SqlParser::SqlParser(GPtrArray *tk, GString *sql) :
tokens(tk), inputSql(sql) {
needFreeTokens = tokens == NULL;
if (tokens == NULL) {
tokens = g_ptr_array_new();
sql_tokenizer(tokens, sql->str, sql->len);
}
}
/**
* split the SQL query into a stream of tokens
*/
int proxy_tokenize(lua_State *L) {
size_t str_len;
const char *str = luaL_checklstring(L, 1, &str_len);
GPtrArray *tokens = sql_tokens_new();
GPtrArray **tokens_p;
sql_tokenizer(tokens, str, str_len);
tokens_p = lua_newuserdata(L, sizeof(tokens)); /* (sp += 1) */
*tokens_p = tokens;
sql_tokenizer_lua_getmetatable(L);
lua_setmetatable(L, -2); /* tie the metatable to the udata (sp -= 1) */
return 1;
}
int main(void)
{
const char *sql = test_sql;
int tlen;
int tok;
bool stdstr = false;
while (1) {
tok = sql_tokenizer(sql, &tlen, stdstr);
if (tok == 0) {
printf("EOF\n");
break;
} else if (tok < 0) {
printf("ERR\n");
return 1;
}
printf("tok=%d len=%d str=<%.*s>\n", tok, tlen, tlen, sql);
sql += tlen;
}
return 0;
}