PureBasic Forums - English

Posted: **Wed Apr 01, 2009 1:07 pm**

I'd like to have a fast function which replaces

s.s
:
s=Left(s,a)+Mid(s,a+n)

by

Code: Select all

RemoveChars(s,a,n)

I also ask, if something like #PB_String_InPlace could speed up ReplaceString() when the length of the searched string is longer than the text to replace...

Michael

Posted: **Wed Apr 01, 2009 2:30 pm**

Hi,

It is very easy to create such routines by yourself.

Code: Select all

Structure tChar
   StructureUnion
      c.c
      s.s { 1 }
   EndStructureUnion
EndStructure

Procedure.s RemoveChars ( sSource.s , nStarChar.i , nLength.i )
   Protected *Source       .tChar   = @ sSource
   Protected *CutPartStart          = *Source + ( nStarChar * SizeOf ( tChar ) )
   Protected *CutPartEnd            = *CutPartStart + ( nLength * SizeOf ( tChar ) )
   Protected sTemp         .s             
   
   If Not *Source
      ProcedureReturn sSource
   EndIf
 
   While *Source\c
      
      If *Source < *CutPartStart Or *Source => *CutPartEnd
         sTemp + *Source\s
      EndIf
 
      *Source + SizeOf ( tChar )
   Wend
   
   ProcedureReturn sTemp
EndProcedure

Debug RemoveChars ( "Hello world" , 9 , 1 )
Debug RemoveChars ( "Feel the pure power" , 10 , 5 )

Regards

Wolf

Posted: **Wed Apr 01, 2009 3:35 pm**

Thanks Hroudtwolf,

you're right - quite a lot of functions are simple to implement (like the integer functions abs, min, max, signum etc.), other things could be more difficult (e.g. allow the #PB_String_NoCase also in FindString)...

But using selfmade functions means also (slightly) larger source codes and tons of different implementations (and incompatibilities) of the "same" functions.

I must admit, that my functions won't be useful in a huge number of programs, so they just should be kept on the whishlist :roll:

Michael

PureBasic Forums - English

Some string enhancements...

Some string enhancements...