Split strings - Revision history

Lyra: /* The Macro */

2007-12-19T14:18:59Z

The Macro

â† Older revision		Revision as of 14:18, 19 December 2007
Line 59:		Line 59:

	; salvo in R1 l'indice di inizio della sottostringa di interesse		; salvo in R1 l'indice di inizio della sottostringa di interesse
	; storing in R1 the index beginning the ~~substring~~		; storing in R1 the index beginning the sub-string
	IntOp $R1 $R0 + 1		IntOp $R1 $R0 + 1

	; cerco il " successivo, che indica la fine della stringa di interesse		; cerco il " successivo, che indica la fine della stringa di interesse
	; searching '"' character ending the ~~substring~~		; searching '"' character ending the sub-string
	findEnd_loop_${PART}:		findEnd_loop_${PART}:
	IntOp $R0 $R0 + 1 ; i++		IntOp $R0 $R0 + 1 ; i++
Line 71:		Line 71:

	; R0 = indice di fine della sottostringa di interesse		; R0 = indice di fine della sottostringa di interesse
	; R0 = the index ending the ~~substring~~		; R0 = the index ending the sub-string
	IntOp $R0 $R0 - $R1		IntOp $R0 $R0 - $R1
	; salvo in R0 la lunghezza della sottostringa di interesse		; salvo in R0 la lunghezza della sottostringa di interesse
	; storing in R0 the ~~substring~~'s length		; storing in R0 the sub-string's length
	StrCpy $R0 ${INPUT} $R0 $R1		StrCpy $R0 ${INPUT} $R0 $R1
	Goto done_${PART}		Goto done_${PART}

Lyra at 14:18, 19 December 2007

2007-12-19T14:18:01Z

â† Older revision		Revision as of 14:18, 19 December 2007
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	; R0 = index of current position in the string		; R0 = index of current position in the string
	StrCpy $R0 -1		StrCpy $R0 -1
	; R1 = indice del carattere " da trovare		; R1 = indice del carattere " da trovare
	; R1 = index of '"' character to be found		; R1 = index of '"' character to be found
	IntOp $R1 ${PART} * 2		IntOp $R1 ${PART} * 2
Line 47:		Line 47:

	; cerco il " che indica l'inizio della sottostringa di interesse		; cerco il " che indica l'inizio della sottostringa di interesse
	; searching '"' character beginning the ~~substring~~		; searching '"' character beginning the sub-string
	findStart_loop_${PART}:		findStart_loop_${PART}:

Line 58:		Line 58:
	IntCmp $R1 0 0 0 findStart_loop_${PART}		IntCmp $R1 0 0 0 findStart_loop_${PART}

	; salvo in R1 l'indice di inizio della sottostringa di interesse		; salvo in R1 l'indice di inizio della sottostringa di interesse
	; storing in R1 the index beginning the substring		; storing in R1 the index beginning the substring
	IntOp $R1 $R0 + 1		IntOp $R1 $R0 + 1
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	; R0 = the index ending the substring		; R0 = the index ending the substring
	IntOp $R0 $R0 - $R1		IntOp $R0 $R0 - $R1
	; salvo in R0 la lunghezza della sottostringa di interesse ; storing in R0 the substring's length		; salvo in R0 la lunghezza della sottostringa di interesse
			; storing in R0 the substring's length
	StrCpy $R0 ${INPUT} $R0 $R1		StrCpy $R0 ${INPUT} $R0 $R1
	Goto done_${PART}		Goto done_${PART}

Lyra at 14:13, 19 December 2007

2007-12-19T14:13:48Z

â† Older revision		Revision as of 14:13, 19 December 2007
Line 90:		Line 90:


	Note: You cannot use multiple !insertmacro ~~SPLIT_STRING~~ within the same function/section using the same part.		Note: You cannot use multiple !insertmacro GET_STRING_TOKEN within the same function/section using the same part.
	Doing so will stop your script compiling.		Doing so will stop your script compiling.
	e.g.		e.g.

Lyra at 14:13, 19 December 2007

2007-12-19T14:13:04Z

â† Older revision		Revision as of 14:13, 19 December 2007
Line 89:		Line 89:
	</highlight-nsis>		</highlight-nsis>

	~~May be helpful!~~

	Note: You cannot use multiple !insertmacro SPLIT_STRING within the same function/section using the same part.		Note: You cannot use multiple !insertmacro SPLIT_STRING within the same function/section using the same part.

Lyra: /* The Macro */

2007-12-19T14:12:30Z

The Macro

â† Older revision		Revision as of 14:12, 19 December 2007
Line 70:		Line 70:
	StrCmp $R2 '"' 0 findEnd_loop_${PART}		StrCmp $R2 '"' 0 findEnd_loop_${PART}

	; R0 = indice di fine della sottostringa di interesse ~~Ã¨ in R0~~		; R0 = indice di fine della sottostringa di interesse
	; R0 = the index ending the substring		; R0 = the index ending the substring
	IntOp $R0 $R0 - $R1		IntOp $R0 $R0 - $R1

Lyra at 14:05, 19 December 2007

2007-12-19T14:05:27Z

New page

{{PageAuthor|Lyra IT}}

== Description ==
This script (macro) is an improved version of SPLIT_STRING macro [[Save_on_variables]]. It will allow you to split up a string into separate sub-strings for use. Differently from SPLIT_STRING, it works with more than 2 sub-strings.
It can be useful to get single parameters from a command line.
The format of the string is:
<highlight-nsis>
"string1" "string2"..."stringN"
</highlight-nsis>
The macro will then split it up to use one piece of the string (e.g. stringN)

== Usage ==
<highlight-nsis>
!insertmacro GET_STRING_TOKEN $0 2 ;$0 = input string, 2 = get 2nd sub-string
Pop $1
</highlight-nsis>

== Usage Example ==
<highlight-nsis>
; in $0 is stored the string

StrCpy $1 0
top:
IntOp $1 $1 + 1
!insertmacro GET_STRING_TOKEN $0 $1
Pop $2
StrCmp $2 "error" go_ahead 0
MessageBox MB_OK $2
Goto top
go_ahead:
</highlight-nsis>

== The Macro ==
<highlight-nsis>
!macro GET_STRING_TOKEN INPUT PART
Push $R0
Push $R1
Push $R2

; R0 = indice di scorrimento stringa
; R0 = index of current position in the string
StrCpy $R0 -1
; R1 = indice del carattere " da trovare
; R1 = index of '"' character to be found
IntOp $R1 ${PART} * 2
IntOp $R1 $R1 - 1

; cerco il " che indica l'inizio della sottostringa di interesse
; searching '"' character beginning the substring
findStart_loop_${PART}:

IntOp $R0 $R0 + 1 ; i++
StrCpy $R2 ${INPUT} 1 $R0 ; getting next character
StrCmp $R2 "" error_${PART}
StrCmp $R2 '"' 0 findStart_loop_${PART}

IntOp $R1 $R1 - 1
IntCmp $R1 0 0 0 findStart_loop_${PART}

; salvo in R1 l'indice di inizio della sottostringa di interesse
; storing in R1 the index beginning the substring
IntOp $R1 $R0 + 1

; cerco il " successivo, che indica la fine della stringa di interesse
; searching '"' character ending the substring
findEnd_loop_${PART}:
IntOp $R0 $R0 + 1 ; i++
StrCpy $R2 ${INPUT} 1 $R0 ; getting next character
StrCmp $R2 "" error_${PART}
StrCmp $R2 '"' 0 findEnd_loop_${PART}

; R0 = indice di fine della sottostringa di interesse Ã¨ in R0
; R0 = the index ending the substring
IntOp $R0 $R0 - $R1
; salvo in R0 la lunghezza della sottostringa di interesse ; storing in R0 the substring's length
StrCpy $R0 ${INPUT} $R0 $R1
Goto done_${PART}

error_${PART}:
StrCpy $R0 error

done_${PART}:
Pop $R2
Pop $R1
Exch $R0
!macroend
</highlight-nsis>

May be helpful!

Note: You cannot use multiple !insertmacro SPLIT_STRING within the same function/section using the same part.
Doing so will stop your script compiling.
e.g.
<highlight-nsis>
Function ThisFunctionIsFine
!insertmacro GET_STRING_TOKEN $0 1
!insertmacro GET_STRING_TOKEN $0 2
FunctionEnd

Function ThisFunctionIs'''NOT'''Fine
!insertmacro GET_STRING_TOKEN $0 1
!insertmacro GET_STRING_TOKEN $0 1
FunctionEnd
</highlight-nsis>

-Lyra

[[Category:String Functions]]