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comparison: eric6/ThirdParty/Pygments/pygments/lexers/rust.py
eric6/ThirdParty/Pygments/pygments/lexers/rust.py
- changeset 6942
- 2602857055c5
- parent 6651
- e8f3b5568b21
- child 7547
- 21b0534faebc
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| 6941:f99d60d6b59b | 6942:2602857055c5 |
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| 1 # -*- coding: utf-8 -*- | |
| 2 """ | |
| 3 pygments.lexers.rust | |
| 4 ~~~~~~~~~~~~~~~~~~~~ | |
| 5 | |
| 6 Lexers for the Rust language. | |
| 7 | |
| 8 :copyright: Copyright 2006-2017 by the Pygments team, see AUTHORS. | |
| 9 :license: BSD, see LICENSE for details. | |
| 10 """ | |
| 11 | |
| 12 from pygments.lexer import RegexLexer, include, bygroups, words, default | |
| 13 from pygments.token import Text, Comment, Operator, Keyword, Name, String, \ | |
| 14 Number, Punctuation, Whitespace | |
| 15 | |
| 16 __all__ = ['RustLexer'] | |
| 17 | |
| 18 | |
| 19 class RustLexer(RegexLexer): | |
| 20 """ | |
| 21 Lexer for the Rust programming language (version 1.10). | |
| 22 | |
| 23 .. versionadded:: 1.6 | |
| 24 """ | |
| 25 name = 'Rust' | |
| 26 filenames = ['*.rs', '*.rs.in'] | |
| 27 aliases = ['rust', 'rs'] | |
| 28 mimetypes = ['text/rust'] | |
| 29 | |
| 30 keyword_types = ( | |
| 31 words(('u8', 'u16', 'u32', 'u64', 'i8', 'i16', 'i32', 'i64', | |
| 32 'usize', 'isize', 'f32', 'f64', 'str', 'bool'), | |
| 33 suffix=r'\b'), | |
| 34 Keyword.Type) | |
| 35 | |
| 36 builtin_types = (words(( | |
| 37 # Reexported core operators | |
| 38 'Copy', 'Send', 'Sized', 'Sync', | |
| 39 'Drop', 'Fn', 'FnMut', 'FnOnce', | |
| 40 | |
| 41 # Reexported types and traits | |
| 42 'Box', | |
| 43 'ToOwned', | |
| 44 'Clone', | |
| 45 'PartialEq', 'PartialOrd', 'Eq', 'Ord', | |
| 46 'AsRef', 'AsMut', 'Into', 'From', | |
| 47 'Default', | |
| 48 'Iterator', 'Extend', 'IntoIterator', | |
| 49 'DoubleEndedIterator', 'ExactSizeIterator', | |
| 50 'Option', | |
| 51 'Some', 'None', | |
| 52 'Result', | |
| 53 'Ok', 'Err', | |
| 54 'SliceConcatExt', | |
| 55 'String', 'ToString', | |
| 56 'Vec'), suffix=r'\b'), | |
| 57 Name.Builtin) | |
| 58 | |
| 59 tokens = { | |
| 60 'root': [ | |
| 61 # rust allows a file to start with a shebang, but if the first line | |
| 62 # starts with #![ then it’s not a shebang but a crate attribute. | |
| 63 (r'#![^[\r\n].*$', Comment.Preproc), | |
| 64 default('base'), | |
| 65 ], | |
| 66 'base': [ | |
| 67 # Whitespace and Comments | |
| 68 (r'\n', Whitespace), | |
| 69 (r'\s+', Whitespace), | |
| 70 (r'//!.*?\n', String.Doc), | |
| 71 (r'///(\n|[^/].*?\n)', String.Doc), | |
| 72 (r'//(.*?)\n', Comment.Single), | |
| 73 (r'/\*\*(\n|[^/*])', String.Doc, 'doccomment'), | |
| 74 (r'/\*!', String.Doc, 'doccomment'), | |
| 75 (r'/\*', Comment.Multiline, 'comment'), | |
| 76 | |
| 77 # Macro parameters | |
| 78 (r"""\$([a-zA-Z_]\w*|\(,?|\),?|,?)""", Comment.Preproc), | |
| 79 # Keywords | |
| 80 (words(( | |
| 81 'as', 'box', 'const', 'crate', 'else', 'extern', | |
| 82 'for', 'if', 'impl', 'in', 'loop', 'match', 'move', | |
| 83 'mut', 'pub', 'ref', 'return', 'static', 'super', | |
| 84 'trait', 'unsafe', 'use', 'where', 'while'), suffix=r'\b'), | |
| 85 Keyword), | |
| 86 (words(('abstract', 'alignof', 'become', 'do', 'final', 'macro', | |
| 87 'offsetof', 'override', 'priv', 'proc', 'pure', 'sizeof', | |
| 88 'typeof', 'unsized', 'virtual', 'yield'), suffix=r'\b'), | |
| 89 Keyword.Reserved), | |
| 90 (r'(true|false)\b', Keyword.Constant), | |
| 91 (r'mod\b', Keyword, 'modname'), | |
| 92 (r'let\b', Keyword.Declaration), | |
| 93 (r'fn\b', Keyword, 'funcname'), | |
| 94 (r'(struct|enum|type|union)\b', Keyword, 'typename'), | |
| 95 (r'(default)(\s+)(type|fn)\b', bygroups(Keyword, Text, Keyword)), | |
| 96 keyword_types, | |
| 97 (r'self\b', Name.Builtin.Pseudo), | |
| 98 # Prelude (taken from Rust’s src/libstd/prelude.rs) | |
| 99 builtin_types, | |
| 100 # Path seperators, so types don't catch them. | |
| 101 (r'::\b', Text), | |
| 102 # Types in positions. | |
| 103 (r'(?::|->)', Text, 'typename'), | |
| 104 # Labels | |
| 105 (r'(break|continue)(\s*)(\'[A-Za-z_]\w*)?', | |
| 106 bygroups(Keyword, Text.Whitespace, Name.Label)), | |
| 107 # Character Literal | |
| 108 (r"""'(\\['"\\nrt]|\\x[0-7][0-9a-fA-F]|\\0""" | |
| 109 r"""|\\u\{[0-9a-fA-F]{1,6}\}|.)'""", | |
| 110 String.Char), | |
| 111 (r"""b'(\\['"\\nrt]|\\x[0-9a-fA-F]{2}|\\0""" | |
| 112 r"""|\\u\{[0-9a-fA-F]{1,6}\}|.)'""", | |
| 113 String.Char), | |
| 114 # Binary Literal | |
| 115 (r'0b[01_]+', Number.Bin, 'number_lit'), | |
| 116 # Octal Literal | |
| 117 (r'0o[0-7_]+', Number.Oct, 'number_lit'), | |
| 118 # Hexadecimal Literal | |
| 119 (r'0[xX][0-9a-fA-F_]+', Number.Hex, 'number_lit'), | |
| 120 # Decimal Literal | |
| 121 (r'[0-9][0-9_]*(\.[0-9_]+[eE][+\-]?[0-9_]+|' | |
| 122 r'\.[0-9_]*(?!\.)|[eE][+\-]?[0-9_]+)', Number.Float, | |
| 123 'number_lit'), | |
| 124 (r'[0-9][0-9_]*', Number.Integer, 'number_lit'), | |
| 125 # String Literal | |
| 126 (r'b"', String, 'bytestring'), | |
| 127 (r'"', String, 'string'), | |
| 128 (r'b?r(#*)".*?"\1', String), | |
| 129 | |
| 130 # Lifetime | |
| 131 (r"""'static""", Name.Builtin), | |
| 132 (r"""'[a-zA-Z_]\w*""", Name.Attribute), | |
| 133 | |
| 134 # Operators and Punctuation | |
| 135 (r'[{}()\[\],.;]', Punctuation), | |
| 136 (r'[+\-*/%&|<>^!~@=:?]', Operator), | |
| 137 | |
| 138 # Identifier | |
| 139 (r'[a-zA-Z_]\w*', Name), | |
| 140 | |
| 141 # Attributes | |
| 142 (r'#!?\[', Comment.Preproc, 'attribute['), | |
| 143 # Macros | |
| 144 (r'([A-Za-z_]\w*)(!)(\s*)([A-Za-z_]\w*)?(\s*)(\{)', | |
| 145 bygroups(Comment.Preproc, Punctuation, Whitespace, Name, | |
| 146 Whitespace, Punctuation), 'macro{'), | |
| 147 (r'([A-Za-z_]\w*)(!)(\s*)([A-Za-z_]\w*)?(\()', | |
| 148 bygroups(Comment.Preproc, Punctuation, Whitespace, Name, | |
| 149 Punctuation), 'macro('), | |
| 150 ], | |
| 151 'comment': [ | |
| 152 (r'[^*/]+', Comment.Multiline), | |
| 153 (r'/\*', Comment.Multiline, '#push'), | |
| 154 (r'\*/', Comment.Multiline, '#pop'), | |
| 155 (r'[*/]', Comment.Multiline), | |
| 156 ], | |
| 157 'doccomment': [ | |
| 158 (r'[^*/]+', String.Doc), | |
| 159 (r'/\*', String.Doc, '#push'), | |
| 160 (r'\*/', String.Doc, '#pop'), | |
| 161 (r'[*/]', String.Doc), | |
| 162 ], | |
| 163 'modname': [ | |
| 164 (r'\s+', Text), | |
| 165 (r'[a-zA-Z_]\w*', Name.Namespace, '#pop'), | |
| 166 default('#pop'), | |
| 167 ], | |
| 168 'funcname': [ | |
| 169 (r'\s+', Text), | |
| 170 (r'[a-zA-Z_]\w*', Name.Function, '#pop'), | |
| 171 default('#pop'), | |
| 172 ], | |
| 173 'typename': [ | |
| 174 (r'\s+', Text), | |
| 175 (r'&', Keyword.Pseudo), | |
| 176 builtin_types, | |
| 177 keyword_types, | |
| 178 (r'[a-zA-Z_]\w*', Name.Class, '#pop'), | |
| 179 default('#pop'), | |
| 180 ], | |
| 181 'number_lit': [ | |
| 182 (r'[ui](8|16|32|64|size)', Keyword, '#pop'), | |
| 183 (r'f(32|64)', Keyword, '#pop'), | |
| 184 default('#pop'), | |
| 185 ], | |
| 186 'string': [ | |
| 187 (r'"', String, '#pop'), | |
| 188 (r"""\\['"\\nrt]|\\x[0-7][0-9a-fA-F]|\\0""" | |
| 189 r"""|\\u\{[0-9a-fA-F]{1,6}\}""", String.Escape), | |
| 190 (r'[^\\"]+', String), | |
| 191 (r'\\', String), | |
| 192 ], | |
| 193 'bytestring': [ | |
| 194 (r"""\\x[89a-fA-F][0-9a-fA-F]""", String.Escape), | |
| 195 include('string'), | |
| 196 ], | |
| 197 'macro{': [ | |
| 198 (r'\{', Operator, '#push'), | |
| 199 (r'\}', Operator, '#pop'), | |
| 200 ], | |
| 201 'macro(': [ | |
| 202 (r'\(', Operator, '#push'), | |
| 203 (r'\)', Operator, '#pop'), | |
| 204 ], | |
| 205 'attribute_common': [ | |
| 206 (r'"', String, 'string'), | |
| 207 (r'\[', Comment.Preproc, 'attribute['), | |
| 208 (r'\(', Comment.Preproc, 'attribute('), | |
| 209 ], | |
| 210 'attribute[': [ | |
| 211 include('attribute_common'), | |
| 212 (r'\];?', Comment.Preproc, '#pop'), | |
| 213 (r'[^"\]]+', Comment.Preproc), | |
| 214 ], | |
| 215 'attribute(': [ | |
| 216 include('attribute_common'), | |
| 217 (r'\);?', Comment.Preproc, '#pop'), | |
| 218 (r'[^")]+', Comment.Preproc), | |
| 219 ], | |
| 220 } |
