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显示公式、作图、乐谱、棋谱……

这几天工作之外心思都放在【格志】上了。使用的还是我熟悉的 WordPress,模板选择在 k2 基础上修改。虽然 k2 还是 beta 版本,使用后有一丁点风险,但是它已经很不错了。有些很漂亮的技术,比如 ajax 增强了的留言,以及动态搜索。模板里也预设了一些代码,可以很方便的安装一些插件,等等。

格志】定位为一个学术 blog,而且作者多是理工科的,在帖子里显示公式成了必要。虽说"每一个数学公式会让你的读者减少一半"(via Chen Hui ),但我并不在意这个。

现在【格志】可以方便的使用LaTeX语法显示公式了。使用的是陈辉介绍的一款 WordPress 插件 Latexrender。他还写了一个详细的安装说明。这个LatexRender需要服务器端 LaTeX 和 ImageMagick 支持,还好 dreamhost 都有。

例子:输入[ tex] e^{i \pi} = -1 [/tex](去掉[后一个空格)

复杂一点的,[ tex] |x| = \left\{ \begin{array}{ll} x & \mbox{if $x \geq 0$};\\ -x & \mbox{if $x < 0$}.\end{array} \right. [/tex]

如果不幸服务器没有安装 LaTeX 和 ImageMagick,但有shell账户,陈辉还介绍了如何无root权限安装LaTeX。如果还是不行,你可以尝试使用这个插件里捆绑的另一个插件,使用 mimetex。你需要下载或者自己编译一个mimetex.cgi 程序。

在这个LaTexRender基础上还有一个插件:IllustRender,可以在帖子里使用 metapost 或 postscript 代码作图。

循着这样的思路下去,我又发现了 WikiTex,一个 MediaWiki 增强模块,用来显示乐谱,化学分子式,围棋谱,象棋谱,费曼图,GnuPlot,等等。真是眼花缭乱啊。我想不难把这些弄成 WordPress 插件,知道有,就不难了。

想象一个音乐网志,在里面很方便地显示乐谱;一个围棋网志,很方便地显示棋谱……

from http://yanfeng.org/blog/page/5/

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