Annotation of loncom/xml/style.pm, revision 1.13
1.1 sakharuk 1: # The LearningOnline Network with CAPA
1.7 sakharuk 2: # Style Parser Module (new version)
3: #
1.13 ! www 4: # $Id: gplheader.pl,v 1.1 2001/11/29 18:19:27 www Exp $
! 5: #
! 6: # Copyright Michigan State University Board of Trustees
! 7: #
! 8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
! 9: #
! 10: # LON-CAPA is free software; you can redistribute it and/or modify
! 11: # it under the terms of the GNU General Public License as published by
! 12: # the Free Software Foundation; either version 2 of the License, or
! 13: # (at your option) any later version.
! 14: #
! 15: # LON-CAPA is distributed in the hope that it will be useful,
! 16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
! 17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
! 18: # GNU General Public License for more details.
! 19: #
! 20: # You should have received a copy of the GNU General Public License
! 21: # along with LON-CAPA; if not, write to the Free Software
! 22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
! 23: #
! 24: # /home/httpd/html/adm/gpl.txt
! 25: #
! 26: # http://www.lon-capa.org/
! 27: #
! 28: # Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
! 29: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
! 30: # binary executable programs or libraries distributed by the
! 31: # Michigan State University (the "Licensee"), but any binaries so
! 32: # distributed are hereby licensed only for use in the context
! 33: # of a program or computational system for which the Licensee is the
! 34: # primary author or distributor, and which performs substantial
! 35: # additional tasks beyond the translation of (La)TeX into HTML.
! 36: # The C source of the Code may not be distributed by the Licensee
! 37: # to any other parties under any circumstances.
! 38: #
1.7 sakharuk 39: # written 01/08/01 by Alexander Sakharuk
1.1 sakharuk 40: #
41:
1.7 sakharuk 42: package Apache::style;
1.1 sakharuk 43:
44: use strict;
45: use HTML::TokeParser;
46:
47: sub styleparser {
48:
1.7 sakharuk 49: my ($target,$content_style_string) = @_;
50: my $current_key = '';
51: my $current_value = '';
52: my @keys = ();
53: my @values = ();
54: my @style_array = ();
55: my $stoken;
56:
57: my $b_pos;
58: my $e_pos;
59: my $entry;
60:
61: $b_pos = index($content_style_string,'<definetag',0);
62: while ($b_pos != -1) {
63: $e_pos = index($content_style_string,'</definetag',$b_pos);
64: $entry = substr($content_style_string,$b_pos,$e_pos-$b_pos+12);
65: $_ = $entry;
66: m/<definetag\s+name\s*=\s*\"([^\"]*)\"/;
67: $current_key = $1;
68: push @keys,$current_key;
1.8 albertel 69: # &Apache::lonxml::debug("$current_key\n");
1.7 sakharuk 70: my $b_position = index($entry,'<'.$target.'>',0);
71: my $e_position = index($entry,'</'.$target.'>',$b_position);
72: my $target_length = length($target) + 2;
73: if ($b_position > -1) {
74: my $entry_target = substr($entry,$b_position+$target_length,$e_position-$b_position-$target_length);
75: my $pstyle = HTML::TokeParser->new(\$entry_target);
76: while ($stoken = $pstyle->get_token) {
77: if ($stoken->[0] eq 'T') {
78: $current_value .= $stoken->[1];
79: } elsif ($stoken->[0] eq 'S') {
80: my $number = &testkey($stoken->[0],$stoken->[1],@keys);
81: if ($number != -1) {
82: $current_value .= &testvalue($number,$stoken->[0],$stoken->[2],@values);
83: } else {
84: $current_value .= $stoken->[4];
85: }
86: } else {
87: my $number = &testkey($stoken->[0],$stoken->[1],@keys);
88: if ($number != -1) {
89: $current_value .= &testvalue($number,$stoken->[0],$stoken->[2],@values);
1.4 sakharuk 90: } else {
1.7 sakharuk 91: $current_value .= $stoken->[2];
92: }
93: }
94:
95:
96:
97: }
1.4 sakharuk 98: }
1.9 sakharuk 99: $current_value =~ s/\n//g;
1.12 sakharuk 100: ###########
101: # $current_value =~ s/^\s*//g;
102: # $current_value =~ s/\s*$//g;
103: # $current_value =~ s/\( (\w)/($1/g;
104: ###########
1.7 sakharuk 105: push @values,$current_value;
1.8 albertel 106: # &Apache::lonxml::debug("a:$current_value $#values \n");
1.7 sakharuk 107: $current_key = '';
108: $current_value ='';
109: $b_pos = index($content_style_string,'<definetag',$b_pos+1);
110: }
111:
112: for (my $i=0; $i<=$#keys; $i++) {
1.11 sakharuk 113: push @style_array,$keys[$i],$values[$i];
1.7 sakharuk 114: }
1.9 sakharuk 115: my %style_for_target = @style_array;
1.1 sakharuk 116:
1.4 sakharuk 117: # check printing
1.11 sakharuk 118: # foreach $current_key (sort keys %style_for_target) {
119: # &Apache::lonxml::debug("$current_key => $style_for_target{$current_key}\n");
120: # }
1.4 sakharuk 121: # return result
1.1 sakharuk 122: return %style_for_target;
1.7 sakharuk 123:
1.4 sakharuk 124: }
125:
1.7 sakharuk 126: sub testkey {
1.4 sakharuk 127:
1.7 sakharuk 128: my ($zeroth,$first,@keys) = @_;
129: my $number = -1;
130: if ($zeroth eq 'S') {
131: for (my $i=$#keys; $i>=0; $i=$i-1) {
132: if ($first eq lc($keys[$i])) {
133: $number = $i;
134: last;
1.4 sakharuk 135: }
1.7 sakharuk 136: }
137: } elsif ($zeroth eq 'E') {
138: for (my $i=$#keys; $i>=0; $i=$i-1) {
139: if ('/'.$first eq lc($keys[$i])) {
140: $number = $i;
141: last;
1.4 sakharuk 142: }
1.7 sakharuk 143: }
144: }
145: return $number;
146: }
147:
148: sub testvalue {
149:
150: my ($number,$zeroth,$second,@values) = @_;
151: my $current_content = $values[$number];
152: if ($zeroth eq 'S') {
153: my %tempo_hash = %$second;
154: while ((my $current_k,my $current_v) = each %tempo_hash) {
155: $current_content =~ s/\$$current_k/$current_v/g;
156: }
157: } elsif ($zeroth eq 'E') {
158: $current_content = $values[$number];
159: }
160: return $current_content;
1.1 sakharuk 161: }
162:
163: 1;
1.7 sakharuk 164:
1.1 sakharuk 165: __END__
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