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from ... import documents, document_matchers
from .errors import LineParseError
from .tokeniser import TokenType
from .token_parser import try_parse_class_name, parse_string
def parse_document_matcher(tokens):
if tokens.try_skip(TokenType.IDENTIFIER, "p"):
style_id = try_parse_class_name(tokens)
style_name = _parse_style_name(tokens)
numbering = _parse_numbering(tokens)
return document_matchers.paragraph(
style_id=style_id,
style_name=style_name,
numbering=numbering,
)
elif tokens.try_skip(TokenType.IDENTIFIER, "r"):
style_id = try_parse_class_name(tokens)
style_name = _parse_style_name(tokens)
return document_matchers.run(
style_id=style_id,
style_name=style_name,
)
elif tokens.try_skip(TokenType.IDENTIFIER, "table"):
style_id = try_parse_class_name(tokens)
style_name = _parse_style_name(tokens)
return document_matchers.table(
style_id=style_id,
style_name=style_name,
)
elif tokens.try_skip(TokenType.IDENTIFIER, "b"):
return document_matchers.bold
elif tokens.try_skip(TokenType.IDENTIFIER, "i"):
return document_matchers.italic
elif tokens.try_skip(TokenType.IDENTIFIER, "u"):
return document_matchers.underline
elif tokens.try_skip(TokenType.IDENTIFIER, "strike"):
return document_matchers.strikethrough
elif tokens.try_skip(TokenType.IDENTIFIER, "all-caps"):
return document_matchers.all_caps
elif tokens.try_skip(TokenType.IDENTIFIER, "small-caps"):
return document_matchers.small_caps
elif tokens.try_skip(TokenType.IDENTIFIER, "highlight"):
return _parse_highlight(tokens)
elif tokens.try_skip(TokenType.IDENTIFIER, "comment-reference"):
return document_matchers.comment_reference
elif tokens.try_skip(TokenType.IDENTIFIER, "br"):
return _parse_break(tokens)
else:
raise LineParseError("Unrecognised document element: {0}".format(tokens.next_value(TokenType.IDENTIFIER)))
def _parse_style_name(tokens):
if tokens.try_skip(TokenType.SYMBOL, "["):
tokens.skip(TokenType.IDENTIFIER, "style-name")
string_matcher = _parse_string_matcher(tokens)
tokens.skip(TokenType.SYMBOL, "]")
return string_matcher
else:
return None
def _parse_string_matcher(tokens):
if tokens.try_skip(TokenType.SYMBOL, "="):
return document_matchers.equal_to(parse_string(tokens))
elif tokens.try_skip(TokenType.SYMBOL, "^="):
return document_matchers.starts_with(parse_string(tokens))
else:
raise LineParseError("Unrecognised string matcher: {0}".format(tokens.next_value()))
def _parse_numbering(tokens):
if tokens.try_skip(TokenType.SYMBOL, ":"):
is_ordered = _parse_list_type(tokens)
tokens.skip(TokenType.SYMBOL, "(")
level = int(tokens.next_value(TokenType.INTEGER)) - 1
tokens.skip(TokenType.SYMBOL, ")")
return documents.numbering_level(level, is_ordered=is_ordered)
def _parse_list_type(tokens):
list_type = tokens.next_value(TokenType.IDENTIFIER)
if list_type == "ordered-list":
return True
elif list_type == "unordered-list":
return False
else:
raise LineParseError("Unrecognised list type: {0}".format(list_type))
def _parse_highlight(tokens):
if tokens.try_skip(TokenType.SYMBOL, "["):
tokens.skip(TokenType.IDENTIFIER, "color")
tokens.skip(TokenType.SYMBOL, "=")
color = parse_string(tokens)
tokens.skip(TokenType.SYMBOL, "]");
else:
color = None
return document_matchers.highlight(color=color)
def _parse_break(tokens):
tokens.skip(TokenType.SYMBOL, "[")
tokens.skip(TokenType.IDENTIFIER, "type")
tokens.skip(TokenType.SYMBOL, "=")
type_name = parse_string(tokens)
tokens.skip(TokenType.SYMBOL, "]");
if type_name == "line":
return document_matchers.line_break
elif type_name == "page":
return document_matchers.page_break
elif type_name == "column":
return document_matchers.column_break
else:
raise LineParseError("Unrecognised break type: {0}".format(type_name))
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