diff options
Diffstat (limited to 'parse-options.c')
| -rw-r--r-- | parse-options.c | 61 |
1 files changed, 44 insertions, 17 deletions
diff --git a/parse-options.c b/parse-options.c index 15b32f7..d3e608a 100644 --- a/parse-options.c +++ b/parse-options.c @@ -40,24 +40,53 @@ static int get_value(struct optparse_t *p, const struct option *opt, int flags) { const char *s, *arg; - arg = p->opt ? p->opt : (p->argc > 1 ? p->argv[1] : NULL); + const int unset = flags & OPT_UNSET; - if (p->opt && (flags & OPT_UNSET)) + if (unset && p->opt) return opterror(opt, "takes no value", flags); + if (unset && (opt->flags & PARSE_OPT_NONEG)) + return opterror(opt, "isn't available", flags); - switch (opt->type) { - case OPTION_BOOLEAN: - if (!(flags & OPT_SHORT) && p->opt) + if (!(flags & OPT_SHORT) && p->opt) { + switch (opt->type) { + case OPTION_CALLBACK: + if (!(opt->flags & PARSE_OPT_NOARG)) + break; + /* FALLTHROUGH */ + case OPTION_BOOLEAN: + case OPTION_BIT: + case OPTION_SET_INT: + case OPTION_SET_PTR: return opterror(opt, "takes no value", flags); - if (flags & OPT_UNSET) - *(int *)opt->value = 0; + default: + break; + } + } + + arg = p->opt ? p->opt : (p->argc > 1 ? p->argv[1] : NULL); + switch (opt->type) { + case OPTION_BIT: + if (unset) + *(int *)opt->value &= ~opt->defval; else - (*(int *)opt->value)++; + *(int *)opt->value |= opt->defval; + return 0; + + case OPTION_BOOLEAN: + *(int *)opt->value = unset ? 0 : *(int *)opt->value + 1; + return 0; + + case OPTION_SET_INT: + *(int *)opt->value = unset ? 0 : opt->defval; + return 0; + + case OPTION_SET_PTR: + *(void **)opt->value = unset ? NULL : (void *)opt->defval; return 0; case OPTION_STRING: - if (flags & OPT_UNSET) { - *(const char **)opt->value = (const char *)NULL; + if (unset) { + *(const char **)opt->value = NULL; return 0; } if (opt->flags & PARSE_OPT_OPTARG && (!arg || *arg == '-')) { @@ -70,13 +99,10 @@ static int get_value(struct optparse_t *p, return 0; case OPTION_CALLBACK: - if (flags & OPT_UNSET) + if (unset) return (*opt->callback)(opt, NULL, 1); - if (opt->flags & PARSE_OPT_NOARG) { - if (p->opt && !(flags & OPT_SHORT)) - return opterror(opt, "takes no value", flags); + if (opt->flags & PARSE_OPT_NOARG) return (*opt->callback)(opt, NULL, 0); - } if (opt->flags & PARSE_OPT_OPTARG && (!arg || *arg == '-')) return (*opt->callback)(opt, NULL, 0); if (!arg) @@ -84,7 +110,7 @@ static int get_value(struct optparse_t *p, return (*opt->callback)(opt, get_arg(p), 0); case OPTION_INTEGER: - if (flags & OPT_UNSET) { + if (unset) { *(int *)opt->value = 0; return 0; } @@ -292,7 +318,7 @@ void usage_with_options(const char * const *usagestr, pos += fprintf(stderr, " ..."); } break; - default: + default: /* OPTION_{BIT,BOOLEAN,SET_INT,SET_PTR} */ break; } @@ -311,6 +337,7 @@ void usage_with_options(const char * const *usagestr, /*----- some often used options -----*/ #include "cache.h" + int parse_opt_abbrev_cb(const struct option *opt, const char *arg, int unset) { int v; |