80 lines
1.3 KiB
C
80 lines
1.3 KiB
C
#include "./parsarg.h"
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#include <assert.h>
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#include <stddef.h>
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void parsarg_initialize(parsarg_t* pa, int argc, char** argv) {
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assert(pa != NULL);
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*pa = (typeof(*pa)) {
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.argc = argc,
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.argv = argv,
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};
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}
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void parsarg_deinitialize(parsarg_t* pa) {
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assert(pa != NULL);
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}
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char* parsarg_pop_name(parsarg_t* pa, size_t* len) {
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assert(pa != NULL);
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assert(len != NULL);
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*len = 0;
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if (pa->argc <= 0 || pa->value != NULL || pa->after_option) {
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return NULL;
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}
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char* v = *pa->argv;
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size_t offset = 0;
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while (v[offset] == '-') ++offset;
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if (offset == 0) return NULL;
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v += offset;
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--pa->argc;
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++pa->argv;
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if (v[0] == 0) {
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pa->after_option = true;
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return NULL;
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}
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while (v[*len] != '=' && v[*len] != 0) ++*len;
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pa->value = (v[*len] == '='? &v[*len+1]: NULL);
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return v;
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}
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bool parsarg_pop_value(parsarg_t* pa, char** str) {
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assert(pa != NULL);
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assert(str != NULL);
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*str = NULL;
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if (pa->value != NULL) {
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*str = pa->value;
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pa->value = NULL;
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return true;
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}
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if (pa->argc <= 0) return false;
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char* v = *pa->argv;
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if (!pa->after_option) {
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if (v[0] == '-') return false;
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}
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--pa->argc;
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++pa->argv;
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*str = v;
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return true;
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}
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bool parsarg_finished(const parsarg_t* pa) {
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assert(pa != NULL);
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return pa->argc <= 0;
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}
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