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−# formatter.py - generic output formatting for mercurial
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−#
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−# Copyright 2012 Matt Mackall <mpm@selenic.com>
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−#
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−# This software may be used and distributed according to the terms of the
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−# GNU General Public License version 2 or any later version.
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−
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−class baseformatter(object):
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−    def __init__(self, ui, topic, opts):
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−        self._ui = ui
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−        self._topic = topic
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−        self._style = opts.get("style")
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−        self._template = opts.get("template")
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−        self._item = None
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−    def __bool__(self):
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−        '''return False if we're not doing real templating so we can
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−        skip extra work'''
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−        return True
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−    def _showitem(self):
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−        '''show a formatted item once all data is collected'''
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−        pass
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−    def startitem(self):
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−        '''begin an item in the format list'''
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−        if self._item is not None:
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−            self._showitem()
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−        self._item = {}
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−    def data(self, **data):
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−        '''insert data into item that's not shown in default output'''
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−        self._item.update(data)
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−    def write(self, fields, deftext, *fielddata, **opts):
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−        '''do default text output while assigning data to item'''
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−        for k, v in zip(fields.split(), fielddata):
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−            self._item[k] = v
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−    def condwrite(self, cond, fields, deftext, *fielddata, **opts):
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−        '''do conditional write (primarily for plain formatter)'''
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−        for k, v in zip(fields.split(), fielddata):
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−            self._item[k] = v
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−    def plain(self, text, **opts):
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−        '''show raw text for non-templated mode'''
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−        pass
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−    def end(self):
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−        '''end output for the formatter'''
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−        if self._item is not None:
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−            self._showitem()
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−
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−class plainformatter(baseformatter):
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−    '''the default text output scheme'''
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−    def __init__(self, ui, topic, opts):
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−        baseformatter.__init__(self, ui, topic, opts)
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−    def __bool__(self):
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−        return False
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−    def startitem(self):
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−        pass
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−    def data(self, **data):
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−        pass
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−    def write(self, fields, deftext, *fielddata, **opts):
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−        self._ui.write(deftext % fielddata, **opts)
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−    def condwrite(self, cond, fields, deftext, *fielddata, **opts):
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−        '''do conditional write'''
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−        if cond:
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−            self._ui.write(deftext % fielddata, **opts)
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−    def plain(self, text, **opts):
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−        self._ui.write(text, **opts)
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−    def end(self):
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−        pass
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−
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−class debugformatter(baseformatter):
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−    def __init__(self, ui, topic, opts):
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−        baseformatter.__init__(self, ui, topic, opts)
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−        self._ui.write("%s = {\n" % self._topic)
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−    def _showitem(self):
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−        self._ui.write("    " + repr(self._item) + ",\n")
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−    def end(self):
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−        baseformatter.end(self)
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−        self._ui.write("}\n")
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−
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−def formatter(ui, topic, opts):
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−    if ui.configbool('ui', 'formatdebug'):
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−        return debugformatter(ui, topic, opts)
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−    return plainformatter(ui, topic, opts)