50 lines
1.4 KiB
D
50 lines
1.4 KiB
D
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module arg;
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import core.stdc.stdlib : abort;
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__gshared string argv0;
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void parseArgs(ref string[] args, void delegate(char, string delegate(), string delegate(lazy void)) handleArg) {
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argv0 = args[0];
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args = args[1..$];
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while (args.length > 0 && args[0].length > 0 && args[0][0] == '-' && args[0].length > 1) {
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if (args[0] == "--") {
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args = args[1..$];
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break;
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}
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auto currentArg = args[0];
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args = args[1..$];
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for (size_t i = 1; i < currentArg.length; i++) {
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char argc_ = currentArg[i];
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string getArgValue() {
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if (i + 1 < currentArg.length) {
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return currentArg[i+1..$];
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} else if (args.length > 0) {
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auto val = args[0];
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args = args[1..$];
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return val;
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}
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return null;
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}
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string requireArgValue(lazy void onError) {
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auto val = getArgValue();
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if (val is null) {
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onError();
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abort();
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}
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return val;
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}
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handleArg(argc_, &getArgValue, &requireArgValue);
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if (i + 1 < currentArg.length && getArgValue() !is null) {
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break;
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}
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}
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}
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}
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