62 lines
1.5 KiB
C++
62 lines
1.5 KiB
C++
/* -*- tab-width: 4; -*- */
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/* vi: set sw=2 ts=4 expandtab: */
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#ifndef ARGPARSER_H
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#define ARGPARSER_H
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/*
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* Copyright 2017-2020 Mark Callow, github.com/MarkCallow.
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <ios>
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#include <sstream>
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#include <string>
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#include <vector>
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class argvector : public std::vector<std::string> {
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public:
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argvector() { };
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argvector(const std::string& argstring);
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argvector(int argc, const char* const* argv);
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};
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class argparser {
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public:
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struct option {
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const char* name;
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enum has_arg_t {no_argument, required_argument, optional_argument} has_arg;
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int* flag;
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int val;
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option(const char* name, has_arg_t has_arg, int* flag, int val) : name(name), has_arg(has_arg), flag(flag), val(val) {}
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};
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std::string optarg;
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unsigned int optind;
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argvector argv;
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argparser(argvector& argv, unsigned int startindex = 0)
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: optind(startindex), argv(argv) { }
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argparser(int argc, const char* const* argv1)
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: optind(1), argv(argc, argv1) { }
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int getopt(std::string* shortopts, const struct option* longopts,
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int* longindex = nullptr);
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};
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//================== Helper for apps' processArgs ========================
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// skips the number of characters equal to the length of given text
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// does not check whether the skipped characters are the same as it
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struct skip
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{
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const char* text;
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skip(const char* text) : text(text) {}
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};
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std::istream& operator >> (std::istream& stream, const skip& x);
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#endif /* ARGPARSER_H */
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