def index_from_str(s_ix, form):
if s_ix is None:
return None
elif s_ix == '<':
return FormIndex.createBeginningOfFormIndex()
elif s_ix == '>':
return FormIndex.createEndOfFormIndex()
def step_from_str(step):
if step.endswith('J'):
i = int(step[:-1])
mult = -10
else:
pieces = step.split(':')
i = int(pieces[0])
try:
mult = int(pieces[1])
except IndexError:
mult = -1
return (i, mult)
ix = reduce(lambda cur, (i, mult): FormIndex(cur, i, mult, None),
(step_from_str(step) for step in reversed(s_ix.split(','))),
None)
ix.assignRefs(form)
return ix
def index_from_str(s_ix, form):
if s_ix is None:
return None
elif s_ix == '<':
return FormIndex.createBeginningOfFormIndex()
elif s_ix == '>':
return FormIndex.createEndOfFormIndex()
def step_from_str(step):
if step.endswith('J'):
i = int(step[:-1])
mult = -10
else:
pieces = step.split(':')
i = int(pieces[0])
try:
mult = int(pieces[1])
except IndexError:
mult = -1
return (i, mult)
ix = reduce(lambda cur, (i, mult): FormIndex(cur, i, mult, None),
(step_from_str(step) for step in reversed(s_ix.split(','))),
None)
ix.assignRefs(form)
return ix
def walk(self):
form_ix = FormIndex.createBeginningOfFormIndex()
tree = []
self._walk(form_ix, tree)
return tree
def walk(self):
form_ix = FormIndex.createBeginningOfFormIndex()
tree = []
self._walk(form_ix, tree)
return tree