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@ -1,6 +1,6 @@ |
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#! /usr/bin/perl -w |
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# Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. |
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# Copyright (C) 1999, 2000, 2001, 200 Free Software Foundation, Inc. |
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# This file is part of GNU CC. |
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@ -30,9 +30,12 @@ $section = ""; |
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@icstack = (); |
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@endwstack = (); |
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@skstack = (); |
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@instack = (); |
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$shift = ""; |
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%defs = (); |
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$fnno = 1; |
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$inf = ""; |
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$ibase = ""; |
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while ($_ = shift) { |
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if (/^-D(.*)$/) { |
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@ -41,15 +44,13 @@ while ($_ = shift) { |
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} else { |
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$flag = shift; |
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} |
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$value=$flag; |
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$value =~ s,^[a-zA-Z0-9_]+,,; |
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$value =~ s,.*=,,; |
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$flag =~ s,=.*$,,; |
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$value = ""; |
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($flag, $value) = ($flag =~ /^([^=]+)(?:=(.+))?/); |
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die "no flag specified for -D\n" |
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unless $flag ne ""; |
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#print STDERR "FL = $flag, V = $value\n"; |
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die "flags may only contain letters, digits, hyphens, dashes and underscores\n" |
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unless $flag =~ /^[a-zA-Z0-9_-]+$/; |
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$defs{$flag} = $value; |
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} elsif (/^-/) { |
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usage(); |
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} else { |
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@ -60,14 +61,19 @@ while ($_ = shift) { |
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} |
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if (defined $in) { |
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open(STDIN, $in) or die "opening \"$in\": $!\n"; |
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$inf = gensym(); |
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open($inf, "<$in") or die "opening \"$in\": $!\n"; |
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$ibase = $1 if $in =~ m|^(.+)/[^/]+$|; |
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} else { |
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$inf = \*STDIN; |
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} |
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if (defined $out) { |
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open(STDOUT, ">$out") or die "opening \"$out\": $!\n"; |
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} |
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while(<STDIN>) |
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{ |
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while(defined $inf) { |
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while(<$inf>) { |
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# Certain commands are discarded without further processing. |
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/^\@(?: |
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[a-z]+index # @*index: useful only in complete manual |
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@ -75,8 +81,9 @@ while(<STDIN>) |
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|(?:end\s+)?group # @group .. @end group: ditto |
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|page # @page: ditto |
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|node # @node: useful only in .info file |
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|(?:end\s+)?ifnottex # @ifnottex .. @end ifnottex: use contents |
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)\b/x and next; |
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chomp; |
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# Look for filename and title markers. |
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@ -84,7 +91,7 @@ while(<STDIN>) |
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/^\@settitle\s+([^.]+)/ and $tl = postprocess($1), next; |
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# Identify a man title but keep only the one we are interested in. |
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/^\@c man title ([A-Za-z0-9]+) (.+)/ and do { |
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/^\@c\s+man\s+title\s+([A-Za-z0-9-]+)\s+(.+)/ and do { |
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if (exists $defs{$1}) { |
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$fn = $1; |
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$tl = postprocess($2); |
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@ -95,19 +102,30 @@ while(<STDIN>) |
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# Look for blocks surrounded by @c man begin SECTION ... @c man end. |
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# This really oughta be @ifman ... @end ifman and the like, but such |
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# would require rev'ing all other Texinfo translators. |
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/^\@c man begin ([A-Z]+) ([A-Za-z0-9]+)/ and do { |
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/^\@c\s+man\s+begin\s+([A-Z]+)\s+([A-Za-z0-9-]+)/ and do { |
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$output = 1 if exists $defs{$2}; |
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$sect = $1; |
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next; |
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}; |
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/^\@c man begin ([A-Z]+)/ and $sect = $1, $output = 1, next; |
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/^\@c man end/ and do { |
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/^\@c\s+man\s+begin\s+([A-Z]+)/ and $sect = $1, $output = 1, next; |
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/^\@c\s+man\s+end/ and do { |
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$sects{$sect} = "" unless exists $sects{$sect}; |
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$sects{$sect} .= postprocess($section); |
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$section = ""; |
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$output = 0; |
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next; |
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}; |
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# handle variables |
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/^\@set\s+([a-zA-Z0-9_-]+)\s*(.*)$/ and do { |
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$defs{$1} = $2; |
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next; |
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}; |
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/^\@clear\s+([a-zA-Z0-9_-]+)/ and do { |
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delete $defs{$1}; |
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next; |
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}; |
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next unless $output; |
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# Discard comments. (Can't do it above, because then we'd never see |
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@ -120,20 +138,20 @@ while(<STDIN>) |
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# Ignore @end foo, where foo is not an operation which may |
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# cause us to skip, if we are presently skipping. |
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my $ended = $1; |
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next if $skipping && $ended !~ /^(?:ifset|ifclear|ignore|menu)$/; |
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next if $skipping && $ended !~ /^(?:ifset|ifclear|ignore|menu|iftex)$/; |
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die "\@end $ended without \@$ended at line $.\n" unless defined $endw; |
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die "\@$endw ended by \@end $ended at line $.\n" unless $ended eq $endw; |
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$endw = pop @endwstack; |
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if ($ended =~ /^(?:ifset|ifclear|ignore|menu)$/) { |
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if ($ended =~ /^(?:ifset|ifclear|ignore|menu|iftex)$/) { |
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$skipping = pop @skstack; |
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next; |
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} elsif ($ended =~ /^(?:example|smallexample)$/) { |
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} elsif ($ended =~ /^(?:example|smallexample|display)$/) { |
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$shift = ""; |
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$_ = ""; # need a paragraph break |
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} elsif ($ended =~ /^(?:itemize|enumerate|table)$/) { |
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} elsif ($ended =~ /^(?:itemize|enumerate|[fv]?table)$/) { |
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$_ = "\n=back\n"; |
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$ic = pop @icstack; |
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} else { |
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@ -160,7 +178,7 @@ while(<STDIN>) |
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next; |
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}; |
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/^\@(ignore|menu)\b/ and do { |
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/^\@(ignore|menu|iftex)\b/ and do { |
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push @endwstack, $endw; |
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push @skstack, $skipping; |
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$endw = $1; |
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@ -189,6 +207,12 @@ while(<STDIN>) |
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s/\@\{/{/g; |
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s/\@\}/}/g; |
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s/\@\@/&at;/g; |
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# Inside a verbatim block, handle @var specially. |
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if ($shift ne "") { |
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s/\@var\{([^\}]*)\}/<$1>/g; |
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} |
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# POD doesn't interpret E<> inside a verbatim block. |
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if ($shift eq "") { |
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s/</</g; |
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@ -199,11 +223,22 @@ while(<STDIN>) |
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} |
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# Single line command handlers. |
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/^\@set\s+([a-zA-Z0-9_-]+)\s*(.*)$/ and $defs{$1} = $2, next; |
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/^\@clear\s+([a-zA-Z0-9_-]+)/ and delete $defs{$1}, next; |
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/^\@section\s+(.+)$/ and $_ = "\n=head2 $1\n"; |
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/^\@subsection\s+(.+)$/ and $_ = "\n=head3 $1\n"; |
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/^\@include\s+(.+)$/ and do { |
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push @instack, $inf; |
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$inf = gensym(); |
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# Try cwd and $ibase. |
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open($inf, "<" . $1) |
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or open($inf, "<" . $ibase . "/" . $1) |
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or die "cannot open $1 or $ibase/$1: $!\n"; |
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next; |
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}; |
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/^\@(?:section|unnumbered|unnumberedsec|center)\s+(.+)$/ |
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and $_ = "\n=head2 $1\n"; |
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/^\@subsection\s+(.+)$/ |
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and $_ = "\n=head3 $1\n"; |
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# Block command handlers: |
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/^\@itemize\s+(\@[a-z]+|\*|-)/ and do { |
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@ -214,7 +249,7 @@ while(<STDIN>) |
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$endw = "itemize"; |
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}; |
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/^\@enumerate(?:\s+([A-Z0-9]+))?/ and do { |
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/^\@enumerate(?:\s+([a-zA-Z0-9]+))?/ and do { |
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push @endwstack, $endw; |
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push @icstack, $ic; |
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if (defined $1) { |
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@ -226,19 +261,19 @@ while(<STDIN>) |
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$endw = "enumerate"; |
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}; |
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/^\@table\s+(\@[a-z]+)/ and do { |
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/^\@([fv]?table)\s+(\@[a-z]+)/ and do { |
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push @endwstack, $endw; |
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push @icstack, $ic; |
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$ic = $1; |
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$endw = $1; |
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$ic = $2; |
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$ic =~ s/\@(?:samp|strong|key|gcctabopt|env)/B/; |
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$ic =~ s/\@(?:code|kbd)/C/; |
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$ic =~ s/\@(?:dfn|var|emph|cite|i)/I/; |
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$ic =~ s/\@(?:file)/F/; |
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$_ = "\n=over 4\n"; |
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$endw = "table"; |
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}; |
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/^\@((?:small)?example)/ and do { |
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/^\@((?:small)?example|display)/ and do { |
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push @endwstack, $endw; |
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$endw = $1; |
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$shift = "\t"; |
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@ -251,12 +286,17 @@ while(<STDIN>) |
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$_ = "\n=item $ic\<$1\>\n"; |
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} else { |
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$_ = "\n=item $ic\n"; |
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$ic =~ y/A-Ya-y1-8/B-Zb-z2-9/; |
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$ic =~ y/A-Ya-y/B-Zb-z/; |
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$ic =~ s/(\d+)/$1 + 1/eg; |
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} |
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}; |
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$section .= $shift.$_."\n"; |
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} |
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# End of current file. |
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close($inf); |
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$inf = pop @instack; |
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} |
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die "No filename or title\n" unless defined $fn && defined $tl; |
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@ -284,13 +324,15 @@ sub postprocess |
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local $_ = $_[0]; |
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# @value{foo} is replaced by whatever 'foo' is defined as. |
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if (/\@value\{([a-zA-Z0-9_-]+)\}/) { |
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if (! exists $defs{$1}) { |
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print STDERR "Option $1 not define\n"; |
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while (m/(\@value\{([a-zA-Z0-9_-]+)\})/g) { |
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if (! exists $defs{$2}) { |
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print STDERR "Option $2 not defined\n"; |
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s/\Q$1\E//; |
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} else { |
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$value = $defs{$2}; |
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s/\Q$1\E/$value/; |
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} |
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} |
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s/\@value\{([a-zA-Z0-9_-]+)\}/$defs{$1}/g; |
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# Formatting commands. |
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# Temporary escape for @r. |
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@ -303,9 +345,6 @@ sub postprocess |
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s/\@w\{([^\}]*)\}/S<$1>/g; |
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s/\@(?:dmn|math)\{([^\}]*)\}/$1/g; |
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# Handle @r inside bold. |
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1 while s/B<((?:[^<>]|I<[^<>]*>)*)R<([^>]*)>/B<$1>${2}B</g; |
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# Cross references are thrown away, as are @noindent and @refill. |
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# (@noindent is impossible in .pod, and @refill is unnecessary.) |
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# @* is also impossible in .pod; we discard it and any newline that |
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@ -327,9 +366,11 @@ sub postprocess |
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s/\@uref\{([^\},]*),([^\},]*),([^\},]*)\}/$3/g; |
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# Turn B<blah I<blah> blah> into B<blah> I<blah> B<blah> to |
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# match Texinfo semantics of @emph inside @samp. |
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# match Texinfo semantics of @emph inside @samp. Also handle @r |
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# inside bold. |
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s/</</g; |
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s/>/>/g; |
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1 while s/B<((?:[^<>]|I<[^<>]*>)*)R<([^>]*)>/B<$1>${2}B</g; |
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1 while (s/B<([^<>]*)I<([^>]+)>/B<$1>I<$2>B</g); |
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1 while (s/I<([^<>]*)B<([^>]+)>/I<$1>B<$2>I</g); |
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s/[BI]<>//g; |
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@ -372,4 +413,15 @@ sub add_footnote |
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$sects{FOOTNOTES} .= $_[0]; |
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$sects{FOOTNOTES} .= "\n\n"; |
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} |
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# stolen from Symbol.pm |
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{ |
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my $genseq = 0; |
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sub gensym |
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{ |
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my $name = "GEN" . $genseq++; |
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my $ref = \*{$name}; |
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delete $::{$name}; |
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return $ref; |
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} |
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} |
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Nick Clifton
24 years ago