GetInQuotes: Get string from between quotes

From NSIS Wiki

Author: Afrow UK (talk, contrib)


Description

This function was written for zukex in this forum topic. It takes a string from between quotes in another string. If no paired quotes are found, the function will return an empty string.

Usage

Push 'a string containing "quotes"!'
Call GetInQuotes
Pop $R0 ; = quotes

The Function

Function GetInQuotes
Exch $R0
Push $R1
Push $R2
Push $R3
 
 StrCpy $R2 -1
 IntOp $R2 $R2 + 1
  StrCpy $R3 $R0 1 $R2
  StrCmp $R3 "" 0 +3
   StrCpy $R0 ""
   Goto Done
  StrCmp $R3 '"' 0 -5
 
 IntOp $R2 $R2 + 1
 StrCpy $R0 $R0 "" $R2
 
 StrCpy $R2 0
 IntOp $R2 $R2 + 1
  StrCpy $R3 $R0 1 $R2
  StrCmp $R3 "" 0 +3
   StrCpy $R0 ""
   Goto Done
  StrCmp $R3 '"' 0 -5
 
 StrCpy $R0 $R0 $R2
 Done:
 
Pop $R3
Pop $R2
Pop $R1
Exch $R0
FunctionEnd

-Stu

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