| 1 | #!/usr/bin/perl -w |
| 2 | # |
| 3 | # Regenerate (overwriting only if changed): |
| 4 | # |
| 5 | # keywords.h keywords.c |
| 6 | # |
| 7 | # from information stored in the DATA section of this file. |
| 8 | # |
| 9 | # Accepts the standard regen_lib -q and -v args. |
| 10 | |
| 11 | use strict; |
| 12 | use Devel::Tokenizer::C 0.05; |
| 13 | |
| 14 | require 'regen/regen_lib.pl'; |
| 15 | |
| 16 | my $h = open_new('keywords.h', '>', |
| 17 | { by => 'regen/keywords.pl', from => 'its data', |
| 18 | file => 'keywords.h', style => '*', |
| 19 | copyright => [1994 .. 1997, 1999 .. 2002, 2005 .. 2007]}); |
| 20 | my $c = open_new('keywords.c', '>', |
| 21 | { by => 'regen/keywords.pl', from => 'its data', style => '*'}); |
| 22 | |
| 23 | my %by_strength; |
| 24 | |
| 25 | my $keynum = 0; |
| 26 | while (<DATA>) { |
| 27 | chop; |
| 28 | next unless $_; |
| 29 | next if /^#/; |
| 30 | my ($strength, $keyword) = /^([- +])([A-Z_a-z2]+)/; |
| 31 | die "Bad line '$_'" unless defined $strength; |
| 32 | print $h tab(5, "#define KEY_$keyword"), $keynum++, "\n"; |
| 33 | push @{$by_strength{$strength}}, $keyword; |
| 34 | } |
| 35 | |
| 36 | # If this hash changes, make sure the equivalent hash in |
| 37 | # dist/B-Deparse/Deparse.pm is also updated. |
| 38 | my %feature_kw = ( |
| 39 | given => 'switch', |
| 40 | when => 'switch', |
| 41 | default => 'switch', |
| 42 | # continue is already a keyword |
| 43 | break => 'switch', |
| 44 | |
| 45 | say => 'say', |
| 46 | |
| 47 | state => 'state', |
| 48 | |
| 49 | evalbytes=>'evalbytes', |
| 50 | |
| 51 | __SUB__ => '__SUB__', |
| 52 | |
| 53 | fc => 'fc', |
| 54 | ); |
| 55 | |
| 56 | my %pos = map { ($_ => 1) } @{$by_strength{'+'}}; |
| 57 | |
| 58 | my $t = Devel::Tokenizer::C->new(TokenFunc => \&perl_keyword, |
| 59 | TokenString => 'name', |
| 60 | StringLength => 'len', |
| 61 | MergeSwitches => 1, |
| 62 | ); |
| 63 | |
| 64 | $t->add_tokens(@{$by_strength{'+'}}, @{$by_strength{'-'}}, 'elseif'); |
| 65 | |
| 66 | my $switch = $t->generate(Indent => ' '); |
| 67 | |
| 68 | print $c <<"END"; |
| 69 | #include "EXTERN.h" |
| 70 | #define PERL_IN_KEYWORDS_C |
| 71 | #include "perl.h" |
| 72 | #include "keywords.h" |
| 73 | #include "feature.h" |
| 74 | |
| 75 | I32 |
| 76 | Perl_keyword (pTHX_ const char *name, I32 len, bool all_keywords) |
| 77 | { |
| 78 | dVAR; |
| 79 | |
| 80 | PERL_ARGS_ASSERT_KEYWORD; |
| 81 | |
| 82 | $switch |
| 83 | unknown: |
| 84 | return 0; |
| 85 | } |
| 86 | END |
| 87 | |
| 88 | sub perl_keyword |
| 89 | { |
| 90 | my $k = shift; |
| 91 | my $sign = $pos{$k} ? '' : '-'; |
| 92 | |
| 93 | if ($k eq 'elseif') { |
| 94 | return <<END; |
| 95 | Perl_ck_warner_d(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); |
| 96 | END |
| 97 | } |
| 98 | elsif (my $feature = $feature_kw{$k}) { |
| 99 | $feature =~ s/([\\"])/\\$1/g; |
| 100 | return <<END; |
| 101 | return (all_keywords || FEATURE_\U$feature\E_IS_ENABLED ? ${sign}KEY_$k : 0); |
| 102 | END |
| 103 | } |
| 104 | return <<END; |
| 105 | return ${sign}KEY_$k; |
| 106 | END |
| 107 | } |
| 108 | |
| 109 | read_only_bottom_close_and_rename($_, [$0]) foreach $c, $h; |
| 110 | |
| 111 | |
| 112 | # coresub_op in op.c expects __FILE__, __LINE__ and __PACKAGE__ to be the |
| 113 | # first three. |
| 114 | |
| 115 | __END__ |
| 116 | |
| 117 | NULL |
| 118 | -__FILE__ |
| 119 | -__LINE__ |
| 120 | -__PACKAGE__ |
| 121 | +__DATA__ |
| 122 | +__END__ |
| 123 | -__SUB__ |
| 124 | +AUTOLOAD |
| 125 | +BEGIN |
| 126 | +UNITCHECK |
| 127 | +DESTROY |
| 128 | +END |
| 129 | +INIT |
| 130 | +CHECK |
| 131 | -abs |
| 132 | -accept |
| 133 | -alarm |
| 134 | -and |
| 135 | -atan2 |
| 136 | -bind |
| 137 | -binmode |
| 138 | -bless |
| 139 | -break |
| 140 | -caller |
| 141 | -chdir |
| 142 | -chmod |
| 143 | -chomp |
| 144 | -chop |
| 145 | -chown |
| 146 | -chr |
| 147 | -chroot |
| 148 | -close |
| 149 | -closedir |
| 150 | -cmp |
| 151 | -connect |
| 152 | -continue |
| 153 | -cos |
| 154 | -crypt |
| 155 | -dbmclose |
| 156 | -dbmopen |
| 157 | +default |
| 158 | +defined |
| 159 | +delete |
| 160 | -die |
| 161 | +do |
| 162 | -dump |
| 163 | -each |
| 164 | +else |
| 165 | +elsif |
| 166 | -endgrent |
| 167 | -endhostent |
| 168 | -endnetent |
| 169 | -endprotoent |
| 170 | -endpwent |
| 171 | -endservent |
| 172 | -eof |
| 173 | -eq |
| 174 | +eval |
| 175 | -evalbytes |
| 176 | -exec |
| 177 | +exists |
| 178 | -exit |
| 179 | -exp |
| 180 | -fc |
| 181 | -fcntl |
| 182 | -fileno |
| 183 | -flock |
| 184 | +for |
| 185 | +foreach |
| 186 | -fork |
| 187 | +format |
| 188 | -formline |
| 189 | -ge |
| 190 | -getc |
| 191 | -getgrent |
| 192 | -getgrgid |
| 193 | -getgrnam |
| 194 | -gethostbyaddr |
| 195 | -gethostbyname |
| 196 | -gethostent |
| 197 | -getlogin |
| 198 | -getnetbyaddr |
| 199 | -getnetbyname |
| 200 | -getnetent |
| 201 | -getpeername |
| 202 | -getpgrp |
| 203 | -getppid |
| 204 | -getpriority |
| 205 | -getprotobyname |
| 206 | -getprotobynumber |
| 207 | -getprotoent |
| 208 | -getpwent |
| 209 | -getpwnam |
| 210 | -getpwuid |
| 211 | -getservbyname |
| 212 | -getservbyport |
| 213 | -getservent |
| 214 | -getsockname |
| 215 | -getsockopt |
| 216 | +given |
| 217 | +glob |
| 218 | -gmtime |
| 219 | +goto |
| 220 | +grep |
| 221 | -gt |
| 222 | -hex |
| 223 | +if |
| 224 | -index |
| 225 | -int |
| 226 | -ioctl |
| 227 | -join |
| 228 | -keys |
| 229 | -kill |
| 230 | +last |
| 231 | -lc |
| 232 | -lcfirst |
| 233 | -le |
| 234 | -length |
| 235 | -link |
| 236 | -listen |
| 237 | +local |
| 238 | -localtime |
| 239 | -lock |
| 240 | -log |
| 241 | -lstat |
| 242 | -lt |
| 243 | +m |
| 244 | +map |
| 245 | -mkdir |
| 246 | -msgctl |
| 247 | -msgget |
| 248 | -msgrcv |
| 249 | -msgsnd |
| 250 | +my |
| 251 | -ne |
| 252 | +next |
| 253 | +no |
| 254 | -not |
| 255 | -oct |
| 256 | -open |
| 257 | -opendir |
| 258 | -or |
| 259 | -ord |
| 260 | +our |
| 261 | -pack |
| 262 | +package |
| 263 | -pipe |
| 264 | -pop |
| 265 | +pos |
| 266 | +print |
| 267 | +printf |
| 268 | +prototype |
| 269 | -push |
| 270 | +q |
| 271 | +qq |
| 272 | +qr |
| 273 | -quotemeta |
| 274 | +qw |
| 275 | +qx |
| 276 | -rand |
| 277 | -read |
| 278 | -readdir |
| 279 | -readline |
| 280 | -readlink |
| 281 | -readpipe |
| 282 | -recv |
| 283 | +redo |
| 284 | -ref |
| 285 | -rename |
| 286 | +require |
| 287 | -reset |
| 288 | +return |
| 289 | -reverse |
| 290 | -rewinddir |
| 291 | -rindex |
| 292 | -rmdir |
| 293 | +s |
| 294 | +say |
| 295 | +scalar |
| 296 | -seek |
| 297 | -seekdir |
| 298 | -select |
| 299 | -semctl |
| 300 | -semget |
| 301 | -semop |
| 302 | -send |
| 303 | -setgrent |
| 304 | -sethostent |
| 305 | -setnetent |
| 306 | -setpgrp |
| 307 | -setpriority |
| 308 | -setprotoent |
| 309 | -setpwent |
| 310 | -setservent |
| 311 | -setsockopt |
| 312 | -shift |
| 313 | -shmctl |
| 314 | -shmget |
| 315 | -shmread |
| 316 | -shmwrite |
| 317 | -shutdown |
| 318 | -sin |
| 319 | -sleep |
| 320 | -socket |
| 321 | -socketpair |
| 322 | +sort |
| 323 | -splice |
| 324 | +split |
| 325 | -sprintf |
| 326 | -sqrt |
| 327 | -srand |
| 328 | -stat |
| 329 | +state |
| 330 | +study |
| 331 | +sub |
| 332 | -substr |
| 333 | -symlink |
| 334 | -syscall |
| 335 | -sysopen |
| 336 | -sysread |
| 337 | -sysseek |
| 338 | -system |
| 339 | -syswrite |
| 340 | -tell |
| 341 | -telldir |
| 342 | -tie |
| 343 | -tied |
| 344 | -time |
| 345 | -times |
| 346 | +tr |
| 347 | -truncate |
| 348 | -uc |
| 349 | -ucfirst |
| 350 | -umask |
| 351 | +undef |
| 352 | +unless |
| 353 | -unlink |
| 354 | -unpack |
| 355 | -unshift |
| 356 | -untie |
| 357 | +until |
| 358 | +use |
| 359 | -utime |
| 360 | -values |
| 361 | -vec |
| 362 | -wait |
| 363 | -waitpid |
| 364 | -wantarray |
| 365 | -warn |
| 366 | +when |
| 367 | +while |
| 368 | -write |
| 369 | -x |
| 370 | -xor |
| 371 | +y |