Run exe and capture output from pascal-script editor?

Elektro · 2016-02-23 13:28

Hi

Thanks to Den4b answering all questions, I encountered that the RegEx motor of Renamer's script-editor has some lmitations, and I need to bypass them.

Someone helped me to design the regular expression pattern below written in PHP.

^(?P<artist>.+?(?=\s-\s))          # artist with pos. lookahead
\s-\s                              # space - space
(?P<title>.+?(?=(?:\(?Feat\.)|$))  # title with pos. lookahead 
\(?                                # optional open parenthesis
    (?P<artist2>Feat\.[^()\n]+)?   # artist2 with Feat. before
\)?                                # optional closing parenthesis
(?P<subtitle>.+)?$                 # optional subtitle

https://regex101.com/r/iQ2aG4/1

I currentlly develop in .Net environment, my intention is to translate the pattern to C#-syntax, develop a very simple CLI app that takes a string to perform the regex replacement and return/print the resulting string, then find a way to use that app from Renamer.

My question is, from the script-editor I could run that external CLI app?.

If yes, how I could run the app and manage their output/return value from the script-editor?.

Last edited by Elektro (2016-02-23 13:41)

den4b · 2016-02-23 17:31

Wiki function reference:
ReNamer:Pascal_Script:Functions#Process_Execution

Sample usage:

var
  Output: String;
begin
  if ExecConsoleApp('tool.exe', Output) = 0 then
    FileName := Output + FileName;
end.

Elektro · 2016-02-24 09:33

@den4b

Really thankyou!

Its time for me to take a long read at your wiki to avoid these kind of questions. sorry anout that!.

Have a nice day.

Elektro · 2016-02-26 17:26

I need some help...

Which is the working directory when a script is launched?.

In line:

if ExecConsoleApp('tool.exe', Output) = 0 then

I need to write a relative (not absolute not environment variables) path, starting from a known Renamer installation folder, like this:

if ExecConsoleApp('.\Tools\App.exe', regexconOutput) = 0 then

On where the imaginary working dir starts at "C:\Program Files (x86)\ReNamer\" so I'm pointing to "C:\Program Files (x86)\ReNamer\Tools"

EDIT: I seen the GetApplicationPath function, there is not a function that justs returns the directory path without the filename?.

Also the double-quotes could be escaped or I'm forced to do ugly appends?.

if ExecConsoleApp( '"' + 'C:\Program Files (x86)\ReNamer\Tools\RegexCon.exe' + '"' ) = 0 then

Last edited by Elektro (2016-02-26 17:41)

Elektro · 2016-02-26 17:45

Done:

if ExecConsoleApp('"'+ WideExtractFileDir(GetApplicationPath()) + '\Tools\RegexCon.exe' + ...

However, I'm not sure if this will take much execution time and maybe exists a proper solution than calling two funcs. (my script will run on +400.000 files)

Last edited by Elektro (2016-02-26 17:45)

den4b · 2016-02-27 20:08

Elektro wrote:

Which is the working directory when a script is launched?

The application that you execute via ExecConsoleApp will have the same current working directory as the calling application (i.e. ReNamer). Normally this would be ReNamer's root directory, unless you change.

Elektro wrote:

Also the double-quotes could be escaped or I'm forced to do ugly appends?

You can create a simple function to enquote parameters, for example:

function Enquote(const Parameter: String): String;
begin
  Result := '"' + Parameter + '"';
end;

Note, this is a simple example! A proper escape function should also escape contained quotes.

Elektro wrote:

I'm not sure if this will take much execution time and maybe exists a proper solution than calling two funcs. (my script will run on +400.000 files)

Calling an external process for every file is going to be the longest operation there. There is no way around it.

den4b Forum

#1 2016-02-23 13:28

Run exe and capture output from pascal-script editor?

#2 2016-02-23 17:31

Re: Run exe and capture output from pascal-script editor?

#3 2016-02-24 09:33

Re: Run exe and capture output from pascal-script editor?

#4 2016-02-26 17:26

Re: Run exe and capture output from pascal-script editor?

#5 2016-02-26 17:45

Re: Run exe and capture output from pascal-script editor?

#6 2016-02-27 20:08

Re: Run exe and capture output from pascal-script editor?

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