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4633a7c4 |
1 | #!/usr/local/bin/perl |
2 | |
3 | use Config; |
4 | use File::Basename qw(&basename &dirname); |
8a5546a1 |
5 | use Cwd; |
4633a7c4 |
6 | |
7 | # List explicitly here the variables you want Configure to |
8 | # generate. Metaconfig only looks for shell variables, so you |
9 | # have to mention them as if they were shell variables, not |
10 | # %Config entries. Thus you write |
11 | # $startperl |
12 | # to ensure Configure will look for $Config{startperl}. |
13 | |
14 | # This forces PL files to create target in same directory as PL file. |
15 | # This is so that make depend always knows where to find PL derivatives. |
8a5546a1 |
16 | $origdir = cwd; |
44a8e56a |
17 | chdir dirname($0); |
18 | $file = basename($0, '.PL'); |
774d564b |
19 | $file .= '.com' if $^O eq 'VMS'; |
4633a7c4 |
20 | |
21 | open OUT,">$file" or die "Can't create $file: $!"; |
22 | |
23 | print "Extracting $file (with variable substitutions)\n"; |
24 | |
25 | # In this section, perl variables will be expanded during extraction. |
26 | # You can use $Config{...} to use Configure variables. |
27 | |
28 | print OUT <<"!GROK!THIS!"; |
5f05dabc |
29 | $Config{startperl} |
30 | eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}' |
31 | if \$running_under_some_shell; |
f70b6ff5 |
32 | \$startperl = "$Config{startperl}"; |
5f05dabc |
33 | \$perlpath = "$Config{perlpath}"; |
a687059c |
34 | !GROK!THIS! |
35 | |
4633a7c4 |
36 | # In the following, perl variables are not expanded during extraction. |
37 | |
38 | print OUT <<'!NO!SUBS!'; |
a687059c |
39 | |
79072805 |
40 | # $RCSfile: s2p.SH,v $$Revision: 4.1 $$Date: 92/08/07 18:29:23 $ |
378cc40b |
41 | # |
a687059c |
42 | # $Log: s2p.SH,v $ |
8d063cd8 |
43 | |
d83e3bda |
44 | =head1 NAME |
45 | |
46 | s2p - Sed to Perl translator |
47 | |
48 | =head1 SYNOPSIS |
49 | |
50 | B<s2p [options] filename> |
51 | |
52 | =head1 DESCRIPTION |
53 | |
54 | I<S2p> takes a sed script specified on the command line (or from |
55 | standard input) and produces a comparable I<perl> script on the |
56 | standard output. |
57 | |
58 | =head2 Options |
59 | |
60 | Options include: |
61 | |
62 | =over 5 |
63 | |
64 | =item B<-DE<lt>numberE<gt>> |
65 | |
66 | sets debugging flags. |
67 | |
68 | =item B<-n> |
69 | |
70 | specifies that this sed script was always invoked with a B<sed -n>. |
71 | Otherwise a switch parser is prepended to the front of the script. |
72 | |
73 | =item B<-p> |
74 | |
75 | specifies that this sed script was never invoked with a B<sed -n>. |
76 | Otherwise a switch parser is prepended to the front of the script. |
77 | |
78 | =back |
79 | |
80 | =head2 Considerations |
81 | |
82 | The perl script produced looks very sed-ish, and there may very well |
83 | be better ways to express what you want to do in perl. For instance, |
84 | s2p does not make any use of the split operator, but you might want |
85 | to. |
86 | |
87 | The perl script you end up with may be either faster or slower than |
88 | the original sed script. If you're only interested in speed you'll |
89 | just have to try it both ways. Of course, if you want to do something |
90 | sed doesn't do, you have no choice. It's often possible to speed up |
91 | the perl script by various methods, such as deleting all references to |
92 | $\ and chop. |
93 | |
94 | =head1 ENVIRONMENT |
95 | |
96 | S2p uses no environment variables. |
97 | |
98 | =head1 AUTHOR |
99 | |
55497cff |
100 | Larry Wall E<lt>F<larry@wall.org>E<gt> |
d83e3bda |
101 | |
102 | =head1 FILES |
103 | |
104 | =head1 SEE ALSO |
105 | |
106 | perl The perl compiler/interpreter |
107 | |
108 | a2p awk to perl translator |
109 | |
110 | =head1 DIAGNOSTICS |
111 | |
112 | =head1 BUGS |
113 | |
114 | =cut |
115 | |
8d063cd8 |
116 | $indent = 4; |
117 | $shiftwidth = 4; |
118 | $l = '{'; $r = '}'; |
8d063cd8 |
119 | |
0a12ae7d |
120 | while ($ARGV[0] =~ /^-/) { |
8d063cd8 |
121 | $_ = shift; |
122 | last if /^--/; |
123 | if (/^-D/) { |
124 | $debug++; |
0a12ae7d |
125 | open(BODY,'>-'); |
8d063cd8 |
126 | next; |
127 | } |
128 | if (/^-n/) { |
129 | $assumen++; |
130 | next; |
131 | } |
132 | if (/^-p/) { |
133 | $assumep++; |
134 | next; |
135 | } |
378cc40b |
136 | die "I don't recognize this switch: $_\n"; |
8d063cd8 |
137 | } |
138 | |
139 | unless ($debug) { |
1aa91729 |
140 | open(BODY,"+>/tmp/sperl$$") || |
0a12ae7d |
141 | &Die("Can't open temp file: $!\n"); |
8d063cd8 |
142 | } |
143 | |
144 | if (!$assumen && !$assumep) { |
9ef589d8 |
145 | print BODY &q(<<'EOT'); |
146 | : while ($ARGV[0] =~ /^-/) { |
147 | : $_ = shift; |
148 | : last if /^--/; |
149 | : if (/^-n/) { |
150 | : $nflag++; |
151 | : next; |
152 | : } |
153 | : die "I don't recognize this switch: $_\\n"; |
154 | : } |
155 | : |
0a12ae7d |
156 | EOT |
8d063cd8 |
157 | } |
158 | |
9ef589d8 |
159 | print BODY &q(<<'EOT'); |
160 | : #ifdef PRINTIT |
161 | : #ifdef ASSUMEP |
162 | : $printit++; |
163 | : #else |
164 | : $printit++ unless $nflag; |
165 | : #endif |
166 | : #endif |
167 | : <><> |
168 | : $\ = "\n"; # automatically add newline on print |
169 | : <><> |
170 | : #ifdef TOPLABEL |
171 | : LINE: |
172 | : while (chop($_ = <>)) { |
173 | : #else |
174 | : LINE: |
175 | : while (<>) { |
176 | : chop; |
177 | : #endif |
0a12ae7d |
178 | EOT |
179 | |
9ef589d8 |
180 | LINE: |
181 | while (<>) { |
0a12ae7d |
182 | |
183 | # Wipe out surrounding whitespace. |
8d063cd8 |
184 | |
8d063cd8 |
185 | s/[ \t]*(.*)\n$/$1/; |
0a12ae7d |
186 | |
187 | # Perhaps it's a label/comment. |
188 | |
8d063cd8 |
189 | if (/^:/) { |
190 | s/^:[ \t]*//; |
0a12ae7d |
191 | $label = &make_label($_); |
8d063cd8 |
192 | if ($. == 1) { |
193 | $toplabel = $label; |
9ef589d8 |
194 | if (/^(top|(re)?start|redo|begin(ning)|again|input)$/i) { |
195 | $_ = <>; |
196 | redo LINE; # Never referenced, so delete it if not a comment. |
197 | } |
8d063cd8 |
198 | } |
199 | $_ = "$label:"; |
ffed7fef |
200 | if ($lastlinewaslabel++) { |
201 | $indent += 4; |
0a12ae7d |
202 | print BODY &tab, ";\n"; |
ffed7fef |
203 | $indent -= 4; |
204 | } |
8d063cd8 |
205 | if ($indent >= 2) { |
206 | $indent -= 2; |
207 | $indmod = 2; |
208 | } |
209 | next; |
210 | } else { |
211 | $lastlinewaslabel = ''; |
212 | } |
0a12ae7d |
213 | |
214 | # Look for one or two address clauses |
215 | |
8d063cd8 |
216 | $addr1 = ''; |
217 | $addr2 = ''; |
218 | if (s/^([0-9]+)//) { |
219 | $addr1 = "$1"; |
9ef589d8 |
220 | $addr1 = "\$. == $addr1" unless /^,/; |
8d063cd8 |
221 | } |
222 | elsif (s/^\$//) { |
223 | $addr1 = 'eof()'; |
224 | } |
225 | elsif (s|^/||) { |
0a12ae7d |
226 | $addr1 = &fetchpat('/'); |
8d063cd8 |
227 | } |
228 | if (s/^,//) { |
229 | if (s/^([0-9]+)//) { |
230 | $addr2 = "$1"; |
231 | } elsif (s/^\$//) { |
232 | $addr2 = "eof()"; |
233 | } elsif (s|^/||) { |
0a12ae7d |
234 | $addr2 = &fetchpat('/'); |
8d063cd8 |
235 | } else { |
0a12ae7d |
236 | &Die("Invalid second address at line $.\n"); |
8d063cd8 |
237 | } |
2b69d0c2 |
238 | if ($addr2 =~ /^\d+$/) { |
239 | $addr1 .= "..$addr2"; |
240 | } |
241 | else { |
242 | $addr1 .= "...$addr2"; |
243 | } |
8d063cd8 |
244 | } |
0a12ae7d |
245 | |
246 | # Now we check for metacommands {, }, and ! and worry |
247 | # about indentation. |
248 | |
378cc40b |
249 | s/^[ \t]+//; |
0a12ae7d |
250 | # a { to keep vi happy |
8d063cd8 |
251 | if ($_ eq '}') { |
252 | $indent -= 4; |
253 | next; |
254 | } |
255 | if (s/^!//) { |
256 | $if = 'unless'; |
257 | $else = "$r else $l\n"; |
258 | } else { |
259 | $if = 'if'; |
260 | $else = ''; |
261 | } |
262 | if (s/^{//) { # a } to keep vi happy |
263 | $indmod = 4; |
264 | $redo = $_; |
265 | $_ = ''; |
266 | $rmaybe = ''; |
267 | } else { |
268 | $rmaybe = "\n$r"; |
269 | if ($addr2 || $addr1) { |
a687059c |
270 | $space = ' ' x $shiftwidth; |
8d063cd8 |
271 | } else { |
272 | $space = ''; |
273 | } |
0a12ae7d |
274 | $_ = &transmogrify(); |
8d063cd8 |
275 | } |
276 | |
0a12ae7d |
277 | # See if we can optimize to modifier form. |
278 | |
8d063cd8 |
279 | if ($addr1) { |
280 | if ($_ !~ /[\n{}]/ && $rmaybe && !$change && |
281 | $_ !~ / if / && $_ !~ / unless /) { |
282 | s/;$/ $if $addr1;/; |
283 | $_ = substr($_,$shiftwidth,1000); |
284 | } else { |
0a12ae7d |
285 | $_ = "$if ($addr1) $l\n$change$_$rmaybe"; |
8d063cd8 |
286 | } |
287 | $change = ''; |
0a12ae7d |
288 | next LINE; |
8d063cd8 |
289 | } |
290 | } continue { |
291 | @lines = split(/\n/,$_); |
0a12ae7d |
292 | for (@lines) { |
8d063cd8 |
293 | unless (s/^ *<<--//) { |
0a12ae7d |
294 | print BODY &tab; |
8d063cd8 |
295 | } |
0a12ae7d |
296 | print BODY $_, "\n"; |
8d063cd8 |
297 | } |
298 | $indent += $indmod; |
299 | $indmod = 0; |
300 | if ($redo) { |
301 | $_ = $redo; |
302 | $redo = ''; |
0a12ae7d |
303 | redo LINE; |
8d063cd8 |
304 | } |
305 | } |
ffed7fef |
306 | if ($lastlinewaslabel++) { |
307 | $indent += 4; |
0a12ae7d |
308 | print BODY &tab, ";\n"; |
ffed7fef |
309 | $indent -= 4; |
310 | } |
8d063cd8 |
311 | |
8d063cd8 |
312 | if ($appendseen || $tseen || !$assumen) { |
313 | $printit++ if $dseen || (!$assumen && !$assumep); |
9ef589d8 |
314 | print BODY &q(<<'EOT'); |
315 | : #ifdef SAWNEXT |
316 | : } |
317 | : continue { |
318 | : #endif |
319 | : #ifdef PRINTIT |
320 | : #ifdef DSEEN |
321 | : #ifdef ASSUMEP |
322 | : print if $printit++; |
323 | : #else |
324 | : if ($printit) |
325 | : { print; } |
326 | : else |
327 | : { $printit++ unless $nflag; } |
328 | : #endif |
329 | : #else |
330 | : print if $printit; |
331 | : #endif |
332 | : #else |
333 | : print; |
334 | : #endif |
335 | : #ifdef TSEEN |
336 | : $tflag = 0; |
337 | : #endif |
338 | : #ifdef APPENDSEEN |
339 | : if ($atext) { chop $atext; print $atext; $atext = ''; } |
340 | : #endif |
341 | EOT |
a0a15abb |
342 | } |
9ef589d8 |
343 | |
344 | print BODY &q(<<'EOT'); |
345 | : } |
0a12ae7d |
346 | EOT |
8d063cd8 |
347 | |
8d063cd8 |
348 | unless ($debug) { |
8d063cd8 |
349 | |
9ef589d8 |
350 | print &q(<<"EOT"); |
4633a7c4 |
351 | : $startperl |
5f05dabc |
352 | : eval 'exec $perlpath -S \$0 \${1+"\$@"}' |
9ef589d8 |
353 | : if \$running_under_some_shell; |
354 | : |
0a12ae7d |
355 | EOT |
1aa91729 |
356 | print"$opens\n" if $opens; |
357 | seek(BODY, 0, 0) || die "Can't rewind temp file: $!\n"; |
0a12ae7d |
358 | while (<BODY>) { |
8d063cd8 |
359 | /^[ \t]*$/ && next; |
1aa91729 |
360 | /^#ifdef (\w+)/ && ((${lc $1} || &skip), next); |
361 | /^#else/ && (&skip, next); |
362 | /^#endif/ && next; |
8d063cd8 |
363 | s/^<><>//; |
364 | print; |
365 | } |
366 | } |
367 | |
0a12ae7d |
368 | &Cleanup; |
369 | exit; |
8d063cd8 |
370 | |
0a12ae7d |
371 | sub Cleanup { |
1aa91729 |
372 | unlink "/tmp/sperl$$"; |
0a12ae7d |
373 | } |
8d063cd8 |
374 | sub Die { |
0a12ae7d |
375 | &Cleanup; |
8d063cd8 |
376 | die $_[0]; |
377 | } |
0a12ae7d |
378 | sub tab { |
379 | "\t" x ($indent / 8) . ' ' x ($indent % 8); |
380 | } |
8d063cd8 |
381 | sub make_filehandle { |
0a12ae7d |
382 | local($_) = $_[0]; |
383 | local($fname) = $_; |
9ef589d8 |
384 | if (!$seen{$fname}) { |
385 | $_ = "FH_" . $_ if /^\d/; |
386 | s/[^a-zA-Z0-9]/_/g; |
387 | s/^_*//; |
388 | $_ = "\U$_"; |
389 | if ($fhseen{$_}) { |
390 | for ($tmp = "a"; $fhseen{"$_$tmp"}; $a++) {} |
391 | $_ .= $tmp; |
392 | } |
393 | $fhseen{$_} = 1; |
394 | $opens .= &q(<<"EOT"); |
395 | : open($_, '>$fname') || die "Can't create $fname: \$!"; |
0a12ae7d |
396 | EOT |
9ef589d8 |
397 | $seen{$fname} = $_; |
8d063cd8 |
398 | } |
9ef589d8 |
399 | $seen{$fname}; |
8d063cd8 |
400 | } |
401 | |
402 | sub make_label { |
0a12ae7d |
403 | local($label) = @_; |
8d063cd8 |
404 | $label =~ s/[^a-zA-Z0-9]/_/g; |
405 | if ($label =~ /^[0-9_]/) { $label = 'L' . $label; } |
406 | $label = substr($label,0,8); |
0a12ae7d |
407 | |
408 | # Could be a reserved word, so capitalize it. |
409 | substr($label,0,1) =~ y/a-z/A-Z/ |
410 | if $label =~ /^[a-z]/; |
411 | |
8d063cd8 |
412 | $label; |
413 | } |
414 | |
415 | sub transmogrify { |
416 | { # case |
417 | if (/^d/) { |
418 | $dseen++; |
9ef589d8 |
419 | chop($_ = &q(<<'EOT')); |
420 | : <<--#ifdef PRINTIT |
421 | : $printit = 0; |
422 | : <<--#endif |
423 | : next LINE; |
0a12ae7d |
424 | EOT |
9ef589d8 |
425 | $sawnext++; |
8d063cd8 |
426 | next; |
427 | } |
428 | |
429 | if (/^n/) { |
9ef589d8 |
430 | chop($_ = &q(<<'EOT')); |
431 | : <<--#ifdef PRINTIT |
432 | : <<--#ifdef DSEEN |
433 | : <<--#ifdef ASSUMEP |
434 | : print if $printit++; |
435 | : <<--#else |
436 | : if ($printit) |
437 | : { print; } |
438 | : else |
439 | : { $printit++ unless $nflag; } |
440 | : <<--#endif |
441 | : <<--#else |
442 | : print if $printit; |
443 | : <<--#endif |
444 | : <<--#else |
445 | : print; |
446 | : <<--#endif |
447 | : <<--#ifdef APPENDSEEN |
448 | : if ($atext) {chop $atext; print $atext; $atext = '';} |
449 | : <<--#endif |
450 | : $_ = <>; |
451 | : chop; |
452 | : <<--#ifdef TSEEN |
453 | : $tflag = 0; |
454 | : <<--#endif |
0a12ae7d |
455 | EOT |
8d063cd8 |
456 | next; |
457 | } |
458 | |
459 | if (/^a/) { |
460 | $appendseen++; |
9ef589d8 |
461 | $command = $space . "\$atext .= <<'End_Of_Text';\n<<--"; |
8d063cd8 |
462 | $lastline = 0; |
463 | while (<>) { |
464 | s/^[ \t]*//; |
465 | s/^[\\]//; |
466 | unless (s|\\$||) { $lastline = 1;} |
8d063cd8 |
467 | s/^([ \t]*\n)/<><>$1/; |
468 | $command .= $_; |
469 | $command .= '<<--'; |
470 | last if $lastline; |
471 | } |
9ef589d8 |
472 | $_ = $command . "End_Of_Text"; |
8d063cd8 |
473 | last; |
474 | } |
475 | |
476 | if (/^[ic]/) { |
477 | if (/^c/) { $change = 1; } |
9ef589d8 |
478 | $addr1 = 1 if $addr1 eq ''; |
8d063cd8 |
479 | $addr1 = '$iter = (' . $addr1 . ')'; |
9ef589d8 |
480 | $command = $space . |
481 | " if (\$iter == 1) { print <<'End_Of_Text'; }\n<<--"; |
8d063cd8 |
482 | $lastline = 0; |
483 | while (<>) { |
484 | s/^[ \t]*//; |
485 | s/^[\\]//; |
486 | unless (s/\\$//) { $lastline = 1;} |
487 | s/'/\\'/g; |
488 | s/^([ \t]*\n)/<><>$1/; |
489 | $command .= $_; |
490 | $command .= '<<--'; |
491 | last if $lastline; |
492 | } |
9ef589d8 |
493 | $_ = $command . "End_Of_Text"; |
8d063cd8 |
494 | if ($change) { |
495 | $dseen++; |
496 | $change = "$_\n"; |
9ef589d8 |
497 | chop($_ = &q(<<"EOT")); |
498 | : <<--#ifdef PRINTIT |
499 | : $space\$printit = 0; |
500 | : <<--#endif |
501 | : ${space}next LINE; |
0a12ae7d |
502 | EOT |
9ef589d8 |
503 | $sawnext++; |
8d063cd8 |
504 | } |
505 | last; |
506 | } |
507 | |
508 | if (/^s/) { |
509 | $delim = substr($_,1,1); |
510 | $len = length($_); |
511 | $repl = $end = 0; |
a687059c |
512 | $inbracket = 0; |
8d063cd8 |
513 | for ($i = 2; $i < $len; $i++) { |
514 | $c = substr($_,$i,1); |
a687059c |
515 | if ($c eq $delim) { |
516 | if ($inbracket) { |
0a12ae7d |
517 | substr($_, $i, 0) = '\\'; |
a687059c |
518 | $i++; |
519 | $len++; |
520 | } |
521 | else { |
522 | if ($repl) { |
523 | $end = $i; |
524 | last; |
525 | } else { |
526 | $repl = $i; |
527 | } |
528 | } |
529 | } |
530 | elsif ($c eq '\\') { |
8d063cd8 |
531 | $i++; |
532 | if ($i >= $len) { |
533 | $_ .= 'n'; |
534 | $_ .= <>; |
535 | $len = length($_); |
536 | $_ = substr($_,0,--$len); |
537 | } |
00bf170e |
538 | elsif (substr($_,$i,1) =~ /^[n]$/) { |
539 | ; |
540 | } |
0a12ae7d |
541 | elsif (!$repl && |
542 | substr($_,$i,1) =~ /^[(){}\w]$/) { |
8d063cd8 |
543 | $i--; |
544 | $len--; |
0a12ae7d |
545 | substr($_, $i, 1) = ''; |
8d063cd8 |
546 | } |
0a12ae7d |
547 | elsif (!$repl && |
548 | substr($_,$i,1) =~ /^[<>]$/) { |
9f68db38 |
549 | substr($_,$i,1) = 'b'; |
550 | } |
2b69d0c2 |
551 | elsif ($repl && substr($_,$i,1) =~ /^\d$/) { |
552 | substr($_,$i-1,1) = '$'; |
553 | } |
554 | } |
c602c2ef |
555 | elsif ($c eq '@') { |
556 | substr($_, $i, 0) = '\\'; |
557 | $i++; |
558 | $len++; |
559 | } |
2b69d0c2 |
560 | elsif ($c eq '&' && $repl) { |
561 | substr($_, $i, 0) = '$'; |
562 | $i++; |
563 | $len++; |
564 | } |
565 | elsif ($c eq '$' && $repl) { |
566 | substr($_, $i, 0) = '\\'; |
567 | $i++; |
568 | $len++; |
8d063cd8 |
569 | } |
a687059c |
570 | elsif ($c eq '[' && !$repl) { |
571 | $i++ if substr($_,$i,1) eq '^'; |
572 | $i++ if substr($_,$i,1) eq ']'; |
573 | $inbracket = 1; |
8d063cd8 |
574 | } |
a687059c |
575 | elsif ($c eq ']') { |
576 | $inbracket = 0; |
577 | } |
9ef589d8 |
578 | elsif ($c eq "\t") { |
579 | substr($_, $i, 1) = '\\t'; |
580 | $i++; |
581 | $len++; |
582 | } |
ae986130 |
583 | elsif (!$repl && index("()+",$c) >= 0) { |
0a12ae7d |
584 | substr($_, $i, 0) = '\\'; |
8d063cd8 |
585 | $i++; |
586 | $len++; |
587 | } |
588 | } |
0a12ae7d |
589 | &Die("Malformed substitution at line $.\n") |
590 | unless $end; |
8d063cd8 |
591 | $pat = substr($_, 0, $repl + 1); |
0a12ae7d |
592 | $repl = substr($_, $repl+1, $end-$repl-1); |
8d063cd8 |
593 | $end = substr($_, $end + 1, 1000); |
9ef589d8 |
594 | &simplify($pat); |
8d063cd8 |
595 | $subst = "$pat$repl$delim"; |
596 | $cmd = ''; |
597 | while ($end) { |
0a12ae7d |
598 | if ($end =~ s/^g//) { |
599 | $subst .= 'g'; |
600 | next; |
601 | } |
602 | if ($end =~ s/^p//) { |
603 | $cmd .= ' && (print)'; |
604 | next; |
605 | } |
8d063cd8 |
606 | if ($end =~ s/^w[ \t]*//) { |
0a12ae7d |
607 | $fh = &make_filehandle($end); |
8d063cd8 |
608 | $cmd .= " && (print $fh \$_)"; |
609 | $end = ''; |
610 | next; |
611 | } |
0a12ae7d |
612 | &Die("Unrecognized substitution command". |
613 | "($end) at line $.\n"); |
8d063cd8 |
614 | } |
9ef589d8 |
615 | chop ($_ = &q(<<"EOT")); |
616 | : <<--#ifdef TSEEN |
617 | : $subst && \$tflag++$cmd; |
618 | : <<--#else |
619 | : $subst$cmd; |
620 | : <<--#endif |
0a12ae7d |
621 | EOT |
8d063cd8 |
622 | next; |
623 | } |
624 | |
625 | if (/^p/) { |
626 | $_ = 'print;'; |
627 | next; |
628 | } |
629 | |
630 | if (/^w/) { |
631 | s/^w[ \t]*//; |
0a12ae7d |
632 | $fh = &make_filehandle($_); |
8d063cd8 |
633 | $_ = "print $fh \$_;"; |
634 | next; |
635 | } |
636 | |
637 | if (/^r/) { |
638 | $appendseen++; |
639 | s/^r[ \t]*//; |
640 | $file = $_; |
641 | $_ = "\$atext .= `cat $file 2>/dev/null`;"; |
642 | next; |
643 | } |
644 | |
645 | if (/^P/) { |
9ef589d8 |
646 | $_ = 'print $1 if /^(.*)/;'; |
8d063cd8 |
647 | next; |
648 | } |
649 | |
650 | if (/^D/) { |
9ef589d8 |
651 | chop($_ = &q(<<'EOT')); |
652 | : s/^.*\n?//; |
653 | : redo LINE if $_; |
654 | : next LINE; |
0a12ae7d |
655 | EOT |
9ef589d8 |
656 | $sawnext++; |
8d063cd8 |
657 | next; |
658 | } |
659 | |
660 | if (/^N/) { |
9ef589d8 |
661 | chop($_ = &q(<<'EOT')); |
662 | : $_ .= "\n"; |
663 | : $len1 = length; |
664 | : $_ .= <>; |
665 | : chop if $len1 < length; |
666 | : <<--#ifdef TSEEN |
667 | : $tflag = 0; |
668 | : <<--#endif |
0a12ae7d |
669 | EOT |
8d063cd8 |
670 | next; |
671 | } |
672 | |
673 | if (/^h/) { |
674 | $_ = '$hold = $_;'; |
675 | next; |
676 | } |
677 | |
678 | if (/^H/) { |
d050a71c |
679 | $_ = '$hold .= "\n", $hold .= $_;'; |
8d063cd8 |
680 | next; |
681 | } |
682 | |
683 | if (/^g/) { |
684 | $_ = '$_ = $hold;'; |
685 | next; |
686 | } |
687 | |
688 | if (/^G/) { |
d050a71c |
689 | $_ = '$_ .= "\n", $_ .= $hold;'; |
8d063cd8 |
690 | next; |
691 | } |
692 | |
693 | if (/^x/) { |
694 | $_ = '($_, $hold) = ($hold, $_);'; |
695 | next; |
696 | } |
697 | |
698 | if (/^b$/) { |
0a12ae7d |
699 | $_ = 'next LINE;'; |
9ef589d8 |
700 | $sawnext++; |
8d063cd8 |
701 | next; |
702 | } |
703 | |
704 | if (/^b/) { |
705 | s/^b[ \t]*//; |
0a12ae7d |
706 | $lab = &make_label($_); |
8d063cd8 |
707 | if ($lab eq $toplabel) { |
0a12ae7d |
708 | $_ = 'redo LINE;'; |
8d063cd8 |
709 | } else { |
710 | $_ = "goto $lab;"; |
711 | } |
712 | next; |
713 | } |
714 | |
715 | if (/^t$/) { |
0a12ae7d |
716 | $_ = 'next LINE if $tflag;'; |
9ef589d8 |
717 | $sawnext++; |
8d063cd8 |
718 | $tseen++; |
719 | next; |
720 | } |
721 | |
722 | if (/^t/) { |
723 | s/^t[ \t]*//; |
0a12ae7d |
724 | $lab = &make_label($_); |
9ef589d8 |
725 | $_ = q/if ($tflag) {$tflag = 0; /; |
8d063cd8 |
726 | if ($lab eq $toplabel) { |
0a12ae7d |
727 | $_ .= 'redo LINE;}'; |
8d063cd8 |
728 | } else { |
0a12ae7d |
729 | $_ .= "goto $lab;}"; |
8d063cd8 |
730 | } |
731 | $tseen++; |
732 | next; |
733 | } |
734 | |
9ef589d8 |
735 | if (/^y/) { |
736 | s/abcdefghijklmnopqrstuvwxyz/a-z/g; |
737 | s/ABCDEFGHIJKLMNOPQRSTUVWXYZ/A-Z/g; |
738 | s/abcdef/a-f/g; |
739 | s/ABCDEF/A-F/g; |
740 | s/0123456789/0-9/g; |
741 | s/01234567/0-7/g; |
742 | $_ .= ';'; |
743 | } |
744 | |
8d063cd8 |
745 | if (/^=/) { |
9ef589d8 |
746 | $_ = 'print $.;'; |
8d063cd8 |
747 | next; |
748 | } |
749 | |
750 | if (/^q/) { |
9ef589d8 |
751 | chop($_ = &q(<<'EOT')); |
752 | : close(ARGV); |
753 | : @ARGV = (); |
754 | : next LINE; |
0a12ae7d |
755 | EOT |
9ef589d8 |
756 | $sawnext++; |
8d063cd8 |
757 | next; |
758 | } |
759 | } continue { |
760 | if ($space) { |
761 | s/^/$space/; |
762 | s/(\n)(.)/$1$space$2/g; |
763 | } |
764 | last; |
765 | } |
766 | $_; |
767 | } |
768 | |
a687059c |
769 | sub fetchpat { |
770 | local($outer) = @_; |
771 | local($addr) = $outer; |
772 | local($inbracket); |
773 | local($prefix,$delim,$ch); |
774 | |
0a12ae7d |
775 | # Process pattern one potential delimiter at a time. |
776 | |
777 | DELIM: while (s#^([^\]+(|)[\\/]*)([]+(|)[\\/])##) { |
a687059c |
778 | $prefix = $1; |
779 | $delim = $2; |
a687059c |
780 | if ($delim eq '\\') { |
781 | s/(.)//; |
782 | $ch = $1; |
00bf170e |
783 | $delim = '' if $ch =~ /^[(){}A-Za-mo-z]$/; |
9f68db38 |
784 | $ch = 'b' if $ch =~ /^[<>]$/; |
785 | $delim .= $ch; |
a687059c |
786 | } |
787 | elsif ($delim eq '[') { |
788 | $inbracket = 1; |
789 | s/^\^// && ($delim .= '^'); |
790 | s/^]// && ($delim .= ']'); |
a687059c |
791 | } |
792 | elsif ($delim eq ']') { |
793 | $inbracket = 0; |
794 | } |
795 | elsif ($inbracket || $delim ne $outer) { |
a687059c |
796 | $delim = '\\' . $delim; |
797 | } |
798 | $addr .= $prefix; |
799 | $addr .= $delim; |
800 | if ($delim eq $outer && !$inbracket) { |
0a12ae7d |
801 | last DELIM; |
a687059c |
802 | } |
803 | } |
9ef589d8 |
804 | $addr =~ s/\t/\\t/g; |
c602c2ef |
805 | $addr =~ s/\@/\\@/g; |
9ef589d8 |
806 | &simplify($addr); |
a687059c |
807 | $addr; |
808 | } |
809 | |
9ef589d8 |
810 | sub q { |
811 | local($string) = @_; |
812 | local($*) = 1; |
813 | $string =~ s/^:\t?//g; |
814 | $string; |
815 | } |
816 | |
817 | sub simplify { |
818 | $_[0] =~ s/_a-za-z0-9/\\w/ig; |
819 | $_[0] =~ s/a-z_a-z0-9/\\w/ig; |
820 | $_[0] =~ s/a-za-z_0-9/\\w/ig; |
821 | $_[0] =~ s/a-za-z0-9_/\\w/ig; |
822 | $_[0] =~ s/_0-9a-za-z/\\w/ig; |
823 | $_[0] =~ s/0-9_a-za-z/\\w/ig; |
824 | $_[0] =~ s/0-9a-z_a-z/\\w/ig; |
825 | $_[0] =~ s/0-9a-za-z_/\\w/ig; |
826 | $_[0] =~ s/\[\\w\]/\\w/g; |
827 | $_[0] =~ s/\[^\\w\]/\\W/g; |
828 | $_[0] =~ s/\[0-9\]/\\d/g; |
829 | $_[0] =~ s/\[^0-9\]/\\D/g; |
830 | $_[0] =~ s/\\d\\d\*/\\d+/g; |
831 | $_[0] =~ s/\\D\\D\*/\\D+/g; |
832 | $_[0] =~ s/\\w\\w\*/\\w+/g; |
833 | $_[0] =~ s/\\t\\t\*/\\t+/g; |
834 | $_[0] =~ s/(\[.[^]]*\])\1\*/$1+/g; |
835 | $_[0] =~ s/([\w\s!@#%^&-=,:;'"])\1\*/$1+/g; |
836 | } |
837 | |
1aa91729 |
838 | sub skip { |
839 | local($level) = 0; |
840 | |
841 | while(<BODY>) { |
842 | /^#ifdef/ && $level++; |
843 | /^#else/ && !$level && return; |
844 | /^#endif/ && !$level-- && return; |
845 | } |
846 | |
847 | die "Unterminated `#ifdef' conditional\n"; |
848 | } |
a687059c |
849 | !NO!SUBS! |
4633a7c4 |
850 | |
851 | close OUT or die "Can't close $file: $!"; |
852 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; |
853 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; |
8a5546a1 |
854 | chdir $origdir; |