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"""
pygments.lexers.berry
~~~~~~~~~~~~~~~~~~~~~
Lexer for Berry.
:copyright: Copyright 2006-2023 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, Whitespace, Operator, Keyword, Name, \
String, Number, Punctuation
__all__ = ['BerryLexer']
class BerryLexer(RegexLexer):
"""
For `berry <http://github.com/berry-lang/berry>`_ source code.
.. versionadded:: 2.12.0
"""
name = 'Berry'
aliases = ['berry', 'be']
filenames = ['*.be']
mimetypes = ['text/x-berry', 'application/x-berry']
_name = r'\b[^\W\d]\w*'
tokens = {
'root': [
include('whitespace'),
include('numbers'),
include('keywords'),
(rf'(def)(\s+)({_name})',
bygroups(Keyword.Declaration, Whitespace, Name.Function)),
(rf'\b(class)(\s+)({_name})',
bygroups(Keyword.Declaration, Whitespace, Name.Class)),
(rf'\b(import)(\s+)({_name})',
bygroups(Keyword.Namespace, Whitespace, Name.Namespace)),
include('expr')
],
'expr': [
(r'[^\S\n]+', Whitespace),
(r'\.\.|[~!%^&*+=|?:<>/-]', Operator),
(r'[(){}\[\],.;]', Punctuation),
include('controls'),
include('builtins'),
include('funccall'),
include('member'),
include('name'),
include('strings')
],
'whitespace': [
(r'\s+', Whitespace),
(r'#-(.|\n)*?-#', Comment.Multiline),
(r'#.*?$', Comment.Single)
],
'keywords': [
(words((
'as', 'break', 'continue', 'import', 'static', 'self', 'super'),
suffix=r'\b'), Keyword.Reserved),
(r'(true|false|nil)\b', Keyword.Constant),
(r'(var|def)\b', Keyword.Declaration)
],
'controls': [
(words((
'if', 'elif', 'else', 'for', 'while', 'do', 'end', 'break',
'continue', 'return', 'try', 'except', 'raise'),
suffix=r'\b'), Keyword)
],
'builtins': [
(words((
'assert', 'bool', 'input', 'classname', 'classof', 'number', 'real',
'bytes', 'compile', 'map', 'list', 'int', 'isinstance', 'print',
'range', 'str', 'super', 'module', 'size', 'issubclass', 'open',
'file', 'type', 'call'),
suffix=r'\b'), Name.Builtin)
],
'numbers': [
(r'0[xX][a-fA-F0-9]+', Number.Hex),
(r'-?\d+', Number.Integer),
(r'(-?\d+\.?|\.\d)\d*([eE][+-]?\d+)?', Number.Float)
],
'name': [
(_name, Name)
],
'funccall': [
(rf'{_name}(?=\s*\()', Name.Function, '#pop')
],
'member': [
(rf'(?<=\.){_name}\b(?!\()', Name.Attribute, '#pop')
],
'strings': [
(r'"([^\\]|\\.)*?"', String.Double, '#pop'),
(r'\'([^\\]|\\.)*?\'', String.Single, '#pop')
]
}
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