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4633a7c4 |
1 | #!/usr/local/bin/perl |
2 | |
3 | use Config; |
4 | use File::Basename qw(&basename &dirname); |
5 | |
6 | # List explicitly here the variables you want Configure to |
7 | # generate. Metaconfig only looks for shell variables, so you |
8 | # have to mention them as if they were shell variables, not |
9 | # %Config entries. Thus you write |
10 | # $startperl |
11 | # to ensure Configure will look for $Config{startperl}. |
12 | |
13 | # This forces PL files to create target in same directory as PL file. |
14 | # This is so that make depend always knows where to find PL derivatives. |
15 | chdir(dirname($0)); |
16 | ($file = basename($0)) =~ s/\.PL$//; |
17 | $file =~ s/\.pl$// |
f360dba1 |
18 | if ($^O eq 'VMS' or $^O eq 'os2'); # "case-forgiving" |
4633a7c4 |
19 | |
20 | open OUT,">$file" or die "Can't create $file: $!"; |
21 | |
22 | print "Extracting $file (with variable substitutions)\n"; |
23 | |
24 | # In this section, perl variables will be expanded during extraction. |
25 | # You can use $Config{...} to use Configure variables. |
26 | |
27 | print OUT <<"!GROK!THIS!"; |
5f05dabc |
28 | $Config{startperl} |
29 | eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}' |
30 | if \$running_under_some_shell; |
f70b6ff5 |
31 | \$startperl = "$Config{startperl}"; |
5f05dabc |
32 | \$perlpath = "$Config{perlpath}"; |
a687059c |
33 | !GROK!THIS! |
34 | |
4633a7c4 |
35 | # In the following, perl variables are not expanded during extraction. |
36 | |
37 | print OUT <<'!NO!SUBS!'; |
a687059c |
38 | |
79072805 |
39 | # $RCSfile: s2p.SH,v $$Revision: 4.1 $$Date: 92/08/07 18:29:23 $ |
378cc40b |
40 | # |
a687059c |
41 | # $Log: s2p.SH,v $ |
8d063cd8 |
42 | |
d83e3bda |
43 | =head1 NAME |
44 | |
45 | s2p - Sed to Perl translator |
46 | |
47 | =head1 SYNOPSIS |
48 | |
49 | B<s2p [options] filename> |
50 | |
51 | =head1 DESCRIPTION |
52 | |
53 | I<S2p> takes a sed script specified on the command line (or from |
54 | standard input) and produces a comparable I<perl> script on the |
55 | standard output. |
56 | |
57 | =head2 Options |
58 | |
59 | Options include: |
60 | |
61 | =over 5 |
62 | |
63 | =item B<-DE<lt>numberE<gt>> |
64 | |
65 | sets debugging flags. |
66 | |
67 | =item B<-n> |
68 | |
69 | specifies that this sed script was always invoked with a B<sed -n>. |
70 | Otherwise a switch parser is prepended to the front of the script. |
71 | |
72 | =item B<-p> |
73 | |
74 | specifies that this sed script was never invoked with a B<sed -n>. |
75 | Otherwise a switch parser is prepended to the front of the script. |
76 | |
77 | =back |
78 | |
79 | =head2 Considerations |
80 | |
81 | The perl script produced looks very sed-ish, and there may very well |
82 | be better ways to express what you want to do in perl. For instance, |
83 | s2p does not make any use of the split operator, but you might want |
84 | to. |
85 | |
86 | The perl script you end up with may be either faster or slower than |
87 | the original sed script. If you're only interested in speed you'll |
88 | just have to try it both ways. Of course, if you want to do something |
89 | sed doesn't do, you have no choice. It's often possible to speed up |
90 | the perl script by various methods, such as deleting all references to |
91 | $\ and chop. |
92 | |
93 | =head1 ENVIRONMENT |
94 | |
95 | S2p uses no environment variables. |
96 | |
97 | =head1 AUTHOR |
98 | |
55497cff |
99 | Larry Wall E<lt>F<larry@wall.org>E<gt> |
d83e3bda |
100 | |
101 | =head1 FILES |
102 | |
103 | =head1 SEE ALSO |
104 | |
105 | perl The perl compiler/interpreter |
106 | |
107 | a2p awk to perl translator |
108 | |
109 | =head1 DIAGNOSTICS |
110 | |
111 | =head1 BUGS |
112 | |
113 | =cut |
114 | |
8d063cd8 |
115 | $indent = 4; |
116 | $shiftwidth = 4; |
117 | $l = '{'; $r = '}'; |
8d063cd8 |
118 | |
0a12ae7d |
119 | while ($ARGV[0] =~ /^-/) { |
8d063cd8 |
120 | $_ = shift; |
121 | last if /^--/; |
122 | if (/^-D/) { |
123 | $debug++; |
0a12ae7d |
124 | open(BODY,'>-'); |
8d063cd8 |
125 | next; |
126 | } |
127 | if (/^-n/) { |
128 | $assumen++; |
129 | next; |
130 | } |
131 | if (/^-p/) { |
132 | $assumep++; |
133 | next; |
134 | } |
378cc40b |
135 | die "I don't recognize this switch: $_\n"; |
8d063cd8 |
136 | } |
137 | |
138 | unless ($debug) { |
0a12ae7d |
139 | open(BODY,">/tmp/sperl$$") || |
140 | &Die("Can't open temp file: $!\n"); |
8d063cd8 |
141 | } |
142 | |
143 | if (!$assumen && !$assumep) { |
9ef589d8 |
144 | print BODY &q(<<'EOT'); |
145 | : while ($ARGV[0] =~ /^-/) { |
146 | : $_ = shift; |
147 | : last if /^--/; |
148 | : if (/^-n/) { |
149 | : $nflag++; |
150 | : next; |
151 | : } |
152 | : die "I don't recognize this switch: $_\\n"; |
153 | : } |
154 | : |
0a12ae7d |
155 | EOT |
8d063cd8 |
156 | } |
157 | |
9ef589d8 |
158 | print BODY &q(<<'EOT'); |
159 | : #ifdef PRINTIT |
160 | : #ifdef ASSUMEP |
161 | : $printit++; |
162 | : #else |
163 | : $printit++ unless $nflag; |
164 | : #endif |
165 | : #endif |
166 | : <><> |
167 | : $\ = "\n"; # automatically add newline on print |
168 | : <><> |
169 | : #ifdef TOPLABEL |
170 | : LINE: |
171 | : while (chop($_ = <>)) { |
172 | : #else |
173 | : LINE: |
174 | : while (<>) { |
175 | : chop; |
176 | : #endif |
0a12ae7d |
177 | EOT |
178 | |
9ef589d8 |
179 | LINE: |
180 | while (<>) { |
0a12ae7d |
181 | |
182 | # Wipe out surrounding whitespace. |
8d063cd8 |
183 | |
8d063cd8 |
184 | s/[ \t]*(.*)\n$/$1/; |
0a12ae7d |
185 | |
186 | # Perhaps it's a label/comment. |
187 | |
8d063cd8 |
188 | if (/^:/) { |
189 | s/^:[ \t]*//; |
0a12ae7d |
190 | $label = &make_label($_); |
8d063cd8 |
191 | if ($. == 1) { |
192 | $toplabel = $label; |
9ef589d8 |
193 | if (/^(top|(re)?start|redo|begin(ning)|again|input)$/i) { |
194 | $_ = <>; |
195 | redo LINE; # Never referenced, so delete it if not a comment. |
196 | } |
8d063cd8 |
197 | } |
198 | $_ = "$label:"; |
ffed7fef |
199 | if ($lastlinewaslabel++) { |
200 | $indent += 4; |
0a12ae7d |
201 | print BODY &tab, ";\n"; |
ffed7fef |
202 | $indent -= 4; |
203 | } |
8d063cd8 |
204 | if ($indent >= 2) { |
205 | $indent -= 2; |
206 | $indmod = 2; |
207 | } |
208 | next; |
209 | } else { |
210 | $lastlinewaslabel = ''; |
211 | } |
0a12ae7d |
212 | |
213 | # Look for one or two address clauses |
214 | |
8d063cd8 |
215 | $addr1 = ''; |
216 | $addr2 = ''; |
217 | if (s/^([0-9]+)//) { |
218 | $addr1 = "$1"; |
9ef589d8 |
219 | $addr1 = "\$. == $addr1" unless /^,/; |
8d063cd8 |
220 | } |
221 | elsif (s/^\$//) { |
222 | $addr1 = 'eof()'; |
223 | } |
224 | elsif (s|^/||) { |
0a12ae7d |
225 | $addr1 = &fetchpat('/'); |
8d063cd8 |
226 | } |
227 | if (s/^,//) { |
228 | if (s/^([0-9]+)//) { |
229 | $addr2 = "$1"; |
230 | } elsif (s/^\$//) { |
231 | $addr2 = "eof()"; |
232 | } elsif (s|^/||) { |
0a12ae7d |
233 | $addr2 = &fetchpat('/'); |
8d063cd8 |
234 | } else { |
0a12ae7d |
235 | &Die("Invalid second address at line $.\n"); |
8d063cd8 |
236 | } |
2b69d0c2 |
237 | if ($addr2 =~ /^\d+$/) { |
238 | $addr1 .= "..$addr2"; |
239 | } |
240 | else { |
241 | $addr1 .= "...$addr2"; |
242 | } |
8d063cd8 |
243 | } |
0a12ae7d |
244 | |
245 | # Now we check for metacommands {, }, and ! and worry |
246 | # about indentation. |
247 | |
378cc40b |
248 | s/^[ \t]+//; |
0a12ae7d |
249 | # a { to keep vi happy |
8d063cd8 |
250 | if ($_ eq '}') { |
251 | $indent -= 4; |
252 | next; |
253 | } |
254 | if (s/^!//) { |
255 | $if = 'unless'; |
256 | $else = "$r else $l\n"; |
257 | } else { |
258 | $if = 'if'; |
259 | $else = ''; |
260 | } |
261 | if (s/^{//) { # a } to keep vi happy |
262 | $indmod = 4; |
263 | $redo = $_; |
264 | $_ = ''; |
265 | $rmaybe = ''; |
266 | } else { |
267 | $rmaybe = "\n$r"; |
268 | if ($addr2 || $addr1) { |
a687059c |
269 | $space = ' ' x $shiftwidth; |
8d063cd8 |
270 | } else { |
271 | $space = ''; |
272 | } |
0a12ae7d |
273 | $_ = &transmogrify(); |
8d063cd8 |
274 | } |
275 | |
0a12ae7d |
276 | # See if we can optimize to modifier form. |
277 | |
8d063cd8 |
278 | if ($addr1) { |
279 | if ($_ !~ /[\n{}]/ && $rmaybe && !$change && |
280 | $_ !~ / if / && $_ !~ / unless /) { |
281 | s/;$/ $if $addr1;/; |
282 | $_ = substr($_,$shiftwidth,1000); |
283 | } else { |
0a12ae7d |
284 | $_ = "$if ($addr1) $l\n$change$_$rmaybe"; |
8d063cd8 |
285 | } |
286 | $change = ''; |
0a12ae7d |
287 | next LINE; |
8d063cd8 |
288 | } |
289 | } continue { |
290 | @lines = split(/\n/,$_); |
0a12ae7d |
291 | for (@lines) { |
8d063cd8 |
292 | unless (s/^ *<<--//) { |
0a12ae7d |
293 | print BODY &tab; |
8d063cd8 |
294 | } |
0a12ae7d |
295 | print BODY $_, "\n"; |
8d063cd8 |
296 | } |
297 | $indent += $indmod; |
298 | $indmod = 0; |
299 | if ($redo) { |
300 | $_ = $redo; |
301 | $redo = ''; |
0a12ae7d |
302 | redo LINE; |
8d063cd8 |
303 | } |
304 | } |
ffed7fef |
305 | if ($lastlinewaslabel++) { |
306 | $indent += 4; |
0a12ae7d |
307 | print BODY &tab, ";\n"; |
ffed7fef |
308 | $indent -= 4; |
309 | } |
8d063cd8 |
310 | |
8d063cd8 |
311 | if ($appendseen || $tseen || !$assumen) { |
312 | $printit++ if $dseen || (!$assumen && !$assumep); |
9ef589d8 |
313 | print BODY &q(<<'EOT'); |
314 | : #ifdef SAWNEXT |
315 | : } |
316 | : continue { |
317 | : #endif |
318 | : #ifdef PRINTIT |
319 | : #ifdef DSEEN |
320 | : #ifdef ASSUMEP |
321 | : print if $printit++; |
322 | : #else |
323 | : if ($printit) |
324 | : { print; } |
325 | : else |
326 | : { $printit++ unless $nflag; } |
327 | : #endif |
328 | : #else |
329 | : print if $printit; |
330 | : #endif |
331 | : #else |
332 | : print; |
333 | : #endif |
334 | : #ifdef TSEEN |
335 | : $tflag = 0; |
336 | : #endif |
337 | : #ifdef APPENDSEEN |
338 | : if ($atext) { chop $atext; print $atext; $atext = ''; } |
339 | : #endif |
340 | EOT |
341 | |
342 | print BODY &q(<<'EOT'); |
343 | : } |
0a12ae7d |
344 | EOT |
8d063cd8 |
345 | } |
346 | |
0a12ae7d |
347 | close BODY; |
8d063cd8 |
348 | |
349 | unless ($debug) { |
0a12ae7d |
350 | open(HEAD,">/tmp/sperl2$$.c") |
351 | || &Die("Can't open temp file 2: $!\n"); |
9ef589d8 |
352 | print HEAD "#define PRINTIT\n" if $printit; |
353 | print HEAD "#define APPENDSEEN\n" if $appendseen; |
354 | print HEAD "#define TSEEN\n" if $tseen; |
355 | print HEAD "#define DSEEN\n" if $dseen; |
356 | print HEAD "#define ASSUMEN\n" if $assumen; |
357 | print HEAD "#define ASSUMEP\n" if $assumep; |
358 | print HEAD "#define TOPLABEL\n" if $toplabel; |
359 | print HEAD "#define SAWNEXT\n" if $sawnext; |
0a12ae7d |
360 | if ($opens) {print HEAD "$opens\n";} |
361 | open(BODY,"/tmp/sperl$$") |
362 | || &Die("Can't reopen temp file: $!\n"); |
363 | while (<BODY>) { |
364 | print HEAD $_; |
8d063cd8 |
365 | } |
0a12ae7d |
366 | close HEAD; |
8d063cd8 |
367 | |
9ef589d8 |
368 | print &q(<<"EOT"); |
4633a7c4 |
369 | : $startperl |
5f05dabc |
370 | : eval 'exec $perlpath -S \$0 \${1+"\$@"}' |
9ef589d8 |
371 | : if \$running_under_some_shell; |
372 | : |
0a12ae7d |
373 | EOT |
374 | open(BODY,"cc -E /tmp/sperl2$$.c |") || |
375 | &Die("Can't reopen temp file: $!\n"); |
376 | while (<BODY>) { |
8d063cd8 |
377 | /^# [0-9]/ && next; |
378 | /^[ \t]*$/ && next; |
379 | s/^<><>//; |
380 | print; |
381 | } |
382 | } |
383 | |
0a12ae7d |
384 | &Cleanup; |
385 | exit; |
8d063cd8 |
386 | |
0a12ae7d |
387 | sub Cleanup { |
388 | chdir "/tmp"; |
389 | unlink "sperl$$", "sperl2$$", "sperl2$$.c"; |
390 | } |
8d063cd8 |
391 | sub Die { |
0a12ae7d |
392 | &Cleanup; |
8d063cd8 |
393 | die $_[0]; |
394 | } |
0a12ae7d |
395 | sub tab { |
396 | "\t" x ($indent / 8) . ' ' x ($indent % 8); |
397 | } |
8d063cd8 |
398 | sub make_filehandle { |
0a12ae7d |
399 | local($_) = $_[0]; |
400 | local($fname) = $_; |
9ef589d8 |
401 | if (!$seen{$fname}) { |
402 | $_ = "FH_" . $_ if /^\d/; |
403 | s/[^a-zA-Z0-9]/_/g; |
404 | s/^_*//; |
405 | $_ = "\U$_"; |
406 | if ($fhseen{$_}) { |
407 | for ($tmp = "a"; $fhseen{"$_$tmp"}; $a++) {} |
408 | $_ .= $tmp; |
409 | } |
410 | $fhseen{$_} = 1; |
411 | $opens .= &q(<<"EOT"); |
412 | : open($_, '>$fname') || die "Can't create $fname: \$!"; |
0a12ae7d |
413 | EOT |
9ef589d8 |
414 | $seen{$fname} = $_; |
8d063cd8 |
415 | } |
9ef589d8 |
416 | $seen{$fname}; |
8d063cd8 |
417 | } |
418 | |
419 | sub make_label { |
0a12ae7d |
420 | local($label) = @_; |
8d063cd8 |
421 | $label =~ s/[^a-zA-Z0-9]/_/g; |
422 | if ($label =~ /^[0-9_]/) { $label = 'L' . $label; } |
423 | $label = substr($label,0,8); |
0a12ae7d |
424 | |
425 | # Could be a reserved word, so capitalize it. |
426 | substr($label,0,1) =~ y/a-z/A-Z/ |
427 | if $label =~ /^[a-z]/; |
428 | |
8d063cd8 |
429 | $label; |
430 | } |
431 | |
432 | sub transmogrify { |
433 | { # case |
434 | if (/^d/) { |
435 | $dseen++; |
9ef589d8 |
436 | chop($_ = &q(<<'EOT')); |
437 | : <<--#ifdef PRINTIT |
438 | : $printit = 0; |
439 | : <<--#endif |
440 | : next LINE; |
0a12ae7d |
441 | EOT |
9ef589d8 |
442 | $sawnext++; |
8d063cd8 |
443 | next; |
444 | } |
445 | |
446 | if (/^n/) { |
9ef589d8 |
447 | chop($_ = &q(<<'EOT')); |
448 | : <<--#ifdef PRINTIT |
449 | : <<--#ifdef DSEEN |
450 | : <<--#ifdef ASSUMEP |
451 | : print if $printit++; |
452 | : <<--#else |
453 | : if ($printit) |
454 | : { print; } |
455 | : else |
456 | : { $printit++ unless $nflag; } |
457 | : <<--#endif |
458 | : <<--#else |
459 | : print if $printit; |
460 | : <<--#endif |
461 | : <<--#else |
462 | : print; |
463 | : <<--#endif |
464 | : <<--#ifdef APPENDSEEN |
465 | : if ($atext) {chop $atext; print $atext; $atext = '';} |
466 | : <<--#endif |
467 | : $_ = <>; |
468 | : chop; |
469 | : <<--#ifdef TSEEN |
470 | : $tflag = 0; |
471 | : <<--#endif |
0a12ae7d |
472 | EOT |
8d063cd8 |
473 | next; |
474 | } |
475 | |
476 | if (/^a/) { |
477 | $appendseen++; |
9ef589d8 |
478 | $command = $space . "\$atext .= <<'End_Of_Text';\n<<--"; |
8d063cd8 |
479 | $lastline = 0; |
480 | while (<>) { |
481 | s/^[ \t]*//; |
482 | s/^[\\]//; |
483 | unless (s|\\$||) { $lastline = 1;} |
8d063cd8 |
484 | s/^([ \t]*\n)/<><>$1/; |
485 | $command .= $_; |
486 | $command .= '<<--'; |
487 | last if $lastline; |
488 | } |
9ef589d8 |
489 | $_ = $command . "End_Of_Text"; |
8d063cd8 |
490 | last; |
491 | } |
492 | |
493 | if (/^[ic]/) { |
494 | if (/^c/) { $change = 1; } |
9ef589d8 |
495 | $addr1 = 1 if $addr1 eq ''; |
8d063cd8 |
496 | $addr1 = '$iter = (' . $addr1 . ')'; |
9ef589d8 |
497 | $command = $space . |
498 | " if (\$iter == 1) { print <<'End_Of_Text'; }\n<<--"; |
8d063cd8 |
499 | $lastline = 0; |
500 | while (<>) { |
501 | s/^[ \t]*//; |
502 | s/^[\\]//; |
503 | unless (s/\\$//) { $lastline = 1;} |
504 | s/'/\\'/g; |
505 | s/^([ \t]*\n)/<><>$1/; |
506 | $command .= $_; |
507 | $command .= '<<--'; |
508 | last if $lastline; |
509 | } |
9ef589d8 |
510 | $_ = $command . "End_Of_Text"; |
8d063cd8 |
511 | if ($change) { |
512 | $dseen++; |
513 | $change = "$_\n"; |
9ef589d8 |
514 | chop($_ = &q(<<"EOT")); |
515 | : <<--#ifdef PRINTIT |
516 | : $space\$printit = 0; |
517 | : <<--#endif |
518 | : ${space}next LINE; |
0a12ae7d |
519 | EOT |
9ef589d8 |
520 | $sawnext++; |
8d063cd8 |
521 | } |
522 | last; |
523 | } |
524 | |
525 | if (/^s/) { |
526 | $delim = substr($_,1,1); |
527 | $len = length($_); |
528 | $repl = $end = 0; |
a687059c |
529 | $inbracket = 0; |
8d063cd8 |
530 | for ($i = 2; $i < $len; $i++) { |
531 | $c = substr($_,$i,1); |
a687059c |
532 | if ($c eq $delim) { |
533 | if ($inbracket) { |
0a12ae7d |
534 | substr($_, $i, 0) = '\\'; |
a687059c |
535 | $i++; |
536 | $len++; |
537 | } |
538 | else { |
539 | if ($repl) { |
540 | $end = $i; |
541 | last; |
542 | } else { |
543 | $repl = $i; |
544 | } |
545 | } |
546 | } |
547 | elsif ($c eq '\\') { |
8d063cd8 |
548 | $i++; |
549 | if ($i >= $len) { |
550 | $_ .= 'n'; |
551 | $_ .= <>; |
552 | $len = length($_); |
553 | $_ = substr($_,0,--$len); |
554 | } |
00bf170e |
555 | elsif (substr($_,$i,1) =~ /^[n]$/) { |
556 | ; |
557 | } |
0a12ae7d |
558 | elsif (!$repl && |
559 | substr($_,$i,1) =~ /^[(){}\w]$/) { |
8d063cd8 |
560 | $i--; |
561 | $len--; |
0a12ae7d |
562 | substr($_, $i, 1) = ''; |
8d063cd8 |
563 | } |
0a12ae7d |
564 | elsif (!$repl && |
565 | substr($_,$i,1) =~ /^[<>]$/) { |
9f68db38 |
566 | substr($_,$i,1) = 'b'; |
567 | } |
2b69d0c2 |
568 | elsif ($repl && substr($_,$i,1) =~ /^\d$/) { |
569 | substr($_,$i-1,1) = '$'; |
570 | } |
571 | } |
572 | elsif ($c eq '&' && $repl) { |
573 | substr($_, $i, 0) = '$'; |
574 | $i++; |
575 | $len++; |
576 | } |
577 | elsif ($c eq '$' && $repl) { |
578 | substr($_, $i, 0) = '\\'; |
579 | $i++; |
580 | $len++; |
8d063cd8 |
581 | } |
a687059c |
582 | elsif ($c eq '[' && !$repl) { |
583 | $i++ if substr($_,$i,1) eq '^'; |
584 | $i++ if substr($_,$i,1) eq ']'; |
585 | $inbracket = 1; |
8d063cd8 |
586 | } |
a687059c |
587 | elsif ($c eq ']') { |
588 | $inbracket = 0; |
589 | } |
9ef589d8 |
590 | elsif ($c eq "\t") { |
591 | substr($_, $i, 1) = '\\t'; |
592 | $i++; |
593 | $len++; |
594 | } |
ae986130 |
595 | elsif (!$repl && index("()+",$c) >= 0) { |
0a12ae7d |
596 | substr($_, $i, 0) = '\\'; |
8d063cd8 |
597 | $i++; |
598 | $len++; |
599 | } |
600 | } |
0a12ae7d |
601 | &Die("Malformed substitution at line $.\n") |
602 | unless $end; |
8d063cd8 |
603 | $pat = substr($_, 0, $repl + 1); |
0a12ae7d |
604 | $repl = substr($_, $repl+1, $end-$repl-1); |
8d063cd8 |
605 | $end = substr($_, $end + 1, 1000); |
9ef589d8 |
606 | &simplify($pat); |
8d063cd8 |
607 | $dol = '$'; |
8d063cd8 |
608 | $subst = "$pat$repl$delim"; |
609 | $cmd = ''; |
610 | while ($end) { |
0a12ae7d |
611 | if ($end =~ s/^g//) { |
612 | $subst .= 'g'; |
613 | next; |
614 | } |
615 | if ($end =~ s/^p//) { |
616 | $cmd .= ' && (print)'; |
617 | next; |
618 | } |
8d063cd8 |
619 | if ($end =~ s/^w[ \t]*//) { |
0a12ae7d |
620 | $fh = &make_filehandle($end); |
8d063cd8 |
621 | $cmd .= " && (print $fh \$_)"; |
622 | $end = ''; |
623 | next; |
624 | } |
0a12ae7d |
625 | &Die("Unrecognized substitution command". |
626 | "($end) at line $.\n"); |
8d063cd8 |
627 | } |
9ef589d8 |
628 | chop ($_ = &q(<<"EOT")); |
629 | : <<--#ifdef TSEEN |
630 | : $subst && \$tflag++$cmd; |
631 | : <<--#else |
632 | : $subst$cmd; |
633 | : <<--#endif |
0a12ae7d |
634 | EOT |
8d063cd8 |
635 | next; |
636 | } |
637 | |
638 | if (/^p/) { |
639 | $_ = 'print;'; |
640 | next; |
641 | } |
642 | |
643 | if (/^w/) { |
644 | s/^w[ \t]*//; |
0a12ae7d |
645 | $fh = &make_filehandle($_); |
8d063cd8 |
646 | $_ = "print $fh \$_;"; |
647 | next; |
648 | } |
649 | |
650 | if (/^r/) { |
651 | $appendseen++; |
652 | s/^r[ \t]*//; |
653 | $file = $_; |
654 | $_ = "\$atext .= `cat $file 2>/dev/null`;"; |
655 | next; |
656 | } |
657 | |
658 | if (/^P/) { |
9ef589d8 |
659 | $_ = 'print $1 if /^(.*)/;'; |
8d063cd8 |
660 | next; |
661 | } |
662 | |
663 | if (/^D/) { |
9ef589d8 |
664 | chop($_ = &q(<<'EOT')); |
665 | : s/^.*\n?//; |
666 | : redo LINE if $_; |
667 | : next LINE; |
0a12ae7d |
668 | EOT |
9ef589d8 |
669 | $sawnext++; |
8d063cd8 |
670 | next; |
671 | } |
672 | |
673 | if (/^N/) { |
9ef589d8 |
674 | chop($_ = &q(<<'EOT')); |
675 | : $_ .= "\n"; |
676 | : $len1 = length; |
677 | : $_ .= <>; |
678 | : chop if $len1 < length; |
679 | : <<--#ifdef TSEEN |
680 | : $tflag = 0; |
681 | : <<--#endif |
0a12ae7d |
682 | EOT |
8d063cd8 |
683 | next; |
684 | } |
685 | |
686 | if (/^h/) { |
687 | $_ = '$hold = $_;'; |
688 | next; |
689 | } |
690 | |
691 | if (/^H/) { |
9ef589d8 |
692 | $_ = '$hold .= "\n"; $hold .= $_;'; |
8d063cd8 |
693 | next; |
694 | } |
695 | |
696 | if (/^g/) { |
697 | $_ = '$_ = $hold;'; |
698 | next; |
699 | } |
700 | |
701 | if (/^G/) { |
9ef589d8 |
702 | $_ = '$_ .= "\n"; $_ .= $hold;'; |
8d063cd8 |
703 | next; |
704 | } |
705 | |
706 | if (/^x/) { |
707 | $_ = '($_, $hold) = ($hold, $_);'; |
708 | next; |
709 | } |
710 | |
711 | if (/^b$/) { |
0a12ae7d |
712 | $_ = 'next LINE;'; |
9ef589d8 |
713 | $sawnext++; |
8d063cd8 |
714 | next; |
715 | } |
716 | |
717 | if (/^b/) { |
718 | s/^b[ \t]*//; |
0a12ae7d |
719 | $lab = &make_label($_); |
8d063cd8 |
720 | if ($lab eq $toplabel) { |
0a12ae7d |
721 | $_ = 'redo LINE;'; |
8d063cd8 |
722 | } else { |
723 | $_ = "goto $lab;"; |
724 | } |
725 | next; |
726 | } |
727 | |
728 | if (/^t$/) { |
0a12ae7d |
729 | $_ = 'next LINE if $tflag;'; |
9ef589d8 |
730 | $sawnext++; |
8d063cd8 |
731 | $tseen++; |
732 | next; |
733 | } |
734 | |
735 | if (/^t/) { |
736 | s/^t[ \t]*//; |
0a12ae7d |
737 | $lab = &make_label($_); |
9ef589d8 |
738 | $_ = q/if ($tflag) {$tflag = 0; /; |
8d063cd8 |
739 | if ($lab eq $toplabel) { |
0a12ae7d |
740 | $_ .= 'redo LINE;}'; |
8d063cd8 |
741 | } else { |
0a12ae7d |
742 | $_ .= "goto $lab;}"; |
8d063cd8 |
743 | } |
744 | $tseen++; |
745 | next; |
746 | } |
747 | |
9ef589d8 |
748 | if (/^y/) { |
749 | s/abcdefghijklmnopqrstuvwxyz/a-z/g; |
750 | s/ABCDEFGHIJKLMNOPQRSTUVWXYZ/A-Z/g; |
751 | s/abcdef/a-f/g; |
752 | s/ABCDEF/A-F/g; |
753 | s/0123456789/0-9/g; |
754 | s/01234567/0-7/g; |
755 | $_ .= ';'; |
756 | } |
757 | |
8d063cd8 |
758 | if (/^=/) { |
9ef589d8 |
759 | $_ = 'print $.;'; |
8d063cd8 |
760 | next; |
761 | } |
762 | |
763 | if (/^q/) { |
9ef589d8 |
764 | chop($_ = &q(<<'EOT')); |
765 | : close(ARGV); |
766 | : @ARGV = (); |
767 | : next LINE; |
0a12ae7d |
768 | EOT |
9ef589d8 |
769 | $sawnext++; |
8d063cd8 |
770 | next; |
771 | } |
772 | } continue { |
773 | if ($space) { |
774 | s/^/$space/; |
775 | s/(\n)(.)/$1$space$2/g; |
776 | } |
777 | last; |
778 | } |
779 | $_; |
780 | } |
781 | |
a687059c |
782 | sub fetchpat { |
783 | local($outer) = @_; |
784 | local($addr) = $outer; |
785 | local($inbracket); |
786 | local($prefix,$delim,$ch); |
787 | |
0a12ae7d |
788 | # Process pattern one potential delimiter at a time. |
789 | |
790 | DELIM: while (s#^([^\]+(|)[\\/]*)([]+(|)[\\/])##) { |
a687059c |
791 | $prefix = $1; |
792 | $delim = $2; |
a687059c |
793 | if ($delim eq '\\') { |
794 | s/(.)//; |
795 | $ch = $1; |
00bf170e |
796 | $delim = '' if $ch =~ /^[(){}A-Za-mo-z]$/; |
9f68db38 |
797 | $ch = 'b' if $ch =~ /^[<>]$/; |
798 | $delim .= $ch; |
a687059c |
799 | } |
800 | elsif ($delim eq '[') { |
801 | $inbracket = 1; |
802 | s/^\^// && ($delim .= '^'); |
803 | s/^]// && ($delim .= ']'); |
a687059c |
804 | } |
805 | elsif ($delim eq ']') { |
806 | $inbracket = 0; |
807 | } |
808 | elsif ($inbracket || $delim ne $outer) { |
a687059c |
809 | $delim = '\\' . $delim; |
810 | } |
811 | $addr .= $prefix; |
812 | $addr .= $delim; |
813 | if ($delim eq $outer && !$inbracket) { |
0a12ae7d |
814 | last DELIM; |
a687059c |
815 | } |
816 | } |
9ef589d8 |
817 | $addr =~ s/\t/\\t/g; |
818 | &simplify($addr); |
a687059c |
819 | $addr; |
820 | } |
821 | |
9ef589d8 |
822 | sub q { |
823 | local($string) = @_; |
824 | local($*) = 1; |
825 | $string =~ s/^:\t?//g; |
826 | $string; |
827 | } |
828 | |
829 | sub simplify { |
830 | $_[0] =~ s/_a-za-z0-9/\\w/ig; |
831 | $_[0] =~ s/a-z_a-z0-9/\\w/ig; |
832 | $_[0] =~ s/a-za-z_0-9/\\w/ig; |
833 | $_[0] =~ s/a-za-z0-9_/\\w/ig; |
834 | $_[0] =~ s/_0-9a-za-z/\\w/ig; |
835 | $_[0] =~ s/0-9_a-za-z/\\w/ig; |
836 | $_[0] =~ s/0-9a-z_a-z/\\w/ig; |
837 | $_[0] =~ s/0-9a-za-z_/\\w/ig; |
838 | $_[0] =~ s/\[\\w\]/\\w/g; |
839 | $_[0] =~ s/\[^\\w\]/\\W/g; |
840 | $_[0] =~ s/\[0-9\]/\\d/g; |
841 | $_[0] =~ s/\[^0-9\]/\\D/g; |
842 | $_[0] =~ s/\\d\\d\*/\\d+/g; |
843 | $_[0] =~ s/\\D\\D\*/\\D+/g; |
844 | $_[0] =~ s/\\w\\w\*/\\w+/g; |
845 | $_[0] =~ s/\\t\\t\*/\\t+/g; |
846 | $_[0] =~ s/(\[.[^]]*\])\1\*/$1+/g; |
847 | $_[0] =~ s/([\w\s!@#%^&-=,:;'"])\1\*/$1+/g; |
848 | } |
849 | |
a687059c |
850 | !NO!SUBS! |
4633a7c4 |
851 | |
852 | close OUT or die "Can't close $file: $!"; |
853 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; |
854 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; |