a90c6dd460
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8
60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <regex>
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// template <class charT, class traits = regex_traits<charT>> class basic_regex;
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// basic_regex(const charT* p, flag_type f = regex_constants::ECMAScript);
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#include <regex>
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#include <cassert>
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template <class CharT>
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void
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test(const CharT* p, std::regex_constants::syntax_option_type f, unsigned mc)
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{
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std::basic_regex<CharT> r(p, f);
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assert(r.flags() == f);
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assert(r.mark_count() == mc);
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}
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int main()
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{
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test("\\(a\\)", std::regex_constants::basic, 1);
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test("\\(a[bc]\\)", std::regex_constants::basic, 1);
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test("\\(a\\([bc]\\)\\)", std::regex_constants::basic, 2);
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test("(a([bc]))", std::regex_constants::basic, 0);
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test("\\(a\\)", std::regex_constants::extended, 0);
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test("\\(a[bc]\\)", std::regex_constants::extended, 0);
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test("\\(a\\([bc]\\)\\)", std::regex_constants::extended, 0);
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test("(a([bc]))", std::regex_constants::extended, 2);
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test("\\(a\\)", std::regex_constants::ECMAScript, 0);
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test("\\(a[bc]\\)", std::regex_constants::ECMAScript, 0);
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test("\\(a\\([bc]\\)\\)", std::regex_constants::ECMAScript, 0);
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test("(a([bc]))", std::regex_constants::ECMAScript, 2);
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test("\\(a\\)", std::regex_constants::awk, 0);
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test("\\(a[bc]\\)", std::regex_constants::awk, 0);
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test("\\(a\\([bc]\\)\\)", std::regex_constants::awk, 0);
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test("(a([bc]))", std::regex_constants::awk, 2);
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test("\\(a\\)", std::regex_constants::grep, 1);
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test("\\(a[bc]\\)", std::regex_constants::grep, 1);
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test("\\(a\\([bc]\\)\\)", std::regex_constants::grep, 2);
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test("(a([bc]))", std::regex_constants::grep, 0);
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test("\\(a\\)", std::regex_constants::egrep, 0);
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test("\\(a[bc]\\)", std::regex_constants::egrep, 0);
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test("\\(a\\([bc]\\)\\)", std::regex_constants::egrep, 0);
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test("(a([bc]))", std::regex_constants::egrep, 2);
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}
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