Get last directory path part: Difference between revisions
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{{PageAuthor|Afrow UK}} | |||
== Description == | == Description == | ||
This script will get the last part of a directory | This script will get the last part of a string after a specified character. Useful to get file extensions, last file name or last directory part. | ||
== Usage == | == Usage == | ||
<highlight-nsis> | <highlight-nsis> | ||
Push "C:\program files\geoffrey\files" | Push "C:\program files\geoffrey\files" | ||
Call | Push "\" | ||
Call GetAfterChar | |||
Pop $R0 | Pop $R0 | ||
</highlight-nsis> | </highlight-nsis> | ||
$R0 is now "files" | $R0 is now "files" | ||
Push "." instead of "\" to get a file extension or perhaps "/" for URL. | |||
The return value is empty "" if the input char was not found. | |||
The | |||
== The Function == | == The Function == | ||
<highlight-nsis> | <highlight-nsis> | ||
Function | Function GetAfterChar | ||
Exch $0 ; | Exch $0 ; chop char | ||
Exch | |||
Exch $1 ; input string | |||
Push $2 | Push $2 | ||
StrCpy $ | Push $3 | ||
StrCpy $2 0 | |||
loop: | loop: | ||
IntOp $ | IntOp $2 $2 - 1 | ||
StrCpy $ | StrCpy $3 $1 1 $2 | ||
StrCmp $ | StrCmp $3 "" 0 +3 | ||
StrCmp $ | StrCpy $0 "" | ||
Goto exit2 | |||
StrCmp $3 $0 exit1 | |||
Goto loop | Goto loop | ||
exit1: | exit1: | ||
IntOp $ | IntOp $2 $2 + 1 | ||
StrCpy $0 $ | StrCpy $0 $1 "" $2 | ||
exit2: | exit2: | ||
Pop $3 | |||
Pop $2 | Pop $2 | ||
Pop $1 | Pop $1 | ||
Exch $0 | Exch $0 ; output | ||
FunctionEnd | FunctionEnd | ||
</highlight-nsis> | </highlight-nsis> | ||
Original written by [[user:kichik|KiCHiK]] (GetFileName) | |||
Modified for character input by me (GetAfterChar). | |||
(I also wrote a similar script, but this one is better) | (I also wrote a similar script, but this one is better) | ||
- | -Stu | ||
[[Category:Disk, Path & File Functions]] | |||
Latest revision as of 11:28, 7 September 2005
| Author: Afrow UK (talk, contrib) |
Description
This script will get the last part of a string after a specified character. Useful to get file extensions, last file name or last directory part.
Usage
Push "C:\program files\geoffrey\files" Push "\" Call GetAfterChar Pop $R0
$R0 is now "files" Push "." instead of "\" to get a file extension or perhaps "/" for URL.
The return value is empty "" if the input char was not found.
The Function
Function GetAfterChar Exch $0 ; chop char Exch Exch $1 ; input string Push $2 Push $3 StrCpy $2 0 loop: IntOp $2 $2 - 1 StrCpy $3 $1 1 $2 StrCmp $3 "" 0 +3 StrCpy $0 "" Goto exit2 StrCmp $3 $0 exit1 Goto loop exit1: IntOp $2 $2 + 1 StrCpy $0 $1 "" $2 exit2: Pop $3 Pop $2 Pop $1 Exch $0 ; output FunctionEnd
Original written by KiCHiK (GetFileName) Modified for character input by me (GetAfterChar).
(I also wrote a similar script, but this one is better)
-Stu
