91 lines
3.0 KiB
C++
91 lines
3.0 KiB
C++
#pragma once
|
|
|
|
// Distributed under the 3-Clause BSD License. See accompanying
|
|
// file LICENSE or https://github.com/CLIUtils/CLI11 for details.
|
|
|
|
#include <string>
|
|
#include <tuple>
|
|
#include <vector>
|
|
|
|
#include "CLI/Error.hpp"
|
|
#include "CLI/StringTools.hpp"
|
|
|
|
namespace CLI {
|
|
namespace detail {
|
|
|
|
// Returns false if not a short option. Otherwise, sets opt name and rest and returns true
|
|
inline bool split_short(const std::string ¤t, std::string &name, std::string &rest) {
|
|
if(current.size() > 1 && current[0] == '-' && valid_first_char(current[1])) {
|
|
name = current.substr(1, 1);
|
|
rest = current.substr(2);
|
|
return true;
|
|
} else
|
|
return false;
|
|
}
|
|
|
|
// Returns false if not a long option. Otherwise, sets opt name and other side of = and returns true
|
|
inline bool split_long(const std::string ¤t, std::string &name, std::string &value) {
|
|
if(current.size() > 2 && current.substr(0, 2) == "--" && valid_first_char(current[2])) {
|
|
auto loc = current.find("=");
|
|
if(loc != std::string::npos) {
|
|
name = current.substr(2, loc - 2);
|
|
value = current.substr(loc + 1);
|
|
} else {
|
|
name = current.substr(2);
|
|
value = "";
|
|
}
|
|
return true;
|
|
} else
|
|
return false;
|
|
}
|
|
|
|
// Splits a string into multiple long and short names
|
|
inline std::vector<std::string> split_names(std::string current) {
|
|
std::vector<std::string> output;
|
|
size_t val;
|
|
while((val = current.find(",")) != std::string::npos) {
|
|
output.push_back(current.substr(0, val));
|
|
current = current.substr(val + 1);
|
|
}
|
|
output.push_back(current);
|
|
return output;
|
|
}
|
|
|
|
/// Get a vector of short names, one of long names, and a single name
|
|
inline std::tuple<std::vector<std::string>, std::vector<std::string>, std::string>
|
|
get_names(const std::vector<std::string> &input) {
|
|
|
|
std::vector<std::string> short_names;
|
|
std::vector<std::string> long_names;
|
|
std::string pos_name;
|
|
|
|
for(std::string name : input) {
|
|
if(name.length() == 0)
|
|
continue;
|
|
else if(name.length() > 1 && name[0] == '-' && name[1] != '-') {
|
|
if(name.length() == 2 && valid_first_char(name[1]))
|
|
short_names.emplace_back(1, name[1]);
|
|
else
|
|
throw BadNameString("Invalid one char name: " + name);
|
|
} else if(name.length() > 2 && name.substr(0, 2) == "--") {
|
|
name = name.substr(2);
|
|
if(valid_name_string(name))
|
|
long_names.push_back(name);
|
|
else
|
|
throw BadNameString("Bad long name: " + name);
|
|
} else if(name == "-" || name == "--") {
|
|
throw BadNameString("Must have a name, not just dashes");
|
|
} else {
|
|
if(pos_name.length() > 0)
|
|
throw BadNameString("Only one positional name allowed, remove: " + name);
|
|
pos_name = name;
|
|
}
|
|
}
|
|
|
|
return std::tuple<std::vector<std::string>, std::vector<std::string>, std::string>(
|
|
short_names, long_names, pos_name);
|
|
}
|
|
|
|
} // namespace detail
|
|
} // namespace CLI
|