Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.11/site-packages/pygments/lexers/futhark.py: 100%

1""" 

2 pygments.lexers.futhark 

3 ~~~~~~~~~~~~~~~~~~~~~~~ 

4 

5 Lexer for the Futhark language 

6 

7 :copyright: Copyright 2006-2025 by the Pygments team, see AUTHORS. 

8 :license: BSD, see LICENSE for details. 

9""" 

10 

11from pygments.lexer import RegexLexer, bygroups 

12from pygments.token import Comment, Operator, Keyword, Name, String, \ 

13 Number, Punctuation, Whitespace 

14from pygments import unistring as uni 

15 

16__all__ = ['FutharkLexer'] 

17 

18 

19class FutharkLexer(RegexLexer): 

20 """ 

21 A Futhark lexer 

22 """ 

23 name = 'Futhark' 

24 url = 'https://futhark-lang.org/' 

25 aliases = ['futhark'] 

26 filenames = ['*.fut'] 

27 mimetypes = ['text/x-futhark'] 

28 version_added = '2.8' 

29 

30 num_types = ('i8', 'i16', 'i32', 'i64', 'u8', 'u16', 'u32', 'u64', 'f32', 'f64') 

31 

32 other_types = ('bool', ) 

33 

34 reserved = ('if', 'then', 'else', 'def', 'let', 'loop', 'in', 'with', 

35 'type', 'type~', 'type^', 

36 'val', 'entry', 'for', 'while', 'do', 'case', 'match', 

37 'include', 'import', 'module', 'open', 'local', 'assert', '_') 

38 

39 ascii = ('NUL', 'SOH', '[SE]TX', 'EOT', 'ENQ', 'ACK', 

40 'BEL', 'BS', 'HT', 'LF', 'VT', 'FF', 'CR', 'S[OI]', 'DLE', 

41 'DC[1-4]', 'NAK', 'SYN', 'ETB', 'CAN', 

42 'EM', 'SUB', 'ESC', '[FGRU]S', 'SP', 'DEL') 

43 

44 num_postfix = r'({})?'.format('|'.join(num_types)) 

45 

46 identifier_re = '[a-zA-Z_][a-zA-Z_0-9\']*' 

47 

48 # opstart_re = '+\-\*/%=\!><\|&\^' 

49 

50 tokens = { 

51 'root': [ 

52 (r'--(.*?)$', Comment.Single), 

53 (r'\s+', Whitespace), 

54 (r'\(\)', Punctuation), 

55 (r'\b({})(?!\')\b'.format('|'.join(reserved)), Keyword.Reserved), 

56 (r'\b({})(?!\')\b'.format('|'.join(num_types + other_types)), Keyword.Type), 

57 

58 # Identifiers 

59 (r'#\[([a-zA-Z_\(\) ]*)\]', Comment.Preproc), 

60 (rf'[#!]?({identifier_re}\.)*{identifier_re}', Name), 

61 

62 (r'\\', Operator), 

63 (r'[-+/%=!><|&*^][-+/%=!><|&*^.]*', Operator), 

64 (r'[][(),:;`{}?.\'~^]', Punctuation), 

65 

66 # Numbers 

67 (r'0[xX]_*[\da-fA-F](_*[\da-fA-F])*_*[pP][+-]?\d(_*\d)*' + num_postfix, 

68 Number.Float), 

69 (r'0[xX]_*[\da-fA-F](_*[\da-fA-F])*\.[\da-fA-F](_*[\da-fA-F])*' 

70 r'(_*[pP][+-]?\d(_*\d)*)?' + num_postfix, Number.Float), 

71 (r'\d(_*\d)*_*[eE][+-]?\d(_*\d)*' + num_postfix, Number.Float), 

72 (r'\d(_*\d)*\.\d(_*\d)*(_*[eE][+-]?\d(_*\d)*)?' + num_postfix, Number.Float), 

73 (r'0[bB]_*[01](_*[01])*' + num_postfix, Number.Bin), 

74 (r'0[xX]_*[\da-fA-F](_*[\da-fA-F])*' + num_postfix, Number.Hex), 

75 (r'\d(_*\d)*' + num_postfix, Number.Integer), 

76 

77 # Character/String Literals 

78 (r"'", String.Char, 'character'), 

79 (r'"', String, 'string'), 

80 # Special 

81 (r'\[[a-zA-Z_\d]*\]', Keyword.Type), 

82 (r'\(\)', Name.Builtin), 

83 ], 

84 'character': [ 

85 # Allows multi-chars, incorrectly. 

86 (r"[^\\']'", String.Char, '#pop'), 

87 (r"\\", String.Escape, 'escape'), 

88 ("'", String.Char, '#pop'), 

89 ], 

90 'string': [ 

91 (r'[^\\"]+', String), 

92 (r"\\", String.Escape, 'escape'), 

93 ('"', String, '#pop'), 

94 ], 

95 

96 'escape': [ 

97 (r'[abfnrtv"\'&\\]', String.Escape, '#pop'), 

98 (r'\^[][' + uni.Lu + r'@^_]', String.Escape, '#pop'), 

99 ('|'.join(ascii), String.Escape, '#pop'), 

100 (r'o[0-7]+', String.Escape, '#pop'), 

101 (r'x[\da-fA-F]+', String.Escape, '#pop'), 

102 (r'\d+', String.Escape, '#pop'), 

103 (r'(\s+)(\\)', bygroups(Whitespace, String.Escape), '#pop'), 

104 ], 

105 }