External/cxxopts
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add help for positional parameters

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This commit is contained in:
Jarryd Beck 2017-04-26 18:16:00 +10:00
parent 1be5f10daf
commit 3c3d2003ca
2 changed files with 12 additions and 1 deletions
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12
include/cxxopts.hpp
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@ -681,10 +681,19 @@ namespace cxxopts
Options(std::string program, std::string help_string = "")
: m_program(std::move(program))
, m_help_string(toLocalString(std::move(help_string)))
, m_positional_help("positional parameters")
, m_next_positional(m_positional.end())
{
}
inline
Options&
positional_help(const std::string& help_text)
{
m_positional_help = std::move(help_text);
return *this;
}
inline
void
parse(int& argc, char**& argv);
@ -795,6 +804,7 @@ namespace cxxopts
std::string m_program;
String m_help_string;
std::string m_positional_help;
std::map<std::string, std::shared_ptr<OptionDetails>> m_options;
std::vector<std::string> m_positional;
@ -1369,7 +1379,7 @@ Options::help(const std::vector<std::string>& groups) const
toLocalString(m_program) + " [OPTION...]";
if (m_positional.size() > 0) {
result += " positional parameters";
result += " " + toLocalString(m_positional_help);
}
result += "\n\n";

1
src/example.cpp
View File

@ -31,6 +31,7 @@ int main(int argc, char* argv[])
try
{
cxxopts::Options options(argv[0], " - example command line options");
options.positional_help("[optional args]");
bool apple = false;