1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <regex>
11
12// template <class charT> struct regex_traits;
13
14// template <class ForwardIterator>
15//   char_class_type
16//   lookup_classname(ForwardIterator first, ForwardIterator last,
17//                    bool icase = false) const;
18
19#include <regex>
20#include <cassert>
21#include "test_macros.h"
22#include "test_iterators.h"
23
24template <class char_type>
25void
26test(const char_type* A,
27     typename std::regex_traits<char_type>::char_class_type expected,
28     bool icase = false)
29{
30    std::regex_traits<char_type> t;
31    typedef forward_iterator<const char_type*> F;
32    assert(t.lookup_classname(F(A), F(A + t.length(A)), icase) == expected);
33}
34
35int main()
36{
37//  if __regex_word is not distinct from all the classes, bad things happen
38//  See https://bugs.llvm.org/show_bug.cgi?id=26476 for an example.
39    assert((std::ctype_base::space  & std::regex_traits<char>::__regex_word) == 0);
40    assert((std::ctype_base::print  & std::regex_traits<char>::__regex_word) == 0);
41    assert((std::ctype_base::cntrl  & std::regex_traits<char>::__regex_word) == 0);
42    assert((std::ctype_base::upper  & std::regex_traits<char>::__regex_word) == 0);
43    assert((std::ctype_base::lower  & std::regex_traits<char>::__regex_word) == 0);
44    assert((std::ctype_base::alpha  & std::regex_traits<char>::__regex_word) == 0);
45    assert((std::ctype_base::digit  & std::regex_traits<char>::__regex_word) == 0);
46    assert((std::ctype_base::punct  & std::regex_traits<char>::__regex_word) == 0);
47    assert((std::ctype_base::xdigit & std::regex_traits<char>::__regex_word) == 0);
48    assert((std::ctype_base::blank  & std::regex_traits<char>::__regex_word) == 0);
49
50    test("d", std::ctype_base::digit);
51    test("D", std::ctype_base::digit);
52    test("d", std::ctype_base::digit, true);
53    test("D", std::ctype_base::digit, true);
54
55    test("w", std::regex_traits<char>::__regex_word | std::ctype_base::alnum
56                      | std::ctype_base::upper | std::ctype_base::lower);
57    test("W", std::regex_traits<char>::__regex_word | std::ctype_base::alnum
58                      | std::ctype_base::upper | std::ctype_base::lower);
59    test("w", std::regex_traits<char>::__regex_word | std::ctype_base::alnum
60                      | std::ctype_base::upper | std::ctype_base::lower, true);
61    test("W", std::regex_traits<char>::__regex_word | std::ctype_base::alnum
62                      | std::ctype_base::upper | std::ctype_base::lower, true);
63
64    test("s", std::ctype_base::space);
65    test("S", std::ctype_base::space);
66    test("s", std::ctype_base::space, true);
67    test("S", std::ctype_base::space, true);
68
69    test("alnum", std::ctype_base::alnum);
70    test("AlNum", std::ctype_base::alnum);
71    test("alnum", std::ctype_base::alnum, true);
72    test("AlNum", std::ctype_base::alnum, true);
73
74    test("alpha", std::ctype_base::alpha);
75    test("Alpha", std::ctype_base::alpha);
76    test("alpha", std::ctype_base::alpha, true);
77    test("Alpha", std::ctype_base::alpha, true);
78
79    test("blank", std::ctype_base::blank);
80    test("Blank", std::ctype_base::blank);
81    test("blank", std::ctype_base::blank, true);
82    test("Blank", std::ctype_base::blank, true);
83
84    test("cntrl", std::ctype_base::cntrl);
85    test("Cntrl", std::ctype_base::cntrl);
86    test("cntrl", std::ctype_base::cntrl, true);
87    test("Cntrl", std::ctype_base::cntrl, true);
88
89    test("digit", std::ctype_base::digit);
90    test("Digit", std::ctype_base::digit);
91    test("digit", std::ctype_base::digit, true);
92    test("Digit", std::ctype_base::digit, true);
93
94    test("digit", std::ctype_base::digit);
95    test("DIGIT", std::ctype_base::digit);
96    test("digit", std::ctype_base::digit, true);
97    test("Digit", std::ctype_base::digit, true);
98
99    test("graph", std::ctype_base::graph);
100    test("GRAPH", std::ctype_base::graph);
101    test("graph", std::ctype_base::graph, true);
102    test("Graph", std::ctype_base::graph, true);
103
104    test("lower", std::ctype_base::lower);
105    test("LOWER", std::ctype_base::lower);
106    test("lower", std::ctype_base::lower | std::ctype_base::alpha, true);
107    test("Lower", std::ctype_base::lower | std::ctype_base::alpha, true);
108
109    test("print", std::ctype_base::print);
110    test("PRINT", std::ctype_base::print);
111    test("print", std::ctype_base::print, true);
112    test("Print", std::ctype_base::print, true);
113
114    test("punct", std::ctype_base::punct);
115    test("PUNCT", std::ctype_base::punct);
116    test("punct", std::ctype_base::punct, true);
117    test("Punct", std::ctype_base::punct, true);
118
119    test("space", std::ctype_base::space);
120    test("SPACE", std::ctype_base::space);
121    test("space", std::ctype_base::space, true);
122    test("Space", std::ctype_base::space, true);
123
124    test("upper", std::ctype_base::upper);
125    test("UPPER", std::ctype_base::upper);
126    test("upper", std::ctype_base::upper | std::ctype_base::alpha, true);
127    test("Upper", std::ctype_base::upper | std::ctype_base::alpha, true);
128
129    test("xdigit", std::ctype_base::xdigit);
130    test("XDIGIT", std::ctype_base::xdigit);
131    test("xdigit", std::ctype_base::xdigit, true);
132    test("Xdigit", std::ctype_base::xdigit, true);
133
134    test("dig", std::ctype_base::mask());
135    test("", std::ctype_base::mask());
136    test("digits", std::ctype_base::mask());
137
138    test(L"d", std::ctype_base::digit);
139    test(L"D", std::ctype_base::digit);
140    test(L"d", std::ctype_base::digit, true);
141    test(L"D", std::ctype_base::digit, true);
142
143    test(L"w", std::regex_traits<wchar_t>::__regex_word | std::ctype_base::alnum
144                      | std::ctype_base::upper | std::ctype_base::lower);
145    test(L"W", std::regex_traits<wchar_t>::__regex_word | std::ctype_base::alnum
146                      | std::ctype_base::upper | std::ctype_base::lower);
147    test(L"w", std::regex_traits<wchar_t>::__regex_word | std::ctype_base::alnum
148                      | std::ctype_base::upper | std::ctype_base::lower, true);
149    test(L"W", std::regex_traits<wchar_t>::__regex_word | std::ctype_base::alnum
150                      | std::ctype_base::upper | std::ctype_base::lower, true);
151
152    test(L"s", std::ctype_base::space);
153    test(L"S", std::ctype_base::space);
154    test(L"s", std::ctype_base::space, true);
155    test(L"S", std::ctype_base::space, true);
156
157    test(L"alnum", std::ctype_base::alnum);
158    test(L"AlNum", std::ctype_base::alnum);
159    test(L"alnum", std::ctype_base::alnum, true);
160    test(L"AlNum", std::ctype_base::alnum, true);
161
162    test(L"alpha", std::ctype_base::alpha);
163    test(L"Alpha", std::ctype_base::alpha);
164    test(L"alpha", std::ctype_base::alpha, true);
165    test(L"Alpha", std::ctype_base::alpha, true);
166
167    test(L"blank", std::ctype_base::blank);
168    test(L"Blank", std::ctype_base::blank);
169    test(L"blank", std::ctype_base::blank, true);
170    test(L"Blank", std::ctype_base::blank, true);
171
172    test(L"cntrl", std::ctype_base::cntrl);
173    test(L"Cntrl", std::ctype_base::cntrl);
174    test(L"cntrl", std::ctype_base::cntrl, true);
175    test(L"Cntrl", std::ctype_base::cntrl, true);
176
177    test(L"digit", std::ctype_base::digit);
178    test(L"Digit", std::ctype_base::digit);
179    test(L"digit", std::ctype_base::digit, true);
180    test(L"Digit", std::ctype_base::digit, true);
181
182    test(L"digit", std::ctype_base::digit);
183    test(L"DIGIT", std::ctype_base::digit);
184    test(L"digit", std::ctype_base::digit, true);
185    test(L"Digit", std::ctype_base::digit, true);
186
187    test(L"graph", std::ctype_base::graph);
188    test(L"GRAPH", std::ctype_base::graph);
189    test(L"graph", std::ctype_base::graph, true);
190    test(L"Graph", std::ctype_base::graph, true);
191
192    test(L"lower", std::ctype_base::lower);
193    test(L"LOWER", std::ctype_base::lower);
194    test(L"lower", std::ctype_base::lower | std::ctype_base::alpha, true);
195    test(L"Lower", std::ctype_base::lower | std::ctype_base::alpha, true);
196
197    test(L"print", std::ctype_base::print);
198    test(L"PRINT", std::ctype_base::print);
199    test(L"print", std::ctype_base::print, true);
200    test(L"Print", std::ctype_base::print, true);
201
202    test(L"punct", std::ctype_base::punct);
203    test(L"PUNCT", std::ctype_base::punct);
204    test(L"punct", std::ctype_base::punct, true);
205    test(L"Punct", std::ctype_base::punct, true);
206
207    test(L"space", std::ctype_base::space);
208    test(L"SPACE", std::ctype_base::space);
209    test(L"space", std::ctype_base::space, true);
210    test(L"Space", std::ctype_base::space, true);
211
212    test(L"upper", std::ctype_base::upper);
213    test(L"UPPER", std::ctype_base::upper);
214    test(L"upper", std::ctype_base::upper | std::ctype_base::alpha, true);
215    test(L"Upper", std::ctype_base::upper | std::ctype_base::alpha, true);
216
217    test(L"xdigit", std::ctype_base::xdigit);
218    test(L"XDIGIT", std::ctype_base::xdigit);
219    test(L"xdigit", std::ctype_base::xdigit, true);
220    test(L"Xdigit", std::ctype_base::xdigit, true);
221
222    test(L"dig", std::ctype_base::mask());
223    test(L"", std::ctype_base::mask());
224    test(L"digits", std::ctype_base::mask());
225}
226