Asc - Revision history

124.43.237.209: /* Description */

2007-08-03T07:39:16Z

Description

â† Older revision		Revision as of 07:39, 3 August 2007
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	== Description ==		== Description ==
	Returns an Integer representing the character code corresponding to the first letter in a string.		Returns an Integer representing the character code corresponding to the first letter in a string.

	== Syntax ==		== Syntax ==

Kichik: even simpler

2005-10-04T10:51:38Z

even simpler

â† Older revision		Revision as of 10:51, 4 October 2005
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	Push $1		Push $1

	~~StrCpy $0 $0 1~~		System::Call "*(&t1 r0)i.r1"
	System::Call "*(&t4 r0)i.r1"		System::Call "*$1(&i1 .r0)"
	System::Call "*$1(i .r0)"
	System::Free $1		System::Free $1

Instructor: /* The Function */

2005-10-03T17:31:20Z

The Function

â† Older revision		Revision as of 17:31, 3 October 2005
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	<highlight-nsis>		<highlight-nsis>
	!macro Asc _STRING _RETURN		!macro Asc _STRING _RETURN
	~~; save global registers~~
	~~Push $0~~
	~~Push $1~~
	~~Push $2~~
	~~Push $3~~
	~~; store parameter~~
	Push ${_STRING}		Push ${_STRING}
	Call Asc		Call Asc
	~~; restore global register~~
	~~Pop $3~~
	~~Pop $2~~
	~~Pop $1~~
	~~Exch $0~~
	Pop ${_RETURN}		Pop ${_RETURN}
	!macroend		!macroend
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	;		;
	; "String" ; string argument		; "String" ; string argument
	; "Return" ; Variable where the ASCII code is returned~~. The function returns -1 if no ASCII code was found~~.		; "Return" ; Variable where the ASCII code is returned.
	;		;
	; e.g.		; e.g.
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	; get parameter		; get parameter
	~~Pop~~ $1 ; CHAR		Exch $0 ; CHAR
	~~StrCpy $1 $1 1~~		Push $1

	~~IntOp $0 0 + 0~~
	~~Asc.Do:~~
	~~IntFmt~~ $~~2 %c $0~~
	~~System::Call 'kernel32::lstrcmpA(t, t) i(r1,r2) .r3'~~
	~~StrCmp $3 "0" Asc.Exit~~
	~~IntOp $0 $0 + 1~~
	~~StrCmp $0 256 0 Asc.Do~~
	~~StrCpy $0 "-~~1"

	~~Asc~~.~~Exit~~:		StrCpy $0 $0 1
			System::Call "*(&t4 r0)i.r1"
			System::Call "*$1(i .r0)"
			System::Free $1

			Pop $1
			Exch $0
	FunctionEnd		FunctionEnd
	</highlight-nsis>		</highlight-nsis>

	[[Category:String Functions]]		[[Category:String Functions]]

MÃ¦ster at 05:44, 12 August 2005

2005-08-12T05:44:23Z

â† Older revision		Revision as of 05:44, 12 August 2005
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	</highlight-nsis>		</highlight-nsis>

			== The Function ==
	<highlight-nsis>		<highlight-nsis>
	!macro Asc _STRING _RETURN		!macro Asc _STRING _RETURN
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	!define Asc "!insertmacro Asc"		!define Asc "!insertmacro Asc"

	~~== The Function ==~~
	Function Asc		Function Asc
	; Returns an Integer representing the character code corresponding to the first letter in a string.		; Returns an Integer representing the character code corresponding to the first letter in a string.

MÃ¦ster: /* The Function */

2005-08-12T05:39:11Z

The Function

@@ Line 16: / Line 16: @@
   ${Asc} "AA" $0 ; returns 65 in $0
 </highlight-nsis>
 == The Function ==
 Function Asc
 ; Returns an Integer representing the character code corresponding to the first letter in a string.
@@ Line 32: / Line 51: @@
 ; ${Asc} "AA" $0 ; returns 65 in $0
+;
      ; get parameter

Nechai at 20:48, 16 July 2005

2005-07-16T20:48:48Z

â† Older revision		Revision as of 20:48, 16 July 2005
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	== Usage ==		== Usage ==
	<highlight-nsis>		<highlight-nsis>
	${Asc} "a"		${Asc} "a" $0 ; returns 97 in $0
	~~Pop~~ $0 ; returns 65		${Asc} "AA" $0 ; returns 65 in $0
	${Asc} "bb"
	~~Pop~~ $0 ; returns 66
	</highlight-nsis>		</highlight-nsis>

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	;		;
	; Syntax:		; Syntax:
	; ${Asc} "String"		; ${Asc} "String" "Return"
	;		;
	; "String" ; string argument		; "String" ; string argument
	;		; "Return" ; Variable where the ASCII code is returned. The function returns -1 if no ASCII code was found.
	; ~~Stack~~ 1 ~~; Ascii~~ code
	;		;
	; e.g.		; e.g.
	; ${Asc} "a"		; ${Asc} "a" $0 ; returns 97 in $0
	~~; Pop~~ $0 ; returns 65		; ${Asc} "AA" $0 ; returns 65 in $0
	; ${Asc} "bb"
	~~; Pop~~ $0 ; returns 66
	;		;
	!define Asc `!insertmacro ~~AscCall`~~
			!define Asc "!insertmacro Asc"

	!macro ~~AscCall~~ _STRING		!macro Asc _STRING
	; save global registers		; save global registers
	Push $0		Push $0
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	Push $9		Push $9
	; store parameter		; store parameter
	Push `${_STRING}`		Push "${_STRING}"
	Call Asc		Call Asc
	; restore global register		; restore global register
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	StrCmp $0 256 0 Asc.Do		StrCmp $0 256 0 Asc.Do
	StrCpy $0 "-1"		StrCpy $0 "-1"


	Asc.Exit:		Asc.Exit:

Nechai at 20:39, 16 July 2005

2005-07-16T20:39:57Z

â† Older revision		Revision as of 20:39, 16 July 2005
Line 74:		Line 74:
	Asc.Do:		Asc.Do:
	IntFmt $2 %c $0		IntFmt $2 %c $0
	StrCmp $~~1 $2~~ Asc.Exit		System::Call 'kernel32::lstrcmpA(t, t) i(r1,r2) .r3'
			StrCmp $3 "0" Asc.Exit
	IntOp $0 $0 + 1		IntOp $0 $0 + 1
	StrCmp $0 256 0 Asc.Do		StrCmp $0 256 0 Asc.Do
	StrCpy $0 "-1"		StrCpy $0 "-1"


	Asc.Exit:		Asc.Exit:

Nechai at 19:35, 16 July 2005

2005-07-16T19:35:17Z

New page

{{PageAuthor|nechai}}

== Description ==
Returns an Integer representing the character code corresponding to the first letter in a string.

== Syntax ==
${Asc} "String"

"String" ; string argument

Stack 1 ; Ascii code

== Usage ==
<highlight-nsis>
${Asc} "a"
Pop $0 ; returns 65
${Asc} "bb"
Pop $0 ; returns 66
</highlight-nsis>

== The Function ==
<highlight-nsis>
Function Asc
; Returns an Integer representing the character code corresponding to the first letter in a string.
;
; Syntax:
; ${Asc} "String"
;
; "String" ; string argument
;
; Stack 1 ; Ascii code
;
; e.g.
; ${Asc} "a"
; Pop $0 ; returns 65
; ${Asc} "bb"
; Pop $0 ; returns 66
;
!define Asc `!insertmacro AscCall`

!macro AscCall _STRING
; save global registers
Push $0
Push $1
Push $2
Push $3
Push $4
Push $5
Push $6
Push $7
Push $8
Push $9
; store parameter
Push `${_STRING}`
Call Asc
; restore global register
Pop $9
Pop $8
Pop $7
Pop $6
Pop $5
Pop $4
Pop $3
Pop $2
Pop $1
Exch $0
!macroend

; get parameter
Pop $1 ; CHAR
StrCpy $1 $1 1

IntOp $0 0 + 0
Asc.Do:
IntFmt $2 %c $0
StrCmp $1 $2 Asc.Exit
IntOp $0 $0 + 1
StrCmp $0 256 0 Asc.Do
StrCpy $0 "-1"

Asc.Exit:

FunctionEnd
</highlight-nsis>

[[Category:String Functions]]