diff options
Diffstat (limited to 'IkiWiki/Plugin/teximg.pm')
| -rw-r--r-- | IkiWiki/Plugin/teximg.pm | 62 |
1 files changed, 51 insertions, 11 deletions
diff --git a/IkiWiki/Plugin/teximg.pm b/IkiWiki/Plugin/teximg.pm index 369c10882..661d97b1f 100644 --- a/IkiWiki/Plugin/teximg.pm +++ b/IkiWiki/Plugin/teximg.pm @@ -10,6 +10,17 @@ use File::Temp qw(tempdir); use HTML::Entities; use IkiWiki 2.00; +my $default_prefix = <<EOPREFIX; +\\documentclass{article} +\\usepackage{amsmath} +\\usepackage{amsfonts} +\\usepackage{amssymb} +\\pagestyle{empty} +\\begin{document} +EOPREFIX + +my $default_postfix = '\\end{document}'; + sub import { #{{{ hook(type => "getsetup", id => "teximg", call => \&getsetup); hook(type => "preprocess", id => "teximg", call => \&preprocess); @@ -21,6 +32,26 @@ sub getsetup () { #{{{ safe => 1, rebuild => undef, }, + teximg_dvipng => { + type => "boolean", + description => "Should teximg use dvipng to render, or dvips and convert?", + safe => 0, + rebuild => undef, + }, + teximg_prefix => { + type => "string", + example => $default_prefix, + description => "LaTeX prefix for teximg plugin", + safe => 0, # Not sure how secure LaTeX is... + rebuild => 1, + }, + teximg_postfix => { + type => "string", + example => $default_postfix, + description => "LaTeX postfix for teximg plugin", + safe => 0, # Not sure how secure LaTeX is... + rebuild => 1, + }, } #}}} sub preprocess (@) { #{{{ @@ -105,25 +136,34 @@ sub gen_image ($$$$) { #{{{ my $digest = shift; my $imagedir = shift; - #TODO This should move into the setup file. - my $tex = '\documentclass['.$height.'pt]{scrartcl}'; - $tex .= '\usepackage[version=3]{mhchem}'; - $tex .= '\usepackage{amsmath}'; - $tex .= '\usepackage{amsfonts}'; - $tex .= '\usepackage{amssymb}'; - $tex .= '\pagestyle{empty}'; - $tex .= '\begin{document}'; + if (!defined $config{teximg_prefix}) { + $config{teximg_prefix} = $default_prefix; + } + if (!defined $config{teximg_postfix}) { + $config{teximg_postfix} = $default_postfix; + } + if (!defined $config{teximg_dvipng}) { + $config{teximg_dvipng} = length `which dvipng 2>/dev/null`; + } + + my $tex = $config{teximg_prefix}; $tex .= '$$'.$code.'$$'; - $tex .= '\end{document}'; + $tex .= $config{teximg_postfix}; + $tex =~ s!\\documentclass{article}!\\documentclass[${height}pt]{article}!g; + $tex =~ s!\\documentclass{scrartcl}!\\documentclass[${height}pt]{scrartcl}!g; my $tmp = eval { create_tmp_dir($digest) }; if (! $@ && writefile("$digest.tex", $tmp, $tex) && system("cd $tmp; latex --interaction=nonstopmode $tmp/$digest.tex > /dev/null") == 0 && - system("dvips -E $tmp/$digest.dvi -o $tmp/$digest.ps 2> $tmp/$digest.log") == 0 && # ensure destination directory exists writefile("$imagedir/$digest.png", $config{destdir}, "") && - system("convert -density 120 -trim -transparent \"#FFFFFF\" $tmp/$digest.ps $config{destdir}/$imagedir/$digest.png > $tmp/$digest.log") == 0) { + (($config{teximg_dvipng} && + system("dvipng -D 120 -bg Transparent -T tight -o $config{destdir}/$imagedir/$digest.png $tmp/$digest.dvi > $tmp/$digest.log") == 0 + ) || (!$config{teximg_dvipng} && + system("dvips -E $tmp/$digest.dvi -o $tmp/$digest.ps 2> $tmp/$digest.log") == 0 && + system("convert -density 120 -trim -transparent \"#FFFFFF\" $tmp/$digest.ps $config{destdir}/$imagedir/$digest.png > $tmp/$digest.log") == 0 + ))) { return 1; } else { |