PascalScript to run one time only and get current file index

Stefan · 2013-01-21 21:22

I want to add an PascalScript as first, or as last rule.

This PascalScript should be executed only one time (not one time for every file, but one time for an whole preview/renaming job).

I would use this for initial (e.g.: get list of files) and finalizing (e.g.: delete folder) tasks.

To implement this, i imagine a keyword inside the script would work?
If found {RunOneTimeOnly} on first line this feature would be enabled.

(better of course if this could be on any line, to leave the first line for comments)

.

SafetyCar · 2013-01-26 18:53

Once Denis talked about implementing a function that could read and change names of not only the file being processed but any other.
I don't know where I read it, and I don't get to find about it...

It was something more or less like (I'm inventing this) GetApplicationFileName(Index); SetApplicattionFileName(Index); GetIndex(); GetTotalNumberOfFiles();

If we had this we could do "If (GetIndex() = GetTotalNumberOfFiles()) then"

But I don't know if they are still on Denis plans.

---------
EDIT: Maybe the GetIndex() was not on the plans but it can be done just with a counter to know where we are.

Last edited by SafetyCar (2013-01-26 18:56)

den4b · 2013-01-27 00:19

The internal design doesn't let me easily and cleanly add this functionality without a bit of rework.

However, we can simulate this behavior using something like GetCurrentFileIndex and GetTotalNumberOfFiles functions, as suggested.

I'll add these functions.

Stefan · 2013-01-27 01:12

I think that will work pretty fine. Thank you all for your support.

Top most script in rules list:

begin
 if (GetCurrentFileIndex = 1 ) then
 begin
 //initializing code here, executed only once
 end;
end.

Very last script in rules list:

begin
 if (GetCurrentFileIndex = GetTotalNumberOfFiles) then
 begin
  //Cleaning up code here, executed only once
 end;
end.

Also useful for:

FileName := IntToStr(GetCurrentFileIndex) +' of ' + IntToStr(GetTotalNumberOfFiles) + ' ' + FileName;

Pad := length(GetTotalNumberOfFiles);

That reminds me to modulo. Can we use this too?
if (modulo(GetCurrentFileIndex, 2) = 0) then
skip;

if (modulo(GetCurrentFileIndex, 10) = 0) then
counter := 0;

den4b · 2013-01-27 01:20

I've added GetCurrentFileIndex and GetTotalNumberOfFiles functions and info on the Wiki: ReNamer:Pascal_Script:Functions#Application

Please test!

den4b · 2013-01-27 01:26

Regarding modulo, you can use DivMod function or the actual mod operation, e.g.:

begin
  if (GetCurrentFileIndex mod 2) = 0 then
    FileName := FileName + ' (even)'
  else
    FileName := FileName + ' (odd)';
end.

There is not "skip" functionality yet.

Stefan · 2013-01-27 03:05

beta 27. Jan. 2013

first tests works as indented, good work.

Initialize only once:

begin
 if(GetCurrentFileIndex=1)then
 begin
   if(GetTotalNumberOfFiles > 1000)then
   begin
     if(DialogYesNo('Do you wanna start?')=False) then 
        ShowMessage('quit')
    else 
        ShowMessage('continue')
    end;
 end;
end.

Add text "<file No.> of <fileS>"

var
  pad:integer;
  num:string;
  
begin
  // Add your code here
  pad := length(IntToStr(GetTotalNumberOfFiles));
  num := IntToStr(GetCurrentFileIndex);
  while length(num) < pad do num := '0'+num;
  
  FileName := num + ' of ' + IntToStr(GetTotalNumberOfFiles) + ' ' + FileName;
end.

Differ between every second file:

 
begin
  if (GetCurrentFileIndex mod 2) = 0 then
    FileName := WideExtractBaseName(FileName) + ' (even)'+ WideExtractFileExt(FileName)
  else
    FileName := WideExtractBaseName(FileName) + ' (odd)' + WideExtractFileExt(FileName);
end.

Serialize every four files from 1 to 4:

var
 i:integer;
 s:string;
 
begin
  s:=IntToStr(i+1);
  FileName := WideExtractBaseName(FileName) + '_' + s + WideExtractFileExt(FileName)
  inc(i);
  if(i mod 4) = 0 then
    i := 0;
end.

Clean up at the end on the last file:
>> BUT this dialog is shown before the last file is shown in the NewName column.
>> So i guess i can't delete the folder yet. Have to test this later the day.

begin
 if(GetCurrentFileIndex=GetTotalNumberOfFiles)then
   ShowMessage(IntToStr(GetCurrentFileIndex)
     + ' out of  '+IntToStr(GetTotalNumberOfFiles)+' done!'+#10+#10
     + 'It''s save now to delete the old folder...');
end.

Proof of concept:

German.txt		01 of 14 German (odd)_1.txt
Croatian.txt		02 of 14 Croatian (even)_2.txt
Bulgarian.txt		03 of 14 Bulgarian (odd)_3.txt
Russian.txt		04 of 14 Russian (even)_4.txt
Turkish.txt		05 of 14 Turkish (odd)_1.txt
French.txt		06 of 14 French (even)_2.txt
Polish.txt		07 of 14 Polish (odd)_3.txt
Russian (Latin).txt	08 of 14 Russian (Latin) (even)_4.txt
Russian (Alt).txt	09 of 14 Russian (Alt) (odd)_1.txt
Serbian (Cyrillic).txt	10 of 14 Serbian (Cyrillic) (even)_2.txt
Serbian (Latin).txt	11 of 14 Serbian (Latin) (odd)_3.txt
Czech.txt		12 of 14 Czech (even)_4.txt
Romanian.txt		13 of 14 Romanian (odd)_1.txt
Ukrainian.txt		14 of 14 Ukrainian (even)_2.txt

SafetyCar · 2013-01-27 11:33

Nice, just before downloading I started to think about a possibility of conflict with the unchecked files. But there have not been such problems, the total_files are the total_checked and there has been no problem nor with first-file nor with last-file.

So, it looks like very solid to me.

Stefan · 2013-01-27 15:12

SafetyCar wrote:

the total_files are the total_checked

Just for reference, since i asked myself is this "selected only" is good or not,
here is the code to get the total amount of files of an folder (not only the selected onces):

var
 FilesArray:TStringsArray;
 TotalFilesOnFolder:String;
 
begin
 if(GetCurrentFileIndex=1)then
 begin
   //WideScanDirForFiles(Dir, Files, Recursive, IncludeHidden, IncludeSystem, Mask);
   WideScanDirForFiles(WideExtractFilePath(FilePath), FilesArray, false, false, false, '*');
   TotalFilesOnFolder := IntToStr(length(FilesArray));
   ShowMessage('Files in folder: '+ TotalFilesOnFolder + #10 
       + 'Selected files: ' + IntToStr(GetTotalNumberOfFiles));
 end;
end.

Result:

---------------------------
      ReNamer
---------------------------
   Files in folder: 14
   Selected files: 11
---------------------------
       OK   
---------------------------

?

So should not GetTotalNumberOfFiles

be called something like
GetTotalNumberOfSelFiles
GetTotalNumberOfSelectedFiles
GetNumberOfSelectedFiles

?

Just to be clear and prevent from being mistaken?

.

SafetyCar · 2013-01-27 18:15

Stefan wrote:

So should not GetTotalNumberOfFiles
be called something like
GetTotalNumberOfSelFiles
GetTotalNumberOfSelectedFiles
GetNumberOfSelectedFiles
?
Just to be clear and prevent from being mistaken?

That last one looks good to me, and yes, probably is better to have the name as closest to the reality as possible.

den4b Forum

#1 2013-01-21 21:22

PascalScript to run one time only and get current file index

#2 2013-01-26 18:53

Re: PascalScript to run one time only and get current file index

#3 2013-01-27 00:19

Re: PascalScript to run one time only and get current file index

#4 2013-01-27 01:12

Re: PascalScript to run one time only and get current file index

#5 2013-01-27 01:20

Re: PascalScript to run one time only and get current file index

#6 2013-01-27 01:26

Re: PascalScript to run one time only and get current file index

#7 2013-01-27 03:05

Re: PascalScript to run one time only and get current file index

#8 2013-01-27 11:33

Re: PascalScript to run one time only and get current file index

#9 2013-01-27 15:12

Re: PascalScript to run one time only and get current file index

#10 2013-01-27 18:15

Re: PascalScript to run one time only and get current file index

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