"""
Gcodec is a collection of utilities to decode and encode gcode.

To run gcodec, install python 2.x on your machine, which is avaliable from http://www.python.org/download/

Then in the folder which gcodec is in, type 'python' in a shell to run the python interpreter.  Finally type 'from gcodec import *' to import this program.

Below is an example of gcodec use.  This example is run in a terminal in the folder which contains gcodec and Screw Holder Bottom_export.gcode.

>>> from gcodec import *
>>> getFileText('Screw Holder Bottom_export.gcode')
'G90\nG21\nM103\nM105\nM106\nM110 S60.0\nM111 S30.0\nM108 S210.0\nM104 S235.0\nG1 X0.37 Y-4.07 Z1.9 F60.0\nM101\n
..
many lines of text
..

"""

from __future__ import absolute_import
#Init has to be imported first because it has code to workaround the python bug where relative imports don't work if the module is imported as a main module.
import __init__

from skeinforge_tools.skeinforge_utilities.vector3 import Vector3
from skeinforge_tools.skeinforge_utilities import euclidean
import cStringIO
import os
import sys


__author__ = "Enrique Perez (perez_enrique@yahoo.com)"
__date__ = "$Date: 2008/21/04 $"
__license__ = "GPL 3.0"


#getFileTextInFileDirectory might not be needed anymore
def addLineAndNewlineIfNecessary( line, output ):
	"Add the line and if the line does not end with a newline add a newline."
	output.write( line )
	if len( line ) < 1:
		return
	if not getHasSuffix( line, '\n' ):
		output.write( '\n' )

def createInitFile():
	"Create the __init__.py file."
	fileText = '__all__ = ' + str( getPythonFileNamesExceptInit() )
	writeFileText( '__init__.py', fileText )

def findWords( fileNames, search ):
	"Find in files the search."
	print( search + ' is being searched for.' )
	for fileName in fileNames:
		fileText = getFileText( fileName )
		if fileText != '':
			whereInText = fileText.find( search )
			if whereInText != - 1:
				print( fileName )
				print( whereInText )
				whereInTextFromEnd = fileText.rfind( search )
				if whereInTextFromEnd != whereInText:
					print( whereInTextFromEnd )

def getAbsoluteFolderPath( filePath, folderName = '' ):
	"Get the double value of the word after the first letter."
	absoluteFolderPath = os.path.dirname( os.path.abspath( filePath ) )
	if folderName == '':
		return absoluteFolderPath
	return os.path.join( absoluteFolderPath, folderName )

def getDoubleAfterFirstLetter( word ):
	"Get the double value of the word after the first letter."
	return float( word[ 1 : ] )

def getDoubleForLetter( letter, splitLine ):
	"Get the double value of the word after the first occurence of the letter in the split line."
	return getDoubleAfterFirstLetter( splitLine[ indexOfStartingWithSecond( letter, splitLine ) ] )

def getDoubleFromCharacterSplitLine( character, splitLine ):
	"Get the double value of the string after the first occurence of the character in the split line."
	indexOfCharacter = indexOfStartingWithSecond( character, splitLine )
	if indexOfCharacter < 0:
		return None
	floatString = splitLine[ indexOfCharacter ][ 1 : ]
	try:
		return float( floatString )
	except ValueError:
		return None

def getDoubleFromCharacterSplitLineValue( character, splitLine, value ):
	"Get the double value of the string after the first occurence of the character in the split line, if it does not exist return the value."
	splitLineFloat = getDoubleFromCharacterSplitLine( character, splitLine )
	if splitLineFloat == None:
		return value
	return splitLineFloat

def getFeedRateMinute( feedRateMinute, splitLine ):
	"Get the feed rate per minute if the split line has a feed rate."
	indexOfF = indexOfStartingWithSecond( "F", splitLine )
	if indexOfF > 0:
		return getDoubleAfterFirstLetter( splitLine[ indexOfF ] )
	return feedRateMinute

def getFilePathWithUnderscoredBasename( fileName, suffix ):
	"Get the file path with all spaces in the basename replaced with underscores."
	suffixFileName = getUntilDot( fileName ) + suffix
	suffixDirectoryName = os.path.dirname( suffixFileName )
	suffixReplacedBaseName = os.path.basename( suffixFileName ).replace( ' ', '_' )
	return os.path.join( suffixDirectoryName, suffixReplacedBaseName )

def getFilesWithFileTypesWithoutWords( fileTypes, words = [], fileInDirectory = '' ):
	"Get files which have a given file type, but with do not contain a word in a list."
	filesWithFileTypes = []
	for fileType in fileTypes:
		filesWithFileTypes += getFilesWithFileTypeWithoutWords( fileType, words, fileInDirectory )
	filesWithFileTypes.sort()
	return filesWithFileTypes

def getFilesWithFileTypeWithoutWords( fileType, words = [], fileInDirectory = '' ):
	"Get files which have a given file type, but with do not contain a word in a list."
	filesWithFileType = []
	directoryName = os.getcwd()
	if fileInDirectory != '':
		directoryName = os.path.dirname( fileInDirectory )
	directory = os.listdir( directoryName )
	for fileName in directory:
		joinedFileName = fileName
		if fileInDirectory != '':
			joinedFileName = os.path.join( directoryName, fileName )
		if isFileWithFileTypeWithoutWords( fileType, joinedFileName, words ):
			filesWithFileType.append( joinedFileName )
	filesWithFileType.sort()
	return filesWithFileType

def getFileText( fileName, readMode = 'r', printWarning = True ):
	"Get the entire text of a file."
	try:
		file = open( fileName, readMode )
		fileText = file.read()
		file.close()
		return fileText
	except IOError:
		if printWarning:
			print( 'The file ' + fileName + ' does not exist.' )
		return ''

def getFileTextInFileDirectory( fileInDirectory, fileName, readMode = 'r' ):
	"Get the entire text of a file in the directory of the file in directory."
	absoluteFilePathInFileDirectory = os.path.join( os.path.dirname( fileInDirectory ), fileName )
	return getFileText( absoluteFilePathInFileDirectory, readMode )

def getFirstWord( splitLine ):
	"Get the first word of a split line."
	if len( splitLine ) > 0:
		return splitLine[ 0 ]
	return ''

def getFirstWordFromLine( line ):
	"Get the first word of a line."
	return getFirstWord( line.split() )

def getGcodeFileText( fileName, gcodeText ):
	"Get the gcode text from a file if it the gcode text is empty and if the file is a gcode file."
	if gcodeText != '':
		return gcodeText
	if getHasSuffix( fileName, '.gcode' ):
		return getFileText( fileName )
	return ''

def getHasPrefix( name, prefix ):
	"Determine if the word begins with the prefix."
	return name[ : len( prefix ) ].lower() == prefix

def getHasSuffix( name, suffix ):
	"Determine if the word ends with the suffix."
	return name[ - len( suffix ) : ].lower() == suffix

def getLocationFromSplitLine( oldLocation, splitLine ):
	"Get the location from the split line."
	if oldLocation == None:
		oldLocation = Vector3()
	return Vector3(
		getDoubleFromCharacterSplitLineValue( 'X', splitLine, oldLocation.x ),
		getDoubleFromCharacterSplitLineValue( 'Y', splitLine, oldLocation.y ),
		getDoubleFromCharacterSplitLineValue( 'Z', splitLine, oldLocation.z ) )

def getModuleWithDirectoryPath( directoryPath, fileName ):
	"Get the module from the fileName and folder name."
	if fileName == '':
		print( 'The file name in getModule in gcodec was empty.' )
		return None
	originalSystemPath = sys.path[ : ]
	try:
		sys.path.insert( 0, directoryPath )
		folderPluginsModule = __import__( fileName )
		sys.path = originalSystemPath
		return folderPluginsModule
	except Exception, why:
		sys.path = originalSystemPath
		print( why )
		print( '' )
		print( 'That error means; could not import a module with the fileName ' + fileName )
		print( 'and an absolute directory name of ' + directoryPath )
		print( '' )
		print( 'The plugin could not be imported.  So to run ' + fileName + ' directly and at least get a more informative error message,' )
		print( 'in a shell in the ' + directoryPath + ' folder type ' )
		print( '> python ' + fileName + '.py' )
	return None

def getModuleWithPath( path ):
	"Get the module from the path."
	return getModuleWithDirectoryPath( os.path.dirname( path ), os.path.basename( path ) )

def getPluginFileNamesFromDirectoryPath( directoryPath ):
	"Get the file names of the python plugins in the directory path."
	fileInDirectory = os.path.join( directoryPath, '__init__.py' )
	fullPluginFileNames = getPythonFileNamesExceptInit( fileInDirectory )
	pluginFileNames = []
	for fullPluginFileName in fullPluginFileNames:
		pluginBasename = os.path.basename( fullPluginFileName )
		pluginBasename = getUntilDot( pluginBasename )
		pluginFileNames.append( pluginBasename )
	return pluginFileNames

def getPythonDirectoryNames( directoryName ):
	"Get the python directories."
	pythonDirectoryNames = []
	directory = os.listdir( directoryName )
	for fileName in directory:
		subdirectoryName = os.path.join( directoryName, fileName )
		if os.path.isdir( subdirectoryName ):
			if os.path.isfile( os.path.join( subdirectoryName, '__init__.py' ) ):
				pythonDirectoryNames.append( subdirectoryName )
	return pythonDirectoryNames

def getPythonDirectoryNamesRecursively( directoryName = '' ):
	"Get the python directories recursively."
	recursivePythonDirectoryNames = []
	if directoryName == '':
		directoryName = os.getcwd()
	if os.path.isfile( os.path.join( directoryName, '__init__.py' ) ):
		recursivePythonDirectoryNames.append( directoryName )
		pythonDirectoryNames = getPythonDirectoryNames( directoryName )
		for pythonDirectoryName in pythonDirectoryNames:
			recursivePythonDirectoryNames += getPythonDirectoryNamesRecursively( pythonDirectoryName )
	else:
		return []
	return recursivePythonDirectoryNames

def getPythonFileNamesExceptInit( fileInDirectory = '' ):
	"Get the python fileNames of the directory which the fileInDirectory is in, except for the __init__.py file."
	pythonFileNamesExceptInit = getFilesWithFileTypeWithoutWords( 'py', [ '__init__.py' ], fileInDirectory )
	pythonFileNamesExceptInit.sort()
	return pythonFileNamesExceptInit

def getPythonFileNamesExceptInitRecursively( directoryName = '' ):
	"Get the python fileNames of the directory recursively, except for the __init__.py files."
	pythonDirectoryNames = getPythonDirectoryNamesRecursively( directoryName )
	pythonFileNamesExceptInitRecursively = []
	for pythonDirectoryName in pythonDirectoryNames:
		pythonFileNamesExceptInitRecursively += getPythonFileNamesExceptInit( os.path.join( pythonDirectoryName, '__init__.py' ) )
	pythonFileNamesExceptInitRecursively.sort()
	return pythonFileNamesExceptInitRecursively

def getSplitLineBeforeBracketSemicolon( line ):
	"Get the split line before a bracket or semicolon."
	bracketSemicolonIndex = min( line.find( ';' ), line.find( '(' ) )
	if bracketSemicolonIndex < 0:
		return line.split()
	return line[ : bracketSemicolonIndex ].split()

def getStringFromCharacterSplitLine( character, splitLine ):
	"Get the string after the first occurence of the character in the split line."
	indexOfCharacter = indexOfStartingWithSecond( character, splitLine )
	if indexOfCharacter < 0:
		return None
	return splitLine[ indexOfCharacter ][ 1 : ]

def getSummarizedFileName( fileName ):
	"Get the fileName basename if the file is in the current working directory, otherwise return the original full name."
	if os.getcwd() == os.path.dirname( fileName ):
		return os.path.basename( fileName )
	return fileName

def getTextIfEmpty( fileName, text ):
	"Get the text from a file if it the text is empty."
	if text != '':
		return text
	return getFileText( fileName )

def getTextLines( text ):
	"Get the all the lines of text of a text."
	return text.replace( '\r', '\n' ).replace( '\n\n', '\n' ).split( '\n' )

def getUnmodifiedGCodeFiles( fileInDirectory = '' ):
	"Get gcode files which are not modified."
	#transform may be needed in future but probably won't
	words = ' carve clip comb comment cool fill fillet hop inset oozebane raft stretch tower wipe'.replace( ' ', ' _' ).split()
	return getFilesWithFileTypeWithoutWords( 'gcode', words, fileInDirectory )

def getUntilDot( text ):
	"Get the text until the last dot, if any."
	dotIndex = text.rfind( '.' )
	if dotIndex < 0:
		return text
	return text[ : dotIndex ]

def getVersionFileName():
	"Get the file name of the version date."
	return os.path.join( os.path.dirname( os.path.abspath( __file__ ) ), 'version.txt' )

def getWithoutBracketsEqualTab( line ):
	"Get a string without the greater than sign, the bracket and less than sign, the equal sign or the tab."
	line = line.replace( '=', ' ' )
	line = line.replace( '(<', '' )
	line = line.replace( '>', '' )
	return line.replace( '\t', '' )

def indexOfStartingWithSecond( letter, splitLine ):
	"Get index of the first occurence of the given letter in the split line, starting with the second word.  Return - 1 if letter is not found"
	for wordIndex in xrange( 1, len( splitLine ) ):
		word = splitLine[ wordIndex ]
		firstLetter = word[ 0 ]
		if firstLetter == letter:
			return wordIndex
	return - 1

def isFileWithFileTypeWithoutWords( fileType, fileName, words ):
	"Determine if file has a given file type, but with does not contain a word in a list."
	fileName = os.path.basename( fileName )
	fileTypeDot = '.' + fileType
	if not getHasSuffix( fileName, fileTypeDot ):
		return False
	for word in words:
		if fileName.find( word ) >= 0:
			return False
	return True

def isProcedureDone( gcodeText, procedure ):
	"Determine if the procedure has been done on the gcode text."
	if gcodeText == '':
		return False
	lines = getTextLines( gcodeText )
	for line in lines:
		withoutBracketsEqualTabQuotes = getWithoutBracketsEqualTab( line ).replace( '"', '' )
		splitLine = getWithoutBracketsEqualTab( withoutBracketsEqualTabQuotes ).split()
		firstWord = getFirstWord( splitLine )
		if firstWord == 'procedureDone':
			if splitLine[ 1 ].find( procedure ) != - 1:
				return True
		elif firstWord == 'extrusionStart':
			return False
	return False

def isProcedureDoneOrFileIsEmpty( gcodeText, procedure ):
	"Determine if the procedure has been done on the gcode text or the file is empty."
	if gcodeText == '':
		return True
	return isProcedureDone( gcodeText, procedure )

def isThereAFirstWord( firstWord, lines, startIndex ):
	"Parse gcode until the first word if there is one."
	for lineIndex in xrange( startIndex, len( lines ) ):
		line = lines[ lineIndex ]
		splitLine = getSplitLineBeforeBracketSemicolon( line )
		if firstWord == getFirstWord( splitLine ):
			return True
	return False

def replaceWords( fileNames, original, replacement ):
	"Replace in files the original with the replacement."
	print( original + ' is being replaced with ' + replacement + ' in the following files:' )
	for fileName in fileNames:
		fileText = getFileText( fileName )
		if fileText != '':
			whereInText = fileText.find( original )
			if whereInText != - 1:
				print( fileName )
				print( whereInText )
				fileText = fileText.replace( original, replacement )
				writeFileText( fileName, fileText )

def writeFileMessageEnd( end, fileName, fileText, message ):
	"Write to a fileName with a suffix and print a message."
	suffixFileName = getUntilDot( fileName ) + end
	writeFileText( suffixFileName, fileText )
	print( message + getSummarizedFileName( suffixFileName ) )

def writeFileText( fileName, fileText, writeMode = 'w+' ):
	"Write a text to a file."
	try:
		file = open( fileName, writeMode )
		file.write( fileText )
		file.close()
	except IOError:
		print( 'The file ' + fileName + ' can not be written to.' )


class BoundingRectangle:
	"A class to get the corners of a gcode text."
	def getFromGcodeLines( self, lines, radius ):
		"Parse gcode text and get the minimum and maximum corners."
		self.cornerMaximum = complex( - 999999999.0, - 999999999.0 )
		self.cornerMinimum = complex( 999999999.0, 999999999.0 )
		self.oldLocation = None
		self.cornerRadius = complex( radius, radius )
		for line in lines:
			self.parseCorner( line )
		return self

	def isPointInside( self, point ):
		"Determine if the point is inside the bounding rectangle."
		return point.imag >= self.cornerMinimum.imag and point.imag <= self.cornerMaximum.imag and point.real >= self.cornerMinimum.real and point.real <= self.cornerMaximum.real

	def parseCorner( self, line ):
		"Parse a gcode line and use the location to update the bounding corners."
		splitLine = getSplitLineBeforeBracketSemicolon( line )
		firstWord = getFirstWord( splitLine )
		if firstWord == '(<boundaryPoint>':
			locationComplex = getLocationFromSplitLine( None, splitLine ).dropAxis( 2 )
			self.cornerMaximum = euclidean.getMaximum( self.cornerMaximum, locationComplex )
			self.cornerMinimum = euclidean.getMinimum( self.cornerMinimum, locationComplex )
		elif firstWord == 'G1':
			location = getLocationFromSplitLine( self.oldLocation, splitLine )
			locationComplex = location.dropAxis( 2 )
			self.cornerMaximum = euclidean.getMaximum( self.cornerMaximum, locationComplex + self.cornerRadius )
			self.cornerMinimum = euclidean.getMinimum( self.cornerMinimum, locationComplex - self.cornerRadius )
			self.oldLocation = location


class DistanceFeedRate:
	"A class to limit the z feed rate and round values."
	def __init__( self ):
		self.absoluteDistanceMode = True
		self.decimalPlacesCarried = 3
		self.extrusionDistanceFormat = ''
		self.maximumZDrillFeedRatePerSecond = None
		self.maximumZFeedRatePerSecond = None
		self.maximumZTravelFeedRatePerSecond = None
		self.oldAddedLocation = None
		self.output = cStringIO.StringIO()

	def addGcodeFromFeedRateThreadZ( self, feedRateMinute, thread, z ):
		"Add a thread to the output."
		if len( thread ) > 0:
			self.addGcodeMovementZWithFeedRate( feedRateMinute, thread[ 0 ], z )
		else:
			print( "zero length vertex positions array which was skipped over, this should never happen" )
		if len( thread ) < 2:
			print( "thread of only one point in addGcodeFromFeedRateThreadZ in gcodec, this should never happen" )
			print( thread )
			return
		self.addLine( "M101" ) # Turn extruder on.
		for point in thread[ 1 : ]:
			self.addGcodeMovementZWithFeedRate( feedRateMinute, point, z )
		self.addLine( "M103" ) # Turn extruder off.

	def addGcodeFromLoop( self, loop, z ):
		"Add the gcode loop."
		euclidean.addSurroundingLoopBeginning( self, loop, z )
		self.addPerimeterBlock( loop, z )
		self.addLine( '(</boundaryPerimeter>)' )
		self.addLine( '(</surroundingLoop>)' )

	def addGcodeFromThreadZ( self, thread, z ):
		"Add a thread to the output."
		if len( thread ) > 0:
			self.addGcodeMovementZ( thread[ 0 ], z )
		else:
			print( "zero length vertex positions array which was skipped over, this should never happen" )
		if len( thread ) < 2:
			print( "thread of only one point in addGcodeFromThreadZ in gcodec, this should never happen" )
			print( thread )
			return
		self.addLine( "M101" ) # Turn extruder on.
		for point in thread[ 1 : ]:
			self.addGcodeMovementZ( point, z )
		self.addLine( "M103" ) # Turn extruder off.

	def addGcodeMovementZ( self, point, z ):
		"Add a movement to the output."
		self.addLine( self.getLinearGcodeMovement( point, z ) )

	def addGcodeMovementZWithFeedRate( self, feedRateMinute, point, z ):
		"Add a movement to the output."
		self.addLine( self.getLinearGcodeMovementWithFeedRate( feedRateMinute, point, z ) )

	def addLine( self, line ):
		"Add a line of text and a newline to the output."
		if len( line ) <= 0:
			return
		splitLine = getSplitLineBeforeBracketSemicolon( line )
		firstWord = getFirstWord( splitLine )
		if firstWord == 'G90':
			self.absoluteDistanceMode = True
		elif firstWord == 'G91':
			self.absoluteDistanceMode = False
		elif firstWord == 'G1':
			feedRateMinute = getFeedRateMinute( None, splitLine )
			if self.absoluteDistanceMode:
				location = getLocationFromSplitLine( self.oldAddedLocation, splitLine )
				line = self.getLineWithZLimitedFeedRate( feedRateMinute, line, location, splitLine )
				self.oldAddedLocation = location
			else:
				if self.oldAddedLocation == None:
					print( 'Warning: There was no absolute location when the G91 command was parsed, so the absolute location will be set to the origin.' )
					self.oldAddedLocation = Vector3()
				self.oldAddedLocation += getLocationFromSplitLine( None, splitLine )
		elif firstWord == 'G92':
			self.oldAddedLocation = getLocationFromSplitLine( self.oldAddedLocation, splitLine )
		elif firstWord == 'M101':
			self.maximumZFeedRatePerSecond = self.maximumZDrillFeedRatePerSecond
		elif firstWord == 'M103':
			self.maximumZFeedRatePerSecond = self.maximumZTravelFeedRatePerSecond
		self.output.write( line + "\n" )

	def addLines( self, lines ):
		"Add lines of text to the output."
		for line in lines:
			self.addLine( line )

	def addLinesSetAbsoluteDistanceMode( self, lines ):
		"Add lines of text to the output."
		self.addLines( lines )
		self.absoluteDistanceMode = True

	def addPerimeterBlock( self, loop, z ):
		"Add the perimeter gcode block for the loop."
		if len( loop ) < 2:
			return
		if euclidean.isWiddershins( loop ): # Indicate that a perimeter is beginning.
			self.addLine( '(<perimeter> outer )' )
		else:
			self.addLine( '(<perimeter> inner )' )
		self.addGcodeFromThreadZ( loop + [ loop[ 0 ] ], z )
		self.addLine( '(</perimeter>)' ) # Indicate that a perimeter is beginning.

	def addTagBracketedLine( self, tagName, value ):
		"Add a begin tag, balue and end tag."
		self.addLine( self.getTagBracketedLine( tagName, value ) )

	def getBoundaryLine( self, location ):
		"Get boundary gcode line."
		return '(<boundaryPoint> X%s Y%s Z%s </boundaryPoint>)' % ( self.getRounded( location.x ), self.getRounded( location.y ), self.getRounded( location.z ) )

	def getFirstWordMovement( self, firstWord, location ):
		"Get the start of the arc line."
		return '%s X%s Y%s Z%s' % ( firstWord, self.getRounded( location.x ), self.getRounded( location.y ), self.getRounded( location.z ) )

	def getLinearGcodeMovement( self, point, z ):
		"Get a linear gcode movement."
		return "G1 X%s Y%s Z%s" % ( self.getRounded( point.real ), self.getRounded( point.imag ), self.getRounded( z ) )

	def getLinearGcodeMovementWithFeedRate( self, feedRateMinute, point, z ):
		"Get a z limited gcode movement."
		addedLocation = Vector3( point.real, point.imag, z )
		if addedLocation == self.oldAddedLocation:
			return ''
		linearGcodeMovement = self.getLinearGcodeMovement( point, z )
		if feedRateMinute == None:
			return linearGcodeMovement
		return linearGcodeMovement + ' F' + self.getRounded( feedRateMinute )

	def getLinearGcodeMovementWithZLimitedFeedRate( self, feedRateMinute, location ):
		"Get a z limited gcode movement."
		if location == self.oldAddedLocation:
			return ''
		distance = 0.0
		extrusionDistanceString = ''
		if self.oldAddedLocation != None:
			distance = abs( location - self.oldAddedLocation )
		linearGcodeMovement = self.getLinearGcodeMovement( location.dropAxis( 2 ), location.z )
		if feedRateMinute == None:
			return linearGcodeMovement
		if self.oldAddedLocation != None:
			deltaZ = abs( location.z - self.oldAddedLocation.z )
			feedRateMinute = self.getZLimitedFeedRate( deltaZ, distance, feedRateMinute )
		return linearGcodeMovement + ' F' + self.getRounded( feedRateMinute )

	def getLineWithFeedRate( self, feedRateMinute, line, splitLine ):
		"Get the line with a feed rate."
		roundedFeedRateString = 'F' + self.getRounded( feedRateMinute )
		indexOfF = indexOfStartingWithSecond( 'F', splitLine )
		if indexOfF < 0:
			return line + ' ' + roundedFeedRateString
		word = splitLine[ indexOfF ]
		return line.replace( word, roundedFeedRateString )

	def getLineWithX( self, line, splitLine, x ):
		"Get the line with an x."
		roundedXString = 'X' + self.getRounded( x )
		indexOfX = indexOfStartingWithSecond( 'X', splitLine )
		if indexOfX == - 1:
			return line + ' ' + roundedXString
		word = splitLine[ indexOfX ]
		return line.replace( word, roundedXString )

	def getLineWithY( self, line, splitLine, y ):
		"Get the line with a y."
		roundedYString = 'Y' + self.getRounded( y )
		indexOfY = indexOfStartingWithSecond( 'Y', splitLine )
		if indexOfY == - 1:
			return line + ' ' + roundedYString
		word = splitLine[ indexOfY ]
		return line.replace( word, roundedYString )

	def getLineWithZ( self, line, splitLine, z ):
		"Get the line with a z."
		roundedZString = 'Z' + self.getRounded( z )
		indexOfZ = indexOfStartingWithSecond( 'Z', splitLine )
		if indexOfZ == - 1:
			return line + ' ' + roundedZString
		word = splitLine[ indexOfZ ]
		return line.replace( word, roundedZString )

	def getLineWithZLimitedFeedRate( self, feedRateMinute, line, location, splitLine ):
		"Get a replaced limited gcode movement line."
		if location == self.oldAddedLocation:
			return ''
		if feedRateMinute == None:
			return line
		if self.oldAddedLocation != None:
			deltaZ = abs( location.z - self.oldAddedLocation.z )
			distance = abs( location - self.oldAddedLocation )
			feedRateMinute = self.getZLimitedFeedRate( deltaZ, distance, feedRateMinute )
		return self.getLineWithFeedRate( feedRateMinute, line, splitLine )

	def getRounded( self, number ):
		"Get number rounded to the number of carried decimal places as a string."
		return euclidean.getRoundedToDecimalPlacesString( self.decimalPlacesCarried, number )

	def getTagBracketedLine( self, tagName, value ):
		"Add a begin tag, balue and end tag."
		return '(<%s> %s </%s>)' % ( tagName, value, tagName )

	def getZLimitedFeedRate( self, deltaZ, distance, feedRateMinute ):
		"Get the z limited feed rate."
		if self.maximumZFeedRatePerSecond == None:
			return feedRateMinute
		zFeedRateSecond = feedRateMinute * deltaZ / distance / 60.0
		if zFeedRateSecond > self.maximumZFeedRatePerSecond:
			feedRateMinute *= self.maximumZFeedRatePerSecond / zFeedRateSecond
		return feedRateMinute

	def parseSplitLine( self, firstWord, splitLine ):
		"Parse gcode split line and store the parameters."
		firstWord = getWithoutBracketsEqualTab( firstWord )
		if firstWord == 'decimalPlacesCarried':
			self.decimalPlacesCarried = int( splitLine[ 1 ] )
		elif firstWord == 'maximumZDrillFeedRatePerSecond':
			self.maximumZDrillFeedRatePerSecond = float( splitLine[ 1 ] )
			self.maximumZFeedRatePerSecond = self.maximumZDrillFeedRatePerSecond
		elif firstWord == 'maximumZTravelFeedRatePerSecond':
			self.maximumZTravelFeedRatePerSecond = float( splitLine[ 1 ] )