mirror of
https://github.com/CLIUtils/CLI11.git
synced 2025-04-30 12:43:52 +00:00
Initial commit of CLI library. A few things working, but not much
This commit is contained in:
Henry Fredrick Schreiner
commit
2db15139cb
465
CLI.hpp
Normal file
465
CLI.hpp
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@ -0,0 +1,465 @@
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#pragma once
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#include <string>
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#include <regex>
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#include <iostream>
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#include <functional>
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#include <tuple>
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#include <exception>
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#include <algorithm>
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#include <sstream>
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#include <type_traits>
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// This is unreachable outside this file; you should not use Combiner directly
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namespace {
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void logit(std::string output) {
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std::cout << output << std::endl;
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}
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template <typename T>
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std::string join(const T& v, std::string delim = ",") {
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std::ostringstream s;
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for (const auto& i : v) {
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if (&i != &v[0]) {
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s << delim;
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}
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s << i;
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}
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return s.str();
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}
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struct Combiner {
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int num;
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bool positional;
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bool required;
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bool defaulted;
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/// Can be or-ed together
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Combiner operator | (Combiner b) const {
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Combiner self;
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self.num = num + b.num;
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self.positional = positional || b.positional;
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self.required = required || b.required;
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self.defaulted = defaulted || b.defaulted;
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return self;
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}
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/// Call to give the number of arguments expected on cli
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Combiner operator() (int n) const {
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return Combiner{n, positional, required, defaulted};
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}
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Combiner operator, (Combiner b) const {
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return *this | b;
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}
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};
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}
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namespace CLI {
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class BadNameString : public std::runtime_error {
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public:
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BadNameString(std::string name) : runtime_error("Failed to parse: " + name) {};
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};
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class CallForHelp : public std::runtime_error {
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public:
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CallForHelp() : runtime_error("Help option passed") {};
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};
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class ParseError : public std::runtime_error {
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public:
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ParseError(std::string info="") : runtime_error(info) {};
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};
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class OptionAlreadyAdded : public std::runtime_error {
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public:
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OptionAlreadyAdded(std::string name) : runtime_error("Already added:" + name) {};
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};
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const std::regex reg_split{R"regex((?:([a-zA-Z0-9]?)(?:,|$)|^)([a-zA-Z0-9][a-zA-Z0-9_\-]*)?)regex"};
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const std::regex reg_short{R"regex(-([^-])(.*))regex"};
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const std::regex reg_long{R"regex(--([^-^=][^=]*)=?(.*))regex"};
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std::tuple<std::string, std::string> split(std::string fullname) throw(BadNameString) {
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std::smatch match;
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if (std::regex_match(fullname, match, reg_split)) {
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std::string sname = match[1];
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std::string lname = match[2];
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if(sname == "" and lname == "")
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throw BadNameString("EMPTY");
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return std::tuple<std::string, std::string>(sname, lname);
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} else throw BadNameString(fullname);
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}
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const Combiner NOTHING {0,false,false,false};
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const Combiner REQUIRED {0,false,true, false};
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const Combiner DEFAULT {0,false,false,true};
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const Combiner POSITIONAL{0,true, false,false};
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const Combiner ARGS {1,false,false,false};
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typedef std::vector<std::vector<std::string>> results_t;
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typedef std::function<bool(results_t)> callback_t;
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class Option {
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public:
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protected:
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// Config
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std::string sname;
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std::string lname;
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Combiner opts;
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std::string discription;
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callback_t callback;
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// Results
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results_t results {};
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public:
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Option(std::string name, std::string discription = "", Combiner opts=NOTHING, std::function<bool(results_t)> callback=[](results_t){return true;}) throw (BadNameString) :
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opts(opts), discription(discription), callback(callback){
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std::tie(sname, lname) = split(name);
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}
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/// Process the callback
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bool run_callback() const {
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return callback(results);
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}
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/// Indistinguishible options are equal
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bool operator== (const Option& other) const {
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if(sname=="" && other.sname=="")
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return lname==other.lname;
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else if(lname=="" && other.lname=="")
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return sname==other.sname;
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else
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return sname==other.sname || lname==other.lname;
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}
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std::string getName() const {
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if(sname=="")
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return "--" + lname;
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else if (lname=="")
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return "-" + sname;
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else
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return "-" + sname + ", --" + lname;
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}
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bool check_sname(const std::string& name) const {
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return name == sname;
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}
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bool check_lname(const std::string& name) const {
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return name == lname;
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}
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std::string get_sname() const {
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return sname;
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}
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std::string get_lname() const {
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return lname;
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}
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int get_num() const {
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return opts.num;
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}
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void add_result(int r, std::string s) {
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results.at(r).push_back(s);
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}
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int get_new() {
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results.emplace_back();
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return results.size() - 1;
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}
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int count() {
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return results.size();
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}
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std::string string() const {
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std::string val = "Option: " + getName() + "\n"
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+ " " + discription + "\n"
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+ " [";
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for(const auto& item : results) {
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if(&item!=&results[0])
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val+="],[";
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val += join(item);
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}
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val += "]";
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return val;
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}
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};
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/// Creates a command line program, with very few defaults.
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/** To use, create a new Program() instance with argc, argv, and a help discription. The templated
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* add_option methods make it easy to prepare options. Remember to call `.start` before starting your
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* program, so that the options can be evaluated and the help option doesn't accidentally run your program. */
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class App {
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public:
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protected:
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std::string desc;
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std::vector<Option> options;
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std::vector<std::string> missing_options;
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std::vector<std::string> positionals;
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public:
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/// Create a new program. Pass in the same arguments as main(), along with a help string.
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App(std::string discription)
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: desc(discription) {
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}
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/// Add an option, will automatically understand the type for common types.
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/** To use, create a variable with the expected type, and pass it in after the name.
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* After start is called, you can use count to see if the value was passed, and
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* the value will be initialized properly.
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*
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* Program::REQUIRED, Program::DEFAULT, and Program::POSITIONAL are options, and can be `|`
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* together. The positional options take an optional number of arguments.
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*
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* For example,
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*
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* std::string filename
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* program.add_option("filename", filename, "discription of filename");
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*/
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void add_option(
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std::string name, ///< The name, long,short
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callback_t callback, ///< The callback
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std::string discription="", ///< Discription string
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Combiner opts=ARGS ///< The options (REQUIRED, DEFAULT, POSITIONAL, ARGS())
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) {
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Option myopt{name, discription, opts, callback};
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if(std::find(std::begin(options), std::end(options), myopt) == std::end(options))
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options.push_back(myopt);
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else
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throw OptionAlreadyAdded(myopt.getName());
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}
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/// Add option for string
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void add_option(
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std::string name, ///< The name, long,short
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std::string &variable, ///< The variable to set
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std::string discription="", ///< Discription string
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Combiner opts=ARGS ///< The options (REQUIRED, DEFAULT, POSITIONAL, ARGS())
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) {
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CLI::callback_t fun = [&variable](CLI::results_t res){
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if(res.size()!=1) {
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return false;
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}
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if(res[0].size()!=1) {
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return false;
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}
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variable = res[0][0];
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return true;
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};
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add_option(name, fun, discription, opts);
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}
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/// Add option for flag
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void add_flag(
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std::string name, ///< The name, short,long
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std::string discription="" ///< Discription string
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) {
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CLI::callback_t fun = [](CLI::results_t res){
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return true;
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};
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add_option(name, fun, discription, NOTHING);
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}
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/// Add option for flag
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template<typename T>
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typename std::enable_if<std::is_integral<T>::value, void>::type
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add_flag(
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std::string name, ///< The name, short,long
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T &count, ///< A varaible holding the count
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std::string discription="" ///< Discription string
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) {
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count = 0;
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CLI::callback_t fun = [&count](CLI::results_t res){
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count = res.size();
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return true;
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};
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add_option(name, fun, discription, NOTHING);
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}
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/// Parses the command line - throws errors
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void parse(int argc, char **argv) throw(CallForHelp, ParseError) {
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std::vector<std::string> args;
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for(int i=1; i<argc; i++)
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args.emplace_back(argv[i]);
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parse(args);
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}
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void parse(std::vector<std::string> args) throw(CallForHelp, ParseError) {
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std::reverse(args.begin(), args.end());
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bool positional_only = false;
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while(args.size()>0) {
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if(args.back() == "--") {
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args.pop_back();
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positional_only = true;
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} else if(positional_only || (!_parse_long(args) && !_parse_short(args))) {
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logit("Positional: "+args.back());
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positionals.push_back(args.back());
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args.pop_back();
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}
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}
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for(Option& opt : options)
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if (opt.count() > 0) {
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logit(opt.string());
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if(!opt.run_callback())
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logit("Failed");
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}
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//TODO: Check for false callbacks
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}
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bool _parse_short(std::vector<std::string> &args) {
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std::string current = args.back();
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std::smatch match;
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if(!std::regex_match(current, match, reg_short))
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return false;
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args.pop_back();
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std::string name = match[1];
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std::string rest = match[2];
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logit("Working on short:");
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logit(name);
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logit(rest);
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auto op = std::find_if(std::begin(options), std::end(options), [name](const Option &v){return v.check_sname(name);});
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if(op == std::end(options)) {
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missing_options.push_back("-" + op->get_sname());
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return true;
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}
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int vnum = op->get_new();
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int num = op->get_num();
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if(rest != "" && num > 0) {
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num--;
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op->add_result(vnum, rest);
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rest = "";
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}
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while(num>0) {
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num--;
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std::string current = args.back();
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logit("Adding: "+current);
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args.pop_back();
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op->add_result(vnum,current);
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if(args.size()==0)
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return true;
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}
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if(rest != "") {
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rest = "-" + rest;
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args.push_back(rest);
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}
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return true;
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}
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bool _parse_long(std::vector<std::string> &args) {
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std::string current = args.back();
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std::smatch match;
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if(!std::regex_match(current, match, reg_long))
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return false;
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args.pop_back();
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std::string name = match[1];
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std::string value = match[2];
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logit("Working on long:");
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logit(name);
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logit(value);
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auto op = std::find_if(std::begin(options), std::end(options), [name](const Option &v){return v.check_lname(name);});
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if(op == std::end(options)) {
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missing_options.push_back("--" + op->get_lname());
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return true;
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}
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int vnum = op->get_new();
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int num = op->get_num();
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if(value != "") {
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num--;
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op->add_result(vnum, value);
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}
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while(num>0) {
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num--;
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std::string current = args.back();
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args.pop_back();
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op->add_result(vnum,current);
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if(args.size()==0)
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return true;
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}
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return true;
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}
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/// This must be called after the options are in but before the rest of the program.
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/** Instead of throwing erros, causes the program to exit
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* if -h or an invalid option is passed. */
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void start(int argc, char** argv) {
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try {
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parse(argc, argv);
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} catch(const CallForHelp &e) {
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std::cout << help() << std::endl;
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exit(0);
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} catch(const ParseError &e) {
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std::cerr << "ERROR:" << std::endl;
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std::cerr << e.what() << std::endl;
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std::cerr << help() << std::endl;
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exit(1);
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}
|
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}
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||||
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/// Counts the number of times the given option was passed.
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int count(std::string name) const {
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return 0;
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||||
}
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||||
|
||||
std::string help() const {return "";}
|
||||
|
||||
|
||||
};
|
||||
}
|
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140
Program.hpp
Normal file
140
Program.hpp
Normal file
@ -0,0 +1,140 @@
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#pragma once
|
||||
|
||||
#include <string>
|
||||
|
||||
#include <boost/program_options.hpp>
|
||||
|
||||
|
||||
// This is unreachable outside this file; you should not use Combiner directly
|
||||
namespace {
|
||||
|
||||
struct Combiner {
|
||||
int positional;
|
||||
bool required;
|
||||
bool defaulted;
|
||||
|
||||
/// Can be or-ed together
|
||||
Combiner operator | (Combiner b) const {
|
||||
Combiner self;
|
||||
self.positional = positional + b.positional;
|
||||
self.required = required || b.required;
|
||||
self.defaulted = defaulted || b.defaulted;
|
||||
return self;
|
||||
}
|
||||
|
||||
/// Call to give the number of arguments expected on cli
|
||||
Combiner operator() (int n) const {
|
||||
return Combiner{n, required, defaulted};
|
||||
}
|
||||
Combiner operator, (Combiner b) const {
|
||||
return *this | b;
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
|
||||
|
||||
/// Creates a command line program, with very few defaults.
|
||||
/** To use, create a new Program() instance with argc, argv, and a help description. The templated
|
||||
* add_option methods make it easy to prepare options. Remember to call `.start` before starting your
|
||||
* program, so that the options can be evaluated and the help option doesn't accidentally run your program. */
|
||||
class Program {
|
||||
public:
|
||||
static constexpr Combiner REQUIRED{0,true,false};
|
||||
static constexpr Combiner DEFAULT{0,false,true};
|
||||
static constexpr Combiner POSITIONAL{1,false,false};
|
||||
|
||||
protected:
|
||||
boost::program_options::options_description desc;
|
||||
boost::program_options::positional_options_description p;
|
||||
boost::program_options::variables_map vm;
|
||||
|
||||
int argc;
|
||||
char **argv;
|
||||
|
||||
/// Parses the command line (internal function)
|
||||
void parse() {
|
||||
try {
|
||||
boost::program_options::store(boost::program_options::command_line_parser(argc, argv)
|
||||
.options(desc).positional(p).run(), vm);
|
||||
|
||||
if(vm.count("help")){
|
||||
std::cout << desc;
|
||||
exit(0);
|
||||
}
|
||||
|
||||
boost::program_options::notify(vm);
|
||||
} catch(const boost::program_options::error& e) {
|
||||
std::cerr << "ERROR: " << e.what() << std::endl << std::endl;
|
||||
std::cerr << desc << std::endl;
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
public:
|
||||
|
||||
/// Create a new program. Pass in the same arguments as main(), along with a help string.
|
||||
Program(int argc, char** argv, std::string discription)
|
||||
: argc(argc), argv(argv), desc(discription) {
|
||||
desc.add_options()
|
||||
("help,h", "Display this help message");
|
||||
}
|
||||
|
||||
/// Allows you to manually add options in the boost style.
|
||||
/** Usually the specialized methods are easier, but this remains for people used to Boost and for
|
||||
* unusual situations. */
|
||||
boost::program_options::options_description_easy_init add_options() {
|
||||
return desc.add_options();
|
||||
}
|
||||
|
||||
/// Add an option, will automatically understand the type for common types.
|
||||
/** To use, create a variable with the expected type, and pass it in after the name.
|
||||
* After start is called, you can use count to see if the value was passed, and
|
||||
* the value will be initialized properly.
|
||||
*
|
||||
* Program::REQUIRED, Program::DEFAULT, and Program::POSITIONAL are options, and can be `|`
|
||||
* together. The positional options take an optional number of arguments.
|
||||
*
|
||||
* For example,
|
||||
*
|
||||
* std::string filename
|
||||
* program.add_option("filename", filename, "description of filename");
|
||||
*/
|
||||
template<typename T>
|
||||
void add_option(
|
||||
std::string name, ///< The name, long,short
|
||||
T &value, ///< The value
|
||||
std::string description, ///< Discription string
|
||||
Combiner options ///< The options (REQUIRED, DEFAULT, POSITIONAL)
|
||||
) {
|
||||
auto po_value = boost::program_options::value<T>(&value);
|
||||
if(options.defaulted)
|
||||
po_value = po_value->default_value(value);
|
||||
if(options.required)
|
||||
po_value = po_value->required();
|
||||
desc.add_options()(name.c_str(),po_value,description.c_str());
|
||||
if(options.positional!=0)
|
||||
p.add(name.c_str(), options.positional);
|
||||
}
|
||||
|
||||
/// Adds a flag style option
|
||||
void add_option(std::string name, std::string description) {
|
||||
desc.add_options()(name.c_str(),description.c_str());
|
||||
}
|
||||
|
||||
|
||||
/// This must be called after the options are in but before the rest of the program.
|
||||
/** Calls the Boost boost::program_options initialization, causing the program to exit
|
||||
* if -h or an invalid option is passed. */
|
||||
void start() {
|
||||
parse();
|
||||
}
|
||||
|
||||
/// Counts the number of times the given option was passed.
|
||||
int count(std::string name) const {
|
||||
return vm.count(name.c_str());
|
||||
}
|
||||
|
||||
|
||||
};
|
||||
174
ProgramOP.hpp
Normal file
174
ProgramOP.hpp
Normal file
@ -0,0 +1,174 @@
|
||||
#pragma once
|
||||
|
||||
#include <string>
|
||||
#include <functional>
|
||||
#include <unordered_set>
|
||||
#include <vector>
|
||||
#include <iostream>
|
||||
|
||||
#include "optionparser.h"
|
||||
|
||||
// This is unreachable outside this file; you should not use Combiner directly
|
||||
namespace {
|
||||
|
||||
struct Combiner {
|
||||
int positional;
|
||||
bool required;
|
||||
bool defaulted;
|
||||
|
||||
/// Can be or-ed together
|
||||
Combiner operator | (Combiner b) const {
|
||||
Combiner self;
|
||||
self.positional = positional + b.positional;
|
||||
self.required = required || b.required;
|
||||
self.defaulted = defaulted || b.defaulted;
|
||||
return self;
|
||||
}
|
||||
|
||||
/// Call to give the number of arguments expected on cli
|
||||
Combiner operator() (int n) const {
|
||||
return Combiner{n, required, defaulted};
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
/// Creates a command line program, with very few defaults.
|
||||
/** To use, create a new Program() instance with argc, argv, and a help description. The templated
|
||||
* add_option methods make it easy to prepare options. Remember to call `.start` before starting your
|
||||
* program, so that the options can be evaluated and the help option doesn't accidentally run your program. */
|
||||
class Program {
|
||||
public:
|
||||
static constexpr Combiner REQUIRED{0,true,false};
|
||||
static constexpr Combiner DEFAULT{0,false,true};
|
||||
static constexpr Combiner POSITIONAL{1,false,false};
|
||||
|
||||
protected:
|
||||
std::vector<option::Descriptor> usage;
|
||||
std::vector<std::function<bool(std::vector<std::string>)>> convert; /// Number is loc+2
|
||||
std::unordered_set<int> required;
|
||||
std::vector<int> counts;
|
||||
std::vector<std::string> random_name_store;
|
||||
|
||||
int argc;
|
||||
char **argv;
|
||||
|
||||
/// Parses the command line (internal function)
|
||||
void parse() {
|
||||
usage.push_back(option::Descriptor{0, 0, nullptr, nullptr, nullptr, nullptr});
|
||||
|
||||
option::Stats stats(usage.data(), argc, argv);
|
||||
std::vector<option::Option> options(stats.options_max);
|
||||
std::vector<option::Option> buffer(stats.buffer_max);
|
||||
option::Parser parse(usage.data(), argc, argv, options.data(), buffer.data());
|
||||
|
||||
if(parse.error()) {
|
||||
std::cerr << "ERROR. See usage:" << std::endl;
|
||||
option::printUsage(std::cerr, usage.data());
|
||||
exit(1);
|
||||
}
|
||||
|
||||
|
||||
if(options[1]){
|
||||
option::printUsage(std::cerr, usage.data());
|
||||
exit(0);
|
||||
}
|
||||
|
||||
bool found_unk = false;
|
||||
for (option::Option* opt = options[0]; opt; opt = opt->next()) {
|
||||
std::cout << "Unknown option: " << opt->name << "\n";
|
||||
found_unk = true;
|
||||
}
|
||||
if(found_unk)
|
||||
exit(2);
|
||||
|
||||
for(int i=2; i<convert.size()+2; i++) {
|
||||
counts.emplace_back(options[i].count());
|
||||
if(options[i]) {
|
||||
std::vector<std::string> opt_list;
|
||||
for(option::Option* opt = options[i]; opt; opt = opt->next())
|
||||
opt_list.emplace_back(opt->arg ? opt->arg : "");
|
||||
convert.at(i-2)(opt_list);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public:
|
||||
|
||||
/// Create a new program. Pass in the same arguments as main(), along with a help string.
|
||||
Program(int argc, char** argv, std::string description)
|
||||
: argc(argc), argv(argv) {
|
||||
random_name_store.emplace_back(description);
|
||||
usage.push_back(option::Descriptor{0, 0, "", "", option::Arg::None, random_name_store.back().c_str()});
|
||||
usage.push_back(option::Descriptor{1, 0, "h", "help", option::Arg::None, "Display usage and exit."});
|
||||
}
|
||||
|
||||
|
||||
/// Add an option, will automatically understand the type for common types.
|
||||
/** To use, create a variable with the expected type, and pass it in after the name.
|
||||
* After start is called, you can use count to see if the value was passed, and
|
||||
* the value will be initialized properly.
|
||||
*
|
||||
* Program::REQUIRED, Program::DEFAULT, and Program::POSITIONAL are options, and can be `|`
|
||||
* together. The positional options take an optional number of arguments.
|
||||
*
|
||||
* For example,
|
||||
*
|
||||
* std::string filename
|
||||
* program.add_option("filename", filename, "description of filename");
|
||||
*/
|
||||
template<typename T>
|
||||
void add_option(
|
||||
std::string name, ///< The name, long,short
|
||||
T &value, ///< The value
|
||||
std::string description, ///< Description string
|
||||
Combiner options ///< The options (REQUIRED, DEFAULT, POSITIONAL)
|
||||
) {
|
||||
|
||||
int curr_num = convert.size();
|
||||
|
||||
if(options.required)
|
||||
required.emplace(curr_num);
|
||||
|
||||
random_name_store.emplace_back(name);
|
||||
random_name_store.emplace_back(description);
|
||||
|
||||
usage.push_back(option::Descriptor{(unsigned int) convert.size()+2, 0, "", random_name_store.at(random_name_store.size()-2).c_str(), option::Arg::Optional, random_name_store.back().c_str()});
|
||||
add_option_internal(value);
|
||||
|
||||
if(options.positional!=0)
|
||||
std::cout << "positional args not yet supported" << std::endl;
|
||||
|
||||
|
||||
|
||||
}
|
||||
|
||||
/// Adds a flag style option
|
||||
void add_flag(std::string name, std::string description, int& flag) {
|
||||
counts.emplace_back(0);
|
||||
random_name_store.emplace_back(name);
|
||||
random_name_store.emplace_back(description);
|
||||
usage.push_back(option::Descriptor{(unsigned int) convert.size()+2, 0, "", random_name_store.at(random_name_store.size()-2).c_str(), option::Arg::None, random_name_store.back().c_str()});
|
||||
convert.push_back([&flag](std::vector<std::string> v){flag = v.size(); return true;});
|
||||
}
|
||||
|
||||
void add_option_internal(int &val) {
|
||||
convert.push_back([&val](std::vector<std::string> v){val = std::stoi(v.at(0)); return v.size()==1;});
|
||||
}
|
||||
|
||||
void add_option_internal(std::string &val) {
|
||||
convert.push_back([&val](std::vector<std::string> v){val = v.at(0); return v.size()==1;});
|
||||
}
|
||||
/// This must be called after the options are in but before the rest of the program.
|
||||
/** Calls the Boost boost::program_options initialization, causing the program to exit
|
||||
* if -h or an invalid option is passed. */
|
||||
void start() {
|
||||
parse();
|
||||
}
|
||||
|
||||
/// Counts the number of times the given option was passed.
|
||||
int count(std::string name) const {
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
};
|
||||
20
try.cpp
Normal file
20
try.cpp
Normal file
@ -0,0 +1,20 @@
|
||||
#include "CLI.hpp"
|
||||
|
||||
|
||||
int main (int argc, char** argv) {
|
||||
|
||||
CLI::App app("K3Pi goofit fitter");
|
||||
|
||||
std::string file;
|
||||
app.add_option("f,file", file, "File name");
|
||||
|
||||
int count;
|
||||
app.add_flag<int>("c,count", count, "File name");
|
||||
|
||||
app.parse(argc, argv);
|
||||
|
||||
std::cout << "Working on file: " << file << std::endl;
|
||||
std::cout << "Working on count: " << count << std::endl;
|
||||
|
||||
return 0;
|
||||
}
|
||||
32
try1.cpp
Normal file
32
try1.cpp
Normal file
@ -0,0 +1,32 @@
|
||||
#include "CLI.hpp"
|
||||
|
||||
|
||||
int main (int argc, char** argv) {
|
||||
|
||||
std::vector<std::string> test_strings = {"a,boo", ",coo", "d,", "Q,this-is", "s", "single"};
|
||||
|
||||
for(std::string name : test_strings) {
|
||||
std::string one;
|
||||
std::string two;
|
||||
|
||||
std::tie(one, two) = CLI::split(name);
|
||||
std::cout << one << ", " << two << std::endl;
|
||||
}
|
||||
|
||||
std::vector<std::string> test_fails= {"a,,boo", "a,b,c", "ssd,sfd", "-a", "", ",", "one two"};
|
||||
|
||||
for(std::string name : test_fails) {
|
||||
std::string one;
|
||||
std::string two;
|
||||
|
||||
try {
|
||||
std::tie(one, two) = CLI::split(name);
|
||||
std::cout << "Failed to catch: " << name << std::endl;
|
||||
return 1;
|
||||
} catch (const CLI::BadNameString &e) {
|
||||
std::cout << "Hooray! Caught: " << name << std::endl;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user