CODEWITHSUNDEEP
nsis
hypheni
hypheni

Reputation: 816

Last character checking in a string

I'm trying to write the script in elegant way. i.e. write a piece of function or macro which will check a string for last character '\' and if found will add it to "sample" else it will add "\sample" and return it.

Anyone with any samples ?

Upvotes: 0

Views: 572

Answers (1)

Anders
Anders

Reputation: 101666

You can get the last character of a string with StrCpy $2 "$0" 1 -1.

Function PathAppend
Exch $0
Exch 
Exch $1
Push $2
StrCpy $2 $1 1 -1
StrCmp $2 "\" +2 +1
    StrCpy $0 "\$0"
StrCpy $1 "$1$0"
Pop $2
Exch
Pop $0
Exch $1
FunctionEnd

Section
Push "c:\foo\bar"
Push "baz"
Call PathAppend
Pop $9
DetailPrint $9
SectionEnd

Note that the default directory set by InstallDir already has special handling if you want to append the application name to the directory.

Upvotes: 1

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