Replace Sub String (macro): Difference between revisions
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|<small>Author: [[{{ns:2}}:redgoblin|redgoblin]] ([[{{ns:3}}:redgoblin|talk]], [[{{ns:-1}}:Contributions/redgoblin|contrib]])</small> | |||
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== Description == | == Description == | ||
Hello, I wrote this script for the newbies like me. This script is an alternative to the function StrRep written by dirtydingus. | Hello, I wrote this script for the newbies like me. This script is an alternative to the function StrRep written by dirtydingus. | ||
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FunctionEnd | FunctionEnd | ||
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Revision as of 03:02, 30 April 2005
| Author: redgoblin (talk, contrib) |
Description
Hello, I wrote this script for the newbies like me. This script is an alternative to the function StrRep written by dirtydingus.
Usage
Save this script below as ReplaceSubStr.nsh and put it in the NSIS\include\ directory.
In your script :
!include "ReplaceSubStr.nsh" ;[...] Function "blabla" !insertmacro ReplaceSubStr StrToModified SubStrToReplace SubStrReplacement MessageBox MB_OK $MODIFIED_STR ; String modified FunctionEnd
The Macro and Function
; This script is derived of a script Written by dirtydingus : ; "Another String Replace (and Slash/BackSlash Converter)" ; ; for more information please see : ; http://nsis.sourceforge.net/archive/nsisweb.php?page=155&instances=0,122 Var MODIFIED_STR !macro ReplaceSubStr OLD_STR SUB_STR REPLACEMENT_STR Push "${OLD_STR}" ;String to do replacement in (haystack) Push "${SUB_STR}" ;String to replace (needle) Push "${REPLACEMENT_STR}" ; Replacement Call StrRep Pop $R0 ;result StrCpy $MODIFIED_STR $R0 !macroend Function StrRep ;Written by dirtydingus 2003-02-20 04:30:09 ; USAGE ;Push String to do replacement in (haystack) ;Push String to replace (needle) ;Push Replacement ;Call StrRep ;Pop $R0 result Exch $R4 ; $R4 = Replacement String Exch Exch $R3 ; $R3 = String to replace (needle) Exch 2 Exch $R1 ; $R1 = String to do replacement in (haystack) Push $R2 ; Replaced haystack Push $R5 ; Len (needle) Push $R6 ; len (haystack) Push $R7 ; Scratch reg StrCpy $R2 "" StrLen $R5 $R3 StrLen $R6 $R1 loop: StrCpy $R7 $R1 $R5 StrCmp $R7 $R3 found StrCpy $R7 $R1 1 ; - optimization can be removed if U know len needle=1 StrCpy $R2 "$R2$R7" StrCpy $R1 $R1 $R6 1 StrCmp $R1 "" done loop found: StrCpy $R2 "$R2$R4" StrCpy $R1 $R1 $R6 $R5 StrCmp $R1 "" done loop done: StrCpy $R3 $R2 Pop $R7 Pop $R6 Pop $R5 Pop $R2 Pop $R1 Pop $R4 Exch $R3 FunctionEnd
