diff options
Diffstat (limited to 'etc/texi2pod.pl')
| -rw-r--r-- | etc/texi2pod.pl | 132 |
1 files changed, 92 insertions, 40 deletions
diff --git a/etc/texi2pod.pl b/etc/texi2pod.pl index e6ad9f9..bdc20e8 100644 --- a/etc/texi2pod.pl +++ b/etc/texi2pod.pl @@ -1,6 +1,6 @@ #! /usr/bin/perl -w -# Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. +# Copyright (C) 1999, 2000, 2001, 200 Free Software Foundation, Inc. # This file is part of GNU CC. @@ -30,9 +30,12 @@ $section = ""; @icstack = (); @endwstack = (); @skstack = (); +@instack = (); $shift = ""; %defs = (); $fnno = 1; +$inf = ""; +$ibase = ""; while ($_ = shift) { if (/^-D(.*)$/) { @@ -41,15 +44,13 @@ while ($_ = shift) { } else { $flag = shift; } - $value=$flag; - $value =~ s,^[a-zA-Z0-9_]+,,; - $value =~ s,.*=,,; - $flag =~ s,=.*$,,; + $value = ""; + ($flag, $value) = ($flag =~ /^([^=]+)(?:=(.+))?/); die "no flag specified for -D\n" unless $flag ne ""; - #print STDERR "FL = $flag, V = $value\n"; + die "flags may only contain letters, digits, hyphens, dashes and underscores\n" + unless $flag =~ /^[a-zA-Z0-9_-]+$/; $defs{$flag} = $value; - } elsif (/^-/) { usage(); } else { @@ -60,14 +61,19 @@ while ($_ = shift) { } if (defined $in) { - open(STDIN, $in) or die "opening \"$in\": $!\n"; + $inf = gensym(); + open($inf, "<$in") or die "opening \"$in\": $!\n"; + $ibase = $1 if $in =~ m|^(.+)/[^/]+$|; +} else { + $inf = \*STDIN; } + if (defined $out) { open(STDOUT, ">$out") or die "opening \"$out\": $!\n"; } -while(<STDIN>) -{ +while(defined $inf) { +while(<$inf>) { # Certain commands are discarded without further processing. /^\@(?: [a-z]+index # @*index: useful only in complete manual @@ -75,8 +81,9 @@ while(<STDIN>) |(?:end\s+)?group # @group .. @end group: ditto |page # @page: ditto |node # @node: useful only in .info file + |(?:end\s+)?ifnottex # @ifnottex .. @end ifnottex: use contents )\b/x and next; - + chomp; # Look for filename and title markers. @@ -84,7 +91,7 @@ while(<STDIN>) /^\@settitle\s+([^.]+)/ and $tl = postprocess($1), next; # Identify a man title but keep only the one we are interested in. - /^\@c man title ([A-Za-z0-9]+) (.+)/ and do { + /^\@c\s+man\s+title\s+([A-Za-z0-9-]+)\s+(.+)/ and do { if (exists $defs{$1}) { $fn = $1; $tl = postprocess($2); @@ -95,19 +102,30 @@ while(<STDIN>) # Look for blocks surrounded by @c man begin SECTION ... @c man end. # This really oughta be @ifman ... @end ifman and the like, but such # would require rev'ing all other Texinfo translators. - /^\@c man begin ([A-Z]+) ([A-Za-z0-9]+)/ and do { + /^\@c\s+man\s+begin\s+([A-Z]+)\s+([A-Za-z0-9-]+)/ and do { $output = 1 if exists $defs{$2}; $sect = $1; next; }; - /^\@c man begin ([A-Z]+)/ and $sect = $1, $output = 1, next; - /^\@c man end/ and do { + /^\@c\s+man\s+begin\s+([A-Z]+)/ and $sect = $1, $output = 1, next; + /^\@c\s+man\s+end/ and do { $sects{$sect} = "" unless exists $sects{$sect}; $sects{$sect} .= postprocess($section); $section = ""; $output = 0; next; }; + + # handle variables + /^\@set\s+([a-zA-Z0-9_-]+)\s*(.*)$/ and do { + $defs{$1} = $2; + next; + }; + /^\@clear\s+([a-zA-Z0-9_-]+)/ and do { + delete $defs{$1}; + next; + }; + next unless $output; # Discard comments. (Can't do it above, because then we'd never see @@ -120,20 +138,20 @@ while(<STDIN>) # Ignore @end foo, where foo is not an operation which may # cause us to skip, if we are presently skipping. my $ended = $1; - next if $skipping && $ended !~ /^(?:ifset|ifclear|ignore|menu)$/; + next if $skipping && $ended !~ /^(?:ifset|ifclear|ignore|menu|iftex)$/; die "\@end $ended without \@$ended at line $.\n" unless defined $endw; die "\@$endw ended by \@end $ended at line $.\n" unless $ended eq $endw; $endw = pop @endwstack; - if ($ended =~ /^(?:ifset|ifclear|ignore|menu)$/) { + if ($ended =~ /^(?:ifset|ifclear|ignore|menu|iftex)$/) { $skipping = pop @skstack; next; - } elsif ($ended =~ /^(?:example|smallexample)$/) { + } elsif ($ended =~ /^(?:example|smallexample|display)$/) { $shift = ""; $_ = ""; # need a paragraph break - } elsif ($ended =~ /^(?:itemize|enumerate|table)$/) { + } elsif ($ended =~ /^(?:itemize|enumerate|[fv]?table)$/) { $_ = "\n=back\n"; $ic = pop @icstack; } else { @@ -160,7 +178,7 @@ while(<STDIN>) next; }; - /^\@(ignore|menu)\b/ and do { + /^\@(ignore|menu|iftex)\b/ and do { push @endwstack, $endw; push @skstack, $skipping; $endw = $1; @@ -189,6 +207,12 @@ while(<STDIN>) s/\@\{/{/g; s/\@\}/}/g; s/\@\@/&at;/g; + + # Inside a verbatim block, handle @var specially. + if ($shift ne "") { + s/\@var\{([^\}]*)\}/<$1>/g; + } + # POD doesn't interpret E<> inside a verbatim block. if ($shift eq "") { s/</</g; @@ -199,11 +223,22 @@ while(<STDIN>) } # Single line command handlers. - /^\@set\s+([a-zA-Z0-9_-]+)\s*(.*)$/ and $defs{$1} = $2, next; - /^\@clear\s+([a-zA-Z0-9_-]+)/ and delete $defs{$1}, next; - /^\@section\s+(.+)$/ and $_ = "\n=head2 $1\n"; - /^\@subsection\s+(.+)$/ and $_ = "\n=head3 $1\n"; + /^\@include\s+(.+)$/ and do { + push @instack, $inf; + $inf = gensym(); + + # Try cwd and $ibase. + open($inf, "<" . $1) + or open($inf, "<" . $ibase . "/" . $1) + or die "cannot open $1 or $ibase/$1: $!\n"; + next; + }; + + /^\@(?:section|unnumbered|unnumberedsec|center)\s+(.+)$/ + and $_ = "\n=head2 $1\n"; + /^\@subsection\s+(.+)$/ + and $_ = "\n=head3 $1\n"; # Block command handlers: /^\@itemize\s+(\@[a-z]+|\*|-)/ and do { @@ -214,7 +249,7 @@ while(<STDIN>) $endw = "itemize"; }; - /^\@enumerate(?:\s+([A-Z0-9]+))?/ and do { + /^\@enumerate(?:\s+([a-zA-Z0-9]+))?/ and do { push @endwstack, $endw; push @icstack, $ic; if (defined $1) { @@ -226,19 +261,19 @@ while(<STDIN>) $endw = "enumerate"; }; - /^\@table\s+(\@[a-z]+)/ and do { + /^\@([fv]?table)\s+(\@[a-z]+)/ and do { push @endwstack, $endw; push @icstack, $ic; - $ic = $1; + $endw = $1; + $ic = $2; $ic =~ s/\@(?:samp|strong|key|gcctabopt|env)/B/; $ic =~ s/\@(?:code|kbd)/C/; $ic =~ s/\@(?:dfn|var|emph|cite|i)/I/; $ic =~ s/\@(?:file)/F/; $_ = "\n=over 4\n"; - $endw = "table"; }; - /^\@((?:small)?example)/ and do { + /^\@((?:small)?example|display)/ and do { push @endwstack, $endw; $endw = $1; $shift = "\t"; @@ -251,12 +286,17 @@ while(<STDIN>) $_ = "\n=item $ic\<$1\>\n"; } else { $_ = "\n=item $ic\n"; - $ic =~ y/A-Ya-y1-8/B-Zb-z2-9/; + $ic =~ y/A-Ya-y/B-Zb-z/; + $ic =~ s/(\d+)/$1 + 1/eg; } }; $section .= $shift.$_."\n"; } +# End of current file. +close($inf); +$inf = pop @instack; +} die "No filename or title\n" unless defined $fn && defined $tl; @@ -284,13 +324,15 @@ sub postprocess local $_ = $_[0]; # @value{foo} is replaced by whatever 'foo' is defined as. - if (/\@value\{([a-zA-Z0-9_-]+)\}/) { - if (! exists $defs{$1}) { - print STDERR "Option $1 not define\n"; + while (m/(\@value\{([a-zA-Z0-9_-]+)\})/g) { + if (! exists $defs{$2}) { + print STDERR "Option $2 not defined\n"; + s/\Q$1\E//; + } else { + $value = $defs{$2}; + s/\Q$1\E/$value/; } - } - s/\@value\{([a-zA-Z0-9_-]+)\}/$defs{$1}/g; # Formatting commands. # Temporary escape for @r. @@ -303,9 +345,6 @@ sub postprocess s/\@w\{([^\}]*)\}/S<$1>/g; s/\@(?:dmn|math)\{([^\}]*)\}/$1/g; - # Handle @r inside bold. - 1 while s/B<((?:[^<>]|I<[^<>]*>)*)R<([^>]*)>/B<$1>${2}B</g; - # Cross references are thrown away, as are @noindent and @refill. # (@noindent is impossible in .pod, and @refill is unnecessary.) # @* is also impossible in .pod; we discard it and any newline that @@ -327,9 +366,11 @@ sub postprocess s/\@uref\{([^\},]*),([^\},]*),([^\},]*)\}/$3/g; # Turn B<blah I<blah> blah> into B<blah> I<blah> B<blah> to - # match Texinfo semantics of @emph inside @samp. + # match Texinfo semantics of @emph inside @samp. Also handle @r + # inside bold. s/</</g; s/>/>/g; + 1 while s/B<((?:[^<>]|I<[^<>]*>)*)R<([^>]*)>/B<$1>${2}B</g; 1 while (s/B<([^<>]*)I<([^>]+)>/B<$1>I<$2>B</g); 1 while (s/I<([^<>]*)B<([^>]+)>/I<$1>B<$2>I</g); s/[BI]<>//g; @@ -372,4 +413,15 @@ sub add_footnote $sects{FOOTNOTES} .= $_[0]; $sects{FOOTNOTES} .= "\n\n"; } - + +# stolen from Symbol.pm +{ + my $genseq = 0; + sub gensym + { + my $name = "GEN" . $genseq++; + my $ref = \*{$name}; + delete $::{$name}; + return $ref; + } +} |