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authorMartin Mares <mj@ucw.cz>2000-05-31 16:27:49 +0200
committerMartin Mares <mj@ucw.cz>2000-05-31 16:27:49 +0200
commit1c1f1b6c0a9012aaf0d3b94275895cb87b5ff695 (patch)
tree3720cbf8d2a6ae72904cf749264721b5df63dc3a /doc/sbase/dist/fmt_txt.pl
parent1885aa8ce33e6617d45dbc2f5ee2852bf5f72e88 (diff)
downloadbird-1c1f1b6c0a9012aaf0d3b94275895cb87b5ff695.tar
bird-1c1f1b6c0a9012aaf0d3b94275895cb87b5ff695.zip
This should be enough from the SGMLtools distribution to make the
SGMLtools happy. The only symlink you need now is dist/birddoc -> dist/sgmltool. I'm convinced it could be avoided by renaming the directory instead, but I'd rather avoid it due to CVS pecularities.
Diffstat (limited to 'doc/sbase/dist/fmt_txt.pl')
-rw-r--r--doc/sbase/dist/fmt_txt.pl287
1 files changed, 287 insertions, 0 deletions
diff --git a/doc/sbase/dist/fmt_txt.pl b/doc/sbase/dist/fmt_txt.pl
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+#
+# fmt_txt.pl
+#
+# $Id$
+#
+# TXT-specific driver stuff
+#
+# © Copyright 1996, Cees de Groot
+#
+package SGMLTools::fmt_txt;
+use strict;
+
+use File::Copy;
+use Text::EntityMap;
+use SGMLTools::CharEnts;
+use SGMLTools::Lang;
+use SGMLTools::Vars;
+
+my $txt = {};
+$txt->{NAME} = "txt";
+$txt->{HELP} = "";
+$txt->{OPTIONS} = [
+ { option => "manpage", type => "f", short => "m" },
+ { option => "filter", type => "f", short => "f" }
+];
+$txt->{manpage} = 0;
+$txt->{filter} = 0;
+
+$Formats{$txt->{NAME}} = $txt;
+
+#
+# Set correct NsgmlsOpts
+#
+$txt->{preNSGMLS} = sub
+{
+ if ($txt->{manpage})
+ {
+ $global->{NsgmlsOpts} .= " -iman ";
+ $global->{charset} = "man";
+ }
+ else
+ {
+ $global->{NsgmlsOpts} .= " -ifmttxt ";
+ $global->{charset} = "latin1" if $global->{charset} eq "latin";
+ }
+
+ #
+ # Is there a cleaner solution than this? Can't do it earlier,
+ # would show up in the help messages...
+ #
+ $global->{format} = $global->{charset};
+ $global->{format} = "groff" if $global->{format} eq "ascii";
+ $ENV{SGML_SEARCH_PATH} =~ s/txt/$global->{format}/;
+
+ $Formats{"groff"} = $txt;
+ $Formats{"latin1"} = $txt;
+ $Formats{"man"} = $txt;
+
+ return 0;
+};
+
+
+# Ascii escape sub. this is called-back by `parse_data' below in
+# `txt_preASP' to properly escape `\' characters coming from the SGML
+# source.
+my $txt_escape = sub {
+ my ($data) = @_;
+
+ $data =~ s|"|\\\&\"|g; # Insert zero-width space in front of "
+ $data =~ s|^\.|\\&.|; # ditto in front of . at start of line
+ $data =~ s|\\|\\\\|g; # Escape backslashes
+
+ return ($data);
+};
+
+#
+# Run the file through the genertoc utility before sgmlsasp. Not necessary
+# when producing a manpage. A lot of code from FJM, untested by me.
+#
+$txt->{preASP} = sub
+{
+ my ($infile, $outfile) = @_;
+ my (@toc, @lines);
+ if ($txt->{manpage})
+ {
+ copy ($infile, $outfile);
+ return;
+ }
+
+ # note the conversion of `sdata_dirs' list to an anonymous array to
+ # make a single argument
+ my $char_maps = load_char_maps ('.2tr', [ Text::EntityMap::sdata_dirs() ]);
+ $char_maps = load_char_maps ('.2l1tr', [ Text::EntityMap::sdata_dirs() ]) if $global->{charset} eq "latin1";
+
+ #
+ # Build TOC. The file is read into @lines in the meantime, we need to
+ # traverse it twice.
+ #
+ push (@toc, "(HLINE\n");
+ push (@toc, ")HLINE\n");
+ push (@toc, "(P\n");
+ push (@toc, "-" . Xlat ("Table of Contents") . "\n");
+ push (@toc, ")P\n");
+ push (@toc, "(VERB\n");
+ my (@prevheader, @header);
+ while (<$infile>)
+ {
+ push (@lines, $_);
+
+ if (/^\(SECT(.*)/)
+ {
+ @prevheader = @header;
+ @header = @header[0..$1];
+ $header[$1]++;
+ }
+ if (/^\(HEADING/)
+ {
+ $_ = <$infile>;
+ push (@lines, $_);
+ chop;
+ s/^-//;
+ $_ = join(".",@header) . " " . $_;
+ s/\\n/ /g;
+ s/\(\\[0-9][0-9][0-9]\)/\\\1/g;
+
+ if (!$#header)
+ {
+ # put a newline before top-level sections unless previous was also
+ # a top level section
+ $_ = "\\n" . $_ unless (!$#prevheader);
+ # put a . and a space after top level sections
+ s/ /. /;
+ $_ = "-" . $_ . "\\n";
+ }
+ else
+ {
+ # subsections get indentation matching hierarchy
+ $_ = "-" . " " x $#header . $_;
+ }
+ push(@toc, parse_data ($_, $char_maps, $txt_escape), "\\n\n");
+ }
+ }
+ push (@toc, ")VERB\n");
+ push (@toc, "(HLINE\n");
+ push (@toc, ")HLINE\n");
+
+ my $inheading = 0;
+ my $tipo = '';
+ for (@lines)
+ {
+ if ($inheading)
+ {
+ next if (/^\)TT/ || /^\(TT/ || /^\)IT/ || /^\(IT/ ||
+ /^\)EM/ || /^\(EM/ || /^\)BF/ || /^\(BF/);
+ if (/^-/)
+ {
+ $tipo .= $' ;
+ chop ($tipo);
+ $tipo .= " " unless $tipo =~ / $/;
+ }
+ else
+ {
+ $tipo =~ s/ $//;
+ if ($tipo)
+ {
+ print $outfile "-"
+ . parse_data ($tipo, $char_maps, $txt_escape)
+ . "\n";
+ }
+ print $outfile $_;
+ $tipo = '';
+ }
+ if (/^\)HEADING/)
+ {
+ $inheading = 0;
+ }
+ next;
+ }
+ if (/^\(HEADING/)
+ {
+ #
+ # Go into heading processing mode.
+ #
+ $tipo = '';
+ $inheading = 1;
+ }
+ if (/^\(TOC/)
+ {
+ print $outfile @toc;
+ next;
+ }
+ if (/^-/)
+ {
+ my ($str) = $';
+ chop ($str);
+ print $outfile "-" . parse_data ($str, $char_maps, $txt_escape) . "\n";
+ next;
+ }
+ elsif (/^A/)
+ {
+ /^A(\S+) (IMPLIED|CDATA|NOTATION|ENTITY|TOKEN)( (.*))?$/
+ || die "bad attribute data: $_\n";
+ my ($name,$type,$value) = ($1,$2,$4);
+ if ($type eq "CDATA")
+ {
+ # CDATA attributes get translated also
+ $value = parse_data ($value, $char_maps, $txt_escape);
+ }
+ print $outfile "A$name $type $value\n";
+ next;
+ }
+
+ #
+ # Default action if not skipped over with next: copy in to out.
+ #
+ print $outfile $_;
+ }
+};
+
+
+#
+# Take the sgmlsasp output, and make something
+# useful from it.
+#
+$txt->{postASP} = sub
+{
+ my $infile = shift;
+ my ($outfile, $groffout);
+
+ if ($txt->{manpage})
+ {
+ $outfile = new FileHandle ">$global->{filename}.man";
+ }
+ else
+ {
+ $outfile = new FileHandle
+ "|$main::progs->{GROFF} -T $global->{pass} $global->{charset} -t $main::progs->{GROFFMACRO} >$global->{tmpbase}.txt.1";
+ }
+
+ #
+ # Feed $outfile with roff input.
+ #
+ while (<$infile>)
+ {
+ unless (/^\.DS/.../^\.DE/)
+ {
+ s/^[ \t]{1,}(.*)/$1/g;
+ }
+ s/^\.[ \t].*/\\\&$&/g;
+ s/\\fC/\\fR/g;
+ s/^.ft C/.ft R/g;
+ print $outfile $_;
+ }
+ $outfile->close;
+
+ #
+ # If we were making a manpage, we're done. Otherwise, a little bit
+ # of work is left.
+ #
+ if ($txt->{manpage})
+ {
+ return 0;
+ }
+ else
+ {
+ $outfile->open (">$global->{filename}.txt");
+ $groffout = new FileHandle "<$global->{tmpbase}.txt.1";
+ if ($txt->{filter})
+ {
+ while (<$groffout>)
+ {
+ s/.//g;
+ print $outfile $_;
+ }
+ }
+ else
+ {
+ copy ($groffout, $outfile);
+ }
+ }
+ $groffout->close;
+ $outfile->close;
+
+ return 0;
+};
+
+1;