Laboratoire ICAR » Plateforme TXM

; NSIS LOGIC LIBRARY - LogicLib.nsh

; Version 2.6 - 08/12/2007

; By dselkirk@hotmail.com

; and eccles@users.sf.net

; with IfNot support added by Message

;

; Questions/Comments -

; See http://forums.winamp.com/showthread.php?s=&postid=1116241

;

; Description:

;   Provides the use of various logic statements within NSIS.

;

; Usage:

;   The following "statements" are available:

;       If|IfNot|Unless..{ElseIf|ElseIfNot|ElseUnless}..[Else]..EndIf|EndUnless

;         - Conditionally executes a block of statements, depending on the value

;           of an expression. IfNot and Unless are equivalent and

;           interchangeable, as are ElseIfNot and ElseUnless.

;       AndIf|AndIfNot|AndUnless|OrIf|OrIfNot|OrUnless

;         - Adds any number of extra conditions to If, IfNot, Unless, ElseIf,

;           ElseIfNot and ElseUnless statements.

;       IfThen|IfNotThen..|..|

;         - Conditionally executes an inline statement, depending on the value

;           of an expression.

;       IfCmd..||..|

;         - Conditionally executes an inline statement, depending on a true

;           value of the provided NSIS function.

;       Select..{Case[2|3|4|5]}..[CaseElse|Default]..EndSelect

;         - Executes one of several blocks of statements, depending on the value

;           of an expression.

;       Switch..{Case|CaseElse|Default}..EndSwitch

;         - Jumps to one of several labels, depending on the value of an

;           expression.

;       Do[While|Until]..{ExitDo|Continue|Break}..Loop[While|Until]

;         - Repeats a block of statements until stopped, or depending on the

;           value of an expression.

;       While..{ExitWhile|Continue|Break}..EndWhile

;         - An alias for DoWhile..Loop (for backwards-compatibility)

;       For[Each]..{ExitFor|Continue|Break}..Next

;         - Repeats a block of statements varying the value of a variable.

;

;   The following "expressions" are available:

;       Standard (built-in) string tests (which are case-insensitive):

;         a == b; a != b

;       Additional case-insensitive string tests (using System.dll):

;         a S< b; a S>= b; a S> b; a S<= b

;       Case-sensitive string tests:

;         a S== b; a S!= b

;       Standard (built-in) signed integer tests:

;         a = b; a <> b; a < b; a >= b; a > b; a <= b

;       Standard (built-in) unsigned integer tests:

;         a U< b; a U>= b; a U> b; a U<= b

;       64-bit integer tests (using System.dll):

;         a L= b; a L<> b; a L< b; a L>= b; a L> b; a L<= b

;       ptrdiff_t integer tests

;         a P= b; a P<> b; a P< b; a P>= b; a P> b; a P<= b

;       size_t integer tests

;         a Z= b; a Z<> b; a Z< b; a Z>= b; a Z> b; a Z<= b

;       Built-in NSIS flag tests:

;         ${Abort}; ${Errors}; ${RebootFlag}; ${Silent}

;       Built-in NSIS other tests:

;         ${FileExists} a

;       Any conditional NSIS instruction test:

;         ${Cmd} a

;       Section flag tests:

;         ${SectionIsSelected} a; ${SectionIsSectionGroup} a;

;         ${SectionIsSectionGroupEnd} a; ${SectionIsBold} a;

;         ${SectionIsReadOnly} a; ${SectionIsExpanded} a;

;         ${SectionIsPartiallySelected} a

;

; Examples:

;   See LogicLib.nsi in the Examples folder for lots of example usage.

!verbose push

!verbose 3

!ifndef LOGICLIB_VERBOSITY

  !define LOGICLIB_VERBOSITY 3

!endif

!define _LOGICLIB_VERBOSITY ${LOGICLIB_VERBOSITY}

!undef LOGICLIB_VERBOSITY

!verbose ${_LOGICLIB_VERBOSITY}

!ifndef LOGICLIB

  !define LOGICLIB

  !define | "'"

  !define || "' '"

  !define LOGICLIB_COUNTER 0

  !include Sections.nsh

  !macro _LOGICLIB_TEMP

    !ifndef _LOGICLIB_TEMP

      !define _LOGICLIB_TEMP

      Var /GLOBAL _LOGICLIB_TEMP  ; Temporary variable to aid the more elaborate logic tests

    !endif

  !macroend

  !macro _IncreaseCounter

    !define _LOGICLIB_COUNTER ${LOGICLIB_COUNTER}

    !undef LOGICLIB_COUNTER

    !define /math LOGICLIB_COUNTER ${_LOGICLIB_COUNTER} + 1

    !undef _LOGICLIB_COUNTER

  !macroend

  !macro _PushLogic

    !insertmacro _PushScope Logic _LogicLib_Label_${LOGICLIB_COUNTER}

    !insertmacro _IncreaseCounter

  !macroend

  !macro _PopLogic

    !insertmacro _PopScope Logic

  !macroend

  !macro _PushScope Type label

    !ifdef _${Type}                                       ; If we already have a statement

      !define _Cur${Type} ${_${Type}}

      !undef _${Type}

      !define _${Type} ${label}

      !define ${_${Type}}Prev${Type} ${_Cur${Type}}       ; Save the current logic

      !undef _Cur${Type}

    !else

      !define _${Type} ${label}                           ; Initialise for first statement

    !endif

  !macroend

  !macro _PopScope Type

    !ifndef _${Type}

      !error "Cannot use _Pop${Type} without a preceding _Push${Type}"

    !endif

    !ifdef ${_${Type}}Prev${Type}                         ; If a previous statment was active then restore it

      !define _Cur${Type} ${_${Type}}

      !undef _${Type}

      !define _${Type} ${${_Cur${Type}}Prev${Type}}

      !undef ${_Cur${Type}}Prev${Type}

      !undef _Cur${Type}

    !else

      !undef _${Type}

    !endif

  !macroend

  ; String tests

  !macro _== _a _b _t _f

    StrCmp `${_a}` `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _!= _a _b _t _f

    !insertmacro _== `${_a}` `${_b}` `${_f}` `${_t}`

  !macroend

  ; Case-sensitive string tests

  !macro _S== _a _b _t _f

    StrCmpS `${_a}` `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _S!= _a _b _t _f

    !insertmacro _S== `${_a}` `${_b}` `${_f}` `${_t}`

  !macroend

  ; Extra string tests (cannot do these case-sensitively - I tried and lstrcmp still ignored the case)

  !macro _StrCmpI _a _b _e _l _m

    !insertmacro _LOGICLIB_TEMP

    System::Call `kernel32::lstrcmpiA(ts, ts) i.s` `${_a}` `${_b}`

    Pop $_LOGICLIB_TEMP

    IntCmp $_LOGICLIB_TEMP 0 `${_e}` `${_l}` `${_m}`

  !macroend

  !macro _S< _a _b _t _f

    !insertmacro _StrCmpI `${_a}` `${_b}` `${_f}` `${_t}` `${_f}`

  !macroend

  !macro _S>= _a _b _t _f

    !insertmacro _S< `${_a}` `${_b}` `${_f}` `${_t}`

  !macroend

  !macro _S> _a _b _t _f

    !insertmacro _StrCmpI `${_a}` `${_b}` `${_f}` `${_f}` `${_t}`

  !macroend

  !macro _S<= _a _b _t _f

    !insertmacro _S> `${_a}` `${_b}` `${_f}` `${_t}`

  !macroend

  ; Integer tests

  !macro _= _a _b _t _f

    IntCmp `${_a}` `${_b}` `${_t}` `${_f}` `${_f}`

  !macroend

  !macro _<> _a _b _t _f

    !insertmacro _= `${_a}` `${_b}` `${_f}` `${_t}`

  !macroend

  !macro _< _a _b _t _f

    IntCmp `${_a}` `${_b}` `${_f}` `${_t}` `${_f}`

  !macroend

  !macro _>= _a _b _t _f

    !insertmacro _< `${_a}` `${_b}` `${_f}` `${_t}`

  !macroend

  !macro _> _a _b _t _f

    IntCmp `${_a}` `${_b}` `${_f}` `${_f}` `${_t}`

  !macroend

  !macro _<= _a _b _t _f

    !insertmacro _> `${_a}` `${_b}` `${_f}` `${_t}`

  !macroend

  ; Unsigned integer tests (NB: no need for extra equality tests)

  !macro _U< _a _b _t _f

    IntCmpU `${_a}` `${_b}` `${_f}` `${_t}` `${_f}`

  !macroend

  !macro _U>= _a _b _t _f

    !insertmacro _U< `${_a}` `${_b}` `${_f}` `${_t}`

  !macroend

  !macro _U> _a _b _t _f

    IntCmpU `${_a}` `${_b}` `${_f}` `${_f}` `${_t}`

  !macroend

  !macro _U<= _a _b _t _f

    !insertmacro _U> `${_a}` `${_b}` `${_f}` `${_t}`

  !macroend

  ; Int64 tests

  !macro _Int64Cmp _a _o _b _t _f

    !insertmacro _LOGICLIB_TEMP

    System::Int64Op `${_a}` `${_o}` `${_b}`

    Pop $_LOGICLIB_TEMP

    !insertmacro _= $_LOGICLIB_TEMP 0 `${_f}` `${_t}`

  !macroend

  !macro _L= _a _b _t _f

    !insertmacro _Int64Cmp `${_a}` = `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _L<> _a _b _t _f

    !insertmacro _L= `${_a}` `${_b}` `${_f}` `${_t}`

  !macroend

  !macro _L< _a _b _t _f

    !insertmacro _Int64Cmp `${_a}` < `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _L>= _a _b _t _f

    !insertmacro _L< `${_a}` `${_b}` `${_f}` `${_t}`

  !macroend

  !macro _L> _a _b _t _f

    !insertmacro _Int64Cmp `${_a}` > `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _L<= _a _b _t _f

    !insertmacro _L> `${_a}` `${_b}` `${_f}` `${_t}`

  !macroend

  ; ptrdiff_t & size_t tests

  !macro _P= _a _b _t _f

    !insertmacro _= `${_a}` `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _P<> _a _b _t _f

    !insertmacro _<> `${_a}` `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _P< _a _b _t _f

    !insertmacro _< `${_a}` `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _P>= _a _b _t _f

    !insertmacro _>= `${_a}` `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _P> _a _b _t _f

    !insertmacro _> `${_a}` `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _P<= _a _b _t _f

    !insertmacro _<= `${_a}` `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _Z= _a _b _t _f

    !insertmacro _= `${_a}` `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _Z<> _a _b _t _f

    !insertmacro _<> `${_a}` `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _Z< _a _b _t _f

    !insertmacro _U< `${_a}` `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _Z>= _a _b _t _f

    !insertmacro _U>= `${_a}` `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _Z> _a _b _t _f

    !insertmacro _U> `${_a}` `${_b}` `${_t}` `${_f}`

  !macroend

  !macro _Z<= _a _b _t _f

    !insertmacro _U<= `${_a}` `${_b}` `${_t}` `${_f}`

  !macroend

  ; Flag tests

  !macro _Abort _a _b _t _f

    IfAbort `${_t}` `${_f}`

  !macroend

  !define Abort `"" Abort ""`

  !macro _Errors _a _b _t _f

    IfErrors `${_t}` `${_f}`

  !macroend

  !define Errors `"" Errors ""`

  !macro _FileExists _a _b _t _f

    IfFileExists `${_b}` `${_t}` `${_f}`

  !macroend

  !define FileExists `"" FileExists`

  !macro _RebootFlag _a _b _t _f

    IfRebootFlag `${_t}` `${_f}`

  !macroend

  !define RebootFlag `"" RebootFlag ""`

  !macro _Silent _a _b _t _f

    IfSilent `${_t}` `${_f}`

  !macroend

  !define Silent `"" Silent ""`

  ; "Any instruction" test

  !macro _Cmd _a _b _t _f

    !define _t=${_t}

    !ifdef _t=                                            ; If no true label then make one

      !define __t _LogicLib_Label_${LOGICLIB_COUNTER}

      !insertmacro _IncreaseCounter

    !else

      !define __t ${_t}

    !endif

    ${_b} ${__t}

    !define _f=${_f}

    !ifndef _f=                                           ; If a false label then go there

      Goto ${_f}

    !endif

    !undef _f=${_f}

    !ifdef _t=                                            ; If we made our own true label then place it

      ${__t}:

    !endif

    !undef __t

    !undef _t=${_t}

  !macroend

  !define Cmd `"" Cmd`

  ; Section flag test

  !macro _SectionFlagIsSet _a _b _t _f

    !insertmacro _LOGICLIB_TEMP

    SectionGetFlags `${_b}` $_LOGICLIB_TEMP

    IntOp $_LOGICLIB_TEMP $_LOGICLIB_TEMP & `${_a}`

    !insertmacro _= $_LOGICLIB_TEMP `${_a}` `${_t}` `${_f}`

  !macroend

  !define SectionIsSelected `${SF_SELECTED} SectionFlagIsSet`

  !define SectionIsSubSection `${SF_SUBSEC} SectionFlagIsSet`

  !define SectionIsSubSectionEnd `${SF_SUBSECEND} SectionFlagIsSet`

  !define SectionIsSectionGroup `${SF_SECGRP} SectionFlagIsSet`

  !define SectionIsSectionGroupEnd `${SF_SECGRPEND} SectionFlagIsSet`

  !define SectionIsBold `${SF_BOLD} SectionFlagIsSet`

  !define SectionIsReadOnly `${SF_RO} SectionFlagIsSet`

  !define SectionIsExpanded `${SF_EXPAND} SectionFlagIsSet`

  !define SectionIsPartiallySelected `${SF_PSELECTED} SectionFlagIsSet`

  !define IfCmd `!insertmacro _IfThen "" Cmd ${|}`

  !macro _If _c _a _o _b

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    !insertmacro _PushLogic

    !define ${_Logic}If

    !define ${_Logic}Else _LogicLib_Label_${LOGICLIB_COUNTER}                    ; Get a label for the Else

    !insertmacro _IncreaseCounter

    !define _c=${_c}

    !ifdef _c=true                                        ; If is true

      !insertmacro _${_o} `${_a}` `${_b}` "" ${${_Logic}Else}

    !else                                                 ; If condition is false

      !insertmacro _${_o} `${_a}` `${_b}` ${${_Logic}Else} ""

    !endif

    !undef _c=${_c}

    !verbose pop

  !macroend

  !define If     `!insertmacro _If true`

  !define Unless `!insertmacro _If false`

  !define IfNot  `!insertmacro _If false`

  !macro _And _c _a _o _b

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    !ifndef _Logic | ${_Logic}If

      !error "Cannot use And without a preceding If or IfNot/Unless"

    !endif

    !ifndef ${_Logic}Else

      !error "Cannot use And following an Else"

    !endif

    !define _c=${_c}

    !ifdef _c=true                                        ; If is true

      !insertmacro _${_o} `${_a}` `${_b}` "" ${${_Logic}Else}

    !else                                                 ; If condition is false

      !insertmacro _${_o} `${_a}` `${_b}` ${${_Logic}Else} ""

    !endif

    !undef _c=${_c}

    !verbose pop

  !macroend

  !define AndIf     `!insertmacro _And true`

  !define AndUnless `!insertmacro _And false`

  !define AndIfNot  `!insertmacro _And false`

  !macro _Or _c _a _o _b

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    !ifndef _Logic | ${_Logic}If

      !error "Cannot use Or without a preceding If or IfNot/Unless"

    !endif

    !ifndef ${_Logic}Else

      !error "Cannot use Or following an Else"

    !endif

    !define _label _LogicLib_Label_${LOGICLIB_COUNTER}                           ; Skip this test as we already

    !insertmacro _IncreaseCounter

    Goto ${_label}                                        ; have a successful result

    ${${_Logic}Else}:                                     ; Place the Else label

    !undef ${_Logic}Else                                  ; and remove it

    !define ${_Logic}Else _LogicLib_Label_${LOGICLIB_COUNTER}                    ; Get a label for the next Else and perform the new If

    !insertmacro _IncreaseCounter

    !define _c=${_c}

    !ifdef _c=true                                        ; If is true

      !insertmacro _${_o} `${_a}` `${_b}` "" ${${_Logic}Else}

    !else                                                 ; If condition is false

      !insertmacro _${_o} `${_a}` `${_b}` ${${_Logic}Else} ""

    !endif

    !undef _c=${_c}

    ${_label}:

    !undef _label

    !verbose pop

  !macroend

  !define OrIf     `!insertmacro _Or true`

  !define OrUnless `!insertmacro _Or false`

  !define OrIfNot  `!insertmacro _Or false`

  !macro _Else

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    !ifndef _Logic | ${_Logic}If

      !error "Cannot use Else without a preceding If or IfNot/Unless"

    !endif

    !ifndef ${_Logic}Else

      !error "Cannot use Else following an Else"

    !endif

    !ifndef ${_Logic}EndIf                                ; First Else for this If?

      !define ${_Logic}EndIf _LogicLib_Label_${LOGICLIB_COUNTER}                 ; Get a label for the EndIf

      !insertmacro _IncreaseCounter

    !endif

    Goto ${${_Logic}EndIf}                                ; Go to the EndIf

    ${${_Logic}Else}:                                     ; Place the Else label

    !undef ${_Logic}Else                                  ; and remove it

    !verbose pop

  !macroend

  !define Else `!insertmacro _Else`

  !macro _ElseIf _c _a _o _b

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    ${Else}                                               ; Perform the Else

    !define ${_Logic}Else _LogicLib_Label_${LOGICLIB_COUNTER}                    ; Get a label for the next Else and perform the new If

    !insertmacro _IncreaseCounter

    !define _c=${_c}

    !ifdef _c=true                                        ; If is true

      !insertmacro _${_o} `${_a}` `${_b}` "" ${${_Logic}Else}

    !else                                                 ; If condition is false

      !insertmacro _${_o} `${_a}` `${_b}` ${${_Logic}Else} ""

    !endif

    !undef _c=${_c}

    !verbose pop

  !macroend

  !define ElseIf     `!insertmacro _ElseIf true`

  !define ElseUnless `!insertmacro _ElseIf false`

  !define ElseIfNot  `!insertmacro _ElseIf false`

  !macro _EndIf _n

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    !ifndef _Logic | ${_Logic}If

      !error "Cannot use End${_n} without a preceding If or IfNot/Unless"

    !endif

    !ifdef ${_Logic}Else

      ${${_Logic}Else}:                                   ; Place the Else label

      !undef ${_Logic}Else                                ; and remove it

    !endif

    !ifdef ${_Logic}EndIf

      ${${_Logic}EndIf}:                                  ; Place the EndIf

      !undef ${_Logic}EndIf                               ; and remove it

    !endif

    !undef ${_Logic}If

    !insertmacro _PopLogic

    !verbose pop

  !macroend

  !define EndIf     `!insertmacro _EndIf If`

  !define EndUnless `!insertmacro _EndIf Unless`

  !macro _IfThen _a _o _b _t

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    ${If} `${_a}` `${_o}` `${_b}`

      ${_t}

    ${EndIf}

    !verbose pop

  !macroend

  !define IfThen `!insertmacro _IfThen`

  !macro _IfNotThen _a _o _b _t

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    ${IfNot} `${_a}` `${_o}` `${_b}`

      ${_t}

    ${EndIf}

    !verbose pop

  !macroend

  !define IfNotThen `!insertmacro _IfNotThen`

  !macro _ForEach _v _f _t _o _s

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    StrCpy "${_v}" "${_f}"                                ; Assign the initial value

    Goto +2                                               ; Skip the loop expression for the first iteration

    !define _DoLoopExpression `IntOp "${_v}" "${_v}" "${_o}" "${_s}"` ; Define the loop expression

    !define _o=${_o}

    !ifdef _o=+                                           ; Check the loop expression operator

      !define __o >                                       ; to determine the correct loop condition

    !else ifdef _o=-

      !define __o <

    !else

      !error "Unsupported ForEach step operator (must be + or -)"

    !endif

    !undef _o=${_o}

    !insertmacro _Do For false `${_v}` `${__o}` `${_t}`   ; Let Do do the rest

    !undef __o

    !verbose pop

  !macroend

  !define ForEach `!insertmacro _ForEach`

  !macro _For _v _f _t

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    ${ForEach} `${_v}` `${_f}` `${_t}` + 1                ; Pass on to ForEach

    !verbose pop

  !macroend

  !define For `!insertmacro _For`

  !define ExitFor `!insertmacro _Goto ExitFor For`

  !define Next      `!insertmacro _Loop For Next "" "" "" ""`

  !define While     `!insertmacro _Do While true`

  !define ExitWhile `!insertmacro _Goto ExitWhile While`

  !define EndWhile  `!insertmacro _Loop While EndWhile "" "" "" ""`

  !macro _Do _n _c _a _o _b

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    !insertmacro _PushLogic

    !define ${_Logic}${_n} _LogicLib_Label_${LOGICLIB_COUNTER}                   ; Get a label for the start of the loop

    !insertmacro _IncreaseCounter

    ${${_Logic}${_n}}:

    !insertmacro _PushScope Exit${_n} _LogicLib_Label_${LOGICLIB_COUNTER}        ; Get a label for the end of the loop

    !insertmacro _IncreaseCounter

    !insertmacro _PushScope Break ${_Exit${_n}}           ; Break goes to the end of the loop

    !ifdef _DoLoopExpression

      ${_DoLoopExpression}                                ; Special extra parameter for inserting code

      !undef _DoLoopExpression                            ; between the Continue label and the loop condition

    !endif

    !define _c=${_c}

    !ifdef _c=                                            ; No starting condition

      !insertmacro _PushScope Continue _LogicLib_Label_${LOGICLIB_COUNTER}       ; Get a label for Continue at the end of the loop

      !insertmacro _IncreaseCounter

    !else

      !insertmacro _PushScope Continue ${${_Logic}${_n}}  ; Continue goes to the start of the loop

      !ifdef _c=true                                      ; If is true

        !insertmacro _${_o} `${_a}` `${_b}` "" ${_Exit${_n}}

      !else                                               ; If condition is false

        !insertmacro _${_o} `${_a}` `${_b}` ${_Exit${_n}} ""

      !endif

    !endif

    !undef _c=${_c}

    !define ${_Logic}Condition ${_c}                      ; Remember the condition used

    !verbose pop

  !macroend

  !define Do      `!insertmacro _Do Do "" "" "" ""`

  !define DoWhile `!insertmacro _Do Do true`

  !define DoUntil `!insertmacro _Do Do false`

  !macro _Goto _n _s

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    !ifndef _${_n}

      !error "Cannot use ${_n} without a preceding ${_s}"

    !endif

    Goto ${_${_n}}

    !verbose pop

  !macroend

  !define ExitDo   `!insertmacro _Goto ExitDo Do`

  !macro _Loop _n _e _c _a _o _b

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    !ifndef _Logic | ${_Logic}${_n}

      !error "Cannot use ${_e} without a preceding ${_n}"

    !endif

    !define _c=${${_Logic}Condition}

    !ifdef _c=                                            ; If Do had no condition place the Continue label

      ${_Continue}:

    !endif

    !undef _c=${${_Logic}Condition}

    !define _c=${_c}

    !ifdef _c=                                            ; No ending condition

      Goto ${${_Logic}${_n}}

    !else ifdef _c=true                                   ; If condition is true

      !insertmacro _${_o} `${_a}` `${_b}` ${${_Logic}${_n}} ${_Exit${_n}}

    !else                                                 ; If condition is false

      !insertmacro _${_o} `${_a}` `${_b}` ${_Exit${_n}} ${${_Logic}${_n}}

    !endif

    !undef _c=${_c}

    Goto ${_Continue}                                     ; Just to ensure it is referenced at least once

	Goto ${_Exit${_n}}                                    ; Just to ensure it is referenced at least once

    ${_Exit${_n}}:                                        ; Place the loop exit point

    !undef ${_Logic}Condition

    !insertmacro _PopScope Continue

    !insertmacro _PopScope Break

    !insertmacro _PopScope Exit${_n}

    !undef ${_Logic}${_n}

    !insertmacro _PopLogic

    !verbose pop

  !macroend

  !define Loop      `!insertmacro _Loop Do Loop "" "" "" ""`

  !define LoopWhile `!insertmacro _Loop Do LoopWhile true`

  !define LoopUntil `!insertmacro _Loop Do LoopUntil false`

  !define Continue `!insertmacro _Goto Continue "For or Do or While"`

  !define Break    `!insertmacro _Goto Break "For or Do or While"`

  !macro _Select _a

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    !insertmacro _PushLogic

    !define ${_Logic}Select `${_a}`                       ; Remember the left hand side of the comparison

    !verbose pop

  !macroend

  !define Select `!insertmacro _Select`

  !macro _Select_CaseElse

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    !ifndef _Logic | ${_Logic}Select

      !error "Cannot use Case without a preceding Select"

    !endif

    !ifdef ${_Logic}EndSelect                             ; This is set only after the first case

      !ifndef ${_Logic}Else

        !error "Cannot use Case following a CaseElse"

      !endif

      Goto ${${_Logic}EndSelect}                          ; Go to the EndSelect

      ${${_Logic}Else}:                                   ; Place the Else label

      !undef ${_Logic}Else                                ; and remove it

    !else

      !define ${_Logic}EndSelect _LogicLib_Label_${LOGICLIB_COUNTER}             ; Get a label for the EndSelect

      !insertmacro _IncreaseCounter

    !endif

    !verbose pop

  !macroend

  !define CaseElse `!insertmacro _CaseElse`

  !define Case_Else `!insertmacro _CaseElse`              ; Compatibility with 2.2 and earlier

  !define Default `!insertmacro _CaseElse`                ; For the C-minded

  !macro _Select_Case _a

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    ${CaseElse}                                           ; Perform the CaseElse

    !define ${_Logic}Else _LogicLib_Label_${LOGICLIB_COUNTER}                    ; Get a label for the next Else and perform the new Case

    !insertmacro _IncreaseCounter

    !insertmacro _== `${${_Logic}Select}` `${_a}` "" ${${_Logic}Else}

    !verbose pop

  !macroend

  !define Case `!insertmacro _Case`

  !macro _Case2 _a _b

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    ${CaseElse}                                           ; Perform the CaseElse

    !define ${_Logic}Else _LogicLib_Label_${LOGICLIB_COUNTER}                    ; Get a label for the next Else and perform the new Case

    !insertmacro _IncreaseCounter

    !insertmacro _== `${${_Logic}Select}` `${_a}` +2 ""

    !insertmacro _== `${${_Logic}Select}` `${_b}` "" ${${_Logic}Else}

    !verbose pop

  !macroend

  !define Case2 `!insertmacro _Case2`

  !macro _Case3 _a _b _c

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    ${CaseElse}                                           ; Perform the CaseElse

    !define ${_Logic}Else _LogicLib_Label_${LOGICLIB_COUNTER}                    ; Get a label for the next Else and perform the new Case

    !insertmacro _IncreaseCounter

    !insertmacro _== `${${_Logic}Select}` `${_a}` +3 ""

    !insertmacro _== `${${_Logic}Select}` `${_b}` +2 ""

    !insertmacro _== `${${_Logic}Select}` `${_c}` "" ${${_Logic}Else}

    !verbose pop

  !macroend

  !define Case3 `!insertmacro _Case3`

  !macro _Case4 _a _b _c _d

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    ${CaseElse}                                           ; Perform the CaseElse

    !define ${_Logic}Else _LogicLib_Label_${LOGICLIB_COUNTER}                    ; Get a label for the next Else and perform the new Case

    !insertmacro _IncreaseCounter

    !insertmacro _== `${${_Logic}Select}` `${_a}` +4 ""

    !insertmacro _== `${${_Logic}Select}` `${_b}` +3 ""

    !insertmacro _== `${${_Logic}Select}` `${_c}` +2 ""

    !insertmacro _== `${${_Logic}Select}` `${_d}` "" ${${_Logic}Else}

    !verbose pop

  !macroend

  !define Case4 `!insertmacro _Case4`

  !macro _Case5 _a _b _c _d _e

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    ${CaseElse}                                           ; Perform the CaseElse

    !define ${_Logic}Else _LogicLib_Label_${LOGICLIB_COUNTER}                    ; Get a label for the next Else and perform the new Case

    !insertmacro _IncreaseCounter

    !insertmacro _== `${${_Logic}Select}` `${_a}` +5 ""

    !insertmacro _== `${${_Logic}Select}` `${_b}` +4 ""

    !insertmacro _== `${${_Logic}Select}` `${_c}` +3 ""

    !insertmacro _== `${${_Logic}Select}` `${_d}` +2 ""

    !insertmacro _== `${${_Logic}Select}` `${_e}` "" ${${_Logic}Else}

    !verbose pop

  !macroend

  !define Case5 `!insertmacro _Case5`

  !macro _EndSelect

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    !ifndef _Logic | ${_Logic}Select

      !error "Cannot use EndSelect without a preceding Select"

    !endif

    !ifdef ${_Logic}Else

      ${${_Logic}Else}:                                   ; Place the Else label

      !undef ${_Logic}Else                                ; and remove it

    !endif

    !ifdef ${_Logic}EndSelect                             ; This won't be set if there weren't any cases

      ${${_Logic}EndSelect}:                              ; Place the EndSelect

      !undef ${_Logic}EndSelect                           ; and remove it

    !endif

    !undef ${_Logic}Select

    !insertmacro _PopLogic

    !verbose pop

  !macroend

  !define EndSelect `!insertmacro _EndSelect`

  !macro _Switch _a

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    !insertmacro _PushLogic

    !insertmacro _PushScope Switch ${_Logic}              ; Keep a separate stack for switch data

    !insertmacro _PushScope Break _LogicLib_Label_${LOGICLIB_COUNTER}            ; Get a lable for beyond the end of the switch

    !insertmacro _IncreaseCounter

    !define ${_Switch}Var `${_a}`                         ; Remember the left hand side of the comparison

    !tempfile ${_Switch}Tmp                               ; Create a temporary file

    !define ${_Logic}Switch _LogicLib_Label_${LOGICLIB_COUNTER}                  ; Get a label for the end of the switch

    !insertmacro _IncreaseCounter

    Goto ${${_Logic}Switch}                               ; and go there

    !verbose pop

  !macroend

  !define Switch `!insertmacro _Switch`

  !macro _Case _a

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    !ifdef _Logic & ${_Logic}Select                       ; Check for an active Select

      !insertmacro _Select_Case `${_a}`

    !else ifndef _Switch                                  ; If not then check for an active Switch

      !error "Cannot use Case without a preceding Select or Switch"

    !else

      !define _label _LogicLib_Label_${LOGICLIB_COUNTER}                         ; Get a label for this case,

      !insertmacro _IncreaseCounter

      ${_label}:                                          ; place it and add it's check to the temp file

      !appendfile "${${_Switch}Tmp}" `!insertmacro _== $\`${${_Switch}Var}$\` $\`${_a}$\` ${_label} ""$\n`

      !undef _label

    !endif

    !verbose pop

  !macroend

  !macro _CaseElse

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    !ifdef _Logic & ${_Logic}Select                       ; Check for an active Select

      !insertmacro _Select_CaseElse

    !else ifndef _Switch                                  ; If not then check for an active Switch

      !error "Cannot use Case without a preceding Select or Switch"

    !else ifdef ${_Switch}Else                            ; Already had a default case?

      !error "Cannot use CaseElse following a CaseElse"

    !else

      !define ${_Switch}Else _LogicLib_Label_${LOGICLIB_COUNTER}                 ; Get a label for the default case,

      !insertmacro _IncreaseCounter

      ${${_Switch}Else}:                                  ; and place it

    !endif

    !verbose pop

  !macroend

  !macro _EndSwitch

    !verbose push

    !verbose ${LOGICLIB_VERBOSITY}

    !ifndef _Logic | ${_Logic}Switch

      !error "Cannot use EndSwitch without a preceding Switch"

    !endif

    Goto ${_Break}                                        ; Skip the jump table

    ${${_Logic}Switch}:                                   ; Place the end of the switch

    !undef ${_Logic}Switch

    !include "${${_Switch}Tmp}"                           ; Include the jump table

    !delfile "${${_Switch}Tmp}"                           ; and clear it up

    !ifdef ${_Switch}Else                                 ; Was there a default case?

      Goto ${${_Switch}Else}                              ; then go there if all else fails

      !undef ${_Switch}Else

    !endif

    !undef ${_Switch}Tmp

    !undef ${_Switch}Var

    ${_Break}:                                            ; Place the break label

    !insertmacro _PopScope Break

    !insertmacro _PopScope Switch

    !insertmacro _PopLogic

    !verbose pop

  !macroend

  !define EndSwitch `!insertmacro _EndSwitch`

!endif ; LOGICLIB

!verbose 3

!define LOGICLIB_VERBOSITY ${_LOGICLIB_VERBOSITY}

!undef _LOGICLIB_VERBOSITY

!verbose pop