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!include "LogicLib.nsh" |
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; from: http://nsis.sourceforge.net/StrRep |
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!define StrRep "!insertmacro StrRep" |
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!macro StrRep ResultVar String SubString RepString |
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Push "${String}" |
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Push "${SubString}" |
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Push "${RepString}" |
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Call StrRep |
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Pop "${ResultVar}" |
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!macroend |
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Function StrRep |
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/*After this point: |
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------------------------------------------ |
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$R0 = RepString (input) |
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$R1 = SubString (input) |
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$R2 = String (input) |
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$R3 = RepStrLen (temp) |
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$R4 = SubStrLen (temp) |
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$R5 = StrLen (temp) |
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$R6 = StartCharPos (temp) |
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$R7 = TempStrL (temp) |
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$R8 = TempStrR (temp)*/ |
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|
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;Get input from user |
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Exch $R0 |
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Exch |
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Exch $R1 |
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Exch |
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Exch 2 |
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Exch $R2 |
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Push $R3 |
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Push $R4 |
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Push $R5 |
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Push $R6 |
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Push $R7 |
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Push $R8 |
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;Return "String" if "SubString" is "" |
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${IfThen} $R1 == "" ${|} Goto Done ${|} |
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;Get "RepString", "String" and "SubString" length |
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StrLen $R3 $R0 |
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StrLen $R4 $R1 |
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StrLen $R5 $R2 |
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;Start "StartCharPos" counter |
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StrCpy $R6 0 |
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;Loop until "SubString" is found or "String" reaches its end |
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${Do} |
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;Remove everything before and after the searched part ("TempStrL") |
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StrCpy $R7 $R2 $R4 $R6 |
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;Compare "TempStrL" with "SubString" |
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${If} $R7 == $R1 |
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;Split "String" to replace the string wanted |
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StrCpy $R7 $R2 $R6 ;TempStrL |
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;Calc: "StartCharPos" + "SubStrLen" = EndCharPos |
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IntOp $R8 $R6 + $R4 |
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StrCpy $R8 $R2 "" $R8 ;TempStrR |
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;Insert the new string between the two separated parts of "String" |
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StrCpy $R2 $R7$R0$R8 |
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;Now calculate the new "StrLen" and "StartCharPos" |
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StrLen $R5 $R2 |
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IntOp $R6 $R6 + $R3 |
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${Continue} |
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${EndIf} |
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;If not "SubString", this could be "String" end |
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${IfThen} $R6 >= $R5 ${|} ${ExitDo} ${|} |
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;If not, continue the loop |
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IntOp $R6 $R6 + 1 |
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${Loop} |
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Done: |
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;Return output to user |
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StrCpy $R0 $R2 |
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/*After this point: |
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------------------------------------------ |
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$R0 = ResultVar (output)*/ |
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Pop $R8 |
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Pop $R7 |
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Pop $R6 |
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Pop $R5 |
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Pop $R4 |
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Pop $R3 |
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Pop $R2 |
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Pop $R1 |
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Exch $R0 |
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FunctionEnd |
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