79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
#include <stdbool.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include <util/bmem.h>
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#include <util/dstr.h>
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#include "opts-parser.h"
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static bool getparam(const char *param, char **name, const char **value)
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{
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const char *assign;
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if (!param || !*param || (*param == '='))
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return false;
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assign = strchr(param, '=');
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if (!assign || !*assign || !*(assign + 1))
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return false;
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*name = bstrdup_n(param, assign - param);
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*value = assign + 1;
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return true;
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}
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struct obs_options obs_parse_options(const char *options_string)
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{
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if (!options_string || !*options_string)
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goto failure;
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char **input_words = strlist_split(options_string, ' ', false);
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if (!input_words)
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goto failure;
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size_t input_option_count = 0;
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for (char **input_word = input_words; *input_word; ++input_word)
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input_option_count += 1;
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char **ignored_words =
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bmalloc(input_option_count * sizeof(*ignored_words));
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char **ignored_word = ignored_words;
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struct obs_option *out_options =
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bmalloc(input_option_count * sizeof(*out_options));
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struct obs_option *out_option = out_options;
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for (char **input_word = input_words; *input_word; ++input_word) {
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if (getparam(*input_word, &out_option->name,
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(const char **)&out_option->value)) {
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++out_option;
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} else {
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*ignored_word = *input_word;
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++ignored_word;
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}
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}
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return (struct obs_options){
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.count = out_option - out_options,
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.options = out_options,
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.ignored_word_count = ignored_word - ignored_words,
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.ignored_words = ignored_words,
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.input_words = input_words,
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};
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failure:
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return (struct obs_options){
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.count = 0,
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.options = NULL,
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.ignored_word_count = 0,
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.ignored_words = NULL,
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.input_words = NULL,
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};
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}
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void obs_free_options(struct obs_options options)
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{
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for (size_t i = 0; i < options.count; ++i) {
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bfree(options.options[i].name);
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}
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bfree(options.options);
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bfree(options.ignored_words);
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strlist_free(options.input_words);
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}
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