Get vertical space of INI file value - Revision history

Deguix: Mentioned the unit of measurement "lines".

2005-06-30T13:27:26Z

Mentioned the unit of measurement "lines".

â† Older revision		Revision as of 13:27, 30 June 2005
Line 3:		Line 3:
	== Description ==		== Description ==

	This function was written for [[User:Angus_Leeming\|Angus Leeming]]. It finds out how much vertical space ~~(new~~ lines~~) a~~ INI file value takes up.		This function was written for [[User:Angus_Leeming\|Angus Leeming]]. It finds out how much vertical space in lines an INI file value takes up.

	== Usage ==		== Usage ==
Line 23:		Line 23:

	teh</highlight-nsis>		teh</highlight-nsis>
	'''$R0''' is now ''5''.		'''$R0''' is now ''5'' lines.

	== Note ==		== Note ==

	File can use TrimNewLines if you <highlight-nsis>!define UseTrimNewLines</highlight-nsis> at the top of the Function.		File can use [[Trim newlines\|TrimNewLines]] if you <highlight-nsis>!define UseTrimNewLines</highlight-nsis> at the top of the Function.
	Otherwise, it will simply use '''$\r$\n''' as a new line.		Otherwise, it will simply use '''$\r$\n''' as a new line.

Deguix: Added page author.

2005-06-30T11:53:55Z

Added page author.

â† Older revision		Revision as of 11:53, 30 June 2005
Line 1:		Line 1:
			{{PageAuthor\|Afrow UK}}

	== Description ==		== Description ==

Afrow UK at 12:21, 29 June 2005

2005-06-29T12:21:56Z

â† Older revision		Revision as of 12:21, 29 June 2005
Line 106:		Line 106:

	-Stu		-Stu

			[[Category:INI, CSV & Registry Functions]]

Afrow UK at 12:21, 29 June 2005

2005-06-29T12:21:21Z

New page

== Description ==

This function was written for [[User:Angus_Leeming|Angus Leeming]]. It finds out how much vertical space (new lines) a INI file value takes up.

== Usage ==

<highlight-nsis>
${GetValueVertSpace} $R0 "path\to\file.ini" "section_name" "key_name"
</highlight-nsis>

== Example ==

<highlight-nsis>
${GetValueVertSpace} $R0 "$INSTDIR\temp.ini" "blah" "meh"
</highlight-nsis>

Value of ''meh'' is:
<highlight-nsis>ja
bah
he

teh</highlight-nsis>
'''$R0''' is now ''5''.

== Note ==

File can use TrimNewLines if you <highlight-nsis>!define UseTrimNewLines</highlight-nsis> at the top of the Function.
Otherwise, it will simply use '''$\r$\n''' as a new line.

== The Function ==

<highlight-nsis>
#!define UseTrimNewLines
Function GetValueVertSpace
Exch $R0 ;key name
Exch
Exch $R1 ;section
Exch 2
Exch $R2 ;ini file
Exch 2
Push $R3
Push $R4

FileOpen $R3 $R2 r

FindSection:
ClearErrors
FileRead $R3 $R2
IfErrors DoneRead

!ifdef UseTrimNewLines
Push $R2
Call TrimnewLines
Pop $R2
StrCmp $R2 "[$R1]" 0 FindSection
!undef UseTrimNewLines
!else
StrCmp $R2 "[$R1]$\r$\n" 0 FindSection
!endif

StrLen $R1 $R0
IntOp $R1 $R1 + 1

FindKey:
ClearErrors
FileRead $R3 $R2
IfErrors DoneRead

StrCpy $R2 $R2 $R1
StrCmp $R2 "$R0=" 0 FindKey

StrCpy $R0 1

CountLines:
ClearErrors
FileRead $R3 $R2
IfErrors DoneRead

StrCpy $R1 -1
IntOp $R1 $R1 + 1
StrCpy $R4 $R2 1 $R1
StrCmp $R4 "" 0 +3
IntOp $R0 $R0 + 1
Goto CountLines
StrCmp $R4 = 0 -5

DoneRead:

FileClose $R3

Pop $R4
Pop $R3
Pop $R2
Pop $R1
Exch $R0
FunctionEnd
!macro GetValueVertSpace Var File Section Key
Push "${File}"
Push "${Section}"
Push "${Key}"
Call GetValueVertSpace
Pop "${Var}"
!macroend
!define GetValueVertSpace "!insertmacro GetValueVertSpace"
</highlight-nsis>

-Stu