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native unescape json string

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lxsang 2020-06-18 09:51:41 +02:00
parent 0d28bf935a
commit d321724ae9
1 changed files with 58 additions and 4 deletions
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62
lib/asl/json.c
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@ -108,10 +108,63 @@ static void stackDump (lua_State *L) {
*/ */
static int process_token_string(lua_State* L, jsmntok_t* t, const char* s, int cid) static int process_token_string(lua_State* L, jsmntok_t* t, const char* s, int cid)
{ {
// unescape a string // un escape the string
//const char* search_token[8] = {"\\\\","\\\"","\\n","\\t","\\b","\\f","\\r","\\/"}; char * str = (char*) malloc(t[cid].end-t[cid].start + 1);
//const char* replace_token[8] = {"\\","\"","\n","\t","\b","\f","\r","/"}; int index = 0;
char * str = strndup(s+t[cid].start, t[cid].end-t[cid].start); char c;
uint8_t escape = 0;
for (int i = t[cid].start; i < t[cid].end; i++)
{
c = *(s+i);
if(c == '\\')
{
if(escape)
{
str[index] = c;
escape = 0;
index++;
}
else
{
escape = 1;
}
}
else
{
if(escape)
{
switch (c)
{
case 'b':
str[index] = '\b';
break;
case 'f':
str[index] = '\f';
break;
case 'n':
str[index] = '\n';
break;
case 'r':
str[index] = '\r';
break;
case 't':
str[index] = '\t';
break;
default:
str[index] = c;
}
}
else
{
str[index] = c;
}
index++;
escape = 0;
}
}
str[index] = '\0';
//strndup(s+t[cid].start, t[cid].end-t[cid].start);
// un escape the string // un escape the string
/*lua_getglobal(L, "utils"); /*lua_getglobal(L, "utils");
lua_getfield(L, -1, "unescape"); lua_getfield(L, -1, "unescape");
@ -125,6 +178,7 @@ static int process_token_string(lua_State* L, jsmntok_t* t, const char* s, int c
//stackDump(L); //stackDump(L);
//lua_pushstring(L, str); //lua_pushstring(L, str);
//printf("%s\n",strndup(s+t[cid].start, t[cid].end-t[cid].start) ); //printf("%s\n",strndup(s+t[cid].start, t[cid].end-t[cid].start) );
if(str) free(str);
return cid+1; return cid+1;
} }
static int process_token_primitive(lua_State* L, jsmntok_t* t, const char* s, int cid) static int process_token_primitive(lua_State* L, jsmntok_t* t, const char* s, int cid)