Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/markdown_it/rules_inline/link.py: 98%

1# Process [link](<to> "stuff") 

2 

3from ..common.utils import isStrSpace, normalizeReference 

4from .state_inline import StateInline 

5 

6 

7def link(state: StateInline, silent: bool) -> bool: 

8 href = "" 

9 title = "" 

10 label = None 

11 oldPos = state.pos 

12 maximum = state.posMax 

13 start = state.pos 

14 parseReference = True 

15 

16 if state.src[state.pos] != "[": 

17 return False 

18 

19 labelStart = state.pos + 1 

20 labelEnd = state.md.helpers.parseLinkLabel(state, state.pos, True) 

21 

22 # parser failed to find ']', so it's not a valid link 

23 if labelEnd < 0: 

24 return False 

25 

26 pos = labelEnd + 1 

27 

28 if pos < maximum and state.src[pos] == "(": 

29 # 

30 # Inline link 

31 # 

32 

33 # might have found a valid shortcut link, disable reference parsing 

34 parseReference = False 

35 

36 # [link]( <href> "title" ) 

37 # ^^ skipping these spaces 

38 pos += 1 

39 while pos < maximum: 

40 ch = state.src[pos] 

41 if not isStrSpace(ch) and ch != "\n": 

42 break 

43 pos += 1 

44 

45 if pos >= maximum: 

46 return False 

47 

48 # [link]( <href> "title" ) 

49 # ^^^^^^ parsing link destination 

50 start = pos 

51 res = state.md.helpers.parseLinkDestination(state.src, pos, state.posMax) 

52 if res.ok: 

53 href = state.md.normalizeLink(res.str) 

54 if state.md.validateLink(href): 

55 pos = res.pos 

56 else: 

57 href = "" 

58 

59 # [link]( <href> "title" ) 

60 # ^^ skipping these spaces 

61 start = pos 

62 while pos < maximum: 

63 ch = state.src[pos] 

64 if not isStrSpace(ch) and ch != "\n": 

65 break 

66 pos += 1 

67 

68 # [link]( <href> "title" ) 

69 # ^^^^^^^ parsing link title 

70 res = state.md.helpers.parseLinkTitle(state.src, pos, state.posMax) 

71 if pos < maximum and start != pos and res.ok: 

72 title = res.str 

73 pos = res.pos 

74 

75 # [link]( <href> "title" ) 

76 # ^^ skipping these spaces 

77 while pos < maximum: 

78 ch = state.src[pos] 

79 if not isStrSpace(ch) and ch != "\n": 

80 break 

81 pos += 1 

82 

83 if pos >= maximum or state.src[pos] != ")": 

84 # parsing a valid shortcut link failed, fallback to reference 

85 parseReference = True 

86 

87 pos += 1 

88 

89 if parseReference: 

90 # 

91 # Link reference 

92 # 

93 if "references" not in state.env: 

94 return False 

95 

96 if pos < maximum and state.src[pos] == "[": 

97 start = pos + 1 

98 pos = state.md.helpers.parseLinkLabel(state, pos) 

99 if pos >= 0: 

100 label = state.src[start:pos] 

101 pos += 1 

102 else: 

103 pos = labelEnd + 1 

104 

105 else: 

106 pos = labelEnd + 1 

107 

108 # covers label == '' and label == undefined 

109 # (collapsed reference link and shortcut reference link respectively) 

110 if not label: 

111 label = state.src[labelStart:labelEnd] 

112 

113 label = normalizeReference(label) 

114 

115 ref = ( 

116 state.env["references"][label] if label in state.env["references"] else None 

117 ) 

118 if not ref: 

119 state.pos = oldPos 

120 return False 

121 

122 href = ref["href"] 

123 title = ref["title"] 

124 

125 # 

126 # We found the end of the link, and know for a fact it's a valid link 

127 # so all that's left to do is to call tokenizer. 

128 # 

129 if not silent: 

130 state.pos = labelStart 

131 state.posMax = labelEnd 

132 

133 token = state.push("link_open", "a", 1) 

134 token.attrs = {"href": href} 

135 

136 if title: 

137 token.attrSet("title", title) 

138 

139 # note, this is not part of markdown-it JS, but is useful for renderers 

140 if label and state.md.options.get("store_labels", False): 

141 token.meta["label"] = label 

142 

143 state.linkLevel += 1 

144 state.md.inline.tokenize(state) 

145 state.linkLevel -= 1 

146 

147 token = state.push("link_close", "a", -1) 

148 

149 state.pos = pos 

150 state.posMax = maximum 

151 return True