62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
/*******************************************************************************
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HARPtools by Chad D. Kersey, Summer 2011
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*******************************************************************************/
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#ifndef __ARGS_H
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#define __ARGS_H
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#include <iostream>
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#include <string>
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#include <sstream>
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#include <map>
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namespace HarpTools {
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struct BadArg { BadArg(std::string s) : arg(s) {} std::string arg; };
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class CommandLineArg {
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public:
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CommandLineArg(std::string s, std::string l, const char *helpText);
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CommandLineArg(std::string l, const char *helpText);
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virtual int read(int argc, char** argv) = 0;
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static void readArgs(int argc, char **argv);
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static void clearArgs();
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static void showHelp(std::ostream &os);
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private:
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static std::string helpString;
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static std::map<std::string, CommandLineArg *> longArgs;
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static std::map<std::string, CommandLineArg *> shortArgs;
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};
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template <typename T> class CommandLineArgSetter : public CommandLineArg {
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public:
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CommandLineArgSetter(std::string s, std::string l, const char *ht, T &x) :
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CommandLineArg(s, l, ht), x(x) {}
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CommandLineArgSetter(std::string l, const char *ht, T &x) :
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CommandLineArg(l, ht), x(x) {}
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int read(int argc, char **argv) {
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std::istringstream iss(argv[1]);
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iss >> x;
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return 1;
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}
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private:
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T &x;
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};
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class CommandLineArgFlag : public CommandLineArg {
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public:
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CommandLineArgFlag(std::string s, std::string l, const char *ht, bool &x) :
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CommandLineArg(s, l, ht), x(x) { x = false; }
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CommandLineArgFlag(std::string l, const char *ht, bool &x) :
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CommandLineArg(l, ht), x(x) { x = false; }
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int read(int argc, char **argv) { x = true; return 0; }
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private:
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bool &x;
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};
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}
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#endif
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