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parseopt: add OPT_NEGBIT

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Add OPTION_NEGBIT and OPT_NEGBIT, mirroring OPTION_BIT and OPT_BIT.
OPT_NEGBIT can be used together with OPT_BIT to define two options
that cancel each other out.

Note: this patch removes the reminder from the test script because
it adds a test for --no-or4 and there already was one for --or4.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
René Scharfe
2009-05-07 21:44:17 +02:00
committed by Junio C Hamano
parent 5a0e4a2a32
commit 2f4b97f910
5 changed files with 44 additions and 2 deletions
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8
parse-options.c
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@ -50,6 +50,7 @@ static int get_value(struct parse_opt_ctx_t *p,
/* FALLTHROUGH */
case OPTION_BOOLEAN:
case OPTION_BIT:
case OPTION_NEGBIT:
case OPTION_SET_INT:
case OPTION_SET_PTR:
return opterror(opt, "takes no value", flags);
@ -66,6 +67,13 @@ static int get_value(struct parse_opt_ctx_t *p,
*(int *)opt->value |= opt->defval;
return 0;
case OPTION_NEGBIT:
if (unset)
*(int *)opt->value |= opt->defval;
else
*(int *)opt->value &= ~opt->defval;
return 0;
case OPTION_BOOLEAN:
*(int *)opt->value = unset ? 0 : *(int *)opt->value + 1;
return 0;