You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
118 lines
3.5 KiB
118 lines
3.5 KiB
"""
|
|
pygments.lexers.arrow
|
|
~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
Lexer for Arrow.
|
|
|
|
:copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS.
|
|
:license: BSD, see LICENSE for details.
|
|
"""
|
|
|
|
from pygments.lexer import RegexLexer, bygroups, default, include
|
|
from pygments.token import Text, Operator, Keyword, Punctuation, Name, \
|
|
String, Number, Whitespace
|
|
|
|
__all__ = ['ArrowLexer']
|
|
|
|
TYPES = r'\b(int|bool|char)((?:\[\])*)(?=\s+)'
|
|
IDENT = r'([a-zA-Z_][a-zA-Z0-9_]*)'
|
|
DECL = TYPES + r'(\s+)' + IDENT
|
|
|
|
|
|
class ArrowLexer(RegexLexer):
|
|
"""
|
|
Lexer for Arrow
|
|
|
|
.. versionadded:: 2.7
|
|
"""
|
|
|
|
name = 'Arrow'
|
|
url = 'https://pypi.org/project/py-arrow-lang/'
|
|
aliases = ['arrow']
|
|
filenames = ['*.arw']
|
|
|
|
tokens = {
|
|
'root': [
|
|
(r'\s+', Whitespace),
|
|
(r'^[|\s]+', Punctuation),
|
|
include('blocks'),
|
|
include('statements'),
|
|
include('expressions'),
|
|
],
|
|
'blocks': [
|
|
(r'(function)(\n+)(/-->)(\s*)' +
|
|
DECL + # 4 groups
|
|
r'(\()', bygroups(
|
|
Keyword.Reserved, Whitespace, Punctuation,
|
|
Whitespace, Keyword.Type, Punctuation, Whitespace,
|
|
Name.Function, Punctuation
|
|
), 'fparams'),
|
|
(r'/-->$|\\-->$|/--<|\\--<|\^', Punctuation),
|
|
],
|
|
'statements': [
|
|
(DECL, bygroups(Keyword.Type, Punctuation, Text, Name.Variable)),
|
|
(r'\[', Punctuation, 'index'),
|
|
(r'=', Operator),
|
|
(r'require|main', Keyword.Reserved),
|
|
(r'print', Keyword.Reserved, 'print'),
|
|
],
|
|
'expressions': [
|
|
(r'\s+', Whitespace),
|
|
(r'[0-9]+', Number.Integer),
|
|
(r'true|false', Keyword.Constant),
|
|
(r"'", String.Char, 'char'),
|
|
(r'"', String.Double, 'string'),
|
|
(r'\{', Punctuation, 'array'),
|
|
(r'==|!=|<|>|\+|-|\*|/|%', Operator),
|
|
(r'and|or|not|length', Operator.Word),
|
|
(r'(input)(\s+)(int|char\[\])', bygroups(
|
|
Keyword.Reserved, Whitespace, Keyword.Type
|
|
)),
|
|
(IDENT + r'(\()', bygroups(
|
|
Name.Function, Punctuation
|
|
), 'fargs'),
|
|
(IDENT, Name.Variable),
|
|
(r'\[', Punctuation, 'index'),
|
|
(r'\(', Punctuation, 'expressions'),
|
|
(r'\)', Punctuation, '#pop'),
|
|
],
|
|
'print': [
|
|
include('expressions'),
|
|
(r',', Punctuation),
|
|
default('#pop'),
|
|
],
|
|
'fparams': [
|
|
(DECL, bygroups(Keyword.Type, Punctuation, Whitespace, Name.Variable)),
|
|
(r',', Punctuation),
|
|
(r'\)', Punctuation, '#pop'),
|
|
],
|
|
'escape': [
|
|
(r'\\(["\\/abfnrtv]|[0-9]{1,3}|x[0-9a-fA-F]{2}|u[0-9a-fA-F]{4})',
|
|
String.Escape),
|
|
],
|
|
'char': [
|
|
(r"'", String.Char, '#pop'),
|
|
include('escape'),
|
|
(r"[^'\\]", String.Char),
|
|
],
|
|
'string': [
|
|
(r'"', String.Double, '#pop'),
|
|
include('escape'),
|
|
(r'[^"\\]+', String.Double),
|
|
],
|
|
'array': [
|
|
include('expressions'),
|
|
(r'\}', Punctuation, '#pop'),
|
|
(r',', Punctuation),
|
|
],
|
|
'fargs': [
|
|
include('expressions'),
|
|
(r'\)', Punctuation, '#pop'),
|
|
(r',', Punctuation),
|
|
],
|
|
'index': [
|
|
include('expressions'),
|
|
(r'\]', Punctuation, '#pop'),
|
|
],
|
|
}
|