stat_t set_grp(nvObj_t *nv)
{
if (cfg.comm_mode == TEXT_MODE)
return (STAT_INVALID_OR_MALFORMED_COMMAND);
for (uint8_t i=0; i<NV_MAX_OBJECTS; i++) {
if ((nv = nv->nx) == NULL) break;
if (nv->valuetype == TYPE_EMPTY) break;
else if (nv->valuetype == TYPE_NULL) // NULL means GET the value
nv_get(nv);
else {
nv_set(nv);
nv_persist(nv);
}
}
return (STAT_OK);
}
static stat_t _json_parser_kernal(char *str)
{
stat_t status;
int8_t depth;
nvObj_t *nv = nv_reset_nv_list(); // get a fresh nvObj list
char group[GROUP_LEN+1] = {""}; // group identifier - starts as NUL
int8_t i = NV_BODY_LEN;
ritorno(_normalize_json_string(str, JSON_OUTPUT_STRING_MAX)); // return if error
// parse the JSON command into the nv body
do {
if (--i == 0) { return (STAT_JSON_TOO_MANY_PAIRS); } // length error
// if ((status = _get_nv_pair_strict(nv, &str, &depth)) > STAT_EAGAIN) { // erred out
if ((status = _get_nv_pair(nv, &str, &depth)) > STAT_EAGAIN) { // erred out
return (status);
}
// propagate the group from previous NV pair (if relevant)
if (group[0] != NUL) {
strncpy(nv->group, group, GROUP_LEN); // copy the parent's group to this child
}
// validate the token and get the index
if ((nv->index = nv_get_index(nv->group, nv->token)) == NO_MATCH) {
nv->valuetype = TYPE_NULL;
return (STAT_UNRECOGNIZED_NAME);
}
if ((nv_index_is_group(nv->index)) && (nv_group_is_prefixed(nv->token))) {
strncpy(group, nv->token, GROUP_LEN); // record the group ID
}
if ((nv = nv->nx) == NULL) return (STAT_JSON_TOO_MANY_PAIRS);// Not supposed to encounter a NULL
} while (status != STAT_OK); // breaks when parsing is complete
// execute the command
nv = nv_body;
if (nv->valuetype == TYPE_NULL){ // means GET the value
ritorno(nv_get(nv)); // ritorno returns w/status on any errors
} else {
cm_parse_clear(*nv->stringp); // parse Gcode and clear alarms if M30 or M2 is found
ritorno(cm_is_alarmed()); // return error status if in alarm, shutdown or panic
ritorno(nv_set(nv)); // set value or call a function (e.g. gcode)
nv_persist(nv);
}
return (STAT_OK); // only successful commands exit through this point
}
/******************************************************************************
* text_parser() - update a config setting from a text block (text mode)
* _text_parser_kernal() - helper for above
*
* Use cases handled:
* - $xfr=1200 set a parameter (strict separators))
* - $xfr 1200 set a parameter (relaxed separators)
* - $xfr display a parameter
* - $x display a group
* - ? generate a status report (multiline format)
*/
stat_t text_parser(char_t *str)
{
nvObj_t *nv = nv_reset_nv_list(); // returns first object in the body
stat_t status = STAT_OK;
// trap special displays
if (str[0] == '?') { // handle status report case
sr_run_text_status_report();
return (STAT_OK);
}
if (str[0] == 'H') { // print help screens
help_general((nvObj_t *)NULL);
return (STAT_OK);
}
// pre-process the command
if ((str[0] == '$') && (str[1] == NUL)) { // treat a lone $ as a sys request
strcat(str,"sys");
}
// parse and execute the command (only processes 1 command per line)
ritorno(_text_parser_kernal(str, nv)); // run the parser to decode the command
if ((nv->valuetype == TYPE_NULL) || (nv->valuetype == TYPE_PARENT)) {
if (nv_get(nv) == STAT_COMPLETE){ // populate value, group values, or run uber-group displays
return (STAT_OK); // return for uber-group displays so they don't print twice
}
} else { // process SET and RUN commands
if (cm.machine_state == MACHINE_ALARM)
return (STAT_MACHINE_ALARMED);
status = nv_set(nv); // set (or run) single value
if (status == STAT_OK) {
nv_persist(nv); // conditionally persist depending on flags in array
}
}
nv_print_list(status, TEXT_MULTILINE_FORMATTED, JSON_RESPONSE_FORMAT); // print the results
return (status);
}
int main(int argc, char **argv) {
if (argc != 2) return 1;
nv_get(argv[1]);
return 0;
}
