ConvertScript.py

'''
Fix Autodesk CAM General LabVolt code to work with LabVolt M600 Mills

This probably requires some generalisation before it works with all setups

Code is heavily commented, but a basic knowledge of regex is required still

Consider it a dirty hack until proven otherwise

Current features:
	Moves G00 to the front of the line when necessary
	Changes T# codes to M06 # codes
	Changes S#### M3 to M03 S####
	Removes all M1 codes

Usage: python ConvertScript.py <file>

All code is licensed under the MIT License
'''

# Import re for rege and sys for command line arguments

import re
import sys

# Open file and copy contents if extension is .nc - otherwise throw error

fo = open(sys.argv[1], 'r')
if fo.name:
	if fo.name.split(".")[-1] != "nc":
		print("Error: File must be of type .nc")
		sys.exit()
else:
	"Usage: python ConvertScript.py <file>"
name = fo.name.split(".")
lines = fo.readlines()
fo.close()

# Iterate through string and fix errors

g = re.compile('^[XYZ].+G00.*$') # Regex for embedded G00 codes
t = re.compile('^T\d\n$') # Regex character for T codes
m = re.compile('^S\d{4} M3$') # Regex character for M3 codes

for s in lines:
	match = g.match(s) # Check if string has a G00, if so...
	if match:
		modStr = re.sub(re.escape('G00 '), '', s) # Remove G00
		modStr = "G00 " + modStr # Add it to beginning
		lines[lines.index(s)] = modStr # And replace the original line

	match = t.match(s) # Check if format for string is T and a number, if so...
	if match:
		num = s[1] # Get tool number that we're trying to change to
		lines[lines.index(s)] = 'M06 ' + num + '\n' # Replace original string

	match = m.match(s) # Check if string has an M3 code, if so...
	if match:
		modStr = re.sub(re.escape(' M3'), '', s) # Remove M3
		modStr = "M03 " + modStr # Add it to beginning
		lines[lines.index(s)] = modStr # And replace the original line

	if s == "M1\n": # Remove all instances of M1
		lines.pop(lines.index(s))

fo = open(name[0] + ".m5", 'w')
for line in lines:
	fo.writelines(line)