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# Copyright 2011 Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import inspect
import re
import ttystatus
def _find_widgets():
names = dir(ttystatus)
objs = [getattr(ttystatus, x) for x in names]
classes = [o for o in objs if inspect.isclass(o)]
widget_classes = [c for c in classes if issubclass(c, ttystatus.Widget)]
subclasses = [w for w in widget_classes if w != ttystatus.Widget]
return subclasses
widgets = _find_widgets()
def parse(fmt):
'''Parse format string.'''
names = [x.__name__ for x in widgets]
namespat = '|'.join(names)
argspat = r'[0-9a-zA-Z,_-]*'
pat = r'%%(?P<class>%s)\((?P<args>%s)\)' % (namespat, argspat)
pat = re.compile(pat)
result = []
prefix = ''
while fmt:
m = pat.match(fmt)
if m:
if prefix:
literal = ttystatus.Literal(prefix)
literal.interested_in = []
result.append(literal)
prefix = ''
klass = getattr(ttystatus, m.group('class'))
argnames = m.group('args').split(',')
argnames = [x for x in argnames if x]
widget = klass(*argnames)
widget.interested_in = argnames or None
result.append(widget)
fmt = fmt[m.end():]
elif fmt.startswith('%%'):
prefix += '%'
fmt = fmt[2:]
else:
prefix += fmt[0]
fmt = fmt[1:]
if prefix:
literal = ttystatus.Literal(prefix)
literal.interested_in = []
result.append(literal)
return result
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