Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/markdown_it/rules_core/replacements.py: 37%

1"""Simple typographic replacements 

2 

3* ``(c)``, ``(C)`` → © 

4* ``(tm)``, ``(TM)`` → ™ 

5* ``(r)``, ``(R)`` → ® 

6* ``(p)``, ``(P)`` → § 

7* ``+-`` → ± 

8* ``...`` → … 

9* ``?....`` → ?.. 

10* ``!....`` → !.. 

11* ``????????`` → ??? 

12* ``!!!!!`` → !!! 

13* ``,,,`` → , 

14* ``--`` → &ndash 

15* ``---`` → &mdash 

16""" 

17from __future__ import annotations 

18 

19import logging 

20import re 

21 

22from ..token import Token 

23from .state_core import StateCore 

24 

25LOGGER = logging.getLogger(__name__) 

26 

27# TODO: 

28# - fractionals 1/2, 1/4, 3/4 -> ½, ¼, ¾ 

29# - miltiplication 2 x 4 -> 2 × 4 

30 

31RARE_RE = re.compile(r"\+-|\.\.|\?\?\?\?|!!!!|,,|--") 

32 

33# Workaround for phantomjs - need regex without /g flag, 

34# or root check will fail every second time 

35# SCOPED_ABBR_TEST_RE = r"\((c|tm|r|p)\)" 

36 

37SCOPED_ABBR_RE = re.compile(r"\((c|tm|r|p)\)", flags=re.IGNORECASE) 

38 

39PLUS_MINUS_RE = re.compile(r"\+-") 

40 

41ELLIPSIS_RE = re.compile(r"\.{2,}") 

42 

43ELLIPSIS_QUESTION_EXCLAMATION_RE = re.compile(r"([?!])…") 

44 

45QUESTION_EXCLAMATION_RE = re.compile(r"([?!]){4,}") 

46 

47COMMA_RE = re.compile(r",{2,}") 

48 

49EM_DASH_RE = re.compile(r"(^|[^-])---(?=[^-]|$)", flags=re.MULTILINE) 

50 

51EN_DASH_RE = re.compile(r"(^|\s)--(?=\s|$)", flags=re.MULTILINE) 

52 

53EN_DASH_INDENT_RE = re.compile(r"(^|[^-\s])--(?=[^-\s]|$)", flags=re.MULTILINE) 

54 

55 

56SCOPED_ABBR = {"c": "©", "r": "®", "p": "§", "tm": "™"} 

57 

58 

59def replaceFn(match: re.Match[str]): 

60 return SCOPED_ABBR[match.group(1).lower()] 

61 

62 

63def replace_scoped(inlineTokens: list[Token]) -> None: 

64 inside_autolink = 0 

65 

66 for token in inlineTokens: 

67 if token.type == "text" and not inside_autolink: 

68 token.content = SCOPED_ABBR_RE.sub(replaceFn, token.content) 

69 

70 if token.type == "link_open" and token.info == "auto": 

71 inside_autolink -= 1 

72 

73 if token.type == "link_close" and token.info == "auto": 

74 inside_autolink += 1 

75 

76 

77def replace_rare(inlineTokens: list[Token]) -> None: 

78 inside_autolink = 0 

79 

80 for token in inlineTokens: 

81 if token.type == "text" and not inside_autolink: 

82 if RARE_RE.search(token.content): 

83 # +- -> ± 

84 token.content = PLUS_MINUS_RE.sub("±", token.content) 

85 

86 # .., ..., ....... -> … 

87 token.content = ELLIPSIS_RE.sub("…", token.content) 

88 

89 # but ?..... & !..... -> ?.. & !.. 

90 token.content = ELLIPSIS_QUESTION_EXCLAMATION_RE.sub( 

91 "\\1..", token.content 

92 ) 

93 token.content = QUESTION_EXCLAMATION_RE.sub("\\1\\1\\1", token.content) 

94 

95 # ,, ,,, ,,,, -> , 

96 token.content = COMMA_RE.sub(",", token.content) 

97 

98 # em-dash 

99 token.content = EM_DASH_RE.sub("\\1\u2014", token.content) 

100 

101 # en-dash 

102 token.content = EN_DASH_RE.sub("\\1\u2013", token.content) 

103 token.content = EN_DASH_INDENT_RE.sub("\\1\u2013", token.content) 

104 

105 if token.type == "link_open" and token.info == "auto": 

106 inside_autolink -= 1 

107 

108 if token.type == "link_close" and token.info == "auto": 

109 inside_autolink += 1 

110 

111 

112def replace(state: StateCore) -> None: 

113 if not state.md.options.typographer: 

114 return 

115 

116 for token in state.tokens: 

117 if token.type != "inline": 

118 continue 

119 if token.children is None: 

120 continue 

121 

122 if SCOPED_ABBR_RE.search(token.content): 

123 replace_scoped(token.children) 

124 

125 if RARE_RE.search(token.content): 

126 replace_rare(token.children)