forked from OSchip/llvm-project
249 lines
9.7 KiB
C++
249 lines
9.7 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <regex>
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// template <class charT> struct regex_traits;
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// template <class ForwardIterator>
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// char_class_type
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// lookup_classname(ForwardIterator first, ForwardIterator last,
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// bool icase = false) const;
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#include <regex>
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#include <cassert>
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#include "test_macros.h"
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#include "test_iterators.h"
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template <class char_type>
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void
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test(const char_type* A,
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typename std::regex_traits<char_type>::char_class_type expected,
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bool icase = false)
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{
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typedef typename std::regex_traits<char_type>::char_class_type char_class_type;
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std::regex_traits<char_type> t;
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typedef forward_iterator<const char_type*> F;
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char_class_type result = t.lookup_classname(F(A), F(A + t.length(A)), icase);
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assert(result == expected);
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}
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template <class char_type>
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void
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test_w(const char_type* A,
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typename std::regex_traits<char_type>::char_class_type expected,
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bool icase = false)
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{
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typedef typename std::regex_traits<char_type>::char_class_type char_class_type;
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std::regex_traits<char_type> t;
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typedef forward_iterator<const char_type*> F;
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char_class_type result = t.lookup_classname(F(A), F(A + t.length(A)), icase);
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assert((result & expected) == expected);
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LIBCPP_ASSERT((expected | std::regex_traits<char_type>::__regex_word) == result);
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const bool matches_underscore = t.isctype('_', result);
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if (result != expected)
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assert(matches_underscore && "expected to match underscore");
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else
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assert(!matches_underscore && "should not match underscore");
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}
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int main(int, char**)
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{
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// if __regex_word is not distinct from all the classes, bad things happen
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// See https://bugs.llvm.org/show_bug.cgi?id=26476 for an example.
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LIBCPP_ASSERT((std::ctype_base::space & std::regex_traits<char>::__regex_word) == 0);
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LIBCPP_ASSERT((std::ctype_base::print & std::regex_traits<char>::__regex_word) == 0);
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LIBCPP_ASSERT((std::ctype_base::cntrl & std::regex_traits<char>::__regex_word) == 0);
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LIBCPP_ASSERT((std::ctype_base::upper & std::regex_traits<char>::__regex_word) == 0);
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LIBCPP_ASSERT((std::ctype_base::lower & std::regex_traits<char>::__regex_word) == 0);
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LIBCPP_ASSERT((std::ctype_base::alpha & std::regex_traits<char>::__regex_word) == 0);
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LIBCPP_ASSERT((std::ctype_base::digit & std::regex_traits<char>::__regex_word) == 0);
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LIBCPP_ASSERT((std::ctype_base::punct & std::regex_traits<char>::__regex_word) == 0);
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LIBCPP_ASSERT((std::ctype_base::xdigit & std::regex_traits<char>::__regex_word) == 0);
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LIBCPP_ASSERT((std::ctype_base::blank & std::regex_traits<char>::__regex_word) == 0);
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test("d", std::ctype_base::digit);
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test("D", std::ctype_base::digit);
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test("d", std::ctype_base::digit, true);
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test("D", std::ctype_base::digit, true);
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test_w("w", std::ctype_base::alnum
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| std::ctype_base::upper | std::ctype_base::lower);
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test_w("W", std::ctype_base::alnum
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| std::ctype_base::upper | std::ctype_base::lower);
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test_w("w", std::ctype_base::alnum
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| std::ctype_base::upper | std::ctype_base::lower, true);
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test_w("W", std::ctype_base::alnum
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| std::ctype_base::upper | std::ctype_base::lower, true);
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test("s", std::ctype_base::space);
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test("S", std::ctype_base::space);
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test("s", std::ctype_base::space, true);
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test("S", std::ctype_base::space, true);
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test("alnum", std::ctype_base::alnum);
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test("AlNum", std::ctype_base::alnum);
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test("alnum", std::ctype_base::alnum, true);
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test("AlNum", std::ctype_base::alnum, true);
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test("alpha", std::ctype_base::alpha);
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test("Alpha", std::ctype_base::alpha);
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test("alpha", std::ctype_base::alpha, true);
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test("Alpha", std::ctype_base::alpha, true);
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test("blank", std::ctype_base::blank);
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test("Blank", std::ctype_base::blank);
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test("blank", std::ctype_base::blank, true);
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test("Blank", std::ctype_base::blank, true);
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test("cntrl", std::ctype_base::cntrl);
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test("Cntrl", std::ctype_base::cntrl);
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test("cntrl", std::ctype_base::cntrl, true);
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test("Cntrl", std::ctype_base::cntrl, true);
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test("digit", std::ctype_base::digit);
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test("Digit", std::ctype_base::digit);
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test("digit", std::ctype_base::digit, true);
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test("Digit", std::ctype_base::digit, true);
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test("digit", std::ctype_base::digit);
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test("DIGIT", std::ctype_base::digit);
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test("digit", std::ctype_base::digit, true);
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test("Digit", std::ctype_base::digit, true);
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test("graph", std::ctype_base::graph);
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test("GRAPH", std::ctype_base::graph);
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test("graph", std::ctype_base::graph, true);
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test("Graph", std::ctype_base::graph, true);
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test("lower", std::ctype_base::lower);
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test("LOWER", std::ctype_base::lower);
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test("lower", std::ctype_base::lower | std::ctype_base::alpha, true);
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test("Lower", std::ctype_base::lower | std::ctype_base::alpha, true);
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test("print", std::ctype_base::print);
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test("PRINT", std::ctype_base::print);
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test("print", std::ctype_base::print, true);
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test("Print", std::ctype_base::print, true);
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test("punct", std::ctype_base::punct);
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test("PUNCT", std::ctype_base::punct);
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test("punct", std::ctype_base::punct, true);
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test("Punct", std::ctype_base::punct, true);
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test("space", std::ctype_base::space);
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test("SPACE", std::ctype_base::space);
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test("space", std::ctype_base::space, true);
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test("Space", std::ctype_base::space, true);
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test("upper", std::ctype_base::upper);
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test("UPPER", std::ctype_base::upper);
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test("upper", std::ctype_base::upper | std::ctype_base::alpha, true);
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test("Upper", std::ctype_base::upper | std::ctype_base::alpha, true);
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test("xdigit", std::ctype_base::xdigit);
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test("XDIGIT", std::ctype_base::xdigit);
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test("xdigit", std::ctype_base::xdigit, true);
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test("Xdigit", std::ctype_base::xdigit, true);
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test("dig", std::ctype_base::mask());
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test("", std::ctype_base::mask());
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test("digits", std::ctype_base::mask());
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test(L"d", std::ctype_base::digit);
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test(L"D", std::ctype_base::digit);
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test(L"d", std::ctype_base::digit, true);
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test(L"D", std::ctype_base::digit, true);
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test_w(L"w", std::ctype_base::alnum
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| std::ctype_base::upper | std::ctype_base::lower);
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test_w(L"W", std::ctype_base::alnum
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| std::ctype_base::upper | std::ctype_base::lower);
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test_w(L"w", std::ctype_base::alnum
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| std::ctype_base::upper | std::ctype_base::lower, true);
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test_w(L"W", std::ctype_base::alnum
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| std::ctype_base::upper | std::ctype_base::lower, true);
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test(L"s", std::ctype_base::space);
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test(L"S", std::ctype_base::space);
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test(L"s", std::ctype_base::space, true);
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test(L"S", std::ctype_base::space, true);
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test(L"alnum", std::ctype_base::alnum);
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test(L"AlNum", std::ctype_base::alnum);
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test(L"alnum", std::ctype_base::alnum, true);
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test(L"AlNum", std::ctype_base::alnum, true);
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test(L"alpha", std::ctype_base::alpha);
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test(L"Alpha", std::ctype_base::alpha);
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test(L"alpha", std::ctype_base::alpha, true);
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test(L"Alpha", std::ctype_base::alpha, true);
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test(L"blank", std::ctype_base::blank);
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test(L"Blank", std::ctype_base::blank);
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test(L"blank", std::ctype_base::blank, true);
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test(L"Blank", std::ctype_base::blank, true);
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test(L"cntrl", std::ctype_base::cntrl);
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test(L"Cntrl", std::ctype_base::cntrl);
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test(L"cntrl", std::ctype_base::cntrl, true);
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test(L"Cntrl", std::ctype_base::cntrl, true);
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test(L"digit", std::ctype_base::digit);
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test(L"Digit", std::ctype_base::digit);
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test(L"digit", std::ctype_base::digit, true);
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test(L"Digit", std::ctype_base::digit, true);
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test(L"digit", std::ctype_base::digit);
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test(L"DIGIT", std::ctype_base::digit);
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test(L"digit", std::ctype_base::digit, true);
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test(L"Digit", std::ctype_base::digit, true);
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test(L"graph", std::ctype_base::graph);
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test(L"GRAPH", std::ctype_base::graph);
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test(L"graph", std::ctype_base::graph, true);
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test(L"Graph", std::ctype_base::graph, true);
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test(L"lower", std::ctype_base::lower);
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test(L"LOWER", std::ctype_base::lower);
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test(L"lower", std::ctype_base::lower | std::ctype_base::alpha, true);
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test(L"Lower", std::ctype_base::lower | std::ctype_base::alpha, true);
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test(L"print", std::ctype_base::print);
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test(L"PRINT", std::ctype_base::print);
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test(L"print", std::ctype_base::print, true);
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test(L"Print", std::ctype_base::print, true);
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test(L"punct", std::ctype_base::punct);
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test(L"PUNCT", std::ctype_base::punct);
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test(L"punct", std::ctype_base::punct, true);
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test(L"Punct", std::ctype_base::punct, true);
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test(L"space", std::ctype_base::space);
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test(L"SPACE", std::ctype_base::space);
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test(L"space", std::ctype_base::space, true);
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test(L"Space", std::ctype_base::space, true);
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test(L"upper", std::ctype_base::upper);
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test(L"UPPER", std::ctype_base::upper);
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test(L"upper", std::ctype_base::upper | std::ctype_base::alpha, true);
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test(L"Upper", std::ctype_base::upper | std::ctype_base::alpha, true);
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test(L"xdigit", std::ctype_base::xdigit);
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test(L"XDIGIT", std::ctype_base::xdigit);
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test(L"xdigit", std::ctype_base::xdigit, true);
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test(L"Xdigit", std::ctype_base::xdigit, true);
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test(L"dig", std::ctype_base::mask());
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test(L"", std::ctype_base::mask());
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test(L"digits", std::ctype_base::mask());
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return 0;
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}
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