1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
require File.expand_path('../helper', __FILE__)
class MatchTest < Test::Unit::TestCase
def test_string_equality
match = Match.new('hello')
assert_equal('hello', match)
end
def test_match_equality
match1 = Match.new('a')
match2 = Match.new('a')
assert(match1 == match2)
assert(match2 == match1)
end
def test_match_inequality
match1 = Match.new('a')
match2 = Match.new('b')
assert_equal(false, match1 == match2)
assert_equal(false, match2 == match1)
end
def test_source
match1 = Match.new('abcdef')
assert_equal 'abcdef', match1.source
path = Struct.new(:to_path).new(__FILE__)
match2 = Match.new(Input.new(path))
assert_equal path, match2.source
end
def test_string
match1 = Match.new('abcdef')
assert_equal 'abcdef', match1.string
match2 = Match.new('abcdef', [Rule.for('bcd'), -1, 3], 1)
assert_equal 'bcd', match2.string
end
def test_matches
a = Rule.for('a')
b = Rule.for('b')
c = Rule.for('c')
s = Rule.for([ a, b, c ])
r = Repeat.new(s, 0, Infinity)
events = [
r,
s,
a, CLOSE, 1,
b, CLOSE, 1,
c, CLOSE, 1,
CLOSE, 3,
s,
a, CLOSE, 1,
b, CLOSE, 1,
c, CLOSE, 1,
CLOSE, 3,
s,
a, CLOSE, 1,
b, CLOSE, 1,
c, CLOSE, 1,
CLOSE, 3,
CLOSE, 9
]
match = Match.new("abcabcabc", events)
assert(match.matches)
assert_equal(3, match.matches.length)
sub_events = [
s,
a, CLOSE, 1,
b, CLOSE, 1,
c, CLOSE, 1,
CLOSE, 3
]
match.matches.each_with_index do |m, i|
assert_equal(sub_events, m.events)
assert_equal(i*3, m.offset)
assert_equal(3, m.length)
assert_equal("abc", m.string)
assert_equal("abc", m)
assert(m.matches)
assert_equal(3, m.matches.length)
m.matches.each_with_index do |m2,i2|
assert_equal(i*3+i2, m2.offset)
assert_equal(1, m2.length)
end
end
end
grammar :Addition do
rule :additive do
all(:number, :plus, label(any(:additive, :number), 'term')) {
capture(:number).value + capture(:term).value
}
end
rule :number do
all(/[0-9]+/, :space) {
to_str.strip.to_i
}
end
rule :plus do
all('+', :space)
end
rule :space do
/[ \t]*/
end
end
def test_matches2
match = Addition.parse('+', :root => :plus)
assert(match)
assert(match.matches)
assert_equal(2, match.matches.length)
match = Addition.parse('+ ', :root => :plus)
assert(match)
assert(match.matches)
assert_equal(2, match.matches.length)
match = Addition.parse('99', :root => :number)
assert(match)
assert(match.matches)
assert_equal(2, match.matches.length)
match = Addition.parse('99 ', :root => :number)
assert(match)
assert(match.matches)
assert_equal(2, match.matches.length)
match = Addition.parse('1+2')
assert(match)
assert(match.matches)
assert_equal(3, match.matches.length)
end
def test_capture
match = Addition.parse('1+2')
assert(match.capture(:number))
assert_equal(1, match.capture(:number).value)
end
def test_captures
match = Addition.parse('1+2')
assert(match.captures)
assert_equal(7, match.captures.size)
end
def test_captures_with_a_name
match = Addition.parse('1+2')
assert(match.captures(:number))
assert_equal(2, match.captures(:number).size)
assert_equal([1, 2], match.captures(:number).map(&:value))
end
end
|
