[perl5.git] / x2p / s2p.PL

#!/usr/local/bin/perl

use Config;
use File::Basename qw(&basename &dirname);

# List explicitly here the variables you want Configure to
# generate.  Metaconfig only looks for shell variables, so you
# have to mention them as if they were shell variables, not
# %Config entries.  Thus you write
#  $startperl
# to ensure Configure will look for $Config{startperl}.

# This forces PL files to create target in same directory as PL file.
# This is so that make depend always knows where to find PL derivatives.
chdir(dirname($0));
($file = basename($0)) =~ s/\.PL$//;
$file =~ s/\.pl$//
	if ($Config{'osname'} eq 'VMS' or
	    $Config{'osname'} eq 'OS2');  # "case-forgiving"

open OUT,">$file" or die "Can't create $file: $!";

print "Extracting $file (with variable substitutions)\n";

# In this section, perl variables will be expanded during extraction.
# You can use $Config{...} to use Configure variables.

print OUT <<"!GROK!THIS!";
$Config{'startperl'}
    eval 'exec perl -S \$0 "\$@"'
	if 0;
\$startperl = "$Config{startperl}";
!GROK!THIS!

# In the following, perl variables are not expanded during extraction.

print OUT <<'!NO!SUBS!';

# $RCSfile: s2p.SH,v $$Revision: 4.1 $$Date: 92/08/07 18:29:23 $
#
# $Log:	s2p.SH,v $

$indent = 4;
$shiftwidth = 4;
$l = '{'; $r = '}';

while ($ARGV[0] =~ /^-/) {
    $_ = shift;
  last if /^--/;
    if (/^-D/) {
	$debug++;
	open(BODY,'>-');
	next;
    }
    if (/^-n/) {
	$assumen++;
	next;
    }
    if (/^-p/) {
	$assumep++;
	next;
    }
    die "I don't recognize this switch: $_\n";
}

unless ($debug) {
    open(BODY,">/tmp/sperl$$") ||
      &Die("Can't open temp file: $!\n");
}

if (!$assumen && !$assumep) {
    print BODY &q(<<'EOT');
:	while ($ARGV[0] =~ /^-/) {
:	    $_ = shift;
:	  last if /^--/;
:	    if (/^-n/) {
:		$nflag++;
:		next;
:	    }
:	    die "I don't recognize this switch: $_\\n";
:	}
:	
EOT
}

print BODY &q(<<'EOT');
:	#ifdef PRINTIT
:	#ifdef ASSUMEP
:	$printit++;
:	#else
:	$printit++ unless $nflag;
:	#endif
:	#endif
:	<><>
:	$\ = "\n";		# automatically add newline on print
:	<><>
:	#ifdef TOPLABEL
:	LINE:
:	while (chop($_ = <>)) {
:	#else
:	LINE:
:	while (<>) {
:	    chop;
:	#endif
EOT

LINE:
while (<>) {

    # Wipe out surrounding whitespace.

    s/[ \t]*(.*)\n$/$1/;

    # Perhaps it's a label/comment.

    if (/^:/) {
	s/^:[ \t]*//;
	$label = &make_label($_);
	if ($. == 1) {
	    $toplabel = $label;
	    if (/^(top|(re)?start|redo|begin(ning)|again|input)$/i) {
		$_ = <>;
		redo LINE; # Never referenced, so delete it if not a comment.
	    }
	}
	$_ = "$label:";
	if ($lastlinewaslabel++) {
	    $indent += 4;
	    print BODY &tab, ";\n";
	    $indent -= 4;
	}
	if ($indent >= 2) {
	    $indent -= 2;
	    $indmod = 2;
	}
	next;
    } else {
	$lastlinewaslabel = '';
    }

    # Look for one or two address clauses

    $addr1 = '';
    $addr2 = '';
    if (s/^([0-9]+)//) {
	$addr1 = "$1";
	$addr1 = "\$. == $addr1" unless /^,/;
    }
    elsif (s/^\$//) {
	$addr1 = 'eof()';
    }
    elsif (s|^/||) {
	$addr1 = &fetchpat('/');
    }
    if (s/^,//) {
	if (s/^([0-9]+)//) {
	    $addr2 = "$1";
	} elsif (s/^\$//) {
	    $addr2 = "eof()";
	} elsif (s|^/||) {
	    $addr2 = &fetchpat('/');
	} else {
	    &Die("Invalid second address at line $.\n");
	}
	if ($addr2 =~ /^\d+$/) {
	    $addr1 .= "..$addr2";
	}
	else {
	    $addr1 .= "...$addr2";
	}
    }

    # Now we check for metacommands {, }, and ! and worry
    # about indentation.

    s/^[ \t]+//;
    # a { to keep vi happy
    if ($_ eq '}') {
	$indent -= 4;
	next;
    }
    if (s/^!//) {
	$if = 'unless';
	$else = "$r else $l\n";
    } else {
	$if = 'if';
	$else = '';
    }
    if (s/^{//) {	# a } to keep vi happy
	$indmod = 4;
	$redo = $_;
	$_ = '';
	$rmaybe = '';
    } else {
	$rmaybe = "\n$r";
	if ($addr2 || $addr1) {
	    $space = ' ' x $shiftwidth;
	} else {
	    $space = '';
	}
	$_ = &transmogrify();
    }

    # See if we can optimize to modifier form.

    if ($addr1) {
	if ($_ !~ /[\n{}]/ && $rmaybe && !$change &&
	  $_ !~ / if / && $_ !~ / unless /) {
	    s/;$/ $if $addr1;/;
	    $_ = substr($_,$shiftwidth,1000);
	} else {
	    $_ = "$if ($addr1) $l\n$change$_$rmaybe";
	}
	$change = '';
	next LINE;
    }
} continue {
    @lines = split(/\n/,$_);
    for (@lines) {
	unless (s/^ *<<--//) {
	    print BODY &tab;
	}
	print BODY $_, "\n";
    }
    $indent += $indmod;
    $indmod = 0;
    if ($redo) {
	$_ = $redo;
	$redo = '';
	redo LINE;
    }
}
if ($lastlinewaslabel++) {
    $indent += 4;
    print BODY &tab, ";\n";
    $indent -= 4;
}

if ($appendseen || $tseen || !$assumen) {
    $printit++ if $dseen || (!$assumen && !$assumep);
    print BODY &q(<<'EOT');
:	#ifdef SAWNEXT
:	}
:	continue {
:	#endif
:	#ifdef PRINTIT
:	#ifdef DSEEN
:	#ifdef ASSUMEP
:	    print if $printit++;
:	#else
:	    if ($printit)
:		{ print; }
:	    else
:		{ $printit++ unless $nflag; }
:	#endif
:	#else
:	    print if $printit;
:	#endif
:	#else
:	    print;
:	#endif
:	#ifdef TSEEN
:	    $tflag = 0;
:	#endif
:	#ifdef APPENDSEEN
:	    if ($atext) { chop $atext; print $atext; $atext = ''; }
:	#endif
EOT

print BODY &q(<<'EOT');
:	}
EOT
}

close BODY;

unless ($debug) {
    open(HEAD,">/tmp/sperl2$$.c")
      || &Die("Can't open temp file 2: $!\n");
    print HEAD "#define PRINTIT\n"	if $printit;
    print HEAD "#define APPENDSEEN\n"	if $appendseen;
    print HEAD "#define TSEEN\n"	if $tseen;
    print HEAD "#define DSEEN\n"	if $dseen;
    print HEAD "#define ASSUMEN\n"	if $assumen;
    print HEAD "#define ASSUMEP\n"	if $assumep;
    print HEAD "#define TOPLABEL\n"	if $toplabel;
    print HEAD "#define SAWNEXT\n"	if $sawnext;
    if ($opens) {print HEAD "$opens\n";}
    open(BODY,"/tmp/sperl$$")
      || &Die("Can't reopen temp file: $!\n");
    while (<BODY>) {
	print HEAD $_;
    }
    close HEAD;

    print &q(<<"EOT");
:	$startperl
:	eval 'exec perl -S \$0 \${1+"\$@"}'
:		if \$running_under_some_shell;
:	
EOT
    open(BODY,"cc -E /tmp/sperl2$$.c |") ||
	&Die("Can't reopen temp file: $!\n");
    while (<BODY>) {
	/^# [0-9]/ && next;
	/^[ \t]*$/ && next;
	s/^<><>//;
	print;
    }
}

&Cleanup;
exit;

sub Cleanup {
    chdir "/tmp";
    unlink "sperl$$", "sperl2$$", "sperl2$$.c";
}
sub Die {
    &Cleanup;
    die $_[0];
}
sub tab {
    "\t" x ($indent / 8) . ' ' x ($indent % 8);
}
sub make_filehandle {
    local($_) = $_[0];
    local($fname) = $_;
    if (!$seen{$fname}) {
	$_ = "FH_" . $_ if /^\d/;
	s/[^a-zA-Z0-9]/_/g;
	s/^_*//;
	$_ = "\U$_";
	if ($fhseen{$_}) {
	    for ($tmp = "a"; $fhseen{"$_$tmp"}; $a++) {}
	    $_ .= $tmp;
	}
	$fhseen{$_} = 1;
	$opens .= &q(<<"EOT");
:	open($_, '>$fname') || die "Can't create $fname: \$!";
EOT
	$seen{$fname} = $_;
    }
    $seen{$fname};
}

sub make_label {
    local($label) = @_;
    $label =~ s/[^a-zA-Z0-9]/_/g;
    if ($label =~ /^[0-9_]/) { $label = 'L' . $label; }
    $label = substr($label,0,8);

    # Could be a reserved word, so capitalize it.
    substr($label,0,1) =~ y/a-z/A-Z/
      if $label =~ /^[a-z]/;

    $label;
}

sub transmogrify {
    {	# case
	if (/^d/) {
	    $dseen++;
	    chop($_ = &q(<<'EOT'));
:	<<--#ifdef PRINTIT
:	$printit = 0;
:	<<--#endif
:	next LINE;
EOT
	    $sawnext++;
	    next;
	}

	if (/^n/) {
	    chop($_ = &q(<<'EOT'));
:	<<--#ifdef PRINTIT
:	<<--#ifdef DSEEN
:	<<--#ifdef ASSUMEP
:	print if $printit++;
:	<<--#else
:	if ($printit)
:	    { print; }
:	else
:	    { $printit++ unless $nflag; }
:	<<--#endif
:	<<--#else
:	print if $printit;
:	<<--#endif
:	<<--#else
:	print;
:	<<--#endif
:	<<--#ifdef APPENDSEEN
:	if ($atext) {chop $atext; print $atext; $atext = '';}
:	<<--#endif
:	$_ = <>;
:	chop;
:	<<--#ifdef TSEEN
:	$tflag = 0;
:	<<--#endif
EOT
	    next;
	}

	if (/^a/) {
	    $appendseen++;
	    $command = $space . "\$atext .= <<'End_Of_Text';\n<<--";
	    $lastline = 0;
	    while (<>) {
		s/^[ \t]*//;
		s/^[\\]//;
		unless (s|\\$||) { $lastline = 1;}
		s/^([ \t]*\n)/<><>$1/;
		$command .= $_;
		$command .= '<<--';
		last if $lastline;
	    }
	    $_ = $command . "End_Of_Text";
	    last;
	}

	if (/^[ic]/) {
	    if (/^c/) { $change = 1; }
	    $addr1 = 1 if $addr1 eq '';
	    $addr1 = '$iter = (' . $addr1 . ')';
	    $command = $space .
	      "    if (\$iter == 1) { print <<'End_Of_Text'; }\n<<--";
	    $lastline = 0;
	    while (<>) {
		s/^[ \t]*//;
		s/^[\\]//;
		unless (s/\\$//) { $lastline = 1;}
		s/'/\\'/g;
		s/^([ \t]*\n)/<><>$1/;
		$command .= $_;
		$command .= '<<--';
		last if $lastline;
	    }
	    $_ = $command . "End_Of_Text";
	    if ($change) {
		$dseen++;
		$change = "$_\n";
		chop($_ = &q(<<"EOT"));
:	<<--#ifdef PRINTIT
:	$space\$printit = 0;
:	<<--#endif
:	${space}next LINE;
EOT
		$sawnext++;
	    }
	    last;
	}

	if (/^s/) {
	    $delim = substr($_,1,1);
	    $len = length($_);
	    $repl = $end = 0;
	    $inbracket = 0;
	    for ($i = 2; $i < $len; $i++) {
		$c = substr($_,$i,1);
		if ($c eq $delim) {
		    if ($inbracket) {
			substr($_, $i, 0) = '\\';
			$i++;
			$len++;
		    }
		    else {
			if ($repl) {
			    $end = $i;
			    last;
			} else {
			    $repl = $i;
			}
		    }
		}
		elsif ($c eq '\\') {
		    $i++;
		    if ($i >= $len) {
			$_ .= 'n';
			$_ .= <>;
			$len = length($_);
			$_ = substr($_,0,--$len);
		    }
		    elsif (substr($_,$i,1) =~ /^[n]$/) {
			;
		    }
		    elsif (!$repl &&
		      substr($_,$i,1) =~ /^[(){}\w]$/) {
			$i--;
			$len--;
			substr($_, $i, 1) = '';
		    }
		    elsif (!$repl &&
		      substr($_,$i,1) =~ /^[<>]$/) {
			substr($_,$i,1) = 'b';
		    }
		    elsif ($repl && substr($_,$i,1) =~ /^\d$/) {
			substr($_,$i-1,1) = '$';
		    }
		}
		elsif ($c eq '&' && $repl) {
		    substr($_, $i, 0) = '$';
		    $i++;
		    $len++;
		}
		elsif ($c eq '$' && $repl) {
		    substr($_, $i, 0) = '\\';
		    $i++;
		    $len++;
		}
		elsif ($c eq '[' && !$repl) {
		    $i++ if substr($_,$i,1) eq '^';
		    $i++ if substr($_,$i,1) eq ']';
		    $inbracket = 1;
		}
		elsif ($c eq ']') {
		    $inbracket = 0;
		}
		elsif ($c eq "\t") {
		    substr($_, $i, 1) = '\\t';
		    $i++;
		    $len++;
		}
		elsif (!$repl && index("()+",$c) >= 0) {
		    substr($_, $i, 0) = '\\';
		    $i++;
		    $len++;
		}
	    }
	    &Die("Malformed substitution at line $.\n")
	      unless $end;
	    $pat = substr($_, 0, $repl + 1);
	    $repl = substr($_, $repl+1, $end-$repl-1);
	    $end = substr($_, $end + 1, 1000);
	    &simplify($pat);
	    $dol = '$';
	    $subst = "$pat$repl$delim";
	    $cmd = '';
	    while ($end) {
		if ($end =~ s/^g//) {
		    $subst .= 'g';
		    next;
		}
		if ($end =~ s/^p//) {
		    $cmd .= ' && (print)';
		    next;
		}
		if ($end =~ s/^w[ \t]*//) {
		    $fh = &make_filehandle($end);
		    $cmd .= " && (print $fh \$_)";
		    $end = '';
		    next;
		}
		&Die("Unrecognized substitution command".
		  "($end) at line $.\n");
	    }
	    chop ($_ = &q(<<"EOT"));
:	<<--#ifdef TSEEN
:	$subst && \$tflag++$cmd;
:	<<--#else
:	$subst$cmd;
:	<<--#endif
EOT
	    next;
	}

	if (/^p/) {
	    $_ = 'print;';
	    next;
	}

	if (/^w/) {
	    s/^w[ \t]*//;
	    $fh = &make_filehandle($_);
	    $_ = "print $fh \$_;";
	    next;
	}

	if (/^r/) {
	    $appendseen++;
	    s/^r[ \t]*//;
	    $file = $_;
	    $_ = "\$atext .= `cat $file 2>/dev/null`;";
	    next;
	}

	if (/^P/) {
	    $_ = 'print $1 if /^(.*)/;';
	    next;
	}

	if (/^D/) {
	    chop($_ = &q(<<'EOT'));
:	s/^.*\n?//;
:	redo LINE if $_;
:	next LINE;
EOT
	    $sawnext++;
	    next;
	}

	if (/^N/) {
	    chop($_ = &q(<<'EOT'));
:	$_ .= "\n";
:	$len1 = length;
:	$_ .= <>;
:	chop if $len1 < length;
:	<<--#ifdef TSEEN
:	$tflag = 0;
:	<<--#endif
EOT
	    next;
	}

	if (/^h/) {
	    $_ = '$hold = $_;';
	    next;
	}

	if (/^H/) {
	    $_ = '$hold .= "\n"; $hold .= $_;';
	    next;
	}

	if (/^g/) {
	    $_ = '$_ = $hold;';
	    next;
	}

	if (/^G/) {
	    $_ = '$_ .= "\n"; $_ .= $hold;';
	    next;
	}

	if (/^x/) {
	    $_ = '($_, $hold) = ($hold, $_);';
	    next;
	}

	if (/^b$/) {
	    $_ = 'next LINE;';
	    $sawnext++;
	    next;
	}

	if (/^b/) {
	    s/^b[ \t]*//;
	    $lab = &make_label($_);
	    if ($lab eq $toplabel) {
		$_ = 'redo LINE;';
	    } else {
		$_ = "goto $lab;";
	    }
	    next;
	}

	if (/^t$/) {
	    $_ = 'next LINE if $tflag;';
	    $sawnext++;
	    $tseen++;
	    next;
	}

	if (/^t/) {
	    s/^t[ \t]*//;
	    $lab = &make_label($_);
	    $_ = q/if ($tflag) {$tflag = 0; /;
	    if ($lab eq $toplabel) {
		$_ .= 'redo LINE;}';
	    } else {
		$_ .= "goto $lab;}";
	    }
	    $tseen++;
	    next;
	}

	if (/^y/) {
	    s/abcdefghijklmnopqrstuvwxyz/a-z/g;
	    s/ABCDEFGHIJKLMNOPQRSTUVWXYZ/A-Z/g;
	    s/abcdef/a-f/g;
	    s/ABCDEF/A-F/g;
	    s/0123456789/0-9/g;
	    s/01234567/0-7/g;
	    $_ .= ';';
	}

	if (/^=/) {
	    $_ = 'print $.;';
	    next;
	}

	if (/^q/) {
	    chop($_ = &q(<<'EOT'));
:	close(ARGV);
:	@ARGV = ();
:	next LINE;
EOT
	    $sawnext++;
	    next;
	}
    } continue {
	if ($space) {
	    s/^/$space/;
	    s/(\n)(.)/$1$space$2/g;
	}
	last;
    }
    $_;
}

sub fetchpat {
    local($outer) = @_;
    local($addr) = $outer;
    local($inbracket);
    local($prefix,$delim,$ch);

    # Process pattern one potential delimiter at a time.

    DELIM: while (s#^([^\]+(|)[\\/]*)([]+(|)[\\/])##) {
	$prefix = $1;
	$delim = $2;
	if ($delim eq '\\') {
	    s/(.)//;
	    $ch = $1;
	    $delim = '' if $ch =~ /^[(){}A-Za-mo-z]$/;
	    $ch = 'b' if $ch =~ /^[<>]$/;
	    $delim .= $ch;
	}
	elsif ($delim eq '[') {
	    $inbracket = 1;
	    s/^\^// && ($delim .= '^');
	    s/^]// && ($delim .= ']');
	}
	elsif ($delim eq ']') {
	    $inbracket = 0;
	}
	elsif ($inbracket || $delim ne $outer) {
	    $delim = '\\' . $delim;
	}
	$addr .= $prefix;
	$addr .= $delim;
	if ($delim eq $outer && !$inbracket) {
	    last DELIM;
	}
    }
    $addr =~ s/\t/\\t/g;
    &simplify($addr);
    $addr;
}

sub q {
    local($string) = @_;
    local($*) = 1;
    $string =~ s/^:\t?//g;
    $string;
}

sub simplify {
    $_[0] =~ s/_a-za-z0-9/\\w/ig;
    $_[0] =~ s/a-z_a-z0-9/\\w/ig;
    $_[0] =~ s/a-za-z_0-9/\\w/ig;
    $_[0] =~ s/a-za-z0-9_/\\w/ig;
    $_[0] =~ s/_0-9a-za-z/\\w/ig;
    $_[0] =~ s/0-9_a-za-z/\\w/ig;
    $_[0] =~ s/0-9a-z_a-z/\\w/ig;
    $_[0] =~ s/0-9a-za-z_/\\w/ig;
    $_[0] =~ s/\[\\w\]/\\w/g;
    $_[0] =~ s/\[^\\w\]/\\W/g;
    $_[0] =~ s/\[0-9\]/\\d/g;
    $_[0] =~ s/\[^0-9\]/\\D/g;
    $_[0] =~ s/\\d\\d\*/\\d+/g;
    $_[0] =~ s/\\D\\D\*/\\D+/g;
    $_[0] =~ s/\\w\\w\*/\\w+/g;
    $_[0] =~ s/\\t\\t\*/\\t+/g;
    $_[0] =~ s/(\[.[^]]*\])\1\*/$1+/g;
    $_[0] =~ s/([\w\s!@#%^&-=,:;'"])\1\*/$1+/g;
}

!NO!SUBS!

close OUT or die "Can't close $file: $!";
chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';
Commit	Line	Data
4633a7c4 LW	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	$file =~ s/\.pl$//
	18	if ($Config{'osname'} eq 'VMS' or
	19	$Config{'osname'} eq 'OS2'); # "case-forgiving"
	20
	21	open OUT,">$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!";
	29	$Config{'startperl'}
	30	eval 'exec perl -S \$0 "\$@"'
	31	if 0;
f70b6ff5	32	\$startperl = "$Config{startperl}";
a687059c LW	33	!GROK!THIS!
a687059c LW	34
4633a7c4 LW	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 LW	42
	43	$indent = 4;
	44	$shiftwidth = 4;
	45	$l = '{'; $r = '}';
8d063cd8	46
0a12ae7d	47	while ($ARGV[0] =~ /^-/) {
8d063cd8 LW	48	$_ = shift;
	49	last if /^--/;
	50	if (/^-D/) {
	51	$debug++;
0a12ae7d	52	open(BODY,'>-');
8d063cd8 LW	53	next;
	54	}
	55	if (/^-n/) {
	56	$assumen++;
	57	next;
	58	}
	59	if (/^-p/) {
	60	$assumep++;
	61	next;
	62	}
378cc40b	63	die "I don't recognize this switch: $_\n";
8d063cd8 LW	64	}
	65
	66	unless ($debug) {
0a12ae7d LW	67	open(BODY,">/tmp/sperl$$") \|\|
0a12ae7d LW	68	&Die("Can't open temp file: $!\n");
8d063cd8 LW	69	}
	70
	71	if (!$assumen && !$assumep) {
9ef589d8 LW	72	print BODY &q(<<'EOT');
	73	: while ($ARGV[0] =~ /^-/) {
	74	: $_ = shift;
	75	: last if /^--/;
	76	: if (/^-n/) {
	77	: $nflag++;
	78	: next;
	79	: }
	80	: die "I don't recognize this switch: $_\\n";
	81	: }
	82	:
0a12ae7d	83	EOT
8d063cd8 LW	84	}
8d063cd8 LW	85
9ef589d8 LW	86	print BODY &q(<<'EOT');
	87	: #ifdef PRINTIT
	88	: #ifdef ASSUMEP
	89	: $printit++;
	90	: #else
	91	: $printit++ unless $nflag;
	92	: #endif
	93	: #endif
	94	: <><>
	95	: $\ = "\n"; # automatically add newline on print
	96	: <><>
	97	: #ifdef TOPLABEL
	98	: LINE:
	99	: while (chop($_ = <>)) {
	100	: #else
	101	: LINE:
	102	: while (<>) {
	103	: chop;
	104	: #endif
0a12ae7d LW	105	EOT
0a12ae7d LW	106
9ef589d8 LW	107	LINE:
9ef589d8 LW	108	while (<>) {
0a12ae7d LW	109
0a12ae7d LW	110	# Wipe out surrounding whitespace.
8d063cd8	111
8d063cd8	112	s/[ \t](.)\n$/$1/;
0a12ae7d LW	113
	114	# Perhaps it's a label/comment.
	115
8d063cd8 LW	116	if (/^:/) {
8d063cd8 LW	117	s/^:[ \t]*//;
0a12ae7d	118	$label = &make_label($_);
8d063cd8 LW	119	if ($. == 1) {
8d063cd8 LW	120	$toplabel = $label;
9ef589d8 LW	121	if (/^(top\|(re)?start\|redo\|begin(ning)\|again\|input)$/i) {
	122	$_ = <>;
	123	redo LINE; # Never referenced, so delete it if not a comment.
	124	}
8d063cd8 LW	125	}
8d063cd8 LW	126	$_ = "$label:";
ffed7fef LW	127	if ($lastlinewaslabel++) {
ffed7fef LW	128	$indent += 4;
0a12ae7d	129	print BODY &tab, ";\n";
ffed7fef LW	130	$indent -= 4;
ffed7fef LW	131	}
8d063cd8 LW	132	if ($indent >= 2) {
	133	$indent -= 2;
	134	$indmod = 2;
	135	}
	136	next;
	137	} else {
	138	$lastlinewaslabel = '';
	139	}
0a12ae7d LW	140
	141	# Look for one or two address clauses
	142
8d063cd8 LW	143	$addr1 = '';
	144	$addr2 = '';
	145	if (s/^([0-9]+)//) {
	146	$addr1 = "$1";
9ef589d8	147	$addr1 = "\$. == $addr1" unless /^,/;
8d063cd8 LW	148	}
	149	elsif (s/^\$//) {
	150	$addr1 = 'eof()';
	151	}
	152	elsif (s\|^/\|\|) {
0a12ae7d	153	$addr1 = &fetchpat('/');
8d063cd8 LW	154	}
	155	if (s/^,//) {
	156	if (s/^([0-9]+)//) {
	157	$addr2 = "$1";
	158	} elsif (s/^\$//) {
	159	$addr2 = "eof()";
	160	} elsif (s\|^/\|\|) {
0a12ae7d	161	$addr2 = &fetchpat('/');
8d063cd8	162	} else {
0a12ae7d	163	&Die("Invalid second address at line $.\n");
8d063cd8	164	}
2b69d0c2 LW	165	if ($addr2 =~ /^\d+$/) {
	166	$addr1 .= "..$addr2";
	167	}
	168	else {
	169	$addr1 .= "...$addr2";
	170	}
8d063cd8	171	}
0a12ae7d LW	172
	173	# Now we check for metacommands {, }, and ! and worry
	174	# about indentation.
	175
378cc40b	176	s/^[ \t]+//;
0a12ae7d	177	# a { to keep vi happy
8d063cd8 LW	178	if ($_ eq '}') {
	179	$indent -= 4;
	180	next;
	181	}
	182	if (s/^!//) {
	183	$if = 'unless';
	184	$else = "$r else $l\n";
	185	} else {
	186	$if = 'if';
	187	$else = '';
	188	}
	189	if (s/^{//) { # a } to keep vi happy
	190	$indmod = 4;
	191	$redo = $_;
	192	$_ = '';
	193	$rmaybe = '';
	194	} else {
	195	$rmaybe = "\n$r";
	196	if ($addr2 \|\| $addr1) {
a687059c	197	$space = ' ' x $shiftwidth;
8d063cd8 LW	198	} else {
	199	$space = '';
	200	}
0a12ae7d	201	$_ = &transmogrify();
8d063cd8 LW	202	}
8d063cd8 LW	203
0a12ae7d LW	204	# See if we can optimize to modifier form.
0a12ae7d LW	205
8d063cd8 LW	206	if ($addr1) {
	207	if ($_ !~ /[\n{}]/ && $rmaybe && !$change &&
	208	$_ !~ / if / && $_ !~ / unless /) {
	209	s/;$/ $if $addr1;/;
	210	$_ = substr($_,$shiftwidth,1000);
	211	} else {
0a12ae7d	212	$_ = "$if ($addr1) $l\n$change$_$rmaybe";
8d063cd8 LW	213	}
8d063cd8 LW	214	$change = '';
0a12ae7d	215	next LINE;
8d063cd8 LW	216	}
	217	} continue {
	218	@lines = split(/\n/,$_);
0a12ae7d	219	for (@lines) {
8d063cd8	220	unless (s/^ *<<--//) {
0a12ae7d	221	print BODY &tab;
8d063cd8	222	}
0a12ae7d	223	print BODY $_, "\n";
8d063cd8 LW	224	}
	225	$indent += $indmod;
	226	$indmod = 0;
	227	if ($redo) {
	228	$_ = $redo;
	229	$redo = '';
0a12ae7d	230	redo LINE;
8d063cd8 LW	231	}
8d063cd8 LW	232	}
ffed7fef LW	233	if ($lastlinewaslabel++) {
ffed7fef LW	234	$indent += 4;
0a12ae7d	235	print BODY &tab, ";\n";
ffed7fef LW	236	$indent -= 4;
ffed7fef LW	237	}
8d063cd8	238
8d063cd8 LW	239	if ($appendseen \|\| $tseen \|\| !$assumen) {
8d063cd8 LW	240	$printit++ if $dseen \|\| (!$assumen && !$assumep);
9ef589d8 LW	241	print BODY &q(<<'EOT');
	242	: #ifdef SAWNEXT
	243	: }
	244	: continue {
	245	: #endif
	246	: #ifdef PRINTIT
	247	: #ifdef DSEEN
	248	: #ifdef ASSUMEP
	249	: print if $printit++;
	250	: #else
	251	: if ($printit)
	252	: { print; }
	253	: else
	254	: { $printit++ unless $nflag; }
	255	: #endif
	256	: #else
	257	: print if $printit;
	258	: #endif
	259	: #else
	260	: print;
	261	: #endif
	262	: #ifdef TSEEN
	263	: $tflag = 0;
	264	: #endif
	265	: #ifdef APPENDSEEN
	266	: if ($atext) { chop $atext; print $atext; $atext = ''; }
	267	: #endif
	268	EOT
	269
	270	print BODY &q(<<'EOT');
	271	: }
0a12ae7d	272	EOT
8d063cd8 LW	273	}
8d063cd8 LW	274
0a12ae7d	275	close BODY;
8d063cd8 LW	276
8d063cd8 LW	277	unless ($debug) {
0a12ae7d LW	278	open(HEAD,">/tmp/sperl2$$.c")
0a12ae7d LW	279	\|\| &Die("Can't open temp file 2: $!\n");
9ef589d8 LW	280	print HEAD "#define PRINTIT\n" if $printit;
	281	print HEAD "#define APPENDSEEN\n" if $appendseen;
	282	print HEAD "#define TSEEN\n" if $tseen;
	283	print HEAD "#define DSEEN\n" if $dseen;
	284	print HEAD "#define ASSUMEN\n" if $assumen;
	285	print HEAD "#define ASSUMEP\n" if $assumep;
	286	print HEAD "#define TOPLABEL\n" if $toplabel;
	287	print HEAD "#define SAWNEXT\n" if $sawnext;
0a12ae7d LW	288	if ($opens) {print HEAD "$opens\n";}
	289	open(BODY,"/tmp/sperl$$")
	290	\|\| &Die("Can't reopen temp file: $!\n");
	291	while (<BODY>) {
	292	print HEAD $_;
8d063cd8	293	}
0a12ae7d	294	close HEAD;
8d063cd8	295
9ef589d8	296	print &q(<<"EOT");
4633a7c4 LW	297	: $startperl
4633a7c4 LW	298	: eval 'exec perl -S \$0 \${1+"\$@"}'
9ef589d8 LW	299	: if \$running_under_some_shell;
9ef589d8 LW	300	:
0a12ae7d LW	301	EOT
	302	open(BODY,"cc -E /tmp/sperl2$$.c \|") \|\|
	303	&Die("Can't reopen temp file: $!\n");
	304	while (<BODY>) {
8d063cd8 LW	305	/^# [0-9]/ && next;
	306	/^[ \t]*$/ && next;
	307	s/^<><>//;
	308	print;
	309	}
	310	}
	311
0a12ae7d LW	312	&Cleanup;
0a12ae7d LW	313	exit;
8d063cd8	314
0a12ae7d LW	315	sub Cleanup {
	316	chdir "/tmp";
	317	unlink "sperl$$", "sperl2$$", "sperl2$$.c";
	318	}
8d063cd8	319	sub Die {
0a12ae7d	320	&Cleanup;
8d063cd8 LW	321	die $_[0];
8d063cd8 LW	322	}
0a12ae7d LW	323	sub tab {
	324	"\t" x ($indent / 8) . ' ' x ($indent % 8);
	325	}
8d063cd8	326	sub make_filehandle {
0a12ae7d LW	327	local($_) = $_[0];
0a12ae7d LW	328	local($fname) = $_;
9ef589d8 LW	329	if (!$seen{$fname}) {
	330	$_ = "FH_" . $_ if /^\d/;
	331	s/[^a-zA-Z0-9]/_/g;
	332	s/^_*//;
	333	$_ = "\U$_";
	334	if ($fhseen{$_}) {
	335	for ($tmp = "a"; $fhseen{"$_$tmp"}; $a++) {}
	336	$_ .= $tmp;
	337	}
	338	$fhseen{$_} = 1;
	339	$opens .= &q(<<"EOT");
	340	: open($_, '>$fname') \|\| die "Can't create $fname: \$!";
0a12ae7d	341	EOT
9ef589d8	342	$seen{$fname} = $_;
8d063cd8	343	}
9ef589d8	344	$seen{$fname};
8d063cd8 LW	345	}
	346
	347	sub make_label {
0a12ae7d	348	local($label) = @_;
8d063cd8 LW	349	$label =~ s/[^a-zA-Z0-9]/_/g;
	350	if ($label =~ /^[0-9_]/) { $label = 'L' . $label; }
	351	$label = substr($label,0,8);
0a12ae7d LW	352
	353	# Could be a reserved word, so capitalize it.
	354	substr($label,0,1) =~ y/a-z/A-Z/
	355	if $label =~ /^[a-z]/;
	356
8d063cd8 LW	357	$label;
	358	}
	359
	360	sub transmogrify {
	361	{ # case
	362	if (/^d/) {
	363	$dseen++;
9ef589d8 LW	364	chop($_ = &q(<<'EOT'));
	365	: <<--#ifdef PRINTIT
	366	: $printit = 0;
	367	: <<--#endif
	368	: next LINE;
0a12ae7d	369	EOT
9ef589d8	370	$sawnext++;
8d063cd8 LW	371	next;
	372	}
	373
	374	if (/^n/) {
9ef589d8 LW	375	chop($_ = &q(<<'EOT'));
	376	: <<--#ifdef PRINTIT
	377	: <<--#ifdef DSEEN
	378	: <<--#ifdef ASSUMEP
	379	: print if $printit++;
	380	: <<--#else
	381	: if ($printit)
	382	: { print; }
	383	: else
	384	: { $printit++ unless $nflag; }
	385	: <<--#endif
	386	: <<--#else
	387	: print if $printit;
	388	: <<--#endif
	389	: <<--#else
	390	: print;
	391	: <<--#endif
	392	: <<--#ifdef APPENDSEEN
	393	: if ($atext) {chop $atext; print $atext; $atext = '';}
	394	: <<--#endif
	395	: $_ = <>;
	396	: chop;
	397	: <<--#ifdef TSEEN
	398	: $tflag = 0;
	399	: <<--#endif
0a12ae7d	400	EOT
8d063cd8 LW	401	next;
	402	}
	403
	404	if (/^a/) {
	405	$appendseen++;
9ef589d8	406	$command = $space . "\$atext .= <<'End_Of_Text';\n<<--";
8d063cd8 LW	407	$lastline = 0;
	408	while (<>) {
	409	s/^[ \t]*//;
	410	s/^[\\]//;
	411	unless (s\|\\$\|\|) { $lastline = 1;}
8d063cd8 LW	412	s/^([ \t]*\n)/<><>$1/;
	413	$command .= $_;
	414	$command .= '<<--';
	415	last if $lastline;
	416	}
9ef589d8	417	$_ = $command . "End_Of_Text";
8d063cd8 LW	418	last;
	419	}
	420
	421	if (/^[ic]/) {
	422	if (/^c/) { $change = 1; }
9ef589d8	423	$addr1 = 1 if $addr1 eq '';
8d063cd8	424	$addr1 = '$iter = (' . $addr1 . ')';
9ef589d8 LW	425	$command = $space .
9ef589d8 LW	426	" if (\$iter == 1) { print <<'End_Of_Text'; }\n<<--";
8d063cd8 LW	427	$lastline = 0;
	428	while (<>) {
	429	s/^[ \t]*//;
	430	s/^[\\]//;
	431	unless (s/\\$//) { $lastline = 1;}
	432	s/'/\\'/g;
	433	s/^([ \t]*\n)/<><>$1/;
	434	$command .= $_;
	435	$command .= '<<--';
	436	last if $lastline;
	437	}
9ef589d8	438	$_ = $command . "End_Of_Text";
8d063cd8 LW	439	if ($change) {
	440	$dseen++;
	441	$change = "$_\n";
9ef589d8 LW	442	chop($_ = &q(<<"EOT"));
	443	: <<--#ifdef PRINTIT
	444	: $space\$printit = 0;
	445	: <<--#endif
	446	: ${space}next LINE;
0a12ae7d	447	EOT
9ef589d8	448	$sawnext++;
8d063cd8 LW	449	}
	450	last;
	451	}
	452
	453	if (/^s/) {
	454	$delim = substr($_,1,1);
	455	$len = length($_);
	456	$repl = $end = 0;
a687059c	457	$inbracket = 0;
8d063cd8 LW	458	for ($i = 2; $i < $len; $i++) {
8d063cd8 LW	459	$c = substr($_,$i,1);
a687059c LW	460	if ($c eq $delim) {
a687059c LW	461	if ($inbracket) {
0a12ae7d	462	substr($_, $i, 0) = '\\';
a687059c LW	463	$i++;
	464	$len++;
	465	}
	466	else {
	467	if ($repl) {
	468	$end = $i;
	469	last;
	470	} else {
	471	$repl = $i;
	472	}
	473	}
	474	}
	475	elsif ($c eq '\\') {
8d063cd8 LW	476	$i++;
	477	if ($i >= $len) {
	478	$_ .= 'n';
	479	$_ .= <>;
	480	$len = length($_);
	481	$_ = substr($_,0,--$len);
	482	}
00bf170e LW	483	elsif (substr($_,$i,1) =~ /^[n]$/) {
	484	;
	485	}
0a12ae7d LW	486	elsif (!$repl &&
0a12ae7d LW	487	substr($_,$i,1) =~ /^[(){}\w]$/) {
8d063cd8 LW	488	$i--;
8d063cd8 LW	489	$len--;
0a12ae7d	490	substr($_, $i, 1) = '';
8d063cd8	491	}
0a12ae7d LW	492	elsif (!$repl &&
0a12ae7d LW	493	substr($_,$i,1) =~ /^[<>]$/) {
9f68db38 LW	494	substr($_,$i,1) = 'b';
9f68db38 LW	495	}
2b69d0c2 LW	496	elsif ($repl && substr($_,$i,1) =~ /^\d$/) {
	497	substr($_,$i-1,1) = '$';
	498	}
	499	}
	500	elsif ($c eq '&' && $repl) {
	501	substr($_, $i, 0) = '$';
	502	$i++;
	503	$len++;
	504	}
	505	elsif ($c eq '$' && $repl) {
	506	substr($_, $i, 0) = '\\';
	507	$i++;
	508	$len++;
8d063cd8	509	}
a687059c LW	510	elsif ($c eq '[' && !$repl) {
	511	$i++ if substr($_,$i,1) eq '^';
	512	$i++ if substr($_,$i,1) eq ']';
	513	$inbracket = 1;
8d063cd8	514	}
a687059c LW	515	elsif ($c eq ']') {
	516	$inbracket = 0;
	517	}
9ef589d8 LW	518	elsif ($c eq "\t") {
	519	substr($_, $i, 1) = '\\t';
	520	$i++;
	521	$len++;
	522	}
ae986130	523	elsif (!$repl && index("()+",$c) >= 0) {
0a12ae7d	524	substr($_, $i, 0) = '\\';
8d063cd8 LW	525	$i++;
	526	$len++;
	527	}
	528	}
0a12ae7d LW	529	&Die("Malformed substitution at line $.\n")
0a12ae7d LW	530	unless $end;
8d063cd8	531	$pat = substr($_, 0, $repl + 1);
0a12ae7d	532	$repl = substr($_, $repl+1, $end-$repl-1);
8d063cd8	533	$end = substr($_, $end + 1, 1000);
9ef589d8	534	&simplify($pat);
8d063cd8	535	$dol = '$';
8d063cd8 LW	536	$subst = "$pat$repl$delim";
	537	$cmd = '';
	538	while ($end) {
0a12ae7d LW	539	if ($end =~ s/^g//) {
	540	$subst .= 'g';
	541	next;
	542	}
	543	if ($end =~ s/^p//) {
	544	$cmd .= ' && (print)';
	545	next;
	546	}
8d063cd8	547	if ($end =~ s/^w[ \t]*//) {
0a12ae7d	548	$fh = &make_filehandle($end);
8d063cd8 LW	549	$cmd .= " && (print $fh \$_)";
	550	$end = '';
	551	next;
	552	}
0a12ae7d LW	553	&Die("Unrecognized substitution command".
0a12ae7d LW	554	"($end) at line $.\n");
8d063cd8	555	}
9ef589d8 LW	556	chop ($_ = &q(<<"EOT"));
	557	: <<--#ifdef TSEEN
	558	: $subst && \$tflag++$cmd;
	559	: <<--#else
	560	: $subst$cmd;
	561	: <<--#endif
0a12ae7d	562	EOT
8d063cd8 LW	563	next;
	564	}
	565
	566	if (/^p/) {
	567	$_ = 'print;';
	568	next;
	569	}
	570
	571	if (/^w/) {
	572	s/^w[ \t]*//;
0a12ae7d	573	$fh = &make_filehandle($_);
8d063cd8 LW	574	$_ = "print $fh \$_;";
	575	next;
	576	}
	577
	578	if (/^r/) {
	579	$appendseen++;
	580	s/^r[ \t]*//;
	581	$file = $_;
	582	$_ = "\$atext .= `cat $file 2>/dev/null`;";
	583	next;
	584	}
	585
	586	if (/^P/) {
9ef589d8	587	$_ = 'print $1 if /^(.*)/;';
8d063cd8 LW	588	next;
	589	}
	590
	591	if (/^D/) {
9ef589d8 LW	592	chop($_ = &q(<<'EOT'));
	593	: s/^.*\n?//;
	594	: redo LINE if $_;
	595	: next LINE;
0a12ae7d	596	EOT
9ef589d8	597	$sawnext++;
8d063cd8 LW	598	next;
	599	}
	600
	601	if (/^N/) {
9ef589d8 LW	602	chop($_ = &q(<<'EOT'));
	603	: $_ .= "\n";
	604	: $len1 = length;
	605	: $_ .= <>;
	606	: chop if $len1 < length;
	607	: <<--#ifdef TSEEN
	608	: $tflag = 0;
	609	: <<--#endif
0a12ae7d	610	EOT
8d063cd8 LW	611	next;
	612	}
	613
	614	if (/^h/) {
	615	$_ = '$hold = $_;';
	616	next;
	617	}
	618
	619	if (/^H/) {
9ef589d8	620	$_ = '$hold .= "\n"; $hold .= $_;';
8d063cd8 LW	621	next;
	622	}
	623
	624	if (/^g/) {
	625	$_ = '$_ = $hold;';
	626	next;
	627	}
	628
	629	if (/^G/) {
9ef589d8	630	$_ = '$_ .= "\n"; $_ .= $hold;';
8d063cd8 LW	631	next;
	632	}
	633
	634	if (/^x/) {
	635	$_ = '($_, $hold) = ($hold, $_);';
	636	next;
	637	}
	638
	639	if (/^b$/) {
0a12ae7d	640	$_ = 'next LINE;';
9ef589d8	641	$sawnext++;
8d063cd8 LW	642	next;
	643	}
	644
	645	if (/^b/) {
	646	s/^b[ \t]*//;
0a12ae7d	647	$lab = &make_label($_);
8d063cd8	648	if ($lab eq $toplabel) {
0a12ae7d	649	$_ = 'redo LINE;';
8d063cd8 LW	650	} else {
	651	$_ = "goto $lab;";
	652	}
	653	next;
	654	}
	655
	656	if (/^t$/) {
0a12ae7d	657	$_ = 'next LINE if $tflag;';
9ef589d8	658	$sawnext++;
8d063cd8 LW	659	$tseen++;
	660	next;
	661	}
	662
	663	if (/^t/) {
	664	s/^t[ \t]*//;
0a12ae7d	665	$lab = &make_label($_);
9ef589d8	666	$_ = q/if ($tflag) {$tflag = 0; /;
8d063cd8	667	if ($lab eq $toplabel) {
0a12ae7d	668	$_ .= 'redo LINE;}';
8d063cd8	669	} else {
0a12ae7d	670	$_ .= "goto $lab;}";
8d063cd8 LW	671	}
	672	$tseen++;
	673	next;
	674	}
	675
9ef589d8 LW	676	if (/^y/) {
	677	s/abcdefghijklmnopqrstuvwxyz/a-z/g;
	678	s/ABCDEFGHIJKLMNOPQRSTUVWXYZ/A-Z/g;
	679	s/abcdef/a-f/g;
	680	s/ABCDEF/A-F/g;
	681	s/0123456789/0-9/g;
	682	s/01234567/0-7/g;
	683	$_ .= ';';
	684	}
	685
8d063cd8	686	if (/^=/) {
9ef589d8	687	$_ = 'print $.;';
8d063cd8 LW	688	next;
	689	}
	690
	691	if (/^q/) {
9ef589d8 LW	692	chop($_ = &q(<<'EOT'));
	693	: close(ARGV);
	694	: @ARGV = ();
	695	: next LINE;
0a12ae7d	696	EOT
9ef589d8	697	$sawnext++;
8d063cd8 LW	698	next;
	699	}
	700	} continue {
	701	if ($space) {
	702	s/^/$space/;
	703	s/(\n)(.)/$1$space$2/g;
	704	}
	705	last;
	706	}
	707	$_;
	708	}
	709
a687059c LW	710	sub fetchpat {
	711	local($outer) = @_;
	712	local($addr) = $outer;
	713	local($inbracket);
	714	local($prefix,$delim,$ch);
	715
0a12ae7d LW	716	# Process pattern one potential delimiter at a time.
	717
	718	DELIM: while (s#^([^\]+(\|)[\\/]*)([]+(\|)[\\/])##) {
a687059c LW	719	$prefix = $1;
a687059c LW	720	$delim = $2;
a687059c LW	721	if ($delim eq '\\') {
	722	s/(.)//;
	723	$ch = $1;
00bf170e	724	$delim = '' if $ch =~ /^[(){}A-Za-mo-z]$/;
9f68db38 LW	725	$ch = 'b' if $ch =~ /^[<>]$/;
9f68db38 LW	726	$delim .= $ch;
a687059c LW	727	}
	728	elsif ($delim eq '[') {
	729	$inbracket = 1;
	730	s/^\^// && ($delim .= '^');
	731	s/^]// && ($delim .= ']');
a687059c LW	732	}
	733	elsif ($delim eq ']') {
	734	$inbracket = 0;
	735	}
	736	elsif ($inbracket \|\| $delim ne $outer) {
a687059c LW	737	$delim = '\\' . $delim;
	738	}
	739	$addr .= $prefix;
	740	$addr .= $delim;
	741	if ($delim eq $outer && !$inbracket) {
0a12ae7d	742	last DELIM;
a687059c LW	743	}
a687059c LW	744	}
9ef589d8 LW	745	$addr =~ s/\t/\\t/g;
9ef589d8 LW	746	&simplify($addr);
a687059c LW	747	$addr;
	748	}
	749
9ef589d8 LW	750	sub q {
	751	local($string) = @_;
	752	local($*) = 1;
	753	$string =~ s/^:\t?//g;
	754	$string;
	755	}
	756
	757	sub simplify {
	758	$_[0] =~ s/_a-za-z0-9/\\w/ig;
	759	$_[0] =~ s/a-z_a-z0-9/\\w/ig;
	760	$_[0] =~ s/a-za-z_0-9/\\w/ig;
	761	$_[0] =~ s/a-za-z0-9_/\\w/ig;
	762	$_[0] =~ s/_0-9a-za-z/\\w/ig;
	763	$_[0] =~ s/0-9_a-za-z/\\w/ig;
	764	$_[0] =~ s/0-9a-z_a-z/\\w/ig;
	765	$_[0] =~ s/0-9a-za-z_/\\w/ig;
	766	$_[0] =~ s/\[\\w\]/\\w/g;
	767	$_[0] =~ s/\[^\\w\]/\\W/g;
	768	$_[0] =~ s/\[0-9\]/\\d/g;
	769	$_[0] =~ s/\[^0-9\]/\\D/g;
	770	$_[0] =~ s/\\d\\d\*/\\d+/g;
	771	$_[0] =~ s/\\D\\D\*/\\D+/g;
	772	$_[0] =~ s/\\w\\w\*/\\w+/g;
	773	$_[0] =~ s/\\t\\t\*/\\t+/g;
	774	$_[0] =~ s/(\[.[^]]\])\1\/$1+/g;
	775	$_[0] =~ s/([\w\s!@#%^&-=,:;'"])\1\*/$1+/g;
	776	}
	777
a687059c	778	!NO!SUBS!
4633a7c4 LW	779
	780	close OUT or die "Can't close $file: $!";
	781	chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
	782	exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';