xref: /onnv-gate/usr/src/cmd/perl/5.8.4/distrib/x2p/find2perl.PL (revision 0:68f95e015346) 
1#!/usr/local/bin/perl
2
3use Config;
4use File::Basename qw(&basename &dirname);
5use Cwd;
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 $Config{startperl}.
13
14# This forces PL files to create target in same directory as PL file.
15# This is so that make depend always knows where to find PL derivatives.
16$origdir = cwd;
17chdir dirname($0);
18$file = basename($0, '.PL');
19$file .= '.com' if $^O eq 'VMS';
20
21open OUT,">$file" or die "Can't create $file: $!";
22
23print "Extracting $file (with variable substitutions)\n";
24
25# In this section, perl variables will be expanded during extraction.
26# You can use $Config{...} to use Configure variables.
27
28print OUT <<"!GROK!THIS!";
29$Config{startperl}
30    eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}'
31      if \$running_under_some_shell;
32(my \$perlpath = <<'/../') =~ s/\\s*\\z//;
33$Config{perlpath}
34/../
35!GROK!THIS!
36
37# In the following, perl variables are not expanded during extraction.
38
39print OUT <<'!NO!SUBS!';
40use strict;
41use vars qw/$statdone/;
42use File::Spec::Functions 'curdir';
43my $startperl = "#! $perlpath -w";
44
45#
46# Modified September 26, 1993 to provide proper handling of years after 1999
47#   Tom Link <tml+@pitt.edu>
48#   University of Pittsburgh
49#
50# Modified April 7, 1998 with nasty hacks to implement the troublesome -follow
51#  Billy Constantine <wdconsta@cs.adelaide.edu.au> <billy@smug.adelaide.edu.au>
52#  University of Adelaide, Adelaide, South Australia
53#
54# Modified 1999-06-10, 1999-07-07 to migrate to cleaner perl5 usage
55#   Ken Pizzini <ken@halcyon.com>
56#
57# Modified 2000-01-28 to use the 'follow' option of File::Find
58
59sub tab ();
60sub n ($$);
61sub fileglob_to_re ($);
62sub quote ($);
63
64my @roots = ();
65while ($ARGV[0] =~ /^[^-!(]/) {
66    push(@roots, shift);
67}
68@roots = (curdir()) unless @roots;
69for (@roots) { $_ = quote($_) }
70my $roots = join(', ', @roots);
71
72my $find = "find";
73my $indent_depth = 1;
74my $stat = 'lstat';
75my $decl = '';
76my $flushall = '';
77my $initfile = '';
78my $initnewer = '';
79my $out = '';
80my $declaresubs = "sub wanted;\n";
81my %init = ();
82my ($follow_in_effect,$Skip_And) = (0,0);
83my $print_needed = 1;
84
85while (@ARGV) {
86    $_ = shift;
87    s/^-// || /^[()!]/ || die "Unrecognized switch: $_\n";
88    if ($_ eq '(') {
89        $out .= tab . "(\n";
90        $indent_depth++;
91        next;
92    } elsif ($_ eq ')') {
93        --$indent_depth;
94        $out .= tab . ")";
95    } elsif ($_ eq 'follow') {
96        $follow_in_effect= 1;
97        $stat = 'stat';
98        $Skip_And= 1;
99    } elsif ($_ eq '!') {
100        $out .= tab . "!";
101        next;
102    } elsif ($_ eq 'name') {
103        $out .= tab . '/' . fileglob_to_re(shift) . "/s";
104    } elsif ($_ eq 'perm') {
105        my $onum = shift;
106        $onum =~ /^-?[0-7]+$/
107            || die "Malformed -perm argument: $onum\n";
108        $out .= tab;
109        if ($onum =~ s/^-//) {
110            $onum = sprintf("0%o", oct($onum) & 07777);
111            $out .= "((\$mode & $onum) == $onum)";
112        } else {
113            $onum =~ s/^0*/0/;
114            $out .= "((\$mode & 0777) == $onum)";
115        }
116    } elsif ($_ eq 'type') {
117        (my $filetest = shift) =~ tr/s/S/;
118        $out .= tab . "-$filetest _";
119    } elsif ($_ eq 'print') {
120        $out .= tab . 'print("$name\n")';
121	$print_needed = 0;
122    } elsif ($_ eq 'print0') {
123        $out .= tab . 'print("$name\0")';
124	$print_needed = 0;
125    } elsif ($_ eq 'fstype') {
126        my $type = shift;
127        $out .= tab;
128        if ($type eq 'nfs') {
129            $out .= '($dev < 0)';
130        } else {
131            $out .= '($dev >= 0)'; #XXX
132        }
133    } elsif ($_ eq 'user') {
134        my $uname = shift;
135        $out .= tab . "(\$uid == \$uid{'$uname'})";
136        $init{user} = 1;
137    } elsif ($_ eq 'group') {
138        my $gname = shift;
139        $out .= tab . "(\$gid == \$gid{'$gname'})";
140        $init{group} = 1;
141    } elsif ($_ eq 'nouser') {
142        $out .= tab . '!exists $uid{$uid}';
143        $init{user} = 1;
144    } elsif ($_ eq 'nogroup') {
145        $out .= tab . '!exists $gid{$gid}';
146        $init{group} = 1;
147    } elsif ($_ eq 'links') {
148        $out .= tab . n('$nlink', shift);
149    } elsif ($_ eq 'inum') {
150        $out .= tab . n('$ino', shift);
151    } elsif ($_ eq 'size') {
152        $_ = shift;
153        my $n = 'int(((-s _) + 511) / 512)';
154        if (s/c\z//) {
155            $n = 'int(-s _)';
156        } elsif (s/k\z//) {
157            $n = 'int(((-s _) + 1023) / 1024)';
158        }
159        $out .= tab . n($n, $_);
160    } elsif ($_ eq 'atime') {
161        $out .= tab . n('int(-A _)', shift);
162    } elsif ($_ eq 'mtime') {
163        $out .= tab . n('int(-M _)', shift);
164    } elsif ($_ eq 'ctime') {
165        $out .= tab . n('int(-C _)', shift);
166    } elsif ($_ eq 'exec') {
167        my @cmd = ();
168        while (@ARGV && $ARGV[0] ne ';')
169            { push(@cmd, shift) }
170        shift;
171        $out .= tab;
172        if ($cmd[0] =~m#^(?:(?:/usr)?/bin/)?rm$#
173                && $cmd[$#cmd] eq '{}'
174                && (@cmd == 2 || (@cmd == 3 && $cmd[1] eq '-f'))) {
175            if (@cmd == 2) {
176                $out .= '(unlink($_) || warn "$name: $!\n")';
177            } elsif (!@ARGV) {
178                $out .= 'unlink($_)';
179            } else {
180                $out .= '(unlink($_) || 1)';
181            }
182        } else {
183            for (@cmd)
184                { s/'/\\'/g }
185            { local $" = "','"; $out .= "doexec(0, '@cmd')"; }
186            $declaresubs .= "sub doexec (\$\@);\n";
187            $init{doexec} = 1;
188        }
189	$print_needed = 0;
190    } elsif ($_ eq 'ok') {
191        my @cmd = ();
192        while (@ARGV && $ARGV[0] ne ';')
193            { push(@cmd, shift) }
194        shift;
195        $out .= tab;
196        for (@cmd)
197            { s/'/\\'/g }
198        { local $" = "','"; $out .= "doexec(1, '@cmd')"; }
199        $declaresubs .= "sub doexec (\$\@);\n";
200        $init{doexec} = 1;
201	$print_needed = 0;
202    } elsif ($_ eq 'prune') {
203        $out .= tab . '($File::Find::prune = 1)';
204    } elsif ($_ eq 'xdev') {
205        $out .= tab . '!($File::Find::prune |= ($dev != $File::Find::topdev))'
206;
207    } elsif ($_ eq 'newer') {
208        my $file = shift;
209        my $newername = 'AGE_OF' . $file;
210        $newername =~ s/\W/_/g;
211        $newername = '$' . $newername;
212        $out .= tab . "(-M _ < $newername)";
213        $initnewer .= "my $newername = -M " . quote($file) . ";\n";
214    } elsif ($_ eq 'eval') {
215        my $prog = shift;
216        $prog =~ s/'/\\'/g;
217        $out .= tab . "eval {$prog}";
218    } elsif ($_ eq 'depth') {
219        $find = 'finddepth';
220        next;
221    } elsif ($_ eq 'ls') {
222        $out .= tab . "ls";
223        $declaresubs .= "sub ls ();\n";
224        $init{ls} = 1;
225	$print_needed = 0;
226    } elsif ($_ eq 'tar') {
227        die "-tar must have a filename argument\n" unless @ARGV;
228        my $file = shift;
229        my $fh = 'FH' . $file;
230        $fh =~ s/\W/_/g;
231        $out .= tab . "tar(*$fh, \$name)";
232        $flushall .= "tflushall;\n";
233        $declaresubs .= "sub tar;\nsub tflushall ();\n";
234        $initfile .= "open($fh, " . quote('> ' . $file) .
235                     qq{) || die "Can't open $fh: \$!\\n";\n};
236        $init{tar} = 1;
237    } elsif (/^(n?)cpio\z/) {
238        die "-$_ must have a filename argument\n" unless @ARGV;
239        my $file = shift;
240        my $fh = 'FH' . $file;
241        $fh =~ s/\W/_/g;
242        $out .= tab . "cpio(*$fh, \$name, '$1')";
243        $find = 'finddepth';
244        $flushall .= "cflushall;\n";
245        $declaresubs .= "sub cpio;\nsub cflushall ();\n";
246        $initfile .= "open($fh, " . quote('> ' . $file) .
247                     qq{) || die "Can't open $fh: \$!\\n";\n};
248        $init{cpio} = 1;
249    } else {
250        die "Unrecognized switch: -$_\n";
251    }
252
253    if (@ARGV) {
254        if ($ARGV[0] eq '-o') {
255            { local($statdone) = 1; $out .= "\n" . tab . "||\n"; }
256            $statdone = 0 if $indent_depth == 1 && exists $init{delayedstat};
257            $init{saw_or} = 1;
258            shift;
259        } else {
260            $out .= " &&" unless $Skip_And || $ARGV[0] eq ')';
261            $out .= "\n";
262            shift if $ARGV[0] eq '-a';
263        }
264    }
265}
266
267if ($print_needed) {
268    $out .= "\n" . tab . '&& print("$name\n")';
269}
270
271
272print <<"END";
273$startperl
274    eval 'exec $perlpath -S \$0 \${1+"\$@"}'
275        if 0; #\$running_under_some_shell
276
277use strict;
278use File::Find ();
279
280# Set the variable \$File::Find::dont_use_nlink if you're using AFS,
281# since AFS cheats.
282
283# for the convenience of &wanted calls, including -eval statements:
284use vars qw/*name *dir *prune/;
285*name   = *File::Find::name;
286*dir    = *File::Find::dir;
287*prune  = *File::Find::prune;
288
289$declaresubs
290
291END
292
293if (exists $init{doexec}) {
294    print <<'END';
295use Cwd ();
296my $cwd = Cwd::cwd();
297
298END
299}
300
301if (exists $init{ls}) {
302    print <<'END';
303my @rwx = qw(--- --x -w- -wx r-- r-x rw- rwx);
304my @moname = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
305
306END
307}
308
309if (exists $init{user} || exists $init{ls} || exists $init{tar}) {
310    print "my (%uid, %user);\n";
311    print "while (my (\$name, \$pw, \$uid) = getpwent) {\n";
312    print '    $uid{$name} = $uid{$uid} = $uid;', "\n"
313        if exists $init{user};
314    print '    $user{$uid} = $name unless exists $user{$uid};', "\n"
315        if exists $init{ls} || exists $init{tar};
316    print "}\n\n";
317}
318
319if (exists $init{group} || exists $init{ls} || exists $init{tar}) {
320    print "my (%gid, %group);\n";
321    print "while (my (\$name, \$pw, \$gid) = getgrent) {\n";
322    print '    $gid{$name} = $gid{$gid} = $gid;', "\n"
323        if exists $init{group};
324    print '    $group{$gid} = $name unless exists $group{$gid};', "\n"
325        if exists $init{ls} || exists $init{tar};
326    print "}\n\n";
327}
328
329print $initnewer, "\n" if $initnewer ne '';
330print $initfile, "\n" if $initfile ne '';
331$flushall .= "exit;\n";
332if (exists $init{declarestat}) {
333    $out = <<'END' . $out;
334    my ($dev,$ino,$mode,$nlink,$uid,$gid);
335
336END
337}
338
339if ( $follow_in_effect ) {
340$out =~ s/lstat\(\$_\)/lstat(_)/;
341print <<"END";
342$decl
343# Traverse desired filesystems
344File::Find::$find( {wanted => \\&wanted, follow => 1}, $roots);
345$flushall
346
347sub wanted {
348$out;
349}
350
351END
352} else {
353print <<"END";
354$decl
355# Traverse desired filesystems
356File::Find::$find({wanted => \\&wanted}, $roots);
357$flushall
358
359sub wanted {
360$out;
361}
362
363END
364}
365
366if (exists $init{doexec}) {
367    print <<'END';
368
369sub doexec ($@) {
370    my $ok = shift;
371    my @command = @_; # copy so we don't try to s/// aliases to constants
372    for my $word (@command)
373        { $word =~ s#{}#$name#g }
374    if ($ok) {
375        my $old = select(STDOUT);
376        $| = 1;
377        print "@command";
378        select($old);
379        return 0 unless <STDIN> =~ /^y/;
380    }
381    chdir $cwd; #sigh
382    system @command;
383    chdir $File::Find::dir;
384    return !$?;
385}
386
387END
388}
389
390if (exists $init{ls}) {
391    print <<'INTRO', <<"SUB", <<'END';
392
393sub sizemm {
394    my $rdev = shift;
395    sprintf("%3d, %3d", ($rdev >> 8) & 0xff, $rdev & 0xff);
396}
397
398sub ls () {
399    my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
400INTRO
401        \$atime,\$mtime,\$ctime,\$blksize,\$blocks) = $stat(_);
402SUB
403    my $pname = $name;
404
405    $blocks
406        or $blocks = int(($size + 1023) / 1024);
407
408    my $perms = $rwx[$mode & 7];
409    $mode >>= 3;
410    $perms = $rwx[$mode & 7] . $perms;
411    $mode >>= 3;
412    $perms = $rwx[$mode & 7] . $perms;
413    substr($perms, 2, 1) =~ tr/-x/Ss/ if -u _;
414    substr($perms, 5, 1) =~ tr/-x/Ss/ if -g _;
415    substr($perms, 8, 1) =~ tr/-x/Tt/ if -k _;
416    if    (-f _) { $perms = '-' . $perms; }
417    elsif (-d _) { $perms = 'd' . $perms; }
418    elsif (-l _) { $perms = 'l' . $perms; $pname .= ' -> ' . readlink($_); }
419    elsif (-c _) { $perms = 'c' . $perms; $size = sizemm($rdev); }
420    elsif (-b _) { $perms = 'b' . $perms; $size = sizemm($rdev); }
421    elsif (-p _) { $perms = 'p' . $perms; }
422    elsif (-S _) { $perms = 's' . $perms; }
423    else         { $perms = '?' . $perms; }
424
425    my $user = $user{$uid} || $uid;
426    my $group = $group{$gid} || $gid;
427
428    my ($sec,$min,$hour,$mday,$mon,$timeyear) = localtime($mtime);
429    if (-M _ > 365.25 / 2) {
430        $timeyear += 1900;
431    } else {
432        $timeyear = sprintf("%02d:%02d", $hour, $min);
433    }
434
435    printf "%5lu %4ld %-10s %3d %-8s %-8s %8s %s %2d %5s %s\n",
436            $ino,
437                 $blocks,
438                      $perms,
439                            $nlink,
440                                $user,
441                                     $group,
442                                          $size,
443                                              $moname[$mon],
444                                                 $mday,
445                                                     $timeyear,
446                                                         $pname;
447    1;
448}
449
450END
451}
452
453
454if (exists $init{cpio} || exists $init{tar}) {
455print <<'END';
456
457my %blocks = ();
458
459sub flush {
460    my ($fh, $varref, $blksz) = @_;
461
462    while (length($$varref) >= $blksz) {
463        no strict qw/refs/;
464        syswrite($fh, $$varref, $blksz);
465        substr($$varref, 0, $blksz) = '';
466        ++$blocks{$fh};
467    }
468}
469
470END
471}
472
473
474if (exists $init{cpio}) {
475    print <<'INTRO', <<"SUB", <<'END';
476
477my %cpout = ();
478my %nc = ();
479
480sub cpio {
481    my ($fh, $fname, $nc) = @_;
482    my $text = '';
483    my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
484        $atime,$mtime,$ctime,$blksize,$blocks);
485    local (*IN);
486
487    if ( ! defined $fname ) {
488        $fname = 'TRAILER!!!';
489        ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
490          $atime,$mtime,$ctime,$blksize,$blocks) = (0) x 13;
491    } else {
492        ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
493INTRO
494          \$atime,\$mtime,\$ctime,\$blksize,\$blocks) = $stat(_);
495SUB
496        if (-f _) {
497            open(IN, "./$_\0") || do {
498                warn "Couldn't open $fname: $!\n";
499                return;
500            }
501        } else {
502            $text = readlink($_);
503            $size = 0 unless defined $text;
504        }
505    }
506
507    $fname =~ s#^\./##;
508    $nc{$fh} = $nc;
509    if ($nc eq 'n') {
510        $cpout{$fh} .=
511          sprintf("%06o%06o%06o%06o%06o%06o%06o%06o%011lo%06o%011lo%s\0",
512            070707,
513            $dev & 0777777,
514            $ino & 0777777,
515            $mode & 0777777,
516            $uid & 0777777,
517            $gid & 0777777,
518            $nlink & 0777777,
519            $rdev & 0177777,
520            $mtime,
521            length($fname)+1,
522            $size,
523            $fname);
524    } else {
525        $cpout{$fh} .= "\0" if length($cpout{$fh}) & 1;
526        $cpout{$fh} .= pack("SSSSSSSSLSLa*",
527            070707, $dev, $ino, $mode, $uid, $gid, $nlink, $rdev, $mtime,
528            length($fname)+1, $size,
529            $fname . (length($fname) & 1 ? "\0" : "\0\0"));
530    }
531
532    if ($text ne '') {
533        $cpout{$fh} .= $text;
534    } elsif ($size) {
535        my $l;
536        flush($fh, \$cpout{$fh}, 5120)
537            while ($l = length($cpout{$fh})) >= 5120;
538        while (sysread(IN, $cpout{$fh}, 5120 - $l, $l)) {
539            flush($fh, \$cpout{$fh}, 5120);
540            $l = length($cpout{$fh});
541        }
542        close IN;
543    }
544}
545
546sub cflushall () {
547    for my $fh (keys %cpout) {
548        cpio($fh, undef, $nc{$fh});
549        $cpout{$fh} .= "0" x (5120 - length($cpout{$fh}));
550        flush($fh, \$cpout{$fh}, 5120);
551        print $blocks{$fh} * 10, " blocks\n";
552    }
553}
554
555END
556}
557
558if (exists $init{tar}) {
559    print <<'INTRO', <<"SUB", <<'END';
560
561my %tarout = ();
562my %linkseen = ();
563
564sub tar {
565    my ($fh, $fname) = @_;
566    my $prefix = '';
567    my $typeflag = '0';
568    my $linkname;
569    my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
570INTRO
571        \$atime,\$mtime,\$ctime,\$blksize,\$blocks) = $stat(_);
572SUB
573    local (*IN);
574
575    if ($nlink > 1) {
576        if ($linkname = $linkseen{$fh, $dev, $ino}) {
577            if (length($linkname) > 100) {
578                warn "$0: omitting file with linkname ",
579                     "too long for tar output: $linkname\n";
580                return;
581            }
582            $typeflag = '1';
583            $size = 0;
584        } else {
585            $linkseen{$fh, $dev, $ino} = $fname;
586        }
587    }
588    if ($typeflag eq '0') {
589        if (-f _) {
590            open(IN, "./$_\0") || do {
591                warn "Couldn't open $fname: $!\n";
592                return;
593            }
594        } else {
595            $linkname = readlink($_);
596            if (defined $linkname) { $typeflag = '2' }
597            elsif (-c _) { $typeflag = '3' }
598            elsif (-b _) { $typeflag = '4' }
599            elsif (-d _) { $typeflag = '5' }
600            elsif (-p _) { $typeflag = '6' }
601        }
602    }
603
604    if (length($fname) > 100) {
605        ($prefix, $fname) = ($fname =~ m#\A(.*?)/(.{,100})\Z(?!\n)#);
606        if (!defined($fname) || length($prefix) > 155) {
607            warn "$0: omitting file with name too long for tar output: ",
608                 $fname, "\n";
609            return;
610        }
611    }
612
613    $size = 0 if $typeflag ne '0';
614    my $header = pack("a100a8a8a8a12a12a8a1a100a6a2a32a32a8a8a155",
615                        $fname,
616                        sprintf("%7o ", $mode &    0777),
617                        sprintf("%7o ", $uid  & 0777777),
618                        sprintf("%7o ", $gid  & 0777777),
619                        sprintf("%11o ", $size),
620                        sprintf("%11o ", $mtime),
621                        ' 'x8,
622                        $typeflag,
623                        defined $linkname ? $linkname : '',
624                        "ustar\0",
625                        "00",
626                        $user{$uid},
627                        $group{$gid},
628                        ($rdev >> 8) & 0xff,
629                        $rdev & 0xff,
630                        $prefix,
631                     );
632    substr($header, 148, 8) = sprintf("%7o ", unpack("%16C*", $header));
633    my $l = length($header) % 512;
634    $tarout{$fh} .= $header;
635    $tarout{$fh} .= "\0" x (512 - $l) if $l;
636
637    if ($size) {
638        flush($fh, \$tarout{$fh}, 10240)
639            while ($l = length($tarout{$fh})) >= 10240;
640        while (sysread(IN, $tarout{$fh}, 10240 - $l, $l)) {
641            my $slop = length($tarout{$fh}) % 512;
642            $tarout{$fh} .= "\0" x (512 - $slop) if $slop;
643            flush($fh, \$tarout{$fh}, 10240);
644            $l = length($tarout{$fh});
645        }
646        close IN;
647    }
648}
649
650sub tflushall () {
651    my $len;
652    for my $fh (keys %tarout) {
653        $len = 10240 - length($tarout{$fh});
654        $len += 10240 if $len < 1024;
655        $tarout{$fh} .= "\0" x $len;
656        flush($fh, \$tarout{$fh}, 10240);
657    }
658}
659
660END
661}
662
663exit;
664
665############################################################################
666
667sub tab () {
668    my $tabstring;
669
670    $tabstring = "\t" x ($indent_depth/2) . ' ' x ($indent_depth%2 * 4);
671    if (!$statdone) {
672        if ($_ =~ /^(?:name|print|prune|exec|ok|\(|\))/) {
673            $init{delayedstat} = 1;
674        } else {
675            my $statcall = '(($dev,$ino,$mode,$nlink,$uid,$gid) = '
676                         . $stat . '($_))';
677            if (exists $init{saw_or}) {
678                $tabstring .= "(\$nlink || $statcall) &&\n" . $tabstring;
679            } else {
680                $tabstring .= "$statcall &&\n" . $tabstring;
681            }
682            $statdone = 1;
683            $init{declarestat} = 1;
684        }
685    }
686    $tabstring =~ s/^\s+/ / if $out =~ /!$/;
687    $tabstring;
688}
689
690sub fileglob_to_re ($) {
691    my $x = shift;
692    $x =~ s#([./^\$()+])#\\$1#g;
693    $x =~ s#([?*])#.$1#g;
694    "^$x\\z";
695}
696
697sub n ($$) {
698    my ($pre, $n) = @_;
699    $n =~ s/^-/< / || $n =~ s/^\+/> / || $n =~ s/^/== /;
700    $n =~ s/ 0*(\d)/ $1/;
701    "($pre $n)";
702}
703
704sub quote ($) {
705    my $string = shift;
706    $string =~ s/\\/\\\\/g;
707    $string =~ s/'/\\'/g;
708    "'$string'";
709}
710
711__END__
712
713=head1 NAME
714
715find2perl - translate find command lines to Perl code
716
717=head1 SYNOPSIS
718
719	find2perl [paths] [predicates] | perl
720
721=head1 DESCRIPTION
722
723find2perl is a little translator to convert find command lines to
724equivalent Perl code.  The resulting code is typically faster than
725running find itself.
726
727"paths" are a set of paths where find2perl will start its searches and
728"predicates" are taken from the following list.
729
730=over 4
731
732=item C<! PREDICATE>
733
734Negate the sense of the following predicate.  The C<!> must be passed as
735a distinct argument, so it may need to be surrounded by whitespace and/or
736quoted from interpretation by the shell using a backslash (just as with
737using C<find(1)>).
738
739=item C<( PREDICATES )>
740
741Group the given PREDICATES.  The parentheses must be passed as distinct
742arguments, so they may need to be surrounded by whitespace and/or
743quoted from interpretation by the shell using a backslash (just as with
744using C<find(1)>).
745
746=item C<PREDICATE1 PREDICATE2>
747
748True if _both_ PREDICATE1 and PREDICATE2 are true; PREDICATE2 is not
749evaluated if PREDICATE1 is false.
750
751=item C<PREDICATE1 -o PREDICATE2>
752
753True if either one of PREDICATE1 or PREDICATE2 is true; PREDICATE2 is
754not evaluated if PREDICATE1 is true.
755
756=item C<-follow>
757
758Follow (dereference) symlinks.  The checking of file attributes depends
759on the position of the C<-follow> option. If it precedes the file
760check option, an C<stat> is done which means the file check applies to the
761file the symbolic link is pointing to. If C<-follow> option follows the
762file check option, this now applies to the symbolic link itself, i.e.
763an C<lstat> is done.
764
765=item C<-depth>
766
767Change directory traversal algorithm from breadth-first to depth-first.
768
769=item C<-prune>
770
771Do not descend into the directory currently matched.
772
773=item C<-xdev>
774
775Do not traverse mount points (prunes search at mount-point directories).
776
777=item C<-name GLOB>
778
779File name matches specified GLOB wildcard pattern.  GLOB may need to be
780quoted to avoid interpretation by the shell (just as with using
781C<find(1)>).
782
783=item C<-perm PERM>
784
785Low-order 9 bits of permission match octal value PERM.
786
787=item C<-perm -PERM>
788
789The bits specified in PERM are all set in file's permissions.
790
791=item C<-type X>
792
793The file's type matches perl's C<-X> operator.
794
795=item C<-fstype TYPE>
796
797Filesystem of current path is of type TYPE (only NFS/non-NFS distinction
798is implemented).
799
800=item C<-user USER>
801
802True if USER is owner of file.
803
804=item C<-group GROUP>
805
806True if file's group is GROUP.
807
808=item C<-nouser>
809
810True if file's owner is not in password database.
811
812=item C<-nogroup>
813
814True if file's group is not in group database.
815
816=item C<-inum INUM>
817
818True file's inode number is INUM.
819
820=item C<-links N>
821
822True if (hard) link count of file matches N (see below).
823
824=item C<-size N>
825
826True if file's size matches N (see below) N is normally counted in
827512-byte blocks, but a suffix of "c" specifies that size should be
828counted in characters (bytes) and a suffix of "k" specifes that
829size should be counted in 1024-byte blocks.
830
831=item C<-atime N>
832
833True if last-access time of file matches N (measured in days) (see
834below).
835
836=item C<-ctime N>
837
838True if last-changed time of file's inode matches N (measured in days,
839see below).
840
841=item C<-mtime N>
842
843True if last-modified time of file matches N (measured in days, see below).
844
845=item C<-newer FILE>
846
847True if last-modified time of file matches N.
848
849=item C<-print>
850
851Print out path of file (always true). If none of C<-exec>, C<-ls>,
852C<-print0>, or C<-ok> is specified, then C<-print> will be added
853implicitly.
854
855=item C<-print0>
856
857Like -print, but terminates with \0 instead of \n.
858
859=item C<-exec OPTIONS ;>
860
861exec() the arguments in OPTIONS in a subprocess; any occurrence of {} in
862OPTIONS will first be substituted with the path of the current
863file.  Note that the command "rm" has been special-cased to use perl's
864unlink() function instead (as an optimization).  The C<;> must be passed as
865a distinct argument, so it may need to be surrounded by whitespace and/or
866quoted from interpretation by the shell using a backslash (just as with
867using C<find(1)>).
868
869=item C<-ok OPTIONS ;>
870
871Like -exec, but first prompts user; if user's response does not begin
872with a y, skip the exec.  The C<;> must be passed as
873a distinct argument, so it may need to be surrounded by whitespace and/or
874quoted from interpretation by the shell using a backslash (just as with
875using C<find(1)>).
876
877=item C<-eval EXPR>
878
879Has the perl script eval() the EXPR.
880
881=item C<-ls>
882
883Simulates C<-exec ls -dils {} ;>
884
885=item C<-tar FILE>
886
887Adds current output to tar-format FILE.
888
889=item C<-cpio FILE>
890
891Adds current output to old-style cpio-format FILE.
892
893=item C<-ncpio FILE>
894
895Adds current output to "new"-style cpio-format FILE.
896
897=back
898
899Predicates which take a numeric argument N can come in three forms:
900
901   * N is prefixed with a +: match values greater than N
902   * N is prefixed with a -: match values less than N
903   * N is not prefixed with either + or -: match only values equal to N
904
905=head1 SEE ALSO
906
907find
908
909=cut
910!NO!SUBS!
911
912close OUT or die "Can't close $file: $!";
913chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
914exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';
915chdir $origdir;
916