1<?php
2
3/**
4 * Hoa
5 *
6 *
7 * @license
8 *
9 * New BSD License
10 *
11 * Copyright © 2007-2017, Hoa community. All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions are met:
15 *     * Redistributions of source code must retain the above copyright
16 *       notice, this list of conditions and the following disclaimer.
17 *     * Redistributions in binary form must reproduce the above copyright
18 *       notice, this list of conditions and the following disclaimer in the
19 *       documentation and/or other materials provided with the distribution.
20 *     * Neither the name of the Hoa nor the names of its contributors may be
21 *       used to endorse or promote products derived from this software without
22 *       specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
35 */
36
37namespace Hoa\Compiler\Test\Integration\Llk;
38
39use Hoa\Compiler as LUT;
40use Hoa\File;
41use Hoa\Test;
42
43/**
44 * Class \Hoa\Compiler\Test\Integration\Documentation.
45 *
46 * Test suite of the examples in the documentation.
47 *
48 * @copyright  Copyright © 2007-2017 Hoa community
49 * @license    New BSD License
50 */
51class Documentation extends Test\Integration\Suite implements Test\Decorrelated
52{
53    public function case_without_unification()
54    {
55        $_grammar = <<<GRAMMAR
56%token  quote   '|"
57%token  string  \w+
58
59rule:
60    ::quote:: <string> ::quote::
61GRAMMAR;
62
63        $this
64            ->given(
65                $grammar = new File\ReadWrite('hoa://Test/Vfs/WithoutUnification.pp?type=file'),
66                $grammar->writeAll($_grammar),
67                $compiler = LUT\Llk::load($grammar)
68            )
69            ->when($result = $compiler->parse('"foo"', null, false))
70            ->then
71                ->boolean($result)
72                    ->isTrue()
73
74            ->when($result = $compiler->parse('\'foo"', null, false))
75            ->then
76                ->boolean($result)
77                    ->isTrue()
78
79            ->when($result = $compiler->parse('"foo\'', null, false))
80            ->then
81                ->boolean($result)
82                    ->isTrue()
83
84            ->when($result = $compiler->parse('\'foo\'', null, false))
85            ->then
86                ->boolean($result)
87                    ->isTrue();
88    }
89
90    public function case_unification()
91    {
92        $_grammar = <<<GRAMMAR
93%token  quote   '|"
94%token  string  \w+
95
96rule:
97    ::quote[0]:: <string> ::quote[0]::
98GRAMMAR;
99
100        $this
101            ->given(
102                $grammar = new File\ReadWrite('hoa://Test/Vfs/Unification.pp?type=file'),
103                $grammar->writeAll($_grammar),
104                $compiler = LUT\Llk::load($grammar)
105            )
106            ->when($result = $compiler->parse('"foo"', null, false))
107            ->then
108                ->boolean($result)
109                    ->isTrue()
110
111            ->when($result = $compiler->parse('\'foo\'', null, false))
112            ->then
113                ->boolean($result)
114                    ->isTrue()
115
116            ->exception(function () use (&$compiler) {
117                $compiler->parse('\'foo"', null, false);
118            })
119                ->isInstanceOf(LUT\Exception\UnexpectedToken::class)
120
121            ->exception(function () use (&$compiler) {
122                $compiler->parse('"foo\'', null, false);
123            })
124                ->isInstanceOf(LUT\Exception\UnexpectedToken::class);
125    }
126
127    public function case_unification_palindrome()
128    {
129        $_grammar = <<<GRAMMAR
130%token t \w
131
132root:
133    ::t[0]:: root()? ::t[0]::
134GRAMMAR;
135
136        $this
137            ->given(
138                $grammar = new File\ReadWrite('hoa://Test/Vfs/Palindrome.pp?type=file'),
139                $grammar->writeAll($_grammar),
140                $compiler = LUT\Llk::load($grammar)
141            )
142            ->when($result = $compiler->parse('aa', null, false))
143            ->then
144                ->boolean($result)
145                    ->isTrue()
146
147            ->when($result = $compiler->parse('abba', null, false))
148            ->then
149                ->boolean($result)
150                    ->isTrue()
151
152            ->when($result = $compiler->parse('abccba', null, false))
153            ->then
154                ->boolean($result)
155                    ->isTrue()
156
157            ->when($result = $compiler->parse('abcddcba', null, false))
158            ->then
159                ->boolean($result)
160                    ->isTrue()
161
162            ->exception(function () use (&$compiler) {
163                $compiler->parse('abcdcba', null, false);
164            })
165                ->isInstanceOf(LUT\Exception\UnexpectedToken::class);
166    }
167}
168