+/* Helpers
+ */
+
+#define FILTER_PARAM_PARSE_STRING(Param, Dest) \
+ case ATK_ ## Param: { \
+ (Dest) = param->value; \
+ } break
+
+#define FILTER_PARAM_PARSE_INT(Param, Dest) \
+ case ATK_ ## Param: { \
+ char *next; \
+ (Dest) = strtol(param->value, &next, 10); \
+ PARSE_CHECK(!*next, "invalid %s value %s", atokens[ATK_ ## Param], \
+ param->value); \
+ } break
+
+#define FILTER_PARAM_PARSE_BOOLEAN(Param, Dest) \
+ case ATK_ ## Param: { \
+ if (param->value[0] == '1' && param->value[1] == '\0') { \
+ (Dest) = true; \
+ } else if (param->value[0] == '0' && param->value[1] == '\0') { \
+ (Dest) = false; \
+ } else if (ascii_tolower(param->value[0]) == 't') { \
+ (Dest) = ascii_tolower(param->value[1]) == 'r' \
+ && ascii_tolower(param->value[2]) == 'u' \
+ && ascii_tolower(param->value[3]) == 'e' \
+ && !param->value[4]; \
+ } else if (ascii_tolower(param->value[0]) == 'f') { \
+ (Dest) = ascii_tolower(param->value[1]) == 'a' \
+ && ascii_tolower(param->value[2]) == 'l' \
+ && ascii_tolower(param->value[3]) == 's' \
+ && ascii_tolower(param->value[4]) == 'e' \
+ && !param->value[5]; \
+ } else { \
+ PARSE_CHECK(false, "invalid %s value %s", atokens[ATK_ ## Param], \
+ param->value); \
+ } \
+ } break
+