61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
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#ifndef NS_STR_H
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#define NS_STR_H
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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struct Str_T {
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char *arr;
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size_t len;
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size_t cap;
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};
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typedef struct Str_T Str;
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static void ns_str_init_empty(Str *nstr, size_t capactiy) {
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nstr->len = 0;
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nstr->cap = capactiy;
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nstr->arr = calloc(nstr->cap, sizeof(char));
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}
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static void ns_str_push_char(Str *nstr, char c) {
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if (nstr->len + 2 > nstr->cap) {
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nstr->cap += 8;
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nstr->arr = realloc(nstr->arr, nstr->cap * sizeof(char));
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assert(nstr->arr != NULL);
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}
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nstr->arr[nstr->len] = c;
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nstr->len++;
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nstr->arr[nstr->len] = '\0';
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}
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static void ns_str_push(Str *nstr, char *str) {
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size_t strlen_str = strlen(str);
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if (nstr->len + strlen_str + 1 > nstr->cap) {
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nstr->cap = nstr->len + strlen_str + 8;
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nstr->arr = realloc(nstr->arr, nstr->cap * sizeof(char));
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assert(nstr->arr != NULL);
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}
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strncpy(nstr->arr + nstr->len, str, nstr->cap - nstr->len);
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nstr->len = nstr->len + strlen_str;
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}
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static void ns_str_set(Str *nstr, char *str) {
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size_t strlen_str = strlen(str);
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nstr->cap = strlen_str + 1;
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nstr->arr = realloc(nstr->arr, nstr->cap * sizeof(char));
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assert(nstr->arr != NULL);
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strncpy(nstr->arr, str, nstr->cap);
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nstr->len = strlen_str;
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}
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static void ns_str_destroy(Str *nstr) {
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free(nstr->arr);
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nstr->arr = NULL;
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nstr->len = 0;
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nstr->cap = 0;
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}
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#endif
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