First example of the showmore plugin

Here's my first stab at the showmore plugin.  It works to a point, but it
does not link directly to an entry yet.  I haven't figured out how to get
the url.

Here it is -

I call it from a story by putting $showmore('link to more') in the template.

Thoughts or comments are appreciated.

-Chris

"""
If the user puts <!---more---> in a document, then split
the output at the label and present a link to more detailed information
"""
from Pyblosxom import tools

entry = {}

def showmore(var):
    global entry
    registry = tools.get_registry()
    req = registry["request"]
    data = req.getData()
    conf = req.getConfiguration()
    story = entry.getData()
    if entry.has_key('more'):
        output = "<BR /> %s" % var
        return output
    else:
        return ''

def cb_prepare(args):
     request = args["request"]
     data = request.getData()
     data["showmore"] = showmore

def cb_story(args):
    global entry
    entry = args['entry']


def cb_postformat(args):
        text = str(args['entry_data']['body'])
        try:
            first, last = text.split("<!---more--->")
            args['entry_data']['body'] = first
            entry['more'] = last
        except:
            pass





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