forked from OSchip/llvm-project
71 lines
3.3 KiB
C++
71 lines
3.3 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(initializer_list<charT> il,
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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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#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
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void
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test(std::initializer_list<char> il, std::regex_constants::syntax_option_type f, unsigned mc)
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{
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std::basic_regex<char> r(il, 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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#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
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int main()
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{
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#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
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std::string s1("\\(a\\)");
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std::string s2("\\(a[bc]\\)");
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std::string s3("\\(a\\([bc]\\)\\)");
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std::string s4("(a([bc]))");
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test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::basic, 1);
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test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::basic, 1);
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test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::basic, 2);
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test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::basic, 0);
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test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::extended, 0);
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test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::extended, 0);
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test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::extended, 0);
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test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::extended, 2);
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test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::ECMAScript, 0);
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test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::ECMAScript, 0);
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test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::ECMAScript, 0);
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test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::ECMAScript, 2);
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test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::awk, 0);
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test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::awk, 0);
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test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::awk, 0);
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test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::awk, 2);
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test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::grep, 1);
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test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::grep, 1);
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test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::grep, 2);
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test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::grep, 0);
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test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::egrep, 0);
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test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::egrep, 0);
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test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::egrep, 0);
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test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::egrep, 2);
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#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
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}
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