• Install stack https://docs.haskellstack.org/en/stable/README/
• git clone https://github.com/hackerspace/gcodehs/
• cd gcodehs
• stack build
• stack install

To pretty-print sample.gcode:

gcodehs -p -i sample.gcode

To parse to JSON:

gcodehs -j -i sample.gcode

See gcodehs --help for usage information.

Filtering and Manipulation:

stack runghc examples/Main.hs sample.gcode

Simple parse and print:

stack runghc examples/Simple.hs sample.gcode

Pretty printing:

stack runghc examples/Pretty.hs sample.gcode

JSON output:

stack runghc examples/JSON.hs sample.gcode

Naive non-streaming example:

stack runghc examples/Naive.hs sample.gcode

Parser won't handle modal GCode such as:

G0 X10 Y20
X0 Y10

Pretty printing is slow due to conversion to text but we do have colors!

Fast pretty printer is needed that operates with ByteStrings directly.

JSON support is only experimental, output is pretty ugly and fromJSON doesn't work, probably bad fromJSON instance for Axes/Params mapdoesn't work, probably bad fromJSON instance for Axes/Params maps.

Generating bash completion:

gcodehs --bash-completion-script `which gcodehs` &> gcodehs-completion.sh

or sourcing directly:

source <(gcodehs --bash-completion-script `which gcodehs`)

Build with profiling enabled:

stack build --profile
stack exec -- gcodehs +RTS -p -RTS -p -i sample.gcode