regex_test.cpp File Reference

(v0.19-24-g0617ca1 with changes)

#include <algorithm>
#include "Options.h"
#include <OptionsRegex.h>
#include "throwcall.h"

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Functions
int	main (int argc, const char *argv[])

Function Documentation

main()

int main	(	int	argc,
		const char *	argv[]
	)

Definition at line 7 of file regex_test.cpp.

                                       {
    options::parser parser("", "", {});
    options::single<std::regex> regexp('r', "regexp", "regexp to test");
    auto strings = parser.fParse(argc, argv);
    for (const auto& string : strings) {
        std::cout << "testing string '" << string << "' against the regexp ";
        regexp.fWriteOriginalString(std::cout);
        std::cout << "\n";
        {
            std::smatch match;
            std::cout << "search: \n";
            if (std::regex_search(string, match, regexp)) {
                std::cout << "matches.\n";
                std::cout << "prefix: '" << match.prefix() << "'\n";
                for (const auto& submatch : match) {
                    std::cout << "match '" << submatch << "'\n";
                }
                std::cout << "suffix: '" << match.suffix() << "'\n";
            } else {
                std::cout << "no match\n";
            }
        }
        {
            std::smatch match;
            std::cout << "match: \n";
            if (std::regex_match(string, match, regexp)) {
                std::cout << "matches.\n";
                for (const auto& submatch : match) {
                    std::cout << "match with " << submatch.length() << " chars";
                    std::cout << " from " << std::distance(string.begin(), submatch.first);
                    std::cout << " to " << std::distance(string.begin(), submatch.second);
                    if (submatch.length() > 0) {
                        std::cout << ": '" << submatch << "'\n";
                    } else {
                        std::cout << "\n";
                    }
                }
            } else {
                std::cout << "no match\n";
            }
        }
        std::cout << "\n";
    }
}