diff options
Diffstat (limited to 'pygments/lexers/rust.py')
| -rw-r--r-- | pygments/lexers/rust.py | 112 |
1 files changed, 71 insertions, 41 deletions
diff --git a/pygments/lexers/rust.py b/pygments/lexers/rust.py index 5d1162b8..10097fba 100644 --- a/pygments/lexers/rust.py +++ b/pygments/lexers/rust.py @@ -5,7 +5,7 @@ Lexers for the Rust language. - :copyright: Copyright 2006-2015 by the Pygments team, see AUTHORS. + :copyright: Copyright 2006-2017 by the Pygments team, see AUTHORS. :license: BSD, see LICENSE for details. """ @@ -18,15 +18,44 @@ __all__ = ['RustLexer'] class RustLexer(RegexLexer): """ - Lexer for the Rust programming language (version 1.0). + Lexer for the Rust programming language (version 1.10). .. versionadded:: 1.6 """ name = 'Rust' filenames = ['*.rs', '*.rs.in'] - aliases = ['rust'] + aliases = ['rust', 'rs'] mimetypes = ['text/rust'] + keyword_types = ( + words(('u8', 'u16', 'u32', 'u64', 'i8', 'i16', 'i32', 'i64', + 'usize', 'isize', 'f32', 'f64', 'str', 'bool'), + suffix=r'\b'), + Keyword.Type) + + builtin_types = (words(( + # Reexported core operators + 'Copy', 'Send', 'Sized', 'Sync', + 'Drop', 'Fn', 'FnMut', 'FnOnce', + + # Reexported types and traits + 'Box', + 'ToOwned', + 'Clone', + 'PartialEq', 'PartialOrd', 'Eq', 'Ord', + 'AsRef', 'AsMut', 'Into', 'From', + 'Default', + 'Iterator', 'Extend', 'IntoIterator', + 'DoubleEndedIterator', 'ExactSizeIterator', + 'Option', + 'Some', 'None', + 'Result', + 'Ok', 'Err', + 'SliceConcatExt', + 'String', 'ToString', + 'Vec'), suffix=r'\b'), + Name.Builtin) + tokens = { 'root': [ # rust allows a file to start with a shebang, but if the first line @@ -49,50 +78,32 @@ class RustLexer(RegexLexer): (r"""\$([a-zA-Z_]\w*|\(,?|\),?|,?)""", Comment.Preproc), # Keywords (words(( - 'as', 'box', 'crate', 'do', 'else', 'enum', 'extern', # break and continue are in labels - 'fn', 'for', 'if', 'impl', 'in', 'loop', 'match', 'mut', 'priv', - 'proc', 'pub', 'ref', 'return', 'static', 'struct', - 'trait', 'true', 'type', 'unsafe', 'while'), suffix=r'\b'), + 'as', 'box', 'const', 'crate', 'else', 'extern', + 'for', 'if', 'impl', 'in', 'loop', 'match', 'move', + 'mut', 'pub', 'ref', 'return', 'static', 'super', + 'trait', 'unsafe', 'use', 'where', 'while'), suffix=r'\b'), Keyword), - (words(('alignof', 'be', 'const', 'offsetof', 'pure', 'sizeof', - 'typeof', 'once', 'unsized', 'yield'), suffix=r'\b'), + (words(('abstract', 'alignof', 'become', 'do', 'final', 'macro', + 'offsetof', 'override', 'priv', 'proc', 'pure', 'sizeof', + 'typeof', 'unsized', 'virtual', 'yield'), suffix=r'\b'), Keyword.Reserved), - (r'(mod|use)\b', Keyword.Namespace), (r'(true|false)\b', Keyword.Constant), + (r'mod\b', Keyword, 'modname'), (r'let\b', Keyword.Declaration), - (words(('u8', 'u16', 'u32', 'u64', 'i8', 'i16', 'i32', 'i64', 'usize', - 'isize', 'f32', 'f64', 'str', 'bool'), suffix=r'\b'), - Keyword.Type), + (r'fn\b', Keyword, 'funcname'), + (r'(struct|enum|type|union)\b', Keyword, 'typename'), + (r'(default)(\s+)(type|fn)\b', bygroups(Keyword, Text, Keyword)), + keyword_types, (r'self\b', Name.Builtin.Pseudo), # Prelude (taken from Rust’s src/libstd/prelude.rs) - (words(( - # Reexported core operators - 'Copy', 'Send', 'Sized', 'Sync', - 'Drop', 'Fn', 'FnMut', 'FnOnce', - - # Reexported functions - 'drop', - - # Reexported types and traits - 'Box', - 'ToOwned', - 'Clone', - 'PartialEq', 'PartialOrd', 'Eq', 'Ord', - 'AsRef', 'AsMut', 'Into', 'From', - 'Default', - 'Iterator', 'Extend', 'IntoIterator', - 'DoubleEndedIterator', 'ExactSizeIterator', - 'Option', - 'Some', 'None', - 'Result', - 'Ok', 'Err', - 'SliceConcatExt', - 'String', 'ToString', - 'Vec', - ), suffix=r'\b'), - Name.Builtin), + builtin_types, + # Path seperators, so types don't catch them. + (r'::\b', Text), + # Types in positions. + (r'(?::|->)', Text, 'typename'), # Labels - (r'(break|continue)(\s*)(\'[A-Za-z_]\w*)?', bygroups(Keyword, Text.Whitespace, Name.Label)), + (r'(break|continue)(\s*)(\'[A-Za-z_]\w*)?', + bygroups(Keyword, Text.Whitespace, Name.Label)), # Character Literal (r"""'(\\['"\\nrt]|\\x[0-7][0-9a-fA-F]|\\0""" r"""|\\u\{[0-9a-fA-F]{1,6}\}|.)'""", @@ -108,7 +119,8 @@ class RustLexer(RegexLexer): (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_]*(?!\.)|[eE][+\-]?[0-9_]+)', Number.Float, + 'number_lit'), (r'[0-9][0-9_]*', Number.Integer, 'number_lit'), # String Literal (r'b"', String, 'bytestring'), @@ -148,6 +160,24 @@ class RustLexer(RegexLexer): (r'\*/', String.Doc, '#pop'), (r'[*/]', String.Doc), ], + 'modname': [ + (r'\s+', Text), + (r'[a-zA-Z_]\w*', Name.Namespace, '#pop'), + default('#pop'), + ], + 'funcname': [ + (r'\s+', Text), + (r'[a-zA-Z_]\w*', Name.Function, '#pop'), + default('#pop'), + ], + 'typename': [ + (r'\s+', Text), + (r'&', Keyword.Pseudo), + builtin_types, + keyword_types, + (r'[a-zA-Z_]\w*', Name.Class, '#pop'), + default('#pop'), + ], 'number_lit': [ (r'[ui](8|16|32|64|size)', Keyword, '#pop'), (r'f(32|64)', Keyword, '#pop'), |