| Commit | Line | Data |
|---|
| 8d063cd8 |
1 | #!/bin/perl |
| 2 | |
| 3 | $indent = 4; |
| 4 | $shiftwidth = 4; |
| 5 | $l = '{'; $r = '}'; |
| 6 | $tempvar = '1'; |
| 7 | |
| 8 | while ($ARGV[0] =~ '^-') { |
| 9 | $_ = shift; |
| 10 | last if /^--/; |
| 11 | if (/^-D/) { |
| 12 | $debug++; |
| 13 | open(body,'>-'); |
| 14 | next; |
| 15 | } |
| 16 | if (/^-n/) { |
| 17 | $assumen++; |
| 18 | next; |
| 19 | } |
| 20 | if (/^-p/) { |
| 21 | $assumep++; |
| 22 | next; |
| 23 | } |
| 24 | die "I don't recognize this switch: $_"; |
| 25 | } |
| 26 | |
| 27 | unless ($debug) { |
| 28 | open(body,">/tmp/sperl$$") || do Die("Can't open temp file."); |
| 29 | } |
| 30 | |
| 31 | if (!$assumen && !$assumep) { |
| 32 | print body |
| 33 | 'while ($ARGV[0] =~ /^-/) { |
| 34 | $_ = shift; |
| 35 | last if /^--/; |
| 36 | if (/^-n/) { |
| 37 | $nflag++; |
| 38 | next; |
| 39 | } |
| 40 | die "I don\'t recognize this switch: $_"; |
| 41 | } |
| 42 | |
| 43 | '; |
| 44 | } |
| 45 | |
| 46 | print body ' |
| 47 | #ifdef PRINTIT |
| 48 | #ifdef ASSUMEP |
| 49 | $printit++; |
| 50 | #else |
| 51 | $printit++ unless $nflag; |
| 52 | #endif |
| 53 | #endif |
| 54 | line: while (<>) { |
| 55 | '; |
| 56 | |
| 57 | line: while (<>) { |
| 58 | s/[ \t]*(.*)\n$/$1/; |
| 59 | if (/^:/) { |
| 60 | s/^:[ \t]*//; |
| 61 | $label = do make_label($_); |
| 62 | if ($. == 1) { |
| 63 | $toplabel = $label; |
| 64 | } |
| 65 | $_ = "$label:"; |
| 66 | if ($lastlinewaslabel++) {$_ .= "\t;";} |
| 67 | if ($indent >= 2) { |
| 68 | $indent -= 2; |
| 69 | $indmod = 2; |
| 70 | } |
| 71 | next; |
| 72 | } else { |
| 73 | $lastlinewaslabel = ''; |
| 74 | } |
| 75 | $addr1 = ''; |
| 76 | $addr2 = ''; |
| 77 | if (s/^([0-9]+)//) { |
| 78 | $addr1 = "$1"; |
| 79 | } |
| 80 | elsif (s/^\$//) { |
| 81 | $addr1 = 'eof()'; |
| 82 | } |
| 83 | elsif (s|^/||) { |
| 84 | $addr1 = '/'; |
| 85 | delim: while (s:^([^(|)\\/]*)([(|)\\/])::) { |
| 86 | $prefix = $1; |
| 87 | $delim = $2; |
| 88 | if ($delim eq '\\') { |
| 89 | s/(.)(.*)/$2/; |
| 90 | $ch = $1; |
| 91 | $delim = '' if index("(|)",$ch) >= 0; |
| 92 | $delim .= $1; |
| 93 | } |
| 94 | elsif ($delim ne '/') { |
| 95 | $delim = '\\' . $delim; |
| 96 | } |
| 97 | $addr1 .= $prefix; |
| 98 | $addr1 .= $delim; |
| 99 | if ($delim eq '/') { |
| 100 | last delim; |
| 101 | } |
| 102 | } |
| 103 | } |
| 104 | if (s/^,//) { |
| 105 | if (s/^([0-9]+)//) { |
| 106 | $addr2 = "$1"; |
| 107 | } elsif (s/^\$//) { |
| 108 | $addr2 = "eof()"; |
| 109 | } elsif (s|^/||) { |
| 110 | $addr2 = '/'; |
| 111 | delim: while (s:^([^(|)\\/]*)([(|)\\/])::) { |
| 112 | $prefix = $1; |
| 113 | $delim = $2; |
| 114 | if ($delim eq '\\') { |
| 115 | s/(.)(.*)/$2/; |
| 116 | $ch = $1; |
| 117 | $delim = '' if index("(|)",$ch) >= 0; |
| 118 | $delim .= $1; |
| 119 | } |
| 120 | elsif ($delim ne '/') { |
| 121 | $delim = '\\' . $delim; |
| 122 | } |
| 123 | $addr2 .= $prefix; |
| 124 | $addr2 .= $delim; |
| 125 | if ($delim eq '/') { |
| 126 | last delim; |
| 127 | } |
| 128 | } |
| 129 | } else { |
| 130 | do Die("Invalid second address at line $.: $_"); |
| 131 | } |
| 132 | $addr1 .= " .. $addr2"; |
| 133 | } |
| 134 | # a { to keep vi happy |
| 135 | if ($_ eq '}') { |
| 136 | $indent -= 4; |
| 137 | next; |
| 138 | } |
| 139 | if (s/^!//) { |
| 140 | $if = 'unless'; |
| 141 | $else = "$r else $l\n"; |
| 142 | } else { |
| 143 | $if = 'if'; |
| 144 | $else = ''; |
| 145 | } |
| 146 | if (s/^{//) { # a } to keep vi happy |
| 147 | $indmod = 4; |
| 148 | $redo = $_; |
| 149 | $_ = ''; |
| 150 | $rmaybe = ''; |
| 151 | } else { |
| 152 | $rmaybe = "\n$r"; |
| 153 | if ($addr2 || $addr1) { |
| 154 | $space = substr(' ',0,$shiftwidth); |
| 155 | } else { |
| 156 | $space = ''; |
| 157 | } |
| 158 | $_ = do transmogrify(); |
| 159 | } |
| 160 | |
| 161 | if ($addr1) { |
| 162 | if ($_ !~ /[\n{}]/ && $rmaybe && !$change && |
| 163 | $_ !~ / if / && $_ !~ / unless /) { |
| 164 | s/;$/ $if $addr1;/; |
| 165 | $_ = substr($_,$shiftwidth,1000); |
| 166 | } else { |
| 167 | $command = $_; |
| 168 | $_ = "$if ($addr1) $l\n$change$command$rmaybe"; |
| 169 | } |
| 170 | $change = ''; |
| 171 | next line; |
| 172 | } |
| 173 | } continue { |
| 174 | @lines = split(/\n/,$_); |
| 175 | while ($#lines >= 0) { |
| 176 | $_ = shift(lines); |
| 177 | unless (s/^ *<<--//) { |
| 178 | print body substr("\t\t\t\t\t\t\t\t\t\t\t\t",0,$indent / 8), |
| 179 | substr(' ',0,$indent % 8); |
| 180 | } |
| 181 | print body $_, "\n"; |
| 182 | } |
| 183 | $indent += $indmod; |
| 184 | $indmod = 0; |
| 185 | if ($redo) { |
| 186 | $_ = $redo; |
| 187 | $redo = ''; |
| 188 | redo line; |
| 189 | } |
| 190 | } |
| 191 | |
| 192 | print body "}\n"; |
| 193 | if ($appendseen || $tseen || !$assumen) { |
| 194 | $printit++ if $dseen || (!$assumen && !$assumep); |
| 195 | print body ' |
| 196 | continue { |
| 197 | #ifdef PRINTIT |
| 198 | #ifdef DSEEN |
| 199 | #ifdef ASSUMEP |
| 200 | print if $printit++; |
| 201 | #else |
| 202 | if ($printit) { print;} else { $printit++ unless $nflag; } |
| 203 | #endif |
| 204 | #else |
| 205 | print if $printit; |
| 206 | #endif |
| 207 | #else |
| 208 | print; |
| 209 | #endif |
| 210 | #ifdef TSEEN |
| 211 | $tflag = \'\'; |
| 212 | #endif |
| 213 | #ifdef APPENDSEEN |
| 214 | if ($atext) { print $atext; $atext = \'\'; } |
| 215 | #endif |
| 216 | } |
| 217 | '; |
| 218 | } |
| 219 | |
| 220 | close body; |
| 221 | |
| 222 | unless ($debug) { |
| 223 | open(head,">/tmp/sperl2$$") || do Die("Can't open temp file 2.\n"); |
| 224 | print head "#define PRINTIT\n" if ($printit); |
| 225 | print head "#define APPENDSEEN\n" if ($appendseen); |
| 226 | print head "#define TSEEN\n" if ($tseen); |
| 227 | print head "#define DSEEN\n" if ($dseen); |
| 228 | print head "#define ASSUMEN\n" if ($assumen); |
| 229 | print head "#define ASSUMEP\n" if ($assumep); |
| 230 | if ($opens) {print head "$opens\n";} |
| 231 | open(body,"/tmp/sperl$$") || do Die("Can't reopen temp file."); |
| 232 | while (<body>) { |
| 233 | print head $_; |
| 234 | } |
| 235 | close head; |
| 236 | |
| 237 | print "#!/bin/perl\n\n"; |
| 238 | open(body,"cc -E /tmp/sperl2$$ |") || |
| 239 | do Die("Can't reopen temp file."); |
| 240 | while (<body>) { |
| 241 | /^# [0-9]/ && next; |
| 242 | /^[ \t]*$/ && next; |
| 243 | s/^<><>//; |
| 244 | print; |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | `/bin/rm -f /tmp/sperl$$ /tmp/sperl2$$`; |
| 249 | |
| 250 | sub Die { |
| 251 | `/bin/rm -f /tmp/sperl$$ /tmp/sperl2$$`; |
| 252 | die $_[0]; |
| 253 | } |
| 254 | sub make_filehandle { |
| 255 | $fname = $_ = $_[0]; |
| 256 | s/[^a-zA-Z]/_/g; |
| 257 | s/^_*//; |
| 258 | if (/^([a-z])([a-z]*)$/) { |
| 259 | $first = $1; |
| 260 | $rest = $2; |
| 261 | $first =~ y/a-z/A-Z/; |
| 262 | $_ = $first . $rest; |
| 263 | } |
| 264 | if (!$seen{$_}) { |
| 265 | $opens .= "open($_,'>$fname') || die \"Can't create $fname.\";\n"; |
| 266 | } |
| 267 | $seen{$_} = $_; |
| 268 | } |
| 269 | |
| 270 | sub make_label { |
| 271 | $label = $_[0]; |
| 272 | $label =~ s/[^a-zA-Z0-9]/_/g; |
| 273 | if ($label =~ /^[0-9_]/) { $label = 'L' . $label; } |
| 274 | $label = substr($label,0,8); |
| 275 | if ($label =~ /^([a-z])([a-z]*)$/) { |
| 276 | $first = $1; |
| 277 | $rest = $2; |
| 278 | $first =~ y/a-z/A-Z/; |
| 279 | $label = $first . $rest; |
| 280 | } |
| 281 | $label; |
| 282 | } |
| 283 | |
| 284 | sub transmogrify { |
| 285 | { # case |
| 286 | if (/^d/) { |
| 287 | $dseen++; |
| 288 | $_ = ' |
| 289 | <<--#ifdef PRINTIT |
| 290 | $printit = \'\'; |
| 291 | <<--#endif |
| 292 | next line;'; |
| 293 | next; |
| 294 | } |
| 295 | |
| 296 | if (/^n/) { |
| 297 | $_ = |
| 298 | '<<--#ifdef PRINTIT |
| 299 | <<--#ifdef DSEEN |
| 300 | <<--#ifdef ASSUMEP |
| 301 | print if $printit++; |
| 302 | <<--#else |
| 303 | if ($printit) { print;} else { $printit++ unless $nflag; } |
| 304 | <<--#endif |
| 305 | <<--#else |
| 306 | print if $printit; |
| 307 | <<--#endif |
| 308 | <<--#else |
| 309 | print; |
| 310 | <<--#endif |
| 311 | <<--#ifdef APPENDSEEN |
| 312 | if ($atext) {print $atext; $atext = \'\';} |
| 313 | <<--#endif |
| 314 | $_ = <>; |
| 315 | <<--#ifdef TSEEN |
| 316 | $tflag = \'\'; |
| 317 | <<--#endif'; |
| 318 | next; |
| 319 | } |
| 320 | |
| 321 | if (/^a/) { |
| 322 | $appendseen++; |
| 323 | $command = $space . '$atext .=' . "\n<<--'"; |
| 324 | $lastline = 0; |
| 325 | while (<>) { |
| 326 | s/^[ \t]*//; |
| 327 | s/^[\\]//; |
| 328 | unless (s|\\$||) { $lastline = 1;} |
| 329 | s/'/\\'/g; |
| 330 | s/^([ \t]*\n)/<><>$1/; |
| 331 | $command .= $_; |
| 332 | $command .= '<<--'; |
| 333 | last if $lastline; |
| 334 | } |
| 335 | $_ = $command . "';"; |
| 336 | last; |
| 337 | } |
| 338 | |
| 339 | if (/^[ic]/) { |
| 340 | if (/^c/) { $change = 1; } |
| 341 | $addr1 = '$iter = (' . $addr1 . ')'; |
| 342 | $command = $space . 'if ($iter == 1) { print' . "\n<<--'"; |
| 343 | $lastline = 0; |
| 344 | while (<>) { |
| 345 | s/^[ \t]*//; |
| 346 | s/^[\\]//; |
| 347 | unless (s/\\$//) { $lastline = 1;} |
| 348 | s/'/\\'/g; |
| 349 | s/^([ \t]*\n)/<><>$1/; |
| 350 | $command .= $_; |
| 351 | $command .= '<<--'; |
| 352 | last if $lastline; |
| 353 | } |
| 354 | $_ = $command . "';}"; |
| 355 | if ($change) { |
| 356 | $dseen++; |
| 357 | $change = "$_\n"; |
| 358 | $_ = " |
| 359 | <<--#ifdef PRINTIT |
| 360 | $space\$printit = ''; |
| 361 | <<--#endif |
| 362 | ${space}next line;"; |
| 363 | } |
| 364 | last; |
| 365 | } |
| 366 | |
| 367 | if (/^s/) { |
| 368 | $delim = substr($_,1,1); |
| 369 | $len = length($_); |
| 370 | $repl = $end = 0; |
| 371 | for ($i = 2; $i < $len; $i++) { |
| 372 | $c = substr($_,$i,1); |
| 373 | if ($c eq '\\') { |
| 374 | $i++; |
| 375 | if ($i >= $len) { |
| 376 | $_ .= 'n'; |
| 377 | $_ .= <>; |
| 378 | $len = length($_); |
| 379 | $_ = substr($_,0,--$len); |
| 380 | } |
| 381 | elsif (!$repl && index("(|)",substr($_,$i,1)) >= 0) { |
| 382 | $i--; |
| 383 | $len--; |
| 384 | $_ = substr($_,0,$i) . substr($_,$i+1,10000); |
| 385 | } |
| 386 | } |
| 387 | elsif ($c eq $delim) { |
| 388 | if ($repl) { |
| 389 | $end = $i; |
| 390 | last; |
| 391 | } else { |
| 392 | $repl = $i; |
| 393 | } |
| 394 | } |
| 395 | elsif (!$repl && index("(|)",$c) >= 0) { |
| 396 | $_ = substr($_,0,$i) . '\\' . substr($_,$i,10000); |
| 397 | $i++; |
| 398 | $len++; |
| 399 | } |
| 400 | } |
| 401 | print "repl $repl end $end $_\n"; |
| 402 | do Die("Malformed substitution at line $.") unless $end; |
| 403 | $pat = substr($_, 0, $repl + 1); |
| 404 | $repl = substr($_, $repl + 1, $end - $repl - 1); |
| 405 | $end = substr($_, $end + 1, 1000); |
| 406 | $dol = '$'; |
| 407 | $repl =~ s'&'$&'g; |
| 408 | $repl =~ s/[\\]([0-9])/$dol$1/g; |
| 409 | $subst = "$pat$repl$delim"; |
| 410 | $cmd = ''; |
| 411 | while ($end) { |
| 412 | if ($end =~ s/^g//) { $subst .= 'g'; next; } |
| 413 | if ($end =~ s/^p//) { $cmd .= ' && (print)'; next; } |
| 414 | if ($end =~ s/^w[ \t]*//) { |
| 415 | $fh = do make_filehandle($end); |
| 416 | $cmd .= " && (print $fh \$_)"; |
| 417 | $end = ''; |
| 418 | next; |
| 419 | } |
| 420 | do Die("Unrecognized substitution command ($end) at line $."); |
| 421 | } |
| 422 | $_ = $subst . $cmd . ';'; |
| 423 | next; |
| 424 | } |
| 425 | |
| 426 | if (/^p/) { |
| 427 | $_ = 'print;'; |
| 428 | next; |
| 429 | } |
| 430 | |
| 431 | if (/^w/) { |
| 432 | s/^w[ \t]*//; |
| 433 | $fh = do make_filehandle($_); |
| 434 | $_ = "print $fh \$_;"; |
| 435 | next; |
| 436 | } |
| 437 | |
| 438 | if (/^r/) { |
| 439 | $appendseen++; |
| 440 | s/^r[ \t]*//; |
| 441 | $file = $_; |
| 442 | $_ = "\$atext .= `cat $file 2>/dev/null`;"; |
| 443 | next; |
| 444 | } |
| 445 | |
| 446 | if (/^P/) { |
| 447 | $_ = |
| 448 | 'if (/(^[^\n]*\n)/) { |
| 449 | print $1; |
| 450 | }'; |
| 451 | next; |
| 452 | } |
| 453 | |
| 454 | if (/^D/) { |
| 455 | $_ = |
| 456 | 's/^[^\n]*\n//; |
| 457 | if ($_) {redo line;} |
| 458 | next line;'; |
| 459 | next; |
| 460 | } |
| 461 | |
| 462 | if (/^N/) { |
| 463 | $_ = ' |
| 464 | $_ .= <>; |
| 465 | <<--#ifdef TSEEN |
| 466 | $tflag = \'\'; |
| 467 | <<--#endif'; |
| 468 | next; |
| 469 | } |
| 470 | |
| 471 | if (/^h/) { |
| 472 | $_ = '$hold = $_;'; |
| 473 | next; |
| 474 | } |
| 475 | |
| 476 | if (/^H/) { |
| 477 | $_ = '$hold .= $_ ? $_ : "\n";'; |
| 478 | next; |
| 479 | } |
| 480 | |
| 481 | if (/^g/) { |
| 482 | $_ = '$_ = $hold;'; |
| 483 | next; |
| 484 | } |
| 485 | |
| 486 | if (/^G/) { |
| 487 | $_ = '$_ .= $hold ? $hold : "\n";'; |
| 488 | next; |
| 489 | } |
| 490 | |
| 491 | if (/^x/) { |
| 492 | $_ = '($_, $hold) = ($hold, $_);'; |
| 493 | next; |
| 494 | } |
| 495 | |
| 496 | if (/^b$/) { |
| 497 | $_ = 'next line;'; |
| 498 | next; |
| 499 | } |
| 500 | |
| 501 | if (/^b/) { |
| 502 | s/^b[ \t]*//; |
| 503 | $lab = do make_label($_); |
| 504 | if ($lab eq $toplabel) { |
| 505 | $_ = 'redo line;'; |
| 506 | } else { |
| 507 | $_ = "goto $lab;"; |
| 508 | } |
| 509 | next; |
| 510 | } |
| 511 | |
| 512 | if (/^t$/) { |
| 513 | $_ = 'next line if $tflag;'; |
| 514 | $tseen++; |
| 515 | next; |
| 516 | } |
| 517 | |
| 518 | if (/^t/) { |
| 519 | s/^t[ \t]*//; |
| 520 | $lab = do make_label($_); |
| 521 | if ($lab eq $toplabel) { |
| 522 | $_ = 'if ($tflag) {$tflag = \'\'; redo line;}'; |
| 523 | } else { |
| 524 | $_ = "if (\$tflag) {\$tflag = ''; goto $lab;}"; |
| 525 | } |
| 526 | $tseen++; |
| 527 | next; |
| 528 | } |
| 529 | |
| 530 | if (/^=/) { |
| 531 | $_ = 'print "$.\n";'; |
| 532 | next; |
| 533 | } |
| 534 | |
| 535 | if (/^q/) { |
| 536 | $_ = |
| 537 | 'close(ARGV); |
| 538 | @ARGV = (); |
| 539 | next line;'; |
| 540 | next; |
| 541 | } |
| 542 | } continue { |
| 543 | if ($space) { |
| 544 | s/^/$space/; |
| 545 | s/(\n)(.)/$1$space$2/g; |
| 546 | } |
| 547 | last; |
| 548 | } |
| 549 | $_; |
| 550 | } |
| 551 | |
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