annotate src/specifier.h @ 826:6728e641994e

[xemacs-hg @ 2002-05-05 11:30:15 by ben] syntax cache, 8-bit-format, lots of code cleanup README.packages: Update info about --package-path. i.c: Create an inheritable event and pass it on to XEmacs, so that ^C can be handled properly. Intercept ^C and signal the event. "Stop Build" in VC++ now works. bytecomp-runtime.el: Doc string changes. compat.el: Some attempts to redo this to make it truly useful and fix the "multiple versions interacting with each other" problem. Not yet done. Currently doesn't work. files.el: Use with-obsolete-variable to avoid warnings in new revert-buffer code. xemacs.mak: Split up CFLAGS into a version without flags specifying the C library. The problem seems to be that minitar depends on zlib, which depends specifically on libc.lib, not on any of the other C libraries. Unless you compile with libc.lib, you get errors -- specifically, no _errno in the other libraries, which must make it something other than an int. (#### But this doesn't seem to obtain in XEmacs, which also uses zlib, and can be linked with any of the C libraries. Maybe zlib is used differently and doesn't need errno, or maybe XEmacs provides an int errno; ... I don't understand. Makefile.in.in: Fix so that packages are around when testing. abbrev.c, alloc.c, buffer.c, buffer.h, bytecode.c, callint.c, casefiddle.c, casetab.c, casetab.h, charset.h, chartab.c, chartab.h, cmds.c, console-msw.h, console-stream.c, console-x.c, console.c, console.h, data.c, device-msw.c, device.c, device.h, dialog-msw.c, dialog-x.c, dired-msw.c, dired.c, doc.c, doprnt.c, dumper.c, editfns.c, elhash.c, emacs.c, eval.c, event-Xt.c, event-gtk.c, event-msw.c, event-stream.c, events.c, events.h, extents.c, extents.h, faces.c, file-coding.c, file-coding.h, fileio.c, fns.c, font-lock.c, frame-gtk.c, frame-msw.c, frame-x.c, frame.c, frame.h, glade.c, glyphs-gtk.c, glyphs-msw.c, glyphs-msw.h, glyphs-x.c, glyphs.c, glyphs.h, gui-msw.c, gui-x.c, gui.h, gutter.h, hash.h, indent.c, insdel.c, intl-win32.c, intl.c, keymap.c, lisp-disunion.h, lisp-union.h, lisp.h, lread.c, lrecord.h, lstream.c, lstream.h, marker.c, menubar-gtk.c, menubar-msw.c, menubar-x.c, menubar.c, minibuf.c, mule-ccl.c, mule-charset.c, mule-coding.c, mule-wnnfns.c, nas.c, objects-msw.c, objects-x.c, opaque.c, postgresql.c, print.c, process-nt.c, process-unix.c, process.c, process.h, profile.c, rangetab.c, redisplay-gtk.c, redisplay-msw.c, redisplay-output.c, redisplay-x.c, redisplay.c, redisplay.h, regex.c, regex.h, scrollbar-msw.c, search.c, select-x.c, specifier.c, specifier.h, symbols.c, symsinit.h, syntax.c, syntax.h, syswindows.h, tests.c, text.c, text.h, tooltalk.c, ui-byhand.c, ui-gtk.c, unicode.c, win32.c, window.c: Another big Ben patch. -- FUNCTIONALITY CHANGES: add partial support for 8-bit-fixed, 16-bit-fixed, and 32-bit-fixed formats. not quite done yet. (in particular, needs functions to actually convert the buffer.) NOTE: lots of changes to regex.c here. also, many new *_fmt() inline funs that take an Internal_Format argument. redo syntax cache code. make the cache per-buffer; keep the cache valid across calls to functions that use it. also keep it valid across insertions/deletions and extent changes, as much as is possible. eliminate the junky regex-reentrancy code by passing in the relevant lisp info to the regex routines as local vars. add general mechanism in extents code for signalling extent changes. fix numerous problems with the case-table implementation; yoshiki never properly transferred many algorithms from old-style to new-style case tables. redo char tables to support a default argument, so that mapping only occurs over changed args. change many chartab functions to accept Lisp_Object instead of Lisp_Char_Table *. comment out the code in font-lock.c by default, because font-lock.el no longer uses it. we should consider eliminating it entirely. Don't output bell as ^G in console-stream when not a TTY. add -mswindows-termination-handle to interface with i.c, so we can properly kill a build. add more error-checking to buffer/string macros. add some additional buffer_or_string_() funs. -- INTERFACE CHANGES AFFECTING MORE CODE: switch the arguments of write_c_string and friends to be consistent with write_fmt_string, which must have printcharfun first. change BI_* macros to BYTE_* for increased clarity; similarly for bi_* local vars. change VOID_TO_LISP to be a one-argument function. eliminate no-longer-needed CVOID_TO_LISP. -- char/string macro changes: rename MAKE_CHAR() to make_emchar() for slightly less confusion with make_char(). (The former generates an Emchar, the latter a Lisp object. Conceivably we should rename make_char() -> wrap_char() and similarly for make_int(), make_float().) Similar changes for other *CHAR* macros -- we now consistently use names with `emchar' whenever we are working with Emchars. Any remaining name with just `char' always refers to a Lisp object. rename macros with XSTRING_* to string_* except for those that reference actual fields in the Lisp_String object, following conventions used elsewhere. rename set_string_{data,length} macros (the only ones to work with a Lisp_String_* instead of a Lisp_Object) to set_lispstringp_* to make the difference clear. try to be consistent about caps vs. lowercase in macro/inline-fun names for chars and such, which wasn't the case before. we now reserve caps either for XFOO_ macros that reference object fields (e.g. XSTRING_DATA) or for things that have non-function semantics, e.g. directly modifying an arg (BREAKUP_EMCHAR) or evaluating an arg (any arg) more than once. otherwise, use lowercase. here is a summary of most of the macros/inline funs changed by all of the above changes: BYTE_*_P -> byte_*_p XSTRING_BYTE -> string_byte set_string_data/length -> set_lispstringp_data/length XSTRING_CHAR_LENGTH -> string_char_length XSTRING_CHAR -> string_emchar INTBYTE_FIRST_BYTE_P -> intbyte_first_byte_p INTBYTE_LEADING_BYTE_P -> intbyte_leading_byte_p charptr_copy_char -> charptr_copy_emchar LEADING_BYTE_* -> leading_byte_* CHAR_* -> EMCHAR_* *_CHAR_* -> *_EMCHAR_* *_CHAR -> *_EMCHAR CHARSET_BY_ -> charset_by_* BYTE_SHIFT_JIS* -> byte_shift_jis* BYTE_BIG5* -> byte_big5* REP_BYTES_BY_FIRST_BYTE -> rep_bytes_by_first_byte char_to_unicode -> emchar_to_unicode valid_char_p -> valid_emchar_p Change intbyte_strcmp -> qxestrcmp_c (duplicated functionality). -- INTERFACE CHANGES AFFECTING LESS CODE: use DECLARE_INLINE_HEADER in various places. remove '#ifdef emacs' from XEmacs-only files. eliminate CHAR_TABLE_VALUE(), which duplicated the functionality of get_char_table(). add BUFFER_TEXT_LOOP to simplify iterations over buffer text. define typedefs for signed and unsigned types of fixed sizes (INT_32_BIT, UINT_32_BIT, etc.). create ALIGN_FOR_TYPE as a higher-level interface onto ALIGN_SIZE; fix code to use it. add charptr_emchar_len to return the text length of the character pointed to by a ptr; use it in place of charcount_to_bytecount(..., 1). add emchar_len to return the text length of a given character. add types Bytexpos and Charxpos to generalize Bytebpos/Bytecount and Charbpos/Charcount, in code (particularly, the extents code and redisplay code) that works with either kind of index. rename redisplay struct params with names such as `charbpos' to e.g. `charpos' when they are e.g. a Charxpos, not a Charbpos. eliminate xxDEFUN in place of DEFUN; no longer necessary with changes awhile back to doc.c. split up big ugly combined list of EXFUNs in lisp.h on a file-by-file basis, since other prototypes are similarly split. rewrite some "*_UNSAFE" macros as inline funs and eliminate the _UNSAFE suffix. move most string code from lisp.h to text.h; the string code and text.h code is now intertwined in such a fashion that they need to be in the same place and partially interleaved. (you can't create forward references for inline funs) automated/lisp-tests.el, automated/symbol-tests.el, automated/test-harness.el: Fix test harness to output FAIL messages to stderr when in batch mode. Fix up some problems in lisp-tests/symbol-tests that were causing spurious failures.
author ben
date Sun, 05 May 2002 11:33:57 +0000
parents a5954632b187
children e22b0213b713
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1 /* Generic specifier list implementation
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2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
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3 Copyright (C) 1995, 1996, 2002 Ben Wing
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: Not in FSF. */
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23
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24 #ifndef INCLUDED_specifier_h_
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25 #define INCLUDED_specifier_h_
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27 /*
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28 MAGIC SPECIFIERS
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29 ================
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30
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31 Magic specifiers are used to provide fallback values for window
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32 system provided specifications, reflecting user preferences on the
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33 window system, such as default fonts, colors, scrollbar thickness
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34 etc.
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35
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36 A magic specifier consists of two specifier objects. The first one
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37 behaves like a normal specifier in all senses. The second one, a
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38 ghost specifier, is a fallback value for the first one, and contains
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39 values provided by window system, resources etc. which reflect
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40 default settings for values being specified.
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41
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42 A magic specifier has an "ultimate" fallback value, as any usual
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43 specifier does. This value, an inst-list, is stored in the fallback
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44 slot of the ghost specifier object.
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45
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46 Ghost specifiers have the following properties:
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47 - Have back pointers to their parent specifiers.
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48 - Do not have instance data. Instead, they share parent's instance
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49 data.
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50 - Have the same methods structure pointer.
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51 - Share parent's caching scheme.
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52 - Store fallback value instead of their parents.
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53
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54 Ghost specifiers normally are not modifiable at the lisp level, and
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55 only used to supply fallback instance values. They are accessible
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56 via (specifier-fallback), but are read-only. Although, under
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57 certain rare conditions, modification of ghost objects is allowed.
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58 This behavior is controlled by the global variable
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59 Vunlock_ghost_specifiers. It is not exposed to lisp, and is set
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60 during calls to lisp functions which initialize global, device and
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61 frame defaults, such as
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62 init-{global,frame,device}-{faces,toolbars,etc}.
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63
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64 Thus, values supplied by resources or other means of a window system
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65 stored in externally unmodifiable ghost objects. Regular lisp code
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66 may thus freely modify the normal part of a magic specifier, and
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67 removing a specification for a particular domain causes the
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68 specification to consider ghost-provided fallback values, or its own
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69 fallback value.
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70
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71 Rules of conduct for magic specifiers
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72 -------------------------------------
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73 1. recompute_*() functions always operate on the whole specifier
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74 when passed only a ghost object, by substituting it with their
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75 parent bodily object.
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76 2. All specifier methods, except for instantiate method, are passed
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77 the bodily object of the magic specifier. Instantiate method is
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78 passed the specifier being instantiated.
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79 3. Only bodily objects are passed to set_specifier_caching function,
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80 and only these may be cached.
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81 4. All specifiers are added to Vall_specifiers list, both bodily and
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82 ghost. The pair of objects is always removed from the list at the
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83 same time.
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84 */
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85
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86 extern const struct struct_description specifier_methods_description;
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87
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88 struct specifier_methods
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89 {
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90 const char *name;
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91 Lisp_Object predicate_symbol;
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92
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93 /* Implementation specific methods: */
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94
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95 /* Create method: Initialize specifier data. Optional. */
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96 void (*create_method) (Lisp_Object specifier);
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97
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98 /* Mark method: Mark any lisp object within specifier data
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99 structure. Not required if no specifier data are Lisp_Objects. */
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100 void (*mark_method) (Lisp_Object specifier);
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101
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102 /* Equal method: Compare two specifiers. This is called after
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103 ensuring that the two specifiers are of the same type, and have
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104 the same specs. Quit is inhibited during the call so it is safe
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105 to call internal_equal().
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106
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107 If this function is not present, specifiers considered equal when
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108 the above conditions are met, i.e. as if the method returned
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109 non-zero. */
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110 int (*equal_method) (Lisp_Object sp1, Lisp_Object sp2, int depth);
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111
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112 /* Hash method: Hash specifier instance data. This has to hash only
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113 data structure of the specifier, as specs are hashed by the core
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114 code.
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115
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116 If this function is not present, hashing behaves as if it
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117 returned zero. */
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118 unsigned long (*hash_method) (Lisp_Object specifier, int depth);
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119
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120 /* Validate method: Given an instantiator, verify that it's
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121 valid for this specifier type. If not, signal an error.
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122
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123 If this function is not present, all instantiators are considered
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124 valid. */
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125 void (*validate_method) (Lisp_Object instantiator);
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126
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127
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128 /* Copy method: Given an instantiator, copy the bits that we need to
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129 for this specifier type.
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130
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131 If this function is not present, then Fcopy_tree is used. */
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132 Lisp_Object (*copy_instantiator_method) (Lisp_Object instantiator);
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133
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134 /* Validate-matchspec method: Given a matchspec, verify that it's
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135 valid for this specifier type. If not, signal an error.
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136
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137 If this function is not present, *no* matchspecs are considered
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138 valid. Note that this differs from validate_method(). */
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139 void (*validate_matchspec_method) (Lisp_Object matchspec);
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140
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141 /* Instantiate method: Return SPECIFIER instance in DOMAIN,
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142 specified by INSTANTIATOR. MATCHSPEC specifies an additional
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143 constraints on the instance value (see the docstring for
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144 Fspecifier_matching_instance function). MATCHSPEC is passed
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145 Qunbound when no matching constraints are imposed. The method is
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146 called via call_with_suspended_errors(), so allowed to eval
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147 safely.
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148
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149 DEPTH is a lisp integer denoting current depth of instantiation
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150 calls. This parameter should be passed as the initial depth value
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151 to functions which also instantiate specifiers (of which I can
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152 name specifier_instance) to avoid creating "external"
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153 specification loops.
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154
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155 This method must presume that both INSTANTIATOR and MATCHSPEC are
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156 already validated by the corresponding validate_* methods, and
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157 may abort if they are invalid.
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158
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159 Return value is an instance, which is returned immediately to the
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160 caller, or Qunbound to continue instantiation lookup chain.
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161
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162 If this function is not present, INSTANTIATOR is used as the
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163 specifier instance. This is the usual case for "simple"
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164 specifiers, like integer and boolean. */
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165 Lisp_Object (*instantiate_method) (Lisp_Object specifier,
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166 Lisp_Object matchspec,
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167 Lisp_Object domain,
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168 Lisp_Object instantiator,
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169 Lisp_Object depth);
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170
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171 /* Going-to-add method: Called when an instantiator is about
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172 to be added to a specifier. This function can specify
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173 that different instantiators should be used instead by
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174 returning an inst-list (possibly containing zero elements).
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175 If the instantiator is fine as-is, return Qt. The
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176 instantiator has been copied with copy-tree, so feel
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177 free to reuse parts of it to create a new instantiator.
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178 The tag-set, however, is not copied and is not canonicalized
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179 (that will be done on the result of this function). */
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180 Lisp_Object (*going_to_add_method) (Lisp_Object specifier,
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181 Lisp_Object locale,
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182 Lisp_Object tag_set,
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183 Lisp_Object instantiator);
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184
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185 /* After-change method: Called when the SPECIFIER has just been
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186 changed in LOCALE. The method is called upon:
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187 * Removing and adding specs to/from the specifier;
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188 * Changing the specifier fallback.
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189
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190 #### The method may have called more than once per each specifier
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191 change.
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192
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193 #### Do not still know if this can safely eval. */
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194 void (*after_change_method) (Lisp_Object specifier,
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195 Lisp_Object locale);
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196
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197 /* Specifier extra data: Specifier objects can have extra data,
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198 specific to the type of specifier, stored at the end of the
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199 object. To have this, a specifier declares a structure of type
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200 `struct TYPE_specifier' containing the data and uses
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201 INITIALIZE_SPECIFIER_TYPE_WITH_DATA instead of
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202 INITIALIZE_SPECIFIER_TYPE. Then, a pointer to the `struct
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203 TYPE_specifier' can be obtained from a specifier object using
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204 SPECIFIER_TYPE_DATA. */
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205
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206 /* Pdump description of the extra data; required, and must be named
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207 TYPE_specifier_description. Initialized when
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208 INITIALIZE_SPECIFIER_TYPE_WITH_DATA is called. */
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209 const struct lrecord_description *extra_description;
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210
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211 /* Size of extra data structure; initialized when
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212 INITIALIZE_SPECIFIER_TYPE_WITH_DATA is called. */
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213 int extra_data_size;
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214 };
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215
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216 struct Lisp_Specifier
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217 {
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218 struct lcrecord_header header;
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219 struct specifier_methods *methods;
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220
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221 /* we keep a chained list of all current specifiers, for GC cleanup
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222 purposes. Do NOT mark through this, or specifiers will never
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223 be GC'd. */
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224 Lisp_Object next_specifier;
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225
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226 /* This is a straight list of instantiators. */
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227 Lisp_Object global_specs;
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228
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229 /* These are all assoc lists where the key is the type of object the
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230 list represents (buffer, window, etc.) and the associated list is
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231 the actual list of instantiators. */
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232 Lisp_Object device_specs;
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233 Lisp_Object frame_specs;
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234 /* window_specs is actually a key-assoc weak list. See specifier.c
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235 for an explanation of why (it boils down to the fact that
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236 dead windows can become live again through window configurations).
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237 */
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238 Lisp_Object window_specs;
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239 Lisp_Object buffer_specs;
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240
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241 struct specifier_caching *caching;
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242
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243 /* This can be either nil, for a plain, non-magic specifier object,
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244 t for the normal part of the magic specifier, or #<specifier> for
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245 the ghost part of the magic specifier, a pointer to its parent
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246 object */
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247 Lisp_Object magic_parent;
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248
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249 /* Fallback value. For magic specifiers, it is a pointer to the ghost. */
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250 Lisp_Object fallback;
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251
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252 /* type-specific extra data attached to a specifier */
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253 max_align_t data[1];
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254 };
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255 typedef struct Lisp_Specifier Lisp_Specifier;
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256
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257 DECLARE_LRECORD (specifier, Lisp_Specifier);
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258 #define XSPECIFIER(x) XRECORD (x, specifier, Lisp_Specifier)
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259 #define wrap_specifier(p) wrap_record (p, specifier)
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260 #define SPECIFIERP(x) RECORDP (x, specifier)
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261 #define CHECK_SPECIFIER(x) CHECK_RECORD (x, specifier)
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262 #define CONCHECK_SPECIFIER(x) CONCHECK_RECORD (x, specifier)
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263
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264 /***** Calling a specifier method *****/
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265
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266 #define RAW_SPECMETH(sp, m) ((sp)->methods->m##_method)
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267 #define HAS_SPECMETH_P(sp, m) (!!RAW_SPECMETH (sp, m))
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268 #define SPECMETH(sp, m, args) (((sp)->methods->m##_method) args)
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269
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270 /* Call a void-returning specifier method, if it exists. */
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271 #define MAYBE_SPECMETH(sp, m, args) do { \
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272 Lisp_Specifier *maybe_specmeth_sp = (sp); \
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273 if (HAS_SPECMETH_P (maybe_specmeth_sp, m)) \
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274 SPECMETH (maybe_specmeth_sp, m, args); \
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275 } while (0)
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276
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277 /***** Defining new specifier types *****/
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278
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279 #define specifier_data_offset offsetof (Lisp_Specifier, data)
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280 extern const struct lrecord_description specifier_empty_extra_description[];
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281
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282 #ifdef ERROR_CHECK_TYPES
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283 #define DECLARE_SPECIFIER_TYPE(type) \
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284 extern struct specifier_methods * type##_specifier_methods; \
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285 DECLARE_INLINE_HEADER ( \
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286 struct type##_specifier * \
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287 error_check_##type##_specifier_data (Lisp_Specifier *sp) \
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288 ) \
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289 { \
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290 if (SPECIFIERP (sp->magic_parent)) \
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291 { \
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292 assert (SPECIFIER_TYPE_P (sp, type)); \
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293 sp = XSPECIFIER (sp->magic_parent); \
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294 } \
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295 else \
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296 assert (NILP (sp->magic_parent) || EQ (sp->magic_parent, Qt)); \
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297 assert (SPECIFIER_TYPE_P (sp, type)); \
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298 return (struct type##_specifier *) sp->data; \
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299 } \
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300 DECLARE_INLINE_HEADER ( \
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301 Lisp_Specifier * \
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302 error_check_##type##_specifier_type (Lisp_Object obj) \
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303 ) \
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304 { \
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305 Lisp_Specifier *sp = XSPECIFIER (obj); \
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306 assert (SPECIFIER_TYPE_P (sp, type)); \
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307 return sp; \
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308 } \
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309 DECLARE_NOTHING
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310 #else
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311 #define DECLARE_SPECIFIER_TYPE(type) \
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312 extern struct specifier_methods * type##_specifier_methods
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313 #endif /* ERROR_CHECK_TYPES */
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314
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315 #define DEFINE_SPECIFIER_TYPE(type) \
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316 struct specifier_methods * type##_specifier_methods
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317
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318 #define INITIALIZE_SPECIFIER_TYPE(type, obj_name, pred_sym) do { \
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319 type##_specifier_methods = xnew_and_zero (struct specifier_methods); \
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320 type##_specifier_methods->name = obj_name; \
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321 type##_specifier_methods->extra_description = \
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322 specifier_empty_extra_description; \
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323 defsymbol_nodump (&type##_specifier_methods->predicate_symbol, pred_sym); \
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324 add_entry_to_specifier_type_list (Q##type, type##_specifier_methods); \
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325 dump_add_root_struct_ptr (&type##_specifier_methods, \
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326 &specifier_methods_description); \
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327 } while (0)
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328
442
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329 #define REINITIALIZE_SPECIFIER_TYPE(type) do { \
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330 staticpro_nodump (&type##_specifier_methods->predicate_symbol); \
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331 } while (0)
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332
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333 #define INITIALIZE_SPECIFIER_TYPE_WITH_DATA(type, obj_name, pred_sym) \
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334 do { \
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335 INITIALIZE_SPECIFIER_TYPE (type, obj_name, pred_sym); \
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336 type##_specifier_methods->extra_data_size = \
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337 sizeof (struct type##_specifier); \
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338 type##_specifier_methods->extra_description = \
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339 type##_specifier_description; \
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340 } while (0)
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341
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342 /* Declare that specifier-type TYPE has method METH; used in
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343 initialization routines */
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344 #define SPECIFIER_HAS_METHOD(type, meth) \
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345 (type##_specifier_methods->meth##_method = type##_##meth)
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346
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347 /***** Macros for accessing specifier types *****/
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348
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349 #define SPECIFIER_TYPE_P(sp, type) \
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350 ((sp)->methods == type##_specifier_methods)
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351
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352 /* Any of the two of the magic spec */
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353 #define MAGIC_SPECIFIER_P(sp) (!NILP((sp)->magic_parent))
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354 /* Normal part of the magic specifier */
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355 #define BODILY_SPECIFIER_P(sp) EQ ((sp)->magic_parent, Qt)
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356 /* Ghost part of the magic specifier */
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357 #define GHOST_SPECIFIER_P(sp) SPECIFIERP((sp)->magic_parent)
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358
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359 #define GHOST_SPECIFIER(sp) XSPECIFIER ((sp)->fallback)
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360
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361 #ifdef ERROR_CHECK_TYPES
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362 # define SPECIFIER_TYPE_DATA(sp, type) \
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363 error_check_##type##_specifier_data (sp)
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364 #else
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365 # define SPECIFIER_TYPE_DATA(sp, type) \
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366 ((struct type##_specifier *) \
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367 (GHOST_SPECIFIER_P(sp) \
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368 ? XSPECIFIER((sp)->magic_parent)->data \
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369 : (sp)->data))
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370 #endif
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371
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372 #ifdef ERROR_CHECK_TYPES
438
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373 # define XSPECIFIER_TYPE(x, type) \
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374 error_check_##type##_specifier_type (x)
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375 #else
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376 # define XSPECIFIER_TYPE(x, type) XSPECIFIER (x)
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377 #endif /* ERROR_CHECK_TYPES */
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378
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379 #define SPECIFIER_TYPEP(x, type) \
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380 (SPECIFIERP (x) && SPECIFIER_TYPE_P (XSPECIFIER (x), type))
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381 #define CHECK_SPECIFIER_TYPE(x, type) do { \
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382 CHECK_SPECIFIER (x); \
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383 if (!SPECIFIER_TYPE_P (XSPECIFIER (x), type)) \
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384 dead_wrong_type_argument \
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385 (type##_specifier_methods->predicate_symbol, x); \
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386 } while (0)
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387 #define CONCHECK_SPECIFIER_TYPE(x, type) do { \
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388 CONCHECK_SPECIFIER (x); \
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389 if (!(SPECIFIER_TYPEP (x, type))) \
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390 x = wrong_type_argument \
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391 (type##_specifier_methods->predicate_symbol, x); \
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392 } while (0)
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393
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394 /***** Miscellaneous structures *****/
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395
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396 enum spec_locale_type
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397 {
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398 LOCALE_GLOBAL,
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399 LOCALE_DEVICE,
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400 LOCALE_FRAME,
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401 LOCALE_WINDOW,
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402 LOCALE_BUFFER
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403 };
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404
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405 enum spec_add_meth
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406 {
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407 SPEC_PREPEND,
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408 SPEC_APPEND,
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409 SPEC_REMOVE_TAG_SET_PREPEND,
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410 SPEC_REMOVE_TAG_SET_APPEND,
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411 SPEC_REMOVE_LOCALE,
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412 SPEC_REMOVE_LOCALE_TYPE,
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413 SPEC_REMOVE_ALL
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414 };
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415
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416 struct specifier_caching
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417 {
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418 int offset_into_struct_window;
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419 void (*value_changed_in_window) (Lisp_Object specifier, struct window *w,
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420 Lisp_Object oldval);
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421 int offset_into_struct_frame;
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422 void (*value_changed_in_frame) (Lisp_Object specifier, struct frame *f,
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423 Lisp_Object oldval);
444
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424 int always_recompute;
428
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425 };
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426
442
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427 /* #### get image instances out of domains! */
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428
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429 /* #### I think the following should abort() rather than return nil
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430 when an invalid domain is given; much more likely we'll catch design
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431 errors early. --ben */
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432
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433 /* This turns out to be used heavily so we make it a macro to make it
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434 inline. Also, the majority of the time the object will turn out to
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435 be a window so we move it from being checked last to being checked
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436 first. */
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437 #define DOMAIN_DEVICE(obj) \
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438 (WINDOWP (obj) ? WINDOW_DEVICE (XWINDOW (obj)) \
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439 : (FRAMEP (obj) ? FRAME_DEVICE (XFRAME (obj)) \
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440 : (DEVICEP (obj) ? obj \
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441 : (IMAGE_INSTANCEP (obj) ? image_instance_device (obj) \
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442 : Qnil))))
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443
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444 #define DOMAIN_FRAME(obj) \
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445 (WINDOWP (obj) ? WINDOW_FRAME (XWINDOW (obj)) \
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446 : (FRAMEP (obj) ? obj \
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447 : (IMAGE_INSTANCEP (obj) ? image_instance_frame (obj) \
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448 : Qnil)))
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449
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450 #define DOMAIN_WINDOW(obj) \
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451 (WINDOWP (obj) ? obj \
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452 : (IMAGE_INSTANCEP (obj) ? image_instance_window (obj) \
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453 : Qnil))
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454
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455 #define DOMAIN_LIVE_P(obj) \
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456 (WINDOWP (obj) ? WINDOW_LIVE_P (XWINDOW (obj)) \
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457 : (FRAMEP (obj) ? FRAME_LIVE_P (XFRAME (obj)) \
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458 : (DEVICEP (obj) ? DEVICE_LIVE_P (XDEVICE (obj)) \
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459 : (IMAGE_INSTANCEP (obj) ? image_instance_live_p (obj) \
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460 : 0))))
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461
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462 #define DOMAIN_XDEVICE(obj) \
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463 (XDEVICE (DOMAIN_DEVICE (obj)))
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464 #define DOMAIN_XFRAME(obj) \
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465 (XFRAME (DOMAIN_FRAME (obj)))
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466 #define DOMAIN_XWINDOW(obj) \
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467 (XWINDOW (DOMAIN_WINDOW (obj)))
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468
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469 EXFUN (Fcopy_specifier, 6);
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470 EXFUN (Fmake_specifier, 1);
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471 EXFUN (Fset_specifier_dirty_flag, 1);
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472 EXFUN (Fspecifier_instance, 4);
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473 EXFUN (Fvalid_specifier_locale_p, 1);
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474
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475 extern Lisp_Object Qfallback, Qnatnum;
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476
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477 Lisp_Object make_magic_specifier (Lisp_Object type);
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478 Lisp_Object decode_locale_list (Lisp_Object locale);
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479 extern enum spec_add_meth
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480 decode_how_to_add_specification (Lisp_Object how_to_add);
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481 Lisp_Object decode_specifier_tag_set (Lisp_Object tag_set);
442
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482 Lisp_Object decode_domain (Lisp_Object domain);
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483
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484 void add_entry_to_specifier_type_list (Lisp_Object symbol,
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485 struct specifier_methods *meths);
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486 void set_specifier_caching (Lisp_Object specifier,
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487 int struct_window_offset,
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488 void (*value_changed_in_window)
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489 (Lisp_Object specifier, struct window *w,
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490 Lisp_Object oldval),
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491 int struct_frame_offset,
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492 void (*value_changed_in_frame)
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493 (Lisp_Object specifier, struct frame *f,
444
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494 Lisp_Object oldval),
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495 int always_recompute);
428
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496 void set_specifier_fallback (Lisp_Object specifier,
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497 Lisp_Object fallback);
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498 void recompute_all_cached_specifiers_in_window (struct window *w);
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499 void recompute_all_cached_specifiers_in_frame (struct frame *f);
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500
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501 /* Counterparts of Fadd_spec_to_specifier and Fremove_specifier, which
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502 operate directly on ghost objects given a magic specifier. */
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503 void add_spec_to_ghost_specifier (Lisp_Object specifier, Lisp_Object instantiator,
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504 Lisp_Object locale, Lisp_Object tag_set,
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505 Lisp_Object how_to_add);
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506 void remove_ghost_specifier (Lisp_Object specifier, Lisp_Object locale,
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507 Lisp_Object tag_set, Lisp_Object exact_p);
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508
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509 int unlock_ghost_specifiers_protected (void);
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510
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511 void cleanup_specifiers (void);
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512 void prune_specifiers (void);
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513 void setup_device_initial_specifier_tags (struct device *d);
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514 void kill_specifier_buffer_locals (Lisp_Object buffer);
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515
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516 DECLARE_SPECIFIER_TYPE (generic);
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517 #define XGENERIC_SPECIFIER(x) XSPECIFIER_TYPE (x, generic)
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518 #define GENERIC_SPECIFIERP(x) SPECIFIER_TYPEP (x, generic)
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519 #define CHECK_GENERIC_SPECIFIER(x) CHECK_SPECIFIER_TYPE (x, generic)
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520 #define CONCHECK_GENERIC_SPECIFIER(x) CONCHECK_SPECIFIER_TYPE (x, generic)
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521
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522 DECLARE_SPECIFIER_TYPE (integer);
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523 #define XINTEGER_SPECIFIER(x) XSPECIFIER_TYPE (x, integer)
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524 #define INTEGER_SPECIFIERP(x) SPECIFIER_TYPEP (x, integer)
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525 #define CHECK_INTEGER_SPECIFIER(x) CHECK_SPECIFIER_TYPE (x, integer)
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526 #define CONCHECK_INTEGER_SPECIFIER(x) CONCHECK_SPECIFIER_TYPE (x, integer)
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527
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528 DECLARE_SPECIFIER_TYPE (natnum);
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529 #define XNATNUM_SPECIFIER(x) XSPECIFIER_TYPE (x, natnum)
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530 #define NATNUM_SPECIFIERP(x) SPECIFIER_TYPEP (x, natnum)
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531 #define CHECK_NATNUM_SPECIFIER(x) CHECK_SPECIFIER_TYPE (x, natnum)
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532 #define CONCHECK_NATNUM_SPECIFIER(x) CONCHECK_SPECIFIER_TYPE (x, natnum)
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533
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534 DECLARE_SPECIFIER_TYPE (boolean);
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535 #define XBOOLEAN_SPECIFIER(x) XSPECIFIER_TYPE (x, boolean)
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536 #define BOOLEAN_SPECIFIERP(x) SPECIFIER_TYPEP (x, boolean)
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537 #define CHECK_BOOLEAN_SPECIFIER(x) CHECK_SPECIFIER_TYPE (x, boolean)
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538 #define CONCHECK_BOOLEAN_SPECIFIER(x) CONCHECK_SPECIFIER_TYPE (x, boolean)
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539
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540 DECLARE_SPECIFIER_TYPE (display_table);
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541 #define XDISPLAYTABLE_SPECIFIER(x) XSPECIFIER_TYPE (x, display_table)
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542 #define DISPLAYTABLE_SPECIFIERP(x) SPECIFIER_TYPEP (x, display_table)
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543 #define CHECK_DISPLAYTABLE_SPECIFIER(x) CHECK_SPECIFIER_TYPE (x, display_table)
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544 #define CONCHECK_DISPLAYTABLE_SPECIFIER(x) CONCHECK_SPECIFIER_TYPE (x, display_table)
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545
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546 #endif /* INCLUDED_specifier_h_ */