tf.ahk

/*
Name          : TF: Textfile & String Library for AutoHotkey
Version       : 3.6
Documentation : https://github.com/hi5/TF
AHKScript.org : http://www.ahkscript.org/boards/viewtopic.php?f=6&t=576
AutoHotkey.com: http://www.autohotkey.com/forum/topic46195.html (Also for examples)
License       : see license.txt

Credits & History: See documentation at GH above.

Structure of most functions:

TF_...(Text, other parameters)
	{
	 ; get the basic data we need for further processing and returning the output: 
	 TF_GetData(OW, Text, FileName)
	 ; OW = 0 Copy inputfile 
	 ; OW = 1 Overwrite inputfile
	 ; OW = 2 Return variable
	 ; Text : either contents of file or the var that was passed on
	 ; FileName : Used in case OW is 0 or 1 (=file), not used for OW=2 (variable)

	 ; Creates a matchlist for use in Loop below
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; A_ThisFunc useful for debugging your scripts

	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			{
			...
			}
		 Else 
			{
			...
			}
		}
	 ; either copy or overwrite file or return variable
	 Return TF_ReturnOutPut(OW, OutPut, FileName, TrimTrailing, CreateNewFile) 
	 ; OW 0 or 1 = file
	 ; Output = new content of file to save or variable to return
	 ; FileName
	 ; TrimTrailing: because of the loops used most functions will add trailing newline, this will remove it by default
	 ; CreateNewFile: To create a file that doesn't exist this parameter is needed, only used in few functions
   }

*/

TF_CountLines(Text)
	{ 
 	 TF_GetData(OW, Text, FileName)	 
 	 StringReplace, Text, Text, `n, `n, UseErrorLevel
	 Return ErrorLevel + 1
	}

TF_ReadLines(Text, StartLine = 1, EndLine = 0, Trailing = 0)
	{
	 TF_GetData(OW, Text, FileName)	 
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			OutPut .= A_LoopField "`n"
		 Else if (A_Index => EndLine)
			Break
		}
	 OW = 2 ; make sure we return variable not process file
	 Return TF_ReturnOutPut(OW, OutPut, FileName, Trailing)
	}

TF_ReplaceInLines(Text, StartLine = 1, EndLine = 0, SearchText = "", ReplaceText = "")
	{
 	 TF_GetData(OW, Text, FileName)
	 IfNotInString, Text, %SearchText%
	 	Return Text ; SearchText not in TextFile so return and do nothing, we have to return Text in case of a variable otherwise it would empty the variable contents bug fix 3.3
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Loop, Parse, Text, `n, `r
	 	{
		 If A_Index in %TF_MatchList%
			{
			 StringReplace, LoopField, A_LoopField, %SearchText%, %ReplaceText%, All
			 OutPut .= LoopField "`n"
			}
		 Else
			OutPut .= A_LoopField "`n"
		}		
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_Replace(Text, SearchText, ReplaceText="")
	{
	 TF_GetData(OW, Text, FileName)
	 IfNotInString, Text, %SearchText%
	 	Return Text ; SearchText not in TextFile so return and do nothing, we have to return Text in case of a variable otherwise it would empty the variable contents bug fix 3.3
	 Loop
		{
		 StringReplace, Text, Text, %SearchText%, %ReplaceText%, All
		 if (ErrorLevel = 0) ; No more replacements needed.
			break
		}
	 Return TF_ReturnOutPut(OW, Text, FileName, 0)
	}

TF_RegExReplaceInLines(Text, StartLine = 1, EndLine = 0, NeedleRegEx = "", Replacement = "")
	{
	 options:="^[imsxADJUXPS]+\)" ; Hat tip to sinkfaze http://www.autohotkey.com/forum/viewtopic.php?t=60062
	 If RegExMatch(searchText,options,o)
		searchText := RegExReplace(searchText,options,(!InStr(o,"m") ? "m$0" : "$0"))
	 Else searchText := "m)" . searchText
	 TF_GetData(OW, Text, FileName)
		If (RegExMatch(Text, SearchText) < 1)
			Return Text ; SearchText not in TextFile so return and do nothing, we have to return Text in case of a variable otherwise it would empty the variable contents bug fix 3.3

	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			{
			 LoopField := RegExReplace(A_LoopField, NeedleRegEx, Replacement)
			 OutPut .= LoopField "`n"
			}
		 Else
			OutPut .= A_LoopField "`n"
		}
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_RegExReplace(Text, NeedleRegEx = "", Replacement = "")
	{
	 options:="^[imsxADJUXPS]+\)" ; Hat tip to sinkfaze http://www.autohotkey.com/forum/viewtopic.php?t=60062
	 if RegExMatch(searchText,options,o)
		searchText := RegExReplace(searchText,options,(!InStr(o,"m") ? "m$0" : "$0"))
	 else searchText := "m)" . searchText
	 TF_GetData(OW, Text, FileName)
		If (RegExMatch(Text, SearchText) < 1)
			Return Text ; SearchText not in TextFile so return and do nothing, we have to return Text in case of a variable otherwise it would empty the variable contents bug fix 3.3
	 Text := RegExReplace(Text, NeedleRegEx, Replacement)
	 Return TF_ReturnOutPut(OW, Text, FileName, 0)
	}

TF_RemoveLines(Text, StartLine = 1, EndLine = 0)
	{
	 TF_GetData(OW, Text, FileName)
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			Continue
		 Else
			OutPut .= A_LoopField "`n"
		}
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_RemoveBlankLines(Text, StartLine = 1, EndLine = 0)
	{
	 TF_GetData(OW, Text, FileName)
	 If (RegExMatch(Text, "[\S]+?\r?\n?") < 1)
	 	Return Text ; No empty lines so return and do nothing, we have to return Text in case of a variable otherwise it would empty the variable contents bug fix 3.3
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Loop, Parse, Text, `n, `r
		{ 
		 If A_Index in %TF_MatchList%
			OutPut .= (RegExMatch(A_LoopField,"[\S]+?\r?\n?")) ? A_LoopField "`n" :
		 Else
			OutPut .= A_LoopField "`n"
		}
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_RemoveDuplicateLines(Text, StartLine = 1, Endline = 0, Consecutive = 0, CaseSensitive = false)
	{
	 TF_GetData(OW, Text, FileName)
	 If (StartLine = "")
	 	StartLine = 1
	 If (Endline = 0 OR Endline = "")
	 	EndLine := TF_Count(Text, "`n") + 1
	 Loop, Parse, Text, `n, `r
		{
		 If (A_Index < StartLine)
			Section1 .= A_LoopField "`n"
		 If A_Index between %StartLine% and %Endline%
			{
			 If (Consecutive = 1)
				{
				 If (A_LoopField <> PreviousLine) ; method one for consecutive duplicate lines
					 Section2 .= A_LoopField "`n"
				 PreviousLine:=A_LoopField
				} 
			 Else
				{
				 If !(InStr(SearchForSection2,"__bol__" . A_LoopField . "__eol__",CaseSensitive)) ; not found
				 	{
				 	 SearchForSection2 .= "__bol__" A_LoopField "__eol__" ; this makes it unique otherwise it could be a partial match
					 Section2 .= A_LoopField "`n"
				 	}
				}	 
			}
		 If (A_Index > EndLine)
			Section3 .= A_LoopField "`n"
		}
	 Output .= Section1 Section2 Section3
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_InsertLine(Text, StartLine = 1, Endline = 0, InsertText = "")
	{
	 TF_GetData(OW, Text, FileName)
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			Output .= InsertText "`n" A_LoopField "`n"
		 Else 
			Output .= A_LoopField "`n"
		}
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_ReplaceLine(Text, StartLine = 1, Endline = 0, ReplaceText = "")
	{
	 TF_GetData(OW, Text, FileName)
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			Output .= ReplaceText "`n" 
		 Else 
			Output .= A_LoopField "`n"
		}
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_InsertPrefix(Text, StartLine = 1, EndLine = 0, InsertText = "")
	{
	 TF_GetData(OW, Text, FileName)
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			OutPut .= InsertText A_LoopField "`n"
		 Else
			OutPut .= A_LoopField "`n"
		}
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_InsertSuffix(Text, StartLine = 1, EndLine = 0 , InsertText = "")
	{
	 TF_GetData(OW, Text, FileName)
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			OutPut .= A_LoopField InsertText "`n"
		 Else
			OutPut .= A_LoopField "`n"
		}
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_TrimLeft(Text, StartLine = 1, EndLine = 0, Count = 1)
	{
	 TF_GetData(OW, Text, FileName)
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			{
			 StringTrimLeft, StrOutPut, A_LoopField, %Count%
			 OutPut .= StrOutPut "`n"
			}
		 Else
			OutPut .= A_LoopField "`n"
		}
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_TrimRight(Text, StartLine = 1, EndLine = 0, Count = 1)
	{
	 TF_GetData(OW, Text, FileName)
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			{
			 StringTrimRight, StrOutPut, A_LoopField, %Count%
			 OutPut .= StrOutPut "`n"
			}
		 Else
			OutPut .= A_LoopField "`n"
		}
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_AlignLeft(Text, StartLine = 1, EndLine = 0, Columns = 80, Padding = 0)
	{
	 Trim:=A_AutoTrim ; store trim settings
	 AutoTrim, On ; make sure AutoTrim is on
	 TF_GetData(OW, Text, FileName)
	 If (Endline = 0 OR Endline = "")
		EndLine := TF_Count(Text, "`n") + 1
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			{
			 LoopField = %A_LoopField% ; Make use of AutoTrim, should be faster then a RegExReplace. Trims leading and trailing spaces!
			 SpaceNum := Columns-StrLen(LoopField)-1 
			 If (SpaceNum > 0) and (Padding = 1) ; requires padding + keep padding
				{
				 Left:=TF_SetWidth(LoopField,Columns, 0) ; align left
				 OutPut .= Left "`n"
				}
			 Else 
				OutPut .= LoopField "`n"
			}
		 Else
		 	OutPut .= A_LoopField "`n"
		}
	 AutoTrim, %Trim%	; restore original Trim
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_AlignCenter(Text, StartLine = 1, EndLine = 0, Columns = 80, Padding = 0)
	{
	 Trim:=A_AutoTrim ; store trim settings
	 AutoTrim, On ; make sure AutoTrim is on
	 TF_GetData(OW, Text, FileName)
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			{
			 LoopField = %A_LoopField% ; Make use of AutoTrim, should be faster then a RegExReplace
			 SpaceNum := (Columns-StrLen(LoopField)-1)/2
			 If (Padding = 1) and (LoopField = "") ; skip empty lines, do not fill with spaces
				{
				 OutPut .= "`n"
				 Continue
				}
			 If (StrLen(LoopField) >= Columns)
				{
				 OutPut .= LoopField "`n" ; add as is 	
				 Continue
				}
			 Centered:=TF_SetWidth(LoopField,Columns, 1) ; align center using set width
			 OutPut .= Centered "`n"
			}
		 Else
			OutPut .= A_LoopField "`n"
		}
	 AutoTrim, %Trim%	; restore original Trim
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_AlignRight(Text, StartLine = 1, EndLine = 0, Columns = 80, Skip = 0)
	{
	 Trim:=A_AutoTrim ; store trim settings
	 AutoTrim, On ; make sure AutoTrim is on
	 TF_GetData(OW, Text, FileName)
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			{
			 LoopField = %A_LoopField% ; Make use of AutoTrim, should be faster then a RegExReplace
			 If (Skip = 1) and (LoopField = "") ; skip empty lines, do not fill with spaces
				{
				 OutPut .= "`n"
				 Continue
				}
			 If (StrLen(LoopField) >= Columns) 
				{
				 OutPut .= LoopField "`n" ; add as is 	
				 Continue
				}
			 Right:=TF_SetWidth(LoopField,Columns, 2) ; align right using set width
			 OutPut .= Right "`n"
			}
		 Else
			OutPut .= A_LoopField "`n"
		}
	 AutoTrim, %Trim%	; restore original Trim
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

; Based on: CONCATenate text files, ftp://garbo.uwasa.fi/pc/ts/tsfltc22.zip
TF_ConCat(FirstTextFile, SecondTextFile, OutputFile = "", Blanks = 0, FirstPadMargin = 0, SecondPadMargin = 0)
	{
	 If (Blanks > 0)
		Loop, %Blanks%
			InsertBlanks .= A_Space
	 If (FirstPadMargin > 0)
		Loop, %FirstPadMargin%
			PaddingFile1 .= A_Space
	 If (SecondPadMargin > 0)
		Loop, %SecondPadMargin%
	 		PaddingFile2 .= A_Space
	 Text:=FirstTextFile		
	 TF_GetData(OW, Text, FileName)
	 StringSplit, Str1Lines, Text, `n, `r
	 Text:=SecondTextFile
	 TF_GetData(OW, Text, FileName)
	 StringSplit, Str2Lines, Text, `n, `r
	 Text= ; clear mem

	 ; first we need to determine the file with the most lines for our loop
	 If (Str1Lines0 > Str2Lines0)
		MaxLoop:=Str1Lines0
	 Else
		MaxLoop:=Str2Lines0
	 Loop, %MaxLoop%
		{
		 Section1:=Str1Lines%A_Index%
		 Section2:=Str2Lines%A_Index%
		 OutPut .= Section1 PaddingFile1 InsertBlanks Section2 PaddingFile2 "`n"
		 Section1= ; otherwise it will remember the last line from the shortest file or var
		 Section2=
		}
	 OW=1 ; it is probably 0 so in that case it would create _copy, so set it to 1
	 If (OutPutFile = "") ; if OutPutFile is empty return as variable
		OW=2
	 Return TF_ReturnOutPut(OW, OutPut, OutputFile, 1, 1)
	}

TF_LineNumber(Text, Leading = 0, Restart = 0, Char = 0) ; HT ribbet.1
	{
	 global t
	 TF_GetData(OW, Text, FileName)
	 Lines:=TF_Count(Text, "`n") + 1
	 Padding:=StrLen(Lines)
	 If (Leading = 0) and (Char = 0)
		Char := A_Space
	 Loop, %Padding%
		PadLines .= Char
	 Loop, Parse, Text, `n, `r
		{
		 If Restart = 0
			MaxNo = %A_Index%
		 Else
			{
			 MaxNo++
			 If MaxNo > %Restart%
				MaxNo = 1
			}
		 LineNumber:= MaxNo
		 If (Leading = 1)
			{
			 LineNumber := Padlines LineNumber ; add padding
			 StringRight, LineNumber, LineNumber, StrLen(Lines) ; remove excess padding
			}
		 If (Leading = 0)
			{
			 LineNumber := LineNumber Padlines ; add padding
			 StringLeft, LineNumber, LineNumber, StrLen(Lines) ; remove excess padding
			} 
		 OutPut .= LineNumber A_Space A_LoopField "`n"
		}
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

; skip = 1, skip shorter lines (e.g. lines shorter startcolumn position)
; modified in TF 3.4, fixed in 3.5
TF_ColGet(Text, StartLine = 1, EndLine = 0, StartColumn = 1, EndColumn = 1, Skip = 0)
	{ 
	 TF_GetData(OW, Text, FileName)
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 If (StartColumn < 0)
	 	{
		 StartColumn++
		 Loop, Parse, Text, `n, `r ; parsing file/var
			{
			 If A_Index in %TF_MatchList% 
				{
				 output .= SubStr(A_LoopField,StartColumn) "`n"
				}
			 else
				 output .= A_LoopField "`n"
			}
	 	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	 	}
	 if RegExMatch(StartColumn, ",|\+|-") 
		{
		 StartColumn:=_MakeMatchList(Text, StartColumn, 1, 1)
		 Loop, Parse, Text, `n, `r ; parsing file/var
			{
			 If A_Index in %TF_MatchList% 
				{
				 loop, parse, A_LoopField ; parsing LINE char by char
					{
					 If A_Index in %StartColumn% ; if col in index get char
						output .= A_LoopField
					}
				 output .= "`n"
				}
			 else
				 output .= A_LoopField "`n"
			}
		 output .= A_LoopField "`n"
		}
	 else
		{
		 EndColumn:=(EndColumn+1)-StartColumn
		 Loop, Parse, Text, `n, `r
			{
			 If A_Index in %TF_MatchList%
				{
				 StringMid, Section, A_LoopField, StartColumn, EndColumn
				 If (Skip = 1) and (StrLen(A_LoopField) < StartColumn)
					Continue
				 OutPut .= Section "`n" 
				}
			}
		}	
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

; Based on: COLPUT.EXE & CUT.EXE, ftp://garbo.uwasa.fi/pc/ts/tsfltc22.zip
; modified in TF 3.4
TF_ColPut(Text, Startline = 1, EndLine = 0, StartColumn = 1, InsertText = "", Skip = 0)
	{ 
	 TF_GetData(OW, Text, FileName)
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 If RegExMatch(StartColumn, ",|\+") 
		{
		 StartColumn:=_MakeMatchList(Text, StartColumn, 0, 1)
		 Loop, Parse, Text, `n, `r ; parsing file/var
			{
			 If A_Index in %TF_MatchList% 
				{
				 loop, parse, A_LoopField ; parsing LINE char by char
					{
					 If A_Index in %StartColumn% ; if col in index insert text
						output .= InsertText A_LoopField
					 Else
						output .= A_LoopField 
					}
				 output .= "`n"
				}
			 else
				 output .= A_LoopField "`n"
			}
		 output .= A_LoopField "`n"
		}
	 else
		{
		 StartColumn--
		 Loop, Parse, Text, `n, `r
			{
			 If A_Index in %TF_MatchList%
				{
				 If (StartColumn > 0)
					{
					 StringLeft, Section1, A_LoopField, StartColumn
					 StringMid, Section2, A_LoopField, StartColumn+1
					 If (Skip = 1) and (StrLen(A_LoopField) < StartColumn)
						OutPut .= Section1 Section2 "`n"
					}
				 Else
					{
					 Section1:=SubStr(A_LoopField, 1, StrLen(A_LoopField) + StartColumn + 1)
					 Section2:=SubStr(A_LoopField, StrLen(A_LoopField) + StartColumn + 2)
					 If (Skip = 1) and (A_LoopField = "")
						OutPut .= Section1 Section2 "`n"
					}
				 OutPut .= Section1 InsertText Section2 "`n"	
				}
			 Else
				OutPut .= A_LoopField "`n"
			}
		}
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

; modified TF 3.4
TF_ColCut(Text, StartLine = 1, EndLine = 0, StartColumn = 1, EndColumn = 1)
	{
	 TF_GetData(OW, Text, FileName)
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 If RegExMatch(StartColumn, ",|\+|-") 
		{
		 StartColumn:=_MakeMatchList(Text, StartColumn, EndColumn, 1)
		 Loop, Parse, Text, `n, `r ; parsing file/var
			{
			 If A_Index in %TF_MatchList% 
				{
				 loop, parse, A_LoopField ; parsing LINE char by char
					{
					 If A_Index not in %StartColumn% ; if col not in index get char
						output .= A_LoopField
					}
				 output .= "`n"
				}
			 else
				 output .= A_LoopField "`n"
			}
		 output .= A_LoopField "`n"
		}
	 else
		{
		 StartColumn--
		 EndColumn++
		 Loop, Parse, Text, `n, `r
			{
			 If A_Index in %TF_MatchList%
				{
				 StringLeft, Section1, A_LoopField, StartColumn
				 StringMid, Section2, A_LoopField, EndColumn
				 OutPut .= Section1 Section2 "`n"
				}
			 Else
				OutPut .= A_LoopField "`n"
			}
		}	
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_ReverseLines(Text, StartLine = 1, EndLine = 0)
	{
	 TF_GetData(OW, Text, FileName)
	 StringSplit, Line, Text, `n, `r ; line0 is number of lines
	 If (EndLine = 0 OR EndLine = "")
		EndLine:=Line0
	 If (EndLine > Line0)
		EndLine:=Line0
	 CountDown:=EndLine+1
	 Loop, Parse, Text, `n, `r
		{
		 If (A_Index < StartLine)
			Output1 .= A_LoopField "`n" ; section1
	 	 If A_Index between %StartLine% and %Endline%
			{
			 CountDown--
			 Output2 .= Line%CountDown% "`n" section2
			}
		 If (A_Index > EndLine)
			 Output3 .= A_LoopField "`n"
		}
	 OutPut.= Output1 Output2 Output3
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

;TF_SplitFileByLines
;example:
;TF_SplitFileByLines("TestFile.txt", "4", "sfile_", "txt", "1") ; split file every 3 lines
; InFile = 0 skip line e.g. do not include the actual line in any of the output files
; InFile = 1 include line IN current file
; InFile = 2 include line IN next file
TF_SplitFileByLines(Text, SplitAt, Prefix = "file", Extension = "txt", InFile = 1)
	{
	 LineCounter=1
	 FileCounter=1
	 Where:=SplitAt
	 Method=1 
	 ; 1 = default, splitat every X lines, 
	 ; 2 = splitat: - rotating if applicable 
	 ; 3 = splitat: specific lines comma separated
	 TF_GetData(OW, Text, FileName)
	 
	 IfInString, SplitAt, `- ; method 2
		{
		 StringSplit, Split, SplitAt, `-
		 Part=1
		 Where:=Split%Part%
		 Method=2
		} 
	 IfInString, SplitAt, `, ; method 3
		{
		 StringSplit, Split, SplitAt, `,
		 Part=1
		 Where:=Split%Part%
		 Method=3
		} 
	 Loop, Parse, Text, `n, `r
		{
		 OutPut .= A_LoopField "`n"
		 If (LineCounter = Where)
			{
			 If (InFile = 0)
				{
				 StringReplace, CheckOutput, PreviousOutput, `n, , All
				 StringReplace, CheckOutput, CheckOutput, `r, , All
				 If (CheckOutput <> "") and (OW <> 2) ; skip empty files
					TF_ReturnOutPut(1, PreviousOutput, Prefix FileCounter "." Extension, 0, 1) 
				 If (CheckOutput <> "") and (OW = 2) ; skip empty files
					 TF_SetGlobal(Prefix FileCounter,PreviousOutput)
		 		 Output:=
				}
			 If (InFile = 1)
				{
				 StringReplace, CheckOutput, Output, `n, , All
				 StringReplace, CheckOutput, CheckOutput, `r, , All
				 If (CheckOutput <> "") and (OW <> 2) ; skip empty files
				 	 TF_ReturnOutPut(1, Output, Prefix FileCounter "." Extension, 0, 1) 
				 If (CheckOutput <> "") and (OW = 2) ; skip empty files
				 	 TF_SetGlobal(Prefix FileCounter,Output)
				 Output:=
				}
			 If (InFile = 2)
				{
				 OutPut := PreviousOutput
				 StringReplace, CheckOutput, Output, `n, , All
				 StringReplace, CheckOutput, CheckOutput, `r, , All
				 If (CheckOutput <> "") and (OW <> 2) ; skip empty files
					 TF_ReturnOutPut(1, Output, Prefix FileCounter "." Extension, 0, 1) 
				 If (CheckOutput <> "") and (OW = 2) ; output to array
				 	 TF_SetGlobal(Prefix FileCounter,Output)
				 OutPut := A_LoopField "`n"
				}
			 If (Method <> 3)			
				 LineCounter=0 ; reset
			 FileCounter++ ; next file
			 Part++
			 If (Method = 2) ; 2 = splitat: - rotating if applicable 
			 	{
			 If (Part > Split0)
					{
					 Part=1
					}
				 Where:=Split%Part%
				}
			 If (Method = 3) ; 3 = splitat: specific lines comma separated
				{
				 If (Part > Split0)
					Where:=Split%Split0%
				 Else
					Where:=Split%Part%
				}
			}
		 LineCounter++
		 PreviousOutput:=Output
		 PreviousLine:=A_LoopField
		}
	 StringReplace, CheckOutput, Output, `n, , All
	 StringReplace, CheckOutput, CheckOutput, `r, , All
	 If (CheckOutPut <> "") and (OW <> 2) ; skip empty files
		TF_ReturnOutPut(1, Output, Prefix FileCounter "." Extension, 0, 1) 
	 If (CheckOutput <> "") and (OW = 2) ; output to array
		{
		 TF_SetGlobal(Prefix FileCounter,Output)
		 TF_SetGlobal(Prefix . "0" , FileCounter)
		} 
	}

; TF_SplitFileByText("TestFile.txt", "button", "sfile_", "txt") ; split file at every line with button in it, can be regexp
; InFile = 0 skip line e.g. do not include the actual line in any of the output files
; InFile = 1 include line IN current file
; InFile = 2 include line IN next file
TF_SplitFileByText(Text, SplitAt, Prefix = "file", Extension = "txt", InFile = 1)
	{
	 LineCounter=1
	 FileCounter=1
	 TF_GetData(OW, Text, FileName)
	 SplitPath, TextFile,, Dir
	 Loop, Parse, Text, `n, `r
		{
		 OutPut .= A_LoopField "`n"
		 FoundPos:=RegExMatch(A_LoopField, SplitAt)
		 If (FoundPos > 0)
			{
			 If (InFile = 0)
				{
				 StringReplace, CheckOutput, PreviousOutput, `n, , All
				 StringReplace, CheckOutput, CheckOutput, `r, , All
				 If (CheckOutput <> "") and (OW <> 2) ; skip empty files
					TF_ReturnOutPut(1, PreviousOutput, Prefix FileCounter "." Extension, 0, 1) 
				 If (CheckOutput <> "") and (OW = 2) ; output to array
					TF_SetGlobal(Prefix FileCounter,PreviousOutput)
				 Output:=
				}
			 If (InFile = 1)
				{
				 StringReplace, CheckOutput, Output, `n, , All
				 StringReplace, CheckOutput, CheckOutput, `r, , All
				 If (CheckOutput <> "") and (OW <> 2) ; skip empty files
					TF_ReturnOutPut(1, Output, Prefix FileCounter "." Extension, 0, 1) 
				 If (CheckOutput <> "") and (OW = 2) ; output to array
					TF_SetGlobal(Prefix FileCounter,Output)
				 Output:=
				}
			 If (InFile = 2)
				{
				 OutPut := PreviousOutput
				 StringReplace, CheckOutput, Output, `n, , All
				 StringReplace, CheckOutput, CheckOutput, `r, , All
				 If (CheckOutput <> "") and (OW <> 2) ; skip empty files
					TF_ReturnOutPut(1, Output, Prefix FileCounter "." Extension, 0, 1) 
				 If (CheckOutput <> "") and (OW = 2) ; output to array
					TF_SetGlobal(Prefix FileCounter,Output)
				 OutPut := A_LoopField "`n"
				}
		 	 LineCounter=0 ; reset
		 	 FileCounter++ ; next file
			}
		 LineCounter++
		 PreviousOutput:=Output
		 PreviousLine:=A_LoopField
		}
	 StringReplace, CheckOutput, Output, `n, , All
	 StringReplace, CheckOutput, CheckOutput, `r, , All
	 If (CheckOutPut <> "") and (OW <> 2) ; skip empty files
		TF_ReturnOutPut(1, Output, Prefix FileCounter "." Extension, 0, 1) 
	 If (CheckOutput <> "") and (OW = 2) ; output to array
		{
		 TF_SetGlobal(Prefix FileCounter,Output)
		 TF_SetGlobal(Prefix . "0" , FileCounter)
		} 
	}

TF_Find(Text, StartLine = 1, EndLine = 0, SearchText = "", ReturnFirst = 1, ReturnText = 0)
	{
	 options:="^[imsxADJUXPS]+\)"
	 if RegExMatch(searchText,options,o)
		searchText:=RegExReplace(searchText,options,(!InStr(o,"m") ? "m$0(*ANYCRLF)" : "$0"))
	 else searchText:="m)(*ANYCRLF)" searchText
	 options:="^[imsxADJUXPS]+\)" ; Hat tip to sinkfaze, see http://www.autohotkey.com/forum/viewtopic.php?t=60062
	 if RegExMatch(searchText,options,o)
		searchText := RegExReplace(searchText,options,(!InStr(o,"m") ? "m$0" : "$0"))
	 else searchText := "m)" . searchText

	 TF_GetData(OW, Text, FileName)
	 If (RegExMatch(Text, SearchText) < 1)
		Return "0" ; SearchText not in file or error, so do nothing

	 TF_GetData(OW, Text, FileName)
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			{
			 If (RegExMatch(A_LoopField, SearchText) > 0)
				{
				 If (ReturnText = 0)
					Lines .= A_Index "," ; line number
				 Else If (ReturnText = 1)
					Lines .= A_LoopField "`n" ; text of line 
				 Else If (ReturnText = 2)
					Lines .= A_Index ": " A_LoopField "`n" ; add line number
				 If (ReturnFirst = 1) ; only return first occurrence
					Break
				}	
			}	
		}
	 If (Lines <> "")
		StringTrimRight, Lines, Lines, 1 ; trim trailing , or `n
	 Else
		Lines = 0 ; make sure we return 0
	 Return Lines
	}

TF_Prepend(File1, File2)
	{
FileList=
(
%File1%
%File2%
)
TF_Merge(FileList,"`n", "!" . File2)
Return
	}

TF_Append(File1, File2)
	{
FileList=
(
%File2%
%File1%
)
TF_Merge(FileList,"`n", "!" . File2)
Return
	}

; For TF_Merge You will need to create a Filelist variable, one file per line,
; to pass on to the function:
; FileList=
; (
; c:\file1.txt
; c:\file2.txt
; )
; use Loop (files & folders) to create one quickly if you want to merge all TXT files for example
;
; Loop, c:\*.txt
;   FileList .= A_LoopFileFullPath "`n"
;
; By default, a new line is used as a separator between two text files
; !merged.txt deletes target file before starting to merge files
TF_Merge(FileList, Separator = "`n", FileName = "merged.txt") 
	{
	 OW=0
	 Loop, Parse, FileList, `n, `r
		{
		 Append2File= ; Just make sure it is empty
		 IfExist, %A_LoopField%
			{
			 FileRead, Append2File, %A_LoopField%
			 If not ErrorLevel ; Successfully loaded
				Output .= Append2File Separator
			}
		}

	 If (SubStr(FileName,1,1)="!") ; check if we want to delete the target file before we start
		{
		 FileName:=SubStr(FileName,2)
		 OW=1	 
		}
	 Return TF_ReturnOutPut(OW, OutPut, FileName, 0, 1)
	}

TF_Wrap(Text, Columns = 80, AllowBreak = 0, StartLine = 1, EndLine = 0)
	{
	 TF_GetData(OW, Text, FileName)
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 If (AllowBreak = 1)
		Break=
	 Else
		Break=[ \r?\n]
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			{
			 If (StrLen(A_LoopField) > Columns)
				{
				 LoopField := A_LoopField " " ; just seems to work better by adding a space
				 OutPut .= RegExReplace(LoopField, "(.{1," . Columns . "})" . Break , "$1`n")
				}
			 Else
				OutPut .= A_LoopField "`n"
			}	
		 Else
			 OutPut .= A_LoopField "`n"
		}		
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_WhiteSpace(Text, RemoveLeading = 1, RemoveTrailing = 1, StartLine = 1, EndLine = 0) {
	 TF_GetData(OW, Text, FileName)
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc) ; create MatchList
	 Trim:=A_AutoTrim ; store trim settings
	 AutoTrim, On ; make sure AutoTrim is on
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			{
			 If (RemoveLeading = 1) AND (RemoveTrailing = 1)
			 	{
				 LoopField = %A_LoopField%
				 Output .= LoopField "`n"
					 Continue
				}
			 If (RemoveLeading = 1) AND (RemoveTrailing = 0)
				{
				 LoopField := A_LoopField . "."
				 LoopField = %LoopField%
				 StringTrimRight, LoopField, LoopField, 1
				 Output .= LoopField "`n"
					 Continue
				}
			 If (RemoveLeading = 0) AND (RemoveTrailing = 1)
				{
				 LoopField := "." A_LoopField
				 LoopField = %LoopField%
				 StringTrimLeft, LoopField, LoopField, 1
				 Output .= LoopField "`n"
					 Continue
				}
			 If (RemoveLeading = 0) AND (RemoveTrailing = 0)
				{
				 Output .= A_LoopField "`n"
					 Continue
				}
			}
		 Else
			Output .= A_LoopField "`n"
		}
	AutoTrim, %Trim%	; restore original Trim
	Return TF_ReturnOutPut(OW, OutPut, FileName)
}

; Delete lines from file1 in file2 (using StringReplace)
; Partialmatch = 2 added in 3.4
TF_Substract(File1, File2, PartialMatch = 0) {
	Text:=File1
	TF_GetData(OW, Text, FileName)
	Str1:=Text
	Text:=File2
	TF_GetData(OW, Text, FileName)
		OutPut:=Text
	If (OW = 2)
		File1= ; free mem in case of var/text
	OutPut .= "`n" ; just to make sure the StringReplace will work

	If (PartialMatch = 2)
		{
		 Loop, Parse, Str1, `n, `r
			{
			 IfInString, Output, %A_LoopField%
			 	{
				 Output:= RegExReplace(Output, "im)^.*" . A_LoopField . ".*\r?\n?", replace)
			 	}	
			}
		}
	Else If (PartialMatch = 1) ; allow paRTIal match
		{
		 Loop, Parse, Str1, `n, `r
		 	StringReplace, Output, Output, %A_LoopField%, , All ; remove lines from file1 in file2
		}
	Else If (PartialMatch = 0)
		{ 
		 search:="m)^(.*)$"
		 replace=__bol__$1__eol__
		 Output:=RegExReplace(Output, search, replace)
		 StringReplace, Output, Output, `n__eol__,__eol__ , All ; strange fix but seems to be needed.
		 Loop, Parse, Str1, `n, `r
			StringReplace, Output, Output, __bol__%A_LoopField%__eol__, , All ; remove lines from file1 in file2
		}	
	If (PartialMatch = 0)
		{
		 StringReplace, Output, Output, __bol__, , All
		 StringReplace, Output, Output, __eol__, , All
		}
		
	; Remove all blank lines from the text in a variable:
	Loop
		{
		 StringReplace, Output, Output, `r`n`r`n, `r`n, UseErrorLevel
		 if (ErrorLevel = 0) or (ErrorLevel = 1) ; No more replacements needed.
			break
		}	
	Return TF_ReturnOutPut(OW, OutPut, FileName, 0)
}

; Similar to "BK Replace EM" RangeReplace
TF_RangeReplace(Text, SearchTextBegin, SearchTextEnd, ReplaceText = "", CaseSensitive = "False", KeepBegin = 0, KeepEnd = 0)
	{
	 TF_GetData(OW, Text, FileName)
	 IfNotInString, Text, %SearchText%
		Return Text ; SearchTextBegin not in TextFile so return and do nothing, we have to return Text in case of a variable otherwise it would empty the variable contents bug fix 3.3
	 Start = 0
	 End = 0
	 If (KeepBegin = 1)
	 	 KeepBegin:=SearchTextBegin
	 Else
		 KeepBegin=
	 If (KeepEnd = 1)
	 	 KeepEnd:= SearchTextEnd
	 Else
		 KeepEnd=
	 If (SearchTextBegin = "")
	 	 Start=1
	 If (SearchTextEnd = "")
	 	 End=2
	
	 Loop, Parse, Text, `n, `r
		{
		 If (End = 1) ; end has been found already, replacement made simply continue to add all lines
			{
			 Output .= A_LoopField "`n"
				 Continue
			}
		 If (Start = 0) ; start hasn't been found
			{
			 If (InStr(A_LoopField,SearchTextBegin,CaseSensitive)) ; start has been found
				{
				 Start = 1
				 KeepSection := SubStr(A_LoopField, 1, InStr(A_LoopField, SearchTextBegin)-1) 
				 EndSection := SubStr(A_LoopField, InStr(A_LoopField, SearchTextBegin)-1) 
				 ; check if SearchEndText is in second part of line
				 If (InStr(EndSection,SearchTextEnd,CaseSensitive)) ; end found
					{
					 EndSection := ReplaceText KeepEnd SubStr(EndSection, InStr(EndSection, SearchTextEnd) + StrLen(SearchTextEnd) ) "`n"
					 If (End <> 2)	
					 	End=1
					 If (End = 2)	
					 	EndSection=
					}
				 Else
					EndSection=
				 Output .= KeepSection KeepBegin EndSection
				 Continue
				}
			 Else	
				Output .= A_LoopField "`n" ; if not found yet simply add
				}
		 If (Start = 1) and (End <> 2) ; start has been found, now look for end if end isn't an empty string
			{
			 If (InStr(A_LoopField,SearchTextEnd,CaseSensitive)) ; end found
				{
				 End = 1
				 Output .= ReplaceText KeepEnd SubStr(A_LoopField, InStr(A_LoopField, SearchTextEnd) + StrLen(SearchTextEnd) ) "`n"
				}
			}
		} 
	 If (End = 2)	
	 	Output .= ReplaceText
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

; Create file of X lines and Y columns, fill with space or other character(s)
TF_MakeFile(Text, Lines = 1, Columns = 1, Fill = " ")
	{
	 OW=1
	 If (Text = "") ; if OutPutFile is empty return as variable
		OW=2
	 Loop, % Columns
		Cols .= Fill
	 Loop, % Lines
		Output .= Cols "`n"
	 Return TF_ReturnOutPut(OW, OutPut, Text, 1, 1)	
	}

; Convert tabs to spaces, shorthand for TF_ReplaceInLines
TF_Tab2Spaces(Text, TabStop = 4, StartLine = 1, EndLine =0)
	{
	Loop, % TabStop
		Replace .= A_Space
	Return TF_ReplaceInLines(Text, StartLine, EndLine, A_Tab, Replace)
	}

; Convert spaces to tabs, shorthand for TF_ReplaceInLines
TF_Spaces2Tab(Text, TabStop = 4, StartLine = 1, EndLine =0)
	{
	Loop, % TabStop
		Replace .= A_Space
	Return TF_ReplaceInLines(Text, StartLine, EndLine, Replace, A_Tab)
	}

; Sort (section of) a text file
TF_Sort(Text, SortOptions = "", StartLine = 1, EndLine = 0) ; use the SORT options http://www.autohotkey.com/docs/commands/Sort.htm
	{
	 TF_GetData(OW, Text, FileName)
	 If StartLine contains -,+,`, ; no sections, incremental or multiple line input
		Return
	 If (StartLine = 1) and (Endline = 0) ; process entire file
		{
		 Output:=Text
		 Sort, Output, %SortOptions%
		}
	 Else
		{
		 Output := TF_ReadLines(Text, 1, StartLine-1) ; get first section
		 ToSort := TF_ReadLines(Text, StartLine, EndLine) ; get section to sort
		 Sort, ToSort, %SortOptions%
		 OutPut .= ToSort
		 OutPut .= TF_ReadLines(Text, EndLine+1) ; append last section
		} 
	 Return TF_ReturnOutPut(OW, OutPut, FileName)
	}

TF_Tail(Text, Lines = 1, RemoveTrailing = 0, ReturnEmpty = 1)
	{
	 TF_GetData(OW, Text, FileName)
	 Neg = 0
	 If (Lines < 0)
		{
		 Neg=1
		 Lines:= Lines * -1
		}
	 If (ReturnEmpty = 0) ; remove blank lines first so we can't return any blank lines anyway
		{
		 Loop, Parse, Text, `n, `r
			OutPut .= (RegExMatch(A_LoopField,"[\S]+?\r?\n?")) ? A_LoopField "`n" :
		 StringTrimRight, OutPut, OutPut, 1 ; remove trailing `n added by loop above
		 Text:=OutPut
		 OutPut=
	}
	 If (Neg = 1) ; get only one line!
		{ 
		 Lines++
		 Output:=Text
		 StringGetPos, Pos, Output, `n, R%Lines% ; These next two Lines by Tuncay see
		 StringTrimLeft, Output, Output, % ++Pos ; http://www.autoHotkey.com/forum/viewtopic.php?p=262375#262375
		 StringGetPos, Pos, Output, `n
		 StringLeft, Output, Output, % Pos
		 Output .= "`n"
		}
	 Else
		{
		 Output:=Text
		 StringGetPos, Pos, Output, `n, R%Lines% ; These next two Lines by Tuncay see
		 StringTrimLeft, Output, Output, % ++Pos ; http://www.autoHotkey.com/forum/viewtopic.php?p=262375#262375
		 Output .= "`n"
		}
	 OW = 2 ; make sure we return variable not process file
	 Return TF_ReturnOutPut(OW, OutPut, FileName, RemoveTrailing)
	}

TF_Count(String, Char)
	{
	StringReplace, String, String, %Char%,, UseErrorLevel
	Return ErrorLevel
	}

TF_Save(Text, FileName, OverWrite = 1) { ; HugoV write file
	Return TF_ReturnOutPut(OverWrite, Text, FileName, 0, 1)
	}

TF(TextFile, CreateGlobalVar = "T") { ; read contents of file in output and %output% as global var ...  http://www.autohotkey.com/forum/viewtopic.php?p=313120#313120
	 global
	 FileRead, %CreateGlobalVar%, %TextFile%
	 Return, (%CreateGlobalVar%)
	}

; TF_Join
; SmartJoin: Detect if CHAR(s) is/are already present at the end of the line before joining the next, this to prevent unnecessary double spaces for example.
; Char: character(s) to use between new lines, defaults to a space. To use nothing use ""
TF_Join(Text, StartLine = 1, EndLine = 0, SmartJoin = 0, Char = 0)
	{
	 If ( (InStr(StartLine,",") > 0) AND (InStr(StartLine,"-") = 0) ) OR (InStr(StartLine,"+") > 0)
		Return Text ; can't do multiplelines, only multiple sections of lines e.g. "1,5" bad "1-5,15-10" good, "2+2" also bad
	 TF_GetData(OW, Text, FileName) 
	 If (InStr(Text,"`n") = 0)
		Return Text ; there are no lines to join so just return Text
	 If (InStr(StartLine,"-") > 0)	; OK, we need some counter-intuitive string mashing to substract ONE from the "endline" parameter
		{
		 Loop, Parse, StartLine, CSV
			{
			 StringSplit, part, A_LoopField, -
			 NewStartLine .= part1 "-" (part2-1) ","
			}
		 StringTrimRight, StartLine, NewStartLine, 1
		}		
	 If (Endline > 0)
		Endline-- 
	 TF_MatchList:=_MakeMatchList(Text, StartLine, EndLine, 0, A_ThisFunc)
	 If (Char = 0)
		Char:=A_Space
	 Char_Org:=Char
	 GetRightLen:=StrLen(Char)-1
	 Loop, Parse, Text, `n, `r
		{
		 If A_Index in %TF_MatchList%
			{
			 If (SmartJoin = 1)
				{
				 GetRightText:=SubStr(A_LoopField,0)
				 If (GetRightText = Char)
					Char=
				}
			 Output .= A_LoopField Char
			 Char:=Char_Org
			}
		 Else 
			Output .= A_LoopField "`n"
		}
	 Return TF_ReturnOutPut(OW, OutPut, FileName) 
	}

;----- Helper functions ----------------
	
TF_SetGlobal(var, content = "") ; helper function for TF_Split* to return array and not files, credits Tuncay :-)
	{
	 global
	 %var% := content
	}
	
; Helper function to determine if VAR/TEXT or FILE is passed to TF
; Update 11 January 2010 (skip filecheck if `n in Text -> can't be file)
TF_GetData(byref OW, byref Text, byref FileName) 
	{
	 If (text = 0) ; v3.6 
		{
		 MsgBox, 48, TF Lib Error, % "Read Error:`npossible reason: perhaps you used ! vs ""!"" ?"
		 ExitApp
		}
	 OW=0 ; default setting: asume it is a file and create file_copy
	 IfNotInString, Text, `n ; it can be a file as the Text doesn't contact a newline character
		{
		 If (SubStr(Text,1,1)="!") ; first we check for "overwrite" 
			{
			 Text:=SubStr(Text,2)
			 OW=1 ; overwrite file (if it is a file)
			} 
		 IfNotExist, %Text% ; now we can check if the file exists, it doesn't so it is a var
			{
			 If (OW=1) ; the variable started with a ! so we need to put it back because it is variable/text not a file
				Text:= "!" . Text
			 OW=2 ; no file, so it is a var or Text passed on directly to TF
			}
		}
	 Else ; there is a newline character in Text so it has to be a variable 
		{
		 OW=2
		}
	 If (OW = 0) or (OW = 1) ; it is a file, so we have to read into var Text
		{
		 Text := (SubStr(Text,1,1)="!") ? (SubStr(Text,2)) : Text
		 FileName=%Text% ; Store FileName
		 FileRead, Text, %Text% ; Read file and return as var Text
		 If (ErrorLevel > 0)
			{
			 MsgBox, 48, TF Lib Error, % "Can not read " FileName
			 ExitApp
			}
		}
	 Return
	}
	
; Skan - http://www.autohotkey.com/forum/viewtopic.php?p=45880#45880
; SetWidth() : SetWidth increases a String's length by adding spaces to it and aligns it Left/Center/Right. ( Requires Space() ) 
TF_SetWidth(Text,Width,AlignText)
	{
	 If (AlignText!=0 and AlignText!=1 and AlignText!=2)
		AlignText=0
	 If AlignText=0
		{
		 RetStr= % (Text)TF_Space(Width)
		 StringLeft, RetText, RetText, %Width%
		}
	 If AlignText=1 
		{
		 Spaces:=(Width-(StrLen(Text)))
		 RetStr= % TF_Space(Round(Spaces/2))(Text)TF_Space(Spaces-(Round(Spaces/2)))
		}
	 If AlignText=2
		{
		 RetStr= % TF_Space(Width)(Text)
		 StringRight, RetStr, RetStr, %Width%
		}
	 Return RetStr
	}

; Skan - http://www.autohotkey.com/forum/viewtopic.php?p=45880#45880
TF_Space(Width)
	{
	 Loop,%Width%
	 	Space=% Space Chr(32)
	 Return Space
	}

; Write to file or return variable depending on input
TF_ReturnOutPut(OW, Text, FileName, TrimTrailing = 1, CreateNewFile = 0) {
	If (OW = 0) ; input was file, file_copy will be created, if it already exist file_copy will be overwritten
		{
		 IfNotExist, % FileName ; check if file Exist, if not return otherwise it would create an empty file. Thanks for the idea Murp|e
			{
			 If (CreateNewFile = 1) ; CreateNewFile used for TF_SplitFileBy* and others
				{
				 OW = 1 
				 Goto CreateNewFile
				}
			 Else 
				Return
			}
		 If (TrimTrailing = 1)
			 StringTrimRight, Text, Text, 1 ; remove trailing `n
		 SplitPath, FileName,, Dir, Ext, Name
		 If (Dir = "") ; if Dir is empty Text & script are in same directory
			Dir := A_WorkingDir
		 IfExist, % Dir "\backup" ; if there is a backup dir, copy original file there
			FileCopy, % Dir "\" Name "_copy." Ext, % Dir "\backup\" Name "_copy.bak", 1
		 FileDelete, % Dir "\" Name "_copy." Ext
		 FileAppend, %Text%, % Dir "\" Name "_copy." Ext
		 Return Errorlevel ? False : True
		}
	 CreateNewFile:	
	 If (OW = 1) ; input was file, will be overwritten by output 
		{
		 IfNotExist, % FileName ; check if file Exist, if not return otherwise it would create an empty file. Thanks for the idea Murp|e
			{
			If (CreateNewFile = 0) ; CreateNewFile used for TF_SplitFileBy* and others
				Return
			}
		 If (TrimTrailing = 1)
			 StringTrimRight, Text, Text, 1 ; remove trailing `n
		 SplitPath, FileName,, Dir, Ext, Name
		 If (Dir = "") ; if Dir is empty Text & script are in same directory
			Dir := A_WorkingDir
		 IfExist, % Dir "\backup" ; if there is a backup dir, copy original file there
			FileCopy, % Dir "\" Name "." Ext, % Dir "\backup\" Name ".bak", 1
		 FileDelete, % Dir "\" Name "." Ext
		 FileAppend, %Text%, % Dir "\" Name "." Ext
		 Return Errorlevel ? False : True
		}
	If (OW = 2) ; input was var, return variable 
		{
		 If (TrimTrailing = 1)
			StringTrimRight, Text, Text, 1 ; remove trailing `n
		 Return Text
		}
	}

; _MakeMatchList()
; Purpose:
; Make a MatchList which is used in various functions
; Using a MatchList gives greater flexibility so you can process multiple
; sections of lines in one go avoiding repetitive fileread/append actions
; For TF 3.4 added COL = 0/1 option (for TF_Col* functions) and CallFunc for
; all TF_* functions to facilitate bug tracking
_MakeMatchList(Text, Start = 1, End = 0, Col = 0, CallFunc = "Not available")
	{
	 ErrorList=
	 (join|
Error 01: Invalid StartLine parameter (non numerical character)`nFunction used: %CallFunc%
Error 02: Invalid EndLine parameter (non numerical character)`nFunction used: %CallFunc%
Error 03: Invalid StartLine parameter (only one + allowed)`nFunction used: %CallFunc%
	 )
	 StringSplit, ErrorMessage, ErrorList, |
	 Error = 0

	 If (Col = 1)
		{
		 LongestLine:=TF_Stat(Text)
		 If (End > LongestLine) or (End = 1) ; FIXITHERE BUG
			End:=LongestLine
		}

	 TF_MatchList= ; just to be sure
	 If (Start = 0 or Start = "")
		Start = 1
		
	 ; some basic error checking

	 ; error: only digits - and + allowed
	 If (RegExReplace(Start, "[ 0-9+\-\,]", "") <> "")
		 Error = 1
		 
	 If (RegExReplace(End, "[0-9 ]", "") <> "")
		 Error = 2

	 ; error: only one + allowed
	 If (TF_Count(Start,"+") > 1)
		 Error = 3

	 If (Error > 0 )
		{
		 MsgBox, 48, TF Lib Error, % ErrorMessage%Error%
		 ExitApp
		}

	 ; Option #0 [ added 30-Oct-2010 ]
	 ; Startline has negative value so process X last lines of file
	 ; endline parameter ignored 

	 If (Start < 0) ; remove last X lines from file, endline parameter ignored
		{
		 Start:=TF_CountLines(Text) + Start + 1
		 End=0 ; now continue
		}

	 ; Option #1
	 ; StartLine has + character indicating startline + incremental processing. 
	 ; EndLine will be used
	 ; Make TF_MatchList

	 IfInString, Start, `+ 
		{
		 If (End = 0 or End = "") ; determine number of lines
			End:= TF_Count(Text, "`n") + 1
		 StringSplit, Section, Start, `, ; we need to create a new "TF_MatchList" so we split by ,
		 Loop, %Section0%
			{
			 StringSplit, SectionLines, Section%A_Index%, `+
			 LoopSection:=End + 1 - SectionLines1
			 Counter=0
			 	 TF_MatchList .= SectionLines1 ","
			 Loop, %LoopSection%
				{
				 If (A_Index >= End) ; 
					Break
				 If (Counter = (SectionLines2-1)) ; counter is smaller than the incremental value so skip
					{
					 TF_MatchList .= (SectionLines1 + A_Index) ","
					 Counter=0
					}
				 Else
					Counter++
				}
			}
		 StringTrimRight, TF_MatchList, TF_MatchList, 1 ; remove trailing , 
		 Return TF_MatchList
		}

	 ; Option #2
	 ; StartLine has - character indicating from-to, COULD be multiple sections. 
	 ; EndLine will be ignored
	 ; Make TF_MatchList

	 IfInString, Start, `-
		{
		 StringSplit, Section, Start, `, ; we need to create a new "TF_MatchList" so we split by ,
		 Loop, %Section0%
			{
			 StringSplit, SectionLines, Section%A_Index%, `-
			 LoopSection:=SectionLines2 + 1 - SectionLines1
			 Loop, %LoopSection%
				{
				 TF_MatchList .= (SectionLines1 - 1 + A_Index) ","
				}
			}
		 StringTrimRight, TF_MatchList, TF_MatchList, 1 ; remove trailing ,
		 Return TF_MatchList
		}

	 ; Option #3
	 ; StartLine has comma indicating multiple lines. 
	 ; EndLine will be ignored
	 
	 IfInString, Start, `,
		{
		 TF_MatchList:=Start
		 Return TF_MatchList
		}

	 ; Option #4
	 ; parameters passed on as StartLine, EndLine. 
	 ; Make TF_MatchList from StartLine to EndLine

	 If (End = 0 or End = "") ; determine number of lines
			End:= TF_Count(Text, "`n") + 1
	 LoopTimes:=End-Start
	 Loop, %LoopTimes%
		{
		 TF_MatchList .= (Start - 1 + A_Index) ","
		}
	 TF_MatchList .= End ","
	 StringTrimRight, TF_MatchList, TF_MatchList, 1 ; remove trailing ,
	 Return TF_MatchList
	}

; added for TF 3.4 col functions - currently only gets longest line may change in future
TF_Stat(Text)
	{ 
	 TF_GetData(OW, Text, FileName)	 
	 Sort, Text, f _AscendingLinesL
	 Pos:=InStr(Text,"`n")-1
	 Return pos
	}

_AscendingLinesL(a1, a2) ; used by TF_Stat
	{
	 Return StrLen(a2) - StrLen(a1)
	}

/* -------------- */