mirror of https://github.com/tLDP/LDP
346 lines
9.5 KiB
Perl
Executable File
346 lines
9.5 KiB
Perl
Executable File
#!/usr/bin/perl -w
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#
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# usage: ldp_print [options] <single_file.html>
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#
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# Creates a PDF variant of a single-file HTML representation of a
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# DocBook SGML (or XML) instance. This simple wrapper assumes that
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# the file was created using {open}jade in a manner similar to:
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#
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# jade -t sgml -i html -V nochunks -d $style $fname > $fname.html
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#
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# Give this script the filename as an argument. It will then parse
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# the file into 'title.html' and 'body.html' and send each to
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# htmldoc (as the corresponding title page and body of the document).
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#
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# OPTIONS:
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# --postscript Generate Postscript (by default, doesn't)
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# --nopdf Don't generate PDF (by default, generates PDF)
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# --size X Set output page size (default "universal")
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# X can be "A4", "Letter", or "WIDTHxLENGTHunits".
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# where units can be in, mm, or cm.
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#
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# CAVEATS:
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#
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# Assumes perl is in /usr/bin; adjust if necessary
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#
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# You may need to specify where the htmldoc executable resides.
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# The script assumes it's within your $PATH.
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#
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# If you want Postscript as an output variant, uncomment the
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# appropriate lines (see below).
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#
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# Relies on output from a DocBook instance created via DSSSL/{open}jade!
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#
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# Cleans up (removes) the intermediate files it creates (but not the
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# PDF or Postscript files, obviously!)
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#
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# Works silently; PDF (PostScript) will be created in the same directory
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# as was specified for the input (single-file HTML) file.
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#
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# Provided without warranty or support!
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#
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# <gferg (at) metalab.unc.edu> / Ferg
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# <dan.scott (at) acm.org> / Dan Scott
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# <dwheeler (at) dwheeler.com) / David A. Wheeler
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#
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# Licensed under the GNU GPL version 2.
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#
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# ChangeLog:
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# 16Oct2000 - 0.1 - initial entry <gferg (at) sgi.com>
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# 03Apr2001 - 0.2 - fix for <preface>
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# 05Jul2001 - 0.3 - fix for <tt> and -f
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# 12Oct2001 - 0.4 - fix for sections; loop thru both files (body/title)
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# 27Nov2001 - 0.5 - fixed bug in determining where doc-index lies
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# 18Jan2002 - 0.5.1 - entity fix (822*)
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# 02Apr2002 - 0.6 - misc fixes (bibliography/appendix, etc).
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# 04Apr2002 - 0.7 - fix for newer DSSSL
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# 27May2002 - 0.8 - Merged library and driver, greatly simplifying
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# installation, and added options to driver.
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# 09Aug2002 - 0.9 - Some minor clean-up
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#
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use strict;
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sub fix_print_html {
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my($in,$out,$ttl) = @_;
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open(IN_FILE, "< $in") || do {
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print "fix_print_html: cannot open $in: $!\n";
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return 0;
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};
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my($buf, $ttl_buf) = '';
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my($indx) = -1;
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my($is_article) = 1;
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while(<IN_FILE>) {
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if( $indx == 1 ) {
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# ignore everything until we see the chapter or sect
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#
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if( $_ =~ /CLASS="CHAP/i || $_ =~ /CLASS="PREF/i
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||
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$_ =~ /CLASS="SECT/i ) {
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$buf .= $_;
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$indx++;
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} else {
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next;
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}
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} elsif( $indx == 0 ) {
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# write out the title page file
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#
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if( $_ =~ /CLASS="TOC"/ ) {
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$ttl_buf .= "></DIV>\n</BODY>\n</HTML>\n";
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$ttl_buf =~ s/<\/H1\n/<\/H1\n><P><BR><BR\n/ms;
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$ttl_buf =~ s/<HR><\/DIV\n><HR>/<HR><\/DIV\n>/ms;
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&fix_html(\$ttl_buf, 1);
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open(TOC_FILE, "> $ttl") || do {
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print "fix_print_html: cannot open $ttl: $!\n";
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close(IN_FILE);
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return 0;
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};
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print TOC_FILE $ttl_buf;
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close(TOC_FILE);
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$ttl_buf = '';
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$indx++;
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} else {
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$ttl_buf .= $_;
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}
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} elsif( $indx < 0 ) {
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if( $_ =~ /CLASS="BOOK"/i ) {
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$is_article = 0;
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}
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# up to this point, both buffers get the line
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#
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if( $_ =~ /CLASS="TITLEPAGE"/ ) {
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$ttl_buf .= $_ . ">\n<P>\n<BR><BR><BR><BR>\n<\/P\n";
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$indx++;
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} else {
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$buf .= $_;
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$ttl_buf .= $_;
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}
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} else {
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$buf .= $_;
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}
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}
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close(IN_FILE);
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# fix body file
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#
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open(OUT_FILE, "> $out") || do {
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print "fix_print_html: cannot open $out: $!\n";
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return 0;
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};
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&fix_html(\$buf, $is_article);
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print OUT_FILE $buf;
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close(OUT_FILE);
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return 1;
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}
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sub fix_html {
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my($buf, $is_article) = @_;
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my($indx) = -1;
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# make corrections and write out the file
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#
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$$buf =~ s/(\n><LI\n)><P\n(.*?)<\/P\n>/$1$2\n/gms;
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$$buf =~ s/(\n><LI\n><DIV\nCLASS="FORMALPARA"\n)><P\n(.*?)<\/P\n>/$1$2\n/gms;
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$$buf =~ s/(\n><LI\nSTYLE="[^\"]+"\n)><P\n(.*?)<\/P\n>/$1$2\n/gms;
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if( $is_article == 0 ) {
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$$buf =~
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s/(\nCLASS="SECT[TION\d]+"\n>)<H1\n(.*?)<\/H1/$1<H0\n$2<\/H0/gims;
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$$buf =~
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s/(\nCLASS="SECT[TION\d]+"\n><HR>)<H1\n(.*?)<\/H1/$1<H0\n$2<\/H0/gims;
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}
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$$buf =~ s/<H1(\nCLASS="INDEXDIV"\n)(.*?)<\/H1/<H2$1$2<\/H2/gims;
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if( ($indx = rindex($$buf, "<H1\n><A\nNAME=\"DOC-INDEX\"")) > -1 ) {
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$$buf = substr($$buf, 0, $indx);
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$$buf .= "\n<\/BODY>\n<\/HTML>\n\n";
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} elsif( ($indx = rindex($$buf, "<H1\n><A\nNAME=\"doc-index\"")) > -1 ) {
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$$buf = substr($$buf, 0, $indx);
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$$buf .= "\n<\/BODY>\n<\/HTML>\n\n";
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}
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$$buf =~ s/\&\#13;//g;
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$$buf =~ s/\&\#60;/\</g;
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$$buf =~ s/\&\#62;/\>/g;
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$$buf =~ s/\&\#8211;/\-/g;
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$$buf =~ s/\&\#8220;/\"/g;
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$$buf =~ s/\&\#8221;/\"/g;
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$$buf =~ s/WIDTH=\"\d\"//g;
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$$buf =~ s/><[\/]*TBODY//g;
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$$buf =~ s/><[\/]*THEAD//g;
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$$buf =~ s/TYPE=\"1\"\n//gim;
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$$buf =~ s/<P\nCLASS="LITERALLAYOUT"(.*?)<\/P/<P CLASS="LITERALLAYOUT"><FONT FACE=\"courier\"$1<\/FONT><\/P/gms;
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my($cnt, $j) = 0;
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if( $$buf !~ /<H1/ ) {
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# for newer docbook styles, set h2 to h1, etc.
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#
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for($cnt=2; $cnt < 7; $cnt++ ) {
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$j = $cnt - 1;
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$$buf =~ s/<H${cnt}/<H${j}/g;
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$$buf =~ s/<\/H${cnt}/<\/H${j}/g;
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}
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} elsif( $is_article == 0 ) {
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# decrement the headers by 1 and then re-set the
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# chapter level only to H1...
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#
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for($cnt=5; $cnt >= 0; $cnt--) {
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$j = $cnt + 1;
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if( $cnt == 0 ) {
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$j = 2;
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}
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$$buf =~ s/<H${cnt}/<H${j}/g;
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$$buf =~ s/<\/H${cnt}/<\/H${j}/g;
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}
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my(@l) = split(/\n/, $$buf);
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for( $cnt=0; $cnt < (@l + 0); $cnt++ ) {
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if( $j == 1 ) {
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if( $l[$cnt] =~ /<DIV/ ) {
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$j = 0;
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next;
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}
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$l[$cnt] =~ s/<H2/<H1/g;
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$l[$cnt] =~ s/<\/H2/<\/H1/g;
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}
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if( $l[$cnt] =~ /^CLASS=\"CHAP/i
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||
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$l[$cnt] =~ /^NAME=\"BIBL/i
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$l[$cnt] =~ /^CLASS=\"APPENDIX/i
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$l[$cnt] =~ /^CLASS=\"GLOSSARY/i
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$l[$cnt] =~ /^CLASS=\"PREF/i
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$l[$cnt] =~ /^CLASS=\"TITLE/i ) {
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$j = 1;
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}
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}
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$$buf = join("\n", @l);
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}
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$$buf =~ s/><DIV\nCLASS="\w+"\n//gms;
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$$buf =~ s/><\/DIV\n//gms;
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$buf =~ s/<SPAN\n[^>]*?>//gms;
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$buf =~ s/<\/SPAN\n>//gms;
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$$buf =~ s/(><LI\n)><P\n(.*?)<\/P\n>(<\/LI\n)/$1$2$3/gms;
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return;
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}
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########### MAIN DRIVER ##############
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# Default values for options:
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my($generate_pdf) = 1;
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my($generate_ps) = 0;
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my($pagesize) = "universal";
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my($pth) = '';
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# Process options.
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my($arg);
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while (($#ARGV >= 0) && ($ARGV[0] =~ m/^-/)) {
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$arg = shift;
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if ($arg eq "--") {last;}
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elsif ($arg eq "--postscript") {$generate_ps = 1;}
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elsif ($arg eq "--nopostscript") {$generate_ps = 0;}
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elsif ($arg eq "--pdf") {$generate_pdf = 1;}
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elsif ($arg eq "--nopdf") {$generate_pdf = 0;}
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elsif ($arg eq "--size") {$pagesize = shift;}
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elsif ($arg eq "--toolroot") {$pth = shift; $pth .= "/";}
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else {die "\nldp_print: unknown option $arg\n";}
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}
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if( $ARGV[0] eq '' || !(-r $ARGV[0]) ) {
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die "\nusage: ldp_print [options] <single_file.html>\n\n";
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}
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# Compute htmldoc options.
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my($htmldoc_options) = "--size ${pagesize} --firstpage p1 --footer c.1";
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# Now get filename and check it. Don't allow whitespace, since a
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# filename with whitespace will cause trouble.
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# NOTE: If the filename can be controlled by an untrusted user,
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# the filename (and options!) need to be filtered further to forbid
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# metacharacters, control characters, etc. as well.
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my($filename) = $ARGV[0];
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if ($filename =~ m/ /) {
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die "\nldp_print: filenames cannot contain spaces.\n";
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}
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if ($filename =~ m/[\t\n]/) {
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die "\nldp_print: filenames cannot contain whitespace.\n";
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}
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my($fname_wo_ext) = $filename;
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$fname_wo_ext =~ s/\.[\w]+$//;
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# create new files from single HTML file to use for print
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#
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&fix_print_html($filename, 'body.html', 'title.html');
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if ($generate_pdf) {
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my($pdf_cmd) = "${pth}htmldoc ${htmldoc_options} -t pdf -f ${fname_wo_ext}.pdf " .
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"--titlefile title.html body.html ";
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system($pdf_cmd);
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die "\nldp_print: could not create ${fname_wo_ext}.pdf ($!)\n" if ($?);
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};
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if ($generate_ps) {
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my($ps_cmd) = "${pth}htmldoc ${htmldoc_options} -t ps -f ${fname_wo_ext}.ps " .
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"--titlefile title.html body.html";
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system($ps_cmd);
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die "\nldp_print: could not create ${fname_wo_ext}.ps ($!)\n" if ($?);
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};
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# cleanup
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#
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system("rm -f body.html title.html");
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exit(0);
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