Anders: Call function directly

2018-07-04T13:35:24Z

Call function directly

â† Older revision		Revision as of 13:35, 4 July 2018
Line 17:		Line 17:
	<highlight-nsis>		<highlight-nsis>
	Push "String"		Push "String"
	~~!insertmacro~~ StrTrimNewLines ~~Func ""~~		Call StrTrimNewLines
	Pop $ResultVar		Pop $ResultVar
	</highlight-nsis>		</highlight-nsis>

Anders: Rewritten version that works in uninstallers

2018-07-04T13:32:47Z

Rewritten version that works in uninstallers

Show changes

Deguix: Corrected link to LogicLib header file.

2005-12-03T06:19:15Z

Corrected link to LogicLib header file.

â† Older revision		Revision as of 06:19, 3 December 2005
Line 3:		Line 3:
	== Description ==		== Description ==

	'''Requires:''' [[LogicLib]].		'''Requires:''' [[LogicLib header file]].

	'''Version:''' 2.0.1.		'''Version:''' 2.0.1.

Deguix: Version: 2.0.

2005-07-10T07:27:52Z

Version: 2.0.

New page

{{PageAuthor|deguix}}

== Description ==

'''Requires:''' [[LogicLib]].

'''Version:''' 2.0.1.

This function removes unnecessary new lines at end of a string.

== How To Use ==

=== Syntax ===

<highlight-nsis>
${StrTrimNewLines} "ResultVar" "String"
</highlight-nsis>
or
<highlight-nsis>
Push "String"
Call StrTrimNewLines
Pop "ResultVar"
</highlight-nsis>

=== Parameters ===

; ResultVar
: Variable where the string without the new line characters at the end is returned. If there is no new line characters, the return value is the same as specified in ''String'' parameter.

; String
: String where the new line characters at its end are removed.

=== Example ===

<highlight-nsis>
${StrTrimNewLines} $0 "This is just an example$\r$\n$\r$\n"
;$0 = "This is just an example"
</highlight-nsis>

== Function Code ==

<highlight-nsis>
!define StrTrimNewLines "!insertmacro StrTrimNewLines"

!macro StrTrimNewLines ResultVar String
Push "${String}"
Call StrTrimNewLines
Pop "${ResultVar}"
!macroend

Function StrTrimNewLines
/*After this point:
------------------------------------------
$R0 = String (input)
$R1 = TrimCounter (temp)
$R2 = Temp (temp)*/

;Get input from user
Exch $R0
Push $R1
Push $R2

;Initialize trim counter
StrCpy $R1 0

loop:
;Subtract to get "String"'s last characters
IntOp $R1 $R1 - 1

;Verify if they are either $\r or $\n
StrCpy $R2 $R0 1 $R1
${If} $R2 == `$\r`
${OrIf} $R2 == `$\n`
Goto loop
${EndIf}

;Trim characters (if needed)
IntOp $R1 $R1 + 1
${If} $R1 < 0
StrCpy $R0 $R0 $R1
${EndIf}

/*After this point:
------------------------------------------
$R0 = ResultVar (output)*/

;Return output to user
Pop $R2
Pop $R1
Exch $R0
FunctionEnd
</highlight-nsis>

== Credits ==
Version 2.x - Diego Pedroso ([[User:deguix|deguix]]).<br>
Version 1.x - Ximon Eighteen ([[User:sunjammer|sunjammer]]) / Diego Pedroso ([[User:deguix|deguix]]).

[[Category:String Functions]]

StrTrimNewLines - Revision history

Anders: Call function directly

Anders: Rewritten version that works in uninstallers

Deguix: Corrected link to LogicLib header file.

Deguix: Version: 2.0.