proof of concept implementation of scripts highlighting, grafite.hrc is still bugged

[helm.git] / helm / www / matita / cgi-bin / hl.cgi

diff --git a/helm/www/matita/cgi-bin/hl.cgi b/helm/www/matita/cgi-bin/hl.cgi
new file mode 100755 (executable)
index 0000000..25e7bcf
--- /dev/null
+++ b/helm/www/matita/cgi-bin/hl.cgi
@@ -0,0 +1,74 @@
+#!/usr/bin/perl -w
+use strict;
+
+# Copyright (C) 2006, HELM Team.
+#
+# This file is part of HELM, an Hypertextual, Electronic
+# Library of Mathematics, developed at the Computer Science
+# Department, University of Bologna, Italy.
+#
+# HELM 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
+# of the License, or (at your option) any later version.
+#
+# HELM 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 HELM; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+# MA  02111-1307, USA.
+#
+# For details, see the HELM World-Wide-Web page,
+# http://helm.cs.unibo.it/
+
+use CGI;
+use Syntax::Highlight::Universal;
+
+# Configuration
+
+my $documentroot = '/projects/matita/public_html/';
+my $protohrc = $documentroot . 'helm-proto.hrc';
+my $scriptsdir = $documentroot . 'library/';
+my $hlformat = "grafite";
+
+# Code
+  
+my $query = CGI->new;                      # used globally by some 'sub' below
+print $query->header, $query->start_html;
+
+sub die_invalid_file() {
+  print 'Invalid script.';
+  print $query->end_html;
+  exit 0;
+}
+
+sub lookup_script($) {
+  my ($f) = @_;
+  die_invalid_file() unless $f =~ /^(.*)(\.ma)$/;
+  my $base = $1;
+  die_invalid_file() unless $base =~ /[-a-zA-Z_]+(\/[-a-zA-Z_])*/;
+  my $path = $scriptsdir . $f;
+  die_invalid_file() unless -f $path;
+  return $path;
+}
+
+my $fname = $query->param('f');
+
+my $highlighter = Syntax::Highlight::Universal->new;
+$highlighter->addConfig($protohrc);
+
+my $script = lookup_script($fname);
+open SCRIPT, "< $script" or die "Can't open Matita script \"$script\"\n";
+my @lines = <SCRIPT>;
+my $text = join "", @lines;
+close SCRIPT;
+
+my $result = $highlighter->highlight($hlformat, $text);
+print $result;
+
+print $query->end_html;
+