def test_labeled_nodes(self):
'''
Test labeled nodes.
Test case from Emily M. Bender.
'''
search = '''
# macros
@ SBJ /SBJ/;
@ VP /VP/;
@ VB /VB/;
@ VPoB /V[PB]/;
@ OBJ /OBJ/;
# 1 svo
S < @SBJ=s < (@VP=v < (@VB $.. @OBJ)) : =s .. =v'''
sent1 = ParentedTree.fromstring(
'(S (NP-SBJ I) (VP (VB eat) (NP-OBJ (NNS apples))))')
sent2 = ParentedTree.fromstring(
'(S (VP (VB eat) (NP-OBJ (NNS apples))) (NP-SBJ I))')
search_firsthalf = (search.split('\n\n')[0] +
'S < @SBJ < (@VP < (@VB $.. @OBJ))')
search_rewrite = 'S < (/.*SBJ/ $.. (/VP/ < (/VB/ $.. /.*OBJ/)))'
self.assertTrue(list(tgrep.tgrep_positions(search_firsthalf, [sent1]))[0])
self.assertTrue(list(tgrep.tgrep_positions(search, [sent1]))[0])
self.assertTrue(list(tgrep.tgrep_positions(search_rewrite, [sent1]))[0])
self.assertEqual(list(tgrep.tgrep_positions(search, [sent1])),
list(tgrep.tgrep_positions(search_rewrite, [sent1])))
self.assertTrue(list(tgrep.tgrep_positions(search_firsthalf, [sent2]))[0])
self.assertFalse(list(tgrep.tgrep_positions(search, [sent2]))[0])
self.assertFalse(list(tgrep.tgrep_positions(search_rewrite, [sent2]))[0])
self.assertEqual(list(tgrep.tgrep_positions(search, [sent2])),
list(tgrep.tgrep_positions(search_rewrite, [sent2])))
def test_node_nocase(self):
'''
Test selecting nodes using case insensitive node names.
'''
tree = ParentedTree.fromstring('(S (n x) (N x))')
self.assertEqual(list(tgrep.tgrep_positions('"N"', [tree])), [[(1,)]])
self.assertEqual(list(tgrep.tgrep_positions('i@"N"', [tree])), [[(0,), (1,)]])
def test_use_macros(self):
'''
Test defining and using tgrep2 macros.
'''
tree = ParentedTree.fromstring(
'(VP (VB sold) (NP (DET the) '
'(NN heiress)) (NP (NN deed) (PREP to) '
'(NP (DET the) (NN school) (NN house))))'
)
self.assertEqual(
list(
tgrep.tgrep_positions(
'@ NP /^NP/;\n@ NN /^NN/;\n@NP !< @NP !$.. @NN', [tree]
)
),
[[(1,), (2, 2)]],
)
# use undefined macro @CNP
self.assertRaises(
tgrep.TgrepException,
list,
tgrep.tgrep_positions(
'@ NP /^NP/;\n@ NN /^NN/;\n@CNP !< @NP !$.. @NN', [tree]
),
)
def test_node_nocase(self):
'''
Test selecting nodes using case insensitive node names.
'''
tree = ParentedTree.fromstring('(S (n x) (N x))')
self.assertEqual(list(tgrep.tgrep_positions('"N"', [tree])), [[(1,)]])
self.assertEqual(list(tgrep.tgrep_positions('i@"N"', [tree])), [[(0,), (1,)]])
def test_use_macros(self):
'''
Test defining and using tgrep2 macros.
'''
tree = ParentedTree.fromstring(
'(VP (VB sold) (NP (DET the) '
'(NN heiress)) (NP (NN deed) (PREP to) '
'(NP (DET the) (NN school) (NN house))))'
)
self.assertEqual(
list(
tgrep.tgrep_positions(
'@ NP /^NP/;\n@ NN /^NN/;\n@NP !< @NP !$.. @NN', [tree]
)
),
[[(1,), (2, 2)]],
)
# use undefined macro @CNP
self.assertRaises(
tgrep.TgrepException,
list,
tgrep.tgrep_positions(
'@ NP /^NP/;\n@ NN /^NN/;\n@CNP !< @NP !$.. @NN', [tree]
),
)
def test_node_printing(self):
'''Test that the tgrep print operator ' is properly ignored.'''
tree = ParentedTree.fromstring('(S (n x) (N x))')
self.assertEqual(list(tgrep.tgrep_positions('N', [tree])),
list(tgrep.tgrep_positions('\'N', [tree])))
self.assertEqual(list(tgrep.tgrep_positions('/[Nn]/', [tree])),
list(tgrep.tgrep_positions('\'/[Nn]/', [tree])))
def test_node_printing(self):
'''Test that the tgrep print operator ' is properly ignored.'''
tree = ParentedTree.fromstring('(S (n x) (N x))')
self.assertEqual(list(tgrep.tgrep_positions('N', [tree])),
list(tgrep.tgrep_positions('\'N', [tree])))
self.assertEqual(list(tgrep.tgrep_positions('/[Nn]/', [tree])),
list(tgrep.tgrep_positions('\'/[Nn]/', [tree])))
def test_labeled_nodes(self):
'''
Test labeled nodes.
Test case from Emily M. Bender.
'''
search = '''
# macros
@ SBJ /SBJ/;
@ VP /VP/;
@ VB /VB/;
@ VPoB /V[PB]/;
@ OBJ /OBJ/;
# 1 svo
S < @SBJ=s < (@VP=v < (@VB $.. @OBJ)) : =s .. =v'''
sent1 = ParentedTree.fromstring(
'(S (NP-SBJ I) (VP (VB eat) (NP-OBJ (NNS apples))))')
sent2 = ParentedTree.fromstring(
'(S (VP (VB eat) (NP-OBJ (NNS apples))) (NP-SBJ I))')
search_firsthalf = (search.split('\n\n')[0] +
'S < @SBJ < (@VP < (@VB $.. @OBJ))')
search_rewrite = 'S < (/.*SBJ/ $.. (/VP/ < (/VB/ $.. /.*OBJ/)))'
self.assertTrue(list(tgrep.tgrep_positions(search_firsthalf, [sent1]))[0])
self.assertTrue(list(tgrep.tgrep_positions(search, [sent1]))[0])
self.assertTrue(list(tgrep.tgrep_positions(search_rewrite, [sent1]))[0])
self.assertEqual(list(tgrep.tgrep_positions(search, [sent1])),
list(tgrep.tgrep_positions(search_rewrite, [sent1])))
self.assertTrue(list(tgrep.tgrep_positions(search_firsthalf, [sent2]))[0])
self.assertFalse(list(tgrep.tgrep_positions(search, [sent2]))[0])
self.assertFalse(list(tgrep.tgrep_positions(search_rewrite, [sent2]))[0])
self.assertEqual(list(tgrep.tgrep_positions(search, [sent2])),
list(tgrep.tgrep_positions(search_rewrite, [sent2])))
def test_node_noleaves(self):
'''
Test node name matching with the search_leaves flag set to False.
'''
tree = ParentedTree.fromstring('(S (A (T x)) (B (N x)))')
self.assertEqual(list(tgrep.tgrep_positions('x', [tree])),
[[(0, 0, 0), (1, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('x', [tree], False)), [[]])
def test_node_quoted(self):
'''
Test selecting nodes using quoted node names.
'''
tree = ParentedTree.fromstring('(N ("N" x) (N" x) ("\\" x))')
self.assertEqual(list(tgrep.tgrep_positions('"N"', [tree])), [[()]])
self.assertEqual(list(tgrep.tgrep_positions('"\\"N\\""', [tree])), [[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions('"N\\""', [tree])), [[(1,)]])
self.assertEqual(list(tgrep.tgrep_positions('"\\"\\\\\\""', [tree])), [[(2,)]])
def test_node_noleaves(self):
'''
Test node name matching with the search_leaves flag set to False.
'''
tree = ParentedTree.fromstring('(S (A (T x)) (B (N x)))')
self.assertEqual(list(tgrep.tgrep_positions('x', [tree])),
[[(0, 0, 0), (1, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('x', [tree], False)),
[[]])
def test_node_quoted(self):
'''
Test selecting nodes using quoted node names.
'''
tree = ParentedTree.fromstring('(N ("N" x) (N" x) ("\\" x))')
self.assertEqual(list(tgrep.tgrep_positions('"N"', [tree])), [[()]])
self.assertEqual(list(tgrep.tgrep_positions('"\\"N\\""', [tree])), [[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions('"N\\""', [tree])), [[(1,)]])
self.assertEqual(list(tgrep.tgrep_positions('"\\"\\\\\\""', [tree])), [[(2,)]])
def test_rel_sister_nodes(self):
'''
Test matching sister nodes in a tree.
'''
tree = ParentedTree.fromstring('(S (A x) (B x) (C x))')
self.assertEqual(list(tgrep.tgrep_positions('* $. B', [tree])), [[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions('* $.. B', [tree])), [[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions('* $, B', [tree])), [[(2,)]])
self.assertEqual(list(tgrep.tgrep_positions('* $,, B', [tree])), [[(2,)]])
self.assertEqual(list(tgrep.tgrep_positions('* $ B', [tree])), [[(0,), (2,)]])
def test_rel_sister_nodes(self):
'''
Test matching sister nodes in a tree.
'''
tree = ParentedTree.fromstring('(S (A x) (B x) (C x))')
self.assertEqual(list(tgrep.tgrep_positions('* $. B', [tree])), [[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions('* $.. B', [tree])), [[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions('* $, B', [tree])), [[(2,)]])
self.assertEqual(list(tgrep.tgrep_positions('* $,, B', [tree])), [[(2,)]])
self.assertEqual(list(tgrep.tgrep_positions('* $ B', [tree])), [[(0,), (2,)]])
def test_rel_sister_nodes(self):
"""
Test matching sister nodes in a tree.
"""
tree = ParentedTree.fromstring("(S (A x) (B x) (C x))")
self.assertEqual(list(tgrep.tgrep_positions("* $. B", [tree])), [[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions("* $.. B", [tree])), [[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions("* $, B", [tree])), [[(2,)]])
self.assertEqual(list(tgrep.tgrep_positions("* $,, B", [tree])), [[(2,)]])
self.assertEqual(list(tgrep.tgrep_positions("* $ B", [tree])), [[(0,), (2,)]])
def test_node_regex_2(self):
'''
Test regex matching on nodes.
'''
tree = ParentedTree.fromstring('(S (SBJ x) (SBJ1 x) (NP-SBJ x))')
self.assertEqual(list(tgrep.tgrep_positions('/^SBJ/', [tree])),
[[(0,), (1,)]])
# This is a regular expression that matches any node whose
# name includes SBJ, including NP-SBJ:
self.assertEqual(list(tgrep.tgrep_positions('/SBJ/', [tree])),
[[(0,), (1,), (2,)]])
def test_node_regex_2(self):
'''
Test regex matching on nodes.
'''
tree = ParentedTree.fromstring('(S (SBJ x) (SBJ1 x) (NP-SBJ x))')
self.assertEqual(list(tgrep.tgrep_positions('/^SBJ/', [tree])),
[[(0, ), (1, )]])
# This is a regular expression that matches any node whose
# name includes SBJ, including NP-SBJ:
self.assertEqual(list(tgrep.tgrep_positions('/SBJ/', [tree])),
[[(0, ), (1, ), (2, )]])
def test_node_printing(self):
"""Test that the tgrep print operator ' is properly ignored."""
tree = ParentedTree.fromstring("(S (n x) (N x))")
self.assertEqual(
list(tgrep.tgrep_positions("N", [tree])),
list(tgrep.tgrep_positions("'N", [tree])),
)
self.assertEqual(
list(tgrep.tgrep_positions("/[Nn]/", [tree])),
list(tgrep.tgrep_positions("'/[Nn]/", [tree])),
)
def test_trailing_semicolon(self):
"""
Test that semicolons at the end of a tgrep2 search string won't
cause a parse failure.
"""
tree = ParentedTree.fromstring("(S (NP (DT the) (JJ big) (NN dog)) "
"(VP bit) (NP (DT a) (NN cat)))")
self.assertEqual(list(tgrep.tgrep_positions("NN", [tree])), [[(0, 2),
(2, 1)]])
self.assertEqual(list(tgrep.tgrep_positions("NN;", [tree])),
[[(0, 2), (2, 1)]])
self.assertEqual(list(tgrep.tgrep_positions("NN;;", [tree])),
[[(0, 2), (2, 1)]])
def test_trailing_semicolon(self):
'''
Test that semicolons at the end of a tgrep2 search string won't
cause a parse failure.
'''
tree = ParentedTree.fromstring(
'(S (NP (DT the) (JJ big) (NN dog)) ' '(VP bit) (NP (DT a) (NN cat)))'
)
self.assertEqual(list(tgrep.tgrep_positions('NN', [tree])), [[(0, 2), (2, 1)]])
self.assertEqual(list(tgrep.tgrep_positions('NN;', [tree])), [[(0, 2), (2, 1)]])
self.assertEqual(
list(tgrep.tgrep_positions('NN;;', [tree])), [[(0, 2), (2, 1)]]
)
def test_trailing_semicolon(self):
'''
Test that semicolons at the end of a tgrep2 search string won't
cause a parse failure.
'''
tree = ParentedTree.fromstring('(S (NP (DT the) (JJ big) (NN dog)) '
'(VP bit) (NP (DT a) (NN cat)))')
self.assertEqual(list(tgrep.tgrep_positions('NN', [tree])), [[(0, 2),
(2, 1)]])
self.assertEqual(list(tgrep.tgrep_positions('NN;', [tree])),
[[(0, 2), (2, 1)]])
self.assertEqual(list(tgrep.tgrep_positions('NN;;', [tree])),
[[(0, 2), (2, 1)]])
def test_multiple_conjs(self):
'''
Test that multiple (3 or more) conjunctions of node relations are
handled properly.
'''
sent = ParentedTree.fromstring(
'((A (B b) (C c)) (A (B b) (C c) (D d)))')
# search = '(A < B < C < D)'
# search_tworels = '(A < B < C)'
self.assertEqual(list(tgrep.tgrep_positions('(A < B < C < D)', [sent])),
[[(1,)]])
self.assertEqual(list(tgrep.tgrep_positions('(A < B < C)', [sent])),
[[(0,), (1,)]])
def test_multiple_conjs(self):
'''
Test that multiple (3 or more) conjunctions of node relations are
handled properly.
'''
sent = ParentedTree.fromstring(
'((A (B b) (C c)) (A (B b) (C c) (D d)))')
# search = '(A < B < C < D)'
# search_tworels = '(A < B < C)'
self.assertEqual(
list(tgrep.tgrep_positions('(A < B < C < D)', [sent])), [[(1, )]])
self.assertEqual(list(tgrep.tgrep_positions('(A < B < C)', [sent])),
[[(0, ), (1, )]])
def test_node_simple(self):
'''
Test a simple use of tgrep for finding nodes matching a given
pattern.
'''
tree = ParentedTree.fromstring('(S (NP (DT the) (JJ big) (NN dog)) '
'(VP bit) (NP (DT a) (NN cat)))')
self.assertEqual(list(tgrep.tgrep_positions('NN', [tree])), [[(0, 2),
(2, 1)]])
self.assertEqual(list(tgrep.tgrep_nodes('NN', [tree])),
[[tree[0, 2], tree[2, 1]]])
self.assertEqual(list(tgrep.tgrep_positions('NN|JJ', [tree])),
[[(0, 1), (0, 2), (2, 1)]])
def test_node_encoding(self):
'''
Test that tgrep search strings handles bytes and strs the same
way.
'''
tree = ParentedTree.fromstring('(S (NP (DT the) (JJ big) (NN dog)) '
'(VP bit) (NP (DT a) (NN cat)))')
self.assertEqual(list(tgrep.tgrep_positions(b('NN'), [tree])),
list(tgrep.tgrep_positions('NN', [tree])))
self.assertEqual(list(tgrep.tgrep_nodes(b('NN'), [tree])),
list(tgrep.tgrep_nodes('NN', [tree])))
self.assertEqual(list(tgrep.tgrep_positions(b('NN|JJ'), [tree])),
list(tgrep.tgrep_positions('NN|JJ', [tree])))
def test_rel_precedence(self):
'''
Test matching nodes based on precedence relations.
'''
tree = ParentedTree.fromstring('(S (NP (NP (PP x)) (NP (AP x)))'
' (VP (AP (X (PP x)) (Y (AP x))))'
' (NP (RC (NP (AP x)))))')
self.assertEqual(list(tgrep.tgrep_positions('* . X', [tree])),
[[(0,), (0, 1), (0, 1, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* . Y', [tree])),
[[(1, 0, 0), (1, 0, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* .. X', [tree])),
[[(0,), (0, 0), (0, 0, 0), (0, 1), (0, 1, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* .. Y', [tree])),
[[(0,), (0, 0), (0, 0, 0), (0, 1), (0, 1, 0),
(1, 0, 0), (1, 0, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* , X', [tree])),
[[(1, 0, 1), (1, 0, 1, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* , Y', [tree])),
[[(2,), (2, 0), (2, 0, 0), (2, 0, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* ,, X', [tree])),
[[(1, 0, 1), (1, 0, 1, 0), (2,), (2, 0), (2, 0, 0),
(2, 0, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* ,, Y', [tree])),
[[(2,), (2, 0), (2, 0, 0), (2, 0, 0, 0)]])
def test_rel_precedence(self):
'''
Test matching nodes based on precedence relations.
'''
tree = ParentedTree.fromstring('(S (NP (NP (PP x)) (NP (AP x)))'
' (VP (AP (X (PP x)) (Y (AP x))))'
' (NP (RC (NP (AP x)))))')
self.assertEqual(list(tgrep.tgrep_positions('* . X', [tree])),
[[(0, ), (0, 1), (0, 1, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* . Y', [tree])),
[[(1, 0, 0), (1, 0, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* .. X', [tree])),
[[(0, ), (0, 0), (0, 0, 0), (0, 1), (0, 1, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* .. Y', [tree])),
[[(0, ), (0, 0), (0, 0, 0), (0, 1), (0, 1, 0),
(1, 0, 0), (1, 0, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* , X', [tree])),
[[(1, 0, 1), (1, 0, 1, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* , Y', [tree])),
[[(2, ), (2, 0), (2, 0, 0), (2, 0, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* ,, X', [tree])),
[[(1, 0, 1), (1, 0, 1, 0), (2, ), (2, 0), (2, 0, 0),
(2, 0, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* ,, Y', [tree])),
[[(2, ), (2, 0), (2, 0, 0), (2, 0, 0, 0)]])
def test_rel_precedence(self):
"""
Test matching nodes based on precedence relations.
"""
tree = ParentedTree.fromstring("(S (NP (NP (PP x)) (NP (AP x)))"
" (VP (AP (X (PP x)) (Y (AP x))))"
" (NP (RC (NP (AP x)))))")
self.assertEqual(list(tgrep.tgrep_positions("* . X", [tree])),
[[(0, ), (0, 1), (0, 1, 0)]])
self.assertEqual(list(tgrep.tgrep_positions("* . Y", [tree])),
[[(1, 0, 0), (1, 0, 0, 0)]])
self.assertEqual(
list(tgrep.tgrep_positions("* .. X", [tree])),
[[(0, ), (0, 0), (0, 0, 0), (0, 1), (0, 1, 0)]],
)
self.assertEqual(
list(tgrep.tgrep_positions("* .. Y", [tree])),
[[(0, ), (0, 0), (0, 0, 0), (0, 1), (0, 1, 0), (1, 0, 0),
(1, 0, 0, 0)]],
)
self.assertEqual(list(tgrep.tgrep_positions("* , X", [tree])),
[[(1, 0, 1), (1, 0, 1, 0)]])
self.assertEqual(
list(tgrep.tgrep_positions("* , Y", [tree])),
[[(2, ), (2, 0), (2, 0, 0), (2, 0, 0, 0)]],
)
self.assertEqual(
list(tgrep.tgrep_positions("* ,, X", [tree])),
[[(1, 0, 1), (1, 0, 1, 0), (2, ), (2, 0), (2, 0, 0),
(2, 0, 0, 0)]],
)
self.assertEqual(
list(tgrep.tgrep_positions("* ,, Y", [tree])),
[[(2, ), (2, 0), (2, 0, 0), (2, 0, 0, 0)]],
)
def test_node_simple(self):
'''
Test a simple use of tgrep for finding nodes matching a given
pattern.
'''
tree = ParentedTree.fromstring(
'(S (NP (DT the) (JJ big) (NN dog)) '
'(VP bit) (NP (DT a) (NN cat)))')
self.assertEqual(list(tgrep.tgrep_positions('NN', [tree])),
[[(0,2), (2,1)]])
self.assertEqual(list(tgrep.tgrep_nodes('NN', [tree])),
[[tree[0,2], tree[2,1]]])
self.assertEqual(list(tgrep.tgrep_positions('NN|JJ', [tree])),
[[(0, 1), (0, 2), (2, 1)]])
def test_node_encoding(self):
'''
Test that tgrep search strings handles bytes and strs the same
way.
'''
tree = ParentedTree.fromstring(
'(S (NP (DT the) (JJ big) (NN dog)) '
'(VP bit) (NP (DT a) (NN cat)))')
self.assertEqual(list(tgrep.tgrep_positions(b('NN'), [tree])),
list(tgrep.tgrep_positions('NN', [tree])))
self.assertEqual(list(tgrep.tgrep_nodes(b('NN'), [tree])),
list(tgrep.tgrep_nodes('NN', [tree])))
self.assertEqual(list(tgrep.tgrep_positions(b('NN|JJ'), [tree])),
list(tgrep.tgrep_positions('NN|JJ', [tree])))
def test_bad_operator(self):
'''
Test error handling of undefined tgrep operators.
'''
tree = ParentedTree.fromstring('(S (A (T x)) (B (N x)))')
self.assertRaises(tgrep.TgrepException, list,
tgrep.tgrep_positions('* >>> S', [tree]))
def test_bad_operator(self):
"""
Test error handling of undefined tgrep operators.
"""
tree = ParentedTree.fromstring("(S (A (T x)) (B (N x)))")
self.assertRaises(tgrep.TgrepException, list,
tgrep.tgrep_positions("* >>> S", [tree]))
def test_bad_operator(self):
'''
Test error handling of undefined tgrep operators.
'''
tree = ParentedTree.fromstring('(S (A (T x)) (B (N x)))')
self.assertRaises(
tgrep.TgrepException, list, tgrep.tgrep_positions('* >>> S', [tree])
)
def test_node_regex(self):
'''
Test regex matching on nodes.
'''
tree = ParentedTree.fromstring('(S (NP-SBJ x) (NP x) (NNP x) (VP x))')
# This is a regular expression that matches any node whose
# name starts with NP, including NP-SBJ:
self.assertEqual(list(tgrep.tgrep_positions('/^NP/', [tree])), [[(0,), (1,)]])
def test_node_regex(self):
'''
Test regex matching on nodes.
'''
tree = ParentedTree.fromstring('(S (NP-SBJ x) (NP x) (NNP x) (VP x))')
# This is a regular expression that matches any node whose
# name starts with NP, including NP-SBJ:
self.assertEqual(list(tgrep.tgrep_positions('/^NP/', [tree])), [[(0,), (1,)]])
def test_node_encoding(self):
"""
Test that tgrep search strings handles bytes and strs the same
way.
"""
tree = ParentedTree.fromstring("(S (NP (DT the) (JJ big) (NN dog)) "
"(VP bit) (NP (DT a) (NN cat)))")
self.assertEqual(
list(tgrep.tgrep_positions(b"NN", [tree])),
list(tgrep.tgrep_positions(b"NN", [tree])),
)
self.assertEqual(
list(tgrep.tgrep_nodes(b"NN", [tree])),
list(tgrep.tgrep_nodes("NN", [tree])),
)
self.assertEqual(
list(tgrep.tgrep_positions(b"NN|JJ", [tree])),
list(tgrep.tgrep_positions("NN|JJ", [tree])),
)
def test_comments(self):
'''
Test that comments are correctly filtered out of tgrep search
strings.
'''
tree = ParentedTree.fromstring('(S (NN x) (NP x) (NN x))')
search1 = '''
@ NP /^NP/;
@ NN /^NN/;
@NN
'''
self.assertEqual(list(tgrep.tgrep_positions(search1, [tree])), [[(0,), (2,)]])
search2 = '''
# macros
@ NP /^NP/;
@ NN /^NN/;
# search string
@NN
'''
self.assertEqual(list(tgrep.tgrep_positions(search2, [tree])), [[(0,), (2,)]])
def test_comments(self):
"""
Test that comments are correctly filtered out of tgrep search
strings.
"""
tree = ParentedTree.fromstring("(S (NN x) (NP x) (NN x))")
search1 = """
@ NP /^NP/;
@ NN /^NN/;
@NN
"""
self.assertEqual(list(tgrep.tgrep_positions(search1, [tree])), [[(0,), (2,)]])
search2 = """
# macros
@ NP /^NP/;
@ NN /^NN/;
# search string
@NN
"""
self.assertEqual(list(tgrep.tgrep_positions(search2, [tree])), [[(0,), (2,)]])
def test_comments(self):
'''
Test that comments are correctly filtered out of tgrep search
strings.
'''
tree = ParentedTree.fromstring('(S (NN x) (NP x) (NN x))')
search1 = '''
@ NP /^NP/;
@ NN /^NN/;
@NN
'''
self.assertEqual(list(tgrep.tgrep_positions(search1, [tree])), [[(0,), (2,)]])
search2 = '''
# macros
@ NP /^NP/;
@ NN /^NN/;
# search string
@NN
'''
self.assertEqual(list(tgrep.tgrep_positions(search2, [tree])), [[(0,), (2,)]])
def test_node_tree_position(self):
"""
Test matching on nodes based on NLTK tree position.
"""
tree = ParentedTree.fromstring("(S (NP-SBJ x) (NP x) (NNP x) (VP x))")
# test all tree positions that are not leaves
leaf_positions = {tree.leaf_treeposition(x) for x in range(len(tree.leaves()))}
tree_positions = [x for x in tree.treepositions() if x not in leaf_positions]
for position in tree_positions:
node_id = f"N{position}"
tgrep_positions = list(tgrep.tgrep_positions(node_id, [tree]))
self.assertEqual(len(tgrep_positions[0]), 1)
self.assertEqual(tgrep_positions[0][0], position)
def test_node_tree_position(self):
'''
Test matching on nodes based on NLTK tree position.
'''
tree = ParentedTree.fromstring('(S (NP-SBJ x) (NP x) (NNP x) (VP x))')
# test all tree positions that are not leaves
leaf_positions = set(
tree.leaf_treeposition(x) for x in range(len(tree.leaves()))
)
tree_positions = [x for x in tree.treepositions() if x not in leaf_positions]
for position in tree_positions:
node_id = 'N{0}'.format(position)
tgrep_positions = list(tgrep.tgrep_positions(node_id, [tree]))
self.assertEqual(len(tgrep_positions[0]), 1)
self.assertEqual(tgrep_positions[0][0], position)
def test_node_tree_position(self):
'''
Test matching on nodes based on NLTK tree position.
'''
tree = ParentedTree.fromstring('(S (NP-SBJ x) (NP x) (NNP x) (VP x))')
# test all tree positions that are not leaves
leaf_positions = set([tree.leaf_treeposition(x)
for x in range(len(tree.leaves()))])
tree_positions = [x for x in tree.treepositions()
if x not in leaf_positions]
for position in tree_positions:
node_id = 'N{0}'.format(position)
tgrep_positions = list(tgrep.tgrep_positions(node_id, [tree]))
self.assertEqual(len(tgrep_positions[0]), 1)
self.assertEqual(tgrep_positions[0][0], position)
def tests_rel_dominance(self):
'''
Test matching nodes based on dominance relations.
'''
tree = ParentedTree.fromstring('(S (A (T x)) (B (N x)))')
self.assertEqual(list(tgrep.tgrep_positions('* < T', [tree])),
[[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions('* < T > S', [tree])),
[[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions('* !< T', [tree])),
[[(), (0, 0), (0, 0, 0), (1,), (1, 0), (1, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* !< T > S', [tree])),
[[(1,)]])
self.assertEqual(list(tgrep.tgrep_positions('* > A', [tree])),
[[(0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* > B', [tree])),
[[(1, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* !> B', [tree])),
[[(), (0,), (0, 0), (0, 0, 0), (1,), (1, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* !> B >> S', [tree])),
[[(0,), (0, 0), (1,)]])
self.assertEqual(list(tgrep.tgrep_positions('* >> S', [tree])),
[[(0,), (0, 0), (1,), (1, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* >>, S', [tree])),
[[(0,), (0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* >>\' S', [tree])),
[[(1,), (1, 0)]])
# Known issue:
#self.assertEqual(list(tgrep.tgrep_positions('* !>> S', [tree])),
# [[()]])
self.assertEqual(list(tgrep.tgrep_positions('* << T', [tree])),
[[(), (0,)]])
self.assertEqual(list(tgrep.tgrep_positions('* <<\' T', [tree])),
[[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions('* <<1 N', [tree])),
[[(1,)]])
self.assertEqual(list(tgrep.tgrep_positions('* !<< T', [tree])),
[[(0, 0), (0, 0, 0), (1,), (1, 0), (1, 0, 0)]])
tree = ParentedTree.fromstring('(S (A (T x)) (B (T x) (N x )))')
self.assertEqual(list(tgrep.tgrep_positions('* <: T', [tree])),
[[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions('* < T', [tree])),
[[(0,), (1,)]])
self.assertEqual(list(tgrep.tgrep_positions('* !<: T', [tree])),
[[(), (0, 0), (0, 0, 0), (1,), (1, 0), (1, 0, 0),
(1, 1), (1, 1, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* !<: T > S', [tree])),
[[(1,)]])
tree = ParentedTree.fromstring('(S (T (A x) (B x)) (T (C x)))')
self.assertEqual(list(tgrep.tgrep_positions('* >: T', [tree])),
[[(1, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* !>: T', [tree])),
[[(), (0,), (0, 0), (0, 0, 0), (0, 1), (0, 1, 0),
(1,), (1, 0, 0)]])
tree = ParentedTree.fromstring('(S (A (B (C (D (E (T x))))))'
' (A (B (C (D (E (T x))) (N x)))))')
self.assertEqual(list(tgrep.tgrep_positions('* <<: T', [tree])),
[[(0,), (0, 0), (0, 0, 0), (0, 0, 0, 0),
(0, 0, 0, 0, 0), (1, 0, 0, 0), (1, 0, 0, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* >>: A', [tree])),
[[(0, 0), (0, 0, 0), (0, 0, 0, 0), (0, 0, 0, 0, 0),
(0, 0, 0, 0, 0, 0), (1, 0), (1, 0, 0)]])
def test_examples(self):
'''
Test the Basic Examples from the TGrep2 manual.
'''
tree = ParentedTree.fromstring('(S (NP (AP x)) (NP (PP x)))')
# This matches any NP node that immediately dominates a PP:
self.assertEqual(list(tgrep.tgrep_positions('NP < PP', [tree])),
[[(1, )]])
tree = ParentedTree.fromstring('(S (NP x) (VP x) (NP (PP x)) (VP x))')
# This matches an NP that dominates a PP and is immediately
# followed by a VP:
self.assertEqual(list(tgrep.tgrep_positions('NP << PP . VP', [tree])),
[[(2, )]])
tree = ParentedTree.fromstring('(S (NP (AP x)) (NP (PP x)) '
'(NP (DET x) (NN x)) (VP x))')
# This matches an NP that dominates a PP or is immediately
# followed by a VP:
self.assertEqual(
list(tgrep.tgrep_positions('NP << PP | . VP', [tree])), [[(1, ),
(2, )]])
tree = ParentedTree.fromstring('(S (NP (NP (PP x)) (NP (AP x)))'
' (VP (AP (NP (PP x)) (NP (AP x))))'
' (NP (RC (NP (AP x)))))')
# This matches an NP that does not dominate a PP. Also, the NP
# must either have a parent that is an NP or be dominated by a
# VP:
self.assertEqual(
list(tgrep.tgrep_positions('NP !<< PP [> NP | >> VP]', [tree])),
[[(0, 1), (1, 0, 1)]])
tree = ParentedTree.fromstring('(S (NP (AP (PP x) (VP x))) '
'(NP (AP (PP x) (NP x))) (NP x))')
# This matches an NP that dominates a PP which itself is
# immediately followed by a VP. Note the use of parentheses to
# group ". VP" with the PP rather than with the NP:
self.assertEqual(
list(tgrep.tgrep_positions('NP << (PP . VP)', [tree])), [[(0, )]])
tree = ParentedTree.fromstring(
'(S (NP (DET a) (NN cat) (PP (IN on) (NP x)))'
' (NP (DET a) (NN cat) (PP (IN on) (NP x)) (PP x))'
' (NP x))')
# This matches an NP whose last child is a PP that begins with
# the preposition "on":
self.assertEqual(
list(tgrep.tgrep_positions('NP <\' (PP <, (IN < on))', [tree])),
[[(0, )]])
tree = ParentedTree.fromstring(
'(S (S (C x) (A (B x))) (S (C x) (A x)) '
'(S (D x) (A (B x))))')
# The following pattern matches an S which has a child A and
# another child that is a C and that the A has a child B:
self.assertEqual(
list(tgrep.tgrep_positions('S < (A < B) < C', [tree])), [[(0, )]])
tree = ParentedTree.fromstring(
'(S (S (A (B x) (C x))) (S (S (C x) (A (B x)))))')
# However, this pattern means that S has child A and that A
# has children B and C:
self.assertEqual(
list(tgrep.tgrep_positions('S < ((A < B) < C)', [tree])),
[[(0, )]])
# It is equivalent to this:
self.assertEqual(
list(tgrep.tgrep_positions('S < (A < B < C)', [tree])), [[(0, )]])
def tests_rel_indexed_children(self):
'''
Test matching nodes based on their index in their parent node.
'''
tree = ParentedTree.fromstring('(S (A x) (B x) (C x))')
self.assertEqual(list(tgrep.tgrep_positions('* >, S', [tree])), [[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions('* >1 S', [tree])), [[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions('* >2 S', [tree])), [[(1,)]])
self.assertEqual(list(tgrep.tgrep_positions('* >3 S', [tree])), [[(2,)]])
self.assertEqual(list(tgrep.tgrep_positions('* >\' S', [tree])), [[(2,)]])
self.assertEqual(list(tgrep.tgrep_positions('* >-1 S', [tree])), [[(2,)]])
self.assertEqual(list(tgrep.tgrep_positions('* >-2 S', [tree])), [[(1,)]])
self.assertEqual(list(tgrep.tgrep_positions('* >-3 S', [tree])), [[(0,)]])
tree = ParentedTree.fromstring(
'(S (D (A x) (B x) (C x)) (E (B x) (C x) (A x)) '
'(F (C x) (A x) (B x)))')
self.assertEqual(list(tgrep.tgrep_positions('* <, A', [tree])), [[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions('* <1 A', [tree])), [[(0,)]])
self.assertEqual(list(tgrep.tgrep_positions('* <2 A', [tree])), [[(2,)]])
self.assertEqual(list(tgrep.tgrep_positions('* <3 A', [tree])), [[(1,)]])
self.assertEqual(list(tgrep.tgrep_positions('* <\' A', [tree])), [[(1,)]])
self.assertEqual(list(tgrep.tgrep_positions('* <-1 A', [tree])), [[(1,)]])
self.assertEqual(list(tgrep.tgrep_positions('* <-2 A', [tree])), [[(2,)]])
self.assertEqual(list(tgrep.tgrep_positions('* <-3 A', [tree])), [[(0,)]])
def tests_rel_indexed_children(self):
'''
Test matching nodes based on their index in their parent node.
'''
tree = ParentedTree.fromstring('(S (A x) (B x) (C x))')
self.assertEqual(list(tgrep.tgrep_positions('* >, S', [tree])),
[[(0, )]])
self.assertEqual(list(tgrep.tgrep_positions('* >1 S', [tree])),
[[(0, )]])
self.assertEqual(list(tgrep.tgrep_positions('* >2 S', [tree])),
[[(1, )]])
self.assertEqual(list(tgrep.tgrep_positions('* >3 S', [tree])),
[[(2, )]])
self.assertEqual(list(tgrep.tgrep_positions('* >\' S', [tree])),
[[(2, )]])
self.assertEqual(list(tgrep.tgrep_positions('* >-1 S', [tree])),
[[(2, )]])
self.assertEqual(list(tgrep.tgrep_positions('* >-2 S', [tree])),
[[(1, )]])
self.assertEqual(list(tgrep.tgrep_positions('* >-3 S', [tree])),
[[(0, )]])
tree = ParentedTree.fromstring(
'(S (D (A x) (B x) (C x)) (E (B x) (C x) (A x)) '
'(F (C x) (A x) (B x)))')
self.assertEqual(list(tgrep.tgrep_positions('* <, A', [tree])),
[[(0, )]])
self.assertEqual(list(tgrep.tgrep_positions('* <1 A', [tree])),
[[(0, )]])
self.assertEqual(list(tgrep.tgrep_positions('* <2 A', [tree])),
[[(2, )]])
self.assertEqual(list(tgrep.tgrep_positions('* <3 A', [tree])),
[[(1, )]])
self.assertEqual(list(tgrep.tgrep_positions('* <\' A', [tree])),
[[(1, )]])
self.assertEqual(list(tgrep.tgrep_positions('* <-1 A', [tree])),
[[(1, )]])
self.assertEqual(list(tgrep.tgrep_positions('* <-2 A', [tree])),
[[(2, )]])
self.assertEqual(list(tgrep.tgrep_positions('* <-3 A', [tree])),
[[(0, )]])
def test_examples(self):
'''
Test the Basic Examples from the TGrep2 manual.
'''
tree = ParentedTree.fromstring('(S (NP (AP x)) (NP (PP x)))')
# This matches any NP node that immediately dominates a PP:
self.assertEqual(list(tgrep.tgrep_positions('NP < PP', [tree])),
[[(1,)]])
tree = ParentedTree.fromstring('(S (NP x) (VP x) (NP (PP x)) (VP x))')
# This matches an NP that dominates a PP and is immediately
# followed by a VP:
self.assertEqual(list(tgrep.tgrep_positions('NP << PP . VP', [tree])),
[[(2,)]])
tree = ParentedTree.fromstring('(S (NP (AP x)) (NP (PP x)) '
'(NP (DET x) (NN x)) (VP x))')
# This matches an NP that dominates a PP or is immediately
# followed by a VP:
self.assertEqual(list(tgrep.tgrep_positions('NP << PP | . VP', [tree])),
[[(1,), (2,)]])
tree = ParentedTree.fromstring('(S (NP (NP (PP x)) (NP (AP x)))'
' (VP (AP (NP (PP x)) (NP (AP x))))'
' (NP (RC (NP (AP x)))))')
# This matches an NP that does not dominate a PP. Also, the NP
# must either have a parent that is an NP or be dominated by a
# VP:
self.assertEqual(list(tgrep.tgrep_positions(
'NP !<< PP [> NP | >> VP]', [tree])),
[[(0, 1), (1, 0, 1)]])
tree = ParentedTree.fromstring('(S (NP (AP (PP x) (VP x))) '
'(NP (AP (PP x) (NP x))) (NP x))')
# This matches an NP that dominates a PP which itself is
# immediately followed by a VP. Note the use of parentheses to
# group ". VP" with the PP rather than with the NP:
self.assertEqual(list(tgrep.tgrep_positions('NP << (PP . VP)', [tree])),
[[(0,)]])
tree = ParentedTree.fromstring(
'(S (NP (DET a) (NN cat) (PP (IN on) (NP x)))'
' (NP (DET a) (NN cat) (PP (IN on) (NP x)) (PP x))'
' (NP x))')
# This matches an NP whose last child is a PP that begins with
# the preposition "on":
self.assertEqual(list(tgrep.tgrep_positions(
'NP <\' (PP <, (IN < on))', [tree])),
[[(0,)]])
tree = ParentedTree.fromstring(
'(S (S (C x) (A (B x))) (S (C x) (A x)) '
'(S (D x) (A (B x))))')
# The following pattern matches an S which has a child A and
# another child that is a C and that the A has a child B:
self.assertEqual(list(tgrep.tgrep_positions('S < (A < B) < C', [tree])),
[[(0,)]])
tree = ParentedTree.fromstring(
'(S (S (A (B x) (C x))) (S (S (C x) (A (B x)))))')
# However, this pattern means that S has child A and that A
# has children B and C:
self.assertEqual(list(tgrep.tgrep_positions('S < ((A < B) < C)', [tree])),
[[(0,)]])
# It is equivalent to this:
self.assertEqual(list(tgrep.tgrep_positions('S < (A < B < C)', [tree])),
[[(0,)]])
def tests_rel_dominance(self):
'''
Test matching nodes based on dominance relations.
'''
tree = ParentedTree.fromstring('(S (A (T x)) (B (N x)))')
self.assertEqual(list(tgrep.tgrep_positions('* < T', [tree])),
[[(0, )]])
self.assertEqual(list(tgrep.tgrep_positions('* < T > S', [tree])),
[[(0, )]])
self.assertEqual(list(tgrep.tgrep_positions('* !< T', [tree])),
[[(), (0, 0), (0, 0, 0), (1, ), (1, 0), (1, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* !< T > S', [tree])),
[[(1, )]])
self.assertEqual(list(tgrep.tgrep_positions('* > A', [tree])),
[[(0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* > B', [tree])),
[[(1, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* !> B', [tree])),
[[(), (0, ), (0, 0), (0, 0, 0), (1, ), (1, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* !> B >> S', [tree])),
[[(0, ), (0, 0), (1, )]])
self.assertEqual(list(tgrep.tgrep_positions('* >> S', [tree])),
[[(0, ), (0, 0), (1, ), (1, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* >>, S', [tree])),
[[(0, ), (0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* >>\' S', [tree])),
[[(1, ), (1, 0)]])
# Known issue:
#self.assertEqual(list(tgrep.tgrep_positions('* !>> S', [tree])),
# [[()]])
self.assertEqual(list(tgrep.tgrep_positions('* << T', [tree])),
[[(), (0, )]])
self.assertEqual(list(tgrep.tgrep_positions('* <<\' T', [tree])),
[[(0, )]])
self.assertEqual(list(tgrep.tgrep_positions('* <<1 N', [tree])),
[[(1, )]])
self.assertEqual(list(tgrep.tgrep_positions('* !<< T', [tree])),
[[(0, 0), (0, 0, 0), (1, ), (1, 0), (1, 0, 0)]])
tree = ParentedTree.fromstring('(S (A (T x)) (B (T x) (N x )))')
self.assertEqual(list(tgrep.tgrep_positions('* <: T', [tree])),
[[(0, )]])
self.assertEqual(list(tgrep.tgrep_positions('* < T', [tree])),
[[(0, ), (1, )]])
self.assertEqual(list(tgrep.tgrep_positions('* !<: T', [tree])),
[[(), (0, 0), (0, 0, 0), (1, ), (1, 0), (1, 0, 0),
(1, 1), (1, 1, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* !<: T > S', [tree])),
[[(1, )]])
tree = ParentedTree.fromstring('(S (T (A x) (B x)) (T (C x)))')
self.assertEqual(list(tgrep.tgrep_positions('* >: T', [tree])),
[[(1, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* !>: T', [tree])),
[[(), (0, ), (0, 0), (0, 0, 0), (0, 1), (0, 1, 0),
(1, ), (1, 0, 0)]])
tree = ParentedTree.fromstring('(S (A (B (C (D (E (T x))))))'
' (A (B (C (D (E (T x))) (N x)))))')
self.assertEqual(list(tgrep.tgrep_positions('* <<: T', [tree])),
[[(0, ), (0, 0), (0, 0, 0), (0, 0, 0, 0),
(0, 0, 0, 0, 0), (1, 0, 0, 0), (1, 0, 0, 0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions('* >>: A', [tree])),
[[(0, 0), (0, 0, 0), (0, 0, 0, 0), (0, 0, 0, 0, 0),
(0, 0, 0, 0, 0, 0), (1, 0), (1, 0, 0)]])
def tests_rel_dominance(self):
"""
Test matching nodes based on dominance relations.
"""
tree = ParentedTree.fromstring("(S (A (T x)) (B (N x)))")
self.assertEqual(list(tgrep.tgrep_positions("* < T", [tree])),
[[(0, )]])
self.assertEqual(list(tgrep.tgrep_positions("* < T > S", [tree])),
[[(0, )]])
self.assertEqual(
list(tgrep.tgrep_positions("* !< T", [tree])),
[[(), (0, 0), (0, 0, 0), (1, ), (1, 0), (1, 0, 0)]],
)
self.assertEqual(list(tgrep.tgrep_positions("* !< T > S", [tree])),
[[(1, )]])
self.assertEqual(list(tgrep.tgrep_positions("* > A", [tree])),
[[(0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions("* > B", [tree])),
[[(1, 0)]])
self.assertEqual(
list(tgrep.tgrep_positions("* !> B", [tree])),
[[(), (0, ), (0, 0), (0, 0, 0), (1, ), (1, 0, 0)]],
)
self.assertEqual(list(tgrep.tgrep_positions("* !> B >> S", [tree])),
[[(0, ), (0, 0), (1, )]])
self.assertEqual(
list(tgrep.tgrep_positions("* >> S", [tree])),
[[(0, ), (0, 0), (1, ), (1, 0)]],
)
self.assertEqual(list(tgrep.tgrep_positions("* >>, S", [tree])),
[[(0, ), (0, 0)]])
self.assertEqual(list(tgrep.tgrep_positions("* >>' S", [tree])),
[[(1, ), (1, 0)]])
# Known issue:
# self.assertEqual(list(tgrep.tgrep_positions('* !>> S', [tree])),
# [[()]])
self.assertEqual(list(tgrep.tgrep_positions("* << T", [tree])),
[[(), (0, )]])
self.assertEqual(list(tgrep.tgrep_positions("* <<' T", [tree])),
[[(0, )]])
self.assertEqual(list(tgrep.tgrep_positions("* <<1 N", [tree])),
[[(1, )]])
self.assertEqual(
list(tgrep.tgrep_positions("* !<< T", [tree])),
[[(0, 0), (0, 0, 0), (1, ), (1, 0), (1, 0, 0)]],
)
tree = ParentedTree.fromstring("(S (A (T x)) (B (T x) (N x )))")
self.assertEqual(list(tgrep.tgrep_positions("* <: T", [tree])),
[[(0, )]])
self.assertEqual(list(tgrep.tgrep_positions("* < T", [tree])),
[[(0, ), (1, )]])
self.assertEqual(
list(tgrep.tgrep_positions("* !<: T", [tree])),
[[(), (0, 0), (0, 0, 0), (1, ), (1, 0), (1, 0, 0), (1, 1),
(1, 1, 0)]],
)
self.assertEqual(list(tgrep.tgrep_positions("* !<: T > S", [tree])),
[[(1, )]])
tree = ParentedTree.fromstring("(S (T (A x) (B x)) (T (C x)))")
self.assertEqual(list(tgrep.tgrep_positions("* >: T", [tree])),
[[(1, 0)]])
self.assertEqual(
list(tgrep.tgrep_positions("* !>: T", [tree])),
[[(), (0, ), (0, 0), (0, 0, 0), (0, 1), (0, 1, 0), (1, ),
(1, 0, 0)]],
)
tree = ParentedTree.fromstring("(S (A (B (C (D (E (T x))))))"
" (A (B (C (D (E (T x))) (N x)))))")
self.assertEqual(
list(tgrep.tgrep_positions("* <<: T", [tree])),
[[
(0, ),
(0, 0),
(0, 0, 0),
(0, 0, 0, 0),
(0, 0, 0, 0, 0),
(1, 0, 0, 0),
(1, 0, 0, 0, 0),
]],
)
self.assertEqual(
list(tgrep.tgrep_positions("* >>: A", [tree])),
[[
(0, 0),
(0, 0, 0),
(0, 0, 0, 0),
(0, 0, 0, 0, 0),
(0, 0, 0, 0, 0, 0),
(1, 0),
(1, 0, 0),
]],
)
def tests_rel_indexed_children(self):
"""
Test matching nodes based on their index in their parent node.
"""
tree = ParentedTree.fromstring("(S (A x) (B x) (C x))")
self.assertEqual(list(tgrep.tgrep_positions("* >, S", [tree])),
[[(0, )]])
self.assertEqual(list(tgrep.tgrep_positions("* >1 S", [tree])),
[[(0, )]])
self.assertEqual(list(tgrep.tgrep_positions("* >2 S", [tree])),
[[(1, )]])
self.assertEqual(list(tgrep.tgrep_positions("* >3 S", [tree])),
[[(2, )]])
self.assertEqual(list(tgrep.tgrep_positions("* >' S", [tree])),
[[(2, )]])
self.assertEqual(list(tgrep.tgrep_positions("* >-1 S", [tree])),
[[(2, )]])
self.assertEqual(list(tgrep.tgrep_positions("* >-2 S", [tree])),
[[(1, )]])
self.assertEqual(list(tgrep.tgrep_positions("* >-3 S", [tree])),
[[(0, )]])
tree = ParentedTree.fromstring(
"(S (D (A x) (B x) (C x)) (E (B x) (C x) (A x)) "
"(F (C x) (A x) (B x)))")
self.assertEqual(list(tgrep.tgrep_positions("* <, A", [tree])),
[[(0, )]])
self.assertEqual(list(tgrep.tgrep_positions("* <1 A", [tree])),
[[(0, )]])
self.assertEqual(list(tgrep.tgrep_positions("* <2 A", [tree])),
[[(2, )]])
self.assertEqual(list(tgrep.tgrep_positions("* <3 A", [tree])),
[[(1, )]])
self.assertEqual(list(tgrep.tgrep_positions("* <' A", [tree])),
[[(1, )]])
self.assertEqual(list(tgrep.tgrep_positions("* <-1 A", [tree])),
[[(1, )]])
self.assertEqual(list(tgrep.tgrep_positions("* <-2 A", [tree])),
[[(2, )]])
self.assertEqual(list(tgrep.tgrep_positions("* <-3 A", [tree])),
[[(0, )]])