167 lines
7 KiB
Python
167 lines
7 KiB
Python
# -*- coding: utf-8 -*-
|
|
"""
|
|
pygments.lexers.rust
|
|
~~~~~~~~~~~~~~~~~~~~
|
|
|
|
Lexers for the Rust language.
|
|
|
|
:copyright: Copyright 2006-2014 by the Pygments team, see AUTHORS.
|
|
:license: BSD, see LICENSE for details.
|
|
"""
|
|
|
|
from pygments.lexer import RegexLexer, include, bygroups, words, default
|
|
from pygments.token import Comment, Operator, Keyword, Name, String, \
|
|
Number, Punctuation, Whitespace
|
|
|
|
__all__ = ['RustLexer']
|
|
|
|
|
|
class RustLexer(RegexLexer):
|
|
"""
|
|
Lexer for the Rust programming language (version 0.9).
|
|
|
|
.. versionadded:: 1.6
|
|
"""
|
|
name = 'Rust'
|
|
filenames = ['*.rs']
|
|
aliases = ['rust']
|
|
mimetypes = ['text/x-rustsrc']
|
|
|
|
tokens = {
|
|
'root': [
|
|
# Whitespace and Comments
|
|
(r'\n', Whitespace),
|
|
(r'\s+', Whitespace),
|
|
(r'//[/!](.*?)\n', Comment.Doc),
|
|
(r'//(.*?)\n', Comment.Single),
|
|
(r'/\*', Comment.Multiline, 'comment'),
|
|
|
|
# Lifetime
|
|
(r"""'[a-zA-Z_]\w*""", Name.Label),
|
|
# Macro parameters
|
|
(r"""\$([a-zA-Z_]\w*|\(,?|\),?|,?)""", Comment.Preproc),
|
|
# Keywords
|
|
(words((
|
|
'as', 'box', 'break', 'continue', 'do', 'else', 'enum', 'extern',
|
|
'fn', 'for', 'if', 'impl', 'in', 'loop', 'match', 'mut', 'priv',
|
|
'proc', 'pub', 'ref', 'return', 'static', '\'static', 'struct',
|
|
'trait', 'true', 'type', 'unsafe', 'while'), suffix=r'\b'),
|
|
Keyword),
|
|
(words(('alignof', 'be', 'const', 'offsetof', 'pure', 'sizeof',
|
|
'typeof', 'once', 'unsized', 'yield'), suffix=r'\b'),
|
|
Keyword.Reserved),
|
|
(r'(mod|use)\b', Keyword.Namespace),
|
|
(r'(true|false)\b', Keyword.Constant),
|
|
(r'let\b', Keyword.Declaration),
|
|
(words(('u8', 'u16', 'u32', 'u64', 'i8', 'i16', 'i32', 'i64', 'uint',
|
|
'int', 'f32', 'f64', 'str', 'bool'), suffix=r'\b'),
|
|
Keyword.Type),
|
|
(r'self\b', Name.Builtin.Pseudo),
|
|
# Prelude
|
|
(words((
|
|
'Freeze', 'Pod', 'Send', 'Sized', 'Add', 'Sub', 'Mul', 'Div', 'Rem', 'Neg', 'Not', 'BitAnd',
|
|
'BitOr', 'BitXor', 'Drop', 'Shl', 'Shr', 'Index', 'Option', 'Some', 'None', 'Result',
|
|
'Ok', 'Err', 'from_str', 'range', 'print', 'println', 'Any', 'AnyOwnExt', 'AnyRefExt',
|
|
'AnyMutRefExt', 'Ascii', 'AsciiCast', 'OnwedAsciiCast', 'AsciiStr',
|
|
'IntoBytes', 'Bool', 'ToCStr', 'Char', 'Clone', 'DeepClone', 'Eq', 'ApproxEq',
|
|
'Ord', 'TotalEq', 'Ordering', 'Less', 'Equal', 'Greater', 'Equiv', 'Container',
|
|
'Mutable', 'Map', 'MutableMap', 'Set', 'MutableSet', 'Default', 'FromStr',
|
|
'Hash', 'FromIterator', 'Extendable', 'Iterator', 'DoubleEndedIterator',
|
|
'RandomAccessIterator', 'CloneableIterator', 'OrdIterator',
|
|
'MutableDoubleEndedIterator', 'ExactSize', 'Times', 'Algebraic',
|
|
'Trigonometric', 'Exponential', 'Hyperbolic', 'Bitwise', 'BitCount',
|
|
'Bounded', 'Integer', 'Fractional', 'Real', 'RealExt', 'Num', 'NumCast',
|
|
'CheckedAdd', 'CheckedSub', 'CheckedMul', 'Orderable', 'Signed',
|
|
'Unsigned', 'Round', 'Primitive', 'Int', 'Float', 'ToStrRadix',
|
|
'ToPrimitive', 'FromPrimitive', 'GenericPath', 'Path', 'PosixPath',
|
|
'WindowsPath', 'RawPtr', 'Buffer', 'Writer', 'Reader', 'Seek',
|
|
'SendStr', 'SendStrOwned', 'SendStrStatic', 'IntoSendStr', 'Str',
|
|
'StrVector', 'StrSlice', 'OwnedStr', 'IterBytes', 'ToStr', 'IntoStr',
|
|
'CopyableTuple', 'ImmutableTuple', 'ImmutableEqVector', 'ImmutableTotalOrdVector',
|
|
'ImmutableCopyableVector', 'OwnedVector', 'OwnedCopyableVector',
|
|
'OwnedEqVector', 'MutableVector', 'MutableTotalOrdVector',
|
|
'Vector', 'VectorVector', 'CopyableVector', 'ImmutableVector',
|
|
'Port', 'Chan', 'SharedChan', 'spawn', 'drop'), suffix=r'\b'),
|
|
Name.Builtin),
|
|
(r'(ImmutableTuple\d+|Tuple\d+)\b', Name.Builtin),
|
|
# Borrowed pointer
|
|
(r'(&)(\'[A-Za-z_]\w*)?', bygroups(Operator, Name)),
|
|
# Labels
|
|
(r'\'[A-Za-z_]\w*:', Name.Label),
|
|
# Character Literal
|
|
(r"""'(\\['"\\nrt]|\\x[0-9a-fA-F]{2}|\\[0-7]{1,3}"""
|
|
r"""|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}|.)'""",
|
|
String.Char),
|
|
# Binary Literal
|
|
(r'0b[01_]+', Number.Bin, 'number_lit'),
|
|
# Octal Literal
|
|
(r'0o[0-7_]+', Number.Oct, 'number_lit'),
|
|
# Hexadecimal Literal
|
|
(r'0[xX][0-9a-fA-F_]+', Number.Hex, 'number_lit'),
|
|
# Decimal Literal
|
|
(r'[0-9][0-9_]*(\.[0-9_]+[eE][+\-]?[0-9_]+|'
|
|
r'\.[0-9_]*|[eE][+\-]?[0-9_]+)', Number.Float, 'number_lit'),
|
|
(r'[0-9][0-9_]*', Number.Integer, 'number_lit'),
|
|
# String Literal
|
|
(r'"', String, 'string'),
|
|
(r'r(#*)".*?"\1', String.Raw),
|
|
|
|
# Operators and Punctuation
|
|
(r'[{}()\[\],.;]', Punctuation),
|
|
(r'[+\-*/%&|<>^!~@=:?]', Operator),
|
|
|
|
# Identifier
|
|
(r'[a-zA-Z_]\w*', Name),
|
|
|
|
# Attributes
|
|
(r'#!?\[', Comment.Preproc, 'attribute['),
|
|
# Macros
|
|
(r'([A-Za-z_]\w*)(!)(\s*)([A-Za-z_]\w*)?(\s*)(\{)',
|
|
bygroups(Comment.Preproc, Punctuation, Whitespace, Name,
|
|
Whitespace, Punctuation), 'macro{'),
|
|
(r'([A-Za-z_]\w*)(!)(\s*)([A-Za-z_]\w*)?(\()',
|
|
bygroups(Comment.Preproc, Punctuation, Whitespace, Name,
|
|
Punctuation), 'macro('),
|
|
],
|
|
'comment': [
|
|
(r'[^*/]+', Comment.Multiline),
|
|
(r'/\*', Comment.Multiline, '#push'),
|
|
(r'\*/', Comment.Multiline, '#pop'),
|
|
(r'[*/]', Comment.Multiline),
|
|
],
|
|
'number_lit': [
|
|
(r'[ui](8|16|32|64)', Keyword, '#pop'),
|
|
(r'f(32|64)', Keyword, '#pop'),
|
|
default('#pop'),
|
|
],
|
|
'string': [
|
|
(r'"', String, '#pop'),
|
|
(r"""\\['"\\nrt]|\\x[0-9a-fA-F]{2}|\\[0-7]{1,3}"""
|
|
r"""|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}""", String.Escape),
|
|
(r'[^\\"]+', String),
|
|
(r'\\', String),
|
|
],
|
|
'macro{': [
|
|
(r'\{', Operator, '#push'),
|
|
(r'\}', Operator, '#pop'),
|
|
],
|
|
'macro(': [
|
|
(r'\(', Operator, '#push'),
|
|
(r'\)', Operator, '#pop'),
|
|
],
|
|
'attribute_common': [
|
|
(r'"', String, 'string'),
|
|
(r'\[', Comment.Preproc, 'attribute['),
|
|
(r'\(', Comment.Preproc, 'attribute('),
|
|
],
|
|
'attribute[': [
|
|
include('attribute_common'),
|
|
(r'\];?', Comment.Preproc, '#pop'),
|
|
(r'[^"\]]+', Comment.Preproc),
|
|
],
|
|
'attribute(': [
|
|
include('attribute_common'),
|
|
(r'\);?', Comment.Preproc, '#pop'),
|
|
(r'[^")]+', Comment.Preproc),
|
|
],
|
|
}
|