def apply_on(self, text, aliases=None):
initial_aliases = dict(aliases) if aliases is not None else dict()
temp_match = SequenceMatch(
self.content,
BetweenMatch(),
EndAnchorMatch(),
)
initial_context = MatchContext(
text=text,
position=0,
aliases=initial_aliases,
matched_text=None,
anchored=True,
)
for _ in range(MAX_ITERATIONS):
solution = next(temp_match.execute(initial_context), None)
if solution is None:
return ApplyRuleResult(text=text, aliases=initial_aliases)
if solution.aliases != initial_context.aliases:
initial_context = initial_context._replace(aliases=solution.aliases)
continue
return ApplyRuleResult(text=solution.matched_text, aliases=solution.aliases)
raise AliasDependenciesTooComplexError()
def _execute_immaterial_match_impl(self, context):
temp_match = SequenceMatch(
RepeatMatch(
AlternativesMatch(
self.term,
BetweenMatch(),
),
0,
None,
),
BetweenMatch(),
EndAnchorMatch(),
)
temp_context = context._replace(anchored=True)
solution = next(temp_match.execute(temp_context), None)
if solution is not None:
yield context._replace(
text=context.text[:context.position]+solution.matched_text,
matched_text='',
aliases=solution.aliases,
)
else:
yield context._replace(matched_text='')
def p_sequence_match_empty(p):
"""sequence_match : """
p[0] = SequenceMatch()
try:
p[0].source_span = SourceSpan.right_after(p[-1].source_span)
except AttributeError:
p[0].source_span = SourceSpan.at_beginning()
