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# -*- coding: utf-8 -*-
"""
Pygments regex lexer tests
~~~~~~~~~~~~~~~~~~~~~~~~~~
:copyright: Copyright 2006-2014 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import unittest
from pygments.token import Text
from pygments.lexer import RegexLexer
from pygments.lexer import bygroups
from pygments.lexer import default
class TestLexer(RegexLexer):
"""Test tuple state transitions including #pop."""
tokens = {
'root': [
('a', Text.Root, 'rag'),
('e', Text.Root),
default(('beer', 'beer'))
],
'beer': [
('d', Text.Beer, ('#pop', '#pop')),
],
'rag': [
('b', Text.Rag, '#push'),
('c', Text.Rag, ('#pop', 'beer')),
],
}
class TupleTransTest(unittest.TestCase):
def test(self):
lx = TestLexer()
toks = list(lx.get_tokens_unprocessed('abcde'))
self.assertEqual(toks,
[(0, Text.Root, 'a'), (1, Text.Rag, 'b'), (2, Text.Rag, 'c'),
(3, Text.Beer, 'd'), (4, Text.Root, 'e')])
def test_multiline(self):
lx = TestLexer()
toks = list(lx.get_tokens_unprocessed('a\ne'))
self.assertEqual(toks,
[(0, Text.Root, 'a'), (1, Text, u'\n'),
(2, Text.Root, 'e')])
def test_default(self):
lx = TestLexer()
toks = list(lx.get_tokens_unprocessed('d'))
self.assertEqual(toks, [(0, Text.Beer, 'd')])
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