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Improve long-only options output.

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GitOrigin-RevId: bd6b4bed622f5c9d751d3bb19cd56834645223b4
This commit is contained in:
levlam 2020-06-17 05:35:55 +03:00
parent a7fa10718f
commit eea76cdcc0
1 changed files with 10 additions and 4 deletions
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14
tdutils/td/utils/OptionParser.cpp
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@ -137,15 +137,21 @@ Result<vector<char *>> OptionParser::run(int argc, char *argv[]) {
StringBuilder &operator<<(StringBuilder &sb, const OptionParser &o) {
sb << o.description_ << "\n";
for (auto &opt : o.options_) {
sb << "-" << opt.short_key;
bool has_short_key = opt.short_key != '\0';
if (has_short_key) {
sb << "-" << opt.short_key;
}
if (!opt.long_key.empty()) {
sb << "|--" << opt.long_key;
if (has_short_key) {
sb << '|';
}
sb << "--" << opt.long_key;
}
if (opt.type != OptionParser::Option::Type::NoArg) {
sb << "<arg>";
}
sb << "\t" << opt.description;
sb << "\n";
sb << " " << opt.description;
sb << '\n';
}
return sb;
}