DivHelperPlugin

trac.ini

[divhelper]
div-alias.foo = class=foo
span-alias.red = "style=color:red;"

web_ui.py

# -*- coding:utf8 -*-
from trac.core import *
from trac.config import ConfigSection
from trac.wiki import IWikiMacroProvider
from trac.wiki.formatter import system_message
from trac.wiki.formatter import WikiProcessor
from trac.wiki.parser import parse_processor_args

class DivHelperPlugin(Component):
    "undocumented"
    implements (IWikiMacroProvider)

    _section = ConfigSection('divhelper', 'undocumented')
    _prefixes = {"div": "div-alias.", "span": "span-alias."}
    
    def get_macros(self):
        yield "cdiv"
        yield "cspan"
        for name, value in self._section.options():
            for pname, prefix in self._prefixes.items():
                if name.startswith(prefix):
                    yield pname + '_' + name[len(prefix):]

    def get_macro_description(self, name):
        return 'undocumented : %s' % name

    def expand_macro(self, formatter, name, content, args = None):
        if name in ("cdiv", "cspan"):
            try:
                clsname, content = content.split(",", 1)
                pname = name[1:]
                pargs = {"class": clsname}
                content = content.strip()
            except:
                return system_message("%s: invalid args (%s)" % (name, content))
        else:
            pname, alias = name.split("_", 1)
            key = self._prefixes[pname] + alias
            pargs = parse_processor_args(self._section.get(key))

        p = WikiProcessor(formatter, pname, pargs)
        return p.processor(content)

wiki

[[div_foo(あれこれ)]]
[[cdiv(bar, あれこれ)]]
[[span_red('''赤太字''')]]