Get first part of a string

Author: Afrow UK (talk, contrib)

Description

This script allows you to get the part of the input string before the first space " " or before a character of your choice.

Usage

Push "HelloAll I am Afrow UK, and I love NSIS" ; Input string
Call GetFirstStrPart
Pop "$R0"

Where $R0 will now be "HelloAll"

The Function

Function GetFirstStrPart
  Exch $R0
  Push $R1
  Push $R2
  StrLen $R1 $R0
  IntOp $R1 $R1 + 1
  loop:
    IntOp $R1 $R1 - 1
    StrCpy $R2 $R0 1 -$R1
    StrCmp $R2 "" exit2
    StrCmp $R2 " " exit1 ; Change " " to "\" if ur inputting dir path str
  Goto loop
  exit1:
    StrCpy $R0 $R0 -$R1
  exit2:
    Pop $R2
    Pop $R1
    Exch $R0
FunctionEnd

Written by me (Afrow UK)

-Stuart