62 lines
2.5 KiB
C++
62 lines
2.5 KiB
C++
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//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. 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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// template <class ST, class SA>
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// basic_regex(const basic_string<charT, ST, SA>& s,
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// flag_type f = regex_constants::ECMAScript);
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#include <regex>
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#include <cassert>
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template <class String>
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void
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test(const String& p, std::regex_constants::syntax_option_type f, unsigned mc)
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{
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std::basic_regex<typename String::value_type> 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(std::string("\\(a\\)"), std::regex_constants::basic, 1);
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test(std::string("\\(a[bc]\\)"), std::regex_constants::basic, 1);
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test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::basic, 2);
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test(std::string("(a([bc]))"), std::regex_constants::basic, 0);
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test(std::string("\\(a\\)"), std::regex_constants::extended, 0);
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test(std::string("\\(a[bc]\\)"), std::regex_constants::extended, 0);
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test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::extended, 0);
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test(std::string("(a([bc]))"), std::regex_constants::extended, 2);
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test(std::string("\\(a\\)"), std::regex_constants::ECMAScript, 0);
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test(std::string("\\(a[bc]\\)"), std::regex_constants::ECMAScript, 0);
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test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::ECMAScript, 0);
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test(std::string("(a([bc]))"), std::regex_constants::ECMAScript, 2);
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test(std::string("\\(a\\)"), std::regex_constants::awk, 0);
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test(std::string("\\(a[bc]\\)"), std::regex_constants::awk, 0);
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test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::awk, 0);
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test(std::string("(a([bc]))"), std::regex_constants::awk, 2);
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test(std::string("\\(a\\)"), std::regex_constants::grep, 1);
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test(std::string("\\(a[bc]\\)"), std::regex_constants::grep, 1);
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test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::grep, 2);
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test(std::string("(a([bc]))"), std::regex_constants::grep, 0);
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test(std::string("\\(a\\)"), std::regex_constants::egrep, 0);
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test(std::string("\\(a[bc]\\)"), std::regex_constants::egrep, 0);
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test(std::string("\\(a\\([bc]\\)\\)"), std::regex_constants::egrep, 0);
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test(std::string("(a([bc]))"), std::regex_constants::egrep, 2);
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}
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