Method step

FluidNC/src/lineedit.cpp:462–654

Returns true when the line is complete cppcheck-suppress unusedFunction

// Returns true when the line is complete
// cppcheck-suppress unusedFunction
bool Lineedit::step(int c) {
    // Regardless of editing mode, ^L turns off editing/echoing
    if (c == CTRL('l')) {
        editing = false;
        return false;
    }

    if (!editing) {
        if (c < ' ') {
            if (c == '\r' || c == '\n') {
                return true;
            }
            needs_reecho = true;
            editing      = true;
            // continue to editing code below
        } else {
            addchar(c, false);
            return false;
        }
    }

    if (needs_reecho) {
        needs_reecho = false;
        echo_line();
    }

    // If we are running on Windows, key() returns the SPECIAL_* values
    // for non-ASCII movement keys.  Under a terminal emulator, such keys
    // generate escape sequences that we parse herein and convert to
    // those SPECIAL_* values.

    // Expecting [ as second character of escape sequence
    if (escaping == 1) {
        if (c >= 'A' && c <= 'Z') {
            c += 'a' - 'A';
        }
        switch (c) {
            case '[':
                escaping = 2;
                return false;
            case 'f':
                forward_word();
                break;
            case 'b':
                backward_word();
                break;
        }
        escaping = 0;
        return false;
    }

    // Expecting third character of escape sequence
    if (escaping == 2) {
        escaping = 0;
        switch (c) {
            // In these 3 cases we have to get one more byte, typically ~
            case '2':
                escaping = SPECIAL_HOME;