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from parsimonious.grammar import Grammar
from .. import document_matchers, documents
def read_document_matcher(string):
root_node = _grammar.parse(string)
return read_document_matcher_node(root_node)
def read_document_matcher_node(root_node):
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])
numbering = _read_list_node(paragraph_node.children[2])
return document_matchers.paragraph(style_name=style_name, numbering=numbering)
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
def _read_list_node(list_node):
if list_node.children:
return documents.NumberingLevel(
int(list_node.children[0].children[3].text),
is_ordered=list_node.children[0].children[1].text == "ordered-list",
)
else:
return None
grammar_text = r"""
document_matcher = paragraph / run
paragraph = "p" style_name? list?
run = "r" style_name?
style_name = "." style_identifier
style_identifier = ~"[A-Z0-9]*"i
list = ":" list_type "(" ~"[0-9]+" ")"
list_type = "ordered-list" / "unordered-list"
"""
_grammar = Grammar(grammar_text)
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