71 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// UNSUPPORTED: c++0310 11// <regex>12 13// template <class charT, class traits = regex_traits<charT>> class basic_regex;14 15// basic_regex(initializer_list<charT> il,16// flag_type f = regex_constants::ECMAScript);17 18#include <regex>19#include <cassert>20#include "test_macros.h"21 22 23void24test(std::initializer_list<char> il, std::regex_constants::syntax_option_type f, unsigned mc)25{26 std::basic_regex<char> r(il, f);27 assert(r.flags() == f);28 assert(r.mark_count() == mc);29}30 31 32int main(int, char**)33{34 std::string s1("\\(a\\)");35 std::string s2("\\(a[bc]\\)");36 std::string s3("\\(a\\([bc]\\)\\)");37 std::string s4("(a([bc]))");38 39 test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::basic, 1);40 test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::basic, 1);41 test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::basic, 2);42 test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::basic, 0);43 44 test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::extended, 0);45 test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::extended, 0);46 test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::extended, 0);47 test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::extended, 2);48 49 test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::ECMAScript, 0);50 test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::ECMAScript, 0);51 test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::ECMAScript, 0);52 test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::ECMAScript, 2);53 54 test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::awk, 0);55 test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::awk, 0);56 test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::awk, 0);57 test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::awk, 2);58 59 test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::grep, 1);60 test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::grep, 1);61 test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::grep, 2);62 test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::grep, 0);63 64 test({'\\', '(', 'a', '\\', ')'}, std::regex_constants::egrep, 0);65 test({'\\', '(', 'a', '[', 'b', 'c', ']', '\\', ')'}, std::regex_constants::egrep, 0);66 test({'\\', '(', 'a', '\\', '(', '[', 'b', 'c', ']', '\\', ')', '\\', ')'}, std::regex_constants::egrep, 0);67 test({'(', 'a', '(', '[', 'b', 'c', ']', ')', ')'}, std::regex_constants::egrep, 2);68 69 return 0;70}71