81 lines
2.0 KiB
C
81 lines
2.0 KiB
C
#include "cell.h"
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
#define KIM_IMPLEMENTATION
|
|
#include "kim.h"
|
|
|
|
JSC_CCALL(kim_encode,
|
|
const char *utf8_str = JS_ToCString(js, argv[0]);
|
|
if (!utf8_str) return JS_EXCEPTION;
|
|
|
|
// Count runes to estimate kim buffer size
|
|
int rune_count = utf8_count(utf8_str);
|
|
|
|
// Allocate kim buffer (worst case: 5 bytes per rune)
|
|
size_t kim_size = rune_count * 5;
|
|
char *kim_buffer = malloc(kim_size);
|
|
char *kim_ptr = kim_buffer;
|
|
|
|
// Encode utf8 to kim
|
|
long long runes_encoded;
|
|
utf8_to_kim(&utf8_str, &kim_ptr, &runes_encoded);
|
|
|
|
// Calculate actual size used
|
|
size_t actual_size = kim_ptr - kim_buffer;
|
|
|
|
// Create blob with the encoded data
|
|
ret = js_new_blob_stoned_copy(js, kim_buffer, actual_size);
|
|
|
|
free(kim_buffer);
|
|
JS_FreeCString(js, utf8_str);
|
|
)
|
|
|
|
JSC_CCALL(kim_decode,
|
|
size_t kim_len;
|
|
void *kim_data = js_get_blob_data(js, &kim_len, argv[0]);
|
|
if (kim_data == (void *)-1) return JS_EXCEPTION;
|
|
if (!kim_data) return JS_NewString(js, "");
|
|
|
|
// Allocate UTF-8 buffer (worst case: 4 bytes per kim byte)
|
|
size_t utf8_size = kim_len * 4;
|
|
char *utf8_buffer = malloc(utf8_size + 1); // +1 for null terminator
|
|
char *utf8_ptr = utf8_buffer;
|
|
|
|
// Copy kim data since kim_to_utf8 modifies the pointer
|
|
char *kim_copy = malloc(kim_len);
|
|
memcpy(kim_copy, kim_data, kim_len);
|
|
char *kim_ptr = kim_copy;
|
|
|
|
// Count runes in kim data
|
|
int rune_count = 0;
|
|
char *temp_ptr = kim_copy;
|
|
while (temp_ptr < kim_copy + kim_len) {
|
|
decode_kim(&temp_ptr);
|
|
rune_count++;
|
|
}
|
|
|
|
// Reset pointer and decode
|
|
kim_ptr = kim_copy;
|
|
kim_to_utf8(&kim_ptr, &utf8_ptr, rune_count);
|
|
|
|
// Null terminate
|
|
*utf8_ptr = '\0';
|
|
|
|
ret = JS_NewString(js, utf8_buffer);
|
|
|
|
free(utf8_buffer);
|
|
free(kim_copy);
|
|
)
|
|
|
|
static const JSCFunctionListEntry js_kim_funcs[] = {
|
|
MIST_FUNC_DEF(kim, encode, 1),
|
|
MIST_FUNC_DEF(kim, decode, 1),
|
|
};
|
|
|
|
JSValue js_kim_use(JSContext *js)
|
|
{
|
|
JSValue mod = JS_NewObject(js);
|
|
JS_SetPropertyFunctionList(js, mod, js_kim_funcs, countof(js_kim_funcs));
|
|
return mod;
|
|
} |