X-Git-Url: http://git.efficios.com/?p=argpar.git;a=blobdiff_plain;f=argpar%2Fargpar.c;h=9112e4c359b8a4bfaeae625ae6bc7cebd8b1c406;hp=ba577976a789f71d667e4f1b35be322de91bd6e6;hb=9e2c879bb10c35749cab090dbc89161698caf4e5;hpb=d1f7bbdbd28b96b360e815f28697a2f81d699cb4 diff --git a/argpar/argpar.c b/argpar/argpar.c index ba57797..9112e4c 100644 --- a/argpar/argpar.c +++ b/argpar/argpar.c @@ -55,12 +55,12 @@ struct argpar_iter { int non_opt_index; /* - * Current character of the current short option group: if it's - * not `NULL`, the parser is in within a short option group, - * therefore it must resume there in the next - * argpar_iter_next() call. + * Current character within the current short option group: if + * it's not `NULL`, the parser is within a short option group, + * therefore it must resume there in the next argpar_iter_next() + * call. */ - const char *short_opt_ch; + const char *short_opt_group_ch; /* Temporary character buffer which only grows */ struct { @@ -253,79 +253,6 @@ end: return; } -static -bool push_item(struct argpar_item_array * const array, - const struct argpar_item * const item) -{ - bool success; - - ARGPAR_ASSERT(array); - ARGPAR_ASSERT(item); - - if (array->n_items == array->n_alloc) { - const unsigned int new_n_alloc = array->n_alloc * 2; - const struct argpar_item ** const new_items = - ARGPAR_REALLOC(array->items, const struct argpar_item *, - new_n_alloc); - if (!new_items) { - success = false; - goto end; - } - - array->n_alloc = new_n_alloc; - array->items = new_items; - } - - array->items[array->n_items] = item; - array->n_items++; - success = true; - -end: - return success; -} - -static -void destroy_item_array(struct argpar_item_array * const array) -{ - if (array) { - unsigned int i; - - for (i = 0; i < array->n_items; i++) { - argpar_item_destroy(array->items[i]); - } - - free(array->items); - free(array); - } -} - -static -struct argpar_item_array *create_item_array(void) -{ - struct argpar_item_array *ret; - const int initial_size = 10; - - ret = ARGPAR_ZALLOC(struct argpar_item_array); - if (!ret) { - goto end; - } - - ret->items = ARGPAR_CALLOC(const struct argpar_item *, initial_size); - if (!ret->items) { - goto error; - } - - ret->n_alloc = initial_size; - goto end; - -error: - destroy_item_array(ret); - ret = NULL; - -end: - return ret; -} - static struct argpar_item_opt *create_opt_item( const struct argpar_opt_descr * const descr, @@ -411,7 +338,8 @@ enum parse_orig_arg_opt_ret { }; static -enum parse_orig_arg_opt_ret parse_short_opts(const char * const short_opts, +enum parse_orig_arg_opt_ret parse_short_opt_group( + const char * const short_opt_group, const char * const next_orig_arg, const struct argpar_opt_descr * const descrs, struct argpar_iter * const iter, @@ -423,25 +351,25 @@ enum parse_orig_arg_opt_ret parse_short_opts(const char * const short_opts, const struct argpar_opt_descr *descr; struct argpar_item_opt *opt_item; - ARGPAR_ASSERT(strlen(short_opts) != 0); + ARGPAR_ASSERT(strlen(short_opt_group) != 0); - if (!iter->short_opt_ch) { - iter->short_opt_ch = short_opts; + if (!iter->short_opt_group_ch) { + iter->short_opt_group_ch = short_opt_group; } /* Find corresponding option descriptor */ - descr = find_descr(descrs, *iter->short_opt_ch, NULL); + descr = find_descr(descrs, *iter->short_opt_group_ch, NULL); if (!descr) { try_append_string_printf(error, "Unknown option `-%c`", - *iter->short_opt_ch); + *iter->short_opt_group_ch); ret = PARSE_ORIG_ARG_OPT_RET_ERROR_UNKNOWN_OPT; goto error; } if (descr->with_arg) { - if (iter->short_opt_ch[1]) { + if (iter->short_opt_group_ch[1]) { /* `-oarg` form */ - opt_arg = &iter->short_opt_ch[1]; + opt_arg = &iter->short_opt_group_ch[1]; } else { /* `-o arg` form */ opt_arg = next_orig_arg; @@ -452,11 +380,11 @@ enum parse_orig_arg_opt_ret parse_short_opts(const char * const short_opts, * We accept `-o ''` (empty option argument), but not * `-o` alone if an option argument is expected. */ - if (!opt_arg || (iter->short_opt_ch[1] && + if (!opt_arg || (iter->short_opt_group_ch[1] && strlen(opt_arg) == 0)) { try_append_string_printf(error, "Missing required argument for option `-%c`", - *iter->short_opt_ch); + *iter->short_opt_group_ch); used_next_orig_arg = false; ret = PARSE_ORIG_ARG_OPT_RET_ERROR_MISSING_OPT_ARG; goto error; @@ -471,11 +399,11 @@ enum parse_orig_arg_opt_ret parse_short_opts(const char * const short_opts, } *item = &opt_item->base; - iter->short_opt_ch++; + iter->short_opt_group_ch++; - if (descr->with_arg || !*iter->short_opt_ch) { + if (descr->with_arg || !*iter->short_opt_group_ch) { /* Option has an argument: no more options */ - iter->short_opt_ch = NULL; + iter->short_opt_group_ch = NULL; if (used_next_orig_arg) { iter->i += 2; @@ -614,7 +542,7 @@ enum parse_orig_arg_opt_ret parse_orig_arg_opt(const char * const orig_arg, next_orig_arg, descrs, iter, error, item); } else { /* Short option */ - ret = parse_short_opts(&orig_arg[1], + ret = parse_short_opt_group(&orig_arg[1], next_orig_arg, descrs, iter, error, item); } @@ -774,88 +702,3 @@ unsigned int argpar_iter_ingested_orig_args( { return iter->i; } - -ARGPAR_HIDDEN -struct argpar_parse_ret argpar_parse(const unsigned int argc, - const char * const * const argv, - const struct argpar_opt_descr * const descrs, - const bool fail_on_unknown_opt) -{ - struct argpar_parse_ret parse_ret = { 0 }; - const struct argpar_item *item = NULL; - struct argpar_iter *iter = NULL; - - parse_ret.items = create_item_array(); - if (!parse_ret.items) { - parse_ret.error = strdup("Failed to create items array."); - ARGPAR_ASSERT(parse_ret.error); - goto error; - } - - iter = argpar_iter_create(argc, argv, descrs); - if (!iter) { - parse_ret.error = strdup("Failed to create argpar iter."); - ARGPAR_ASSERT(parse_ret.error); - goto error; - } - - while (true) { - const enum argpar_iter_next_status status = - argpar_iter_next(iter, &item, &parse_ret.error); - - switch (status) { - case ARGPAR_ITER_NEXT_STATUS_ERROR_MISSING_OPT_ARG: - case ARGPAR_ITER_NEXT_STATUS_ERROR_UNEXPECTED_OPT_ARG: - case ARGPAR_ITER_NEXT_STATUS_ERROR_MEMORY: - goto error; - case ARGPAR_ITER_NEXT_STATUS_ERROR_UNKNOWN_OPT: - if (fail_on_unknown_opt) { - parse_ret.ingested_orig_args = - argpar_iter_ingested_orig_args(iter); - goto error; - } - - free(parse_ret.error); - parse_ret.error = NULL; - goto success; - case ARGPAR_ITER_NEXT_STATUS_END: - goto success; - default: - ARGPAR_ASSERT(status == ARGPAR_ITER_NEXT_STATUS_OK); - break; - } - - if (!push_item(parse_ret.items, item)) { - goto error; - } - - item = NULL; - } - -success: - ARGPAR_ASSERT(!parse_ret.error); - parse_ret.ingested_orig_args = argpar_iter_ingested_orig_args(iter); - goto end; - -error: - ARGPAR_ASSERT(parse_ret.error); - - /* That's how we indicate that an error occurred */ - destroy_item_array(parse_ret.items); - parse_ret.items = NULL; - -end: - argpar_iter_destroy(iter); - argpar_item_destroy(item); - return parse_ret; -} - -ARGPAR_HIDDEN -void argpar_parse_ret_fini(struct argpar_parse_ret * const ret) -{ - ARGPAR_ASSERT(ret); - destroy_item_array(ret->items); - ret->items = NULL; - free(ret->error); - ret->error = NULL; -}