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Parse argument list and add detailed usage

This commit is contained in:
Vladimir Panteleev 2010-09-12 23:44:53 +03:00
parent 4559fc8dc8
commit dad49db729
1 changed files with 25 additions and 4 deletions
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wp2git.d
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@ -11,13 +11,34 @@ import litexml;
int main(string[] args) int main(string[] args)
{ {
if (args.length != 2) string name;
bool usage;
foreach (arg; args[1..$])
switch (arg)
{ {
fwritefln(stderr, "Usage: %s Article_name", args[0]); case "-h":
return 1; case "--help":
usage = true;
break;
default:
if (name)
throw new Exception("Multiple article name arguments");
name = arg;
break;
} }
string name = args[1]; if (args.length == 1 || usage)
{
fwritefln(stderr, "Usage: %s Article_name [OPTION]...", args[0]);
fwritefln(stderr, "Create a git repository with the history of the specified Wikipedia article.");
fwritefln(stderr, "Supported options:");
fwritefln(stderr, " -h --help Display this help");
return 2;
}
if (!name)
throw new Exception("No article specified");
if (name.length>=2 && name[0]=='"' && name[$-1]=='"') if (name.length>=2 && name[0]=='"' && name[$-1]=='"')
name = name[1..$-1]; // strip quotes name = name[1..$-1]; // strip quotes