ManuelW/grbl-LPC-CoreXY
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Moved comment and block delete handling to be done in protocol.c rather than gcode.c. Prevents these from being held in memory. Also, fixes bug when comments and block delete character are mixed with g-code.

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chamnit 2011-08-15 17:06:50 -06:00
parent 517a0f659a
commit ea5b8942db
1 changed files with 33 additions and 12 deletions
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45
protocol.c
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@ -72,20 +72,41 @@ uint8_t protocol_execute_line(char *line) {
void protocol_process()
{
char c;
uint8_t iscomment = false;
while((c = serial_read()) != SERIAL_NO_DATA)
{
if((char_counter > 0) && ((c == '\n') || (c == '\r'))) { // Line is complete. Then execute!
line[char_counter] = 0; // treminate string
status_message(protocol_execute_line(line));
char_counter = 0; // reset line buffer index
} else if (c <= ' ') {
// Throw away whitepace and control characters
} else if (char_counter >= LINE_BUFFER_SIZE-1) {
// Throw away any characters beyond the end of the line buffer
} else if (c >= 'a' && c <= 'z') { // Upcase lowercase
line[char_counter++] = c-'a'+'A';
} else {
line[char_counter++] = c;
if (iscomment) {
// While in comment, skip all characters until ')', '\n', or '\r'
if ((c == ')') || (c == '\n') || (c == '\r')) {
iscomment = false;
}
}
if (!iscomment) { // Seperate if-statement to process '\n' or '\r' at end of comment
if ((c == '\n') || (c == '\r')) { // End of block reached
if (char_counter > 0) {// Line is complete. Then execute!
line[char_counter] = 0; // terminate string
status_message(protocol_execute_line(line));
char_counter = 0; // reset line buffer index
} else {
// Empty or comment line. Skip block.
status_message(STATUS_OK); // Send status message for syncing purposes.
}
} else if (c <= ' ') {
// Throw away whitepace and control characters
} else if (c == '/') {
// Disable block delete and throw away character
// To enable block delete, uncomment following line
// iscomment = true;
} else if (c == '(') {
// Enable comments and ignore all characters until ')' or '\n'
iscomment = true;
} else if (char_counter >= LINE_BUFFER_SIZE-1) {
// Throw away any characters beyond the end of the line buffer
} else if (c >= 'a' && c <= 'z') { // Upcase lowercase
line[char_counter++] = c-'a'+'A';
} else {
line[char_counter++] = c;
}
}
}
}