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tests.py
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"""
The approach consists of building regex patterns using the python classes
then serializing to a raw regex string.
The resulting regex string is parsed by Eacc and a similar structure is built
using the same previous classes it is serialized to a raw regex then checked against the
initial regex string.
There are tests that build the pythonic structure from a raw string
then it is serialized back and tested against the initial regex string.
This approach should be enough to make sure both crocs regex classes and
regex grammar are working.
When a regex AST is built it is serialized, possible matches are generated
and matched against its serialized regex string. It makes sure that
the serialized regex string is valid.
Some generated hits for patterns may be too long and slow down the tests considerably.
The special regex operators are escaped when testing the regex parser mechanisms. It is
necessary because crocs classes that map to regex operators are escaping regex operators
in strings.
regstr = r'[abc*]'
yregex = xmake(regstr)
# Evaluate to False.
yregex.to_regex() != regstr
# Evaluate to True.
yregex.to_regex() == r'[abc\*]'
The reason consists of it not existing escape class in crocs classes to map regex escape.
It automatically escapes all strings that contain regex operators.
It is necessary to escape yourself raw regex strings even inside character sets to make
sure them are in fact equal to the resulting pythonic yregex that comes from xmake.
The tests also check the serialization of the yregex structure to raw python code. The approach
consists of using the BasicRegex.mkclone method and BasicRegex.mkcode method. The structure
is serialized to raw code and executed then it is serialized again and tested against the initial
raw regex.
"""
import unittest
from crocs.regex import Include, Exclude, Any, OneOrZero, \
OneOrMore, Group, ConsumeNext, ConsumeBack, X, Pattern, Seq, Repeat,\
NamedGroup, ZeroOrMore, Caret, Dollar
from crocs.xparser import xmake
from eacc.lexer import Lexer, LexError
import re
class TestInclude(unittest.TestCase):
def test0(self):
e = Include('a', 'b', 'c')
regstr = e.mkregex()
self.assertEqual(regstr, '[abc]')
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test1(self):
expr0 = Include('x', 'y')
expr1 = Include('m', 'n')
expr2 = Any(expr0, expr1)
regstr = expr2.mkregex()
self.assertEqual(regstr, '[xy]|[mn]')
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test2(self):
expr0 = Include('x', 'y')
expr1 = Include('m', 'n')
expr2 = Any(expr0, expr1)
expr3 = OneOrMore(Group(expr2))
regstr = expr3.mkregex()
self.assertEqual(regstr, '([xy]|[mn])+')
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test3(self):
expr0 = Include('x', 'y')
expr1 = Include('m', 'n')
expr2 = Include('a', Seq('0', '9'), 'b')
expr3 = Any(expr0, expr1, expr2)
expr4 = OneOrMore(Group(expr3))
regstr = expr4.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test4(self):
expr0 = Include('%', '#')
expr1 = Include('c', Seq('a', 'd'), Seq('0', '5'), 'd')
expr2 = Include('a', Seq('0', '9'), 'b')
expr3 = Any(expr0, expr1, expr2)
expr4 = Repeat(Group(expr3), 3, 8)
regstr = expr4.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test5(self):
expr0 = Include('a', 'b')
expr1 = Include(Seq('a', 'z'))
expr2 = Group(Any(expr0, expr1))
regstr = expr2.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test6(self):
expr0 = Include('a', 'b')
expr1 = NamedGroup('alpha', Any(expr0, 'bar'))
expr2 = Any(expr0, expr1)
regstr = expr2.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test7(self):
expr0 = Include(Seq('a', 'z'))
expr1 = Include(Seq('0', '9'))
expr2 = Group(expr0, expr1)
expr3 = Group(expr1, expr0)
expr4 = Group(Any(expr2, expr3))
regstr = expr4.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test8(self):
expr0 = Include(Seq('a', 'z'))
expr1 = Group('0', expr0, '9')
expr2 = OneOrMore(expr1)
expr3 = Group(expr2, 'm', expr1)
expr4 = Repeat(expr3, 2, 4)
regstr = expr4.mkregex()
expr4.test()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test9(self):
regstr = r'[a-z]+[0-9a-z]?(abc)\1'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test10(self):
regstr = r'([a-z]+[0-9a-z])?(abc)'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test11(self):
regstr = r'(([a-z]+[0-9a-z])(abc)\2)\2emm\3'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test12(self):
regstr = r'[a-z]?'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test13(self):
regstr = r'([a-z]0)?'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test14(self):
regstr = r'(((((([0-9]+))))))\3\1\2'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test15(self):
regstr = r'(([0-9]x)?([a-z]y))?mnc([a-z\&%])+'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test16(self):
regstr = r'([a-z\&\*\$])+'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test17(self):
regstr = r'[a-z\*]'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test18(self):
regstr = r'(((((([0-9]))\5))))\3\1\2'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
class TestExclude(unittest.TestCase):
def test0(self):
e = Exclude(Seq('a', 'z'))
regstr = e.mkregex()
self.assertEqual(regstr, '[^a-z]')
yregex = xmake(regstr)
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test1(self):
expr0 = Include(Seq('a', 'z'))
expr1 = Exclude(Seq('1', '9'))
expr2 = Group(expr0, expr1)
expr3 = Pattern(expr0, expr1, expr2, expr2, expr2)
regstr = expr3.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test2(self):
expr0 = Exclude(Seq('a', 'z'))
expr1 = OneOrMore(expr0)
expr2 = Group(expr0, expr1)
expr3 = Group(expr2, expr2, expr2)
expr4 = Group(expr3, expr3, expr3)
regstr = expr4.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test3(self):
expr0 = Exclude(Seq('a', 'z'))
expr1 = OneOrMore(expr0)
expr2 = Group(expr0, expr1)
expr3 = Group(expr2, expr2, expr2)
expr4 = Group(expr3, expr3, expr3)
regstr = expr4.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test4(self):
expr0 = Exclude(Seq('a', 'z'))
expr1 = OneOrMore(expr0)
expr2 = Group(expr0, expr1)
expr3 = Group(expr2, expr2, expr2)
expr4 = Any(expr2, expr3)
regstr = expr4.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test5(self):
regstr = r'[^0-9]+([^abcd]?x([^eeee])?\2)'
yregex = xmake(regstr)
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test6(self):
regstr = r'[^0-9]+([^abcd]?x([^ee])+\2)'
yregex = xmake(regstr)
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test7(self):
regstr = r'[^0-9]+([^abcd]?x([^\*\*])\2)'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test8(self):
regstr = r'[abc\*]+'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test9(self):
regstr = r'[\[abc\*]'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test10(self):
regstr = r'[\]abc\*]'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test11(self):
regstr = r'([\]abc\*])+\**[^\*\&\&\[\]]+'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
class TestAny(unittest.TestCase):
def test0(self):
expr0 = Exclude(Seq('0', '9'))
expr1 = Include(Seq('a', 'b'))
expr2 = Any(expr0, expr1)
expr3 = Pattern(Group(expr2), Group(expr2))
regstr = expr3.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test1(self):
expr0 = Exclude(Seq('0', '9'))
expr1 = OneOrMore(expr0)
expr2 = Any('a', expr0, expr1, 'b')
expr3 = Pattern(Group(expr2), Group(expr2))
regstr = expr3.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test2(self):
expr0 = Include(Seq('0', '9'))
expr1 = OneOrMore(expr0)
expr2 = Group(expr0, expr1)
expr3 = Any(expr0, expr1, expr2)
regstr = expr3.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test3(self):
expr0 = Include(Seq('0', '9'))
expr1 = OneOrMore(expr0)
expr2 = Group(expr0, expr1)
expr3 = Any(expr0, expr1, expr2)
expr4 = Any(expr3, expr2, expr1, expr0)
regstr = expr4.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test4(self):
expr0 = Include(Seq('0', '9'))
expr1 = OneOrMore(expr0)
expr2 = Group(expr0, expr1)
expr3 = Group(expr2, expr2)
expr4 = Any('b', expr3, 'a')
regstr = expr4.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test5(self):
expr0 = Include(Seq('0', '9'))
expr1 = X()
expr2 = Group(expr0, expr1)
expr3 = OneOrMore(expr2)
expr4 = Any(expr0, expr1, expr2,expr2, expr3)
expr5 = Group(expr4, expr3, expr2, 'a', 'b', expr3)
expr6 = Any(expr0, expr1, expr2, expr3, expr4, expr5)
expr7 = Pattern(expr0, expr2, expr3, Group(expr4), expr5, Group(expr6),
'somestring', Group(expr6), Group(expr6))
# The regex.
# [0-9]([0-9].)\1+[0-9]|.|\1|\1|\1+([0-9]|.|\1|\1|\1+\1+\1ab\1+)[0-9]|.\
# |\1|\1+|[0-9]|.|\1|\1|\1+|\2Fuinho\ Violento[0-9]|.|\1|\1+|[0-9]|.\
# |\1|\1|\1+|\2[0-9]|.|\1|\1+|[0-9]|.|\1|\1|\1+|\2
regstr = expr7.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test6(self):
regstr = r'(a{0,1})|(b)|\1|\2'
yregex = xmake(regstr)
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test7(self):
regstr = r'((i(abc+)(cde{1,12})|(abc)|(iof+)+|cde+))(\*eee)+'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test8(self):
regstr = r'a{0,0}|b{1,1}'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test8(self):
regstr = r'a{0,0}|b{0,0}'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test9(self):
regstr = r'a{0,}|b{0,}'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), r'a{0,}|b{0,}')
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), r'a{0,}|b{0,}')
def test10(self):
regstr = r'(a{0,}|b{0,})|(abc)|c+'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test11(self):
expr0 = Any('abc', 'efg')
expr1 = Repeat(Group(expr0), 1, 4)
regstr = expr1.mkregex()
self.assertEqual(regstr, r'(abc|efg){1,4}')
yregex = xmake(regstr)
yregex.test()
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test12(self):
regstr = r'(a{0,})\1cef|(b{0,})\2oo\*|(abc)\3foo|c+'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test13(self):
regstr = r'^abc|foo|ee$'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test13(self):
regstr = r'^|foo|$'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test14(self):
regstr = r'(((^|foo|$)\3))|(foo)\4|[a-z]$'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test15(self):
regstr = r'a|b|c+'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test16(self):
regstr = r'(a+|b*|c+)(\1ff)((\2ee))\3*|rs+|rss*'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test17(self):
regstr = r'(a+|b*|c+)(\1ff)((\2ee))\3*|((a+cee*ee+c{1,}?)ee)'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test18(self):
regstr = r'(a+|b*|c+)(\1ff)((\2ee))\3*|((a+cee*ee+c{1,}?)ee)|((a.+c)cd.*)(?=f.+bar)'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test19(self):
regstr = r'(a+|b*|(?<=abc..d)(((ss))c+))(f+f)((ee))*|((a+cee*ee+c{1,}?)ee)|((a.+c)cd.*)(?=f.+bar)'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test20(self):
regstr = r'(((e(a|b|c)d)c)|((ab|cd)|ef)|((((a|e|u|i+))))|ef)|ee|oo|.+'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test21(self):
regstr = r'a.+?|e.*?|c{1,2}'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
class TestOneOrZero(unittest.TestCase):
def test0(self):
expr0 = Include(Seq('0', '9'))
expr1 = Any(expr0, 'ahh', X())
expr2 = OneOrZero(Group(expr1))
expr3 = Group(expr1, 'ee', X(), 'uu')
regstr = expr3.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test1(self):
expr0 = Exclude(Seq('a', 'b'))
expr1 = OneOrZero(expr0)
expr2 = Group(expr1, 'ee', X(), 'uu')
regstr = expr2.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test2(self):
expr1 = OneOrZero(Group('fooo'))
expr2 = Group(expr1, 'ee', X(), 'uu')
expr3 = Pattern(expr2, 'foobar', expr2, 'bar', expr2)
regstr = expr2.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test3(self):
regstr = r'a?b?c?\*?\&?[c-z\*\(\)\[\]]?c?(a?e?)\1?c'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test4(self):
regstr = r'(aa{1,3}?)\1'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
class TestOneOrMore(unittest.TestCase):
def test0(self):
expr0 = Exclude(Seq('a', 'z'))
expr1 = Any(expr0, expr0, 'fooo', X(), 'ooo', expr0)
expr2 = OneOrMore(Group(expr1))
expr3 = Group(expr1, 'ee', X(), 'uu', expr2, 'oo', expr1)
regstr = expr3.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test1(self):
expr0 = Include(Seq('a', 'b'))
expr1 = OneOrMore(expr0)
expr2 = Group(expr0, '111', X(), X(), '222')
regstr = expr2.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test2(self):
expr1 = OneOrMore(Group('fooo'))
expr2 = Group(expr1, '0000000', expr1, expr1, X(), 'uu', expr1)
expr3 = Pattern(expr1, expr2, expr2, 'alpha', expr2, 'bar', expr2)
# The regex.
# (fooo)+(\1+0000000\1+\1+.uu\1+)\2alpha\2bar\2
regstr = expr3.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test3(self):
regstr = r'a+c+b+?(c+e+?)+?\1?(\1?c)+'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
class TestGroup(unittest.TestCase):
def test0(self):
expr0 = Group(X(), 'a', 'b')
expr1 = Group(expr0, 'oo')
expr2 = Group(expr1, 'mm')
expr3 = Group(expr2, 'uu')
expr4 = Any(expr0, expr1, expr2, expr3)
regstr = expr4.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test1(self):
expr0 = Group(X(), 'a', 'b', Include('abc'))
expr1 = Group(expr0, 'uuu', 'uuu', Exclude(Seq('a', 'z')))
expr2 = Group(expr1, 'mm', Pattern(expr0, expr1, 'fooo'), 'uuuuu')
expr3 = Group(expr2, 'uu')
expr4 = Pattern(expr0, expr1, expr2, expr3)
expr5 = Pattern(expr4, expr0, expr1, expr2, expr3, expr4)
regstr = expr5.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test2(self):
expr0 = Group('a')
expr1 = Group('c', Group(expr0, 'd'))
expr2 = Group(expr1, 'e')
expr3 = Pattern(expr0, expr1, expr2)
regstr = expr3.mkregex()
yregex = xmake(regstr)
expr3.test()
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test3(self):
expr0 = Group('abc')
expr1 = Group(expr0, 'efg')
expr2 = Group(expr0, expr1)
regstr = expr2.mkregex()
yregex = xmake(regstr)
yregex.test()
# Eacc should be capable of reading back the
# serialized string.
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test4(self):
expr0 = Group('ab')
expr1 = Group(expr0, expr0)
regstr = expr1.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
class TestNamedGroup(unittest.TestCase):
def test0(self):
expr0 = NamedGroup('beta', 'X', X(), 'B')
expr1 = Pattern('um', expr0, 'dois', expr0, 'tres', expr0)
regstr = expr1.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test1(self):
expr0 = NamedGroup('alpha', 'X', OneOrMore(Group('a', 'b')), 'B')
expr1 = Any(expr0, 'abc', X(), 'edf')
expr2 = Pattern(expr0, Group(expr1), X(), 'foobar')
regstr = expr2.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test2(self):
# Check if it works for nested named groups.
expr0 = NamedGroup('alpha', 'X', OneOrMore(Group('a', 'b')), 'B')
expr1 = NamedGroup('beta', Group('Lets be overmen.'))
expr2 = NamedGroup('gamma', OneOrMore(expr1), 'rs', OneOrMore(Group('rs')))
expr3 = NamedGroup('delta', expr0, expr1, expr2, 'hoho')
expr4 = Pattern(expr0, expr1, expr0, expr1, expr2, expr3)
regstr = expr4.mkregex()
# The regex.
# (?P<alpha>X(ab)+B)(?P<beta>Lets\ be\ overmen\.)(?P=alpha)(?P=beta)\
# (?P<gamma>(?P=beta)?rs(rs)+)(?P<delta>(?P=alpha)(?P=beta)(?P=gamma)hoho)
# Check if eacc can build it back.
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test3(self):
expr0 = NamedGroup('foobar', Repeat(Group(Any('a', X(), 'b'))))
expr1 = Any(expr0, 'm', 'n', Group(expr0, '12', X()))
regstr = expr1.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
class TestRepeat(unittest.TestCase):
def test0(self):
expr0 = NamedGroup('oooo', Repeat(Group(Any('a', X(), 'b'))))
expr1 = Any(expr0, 'm', 'n', Group('oooo'), Group(expr0, X(), '12oooo', X()))
expr2 = Repeat(Group(expr1), 1, 3)
expr3 = Pattern(expr0, Group(expr1), expr2)
regstr = expr3.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test1(self):
expr0 = NamedGroup('oooo', Repeat(Group(Any('a', X(), 'b'))))
expr1 = Any(expr0, 'm', 'n', Group('oooo'), Group(expr0, X(), '12oooo', X()))
expr2 = Repeat(Group(expr1))
expr3 = Pattern(expr0, Group(expr1), expr2)
expr4 = Pattern(expr0, X(), 'ooo', X(), Group(expr1), expr2, expr3)
expr5 = Any(expr0, expr1, expr2, expr3, expr4)
regstr = expr5.mkregex()
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test2(self):
regstr = r'a{1,2}'
yregex = xmake(regstr)
yregex.test()
self.assertEqual(yregex.mkregex(), regstr)
clone = yregex.mkclone()
self.assertEqual(clone.mkregex(), regstr)
def test3(self):
regstr = r'\*{1,2}?c*'
yregex = xmake(regstr)