1 package SL::Template::LaTeX;
3 use parent qw(SL::Template::Simple);
8 use Unicode::Normalize qw();
13 my $self = $type->SUPER::new(@_);
19 my ($self, $variable) = @_;
20 my $form = $self->{"form"};
22 $variable = $main::locale->quote_special_chars('Template/LaTeX', $variable);
24 # Allow some HTML markup to be converted into the output format's
25 # corresponding markup code, e.g. bold or italic.
26 my %markup_replace = ('b' => 'textbf',
30 foreach my $key (keys(%markup_replace)) {
31 my $new = $markup_replace{$key};
32 $variable =~ s/\$\<\$${key}\$\>\$(.*?)\$<\$\/${key}\$>\$/\\${new}\{$1\}/gi;
35 $variable =~ s/[\x00-\x1f]//g;
41 my ($self, $var, $text, $start_tag, $end_tag, @indices) = @_;
43 my ($form, $new_contents) = ($self->{"form"}, "");
45 my $ary = $self->_get_loop_variable($var, 1, @indices);
49 my ($current_line, $corrent_row) = (0, 1);
50 my $description_array = $self->_get_loop_variable("description", 1);
51 my $longdescription_array = $self->_get_loop_variable("longdescription", 1);
52 my $linetotal_array = $self->_get_loop_variable("linetotal", 1);
54 $form->{TEMPLATE_ARRAYS}->{cumulatelinetotal} = [];
56 # forech block hasn't given us an array. ignore
57 return $new_contents unless ref $ary eq 'ARRAY';
59 for (my $i = 0; $i < scalar(@{$ary}); $i++) {
61 $form->{"__first__"} = $i == 0;
62 $form->{"__last__"} = ($i + 1) == scalar(@{$ary});
63 $form->{"__odd__"} = (($i + 1) % 2) == 1;
64 $form->{"__counter__"} = $i + 1;
66 if ( ref $linetotal_array eq 'ARRAY'
67 && $i < scalar(@{$linetotal_array})) {
68 $sum += $form->parse_amount($self->{"myconfig"}, $linetotal_array->[$i]);
71 $form->{TEMPLATE_ARRAYS}->{cumulatelinetotal}->[$i] = $form->format_amount($self->{"myconfig"}, $sum, 2);
73 my $new_text = $self->parse_block($text, (@indices, $i));
74 return undef unless (defined($new_text));
75 $new_contents .= $start_tag . $new_text . $end_tag;
77 map({ delete($form->{"__${_}__"}); } qw(first last odd counter));
83 my ($self, $text, $pos, $var, $not) = @_;
85 my $tag_start_len = length $self->{tag_start};
88 $pos = 0 unless ($pos);
90 while ($pos < length($text)) {
93 next if (substr($text, $pos - 1, length($self->{tag_start})) ne $self->{tag_start});
95 my $keyword_pos = $pos - 1 + $tag_start_len;
97 if ((substr($text, $keyword_pos, 2) eq 'if') || (substr($text, $keyword_pos, 7) eq 'foreach')) {
100 } elsif ((substr($text, $keyword_pos, 4) eq 'else') && (1 == $depth)) {
103 "$self->{tag_start}else$self->{tag_end} outside of "
104 . "$self->{tag_start}if$self->{tag_end} / "
105 . "$self->{tag_start}ifnot$self->{tag_end}.";
109 my $block = substr($text, 0, $pos - 1);
110 substr($text, 0, $pos - 1) = "";
111 $text =~ s!^$self->{tag_start_qm}.+?$self->{tag_end_qm}!!;
112 $text = $self->{tag_start} . 'if' . ($not ? " " : "not ") . $var . $self->{tag_end} . $text;
114 return ($block, $text);
116 } elsif (substr($text, $keyword_pos, 3) eq 'end') {
119 my $block = substr($text, 0, $pos - 1);
120 substr($text, 0, $pos - 1) = "";
121 $text =~ s!^$self->{tag_start_qm}.+?$self->{tag_end_qm}!!;
123 return ($block, $text);
132 $main::lxdebug->enter_sub();
134 my ($self, $contents, @indices) = @_;
136 my $new_contents = "";
138 while ($contents ne "") {
139 my $pos_if = index($contents, $self->{tag_start} . 'if');
140 my $pos_foreach = index($contents, $self->{tag_start} . 'foreach');
142 if ((-1 == $pos_if) && (-1 == $pos_foreach)) {
143 $new_contents .= $self->substitute_vars($contents, @indices);
147 if ((-1 == $pos_if) || ((-1 != $pos_foreach) && ($pos_if > $pos_foreach))) {
148 $new_contents .= $self->substitute_vars(substr($contents, 0, $pos_foreach), @indices);
149 substr($contents, 0, $pos_foreach) = "";
151 if ($contents !~ m|^$self->{tag_start_qm}foreach (.+?)$self->{tag_end_qm}|) {
152 $self->{"error"} = "Malformed $self->{tag_start}foreach$self->{tag_end}.";
153 $main::lxdebug->leave_sub();
159 substr($contents, 0, length($&)) = "";
162 ($block, $contents) = $self->find_end($contents);
164 $self->{"error"} = "Unclosed $self->{tag_start}foreach$self->{tag_end}." unless ($self->{"error"});
165 $main::lxdebug->leave_sub();
169 my $new_text = $self->parse_foreach($var, $block, "", "", @indices);
170 if (!defined($new_text)) {
171 $main::lxdebug->leave_sub();
174 $new_contents .= $new_text;
177 if (!$self->_parse_block_if(\$contents, \$new_contents, $pos_if, @indices)) {
178 $main::lxdebug->leave_sub();
184 $main::lxdebug->leave_sub();
186 return $new_contents;
189 sub parse_first_line {
191 my $line = shift || "";
193 if ($line =~ m/([^\s]+)set-tag-style([^\s]+)/) {
195 $self->{error} = "The tag start and end markers must not be equal.";
199 $self->set_tag_style($1, $2);
205 sub _parse_config_option {
212 my ($key, $value) = split m/\s*=\s*/, $line, 2;
214 if ($key eq 'tag-style') {
215 $self->set_tag_style(split(m/\s+/, $value, 2));
219 sub _parse_config_lines {
223 my ($comment_start, $comment_end) = ("", "");
225 if (ref $self eq 'SL::Template::LaTeX') {
226 $comment_start = '\s*%';
227 } elsif (ref $self eq 'SL::Template::HTML') {
228 $comment_start = '\s*<!--';
229 $comment_end = '(?:--)?>\s*';
231 $comment_start = '\s*\#';
234 my $num_lines = scalar @{ $lines };
237 while ($i < $num_lines) {
238 my $line = $lines->[$i];
240 if ($line !~ m/^${comment_start}\s*config\s*:(.*?)${comment_end}$/i) {
245 $self->_parse_config_option($1);
246 splice @{ $lines }, $i, 1;
251 sub _force_mandatory_packages {
255 my (%used_packages, $document_start_line, $last_usepackage_line);
257 foreach my $i (0 .. scalar @{ $lines } - 1) {
258 if ($lines->[$i] =~ m/\\usepackage[^\{]*{(.*?)}/) {
259 $used_packages{$1} = 1;
260 $last_usepackage_line = $i;
262 } elsif ($lines->[$i] =~ m/\\begin{document}/) {
263 $document_start_line = $i;
269 my $insertion_point = defined($document_start_line) ? $document_start_line
270 : defined($last_usepackage_line) ? $last_usepackage_line
271 : scalar @{ $lines } - 1;
273 foreach my $package (qw(textcomp)) {
274 next if $used_packages{$package};
275 splice @{ $lines }, $insertion_point, 0, "\\usepackage{${package}}\n";
283 my $form = $self->{"form"};
285 if (!open(IN, "$form->{templates}/$form->{IN}")) {
286 $self->{"error"} = "$!";
289 binmode IN, ":utf8" if $::locale->is_utf8;
293 $self->_parse_config_lines(\@lines);
294 $self->_force_mandatory_packages(\@lines) if (ref $self eq 'SL::Template::LaTeX');
296 my $contents = join("", @lines);
298 my $new_contents = $self->parse_block($contents);
299 if (!defined($new_contents)) {
300 $main::lxdebug->leave_sub();
304 if ($::locale->is_utf8) {
305 binmode OUT, ":utf8";
306 print OUT Unicode::Normalize::normalize('C', $new_contents);
309 print OUT $new_contents;
312 if ($form->{"format"} =~ /postscript/i) {
313 return $self->convert_to_postscript();
314 } elsif ($form->{"format"} =~ /pdf/i) {
315 return $self->convert_to_pdf();
321 sub convert_to_postscript {
323 my ($form, $userspath) = ($self->{"form"}, $self->{"userspath"});
325 # Convert the tex file to postscript
327 if (!chdir("$userspath")) {
328 $self->{"error"} = "chdir : $!";
333 $form->{tmpfile} =~ s/\Q$userspath\E\///g;
335 my $latex = $self->_get_latex_path();
336 my $old_home = $ENV{HOME};
337 my $old_openin_any = $ENV{openin_any};
338 $ENV{HOME} = $userspath =~ m|^/| ? $userspath : getcwd();
339 $ENV{openin_any} = "p";
341 for (my $run = 1; $run <= 2; $run++) {
342 system("${latex} --interaction=nonstopmode $form->{tmpfile} " .
343 "> $form->{tmpfile}.err");
345 $ENV{HOME} = $old_home;
346 $ENV{openin_any} = $old_openin_any;
347 $self->{"error"} = $form->cleanup($latex);
352 $form->{tmpfile} =~ s/tex$/dvi/;
354 system("dvips $form->{tmpfile} -o -q > /dev/null");
355 $ENV{HOME} = $old_home;
356 $ENV{openin_any} = $old_openin_any;
359 $self->{"error"} = "dvips : $!";
360 $self->cleanup('dvips');
363 $form->{tmpfile} =~ s/dvi$/ps/;
372 my ($form, $userspath) = ($self->{"form"}, $self->{"userspath"});
374 # Convert the tex file to PDF
376 if (!chdir("$userspath")) {
377 $self->{"error"} = "chdir : $!";
382 $form->{tmpfile} =~ s/\Q$userspath\E\///g;
384 my $latex = $self->_get_latex_path();
385 my $old_home = $ENV{HOME};
386 my $old_openin_any = $ENV{openin_any};
387 $ENV{HOME} = $userspath =~ m|^/| ? $userspath : getcwd();
388 $ENV{openin_any} = "p";
390 for (my $run = 1; $run <= 2; $run++) {
391 system("${latex} --interaction=nonstopmode $form->{tmpfile} " .
392 "> $form->{tmpfile}.err");
394 $ENV{HOME} = $old_home;
395 $ENV{openin_any} = $old_openin_any;
396 $self->{error} = $form->cleanup($latex);
401 $ENV{HOME} = $old_home;
402 $ENV{openin_any} = $old_openin_any;
403 $form->{tmpfile} =~ s/tex$/pdf/;
408 sub _get_latex_path {
409 return $::lx_office_conf{applications}->{latex} || 'pdflatex';
412 sub get_mime_type() {
415 if ($self->{"form"}->{"format"} =~ /postscript/i) {
416 return "application/postscript";
418 return "application/pdf";