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fix(command_line): Use specific exceptions

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This commit is contained in:
Michael Carlberg 2016-10-10 20:22:47 +02:00
parent 7efb2fc47a
commit 2921239833
1 changed files with 10 additions and 8 deletions
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18
include/components/command_line.hpp
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@ -10,6 +10,8 @@
LEMONBUDDY_NS
namespace command_line {
DEFINE_ERROR(argument_error);
DEFINE_ERROR(value_error);
class option;
using choices = vector<string>;
@ -134,9 +136,9 @@ namespace command_line {
template <class T = parser>
static di::injector<T> configure(string scriptname, options opts) {
// clang-format off
return di::make_injector(
di::bind<>().to("Usage: " + scriptname + " bar_name [OPTION...]"),
di::bind<>().to(opts));
return di::make_injector(
di::bind<>().to("Usage: " + scriptname + " bar_name [OPTION...]"),
di::bind<>().to(opts));
// clang-format on
}
@ -171,18 +173,18 @@ namespace command_line {
string value;
if (input_next.empty() && opt.compare(0, 2, "--") != 0)
throw application_error("Missing value for " + opt);
throw value_error("Missing value for " + opt);
else if (!input_next.empty())
value = input_next;
else if ((pos = opt.compare(0, 1, "=")) == string::npos)
throw application_error("Missing value for " + opt);
else if ((pos = opt.find("=")) == string::npos)
throw value_error("Missing value for " + opt);
else {
value = opt.substr(pos + 1);
opt = opt.substr(0, pos);
}
if (!values.empty() && std::find(values.begin(), values.end(), value) == values.end())
throw application_error("Invalid argument '" + value + "' for " + string{opt});
throw value_error("Invalid value '" + value + "' for argument " + string{opt});
return value;
}
@ -212,7 +214,7 @@ namespace command_line {
}
if (input.compare(0, 1, "-") == 0) {
throw application_error("Unrecognized option " + input);
throw argument_error("Unrecognized option " + input);
}
}