Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/pygments/lexers/email.py: 75%

1""" 

2 pygments.lexers.email 

3 ~~~~~~~~~~~~~~~~~~~~~ 

4 

5 Lexer for the raw E-mail. 

6 

7 :copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS. 

8 :license: BSD, see LICENSE for details. 

9""" 

10 

11from pygments.lexer import RegexLexer, DelegatingLexer, bygroups 

12from pygments.lexers.mime import MIMELexer 

13from pygments.token import Text, Keyword, Name, String, Number, Comment 

14from pygments.util import get_bool_opt 

15 

16__all__ = ["EmailLexer"] 

17 

18 

19class EmailHeaderLexer(RegexLexer): 

20 """ 

21 Sub-lexer for raw E-mail. This lexer only process header part of e-mail. 

22 

23 .. versionadded:: 2.5 

24 """ 

25 

26 def __init__(self, **options): 

27 super().__init__(**options) 

28 self.highlight_x = get_bool_opt(options, "highlight-X-header", False) 

29 

30 def get_x_header_tokens(self, match): 

31 if self.highlight_x: 

32 # field 

33 yield match.start(1), Name.Tag, match.group(1) 

34 

35 # content 

36 default_actions = self.get_tokens_unprocessed( 

37 match.group(2), stack=("root", "header")) 

38 yield from default_actions 

39 else: 

40 # lowlight 

41 yield match.start(1), Comment.Special, match.group(1) 

42 yield match.start(2), Comment.Multiline, match.group(2) 

43 

44 tokens = { 

45 "root": [ 

46 (r"^(?:[A-WYZ]|X400)[\w\-]*:", Name.Tag, "header"), 

47 (r"^(X-(?:\w[\w\-]*:))([\s\S]*?\n)(?![ \t])", get_x_header_tokens), 

48 ], 

49 "header": [ 

50 # folding 

51 (r"\n[ \t]", Text.Whitespace), 

52 (r"\n(?![ \t])", Text.Whitespace, "#pop"), 

53 

54 # keywords 

55 (r"\bE?SMTPS?\b", Keyword), 

56 (r"\b(?:HE|EH)LO\b", Keyword), 

57 

58 # mailbox 

59 (r"[\w\.\-\+=]+@[\w\.\-]+", Name.Label), 

60 (r"<[\w\.\-\+=]+@[\w\.\-]+>", Name.Label), 

61 

62 # domain 

63 (r"\b(\w[\w\.-]*\.[\w\.-]*\w[a-zA-Z]+)\b", Name.Function), 

64 

65 # IPv4 

66 (r"(?<=\b)(?:(?:25[0-5]|2[0-4][0-9]|1?[0-9][0-9]?)\.){3}(?:25[0" 

67 r"-5]|2[0-4][0-9]|1?[0-9][0-9]?)(?=\b)", 

68 Number.Integer), 

69 

70 # IPv6 

71 (r"(?<=\b)([0-9a-fA-F]{1,4}:){1,7}:(?!\b)", Number.Hex), 

72 (r"(?<=\b):((:[0-9a-fA-F]{1,4}){1,7}|:)(?=\b)", Number.Hex), 

73 (r"(?<=\b)([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}(?=\b)", Number.Hex), 

74 (r"(?<=\b)([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}(?=\b)", Number.Hex), 

75 (r"(?<=\b)[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})(?=\b)", Number.Hex), 

76 (r"(?<=\b)fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}(?=\b)", Number.Hex), 

77 (r"(?<=\b)([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}(?=\b)", Number.Hex), 

78 (r"(?<=\b)([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}(?=\b)", 

79 Number.Hex), 

80 (r"(?<=\b)([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}(?=\b)", 

81 Number.Hex), 

82 (r"(?<=\b)([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}(?=\b)", 

83 Number.Hex), 

84 (r"(?<=\b)::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}" 

85 r"[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}" 

86 r"[0-9])(?=\b)", 

87 Number.Hex), 

88 (r"(?<=\b)([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9])" 

89 r"{0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])(?=\b)", 

90 Number.Hex), 

91 

92 # Date time 

93 (r"(?:(Sun|Mon|Tue|Wed|Thu|Fri|Sat),\s+)?(0[1-9]|[1-2]?[0-9]|3[" 

94 r"01])\s+(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s+(" 

95 r"19[0-9]{2}|[2-9][0-9]{3})\s+(2[0-3]|[0-1][0-9]):([0-5][0-9])" 

96 r"(?::(60|[0-5][0-9]))?(?:\.\d{1,5})?\s+([-\+][0-9]{2}[0-5][0-" 

97 r"9]|\(?(?:UTC?|GMT|(?:E|C|M|P)(?:ST|ET|DT)|[A-IK-Z])\)?)", 

98 Name.Decorator), 

99 

100 # RFC-2047 encoded string 

101 (r"(=\?)([\w-]+)(\?)([BbQq])(\?)([\[\w!\"#$%&\'()*+,-./:;<=>@[\\" 

102 r"\]^_`{|}~]+)(\?=)", 

103 bygroups(String.Affix, Name.Constant, String.Affix, Keyword.Constant, 

104 String.Affix, Number.Hex, String.Affix)), 

105 

106 # others 

107 (r'[\s]+', Text.Whitespace), 

108 (r'[\S]', Text), 

109 ], 

110 } 

111 

112 

113class EmailLexer(DelegatingLexer): 

114 """ 

115 Lexer for raw E-mail. 

116 

117 Additional options accepted: 

118 

119 `highlight-X-header` 

120 Highlight the fields of ``X-`` user-defined email header. (default: 

121 ``False``). 

122 

123 .. versionadded:: 2.5 

124 """ 

125 

126 name = "E-mail" 

127 aliases = ["email", "eml"] 

128 filenames = ["*.eml"] 

129 mimetypes = ["message/rfc822"] 

130 

131 def __init__(self, **options): 

132 super().__init__(EmailHeaderLexer, MIMELexer, Comment, **options)