diff options
Diffstat (limited to 'etc/texi2pod.pl')
| -rw-r--r-- | etc/texi2pod.pl | 168 |
1 files changed, 50 insertions, 118 deletions
diff --git a/etc/texi2pod.pl b/etc/texi2pod.pl index 9696a12..e6ad9f9 100644 --- a/etc/texi2pod.pl +++ b/etc/texi2pod.pl @@ -1,23 +1,23 @@ #! /usr/bin/perl -w -# Copyright (C) 1999, 2000, 2001, 2003 Free Software Foundation, Inc. +# Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. -# This file is part of GCC. +# This file is part of GNU CC. -# GCC is free software; you can redistribute it and/or modify +# GNU CC is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. -# GCC is distributed in the hope that it will be useful, +# GNU CC is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License -# along with GCC; see the file COPYING. If not, write to -# the Free Software Foundation, 51 Franklin Street, Fifth Floor, -# Boston MA 02110-1301, USA. +# along with GNU CC; see the file COPYING. If not, write to +# the Free Software Foundation, 59 Temple Place - Suite 330, +# Boston MA 02111-1307, USA. # This does trivial (and I mean _trivial_) conversion of Texinfo # markup to Perl POD format. It's intended to be used to extract @@ -30,12 +30,9 @@ $section = ""; @icstack = (); @endwstack = (); @skstack = (); -@instack = (); $shift = ""; %defs = (); $fnno = 1; -$inf = ""; -$ibase = ""; while ($_ = shift) { if (/^-D(.*)$/) { @@ -44,13 +41,15 @@ while ($_ = shift) { } else { $flag = shift; } - $value = ""; - ($flag, $value) = ($flag =~ /^([^=]+)(?:=(.+))?/); + $value=$flag; + $value =~ s,^[a-zA-Z0-9_]+,,; + $value =~ s,.*=,,; + $flag =~ s,=.*$,,; die "no flag specified for -D\n" unless $flag ne ""; - die "flags may only contain letters, digits, hyphens, dashes and underscores\n" - unless $flag =~ /^[a-zA-Z0-9_-]+$/; + #print STDERR "FL = $flag, V = $value\n"; $defs{$flag} = $value; + } elsif (/^-/) { usage(); } else { @@ -61,19 +60,14 @@ while ($_ = shift) { } if (defined $in) { - $inf = gensym(); - open($inf, "<$in") or die "opening \"$in\": $!\n"; - $ibase = $1 if $in =~ m|^(.+)/[^/]+$|; -} else { - $inf = \*STDIN; + open(STDIN, $in) or die "opening \"$in\": $!\n"; } - if (defined $out) { open(STDOUT, ">$out") or die "opening \"$out\": $!\n"; } -while(defined $inf) { -while(<$inf>) { +while(<STDIN>) +{ # Certain commands are discarded without further processing. /^\@(?: [a-z]+index # @*index: useful only in complete manual @@ -81,9 +75,8 @@ while(<$inf>) { |(?:end\s+)?group # @group .. @end group: ditto |page # @page: ditto |node # @node: useful only in .info file - |(?:end\s+)?ifnottex # @ifnottex .. @end ifnottex: use contents )\b/x and next; - + chomp; # Look for filename and title markers. @@ -91,7 +84,7 @@ while(<$inf>) { /^\@settitle\s+([^.]+)/ and $tl = postprocess($1), next; # Identify a man title but keep only the one we are interested in. - /^\@c\s+man\s+title\s+([A-Za-z0-9-]+)\s+(.+)/ and do { + /^\@c man title ([A-Za-z0-9]+) (.+)/ and do { if (exists $defs{$1}) { $fn = $1; $tl = postprocess($2); @@ -102,30 +95,19 @@ while(<$inf>) { # 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\s+man\s+begin\s+([A-Z]+)\s+([A-Za-z0-9-]+)/ and do { + /^\@c man begin ([A-Z]+) ([A-Za-z0-9]+)/ and do { $output = 1 if exists $defs{$2}; $sect = $1; next; }; - /^\@c\s+man\s+begin\s+([A-Z]+)/ and $sect = $1, $output = 1, next; - /^\@c\s+man\s+end/ and do { + /^\@c man begin ([A-Z]+)/ and $sect = $1, $output = 1, next; + /^\@c man 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 $output; # Discard comments. (Can't do it above, because then we'd never see @@ -138,20 +120,20 @@ while(<$inf>) { # 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 && $ended !~ /^(?:ifset|ifclear|ignore|menu|iftex|copying)$/; + next if $skipping && $ended !~ /^(?:ifset|ifclear|ignore|menu)$/; 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|iftex)$/) { + if ($ended =~ /^(?:ifset|ifclear|ignore|menu)$/) { $skipping = pop @skstack; next; - } elsif ($ended =~ /^(?:example|smallexample|display)$/) { + } elsif ($ended =~ /^(?:example|smallexample)$/) { $shift = ""; $_ = ""; # need a paragraph break - } elsif ($ended =~ /^(?:itemize|enumerate|[fv]?table)$/) { + } elsif ($ended =~ /^(?:itemize|enumerate|table)$/) { $_ = "\n=back\n"; $ic = pop @icstack; } else { @@ -178,7 +160,7 @@ while(<$inf>) { next; }; - /^\@(ignore|menu|iftex|copying)\b/ and do { + /^\@(ignore|menu)\b/ and do { push @endwstack, $endw; push @skstack, $skipping; $endw = $1; @@ -207,12 +189,6 @@ while(<$inf>) { 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; @@ -223,38 +199,22 @@ while(<$inf>) { } # Single line command handlers. + /^\@set\s+([a-zA-Z0-9_-]+)\s*(.*)$/ and $defs{$1} = $2, next; + /^\@clear\s+([a-zA-Z0-9_-]+)/ and delete $defs{$1}, next; - /^\@include\s+(.+)$/ and do { - push @instack, $inf; - $inf = gensym(); - $file = postprocess($1); - - # Try cwd and $ibase. - open($inf, "<" . $file) - or open($inf, "<" . $ibase . "/" . $file) - or die "cannot open $file or $ibase/$file: $!\n"; - next; - }; - - /^\@(?:section|unnumbered|unnumberedsec|center)\s+(.+)$/ - and $_ = "\n=head2 $1\n"; - /^\@subsection\s+(.+)$/ - and $_ = "\n=head3 $1\n"; + /^\@section\s+(.+)$/ and $_ = "\n=head2 $1\n"; + /^\@subsection\s+(.+)$/ and $_ = "\n=head3 $1\n"; # Block command handlers: - /^\@itemize(?:\s+(\@[a-z]+|\*|-))?/ and do { + /^\@itemize\s+(\@[a-z]+|\*|-)/ and do { push @endwstack, $endw; push @icstack, $ic; - if (defined $1) { - $ic = $1; - } else { - $ic = '@bullet'; - } + $ic = $1; $_ = "\n=over 4\n"; $endw = "itemize"; }; - /^\@enumerate(?:\s+([a-zA-Z0-9]+))?/ and do { + /^\@enumerate(?:\s+([A-Z0-9]+))?/ and do { push @endwstack, $endw; push @icstack, $ic; if (defined $1) { @@ -266,19 +226,19 @@ while(<$inf>) { $endw = "enumerate"; }; - /^\@([fv]?table)\s+(\@[a-z]+)/ and do { + /^\@table\s+(\@[a-z]+)/ and do { push @endwstack, $endw; push @icstack, $ic; - $endw = $1; - $ic = $2; + $ic = $1; $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|display)/ and do { + /^\@((?:small)?example)/ and do { push @endwstack, $endw; $endw = $1; $shift = "\t"; @@ -291,17 +251,12 @@ while(<$inf>) { $_ = "\n=item $ic\<$1\>\n"; } else { $_ = "\n=item $ic\n"; - $ic =~ y/A-Ya-y/B-Zb-z/; - $ic =~ s/(\d+)/$1 + 1/eg; + $ic =~ y/A-Ya-y1-8/B-Zb-z2-9/; } }; $section .= $shift.$_."\n"; } -# End of current file. -close($inf); -$inf = pop @instack; -} die "No filename or title\n" unless defined $fn && defined $tl; @@ -329,15 +284,13 @@ sub postprocess local $_ = $_[0]; # @value{foo} is replaced by whatever 'foo' is defined as. - 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/; + if (/\@value\{([a-zA-Z0-9_-]+)\}/) { + if (! exists $defs{$1}) { + print STDERR "Option $1 not define\n"; } + } + s/\@value\{([a-zA-Z0-9_-]+)\}/$defs{$1}/g; # Formatting commands. # Temporary escape for @r. @@ -350,12 +303,8 @@ sub postprocess s/\@w\{([^\}]*)\}/S<$1>/g; s/\@(?:dmn|math)\{([^\}]*)\}/$1/g; - # keep references of the form @ref{...}, print them bold - s/\@(?:ref)\{([^\}]*)\}/B<$1>/g; - - # Change double single quotes to double quotes. - s/''/"/g; - s/``/"/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.) @@ -377,18 +326,12 @@ sub postprocess s/\@uref\{([^\},]*),([^\},]*)\}/$2 (C<$1>)/g; s/\@uref\{([^\},]*),([^\},]*),([^\},]*)\}/$3/g; - # Un-escape <> at this point. + # Turn B<blah I<blah> blah> into B<blah> I<blah> B<blah> to + # match Texinfo semantics of @emph inside @samp. s/</</g; s/>/>/g; - - # Now un-nest all B<>, I<>, R<>. Theoretically we could have - # indefinitely deep nesting; in practice, one level suffices. - 1 while s/([BIR])<([^<>]*)([BIR])<([^<>]*)>/$1<$2>$3<$4>$1</g; - - # Replace R<...> with bare ...; eliminate empty markup, B<>; - # shift white space at the ends of [BI]<...> expressions outside - # the expression. - s/R<([^<>]*)>/$1/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; s/([BI])<(\s+)([^>]+)>/$2$1<$3>/g; s/([BI])<([^>]+?)(\s+)>/$1<$2>$3/g; @@ -429,15 +372,4 @@ 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; - } -} + |