Mercurial > hg > xemacs-beta
annotate lib-src/make-mswin-unicode.pl @ 4940:9113c5044de8
(for main branch) add long comment about types of magic symbols
-------------------- ChangeLog entries follow: --------------------
src/ChangeLog addition:
2010-01-20 Ben Wing <ben@xemacs.org>
* symbols.c:
Add long comment about the types of magic symbols, and the various
declarations that go along with them.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Wed, 20 Jan 2010 22:30:33 -0600 |
| parents | 49de55c09f18 |
| children | 70089046adef |
| 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 | |
| 13 ## XEmacs is free software; you can redistribute it and/or modify it | |
| 14 ## under the terms of the GNU General Public License as published by | |
| 15 ## the Free Software Foundation; either version 2, or (at your option) | |
| 16 ## any later version. | |
| 17 | |
| 18 ## XEmacs is distributed in the hope that it will be useful, but | |
| 19 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 20 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 21 ## General Public License for more details. | |
| 22 | |
| 23 ## You should have received a copy of the GNU General Public License | |
| 24 ## along with XEmacs; see the file COPYING. If not, write to the Free | |
| 25 ## Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
| 26 ## 02111-1307, USA. | |
| 27 | |
| 28 eval 'exec perl -w -S $0 ${1+"$@"}' | |
| 29 if 0; | |
| 30 | |
| 31 use strict; | |
| 32 use File::Basename; | |
| 33 use Getopt::Long; | |
| 34 | |
| 35 my ($myName, $myPath) = fileparse ($0); | |
| 36 | |
| 37 my $usage=" | |
| 38 Usage: $myName [--c-output FILE] [--h-output FILE] [--help] [FILES ...] | |
| 39 | |
| 40 The purpose of this script is to auto-generate Unicode-encapsulation | |
| 41 code for MS Windows library functions that come in two versions (ANSI | |
| 42 and Unicode). The MS Windows header files provide a way of | |
| 43 automatically calling the right version, but only at compile-time, | |
| 44 which is *NOT* sufficient for any real-world program. The solution is | |
| 45 run-time Unicode encapsulation, which is not conceptually difficult | |
| 46 but is time-consuming, and is not supported standardly only due to | |
| 47 evil marketing decisions made by Microsoft. See src/intl-win32.c | |
| 48 for more information. | |
| 49 | |
| 800 | 50 In XEmacs, this file is normally run using `nmake -f xemacs.mak |
| 51 unicode-encapsulate'. | |
| 52 | |
| 771 | 53 This script processes the specified files, looking for commands |
| 54 indicating library routines to Unicode-encapsulate, as follows: | |
| 55 | |
| 56 Portions of the files that should be processed are enclosed in lines | |
| 57 consisting only of the words \"begin-unicode-encapsulation-script\" | |
| 58 and \"end-unicode-encapsulation-script\". More than one section can | |
| 59 occur in a single file. Processed lines begin with a command word, | |
| 60 followed by one or more args (no quotes are necessary for spaces): | |
| 61 | |
| 62 file specifies a file to start reading from. | |
| 63 yes indicates a function to be automatically Unicode-encapsulated. | |
| 64 (All parameters either need no special processing or are LPTSTR or | |
| 65 LPCTSTR.) | |
| 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 $current_file; | |
| 157 my @current_bracket; | |
| 158 | |
| 159 while (<>) | |
| 160 { | |
| 161 chomp; | |
| 800 | 162 # remove trailing CR. #### Should not be necessary! Perl should be |
| 163 # opening these in text mode by default, as the docs claim, and | |
| 164 # automatically remove the CR's. | |
| 165 tr/\r//d; | |
| 771 | 166 |
| 167 if (/^begin-unicode-encapsulation-script$/) | |
| 168 { | |
| 169 $in_script = 1; | |
| 170 } | |
| 171 elsif (/^end-unicode-encapsulation-script$/) | |
| 172 { | |
| 173 $in_script = 0; | |
| 174 } | |
| 175 elsif ($in_script) | |
| 176 { | |
| 177 next if (m!^//!); | |
| 178 next if (/^[ \t]*$/); | |
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179 if (/(file|yes|soon|no|review|skip|split|begin-bracket|end-bracket)(?: (.*))?/) |
| 771 | 180 { |
| 181 my ($command, $parms) = ($1, $2); | |
| 778 | 182 if ($command eq "file") |
| 771 | 183 { |
| 184 $current_file = $parms; | |
| 185 } | |
| 186 elsif ($command eq "begin-bracket") | |
| 187 { | |
| 188 my $current_bracket = $current_bracket[$#current_bracket]; | |
| 189 if (defined ($current_bracket)) | |
| 190 { | |
| 191 $current_bracket .= "&& $parms"; | |
| 192 } | |
| 193 else | |
| 194 { | |
| 195 $current_bracket = "$parms"; | |
| 196 } | |
| 197 push @current_bracket, $current_bracket; | |
| 198 } | |
| 199 elsif ($command eq "end-bracket") | |
| 200 { | |
| 201 pop @current_bracket; | |
| 202 } | |
| 203 else | |
| 204 { | |
| 205 my ($fun, $reason) = split /\s+/, $parms, 2; | |
| 206 $files{$current_file}{$fun} = [$command, $reason]; | |
| 207 $bracket{$current_file}{$fun} = | |
| 208 $current_bracket[$#current_bracket]; | |
| 209 } | |
| 210 } | |
| 211 else | |
| 212 { | |
| 213 print "WARNING: Unknown line $_\n"; | |
| 214 } | |
| 215 } | |
| 216 } | |
| 217 | |
| 218 | |
| 219 foreach my $file (keys %files) | |
| 220 { | |
| 221 $slurp = &FileContents ($file); | |
| 222 print "Processing file $file\n"; | |
| 223 print HOUT "\n/* Processing file $file */\n\n"; | |
| 224 my $totalspace = 70 - length ("Processing file $file"); | |
| 225 $totalspace = 0 if $totalspace < 0; | |
| 226 my $alignspaceleft = $totalspace / 2; | |
| 227 my $alignspaceright = ($totalspace + 1) / 2; | |
| 228 print COUT " | |
| 229 /*----------------------------------------------------------------------*/ | |
| 230 /*" . (" " x $alignspaceleft) . "Processing file $file" . | |
| 231 (" " x $alignspaceright) . "*/ | |
| 232 /*----------------------------------------------------------------------*/ | |
| 233 | |
| 234 "; | |
| 235 | |
| 236 my ($ws_re, $must_ws_re, $tok_ch) = | |
| 237 ("\\s*", "\\s+", "\\w"); | |
| 238 # unfortunately there is no surefire way short of | |
| 239 # parsing all include files for typedefs to | |
| 240 # distinguish types from parameters, and prototypes | |
| 241 # appear in the include files both with and without | |
| 242 # parameters -- the latter kinds appear in a very | |
| 243 # different style and were obviously added later. so | |
| 244 # we rely on the fact that defined types are all | |
| 245 # upper-case, and parameters generally are not, and | |
| 246 # special-case the exceptions. | |
| 247 my $typeword_re = | |
| 248 # note the negative lookahead assertions: the first | |
| 249 # one excludes the words "X" and "Y" from type | |
| 250 # words, since they appear as parameter names in | |
| 251 # CreateWindowEx; the second prevents "void | |
| 252 # *Argument" from being parsed as a type "void *A" | |
| 253 # followed by a parameter "rgument". | |
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254 "(?:(?!(?:X\\b|Y\\b))(?:unsigned|int|long|const|short|va_list|[A-Z_0-9]+)(?!${tok_ch}))"; |
| 771 | 255 my $typetoken_re = "(?:$typeword_re$ws_re\\**$ws_re)"; |
| 256 my $arg_re = "(?:($typetoken_re+)(${tok_ch}+)?(?: OPTIONAL)?)"; | |
| 257 my $fun_re = "(SHSTDAPI_\\(${tok_ch}+\\)|${tok_ch}" . "[A-Za-z_0-9 \t\n\r\f]*?${tok_ch})${ws_re}(${tok_ch}+)W${ws_re}\\(((${ws_re}${arg_re}${ws_re},)*${ws_re}${arg_re}${ws_re})\\);"; | |
| 258 | |
| 259 # print "regexp: $fun_re\n"; | |
| 260 while ($slurp =~ /$fun_re/g) | |
| 261 { | |
| 262 my ($rettype, $fun, $args) = ($1, $2, $3); | |
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263 |
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264 if ($processed{$fun}) |
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265 { |
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266 print "Warning: Function $fun already seen\n"; |
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267 next; |
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268 } |
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269 |
| 771 | 270 $processed{$fun} = 1; |
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271 |
| 771 | 272 print "Processing: $fun"; |
| 273 | |
| 274 my ($command, $reason) = ($files{$file}{$fun}[0], $files{$file}{$fun}[1]); | |
| 275 if (!defined ($command)) | |
| 276 { | |
| 277 print " (no command found)\n"; | |
| 278 } | |
| 279 else | |
| 280 { | |
| 281 print "\n"; | |
| 282 my $bracket = $bracket{$file}{$fun}; | |
| 283 if (defined ($bracket)) | |
| 284 { | |
| 285 print HOUT "#if $bracket\n"; | |
| 286 print COUT "#if $bracket\n\n"; | |
| 287 } | |
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288 if ($command eq "no" || $command eq "review") |
| 771 | 289 { |
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290 $reason = "Function needs review to determine how to handle it" |
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291 if !defined ($reason) && $command eq "review"; |
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292 |
| 771 | 293 if (!defined ($reason)) |
| 294 { | |
| 295 print "WARNING: No reason given for `no' with function $fun\n"; | |
| 296 $reason = ""; | |
| 297 } | |
| 298 | |
| 299 print HOUT "#undef $fun\n"; | |
| 2367 | 300 (my $munged_reason = $reason) =~ s/[^A-Za-z0-9]/_/g; |
| 301 print HOUT "#define $fun error_$munged_reason\n"; | |
| 771 | 302 print COUT "/* Error if $fun used: $reason */\n\n"; |
| 303 } | |
| 304 elsif ($command eq "skip") | |
| 305 { | |
| 306 if (!defined ($reason)) | |
| 307 { | |
| 308 print "WARNING: No reason given for `skip' with function $fun\n"; | |
| 309 $reason = ""; | |
| 310 } | |
| 311 | |
| 312 print HOUT "/* Skipping $fun because $reason */\n"; | |
| 313 print COUT "/* Skipping $fun because $reason */\n\n"; | |
| 314 } | |
| 315 elsif ($command eq "soon") | |
| 316 { | |
| 317 $reason = "" if !defined ($reason); | |
| 318 | |
| 319 print HOUT "/* Not yet: $fun $reason */\n"; | |
| 320 print COUT "/* Not yet: $fun $reason */\n\n"; | |
| 321 } | |
| 322 else | |
| 323 { | |
| 324 my (@args, %argtype, %ansiarg, %xarg, $split_struct, | |
| 325 $split_rettype); | |
| 326 if ($command eq "split") | |
| 327 { | |
| 328 ($split_struct, $reason) = split /\s+/, $reason, 2; | |
| 329 } | |
| 330 my $argno = 0; | |
| 331 while ($args =~ /$arg_re/g) | |
| 332 { | |
| 333 $argno++; | |
| 334 my ($argtype, $argname) = ($1, $2); | |
| 335 $argtype =~ s/\s*$//; | |
| 336 next if $argtype eq "void" || $argtype eq "VOID"; | |
| 337 $argname = "arg$argno" if !defined ($argname); | |
| 338 $argtype{$argname} = $argtype; | |
| 339 $ansiarg{$argname} = $argtype; | |
| 340 $ansiarg{$argname} =~ s/\bLPWSTR\b/LPSTR/; | |
| 341 $ansiarg{$argname} =~ s/\bLPCWSTR\b/LPCSTR/; | |
| 342 $xarg{$argname} = $argtype; | |
| 343 $xarg{$argname} =~ s/\bLPWSTR\b/Extbyte */; | |
| 344 $xarg{$argname} =~ s/\bLPCWSTR\b/const Extbyte */; | |
| 345 if (defined ($split_struct)) | |
| 346 { | |
| 347 my $fuck_cperl1 = "\\b${split_struct}W\\b"; | |
| 348 my $fuck_cperl2 = "${split_struct}A"; | |
| 349 $ansiarg{$argname} =~ s/$fuck_cperl1/$fuck_cperl2/; | |
| 350 } | |
| 351 push @args, $argname; | |
| 352 } | |
| 353 $rettype =~ s/\bSHSTDAPI_\((.*)\)/$1/; | |
| 354 $rettype =~ s/\s*WIN\w*?API\s*//g; | |
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355 $rettype =~ s/\bAPIENTRY\b\s*//; |
| 771 | 356 $rettype =~ s/\bSHSTDAPI\b/HRESULT/; |
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357 $rettype =~ s/\bextern\b\s*//; |
| 771 | 358 if ($rettype =~ /LPC?WSTR/) |
| 359 { | |
| 360 $split_rettype = 1; | |
| 361 $rettype =~ s/\bLPWSTR\b/Extbyte */; | |
| 362 $rettype =~ s/\bLPCWSTR\b/const Extbyte */; | |
| 363 } | |
| 800 | 364 print HOUT "#ifdef ERROR_WHEN_NONINTERCEPTED_FUNS_USED\n"; |
| 365 print HOUT "#undef $fun\n"; | |
| 2367 | 366 print HOUT "#define $fun error_use_qxe${fun}_or_${fun}A_and_${fun}W\n"; |
| 800 | 367 print HOUT "#endif\n"; |
| 771 | 368 if (defined ($reason)) |
| 369 { | |
| 370 print COUT "/* NOTE: $reason */\n"; | |
| 371 } | |
| 372 print COUT "$rettype\nqxe$fun ("; | |
| 373 print HOUT "$rettype qxe$fun ("; | |
| 374 my $first = 1; | |
| 375 if (!@args) | |
| 376 { | |
| 377 print COUT "void"; | |
| 378 print HOUT "void"; | |
| 379 } | |
| 380 else | |
| 381 { | |
| 382 foreach my $x (@args) | |
| 383 { | |
| 384 print COUT ", " if !$first; | |
| 385 print HOUT ", " if !$first; | |
| 386 $first = 0; | |
| 387 print COUT "$xarg{$x} $x"; | |
| 388 print HOUT "$xarg{$x} $x"; | |
| 389 } | |
| 390 } | |
| 391 print HOUT ");\n"; | |
| 392 print COUT ")\n{\n if (XEUNICODE_P)\n "; | |
| 393 if ($rettype ne "void" && $rettype ne "VOID") | |
| 394 { | |
| 395 print COUT "return "; | |
| 396 print COUT "($rettype) " if $split_rettype; | |
| 397 } | |
| 398 print COUT "${fun}W ("; | |
| 399 $first = 1; | |
| 400 foreach my $x (@args) | |
| 401 { | |
| 402 print COUT ", " if !$first; | |
| 403 $first = 0; | |
| 404 print COUT ($argtype{$x} eq $xarg{$x} ? $x : | |
| 405 "($argtype{$x}) $x"); | |
| 406 } | |
| 407 print COUT ");\n else\n "; | |
| 408 if ($rettype ne "void" && $rettype ne "VOID") | |
| 409 { | |
| 410 print COUT "return "; | |
| 411 print COUT "($rettype) " if $split_rettype; | |
| 412 } | |
| 413 print COUT "${fun}A ("; | |
| 414 $first = 1; | |
| 415 foreach my $x (@args) | |
| 416 { | |
| 417 print COUT ", " if !$first; | |
| 418 $first = 0; | |
| 419 print COUT ($argtype{$x} eq $ansiarg{$x} ? $x : | |
| 420 "($ansiarg{$x}) $x"); | |
| 421 } | |
| 422 print COUT ");\n}\n\n"; | |
| 423 } | |
| 424 if (defined ($bracket)) | |
| 425 { | |
| 426 print HOUT "#endif /* $bracket */\n"; | |
| 427 print COUT "#endif /* $bracket */\n\n"; | |
| 428 } | |
| 800 | 429 print HOUT "\n"; |
| 771 | 430 } |
| 431 } | |
| 432 } | |
| 433 | |
| 434 foreach my $file (keys %files) | |
| 435 { | |
| 436 foreach my $fun (keys %{$files{$file}}) | |
| 437 { | |
| 438 if (!$processed{$fun} && $files{$file}{$fun}[0] =~ /^(yes|soon|split)$/) | |
| 439 { | |
| 440 print "WARNING: Can't locate prototype for $fun\n"; | |
| 441 } | |
| 442 } | |
| 443 } | |
| 444 | |
| 445 | |
| 446 sub FileContents | |
| 447 { | |
| 448 local $/ = undef; | |
| 778 | 449 open (FILE, "< $dir/$_[0]") or die "$dir/$_[0]: $!"; |
| 771 | 450 my $retval = scalar <FILE>; |
| 451 # must hack away CRLF junk. | |
| 452 $retval =~ s/\r\n/\n/g; | |
| 453 return $retval; | |
| 454 } |