Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/markdown_it/rules_inline/emphasis.py: 96%

1# Process *this* and _that_ 

2# 

3from __future__ import annotations 

4 

5from .state_inline import Delimiter, StateInline 

6 

7 

8def tokenize(state: StateInline, silent: bool) -> bool: 

9 """Insert each marker as a separate text token, and add it to delimiter list""" 

10 start = state.pos 

11 marker = state.src[start] 

12 

13 if silent: 

14 return False 

15 

16 if marker not in ("_", "*"): 

17 return False 

18 

19 scanned = state.scanDelims(state.pos, marker == "*") 

20 

21 for _ in range(scanned.length): 

22 token = state.push("text", "", 0) 

23 token.content = marker 

24 state.delimiters.append( 

25 Delimiter( 

26 marker=ord(marker), 

27 length=scanned.length, 

28 token=len(state.tokens) - 1, 

29 end=-1, 

30 open=scanned.can_open, 

31 close=scanned.can_close, 

32 ) 

33 ) 

34 

35 state.pos += scanned.length 

36 

37 return True 

38 

39 

40def _postProcess(state: StateInline, delimiters: list[Delimiter]) -> None: 

41 i = len(delimiters) - 1 

42 while i >= 0: 

43 startDelim = delimiters[i] 

44 

45 # /* _ */ /* * */ 

46 if startDelim.marker != 0x5F and startDelim.marker != 0x2A: 

47 i -= 1 

48 continue 

49 

50 # Process only opening markers 

51 if startDelim.end == -1: 

52 i -= 1 

53 continue 

54 

55 endDelim = delimiters[startDelim.end] 

56 

57 # If the previous delimiter has the same marker and is adjacent to this one, 

58 # merge those into one strong delimiter. 

59 # 

60 # `<em><em>whatever</em></em>` -> `<strong>whatever</strong>` 

61 # 

62 isStrong = ( 

63 i > 0 

64 and delimiters[i - 1].end == startDelim.end + 1 

65 # check that first two markers match and adjacent 

66 and delimiters[i - 1].marker == startDelim.marker 

67 and delimiters[i - 1].token == startDelim.token - 1 

68 # check that last two markers are adjacent (we can safely assume they match) 

69 and delimiters[startDelim.end + 1].token == endDelim.token + 1 

70 ) 

71 

72 ch = chr(startDelim.marker) 

73 

74 token = state.tokens[startDelim.token] 

75 token.type = "strong_open" if isStrong else "em_open" 

76 token.tag = "strong" if isStrong else "em" 

77 token.nesting = 1 

78 token.markup = ch + ch if isStrong else ch 

79 token.content = "" 

80 

81 token = state.tokens[endDelim.token] 

82 token.type = "strong_close" if isStrong else "em_close" 

83 token.tag = "strong" if isStrong else "em" 

84 token.nesting = -1 

85 token.markup = ch + ch if isStrong else ch 

86 token.content = "" 

87 

88 if isStrong: 

89 state.tokens[delimiters[i - 1].token].content = "" 

90 state.tokens[delimiters[startDelim.end + 1].token].content = "" 

91 i -= 1 

92 

93 i -= 1 

94 

95 

96def postProcess(state: StateInline) -> None: 

97 """Walk through delimiter list and replace text tokens with tags.""" 

98 _postProcess(state, state.delimiters) 

99 

100 for token in state.tokens_meta: 

101 if token and "delimiters" in token: 

102 _postProcess(state, token["delimiters"])