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Bug_ESP32.zip
Bug_ESP32_fixed.zip

I found an issue with GetWordValue when I ran the provide example on an ESP32 cpu:
GetWordValue returns 288 for the input "G0X120". For "G00X120" I get the correct value of 0.

Running the same code on an Arduino I always got the correct value. I fixed this by using:

if ((line[pointer + 1] == '0') && (line[pointer + 2] == 'X'))
  return 0.0;
else
  return (double)strtod(&line[pointer + 1], NULL);

instead of:

return (double)strtod(&line[pointer + 1], NULL);

Please run the code in Bug_ESP32.zip to see this output on an ESP32:

Ready

Command Line: G0X120Z-10F30
Comment(s):
Process G code: 288

Command Line: G0X1
Comment(s):
Process G code: 1

Command Line: G0X12
Comment(s):
Process G code: 18

Command Line: G0X120
Comment(s):
Process G code: 288

Command Line: G00X120
Comment(s):
Process G code: 0