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 Post subject: Read Previous line
PostPosted: September 24th, 2020, 10:22 am 
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Joined: May 16th, 2008, 4:50 pm
Posts: 368
Location: Berghem The Netherlands
Opus: Opus Pro 9.75
OS: Windows 10
System: `HP
In one of my projects i use the option to read the next line, and go to the first line. Is there an easy option to make a previous line command?

Kind Regards,
Ad Mulders

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 Post subject: Re: Read Previous line
PostPosted: September 28th, 2020, 9:20 pm 
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Godlike
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Joined: March 21st, 2007, 10:44 am
Posts: 3188
Location: UK
Opus: Evolution
If you only ever need to go back one step, you could store the current variable in a previous variable and then read the new line into the current variable.

If you need to step backwards through multiple lines, then you're looking at using an array to hold the file contents and navigating that instead.

</mack>

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 Post subject: Re: Read Previous line
PostPosted: October 1st, 2020, 12:44 pm 
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Joined: May 16th, 2008, 4:50 pm
Posts: 368
Location: Berghem The Netherlands
Opus: Opus Pro 9.75
OS: Windows 10
System: `HP
Hi Mack,

It would be best to step through the lines so the array option is the best. But then i need a script i think?
Or is it possible with the pre made options?

Kind Regards,
Ad

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 Post subject: Re: Read Previous line
PostPosted: October 2nd, 2020, 11:20 am 
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Joined: March 21st, 2007, 10:44 am
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Location: UK
Opus: Evolution
Yes, scripting would be needed. The following example IMP should give you an idea:

https://interaktiv.co.uk/?scene=downloa ... shop.co.uk

</mack>

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 Post subject: Re: Read Previous line
PostPosted: October 2nd, 2020, 3:26 pm 
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Joined: May 16th, 2008, 4:50 pm
Posts: 368
Location: Berghem The Netherlands
Opus: Opus Pro 9.75
OS: Windows 10
System: `HP
Thanks Mack, the example works great. Now i have to see how to implement it in my application

Kind regards, Ad

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http://www.csnmedia.nl


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 Post subject: Re: Read Previous line
PostPosted: August 27th, 2021, 10:30 am 
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Joined: May 16th, 2008, 4:50 pm
Posts: 368
Location: Berghem The Netherlands
Opus: Opus Pro 9.75
OS: Windows 10
System: `HP
Hi Mack,

I use the file reader script and that works great. Is there a way to enter a number to skip
direct to that line?

Kind regards
Ad

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 Post subject: Re: Read Previous line
PostPosted: August 30th, 2021, 10:01 am 
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Joined: March 21st, 2007, 10:44 am
Posts: 3188
Location: UK
Opus: Evolution
Yes, you need to set the myCounter to the index position you need. To do this from the actions window choose:

Programming > Variables > Set Variable - then select myCounter in the drop-down list AND select the Number radio button and enter the value (index) to jump to.



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_________________
When you have explored all avenues of possibilities, what ever remains, how ever improbable, must be the answer.

Interactive Solutions for Business & Education
Learn Anywhere. Learn Anytime.

www.interaktiv.co.uk
+44 (0) 1395 548057


For this message mackavi has been thanked by : Ad Mulders


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