Get extension of file: Difference between revisions
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== Description == | == Description == | ||
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[[Category:Disk, Path & File Functions]] | |||
Latest revision as of 15:35, 11 February 2012
| Author: opher (talk, contrib) |
Description
This is based on the work of Afrow UK. This more accuretly reports the extention: For path "C:\some dir\some file with no extention"
Afrow UK's implementation will return the original string as "extention"
For path "C:\Installation.CD\some file with no extention"
Afrow UK's implementation will return "CD\some file with no extention" as extention.
In both cases this function will return "" (empty) as extention.
Usage
Push "C:\some path\filename.extention" Call GetFileExt Pop $R0 ; $R0 = "extention"
The Function
Function GetFileExt Exch $0 ; input string Push $1 Push $2 StrCpy $1 0 loop: IntOp $1 $1 - 1 StrCpy $2 $0 1 $1 StrCmp $2 "" empty StrCmp $2 "\" empty StrCmp $2 "." found Goto loop empty: StrCpy $0 "" goto exit found: IntOp $1 $1 + 1 StrCpy $0 $0 "" $1 exit: Pop $2 Pop $1 Exch $0 FunctionEnd
