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parse-options: make sure argh string does not have SP or _
We encourage to spell an argument hint that consists of multiple words as a single-token separated with dashes. In order to help catching violations added by new callers of parse-options, make sure argh does not contain SP or _ when the code validates the option definitions. Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -375,6 +375,9 @@ static void parse_options_check(const struct option *opts)
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default:
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; /* ok. (usually accepts an argument) */
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}
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if (opts->argh &&
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strcspn(opts->argh, " _") != strlen(opts->argh))
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err |= optbug(opts, "multi-word argh should use dash to separate words");
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}
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if (err)
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exit(128);
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