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"""
Pygments regex lexer tests
~~~~~~~~~~~~~~~~~~~~~~~~~~
:copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import pytest
from pygments.token import Text, Whitespace
from pygments.lexer import RegexLexer, default
@pytest.fixture(scope='module')
def lexer():
yield MyLexer()
class MyLexer(RegexLexer):
"""Test tuple state transitions including #pop."""
tokens = {
'root': [
('a', Text.Root, 'rag'),
('e', Text.Root),
('#', Text.Root, '#pop'),
('@', Text.Root, ('#pop', '#pop')),
default(('beer', 'beer'))
],
'beer': [
('d', Text.Beer, ('#pop', '#pop')),
],
'rag': [
('b', Text.Rag, '#push'),
('c', Text.Rag, ('#pop', 'beer')),
],
}
def test_tuple(lexer):
toks = list(lexer.get_tokens_unprocessed('abcde'))
assert toks == [
(0, Text.Root, 'a'), (1, Text.Rag, 'b'), (2, Text.Rag, 'c'),
(3, Text.Beer, 'd'), (4, Text.Root, 'e')]
def test_multiline(lexer):
toks = list(lexer.get_tokens_unprocessed('a\ne'))
assert toks == [
(0, Text.Root, 'a'), (1, Whitespace, '\n'), (2, Text.Root, 'e')]
def test_default(lexer):
toks = list(lexer.get_tokens_unprocessed('d'))
assert toks == [(0, Text.Beer, 'd')]
def test_pop_empty_regular(lexer):
toks = list(lexer.get_tokens_unprocessed('#e'))
assert toks == [(0, Text.Root, '#'), (1, Text.Root, 'e')]
def test_pop_empty_tuple(lexer):
toks = list(lexer.get_tokens_unprocessed('@e'))
assert toks == [(0, Text.Root, '@'), (1, Text.Root, 'e')]
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