Mercurial > hg > xemacs-beta
annotate lib-src/make-msgfile.lex @ 5707:5fd1b9a95531
Improve description of `mark-defun'.
| author | Stephen J. Turnbull <stephen@xemacs.org> |
|---|---|
| date | Fri, 28 Dec 2012 23:11:32 +0900 |
| parents | 308d34e9f07d |
| children |
| rev | line source |
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| 428 | 1 %{ |
| 2 | |
| 3 /* This is a Lex file. */ | |
| 4 | |
| 5 /* Localizable-message snarfing. | |
| 6 Copyright (C) 1994, 1995 Amdahl Corporation. | |
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7 Copyright (C) 2010 Ben Wing. |
| 428 | 8 |
| 9 This file is part of XEmacs. | |
| 10 | |
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11 XEmacs is free software: you can redistribute it and/or modify it |
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12 under the terms of the GNU General Public License as published by the |
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13 Free Software Foundation, either version 3 of the License, or (at your |
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14 option) any later version. |
| 428 | 15 |
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16 XEmacs is distributed in the hope that it will be useful, but WITHOUT |
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17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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19 for more details. |
| 428 | 20 |
| 21 You should have received a copy of the GNU General Public License | |
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22 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 428 | 23 |
| 24 /* Written by Ben Wing, November 1994. Some code based on earlier | |
| 25 make-msgfile.c. */ | |
| 26 | |
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27 /* #### A comment: |
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28 |
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29 Directly writing a lex file isn't right. We want to be able to specify |
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30 functions to snarf in simpler ways, e.g. |
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31 |
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32 BEGIN_C_FUNCS |
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33 |
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34 weird_doc (arg, snarf, snarf, arg); |
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35 signal_error (arg, snarf, arg); |
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36 etc. |
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37 |
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38 END_C_FUNCS |
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39 |
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40 In this case, `arg' indicates an arbitrary argument and `snarf' indicates |
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41 that when a quoted string is seen, it should be snarfed. |
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42 |
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43 Then either we write a program to read this script and directly snarf |
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44 messages, or we write a program to convert the script into lex. |
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45 |
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46 --ben, 1/26/10 */ |
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47 |
| 2367 | 48 /* See text.c for a proposal about how this whole system should work. */ |
| 49 | |
| 428 | 50 /* Note: there is still much work to be done on this. |
| 51 | |
| 52 1) Definition of Arg below won't handle a generalized argument | |
| 53 as might appear in a function call. This is fine for DEFUN | |
| 54 and friends, because only simple arguments appear there; but | |
| 55 it might run into problems if Arg is used for other sorts | |
| 56 of functions. | |
| 57 2) snarf() should be modified so that it doesn't output null | |
| 58 strings and non-textual strings (see the comment at the top | |
| 59 of make-msgfile.c). | |
| 60 3) parsing of (insert) should snarf all of the arguments. | |
| 61 4) need to add set-keymap-prompt and deal with gettext of that. | |
| 62 5) parsing of arguments should snarf all strings anywhere within | |
| 63 the arguments, rather than just looking for a string as the | |
| 64 argument. This allows if statements as arguments to get parsed. | |
| 65 6) begin_paren_counting() et al. should handle recursive entry. | |
| 66 7) handle set-window-buffer and other such functions that take | |
| 67 a buffer as the other-than-first argument. | |
| 68 8) there is a fair amount of work to be done on the C code. | |
| 69 Look through the code for #### comments associated with | |
| 70 '#ifdef I18N3' or with an I18N3 nearby. | |
| 71 9) Deal with `get-buffer-process' et al. | |
| 72 10) Many of the changes in the Lisp code marked | |
| 73 'rewritten for I18N3 snarfing' should be undone once (5) is | |
| 74 implemented. | |
| 75 11) Go through the Lisp code in prim and make sure that all | |
| 76 strings are gettexted as necessary. This may reveal more | |
| 77 things to implement. | |
| 78 12) Do the equivalent of (8) for the Lisp code. | |
| 79 13) Deal with parsing of menu specifications. | |
| 80 | |
| 81 --ben | |
| 82 | |
| 83 */ | |
| 84 | |
| 85 /* Some notes: | |
| 86 | |
| 87 -- {Arg} below could get confused by commas inside of quotes. | |
| 88 -- {LispToken} below can match some things that are not tokens (e.g. | |
| 89 numbers) but for all practical purposes it should be fine. | |
| 90 */ | |
| 91 | |
| 92 #include <stdio.h> | |
| 93 | |
| 94 int snarf_return_state; | |
| 95 | |
| 96 %} | |
| 97 | |
| 98 %p 6000 | |
| 99 %e 2000 | |
| 100 %n 1000 | |
| 101 %a 4000 | |
| 102 %s C_QUOTE C_COMMENT LQUO LCOM | |
| 103 %s CSNARF LSNARF | |
| 104 %s DO_C DO_LISP DEFUN | |
| 105 %s DEFUN2 DEFUN3 LDEF | |
| 106 | |
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107 W [ \t\n] |
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108 Any .|\n |
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109 Q \" |
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110 Cm , |
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111 NQ [^\"] |
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112 NT [^A-Za-z_0-9] |
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113 LP "(" |
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114 RP ")" |
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115 NQP [^\"()] |
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116 NQPCm [^,\"()] |
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117 BS "\\" |
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118 Esc ({BS}{Any}) |
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119 Wh ({W}*) |
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120 LCom (;({Esc}|.)*) |
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121 LWh ({W}|{LCom})* |
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122 Open {Wh}{LP} |
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123 OpWQ {Open}{Wh}{Q} |
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124 String {Q}({Esc}|{NQ})*{Q} |
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125 ParenExpr5 "("({String}|{NQP})*")" |
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126 ParenExpr4 "("({String}|{NQP}|{ParenExpr5})*")" |
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127 ParenExpr3 "("({String}|{NQP}|{ParenExpr4})*")" |
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128 ParenExpr2 "("({String}|{NQP}|{ParenExpr3})*")" |
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129 ParenExpr "("({String}|{NQP}|{ParenExpr5})*")" |
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130 Arg ({NQPCm}|{String}|{ParenExpr})* |
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131 ArgCm {Arg}{Cm} |
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132 StringArg {Wh}{String}{Wh}"," |
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133 OpenString {Open}{StringArg} |
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134 LispToken ({Esc}|[-A-Za-z0-9!@$%^&*_=+|{}`~,<.>/?])+ |
| 428 | 135 %% |
| 136 | |
| 137 <DO_C>{NT}"GETTEXT"{OpWQ} { snarf (); } | |
| 138 <DO_C>{NT}"DEFER_GETTEXT"{OpWQ} { snarf (); } | |
| 139 <DO_C>{NT}"build_translated_string"{OpWQ} { snarf (); } | |
| 140 <DO_C>{NT}"insert_string"{OpWQ} { snarf (); } | |
| 141 <DO_C>{NT}"message"{OpWQ} { snarf (); } | |
| 142 <DO_C>{NT}"warn_when_safe"{OpWQ} { snarf (); } | |
| 143 <DO_C>{NT}"error"{OpWQ} { snarf (); } | |
| 144 <DO_C>{NT}"continuable_error"{OpWQ} { snarf (); } | |
| 145 <DO_C>{NT}"signal_simple_error"{OpWQ} { snarf (); } | |
| 146 <DO_C>{NT}"signal_simple_error_2"{OpWQ} { snarf (); } | |
| 147 <DO_C>{NT}"signal_simple_continuable_error"{OpWQ} { snarf (); } | |
| 148 <DO_C>{NT}"signal_simple_continuable_error_2"{OpWQ} { snarf (); } | |
| 149 <DO_C>{NT}"report_file_error"{OpWQ} { snarf (); } | |
| 150 <DO_C>{NT}"signal_file_error"{OpWQ} { snarf (); } | |
| 151 <DO_C>{NT}"signal_double_file_error"{OpWQ} { snarf (); } | |
| 152 <DO_C>{NT}"signal_double_file_error_2"{OpWQ} { snarf (); } | |
| 153 <DO_C>{NT}"syntax_error"{OpWQ} { snarf (); } | |
| 154 <DO_C>{NT}"continuable_syntax_error"{OpWQ} { snarf (); } | |
| 155 <DO_C>{NT}"CTB_ERROR"{OpWQ} { snarf (); } | |
| 156 <DO_C>{NT}"fatal"{OpWQ} { snarf (); } | |
| 157 <DO_C>{NT}"stdout_out"{OpWQ} { snarf (); } | |
| 158 <DO_C>{NT}"stderr_out"{OpWQ} { snarf (); } | |
| 159 <DO_C>{NT}"with_output_to_temp_buffer"{OpWQ} { snarf (); } | |
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160 <DO_C>{NT}"weird_doc"{Open}{ArgCm}{Wh}{Q} { snarf (); /* #### FIXME snarf next arg() */} |
| 428 | 161 |
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162 <DO_C>{NT}"DEFVAR_BOOL"{OpenString}{ArgCm}{Wh}{Q} { snarf (); } |
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163 <DO_C>{NT}"DEFVAR_LISP"{OpenString}{ArgCm}{Wh}{Q} { snarf (); } |
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164 <DO_C>{NT}"DEFVAR_SPECIFIER"{OpenString}{ArgCm}{Wh}{Q} { snarf (); } |
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165 <DO_C>{NT}"DEFVAR_INT"{OpenString}{ArgCm}{Wh}{Q} { snarf (); } |
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166 <DO_C>{NT}"DEFVAR_BUFFER_LOCAL"{OpenString}{ArgCm}{Wh}{Q} { snarf (); } |
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167 <DO_C>{NT}"DEFVAR_BUFFER_DEFAULTS"{OpenString}{ArgCm}{Wh}{Q} { snarf (); } |
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168 <DO_C>{NT}"deferror"{Open}{ArgCm}{StringArg}{Wh}{Q} { snarf (); } |
| 428 | 169 |
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170 <DO_C>{NT}"barf_or_query_if_file_exists"{Open}{ArgCm}{Wh}{Q} { |
| 428 | 171 /* #### see comment above about use of Arg */ |
| 172 snarf (); | |
| 173 } | |
| 174 | |
| 175 <DO_C>{NT}"DEFUN"{Open} { BEGIN DEFUN; } | |
| 176 | |
| 177 <DO_C>"/*" { | |
| 178 /* This is hateful, but doc strings are sometimes put inside of comments | |
| 179 (to get around limits in cpp), so we can't ignore stuff inside of | |
| 180 comments. */ | |
| 181 /* BEGIN C_COMMENT; */ | |
| 182 } | |
| 183 <DO_C>{Q} { BEGIN C_QUOTE; } | |
| 184 <DO_C>{Any} { } | |
| 185 | |
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186 <DEFUN>{StringArg}{ArgCm}{ArgCm}{ArgCm}{ArgCm}{Wh} { BEGIN DEFUN2; } |
| 428 | 187 <DEFUN>{Any} { bad_c_defun (); } |
| 188 | |
| 189 <DEFUN2>{Q} { | |
| 190 /* We found an interactive specification. */ | |
| 191 snarf_return_state = DEFUN3; | |
| 192 snarf (); | |
| 193 } | |
| 194 <DEFUN2>[^,]* { | |
| 195 /* This function doesn't have an interactive specification. | |
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196 Don't use {ArgCm} in the specification because DEFUN3 looks |
| 428 | 197 for the comma. */ |
| 198 BEGIN DEFUN3; | |
| 199 } | |
| 200 | |
| 201 <DEFUN3>{Wh}","{Wh}{Q} { | |
| 202 snarf_return_state = DO_C; | |
| 203 snarf (); | |
| 204 } | |
| 205 <DEFUN3>{Any} { bad_c_defun (); } | |
| 206 | |
| 207 <C_QUOTE>{Esc} { } | |
| 208 <C_QUOTE>{Q} { BEGIN DO_C; } | |
| 209 <C_QUOTE>{Any} { } | |
| 210 | |
| 211 <C_COMMENT>"*/" { BEGIN DO_C; } | |
| 212 <C_COMMENT>{Any} { } | |
| 213 | |
| 214 <DO_LISP>{LP}{LWh}"gettext"{LWh}{Q} { inc_paren (); snarf (); } | |
| 215 <DO_LISP>{LP}{LWh}"purecopy"{LWh}{Q} { inc_paren (); snarf (); } | |
| 216 <DO_LISP>{LP}{LWh}"interactive"{LWh}{Q} { inc_paren (); snarf (); } | |
| 217 <DO_LISP>{LP}{LWh}"message"{LWh}{Q} { inc_paren (); snarf (); } | |
| 218 <DO_LISP>{LP}{LWh}"error"{LWh}{Q} { inc_paren (); snarf (); } | |
| 219 <DO_LISP>{LP}{LWh}"warn"{LWh}{Q} { inc_paren (); snarf (); } | |
| 220 <DO_LISP>{LP}{LWh}"format"{LWh}{Q} { inc_paren (); snarf (); } | |
| 221 <DO_LISP>{LP}{LWh}"substitute-command-keys"{LWh}{Q} { inc_paren (); snarf (); } | |
| 222 <DO_LISP>{LP}{LWh}"temp-minibuffer-message"{LWh}{Q} { inc_paren (); snarf (); } | |
| 223 <DO_LISP>{LP}{LWh}"momentary-string-display"{LWh}{Q} { inc_paren (); snarf (); } | |
| 224 <DO_LISP>{LP}{LWh}"princ"{LWh}{Q} { inc_paren (); snarf (); } | |
| 225 <DO_LISP>{LP}{LWh}"prin1"{LWh}{Q} { inc_paren (); snarf (); } | |
| 226 <DO_LISP>{LP}{LWh}"prin1-to-string"{LWh}{Q} { inc_paren (); snarf (); } | |
| 227 <DO_LISP>{LP}{LWh}"print"{LWh}{Q} { inc_paren (); snarf (); } | |
| 228 <DO_LISP>{LP}{LWh}"insert"{LWh}{Q} { inc_paren (); snarf (); } | |
| 229 <DO_LISP>{LP}{LWh}"insert-before-markers"{LWh}{Q} { inc_paren (); snarf (); } | |
| 230 | |
| 231 <DO_LISP>{LP}{LWh}"get-buffer"{LWh}{Q} { inc_paren (); snarf (); } | |
| 232 <DO_LISP>{LP}{LWh}"get-buffer-create"{LWh}{Q} { inc_paren (); snarf (); } | |
| 233 <DO_LISP>{LP}{LWh}"generate-new-buffer-name"{LWh}{Q} { inc_paren (); snarf (); } | |
| 234 <DO_LISP>{LP}{LWh}"rename-buffer"{LWh}{Q} { inc_paren (); snarf (); } | |
| 235 <DO_LISP>{LP}{LWh}"set-buffer"{LWh}{Q} { inc_paren (); snarf (); } | |
| 236 <DO_LISP>{LP}{LWh}"switch-to-buffer"{LWh}{Q} { inc_paren (); snarf (); } | |
| 237 <DO_LISP>{LP}{LWh}"pop-to-buffer"{LWh}{Q} { inc_paren (); snarf (); } | |
| 238 <DO_LISP>{LP}{LWh}"with-output-to-temp-buffer"{LWh}{Q} { inc_paren (); snarf (); } | |
| 239 <DO_LISP>{LP}{LWh}"buffer-enable-undo"{LWh}{Q} { inc_paren (); snarf (); } | |
| 240 <DO_LISP>{LP}{LWh}"buffer-disable-undo"{LWh}{Q} { inc_paren (); snarf (); } | |
| 241 <DO_LISP>{LP}{LWh}"get-buffer-window"{LWh}{Q} { inc_paren (); snarf (); } | |
| 242 <DO_LISP>{LP}{LWh}"delete-windows-on"{LWh}{Q} { inc_paren (); snarf (); } | |
| 243 <DO_LISP>{LP}{LWh}"replace-buffer-in-windows"{LWh}{Q} { inc_paren (); snarf (); } | |
| 244 <DO_LISP>{LP}{LWh}"display-buffer"{LWh}{Q} { inc_paren (); snarf (); } | |
| 245 <DO_LISP>{LP}{LWh}"other-buffer"{LWh}{Q} { inc_paren (); snarf (); } | |
| 246 | |
| 247 <DO_LISP>{LP}{LWh}"read-from-minibuffer"{LWh}{Q} { inc_paren (); snarf (); } | |
| 248 <DO_LISP>{LP}{LWh}"read-shell-command"{LWh}{Q} { inc_paren (); snarf (); } | |
| 249 <DO_LISP>{LP}{LWh}"read-file-name"{LWh}{Q} { inc_paren (); snarf (); } | |
| 250 <DO_LISP>{LP}{LWh}"read-buffer"{LWh}{Q} { inc_paren (); snarf (); } | |
| 251 <DO_LISP>{LP}{LWh}"read-variable"{LWh}{Q} { inc_paren (); snarf (); } | |
| 252 <DO_LISP>{LP}{LWh}"read-command"{LWh}{Q} { inc_paren (); snarf (); } | |
| 253 <DO_LISP>{LP}{LWh}"read-function"{LWh}{Q} { inc_paren (); snarf (); } | |
| 254 <DO_LISP>{LP}{LWh}"read-directory-name"{LWh}{Q} { inc_paren (); snarf (); } | |
| 255 <DO_LISP>{LP}{LWh}"read-string"{LWh}{Q} { inc_paren (); snarf (); } | |
| 256 <DO_LISP>{LP}{LWh}"read-number"{LWh}{Q} { inc_paren (); snarf (); } | |
| 257 <DO_LISP>{LP}{LWh}"read-minibuffer"{LWh}{Q} { inc_paren (); snarf (); } | |
| 258 <DO_LISP>{LP}{LWh}"read-quoted-char"{LWh}{Q} { inc_paren (); snarf (); } | |
| 259 <DO_LISP>{LP}{LWh}"read-face-name"{LWh}{Q} { inc_paren (); snarf (); } | |
| 260 <DO_LISP>{LP}{LWh}"read-itimer"{LWh}{Q} { inc_paren (); snarf (); } | |
| 261 <DO_LISP>{LP}{LWh}"completing-read"{LWh}{Q} { inc_paren (); snarf (); } | |
| 262 <DO_LISP>{LP}{LWh}"y-or-n-p"{LWh}{Q} { inc_paren (); snarf (); } | |
| 263 <DO_LISP>{LP}{LWh}"yes-or-no-p"{LWh}{Q} { inc_paren (); snarf (); } | |
| 264 <DO_LISP>{LP}{LWh}"query-replace-read-args"{LWh}{Q} { inc_paren (); snarf (); } | |
| 265 <DO_LISP>{LP}{LWh}"eval-minibuffer"{LWh}{Q} { inc_paren (); snarf (); } | |
| 266 <DO_LISP>{LP}{LWh}"edit-and-eval-command"{LWh}{Q} { inc_paren (); snarf (); } | |
| 267 | |
| 268 <DO_LISP>{LP}{LWh}"defvar"{LWh}{LispToken}{LWh} { | |
| 269 inc_paren (); begin_paren_counting (LDEF); | |
| 270 } | |
| 271 <DO_LISP>{LP}{LWh}"defconst"{LWh}{LispToken}{LWh} { | |
| 272 inc_paren (); begin_paren_counting (LDEF); | |
| 273 } | |
| 274 <DO_LISP>{LP}{LWh}"defun"{LWh}{LispToken}{LWh} { | |
| 275 inc_paren (); begin_paren_counting (LDEF); | |
| 276 } | |
| 277 <DO_LISP>{LP}{LWh}"defmacro"{LWh}{LispToken}{LWh} { | |
| 278 inc_paren (); begin_paren_counting (LDEF); | |
| 279 } | |
| 280 <DO_LISP>{LP}{LWh}"defsubst"{LWh}{LispToken}{LWh} { | |
| 281 inc_paren (); begin_paren_counting (LDEF); | |
| 282 } | |
| 283 | |
| 284 <DO_LISP>{Q} { BEGIN LQUO; } | |
| 285 <DO_LISP>";" { BEGIN LCOM; } | |
| 286 <DO_LISP>{LP} { inc_paren (); } | |
| 287 <DO_LISP>{RP} { dec_paren (); } | |
| 288 <DO_LISP>{Esc} { } | |
| 289 <DO_LISP>{W} { lisp_whitespace (); } | |
| 290 <DO_LISP>{Any} { } | |
| 291 | |
| 292 <LQUO>{Esc} { } | |
| 293 <LQUO>{Q} { BEGIN DO_LISP; } | |
| 294 <LQUO>{Any} { } | |
| 295 | |
| 296 <LCOM>"\n" { BEGIN DO_LISP; } | |
| 297 <LCOM>{Any} { } | |
| 298 | |
| 299 <LDEF>{LWh}{Q} { snarf (); } | |
| 300 <LDEF>{Any} { BEGIN DO_LISP; } | |
| 301 | |
| 302 <CSNARF>{Esc} { ECHO; } | |
| 303 <CSNARF>{Q} { ECHO; fprintf (yyout, ")\n"); BEGIN snarf_return_state; } | |
| 304 <CSNARF>{Any} { ECHO; } | |
| 305 | |
| 306 <LSNARF>{Esc} { ECHO; } | |
| 307 <LSNARF>"\n" { fprintf (yyout, "\\n\\\n"); } | |
| 308 <LSNARF>{Q} { ECHO; fprintf (yyout, ")\n"); BEGIN snarf_return_state; } | |
| 309 <LSNARF>{Any} { ECHO; } | |
| 310 | |
| 311 %% | |
| 312 | |
| 313 enum filetype { C_FILE, LISP_FILE, INVALID_FILE }; | |
| 314 /* some brain-dead headers define this ... */ | |
| 315 #undef FALSE | |
| 316 #undef TRUE | |
| 317 enum boolean { FALSE, TRUE }; | |
| 318 | |
| 319 void scan_file (char *filename); | |
| 320 void process_C_file (void); | |
| 321 void process_Lisp_file (void); | |
| 322 | |
| 323 int in_c; | |
| 324 int in_paren_counting, paren_count; | |
| 325 int paren_return_state; | |
| 326 | |
| 327 snarf () | |
| 328 { | |
| 329 fprintf (yyout, "gettext(\""); | |
| 330 if (in_c) | |
| 331 BEGIN CSNARF; | |
| 332 else | |
| 333 BEGIN LSNARF; | |
| 334 } | |
| 335 | |
| 336 bad_c_defun () | |
| 337 { | |
| 338 fprintf (stderr, "Warning: Invalid DEFUN encountered in C, line %d.\n", | |
| 339 yylineno); | |
| 340 snarf_return_state = DO_C; | |
| 341 BEGIN DO_C; | |
| 342 /* REJECT; Sun's lex is broken! Use Flex! */ | |
| 343 } | |
| 344 | |
| 345 bad_lisp_def () | |
| 346 { | |
| 347 fprintf (stderr, | |
| 348 "Warning: Invalid defmumble encountered in Lisp, line %d.\n", | |
| 349 yylineno); | |
| 350 snarf_return_state = DO_LISP; | |
| 351 BEGIN DO_LISP; | |
| 352 /* REJECT; Sun's lex is broken! Use Flex! */ | |
| 353 } | |
| 354 | |
| 355 inc_paren () | |
| 356 { | |
| 357 if (in_paren_counting) | |
| 358 paren_count++; | |
| 359 } | |
| 360 | |
| 361 dec_paren () | |
| 362 { | |
| 363 if (in_paren_counting) | |
| 364 { | |
| 365 /* If we find a right paren without a matching left paren, it usually | |
| 366 just indicates a statement like | |
| 367 | |
| 368 (defvar foo-mumble nil) | |
| 369 | |
| 370 where 'nil' is the sexp we are skipping over, and there's no | |
| 371 doc string. */ | |
| 372 if (paren_count > 0) | |
| 373 paren_count--; | |
| 374 else | |
| 375 unput (')'); | |
| 376 if (paren_count == 0) | |
| 377 { | |
| 378 in_paren_counting = 0; | |
| 379 BEGIN paren_return_state; | |
| 380 } | |
| 381 } | |
| 382 } | |
| 383 | |
| 384 /* #### begin_paren_counting () does not handle recursive entries */ | |
| 385 | |
| 386 begin_paren_counting (int return_state) | |
| 387 { | |
| 388 in_paren_counting = 1; | |
| 389 paren_count = 0; | |
| 390 paren_return_state = return_state; | |
| 391 } | |
| 392 | |
| 393 lisp_whitespace () | |
| 394 { | |
| 395 if (in_paren_counting && !paren_count) | |
| 396 { | |
| 397 /* We got to the end of a token and we're not in a parenthesized | |
| 398 expression, so we're at the end of an sexp. */ | |
| 399 in_paren_counting = 0; | |
| 400 BEGIN paren_return_state; | |
| 401 } | |
| 402 } | |
| 403 | |
| 404 yywrap () | |
| 405 { | |
| 406 return 1; | |
| 407 } | |
| 408 | |
| 409 main (int argc, char *argv[]) | |
| 410 { | |
| 411 register int i; | |
| 412 | |
| 413 yyout = stdout; | |
| 414 | |
| 415 /* If first two args are -o FILE, output to FILE. */ | |
| 416 i = 1; | |
| 417 if (argc > i + 1 && strcmp (argv[i], "-o") == 0) { | |
| 418 yyout = fopen (argv[++i], "w"); | |
| 419 ++i; | |
| 420 } | |
| 421 /* ...Or if args are -a FILE, append to FILE. */ | |
| 422 if (argc > i + 1 && strcmp (argv[i], "-a") == 0) { | |
| 423 yyout = fopen (argv[++i], "a"); | |
| 424 ++i; | |
| 425 } | |
| 426 if (!yyout) { | |
| 427 fprintf (stderr, "Unable to open output file %s\n", argv[--i]); | |
| 428 return; | |
| 429 } | |
| 430 | |
| 431 for (; i < argc; i++) | |
| 432 scan_file (argv[i]); | |
| 433 | |
| 434 return 0; | |
| 435 } | |
| 436 | |
| 437 | |
| 438 void scan_file (char *filename) | |
| 439 { | |
| 440 enum filetype type = INVALID_FILE; | |
| 441 register char *p = filename + strlen (filename); | |
| 442 | |
| 443 if (strcmp (p - 4, ".elc") == 0) { | |
| 444 *--p = '\0'; /* Use .el file instead */ | |
| 445 type = LISP_FILE; | |
| 446 } else if (strcmp (p - 3, ".el") == 0) | |
| 447 type = LISP_FILE; | |
| 448 else if (strcmp (p - 2, ".o") == 0) { | |
| 449 *--p = 'c'; /* Use .c file instead */ | |
| 450 type = C_FILE; | |
| 451 } else if (strcmp (p - 2, ".c") == 0) | |
| 452 type = C_FILE; | |
| 453 | |
| 454 if (type == INVALID_FILE) { | |
| 455 fprintf (stderr, "File %s being ignored\n", filename); | |
| 456 return; | |
| 457 } | |
| 458 yyin = fopen (filename, "r"); | |
| 459 if (!yyin) { | |
| 460 fprintf (stderr, "Unable to open input file %s\n", filename); | |
| 461 return; | |
| 462 } | |
| 463 | |
| 464 fprintf (yyout, "/* %s */\n", filename); | |
| 465 if (type == C_FILE) | |
| 466 process_C_file (); | |
| 467 else | |
| 468 process_Lisp_file (); | |
| 469 fputc ('\n', yyout); | |
| 470 | |
| 471 fclose (yyin); | |
| 472 } | |
| 473 | |
| 474 void process_C_file () | |
| 475 { | |
| 476 snarf_return_state = DO_C; | |
| 477 in_c = 1; | |
| 478 BEGIN DO_C; | |
| 479 yylex (); | |
| 480 } | |
| 481 | |
| 482 void process_Lisp_file () | |
| 483 { | |
| 484 snarf_return_state = DO_LISP; | |
| 485 in_c = 0; | |
| 486 BEGIN DO_LISP; | |
| 487 yylex (); | |
| 488 } | |
| 489 |