You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
125 lines
3.1 KiB
Python
125 lines
3.1 KiB
Python
2 years ago
|
"""
|
||
|
|
pygments.lexers.elm
|
||
|
|
~~~~~~~~~~~~~~~~~~~
|
||
|
|
|
||
|
|
Lexer for the Elm programming language.
|
||
|
|
|
||
|
|
:copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS.
|
||
|
|
:license: BSD, see LICENSE for details.
|
||
|
|
"""
|
||
|
|
|
||
|
|
from pygments.lexer import RegexLexer, words, include, bygroups
|
||
|
|
from pygments.token import Comment, Keyword, Name, Number, Punctuation, String, \
|
||
|
|
Text, Whitespace
|
||
|
|
|
||
|
|
__all__ = ['ElmLexer']
|
||
|
|
|
||
|
|
|
||
|
|
class ElmLexer(RegexLexer):
|
||
|
|
"""
|
||
|
|
For Elm source code.
|
||
|
|
|
||
|
|
.. versionadded:: 2.1
|
||
|
|
"""
|
||
|
|
|
||
|
|
name = 'Elm'
|
||
|
|
url = 'http://elm-lang.org/'
|
||
|
|
aliases = ['elm']
|
||
|
|
filenames = ['*.elm']
|
||
|
|
mimetypes = ['text/x-elm']
|
||
|
|
|
||
|
|
validName = r'[a-z_][a-zA-Z0-9_\']*'
|
||
|
|
|
||
|
|
specialName = r'^main '
|
||
|
|
|
||
|
|
builtinOps = (
|
||
|
|
'~', '||', '|>', '|', '`', '^', '\\', '\'', '>>', '>=', '>', '==',
|
||
|
|
'=', '<~', '<|', '<=', '<<', '<-', '<', '::', ':', '/=', '//', '/',
|
||
|
|
'..', '.', '->', '-', '++', '+', '*', '&&', '%',
|
||
|
|
)
|
||
|
|
|
||
|
|
reservedWords = words((
|
||
|
|
'alias', 'as', 'case', 'else', 'if', 'import', 'in',
|
||
|
|
'let', 'module', 'of', 'port', 'then', 'type', 'where',
|
||
|
|
), suffix=r'\b')
|
||
|
|
|
||
|
|
tokens = {
|
||
|
|
'root': [
|
||
|
|
|
||
|
|
# Comments
|
||
|
|
(r'\{-', Comment.Multiline, 'comment'),
|
||
|
|
(r'--.*', Comment.Single),
|
||
|
|
|
||
|
|
# Whitespace
|
||
|
|
(r'\s+', Whitespace),
|
||
|
|
|
||
|
|
# Strings
|
||
|
|
(r'"', String, 'doublequote'),
|
||
|
|
|
||
|
|
# Modules
|
||
|
|
(r'^(\s*)(module)(\s*)', bygroups(Whitespace, Keyword.Namespace,
|
||
|
|
Whitespace), 'imports'),
|
||
|
|
|
||
|
|
# Imports
|
||
|
|
(r'^(\s*)(import)(\s*)', bygroups(Whitespace, Keyword.Namespace,
|
||
|
|
Whitespace), 'imports'),
|
||
|
|
|
||
|
|
# Shaders
|
||
|
|
(r'\[glsl\|.*', Name.Entity, 'shader'),
|
||
|
|
|
||
|
|
# Keywords
|
||
|
|
(reservedWords, Keyword.Reserved),
|
||
|
|
|
||
|
|
# Types
|
||
|
|
(r'[A-Z][a-zA-Z0-9_]*', Keyword.Type),
|
||
|
|
|
||
|
|
# Main
|
||
|
|
(specialName, Keyword.Reserved),
|
||
|
|
|
||
|
|
# Prefix Operators
|
||
|
|
(words((builtinOps), prefix=r'\(', suffix=r'\)'), Name.Function),
|
||
|
|
|
||
|
|
# Infix Operators
|
||
|
|
(words(builtinOps), Name.Function),
|
||
|
|
|
||
|
|
# Numbers
|
||
|
|
include('numbers'),
|
||
|
|
|
||
|
|
# Variable Names
|
||
|
|
(validName, Name.Variable),
|
||
|
|
|
||
|
|
# Parens
|
||
|
|
(r'[,()\[\]{}]', Punctuation),
|
||
|
|
|
||
|
|
],
|
||
|
|
|
||
|
|
'comment': [
|
||
|
|
(r'-(?!\})', Comment.Multiline),
|
||
|
|
(r'\{-', Comment.Multiline, 'comment'),
|
||
|
|
(r'[^-}]', Comment.Multiline),
|
||
|
|
(r'-\}', Comment.Multiline, '#pop'),
|
||
|
|
],
|
||
|
|
|
||
|
|
'doublequote': [
|
||
|
|
(r'\\u[0-9a-fA-F]{4}', String.Escape),
|
||
|
|
(r'\\[nrfvb\\"]', String.Escape),
|
||
|
|
(r'[^"]', String),
|
||
|
|
(r'"', String, '#pop'),
|
||
|
|
],
|
||
|
|
|
||
|
|
'imports': [
|
||
|
|
(r'\w+(\.\w+)*', Name.Class, '#pop'),
|
||
|
|
],
|
||
|
|
|
||
|
|
'numbers': [
|
||
|
|
(r'_?\d+\.(?=\d+)', Number.Float),
|
||
|
|
(r'_?\d+', Number.Integer),
|
||
|
|
],
|
||
|
|
|
||
|
|
'shader': [
|
||
|
|
(r'\|(?!\])', Name.Entity),
|
||
|
|
(r'\|\]', Name.Entity, '#pop'),
|
||
|
|
(r'(.*)(\n)', bygroups(Name.Entity, Whitespace)),
|
||
|
|
],
|
||
|
|
}
|