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#!/usr/bin/perl -w
# -*- Mode:Perl; tab-width:8; indent-tabs-mode:t -*-
#
# pre-process.pl
# Copyright (C) 1999 by USC/ISI
# All rights reserved.
#
# Redistribution and use in source and binary forms are permitted
# provided that the above copyright notice and this paragraph are
# duplicated in all such forms and that any documentation, advertising
# materials, and other materials related to such distribution and use
# acknowledge that the software was developed by the University of
# Southern California, Information Sciences Institute. The name of the
# University may not be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#
# Contributed by Nader Salehi (USC/ISI), http://www.isi.edu/~salehi
#
die "usage: $0 working-directory\n" if ($#ARGV < 0);
use IO::Handle;
STDOUT->autoflush(1);
foreach (@ARGV) {
if (-d $_) {
do_dir($_);
} elsif (-f $_) {
&pre_process_file($_);
};
};
exit 0;
sub do_dir {
my($dir) = @_;
my($here) = `pwd`; chomp $here;
chdir ($dir) || die "cannot chdir $dir\n";
foreach (<*.tex>) {
&pre_process_file($_);
};
chdir($here);
};
sub rewrite_code_line {
my($s) = @_;
my($qchars) = '{}';
die "need two quote chars\n" if (length($qchars) != 2);
my($dummy1, $qL, $dummy2, $qR) = split(/(.)/, $qchars);
my(@in) = split(/([\\$qchars])/, $s);
my(@out) = ();
my($in_code) = 0;
my($level, $i);
push(@out, '');
for ($level = $i = 0; $i <= $#in; $i++) {
if ($in[$i] eq '') {
# do nothing for nothing
} elsif ($in[$i] eq "\\") {
$out[$#out] .= $in[$i] . $in[$i+1];
$i++; # skip quoted piece
} elsif ($in[$i] eq $qL) {
if ($level == 0) {
if ($out[$#out] =~ s/\\code$//) {
die "$0: nested in-codes on line:\n\t$s\n" if ($in_code);
$in_code = 1;
push(@out, '{\tt ');
} else {
$out[$#out] .= $in[$i];
$in_code = 0;
};
} else {
$out[$#out] .= $in[$i];
};
$level++;
} elsif($in[$i] eq $qR) {
$out[$#out] .= $in[$i];
$level--;
# die "$0: extra right-quotes on line:\n\t$s\n" if ($level < 0);
if ($level == 0 && $in_code) {
$out[$#out] = &code_innards_rewrite($out[$#out]);
push(@out, '');
$in_code = 0;
};
} else {
$out[$#out] .= $in[$i];
};
};
die "$0: unterminated \\code{} on line:\n\t$s\n" if ($in_code);
return join('', @out);
}
sub code_innards_rewrite {
my($c) = @_;
# slashes for these things are optional in code
# first get rid of extra slashes
$c =~ s/(\\[_<>&\$])/$1/g;
# now put them back everywhere consistently
$c =~ s/([_<>&\$])/\\$1/g;
return $c;
}
sub pre_process_file
{
local($filename) = @_;
$program_env = 0;
$change = 0;
print "$filename: ";
open(FILE, "$filename") || die "Cannot open $filename: $_";
$outFile = "$filename.new";
open(OUTFILE, ">$outFile") || die "Cannot create temp file $_";
while (<FILE>) {
if (/\\begin\s*{(program)}/) {
$program_env = 1;
$change = 1;
s/$1/verbatim/g;
};
if ($program_env == 1) {
s/\\;/\#/g;
s/{\s*\\cf\s*(\#?.*)}/$1/g;
s/\\([{|}])/$1/g;
s/\\\*(.*)\*\//\/\*$1\//g;
s/([<>_\$])/\\$1/g;
if (/\\end\s*{(program)}/) {
$program_env = 0;
s/$1/verbatim/g;
};
};
# Code is tricky because we have trouble matching paired {}'s
if (/\\code\{/) {
$_ = rewrite_code_line($_);
};
# can't read the alist in nsdoc.sty
s/\{alist\}/\{\\par\\tabular{\\textwidth}{rX}\}/g;
# latex2html does not read \def macros; therefore, we must
# remap them here to normal latex commands
s/\\nsf/\\textasciitilde\\emph{ns}\//g;
s/\\ns/\\emph{ns}/g;
s/\\namf/\\textasciitilde\\emph{nam}\//g;
s/\\nam/\\emph{nam}/g;
s/\\Tclf/\\textasciitilde\\emph{tclcl}\//g;
s/\\nsTcl/\\emph{ns\/tclcl}/g;
s/\\rtglib/\\textsl{rtglib}/g;
# nader's old code handling:
# s/\\code{([^\$}]*)}/{\\ss $1}/g && ($change = 1);
# s/\\code{\s*\$([^}]*)}/{\\em $1}/g && ($change = 1);
# s/\\code{[^\w]*([^\$]*)([^}]*)}/{\\ss $1 $2}/g && s/\$/\\\$/g && ($change = 1);
# s/\\proc\[\]{([^}]*)}/{\\ss $1 }/g && ($change = 1);
print OUTFILE unless (/^%/);
};
close(OUTFILE);
close(FILE);
if ($change == 1) {
print " ALTERED\n";
rename($filename, "$filename.org");
rename($outFile, $filename);
} else {
print " unchanged\n";
unlink($outFile);
};
}
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