diff options
Diffstat (limited to 'doc/todo')
| -rw-r--r-- | doc/todo/Move_teximg_latex_preamble_to_config_file.mdwn | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/doc/todo/Move_teximg_latex_preamble_to_config_file.mdwn b/doc/todo/Move_teximg_latex_preamble_to_config_file.mdwn index 130f8dd4e..2d5415c09 100644 --- a/doc/todo/Move_teximg_latex_preamble_to_config_file.mdwn +++ b/doc/todo/Move_teximg_latex_preamble_to_config_file.mdwn @@ -14,6 +14,43 @@ The patch also makes some other changes: > if mchem is dropped, I think the suggests on texlive-science in > debian/control should probably go? --[[Joey]] +>> Yes, changing the defaults could break some existing uses. I think in +>> this case, documenting in NEWS and dropping texlive-science is the +>> best option. In fact, NEWS should probably document the config +>> setting to return things to how they were. +>> +>> The reason I prefer dropping `mchem` rather than keeping it is that `mchem` +>> is non-standard. Now that things are configurable and it is easy to +>> add in if you want it, having only standard packages by default is a +>> good thing. Here is a proposed NEWS entry: + +File: TexImg standard preamble changed + +The [[plugins/teximg]] [[plugin]] now has a configurable LaTeX preamble. +As part of this change the `mchem` LaTeX package has been removed from +the default LaTeX preamble as it wasn't included in many TeX installations. + +The previous behaviour can be restored by adding the following to your ikiwiki setup: + + teximg_prefix => '\documentclass{scrartcl} + \usepackage[version=3]{mhchem} + \usepackage{amsmath} + \usepackage{amsfonts} + \usepackage{amssymb} + \pagestyle{empty} + \begin{document}', + +In addition, the rendering mechanism has been changed to use `dvipng` by default. +If you would like to return to the old rendering mechanism using `dvips` and `convert` +then you should add the following line to your ikiwiki setup: + + teximg_dvipng => 0, + +The LaTeX postfix is unchanged, but is also now configurable using `teximg_postfix`. +Happy TeXing. + +>> I think that about covers it. -- [[Will]] + diff --git a/IkiWiki/Plugin/teximg.pm b/IkiWiki/Plugin/teximg.pm index 369c108..8c3379f 100644 --- a/IkiWiki/Plugin/teximg.pm @@ -64,7 +101,7 @@ The patch also makes some other changes: } #}}} sub preprocess (@) { #{{{ - @@ -105,25 +137,34 @@ sub gen_image ($$$$) { #{{{ + @@ -105,25 +137,35 @@ sub gen_image ($$$$) { #{{{ my $digest = shift; my $imagedir = shift; @@ -92,6 +129,7 @@ The patch also makes some other changes: - $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 (! $@ && |