Functions left ,Right for string manipulation

[Dimitris Katsaounis]

My proposal to the community for Left and Right Function in String.h library

'Return the <SysCharCount> most left characters of a string
Function Left (in SysInString() , SysCharCount) as string
   StringSize=SysInString(0)
   If StringSize <= SysCharCount  then
      Left=SysInString()   'If the size of the string is less than or equal to SysCharCount the entire string is return
   end if
   if StringSize > SysCharCount then
      SysInString(0)=SysCharCount
      Left=SysInString()
   end if
end function

'Return the <SysCharCount> most right characters of a string
Function Right(in SysInString() , SysCharCount) as string
   StringSize=SysInString(0)
   if StringSize <= SysCharCount  then
      Right=SysInString()   'If the size of the string is less than or equal to SysCharCount the entire string is return
   end if
   if StringSize > SysCharCount  then
      For counter = 1 to SysCharCount
        Right(SysCharCount+1-counter)=SysInString(StringSize+1-counter)
      next
      Right(0)=SysCharCount
    end if
end function

[Dimitris Katsaounis]

What about the Mid Function below. Is Working just fine for me

'Return the section of a string which begin from SysCharStart with length SysCharCount
Function Mid (in SysInString() , SysCharStart , SysCharCount) as string
    if (SysInString(0)<=SysCharCount) OR (SysInString(0)<SysCharStart) then
      Mid(0)=0
      Exit Function
    end if
    SysInString(0)=SysCharStart+SysCharCount-1
    SysInStringSize=SysInString(0)
    Mid=""
    For i=0 to SysCharCount
        Mid(SysCharCount-i)=SysInString(SysInStringSize-i)
      next
      Mid(0)=SysCharCount
end function

[mmotte]

Thanks for working on the string functions.
I will have to try them out.
With GPS and other devices returning strings, these functions will be useful for parsing out what you need.