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#include "main.ih"
void options(Process &process, Line &line, int argc, char **argv)
{
string progName = fs::path{argv[0]}.filename();
bool all = false;
try
{
while (true)
{
switch(int c = getopt(argc, argv, "aAnNs:S:T:t:V"))
{
case 'A':
line.ignore();
[[fallthrough]];
case 'a':
process.all();
all = true;
continue;
case 's':
process.indent(stoul(optarg), ' ');
continue;
case 't':
process.indent(stoul(optarg), '\t');
continue;
case 'S':
process.vindent(stoul(optarg), ' ');
continue;
case 'T':
process.vindent(stoul(optarg), '\t');
continue;
case 'N':
process.noVerbEndl();
continue;
case 'n':
process.numberLines();
continue;
case 'V':
process.noVerb();
continue;
case -1:
throw true; // ends option recognition
default:
throw string{ "option `"} + static_cast<char>(c) +
"' not supported";
}
}
}
catch (bool) // catches the -1
{}
// remaining arguments (argc - optind) must be 2 if -a was not
// specified, because then a marker is required, and 1 if -a
// was not specified. the last option remains argv[arc - 1]
if (argc - optind != 2 - all)
usage(progName);
if (not all)
process.setTarget(argv[optind]);
line.open(argv[argc - 1]);
}
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