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parse-options: add two helper functions

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1. parse_options_current: get the current option/argument the API
   is dealing with;
2. parse_options_next: skip the current argument, moving to the
   next one. Unless 'keep' is set, discard the skipped argument
   from the final argument list.

Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Bo Yang
2010-08-11 23:03:27 +08:00
committed by Junio C Hamano
parent 8df9aac42c
commit 3fd699ed44
2 changed files with 23 additions and 0 deletions
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19
parse-options.c
View File

@@ -439,6 +439,25 @@ unknown:
return PARSE_OPT_DONE;
}
const char *parse_options_current(struct parse_opt_ctx_t *ctx)
{
return ctx->argv[0];
}
int parse_options_next(struct parse_opt_ctx_t *ctx, int keep)
{
if (ctx->argc <= 0)
return -1;
if (keep)
ctx->out[ctx->cpidx++] = ctx->argv[0];
ctx->argc--;
ctx->argv++;
return 0;
}
int parse_options_end(struct parse_opt_ctx_t *ctx)
{
memmove(ctx->out + ctx->cpidx, ctx->argv, ctx->argc * sizeof(*ctx->out));

4
parse-options.h
View File

@@ -187,6 +187,10 @@ extern int parse_options_step(struct parse_opt_ctx_t *ctx,
const struct option *options,
const char * const usagestr[]);
extern const char *parse_options_current(struct parse_opt_ctx_t *ctx);
extern int parse_options_next(struct parse_opt_ctx_t *ctx, int keep);
extern int parse_options_end(struct parse_opt_ctx_t *ctx);
extern int parse_options_concat(struct option *dst, size_t, struct option *src);