annotate src/syntax.h @ 872:79c6ff3eef26

[xemacs-hg @ 2002-06-20 21:18:01 by ben] font changes etc.; some 21.4 changes mule/mule-msw-init-late.el: Specify charset->windows-registry conversion. mule/mule-x-init.el: Delete extra mule font additions here. Put them in faces.c. cl-macs.el: Document better. font-lock.el: Move Lisp function regexp to lisp-mode.el. lisp-mode.el: Various indentation fixes: Handle flet functions better. Handle argument lists in defuns and flets. Handle quoted lists, e.g. property lists -- don't indent like function calls. Distinguish between lambdas and other lists. lisp-mode.el: Handle this form. faces.el, font-menu.el, font.el, gtk-faces.el, msw-faces.el, msw-font-menu.el, x-faces.el, x-init.el: Major overhaul of face-handling code: -- Fix lots of bogus code in msw-faces.el, msw-font-menu.el, font-menu.el that was "truenaming" font specs -- i.e. in the process of frobbing a particular field in a general user-specified font spec with wildcarded fields, sticking in particular values for all the remaining wildcarded fields. This bug was rampant everywhere except in x-faces.el (the oldest and only correctly written code). This also means that we need to work with font names at all times and not font instances, because a font instance is essentially a truenamed font. -- Total rewrite of extremely junky code in msw-faces.el. Work with names as well as font instances, and return names; stop truenaming when canonicalizing and frobbing; fix handling of the combined style field, i.e. weight/slant (also fixed in font.el). -- Totally rewrite the frobbing functions in faces.el. This time, we frob all the instantiators rather than just computing a single instance value and working backwards. That way, e.g., `bold' will work for all charsets that have bold available, rather than only for whatever charset was part of the computed font instance (another example of the truename virus). Also fix up code to look at the fallbacks (all of them) when no global value present, so we don't need to put something in the global value. Intelligently handle a request to frob a buffer locale, rather than signalling an error. When frobbing instantiators, try hard to figure out what device type is associated with them, and frob each according to its own proper device type. Correctly handle inheritance vectors given as instantiators. Preserve existing tags when putting back frobbed instantiators. Extract out general specifier-frobbing code into specifier.el. Document everything cleanly. Do lots of other things better, etc. -- Don't duplicatively set a global specification for the default font -- it's already in the fallback and we no longer need a default global specification present. Delete various code in x-faces.el and msw-faces.el that duplicated the lists of fonts in faces.c. -- init-global-faces was not being called at all under MS Windows! Major bogosity. That caused device-specific values to get stuck into all the fonts, making it very hard to change them -- setting global specs caused nothing to happen. -- Correct weight names in font.el. -- Lots more font fixups in objects*.c. Printer.el: Warning fix. specifier.el: Add more args to map-specifier. Add various "heuristic" specifier functions to aid in creation of specifier-munging code such as in faces.el. subr.el: New functions. lwlib.c: Fix warning. config.inc.samp: Clean up, add args to control fastcall (not yet supported! the changes needed are in another ws of mine), profile support, vc6 support, union-type. xemacs.dsp, xemacs.mak: Semi-major overhaul. Fix bug where dump-id was always getting recomputed, forcing a redump even when nothing changed. Add support for fastcall. Support edit-and-continue (on by default) with vc6. Use incremental linking when doing a debug compilation. Add support for profiling. Consolidate the various debug flags. Partial support for "batch-compiling" -- compiling many files on a single invocation of the compiler. Doesn't seem to help that much for me, so it's not finished or enabled by default. Remove HAVE_MSW_C_DIRED, we always do. Correct some sloppy use of directories. s/cygwin32.h: Allow pdump to work under Cygwin (mmap is broken, so need to undefine HAVE_MMAP). s/win32-common.h, s/windowsnt.h: Support for fastcall. Add WIN32_ANY for identifying all Win32 variants (Cygwin, native, MinGW). Both of these are properly used in another ws. alloc.c, balloon-x.c, buffer.c, bytecode.c, callint.c, cm.c, cmdloop.c, cmds.c, console-gtk.c, console-gtk.h, console-msw.c, console-msw.h, console-stream.c, console-stream.h, console-tty.c, console-tty.h, console-x.c, console-x.h, console.c, console.h, device-gtk.c, device-msw.c, device-tty.c, device-x.c, device.c, device.h, devslots.h, dialog-gtk.c, dialog-msw.c, dialog-x.c, dialog.c, dired-msw.c, editfns.c, emacs.c, event-Xt.c, event-gtk.c, event-msw.c, event-stream.c, event-tty.c, event-unixoid.c, events.c, extents.c, extents.h, faces.c, fileio.c, fns.c, frame-gtk.c, frame-msw.c, frame-tty.c, frame-x.c, frame.c, frame.h, glyphs-eimage.c, glyphs-gtk.c, glyphs-msw.c, glyphs-widget.c, glyphs-x.c, glyphs.c, glyphs.h, gui-gtk.c, gui-msw.c, gui-x.c, gui.c, gutter.c, input-method-xlib.c, intl-encap-win32.c, intl-win32.c, keymap.c, lisp.h, macros.c, menubar-gtk.c, menubar-msw.c, menubar-x.c, menubar.c, menubar.h, minibuf.c, mule-charset.c, nt.c, objects-gtk.c, objects-gtk.h, objects-msw.c, objects-msw.h, objects-tty.c, objects-tty.h, objects-x.c, objects-x.h, objects.c, objects.h, postgresql.c, print.c, process.h, redisplay-gtk.c, redisplay-msw.c, redisplay-output.c, redisplay-tty.c, redisplay-x.c, redisplay.c, redisplay.h, scrollbar-gtk.c, scrollbar-msw.c, scrollbar-x.c, scrollbar.c, select-gtk.c, select-msw.c, select-x.c, select.c, signal.c, sound.c, specifier.c, symbols.c, syntax.c, sysdep.c, syssignal.h, syswindows.h, toolbar-common.c, toolbar-gtk.c, toolbar-msw.c, toolbar-x.c, toolbar.c, unicode.c, window.c, window.h: The following are the major changes made: (1) Separation of various header files into an external and an internal version, similar to the existing separation of process.h and procimpl.h. Eventually this should be done for all Lisp objects. The external version has the same name as currently; the internal adds -impl. The external file has XFOO() macros for objects, but the structure is opaque and defined only in the internal file. It's now reasonable to move all prototypes in lisp.h into the appropriate external file, and this should be done. Currently, separation has been done on extents.h, objects*.h, console.h, device.h, frame.h, and window.h. For c/d/f/w, the most basic properties are available in the external header file, with the macros resolving to functions. In the internal header file, the macros are redefined to directly access the structure. Also, the global MARK_FOO_CHANGED macros have been made into functions so that they can be accessed without needing to include lots of -impl headers -- they are used in almost exclusively in non-time-critical functions, and take up enough time that the function overhead will be negligible. Similarly, the function overhead from making the basic properties mentioned above into functions is negligible, and code that does heavy accessing of c/d/f/w structures inevitably ends up needing the internal header files, anyway. (2) More face changes. -- Major rewrite of objects-msw.c. Now handles wildcard specs properly, rather than "truenaming" (or even worse, signalling an error, which previously happened with some of the fallbacks if you tried to use them in make-font-instance!). -- Split charset matching of fonts into two stages -- one to find a font specifically designed for a particular charset (by examining its registry), the second to find a Unicode font that can support the charset. This needs to proceed as two complete, separate instantiations in order to work properly (otherwise many of the fonts in the HELLO page look wrong). This should also make it easy to support iso10646 (Unicode) fonts under X. -- All default values for fonts are now completely specified in the fallbacks. Stuff from mule-x-init.el has all been moved here, merged with the existing specs, and totally rethought so you get sensible results. (HELLO now looks much better!). -- Generalize the "default X/GTK device" stuff into a per-device-type "default device". -- Add mswindows-{set-}charset-registry. In time, charset<->code-page conversion functions will be removed. -- Wrap protective code around calls to compute device specifier tags, and do this computation before calling the face initialization code because the latter may need these tags to be correctly updated. (3) Other changes. EmacsFrame.c, glyphs-msw.c, eval.c, gui-x.c, intl-encap-win32.c, search.c, signal.c, toolbar-msw.c, unicode.c: Warning fixes. config.h.in: #undefs meant to be frobbed by configure *MUST* go inside of #ifndef WIN32_NO_CONFIGURE, and everything else *MUST* go outside! eval.c: Let detailed backtraces be detailed. specifier.c: Don't override user's print-string-length/print-length settings. glyphs.c: New function image-instance-instantiator. config.h.in, sysdep.c: Changes for fastcall. sysdep.c, nt.c: Fix up a previous botched patch that tried to add support for both EEXIST and EACCES. IF THE BOTCHED PATCH WENT INTO 21.4, THIS FIXUP NEEDS TO GO IN, TOO. search.c: Fix *evil* crash due to incorrect synching of syntax-cache code with 21.1. THIS SHOULD GO INTO 21.4.
author ben
date Thu, 20 Jun 2002 21:19:10 +0000
parents 804517e16990
children 87084e8445a7
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1 /* Declarations having to do with XEmacs syntax tables.
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2 Copyright (C) 1985, 1992, 1993 Free Software Foundation, Inc.
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3 Copyright (C) 2002 Ben Wing.
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4
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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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16
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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: FSF 19.28. */
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23
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24 #ifndef INCLUDED_syntax_h_
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25 #define INCLUDED_syntax_h_
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27 #include "chartab.h"
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28
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29 /* A syntax table is a type of char table.
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30
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31 The low 7 bits of the integer is a code, as follows. The 8th bit is
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32 used as the prefix bit flag (see below).
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33
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34 The values in a syntax table are either integers or conses of
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35 integers and chars. The lowest 7 bits of the integer are the syntax
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36 class. If this is Sinherit, then the actual syntax value needs to
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37 be retrieved from the standard syntax table.
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38
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39 Since the logic involved in finding the actual integer isn't very
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40 complex, you'd think the time required to retrieve it is not a
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41 factor. If you thought that, however, you'd be wrong, due to the
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42 high number of times (many per character) that the syntax value is
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43 accessed in functions such as scan_lists(). To speed this up,
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44 we maintain a mirror syntax table that contains the actual
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45 integers. We can do this successfully because syntax tables are
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46 now an abstract type, where we control all access.
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47 */
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48
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49 enum syntaxcode
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50 {
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51 Swhitespace, /* whitespace character */
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52 Spunct, /* random punctuation character */
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53 Sword, /* word constituent */
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54 Ssymbol, /* symbol constituent but not word constituent */
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55 Sopen, /* a beginning delimiter */
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56 Sclose, /* an ending delimiter */
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57 Squote, /* a prefix character like Lisp ' */
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58 Sstring, /* a string-grouping character like Lisp " */
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59 Smath, /* delimiters like $ in TeX. */
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60 Sescape, /* a character that begins a C-style escape */
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61 Scharquote, /* a character that quotes the following character */
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62 Scomment, /* a comment-starting character */
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63 Sendcomment, /* a comment-ending character */
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64 Sinherit, /* use the standard syntax table for this character */
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65 Scomment_fence, /* Starts/ends comment which is delimited on the
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66 other side by a char with the same syntaxcode. */
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67 Sstring_fence, /* Starts/ends string which is delimited on the
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68 other side by a char with the same syntaxcode. */
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69 Smax /* Upper bound on codes that are meaningful */
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70 };
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71
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72 enum syntaxcode charset_syntax (struct buffer *buf, Lisp_Object charset,
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73 int *multi_p_out);
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74
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75 /* Return the syntax code for a particular character and mirror table. */
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76
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77 #define SYNTAX_CODE(table, c) XINT (get_char_table (c, table))
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79 #define SYNTAX_FROM_CODE(code) ((enum syntaxcode) ((code) & 0177))
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81 #define SYNTAX(table, c) SYNTAX_FROM_CODE (SYNTAX_CODE (table, c))
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83 DECLARE_INLINE_HEADER (
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84 int
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85 WORD_SYNTAX_P (Lisp_Object table, Ichar c)
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86 )
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87 {
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88 return SYNTAX (table, c) == Sword;
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89 }
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90
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91 /* OK, here's a graphic diagram of the format of the syntax values:
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92
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93 Bit number:
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94
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95 [ 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 ]
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96 [ 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 ]
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97
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98 <-----> <-----> <-------------> <-------------> ^ <----------->
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99 ELisp unused |comment bits | unused | syntax code
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100 tag | | | | | | | | |
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101 stuff | | | | | | | | |
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102 | | | | | | | | |
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103 | | | | | | | | `--> prefix flag
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104 | | | | | | | |
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105 | | | | | | | `--> comment end style B, second char
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106 | | | | | | `----> comment end style A, second char
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107 | | | | | `------> comment end style B, first char
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108 | | | | `--------> comment end style A, first char
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109 | | | `----------> comment start style B, second char
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110 | | `------------> comment start style A, second char
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111 | `--------------> comment start style B, first char
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112 `----------------> comment start style A, first char
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113
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114 In a 64-bit integer, there would be 32 more unused bits between
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115 the tag and the comment bits.
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116
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117 Clearly, such a scheme will not work for Mule, because the matching
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118 paren could be any character and as such requires 19 bits, which
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119 we don't got.
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120
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121 Remember that under Mule we use char tables instead of vectors.
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122 So what we do is use another char table for the matching paren
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123 and store a pointer to it in the first char table. (This frees
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124 code from having to worry about passing two tables around.)
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125 */
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126
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127
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128 /* The prefix flag bit for backward-prefix-chars is now put into bit 7. */
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129
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130 #define SYNTAX_PREFIX(table, c) \
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131 ((SYNTAX_CODE (table, c) >> 7) & 1)
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132
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133 /* Bits 23-16 are used to implement up to two comment styles
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134 in a single buffer. They have the following meanings:
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135
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136 1. first of a one or two character comment-start sequence of style a.
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137 2. first of a one or two character comment-start sequence of style b.
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138 3. second of a two-character comment-start sequence of style a.
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139 4. second of a two-character comment-start sequence of style b.
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140 5. first of a one or two character comment-end sequence of style a.
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141 6. first of a one or two character comment-end sequence of style b.
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142 7. second of a two-character comment-end sequence of style a.
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143 8. second of a two-character comment-end sequence of style b.
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144 */
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145
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146 #define SYNTAX_COMMENT_BITS(table, c) \
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147 ((SYNTAX_CODE (table, c) >> 16) &0xff)
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148
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149 #define SYNTAX_FIRST_OF_START_A 0x80
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150 #define SYNTAX_FIRST_OF_START_B 0x40
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151 #define SYNTAX_SECOND_OF_START_A 0x20
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152 #define SYNTAX_SECOND_OF_START_B 0x10
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153 #define SYNTAX_FIRST_OF_END_A 0x08
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154 #define SYNTAX_FIRST_OF_END_B 0x04
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155 #define SYNTAX_SECOND_OF_END_A 0x02
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156 #define SYNTAX_SECOND_OF_END_B 0x01
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157
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158 #define SYNTAX_COMMENT_STYLE_A 0xaa
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159 #define SYNTAX_COMMENT_STYLE_B 0x55
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160 #define SYNTAX_FIRST_CHAR_START 0xc0
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161 #define SYNTAX_FIRST_CHAR_END 0x0c
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162 #define SYNTAX_FIRST_CHAR 0xcc
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163 #define SYNTAX_SECOND_CHAR_START 0x30
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164 #define SYNTAX_SECOND_CHAR_END 0x03
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165 #define SYNTAX_SECOND_CHAR 0x33
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166
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167 #if 0
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168
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169 /* #### Entirely unused. Should they be deleted? */
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170
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171 /* #### These are now more or less equivalent to
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172 SYNTAX_COMMENT_MATCH_START ...*/
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173 /* a and b must be first and second start chars for a common type */
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174 #define SYNTAX_START_P(table, a, b) \
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175 (((SYNTAX_COMMENT_BITS (table, a) & SYNTAX_FIRST_CHAR_START) >> 2) \
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176 & (SYNTAX_COMMENT_BITS (table, b) & SYNTAX_SECOND_CHAR_START))
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177
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178 /* ... and SYNTAX_COMMENT_MATCH_END */
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179 /* a and b must be first and second end chars for a common type */
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180 #define SYNTAX_END_P(table, a, b) \
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181 (((SYNTAX_COMMENT_BITS (table, a) & SYNTAX_FIRST_CHAR_END) >> 2) \
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182 & (SYNTAX_COMMENT_BITS (table, b) & SYNTAX_SECOND_CHAR_END))
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183
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184 #define SYNTAX_STYLES_MATCH_START_P(table, a, b, mask) \
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185 ((SYNTAX_COMMENT_BITS (table, a) & SYNTAX_FIRST_CHAR_START & (mask)) \
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186 && (SYNTAX_COMMENT_BITS (table, b) & SYNTAX_SECOND_CHAR_START & (mask)))
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187
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188 #define SYNTAX_STYLES_MATCH_END_P(table, a, b, mask) \
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189 ((SYNTAX_COMMENT_BITS (table, a) & SYNTAX_FIRST_CHAR_END & (mask)) \
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190 && (SYNTAX_COMMENT_BITS (table, b) & SYNTAX_SECOND_CHAR_END & (mask)))
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191
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192 #define SYNTAX_STYLES_MATCH_1CHAR_P(table, a, mask) \
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193 ((SYNTAX_COMMENT_BITS (table, a) & (mask)))
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194
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195 #define STYLE_FOUND_P(table, a, b, startp, style) \
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196 ((SYNTAX_COMMENT_BITS (table, a) & \
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197 ((startp) ? SYNTAX_FIRST_CHAR_START : \
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198 SYNTAX_FIRST_CHAR_END) & (style)) \
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199 && (SYNTAX_COMMENT_BITS (table, b) & \
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200 ((startp) ? SYNTAX_SECOND_CHAR_START : \
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201 SYNTAX_SECOND_CHAR_END) & (style)))
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202
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203 #define SYNTAX_COMMENT_MASK_START(table, a, b) \
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204 ((STYLE_FOUND_P (table, a, b, 1, SYNTAX_COMMENT_STYLE_A) \
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205 ? SYNTAX_COMMENT_STYLE_A \
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206 : (STYLE_FOUND_P (table, a, b, 1, SYNTAX_COMMENT_STYLE_B) \
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207 ? SYNTAX_COMMENT_STYLE_B \
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208 : 0)))
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209
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210 #define SYNTAX_COMMENT_MASK_END(table, a, b) \
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211 ((STYLE_FOUND_P (table, a, b, 0, SYNTAX_COMMENT_STYLE_A) \
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212 ? SYNTAX_COMMENT_STYLE_A \
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213 : (STYLE_FOUND_P (table, a, b, 0, SYNTAX_COMMENT_STYLE_B) \
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214 ? SYNTAX_COMMENT_STYLE_B \
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215 : 0)))
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216
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217 #define STYLE_FOUND_1CHAR_P(table, a, style) \
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218 ((SYNTAX_COMMENT_BITS (table, a) & (style)))
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219
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220 #define SYNTAX_COMMENT_1CHAR_MASK(table, a) \
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221 ((STYLE_FOUND_1CHAR_P (table, a, SYNTAX_COMMENT_STYLE_A) \
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222 ? SYNTAX_COMMENT_STYLE_A \
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223 : (STYLE_FOUND_1CHAR_P (table, a, SYNTAX_COMMENT_STYLE_B) \
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224 ? SYNTAX_COMMENT_STYLE_B \
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225 : 0)))
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226
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227 #endif /* 0 */
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228
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229 /* This array, indexed by a character, contains the syntax code which
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230 that character signifies (as a char).
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231 For example, (enum syntaxcode) syntax_spec_code['w'] is Sword. */
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232
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233 extern const unsigned char syntax_spec_code[0400];
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234
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235 /* Indexed by syntax code, give the letter that describes it. */
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236
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237 extern const unsigned char syntax_code_spec[];
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238
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239 Lisp_Object scan_lists (struct buffer *buf, Charbpos from, int count,
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240 int depth, int sexpflag, int no_error);
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241 int char_quoted (struct buffer *buf, Charbpos pos);
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242
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243 /* NOTE: This does not refer to the mirror table, but to the
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244 syntax table itself. */
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245 Lisp_Object syntax_match (Lisp_Object table, Ichar ch);
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246
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247 extern int no_quit_in_re_search;
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248
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249 void update_syntax_table (Lisp_Object table);
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250
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251
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252 /****************************** syntax caches ********************************/
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253
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254 extern int lookup_syntax_properties;
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255
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256 /* Now that the `syntax-table' property exists, and can override the syntax
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257 table or directly specify the syntax, we cache the last place we
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258 retrieved the syntax-table property. This is because, when moving
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259 linearly through text (e.g. in the regex routines or the scanning
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260 routines in syntax.c), we only need to recalculate at the next place the
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261 syntax-table property changes (i.e. not every position), and when we do
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262 need to recalculate, we can update the info from the previous info
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263 faster than if we did the whole calculation from scratch. */
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264 struct syntax_cache
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265 {
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266 int use_code; /* Whether to use syntax_code or
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267 current_syntax_table. This is
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268 set depending on whether the
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269 syntax-table property is a
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270 syntax table or a syntax
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271 code. */
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272 int no_syntax_table_prop; /* If non-zero, there was no
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273 `syntax-table' property on the
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274 current range, and so we're
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275 using the buffer's syntax table.
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276 This is important to note because
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277 sometimes the buffer's syntax
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278 table can be changed. */
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279 Lisp_Object object; /* The buffer or string the current
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280 syntax cache applies to, or
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281 Qnil for a string of text not
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282 coming from a buffer or string. */
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283 struct buffer *buffer; /* The buffer that supplies the
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284 syntax tables, or 0 for the
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285 standard syntax table. If
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286 OBJECT is a buffer, this will
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287 always be the same buffer. */
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288 int syntax_code; /* Syntax code of current char. */
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289 Lisp_Object current_syntax_table; /* Syntax table for current pos. */
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290 Lisp_Object start, end; /* Markers to keep track of the
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291 known region in a buffer.
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292 Formerly we used an internal
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293 extent, but it seems that having
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294 an extent over the entire buffer
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295 causes serious slowdowns in
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296 extent operations! Yuck! */
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297 Charxpos next_change; /* Position of the next extent
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298 change. */
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299 Charxpos prev_change; /* Position of the previous extent
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300 change. */
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301 };
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302
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303 /* Note that the external interface to the syntax-cache uses charpos's, but
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304 intnernally we use bytepos's, for speed. */
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305
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306 void update_syntax_cache (struct syntax_cache *cache, Charxpos pos, int count);
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307 struct syntax_cache *setup_syntax_cache (struct syntax_cache *cache,
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308 Lisp_Object object,
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309 struct buffer *buffer,
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310 Charxpos from, int count);
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311 struct syntax_cache *setup_buffer_syntax_cache (struct buffer *buffer,
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312 Charxpos from, int count);
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313
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314 /* Make syntax cache state good for CHARPOS, assuming it is
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315 currently good for a position before CHARPOS. */
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316 DECLARE_INLINE_HEADER (
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317 void
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318 UPDATE_SYNTAX_CACHE_FORWARD (struct syntax_cache *cache, Charxpos pos)
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319 )
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320 {
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321 if (!(pos >= cache->prev_change && pos < cache->next_change))
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322 update_syntax_cache (cache, pos, 1);
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323 }
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324
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325 /* Make syntax cache state good for CHARPOS, assuming it is
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326 currently good for a position after CHARPOS. */
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327 DECLARE_INLINE_HEADER (
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328 void
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329 UPDATE_SYNTAX_CACHE_BACKWARD (struct syntax_cache *cache, Charxpos pos)
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330 )
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331 {
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332 if (!(pos >= cache->prev_change && pos < cache->next_change))
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333 update_syntax_cache (cache, pos, -1);
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334 }
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335
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336 /* Make syntax cache state good for CHARPOS */
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337 DECLARE_INLINE_HEADER (
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338 void
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339 UPDATE_SYNTAX_CACHE (struct syntax_cache *cache, Charxpos pos)
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340 )
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341 {
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342 if (!(pos >= cache->prev_change && pos < cache->next_change))
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343 update_syntax_cache (cache, pos, 0);
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344 }
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345
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346 #define SYNTAX_FROM_CACHE(cache, c) \
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347 SYNTAX_FROM_CODE (SYNTAX_CODE_FROM_CACHE (cache, c))
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348
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349 #define SYNTAX_CODE_FROM_CACHE(cache, c) \
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350 ((cache)->use_code ? (cache)->syntax_code \
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351 : SYNTAX_CODE ((cache)->current_syntax_table, c))
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352
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353
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354 /***************************** syntax code macros ****************************/
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355
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356 #define SYNTAX_CODE_PREFIX(c) \
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357 ((c >> 7) & 1)
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358
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359 #define SYNTAX_CODE_COMMENT_BITS(c) \
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360 ((c >> 16) &0xff)
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361
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362 #define SYNTAX_CODES_START_P(a, b) \
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363 (((SYNTAX_CODE_COMMENT_BITS (a) & SYNTAX_FIRST_CHAR_START) >> 2) \
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364 & (SYNTAX_CODE_COMMENT_BITS (b) & SYNTAX_SECOND_CHAR_START))
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365
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366 #define SYNTAX_CODES_END_P(a, b) \
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367 (((SYNTAX_CODE_COMMENT_BITS (a) & SYNTAX_FIRST_CHAR_END) >> 2) \
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368 & (SYNTAX_CODE_COMMENT_BITS (b) & SYNTAX_SECOND_CHAR_END))
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369
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370 #define SYNTAX_CODES_COMMENT_MASK_START(a, b) \
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371 (SYNTAX_CODES_MATCH_START_P (a, b, SYNTAX_COMMENT_STYLE_A) \
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372 ? SYNTAX_COMMENT_STYLE_A \
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373 : (SYNTAX_CODES_MATCH_START_P (a, b, SYNTAX_COMMENT_STYLE_B) \
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374 ? SYNTAX_COMMENT_STYLE_B \
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375 : 0))
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376 #define SYNTAX_CODES_COMMENT_MASK_END(a, b) \
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377 (SYNTAX_CODES_MATCH_END_P (a, b, SYNTAX_COMMENT_STYLE_A) \
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378 ? SYNTAX_COMMENT_STYLE_A \
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379 : (SYNTAX_CODES_MATCH_END_P (a, b, SYNTAX_COMMENT_STYLE_B) \
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380 ? SYNTAX_COMMENT_STYLE_B \
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381 : 0))
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382
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383 #define SYNTAX_CODE_START_FIRST_P(a) \
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384 (SYNTAX_CODE_COMMENT_BITS (a) & SYNTAX_FIRST_CHAR_START)
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385
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386 #define SYNTAX_CODE_START_SECOND_P(a) \
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387 (SYNTAX_CODE_COMMENT_BITS (a) & SYNTAX_SECOND_CHAR_START)
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388
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389 #define SYNTAX_CODE_END_FIRST_P(a) \
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390 (SYNTAX_CODE_COMMENT_BITS (a) & SYNTAX_FIRST_CHAR_END)
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391
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392 #define SYNTAX_CODE_END_SECOND_P(a) \
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393 (SYNTAX_CODE_COMMENT_BITS (a) & SYNTAX_SECOND_CHAR_END)
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394
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395
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396 #define SYNTAX_CODES_MATCH_START_P(a, b, mask) \
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397 ((SYNTAX_CODE_COMMENT_BITS (a) & SYNTAX_FIRST_CHAR_START & (mask)) \
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398 && (SYNTAX_CODE_COMMENT_BITS (b) \
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399 & SYNTAX_SECOND_CHAR_START & (mask)))
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400
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401 #define SYNTAX_CODES_MATCH_END_P(a, b, mask) \
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402 ((SYNTAX_CODE_COMMENT_BITS (a) & SYNTAX_FIRST_CHAR_END & (mask)) \
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403 && (SYNTAX_CODE_COMMENT_BITS (b) & SYNTAX_SECOND_CHAR_END & (mask)))
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404
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405 #define SYNTAX_CODE_MATCHES_1CHAR_P(a, mask) \
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406 ((SYNTAX_CODE_COMMENT_BITS (a) & (mask)))
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407
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408 #define SYNTAX_CODE_COMMENT_1CHAR_MASK(a) \
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409 ((SYNTAX_CODE_MATCHES_1CHAR_P (a, SYNTAX_COMMENT_STYLE_A) \
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410 ? SYNTAX_COMMENT_STYLE_A \
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411 : (SYNTAX_CODE_MATCHES_1CHAR_P (a, SYNTAX_COMMENT_STYLE_B) \
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412 ? SYNTAX_COMMENT_STYLE_B \
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413 : 0)))
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414
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415
440
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416 #endif /* INCLUDED_syntax_h_ */