External/cxxopts
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allow empty string to be valid positional arguments

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This commit is contained in:
Baojun Wang 2019-09-09 12:55:57 -04:00
parent 4a0af0e950
commit 4237b15a76
1 changed files with 6 additions and 0 deletions
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6
include/cxxopts.hpp
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@ -743,6 +743,12 @@ namespace cxxopts
void void
parse_value(const std::string& text, std::vector<T>& value) parse_value(const std::string& text, std::vector<T>& value)
{ {
if (text.empty()) {
T v;
parse_value(text, v);
value.emplace_back(std::move(v));
return;
}
std::stringstream in(text); std::stringstream in(text);
std::string token; std::string token;
while(in.eof() == false && std::getline(in, token, CXXOPTS_VECTOR_DELIMITER)) { while(in.eof() == false && std::getline(in, token, CXXOPTS_VECTOR_DELIMITER)) {