// Define Interrupt Service Routine for Port #2
// name of function is predefined
void PIOINT2_IRQHandler(void) {
if (LPC_GPIO2->RIS & (1 << 6)) { //read raw interrupt status
safe_increment((uint32_t * ) & encoder_1_count);
LPC_GPIO2->IC = (1 << 6); //clear edge detection
} else if (LPC_GPIO2->RIS & (1 << 11)) {
safe_increment((uint32_t * ) & encoder_0_count);
LPC_GPIO2->IC = (1 << 11); //clear edge detection
}
}
int parse(int params_count, char * params[], char * commands[]) {
int i;
for (i = 0; i < COMMAND_COUNT; i++) {
commands[i] = malloc(BUFF_SIZE);
memset(commands[i],0,BUFF_SIZE);
}
char buf[2];
int index = -1;
for (i = 0; i < params_count; i++) {
if (strcmp(params[i], "<")==0 || strcmp(params[i], ">")==0 || strcmp(params[i], ">>")==0) {
index = safe_increment(index);
strcat(commands[index], params[i]);
index = safe_increment(index);
} else {
if (index == -1) {
index = safe_increment(index);
}
strcat(commands[index], params[i]);
strcat(commands[index], " ");
}
}
if (strlen(commands[2]) > 1) {
my_sbstr1(commands[2]);
}
if (strlen(commands[4]) > 1) {
my_sbstr1(commands[4]);
}
//check command correctness(correct commands: cmd > file, cmd >> file, cmd < file, cmd < file > file)
if (strcmp(commands[1], ">") != 0 && strcmp(commands[1], ">>") != 0 && strcmp(commands[1], "<") != 0) return -1;
if (strcmp(commands[1], ">") == 0 || strcmp(commands[1], ">>") == 0) {
if (strcmp(commands[3], "\0") != 0) return -1;
}
if (strcmp(commands[1], "<") == 0 ) {
if (strcmp(commands[3], "\0") != 0 && strcmp(commands[3], ">") != 0 && strcmp(commands[3], ">>") != 0) return -1;
}
return 0;
}