Mercurial > hg > xemacs-beta
annotate lib-src/make-mswin-unicode.pl @ 5913:1b2fdcc3cc5c
Remove an old, buggy attempt to preserve East Asian chars, encode_unicode_char
src/ChangeLog addition:
2015-05-11 Aidan Kehoe <kehoea@parhasard.net>
* unicode.c (encode_unicode_char):
If we have no information on the Unicode mapping of a character,
write U+FFFD unconditionally. Remove an old, incomplete,
inappropriate attempt to preserve certain East Asian characters.
tests/ChangeLog addition:
2015-05-11 Aidan Kehoe <kehoea@parhasard.net>
* automated/mule-tests.el:
Assert that a character which we know has no Unicode mapping is
represented as REPLACEMENT CHARACTER in UTF-8, rather than as a
character corresponding to a very large codepoint.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Mon, 11 May 2015 18:04:58 +0100 |
| parents | 308d34e9f07d |
| children | 0f2338afbabf |
| rev | line source |
|---|---|
| 771 | 1 : #-*- Perl -*- |
| 2 | |
| 3 ### make-mswin-unicode --- generate Unicode-encapsulation code for MS Windows | |
| 4 | |
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5 ## Copyright (C) 2001, 2002, 2004, 2010 Ben Wing. |
| 771 | 6 |
| 7 ## Author: Ben Wing <ben@xemacs.org> | |
| 8 ## Maintainer: Ben Wing <ben@xemacs.org> | |
| 9 ## Current Version: 1.0, August 24, 2001 | |
| 10 | |
| 11 ## This file is part of XEmacs. | |
| 12 | |
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13 ## XEmacs is free software: you can redistribute it and/or modify it |
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14 ## under the terms of the GNU General Public License as published by the |
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15 ## Free Software Foundation, either version 3 of the License, or (at your |
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16 ## option) any later version. |
| 771 | 17 |
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18 ## XEmacs is distributed in the hope that it will be useful, but WITHOUT |
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19 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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20 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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21 ## for more details. |
| 771 | 22 |
| 23 ## You should have received a copy of the GNU General Public License | |
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24 ## along with XEmacs. If not, see <http://www.gnu.org/licenses/>. |
| 771 | 25 |
| 26 eval 'exec perl -w -S $0 ${1+"$@"}' | |
| 27 if 0; | |
| 28 | |
| 29 use strict; | |
| 30 use File::Basename; | |
| 31 use Getopt::Long; | |
| 32 | |
| 33 my ($myName, $myPath) = fileparse ($0); | |
| 34 | |
| 35 my $usage=" | |
| 36 Usage: $myName [--c-output FILE] [--h-output FILE] [--help] [FILES ...] | |
| 37 | |
| 38 The purpose of this script is to auto-generate Unicode-encapsulation | |
| 39 code for MS Windows library functions that come in two versions (ANSI | |
| 40 and Unicode). The MS Windows header files provide a way of | |
| 41 automatically calling the right version, but only at compile-time, | |
| 42 which is *NOT* sufficient for any real-world program. The solution is | |
| 43 run-time Unicode encapsulation, which is not conceptually difficult | |
| 44 but is time-consuming, and is not supported standardly only due to | |
| 45 evil marketing decisions made by Microsoft. See src/intl-win32.c | |
| 46 for more information. | |
| 47 | |
| 800 | 48 In XEmacs, this file is normally run using `nmake -f xemacs.mak |
| 49 unicode-encapsulate'. | |
| 50 | |
| 771 | 51 This script processes the specified files, looking for commands |
| 52 indicating library routines to Unicode-encapsulate, as follows: | |
| 53 | |
| 54 Portions of the files that should be processed are enclosed in lines | |
| 55 consisting only of the words \"begin-unicode-encapsulation-script\" | |
| 56 and \"end-unicode-encapsulation-script\". More than one section can | |
| 57 occur in a single file. Processed lines begin with a command word, | |
| 58 followed by one or more args (no quotes are necessary for spaces): | |
| 59 | |
| 60 file specifies a file to start reading from. | |
| 61 yes indicates a function to be automatically Unicode-encapsulated. | |
| 62 (All parameters either need no special processing or are LPTSTR or | |
| 63 LPCTSTR.) | |
| 4911 | 64 override indidates a function where the prototype can be overridden |
| 65 due to errors in Cygwin or Visual Studio. | |
| 771 | 66 soon indicates a function that should be automatically Unicode-encapsulated, |
| 67 but we're not ready to process it yet. | |
| 68 no indicates a function we don't support (it will be #defined to cause | |
| 69 a compile error, with the text after the function included in the | |
| 70 erroneous definition to indicate why we don't support it). | |
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71 review indicates a function that we still need to review to determine whether |
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72 or how to support it. This has the same effect as `no', with a comment |
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73 indicating that the function needs review. |
| 771 | 74 skip indicates a function we support manually; only a comment about this |
| 75 will be generated. | |
| 76 split indicates a function with a split structure (different versions | |
| 77 for Unicode and ANSI), but where the only difference is in pointer | |
| 78 types, and the actual size does not differ. The structure name | |
| 79 should follow the function name, and it will be automatically | |
| 80 Unicode-encapsulated with appropriate casts. | |
| 81 begin-bracket indicates a #if statement to be inserted here. | |
| 82 end-bracket indicates the corresponding #endif statement. | |
| 83 blank lines and lines beginning with // are ignored. | |
| 84 "; | |
| 85 | |
| 86 # ------------------ process command-line options ------------------ | |
| 87 | |
| 88 my %options; | |
| 89 my @SAVE_ARGV = @ARGV; | |
| 90 | |
| 91 $Getopt::Long::ignorecase = 0; | |
| 92 &GetOptions ( | |
| 93 \%options, | |
| 94 'c-output=s', | |
| 95 'h-output=s', | |
| 778 | 96 'includedir=s', |
| 771 | 97 'help', |
| 98 ); | |
| 99 | |
| 100 die $usage if $options{"help"}; | |
| 101 | |
| 102 my $in_script; | |
| 103 my $slurp; | |
| 104 | |
| 778 | 105 my ($cout, $hout, $dir) = ($options{"c-output"}, |
| 106 $options{"h-output"}, | |
| 107 $options{"includedir"}); | |
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108 |
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109 $dir = '/usr/include/w32api' if !$dir && -f '/usr/include/w32api/windows.h'; |
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110 |
| 778 | 111 if (!$dir) |
| 112 { | |
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113 for my $sdkroot (("WindowsSdkDir", "MSSdk", "MSVCDIR")) |
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114 { |
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115 if (defined $ENV{$sdkroot}) { |
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116 $dir = $ENV{$sdkroot}; |
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117 last; |
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118 } |
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119 } |
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120 unless (defined $dir) |
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121 { |
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122 die "Can't find the Windows SDK headers; run vcvars32.bat from your MSVC installation, or setenv.cmd from the Platform SDK installation"; |
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123 } |
| 778 | 124 } |
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125 $dir.='/include' if ((-f $dir.'/include/WINDOWS.H') || |
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126 (-f $dir.'/include/windows.h')); |
| 3728 | 127 die "Can't find MSVC include files in \"$dir\"" unless ((-f $dir.'/WINDOWS.H') || (-f $dir.'/windows.h')); |
| 771 | 128 |
| 129 open (COUT, ">$cout") or die "Can't open C output file $cout: $!"; | |
| 130 open (HOUT, ">$hout") or die "Can't open C output file $hout: $!"; | |
| 131 | |
| 132 select (STDOUT); $| = 1; | |
| 133 | |
| 134 print COUT "/* Automatically-generated Unicode-encapsulation file, | |
| 135 using the command | |
| 136 | |
| 137 $myPath$myName @SAVE_ARGV | |
| 138 | |
| 139 Do not edit. See `$myName'. | |
| 140 */ | |
| 141 | |
| 142 #include <config.h> | |
| 143 #include \"lisp.h\" | |
| 144 | |
| 145 #include \"syswindows.h\" | |
| 146 | |
| 147 "; | |
| 148 print HOUT "/* Automatically-generated Unicode-encapsulation header file. | |
| 149 Do not edit. See `$myName'. | |
| 150 */\n\n"; | |
| 151 | |
| 152 my %files; | |
| 153 my %processed; | |
| 154 my %bracket; | |
| 155 | |
| 156 my $current_file; | |
| 157 my @current_bracket; | |
| 158 | |
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159 my ($ws_re, $must_ws_re, $tok_ch) = |
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160 ("\\s*", "\\s+", "\\w"); |
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161 # unfortunately there is no surefire way short of |
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162 # parsing all include files for typedefs to |
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163 # distinguish types from parameters, and prototypes |
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164 # appear in the include files both with and without |
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165 # parameters -- the latter kinds appear in a very |
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166 # different style and were obviously added later. so |
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167 # we rely on the fact that defined types are all |
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168 # upper-case, and parameters generally are not, and |
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169 # special-case the exceptions. |
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170 my $typeword_re = |
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171 # note the negative lookahead assertions: the first |
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172 # one excludes the words "X" and "Y" from type |
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173 # words, since they appear as parameter names in |
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174 # CreateWindowEx; the second prevents "void |
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175 # *Argument" from being parsed as a type "void *A" |
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176 # followed by a parameter "rgument". |
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177 "(?:(?!(?:X\\b|Y\\b))(?:unsigned|int|long|const|short|va_list|[A-Z_0-9]+)(?!${tok_ch}))"; |
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178 my $typetoken_re = "(?:$typeword_re$ws_re\\**$ws_re)"; |
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179 # Regexp matching a particular argument |
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180 my $arg_re = "(?:(?:$typetoken_re+)(?:${tok_ch}+)?(?: OPTIONAL)?)"; |
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181 # Same, but with groups to match the type and name |
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182 my $argmatch_re = "(?:($typetoken_re+)(${tok_ch}+)?(?: OPTIONAL)?)"; |
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183 # regexp matching a parenthesized argument list in a prototype |
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184 my $args_re = "\\(((?:${ws_re}${arg_re}${ws_re},)*${ws_re}${arg_re}${ws_re})\\)"; |
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185 # regexp matching a return type in a protype |
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186 my $rettype_re = "(SHSTDAPI_\\(${tok_ch}+\\)|${tok_ch}" . "[A-Za-z_0-9 \t\n\r\f]*?${tok_ch})"; |
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187 # regexp matching a function name |
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188 my $funname_re = "(${tok_ch}+)"; |
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189 # Regexp matching a function prototype, $1 = rettype, $2 = name, $3 = args |
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190 my $fun_re = "${rettype_re}${ws_re}${funname_re}${ws_re}${args_re};"; |
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191 # Regexp matching a particular Unicode function (ending in ...W) |
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192 my $wfun_re = "${rettype_re}${ws_re}${funname_re}W${ws_re}${args_re};"; |
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193 |
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194 # print "regexp: $wfun_re\n"; |
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195 |
| 771 | 196 while (<>) |
| 197 { | |
| 198 chomp; | |
| 800 | 199 # remove trailing CR. #### Should not be necessary! Perl should be |
| 200 # opening these in text mode by default, as the docs claim, and | |
| 201 # automatically remove the CR's. | |
| 202 tr/\r//d; | |
| 771 | 203 |
| 204 if (/^begin-unicode-encapsulation-script$/) | |
| 205 { | |
| 206 $in_script = 1; | |
| 207 } | |
| 208 elsif (/^end-unicode-encapsulation-script$/) | |
| 209 { | |
| 210 $in_script = 0; | |
| 211 } | |
| 212 elsif ($in_script) | |
| 213 { | |
| 214 next if (m!^//!); | |
| 215 next if (/^[ \t]*$/); | |
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216 if (/(file|yes|soon|no|review|skip|split|begin-bracket|end-bracket|override)(?: (.*))?/) |
| 771 | 217 { |
| 218 my ($command, $parms) = ($1, $2); | |
| 778 | 219 if ($command eq "file") |
| 771 | 220 { |
| 221 $current_file = $parms; | |
| 222 } | |
| 223 elsif ($command eq "begin-bracket") | |
| 224 { | |
| 225 my $current_bracket = $current_bracket[$#current_bracket]; | |
| 226 if (defined ($current_bracket)) | |
| 227 { | |
| 228 $current_bracket .= "&& $parms"; | |
| 229 } | |
| 230 else | |
| 231 { | |
| 232 $current_bracket = "$parms"; | |
| 233 } | |
| 234 push @current_bracket, $current_bracket; | |
| 235 } | |
| 236 elsif ($command eq "end-bracket") | |
| 237 { | |
| 238 pop @current_bracket; | |
| 239 } | |
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240 elsif ($command eq "override") |
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241 { |
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242 die "Cannot parse prototype $parms" unless $parms =~ /$wfun_re(?: ?(.*))?/; |
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243 my ($rettype, $fun, $args, $reason) = ($1, $2, $3, $4); |
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244 $files{$current_file}{$fun} = |
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245 [$command, $reason, $rettype, $fun, $args]; |
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246 $bracket{$current_file}{$fun} = |
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247 $current_bracket[$#current_bracket]; |
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248 } |
| 771 | 249 else |
| 250 { | |
| 251 my ($fun, $reason) = split /\s+/, $parms, 2; | |
| 252 $files{$current_file}{$fun} = [$command, $reason]; | |
| 253 $bracket{$current_file}{$fun} = | |
| 254 $current_bracket[$#current_bracket]; | |
| 255 } | |
| 256 } | |
| 257 else | |
| 258 { | |
| 259 print "WARNING: Unknown line $_\n"; | |
| 260 } | |
| 261 } | |
| 262 } | |
| 263 | |
| 264 | |
| 265 foreach my $file (keys %files) | |
| 266 { | |
| 267 $slurp = &FileContents ($file); | |
| 268 print "Processing file $file\n"; | |
| 269 print HOUT "\n/* Processing file $file */\n\n"; | |
| 270 my $totalspace = 70 - length ("Processing file $file"); | |
| 271 $totalspace = 0 if $totalspace < 0; | |
| 272 my $alignspaceleft = $totalspace / 2; | |
| 273 my $alignspaceright = ($totalspace + 1) / 2; | |
| 274 print COUT " | |
| 275 /*----------------------------------------------------------------------*/ | |
| 276 /*" . (" " x $alignspaceleft) . "Processing file $file" . | |
| 277 (" " x $alignspaceright) . "*/ | |
| 278 /*----------------------------------------------------------------------*/ | |
| 279 | |
| 280 "; | |
| 281 | |
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282 while ($slurp =~ /$wfun_re/g) |
| 771 | 283 { |
| 284 my ($rettype, $fun, $args) = ($1, $2, $3); | |
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285 |
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286 if ($processed{$fun}) |
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287 { |
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288 print "Warning: Function $fun already seen\n"; |
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289 next; |
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290 } |
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291 |
| 771 | 292 $processed{$fun} = 1; |
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293 |
| 771 | 294 print "Processing: $fun"; |
| 295 | |
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296 #my ($command, $reason) = ($files{$file}{$fun}[0], $files{$file}{$fun}[1]); |
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297 # Fuck perl! There seems to be no way to write something like |
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298 # my ($command, $reason) = @$files{$file}{$fun}; |
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299 # You have to use a temporary var. |
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300 my $filesarr = $files{$file}{$fun}; |
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301 my ($command, $reason) = @$filesarr; |
| 771 | 302 if (!defined ($command)) |
| 303 { | |
| 304 print " (no command found)\n"; | |
| 305 } | |
| 306 else | |
| 307 { | |
| 308 print "\n"; | |
| 309 my $bracket = $bracket{$file}{$fun}; | |
| 310 if (defined ($bracket)) | |
| 311 { | |
| 312 print HOUT "#if $bracket\n"; | |
| 313 print COUT "#if $bracket\n\n"; | |
| 314 } | |
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315 if ($command eq "no" || $command eq "review") |
| 771 | 316 { |
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317 $reason = "Function needs review to determine how to handle it" |
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318 if !defined ($reason) && $command eq "review"; |
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319 |
| 771 | 320 if (!defined ($reason)) |
| 321 { | |
| 322 print "WARNING: No reason given for `no' with function $fun\n"; | |
| 323 $reason = ""; | |
| 324 } | |
| 325 | |
| 326 print HOUT "#undef $fun\n"; | |
| 2367 | 327 (my $munged_reason = $reason) =~ s/[^A-Za-z0-9]/_/g; |
| 328 print HOUT "#define $fun error_$munged_reason\n"; | |
| 771 | 329 print COUT "/* Error if $fun used: $reason */\n\n"; |
| 330 } | |
| 331 elsif ($command eq "skip") | |
| 332 { | |
| 333 if (!defined ($reason)) | |
| 334 { | |
| 335 print "WARNING: No reason given for `skip' with function $fun\n"; | |
| 336 $reason = ""; | |
| 337 } | |
| 338 | |
| 339 print HOUT "/* Skipping $fun because $reason */\n"; | |
| 340 print COUT "/* Skipping $fun because $reason */\n\n"; | |
| 341 } | |
| 342 elsif ($command eq "soon") | |
| 343 { | |
| 344 $reason = "" if !defined ($reason); | |
| 345 | |
| 346 print HOUT "/* Not yet: $fun $reason */\n"; | |
| 347 print COUT "/* Not yet: $fun $reason */\n\n"; | |
| 348 } | |
| 349 else | |
| 350 { | |
| 351 my (@args, %argtype, %ansiarg, %xarg, $split_struct, | |
| 352 $split_rettype); | |
| 353 if ($command eq "split") | |
| 354 { | |
| 355 ($split_struct, $reason) = split /\s+/, $reason, 2; | |
| 356 } | |
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357 elsif ($command eq "override") |
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358 { |
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359 my ($nrettype, $nfun, $nargs) = @$filesarr[2 .. 4]; |
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360 $reason = "$reason.\n NOTE: " if $reason; |
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361 $reason = "${reason}Prototype manually overridden. |
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362 Header file claims: |
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363 $rettype $fun($args) |
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364 Overridden with: |
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365 $nrettype $nfun($nargs) |
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366 Differences in return-type qualifiers, e.g. WINAPI, are not important. |
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367 "; |
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368 ($rettype, $fun, $args) = ($nrettype, $nfun, $nargs); |
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369 } |
| 771 | 370 my $argno = 0; |
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371 while ($args =~ /$argmatch_re/g) |
| 771 | 372 { |
| 373 $argno++; | |
| 374 my ($argtype, $argname) = ($1, $2); | |
| 375 $argtype =~ s/\s*$//; | |
| 376 next if $argtype eq "void" || $argtype eq "VOID"; | |
| 377 $argname = "arg$argno" if !defined ($argname); | |
| 378 $argtype{$argname} = $argtype; | |
| 379 $ansiarg{$argname} = $argtype; | |
| 380 $ansiarg{$argname} =~ s/\bLPWSTR\b/LPSTR/; | |
| 381 $ansiarg{$argname} =~ s/\bLPCWSTR\b/LPCSTR/; | |
| 382 $xarg{$argname} = $argtype; | |
| 383 $xarg{$argname} =~ s/\bLPWSTR\b/Extbyte */; | |
| 384 $xarg{$argname} =~ s/\bLPCWSTR\b/const Extbyte */; | |
| 385 if (defined ($split_struct)) | |
| 386 { | |
| 387 my $fuck_cperl1 = "\\b${split_struct}W\\b"; | |
| 388 my $fuck_cperl2 = "${split_struct}A"; | |
| 389 $ansiarg{$argname} =~ s/$fuck_cperl1/$fuck_cperl2/; | |
| 390 } | |
| 391 push @args, $argname; | |
| 392 } | |
| 393 $rettype =~ s/\bSHSTDAPI_\((.*)\)/$1/; | |
| 394 $rettype =~ s/\s*WIN\w*?API\s*//g; | |
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395 $rettype =~ s/\bAPIENTRY\b\s*//; |
| 771 | 396 $rettype =~ s/\bSHSTDAPI\b/HRESULT/; |
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397 $rettype =~ s/\bextern\b\s*//; |
| 771 | 398 if ($rettype =~ /LPC?WSTR/) |
| 399 { | |
| 400 $split_rettype = 1; | |
| 401 $rettype =~ s/\bLPWSTR\b/Extbyte */; | |
| 402 $rettype =~ s/\bLPCWSTR\b/const Extbyte */; | |
| 403 } | |
| 800 | 404 print HOUT "#ifdef ERROR_WHEN_NONINTERCEPTED_FUNS_USED\n"; |
| 405 print HOUT "#undef $fun\n"; | |
| 2367 | 406 print HOUT "#define $fun error_use_qxe${fun}_or_${fun}A_and_${fun}W\n"; |
| 800 | 407 print HOUT "#endif\n"; |
| 771 | 408 if (defined ($reason)) |
| 409 { | |
| 410 print COUT "/* NOTE: $reason */\n"; | |
| 411 } | |
| 412 print COUT "$rettype\nqxe$fun ("; | |
| 413 print HOUT "$rettype qxe$fun ("; | |
| 414 my $first = 1; | |
| 415 if (!@args) | |
| 416 { | |
| 417 print COUT "void"; | |
| 418 print HOUT "void"; | |
| 419 } | |
| 420 else | |
| 421 { | |
| 422 foreach my $x (@args) | |
| 423 { | |
| 424 print COUT ", " if !$first; | |
| 425 print HOUT ", " if !$first; | |
| 426 $first = 0; | |
| 427 print COUT "$xarg{$x} $x"; | |
| 428 print HOUT "$xarg{$x} $x"; | |
| 429 } | |
| 430 } | |
| 431 print HOUT ");\n"; | |
| 432 print COUT ")\n{\n if (XEUNICODE_P)\n "; | |
| 433 if ($rettype ne "void" && $rettype ne "VOID") | |
| 434 { | |
| 435 print COUT "return "; | |
| 436 print COUT "($rettype) " if $split_rettype; | |
| 437 } | |
| 438 print COUT "${fun}W ("; | |
| 439 $first = 1; | |
| 440 foreach my $x (@args) | |
| 441 { | |
| 442 print COUT ", " if !$first; | |
| 443 $first = 0; | |
| 444 print COUT ($argtype{$x} eq $xarg{$x} ? $x : | |
| 445 "($argtype{$x}) $x"); | |
| 446 } | |
| 447 print COUT ");\n else\n "; | |
| 448 if ($rettype ne "void" && $rettype ne "VOID") | |
| 449 { | |
| 450 print COUT "return "; | |
| 451 print COUT "($rettype) " if $split_rettype; | |
| 452 } | |
| 453 print COUT "${fun}A ("; | |
| 454 $first = 1; | |
| 455 foreach my $x (@args) | |
| 456 { | |
| 457 print COUT ", " if !$first; | |
| 458 $first = 0; | |
| 459 print COUT ($argtype{$x} eq $ansiarg{$x} ? $x : | |
| 460 "($ansiarg{$x}) $x"); | |
| 461 } | |
| 462 print COUT ");\n}\n\n"; | |
| 463 } | |
| 464 if (defined ($bracket)) | |
| 465 { | |
| 466 print HOUT "#endif /* $bracket */\n"; | |
| 467 print COUT "#endif /* $bracket */\n\n"; | |
| 468 } | |
| 800 | 469 print HOUT "\n"; |
| 771 | 470 } |
| 471 } | |
| 472 } | |
| 473 | |
| 474 foreach my $file (keys %files) | |
| 475 { | |
| 476 foreach my $fun (keys %{$files{$file}}) | |
| 477 { | |
| 478 if (!$processed{$fun} && $files{$file}{$fun}[0] =~ /^(yes|soon|split)$/) | |
| 479 { | |
| 480 print "WARNING: Can't locate prototype for $fun\n"; | |
| 481 } | |
| 482 } | |
| 483 } | |
| 484 | |
| 485 | |
| 486 sub FileContents | |
| 487 { | |
| 488 local $/ = undef; | |
| 778 | 489 open (FILE, "< $dir/$_[0]") or die "$dir/$_[0]: $!"; |
| 771 | 490 my $retval = scalar <FILE>; |
| 491 # must hack away CRLF junk. | |
| 492 $retval =~ s/\r\n/\n/g; | |
| 493 return $retval; | |
| 494 } |
