns_get_local_selection, ns_string_from_pasteboard) (Fx_own_selection_internal): * nsterm.m (append2): * print.c (Fredirect_debugging_output) (print_prune_string_charset): * process.c (Fdelete_process, Fprocess_contact) (Fformat_network_address, set_socket_option) (read_and_dispose_of_process_output, write_queue_push) (send_process, exec_sentinel): * sound.c (Fplay_sound_internal): * textprop.c (validate_plist, add_properties) (Fput_text_property, Fadd_face_text_property) (copy_text_properties, text_property_list, syms_of_textprop): * unexaix.c (report_error): * unexcoff.c (report_error): * unexsol.c (unexec): * xdisp.c (redisplay_tool_bar, store_mode_line_string) (Fformat_mode_line, syms_of_xdisp): * xfaces.c (set_font_frame_param) (Finternal_lisp_face_attribute_values) (Finternal_merge_in_global_face, syms_of_xfaces): * xfns.c (x_default_scroll_bar_color_parameter) (x_default_font_parameter, x_create_tip_frame): * xfont.c (xfont_supported_scripts): * xmenu.c (Fx_popup_dialog, xmenu_show, xdialog_show) (menu_help_callback, xmenu_show): * xml.c (make_dom): * xterm.c (set_wm_state): Prefer list1 (FOO) to Fcons (FOO, Qnil) when creating a list, and similarly for list2 through list5.
Diffstat (limited to 'src/textprop.c')
-rw-r--r--src/textprop.c42
1 files changed, 17 insertions, 25 deletions
diff --git a/src/textprop.c b/src/textprop.c
index e5d4fe06c60..282ae11d4ac 100644
--- a/src/textprop.c
+++ b/src/textprop.c
@@ -226,7 +226,7 @@ validate_plist (Lisp_Object list)
226 return list; 226 return list;
227 } 227 }
228 228
229 return Fcons (list, Fcons (Qnil, Qnil)); 229 return list2 (list, Qnil);
230} 230}
231 231
232/* Return true if interval I has all the properties, 232/* Return true if interval I has all the properties,
@@ -436,16 +436,14 @@ add_properties (Lisp_Object plist, INTERVAL i, Lisp_Object object,
436 if (set_type == TEXT_PROPERTY_PREPEND) 436 if (set_type == TEXT_PROPERTY_PREPEND)
437 Fsetcar (this_cdr, Fcons (val1, Fcar (this_cdr))); 437 Fsetcar (this_cdr, Fcons (val1, Fcar (this_cdr)));
438 else 438 else
439 nconc2 (Fcar (this_cdr), Fcons (val1, Qnil)); 439 nconc2 (Fcar (this_cdr), list1 (val1));
440 else { 440 else {
441 /* The previous value is a single value, so make it 441 /* The previous value is a single value, so make it
442 into a list. */ 442 into a list. */
443 if (set_type == TEXT_PROPERTY_PREPEND) 443 if (set_type == TEXT_PROPERTY_PREPEND)
444 Fsetcar (this_cdr, 444 Fsetcar (this_cdr, list2 (val1, Fcar (this_cdr)));
445 Fcons (val1, Fcons (Fcar (this_cdr), Qnil)));
446 else 445 else
447 Fsetcar (this_cdr, 446 Fsetcar (this_cdr, list2 (Fcar (this_cdr), val1));
448 Fcons (Fcar (this_cdr), Fcons (val1, Qnil)));
449 } 447 }
450 } 448 }
451 changed = 1; 449 changed = 1;
@@ -1308,9 +1306,7 @@ the current buffer), START and END are buffer positions (integers or
1308markers). If OBJECT is a string, START and END are 0-based indices into it. */) 1306markers). If OBJECT is a string, START and END are 0-based indices into it. */)
1309 (Lisp_Object start, Lisp_Object end, Lisp_Object property, Lisp_Object value, Lisp_Object object) 1307 (Lisp_Object start, Lisp_Object end, Lisp_Object property, Lisp_Object value, Lisp_Object object)
1310{ 1308{
1311 Fadd_text_properties (start, end, 1309 Fadd_text_properties (start, end, list2 (property, value), object);
1312 Fcons (property, Fcons (value, Qnil)),
1313 object);
1314 return Qnil; 1310 return Qnil;
1315} 1311}
1316 1312
@@ -1344,11 +1340,10 @@ into it. */)
1344 (Lisp_Object start, Lisp_Object end, Lisp_Object face, 1340 (Lisp_Object start, Lisp_Object end, Lisp_Object face,
1345 Lisp_Object appendp, Lisp_Object object) 1341 Lisp_Object appendp, Lisp_Object object)
1346{ 1342{
1347 add_text_properties_1 (start, end, 1343 add_text_properties_1 (start, end, list2 (Qface, face), object,
1348 Fcons (Qface, Fcons (face, Qnil)), 1344 (NILP (appendp)
1349 object, 1345 ? TEXT_PROPERTY_PREPEND
1350 NILP (appendp)? TEXT_PROPERTY_PREPEND: 1346 : TEXT_PROPERTY_APPEND));
1351 TEXT_PROPERTY_APPEND);
1352 return Qnil; 1347 return Qnil;
1353} 1348}
1354 1349
@@ -1929,7 +1924,7 @@ copy_text_properties (Lisp_Object start, Lisp_Object end, Lisp_Object src, Lisp_
1929 { 1924 {
1930 if (EQ (Fcar (plist), prop)) 1925 if (EQ (Fcar (plist), prop))
1931 { 1926 {
1932 plist = Fcons (prop, Fcons (Fcar (Fcdr (plist)), Qnil)); 1927 plist = list2 (prop, Fcar (Fcdr (plist)));
1933 break; 1928 break;
1934 } 1929 }
1935 plist = Fcdr (Fcdr (plist)); 1930 plist = Fcdr (Fcdr (plist));
@@ -1938,10 +1933,8 @@ copy_text_properties (Lisp_Object start, Lisp_Object end, Lisp_Object src, Lisp_
1938 { 1933 {
1939 /* Must defer modifications to the interval tree in case src 1934 /* Must defer modifications to the interval tree in case src
1940 and dest refer to the same string or buffer. */ 1935 and dest refer to the same string or buffer. */
1941 stuff = Fcons (Fcons (make_number (p), 1936 stuff = Fcons (list3 (make_number (p), make_number (p + len), plist),
1942 Fcons (make_number (p + len), 1937 stuff);
1943 Fcons (plist, Qnil))),
1944 stuff);
1945 } 1938 }
1946 1939
1947 i = next_interval (i); 1940 i = next_interval (i);
@@ -2007,14 +2000,13 @@ text_property_list (Lisp_Object object, Lisp_Object start, Lisp_Object end, Lisp
2007 for (; CONSP (plist); plist = Fcdr (XCDR (plist))) 2000 for (; CONSP (plist); plist = Fcdr (XCDR (plist)))
2008 if (EQ (XCAR (plist), prop)) 2001 if (EQ (XCAR (plist), prop))
2009 { 2002 {
2010 plist = Fcons (prop, Fcons (Fcar (XCDR (plist)), Qnil)); 2003 plist = list2 (prop, Fcar (XCDR (plist)));
2011 break; 2004 break;
2012 } 2005 }
2013 2006
2014 if (!NILP (plist)) 2007 if (!NILP (plist))
2015 result = Fcons (Fcons (make_number (s), 2008 result = Fcons (list3 (make_number (s), make_number (s + len),
2016 Fcons (make_number (s + len), 2009 plist),
2017 Fcons (plist, Qnil))),
2018 result); 2010 result);
2019 2011
2020 i = next_interval (i); 2012 i = next_interval (i);
@@ -2343,8 +2335,8 @@ inherits it if NONSTICKINESS is nil. The `front-sticky' and
2343 /* Text properties `syntax-table'and `display' should be nonsticky 2335 /* Text properties `syntax-table'and `display' should be nonsticky
2344 by default. */ 2336 by default. */
2345 Vtext_property_default_nonsticky 2337 Vtext_property_default_nonsticky
2346 = Fcons (Fcons (intern_c_string ("syntax-table"), Qt), 2338 = list2 (Fcons (intern_c_string ("syntax-table"), Qt),
2347 Fcons (Fcons (intern_c_string ("display"), Qt), Qnil)); 2339 Fcons (intern_c_string ("display"), Qt));
2348 2340
2349 staticpro (&interval_insert_behind_hooks); 2341 staticpro (&interval_insert_behind_hooks);
2350 staticpro (&interval_insert_in_front_hooks); 2342 staticpro (&interval_insert_in_front_hooks);