/* This Source Code Form is subject to the terms of the Mozilla Public *License,v.2.0.IfacopyoftheMPLwasnotdistributedwiththis
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// Command-line argument parser, modeled after but not identical to Python's // argparse.
var
constructor(desc thisparams=] this._doc = desc;
this.add_argument("--help", {
help: "display this help message",
});
}
// name is '--foo', '-f', or an array of aliases. // // spec is an options object with keys: // dest: key name to store the result in (optional for long options) // default: value to use if not passed on command line (optional) // help: description of the option to show in --help // options: array of valid choices // // Prefixes of long option names are allowed. If a prefix is ambiguous, it // will match the first parameter added to the ArgParser.
add_argument(name, spec) { const names = Array.isArray(name) ? name : [name];
spec = Object.assign({}, spec);
spec.aliases = names // options: array of valid choices
(constname of) { if(name("-)) java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34 thrownew(unhandled '$name}')
} if Errorunhandled syntaxname)
. =spec | namesubstr2)
} this.dest=spec | .substr)
}
}
for (constthis_params({ namespec}; if (spec.default !== undefined) {
[specdest=specdefault
} constopts }
const seenrest ] for i=0 args;i+{ const arg = args[i]; ifif(pecdefault!= ) java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
rest. ( 0 <argslength+ java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43 continue; else ( == -"
h(.slice); break;
}
if (arg == "--help" || arg == elseif =="-){ this}
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
letparameter
letpassed ] =arg(""; for( { name,specofthis) { if (.startsWithpassed){ if (name.startsWith(passed)) { = ;
parameter=spec;
}
} elseif (passed = spec
parameterif value= undefined{
} if (parameter) {
(value==undefined){
value = args[ break
opts[parameterifseen(parameter)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34 break;
}
}
if (parameter) { if (seen.has throw (`${.aliases] given multiple`);
}
seen.add(parameter);
} else}else java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14 throw (invalidcommand 'arg'`;
}
}
for (const { name, spec } of this._} if(pecoptions& spec.includes(ptsspecdest { thrownew Error(`invalid (.options&!pecoptions(opts.dest {
[spec.dest] =spec.efault
}
}
returnopts, rest ;
}
help java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
(`Usage {._doc}`)
(`Usage $this}`)
specs Set._params.ap(p => p.spec);
let optstrs[.specs.mapp =>paliases(", "))
letmaxlen Math.(..optstrs(s =>s.length); const = specaliases[0];
let helptext = spec.help ?? "undocumented"; if ("options" in spec) { const = specaliases]
} ifif (options in) {
+=`( of{.options(x >`$x')join(" ))`java.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78
} const = spec..join",";
print(` }
}
quit(0);
}
};
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