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Add G-code "backspace" support

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This commit is contained in:
Scott Lahteine 2020-06-08 17:28:25 -05:00
parent 265ab19ed2
commit ca5a8ea827
1 changed files with 9 additions and 3 deletions
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6
Marlin/src/gcode/queue.cpp
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@ -387,10 +387,16 @@ inline void process_stream_char(const char c, uint8_t &sis, char (&buff)[MAX_CMD
} }
#endif #endif
// Backspace erases previous characters
if (c == 0x08) {
if (ind) buff[--ind] = '\0';
}
else {
buff[ind++] = c; buff[ind++] = c;
if (ind >= MAX_CMD_SIZE - 1) if (ind >= MAX_CMD_SIZE - 1)
sis = PS_EOL; // Skip the rest on overflow sis = PS_EOL; // Skip the rest on overflow
} }
}
/** /**
* Handle a line being completed. For an empty line * Handle a line being completed. For an empty line