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|
#!/usr/bin/perl
#---------------------------------------------------------
# infocat
#---------------------------------------------------------
#
# PURPOSE
# This perl script prints a catalog of the info files
# available via info2html at this site.
#
# AUTHORS
# 2015.12.25 +A.M.Danischewski <adam_ lastname@not gamil.com>
# 2006.08.16 Sean M. Burke <sburke@cpan.org>
#
# ORIGINAL AUTHOR
# 1997.05.16 Jon Howell <jonh@cs.dartmouth.edu>
#
# HISTORY
# 1997.05.16 V 1.0
# 1998.05.05 V 1.2 became part of info2html distribution
# Jon Howell <jonh@cs.dartmouth.edu>
# 2006-08-16 V 2.0 The sorting routines are more complex now,
# in an effort to produce more concise output.
# Also: CSS added, HTML modernized a bit.
# Sean M. Burke <sburke@cpan.org>
# 2015-12-25 V 2.1 Hacked into a quasi PHP-CGI, removed
# the manual configuration of the conf file,
# presumes the conf file is in the same dir,
# removed the CGI header and warnings.
# +A.M.Danischewski <adam_ lastname@not gamil.com>
#
#-------------------------------------------------------
$VERSION = "2.1";
use File::Basename;
$CURRENT_PATH=dirname(__FILE__);
## If you really want your config file in a custom location,
## (e.g. ~/.config) then change this next variable accordingly.
$INFO2HTMLCONF = $CURRENT_PATH."/info2html.conf";
require 5;
require($INFO2HTMLCONF); #-- configuration settings
use CGI;
#-- patterns
$NODEBORDER = '\037\014?'; #-- delimiter of an info node
$REDIRSEP = '\177'; #-- delimiter in tag tables
$WS = '[ \t]+'; #-- white space +
$WSS = '[ \t]*'; #-- white space *
$TE = '[\t\,\.\n]'; #-- end of a tag
$TAG = '[^\t\,\.\n]+'; #-- pattern for a tag
$FTAG = '[^\)]+'; #-- pattern for a file name in
#-- a cross reference
#---------------------------------------------------------
# Escape
#---------------------------------------------------------
# This procedures escapes some special characeters. The
# escape sequence follows the WWW guide for escaped
# characters in URLs
#---------------------------------------------------------
sub Escape{
local($Tag) = @_;
#-- escaping is not needed anymore KG/28.6.94
# $Tag =~ s/ /%20/g; # space
# $Tag =~ s/\+/%AB/g; # +
#-- oh yes it is -- jonh 5/16/97
#$Tag;
return CGI::escape($Tag);
}
#----------------------------------------------------------
# DeEscape
#----------------------------------------------------------
sub DeEscape{
local($Tag) = @_;
#-- deescaping is not needed anymore. KG/28.6.94
#$Tag =~ s/%AB/+/g;
#$Tag =~ s/%20/ /g;
#-- yes it is jonh 5/16/97
#$Tag;
return CGI::unescape($Tag);
}
#
#------------------- MAIN -----------------------------
#
### No more need for CGI headers, we are using PHP
### V 2.1 Change +A.M.Danischewski 20151225
#print CGI::header('-type'=>'text/html',
#'-expires'=>60*60*24);
## expires each day, in case I add new .info files
## to the @INFODIR path.
# -- jonh 1998.05.04
print "<html><title>Info2HTML Catalog</title>\n";
print "$HTML_HEAD_STUFF</head><body class='infocat'>\n";
my( %Desc2BaseExt, %BaseFreq, %BaseExt2Base );
foreach $dir (@INFODIR) {
opendir(DIR, $dir) or next;
while ($baseext = readdir(DIR)) {
next if $infofile eq '.' or $infofile eq '..';
my $base;
if ($baseext =~ m/^(.+)\.info\.bz2$/ ) {
$base = $1;
next unless open INFOFILE, "bzcat $dir/$baseext|";
$collect = 0;
}
elsif ($baseext =~ m/^(.+)\.info\.gz$/ ) {
$base = $1;
next unless open INFOFILE, "gzip -dc $dir/$baseext|";
$collect = 0;
}
elsif ($baseext =~ m/^(.+)\.info$/) {
$base = $1;
next unless open INFOFILE, $dir."/".$baseext;
$collect = 0;
}
else {
next;
}
$filedesc = "";
$BaseFreq{$base}++;
$BaseExt2Base{$baseext} = $base;
while (<INFOFILE>) {
last if (m/END-INFO-DIR-ENTRY/);
# featurebug: we read only the first dirblock
s/^\* //;
if ($collect and not ($_ =~ m/^[\s\n]*$/)) {
$filedesc .= "<br>" if ($collect < 4);
$filedesc .= $_;
--$collect;
$filedesc .= " <b class='elided'>...</b>\n" unless $collect;
}
$collect=4 if (m/START-INFO-DIR-ENTRY/);
# 4 = max number of entries per file that we show
}
close INFOFILE;
$Desc2BaseExt{ $filedesc || $baseext } = $baseext;
}
closedir(DIR);
}
print "<h2>GNU info on the following topics is available here:</h2>\n";
print "<ul>\n";
# Now output the list, cleverly sorting and linking...
foreach my $desc (sort { lc($a) cmp lc($b) } keys %Desc2BaseExt) {
my $baseext = $Desc2BaseExt{$desc};
my $base = $BaseExt2Base{$baseext};
my $thisdesc = $desc;
my $fn = $baseext;
if( $BaseFreq{$base} == 1 ) { # the common case: we get to be terse
$fn = $base;
if( $thisdesc =~ m{^([^ :]+):\s+\(([^ :\(\)]+)\)\.?}s
# Like: "crunkapalooza: (crunkapalooza). Crunkulate things!"
and lc($2) eq lc($base) and lc($2) eq lc($1)
) {
# a common subcase: the first line is pointlessly verbose, so trim:
$thisdesc =~ s{^([^ :]+):\s+\(([^ :\(\)]+)\)\.?}{$1: }s;
} else {
$thisdesc = $base if $thisdesc eq $baseext;
}
}
print "<li class='infocatline'><a href=\"info2html?($fn)Top\">",
$thisdesc, "</a>\n" ;
}
print "</ul>\n", <<"EOF";
\n<div class='generator'>
<hr>
<em>automatically generated by </em>
<a href="$DOC_URL">info2html v$VERSION</a>
</div></body></html>
EOF
|
