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from parsimonious.grammar import Grammar
from .. import document_matchers
def read_document_matcher(string):
root_node = _grammar.parse(string)
element_node = root_node.children[0]
if element_node.expr_name == "paragraph":
return _read_paragraph_node(element_node)
elif element_node.expr_name == "run":
return _read_run_node(element_node)
def _read_paragraph_node(paragraph_node):
style_name = _read_style_node(paragraph_node.children[1])
return document_matchers.paragraph(style_name=style_name)
def _read_run_node(run_node):
style_name = _read_style_node(run_node.children[1])
return document_matchers.run(style_name=style_name)
def _read_style_node(style_node):
if style_node.children:
return style_node.children[0].children[1].text
else:
return None
_grammar = Grammar(r"""
matcher = paragraph / run
paragraph = "p" style_name?
run = "r" style_name?
style_name = "." style_identifier
style_identifier = ~"[A-Z0-9]*"i
""")
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