ref: 309ff4672b7f5cba9bca1ce8657f767b51f32220 scdoc/src/string.c -rw-r--r-- 800 bytes View raw
                                                                                
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#include <stdlib.h>
#include <stdint.h>
#include "str.h"
#include "unicode.h"

static int ensure_capacity(str_t *str, size_t len) {
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if (len + 1 >= str->size) { char *new = realloc(str->str, str->size * 2); if (!new) { return 0; } str->str = new; str->size *= 2; } return 1; } str_t *str_create() {
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str_t *str = calloc(sizeof(str_t), 1); str->str = malloc(16); str->size = 16; str->len = 0; str->str[0] = '\0'; return str; } void str_free(str_t *str) {
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if (!str) return; free(str->str); free(str); } int str_append_ch(str_t *str, uint32_t ch) {
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int size = utf8_chsize(ch); if (size <= 0) { return -1; } if (!ensure_capacity(str, str->len + size)) { return -1; } utf8_encode(&str->str[str->len], ch); str->len += size; str->str[str->len] = '\0'; return size; }