FindIt: Simple search for file / directory: Difference between revisions
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(→The Function: Have to push the dir to search in before nextDir, otherwise worst case scenario: opcode errors may result, best case: search broken) |
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{{PageAuthor|Afrow UK}} | |||
== Description == | == Description == | ||
A lot of new people found it hard to understand how to use the other file search functions, so I decided to post my version (which is a modified version of [[user:Kichik|Kichik]]'s). It doesn't require a callback function. It simply | A lot of new people found it hard to understand how to use the other file search functions, so I decided to post my version (which is a modified version of [[user:Kichik|Kichik]]'s). It doesn't require a callback function. It simply finds a file or directory, or it doesn't. | ||
The only downside to using this function though is that if the file that you are locating does not have a unique name, then you could come up with another file or directory path instead! | The only downside to using this function though is that if the file that you are locating does not have a unique name, then you could come up with another file or directory path instead! | ||
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</highlight-nsis> | </highlight-nsis> | ||
'''Note:''' Don't | '''Note:''' Don't put a leading back-stroke (\) on end of "C:\look_in_here" path, else you will get a path like: | ||
"C:\look_in_here\\find_this.txt" | "C:\look_in_here\\find_this.txt" | ||
== The Function == | == The Function == | ||
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Push $R5 | Push $R5 | ||
Push $R6 | Push $R6 | ||
StrCpy $R6 -1 | StrCpy $R6 -1 | ||
StrCpy $R3 1 | StrCpy $R3 1 | ||
Push $R1 | |||
nextDir: | nextDir: | ||
| Line 60: | Line 59: | ||
isDir: | isDir: | ||
IfFileExists "$R1\$R2\*.*" 0 gotoNextFile | IfFileExists "$R1\$R2\*.*" 0 gotoNextFile | ||
IntOp $R3 $R3 + 1 | IntOp $R3 $R3 + 1 | ||
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-Stu | -Stu | ||
[[ | [[Category:Disk, Path & File Functions]] | ||
Latest revision as of 02:02, 13 February 2009
| Author: Afrow UK (talk, contrib) |
Description
A lot of new people found it hard to understand how to use the other file search functions, so I decided to post my version (which is a modified version of Kichik's). It doesn't require a callback function. It simply finds a file or directory, or it doesn't.
The only downside to using this function though is that if the file that you are locating does not have a unique name, then you could come up with another file or directory path instead!
Usage
${FindIt} "C:\look_in_here" "find_this.txt" "$R0" ; At this point; $R0 is path to "find_this.txt" or -1 (not found)
Note: Don't put a leading back-stroke (\) on end of "C:\look_in_here" path, else you will get a path like:
"C:\look_in_here\\find_this.txt"
The Function
!macro FindIt In For Result Push "${In}" Push "${For}" Call FindIt Pop "${Result}" !macroend !define FindIt "!insertmacro FindIt" Function FindIt Exch $R0 Exch Exch $R1 Push $R2 Push $R3 Push $R4 Push $R5 Push $R6 StrCpy $R6 -1 StrCpy $R3 1 Push $R1 nextDir: Pop $R1 IntOp $R3 $R3 - 1 ClearErrors FindFirst $R5 $R2 "$R1\*.*" nextFile: StrCmp $R2 "." gotoNextFile StrCmp $R2 ".." gotoNextFile StrCmp $R2 $R0 0 isDir StrCpy $R6 "$R1\$R2" loop: StrCmp $R3 0 done Pop $R1 IntOp $R3 $R3 - 1 Goto loop isDir: IfFileExists "$R1\$R2\*.*" 0 gotoNextFile IntOp $R3 $R3 + 1 Push "$R1\$R2" gotoNextFile: FindNext $R5 $R2 IfErrors 0 nextFile done: FindClose $R5 StrCmp $R3 0 0 nextDir StrCpy $R0 $R6 Pop $R6 Pop $R5 Pop $R4 Pop $R3 Pop $R2 Pop $R1 Exch $R0 FunctionEnd
-Stu
