Re: [Python-markdown-discuss] Trac with Markdown

[Brian J. <bri...@gn...>]

A while back I did an ugly hack that mostly worked (but I haven't used
it in a while).  I just uses a giant regular expresion to extract link
targets, run them through the wiki engine, and then process the whole
thing with markdown.py.

There must be a better way.


"""Trac plugin for Markdown Syntax (with links)

Everything markdown-ed as a link target is run through Trac's wiki
formatter to get a substitute url.

Tested with Trac 0.8.1 and python-markdown 1.4 on Debian GNU/Linux.

Brian Jaress
2007-01-04
"""

from re import sub, compile, search, I
from markdown import markdown
from trac.WikiFormatter import wiki_to_oneliner

#links, autolinks, and reference-style links
LINK = compile(
    r'(\]\()([^) ]+)([^)]*\))|(<)([^>]+)(>)|(\n\[[^]]+\]: *)([^ \n]+)(.*\n)'
)

HREF = compile(r'href=[\'"]?([^\'" ]*)')

def execute(hdf, txt, env):
    abs = env.abs_href.base
    abs = abs[:len(abs) - len(env.href.base)]
    def convert(m):
        pre, target, suf = filter(None, m.groups())
        url = search(
                HREF,
                wiki_to_oneliner(target, hdf, env, env.get_db_cnx()),
                I).groups()[0]
        #Trac creates relative links, which markdown won't touch inside
        # <autolinks> because they look like HTML
        if pre == '<' and url != target:
            pre += abs
        return pre + str(url) + suf

    return markdown(sub(LINK, convert, txt))



On Tue, Oct 16, 2007 at 03:45:46PM -0500, Yuri Takhteyev wrote:
> Has anyone gotten Trac working with Markdown?  What exactly does it take?
> 
>   - yuri
> 
> -- 
> http://www.freewisdom.org/

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-- 
Brian Jaress
bri...@gn...
http://brian-jaress.livejournal.com