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DarkBASIC Professional Discussion / File command issue?

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xSpadez
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Joined: 11th Apr 2012
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Posted: 23rd Apr 2012 03:06
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Hello,

Whilst reviewing my knowledge of the FILE commands and writing a small demo I just noticed (Or may have missed) that OPEN TO WRITE only works if the file DOESN'T exist?!?! In that case, how would you open an already created file (from the past) and write MORE data to it without overwriting the previous strings/data in the file?

Thanks,

xSpadez

xSpadez - Like a baws
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Andrew_Neale
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Posted: 23rd Apr 2012 12:34
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As far as I'm aware this isn't possible with core DBP. You would have to read the original file into temporary variables, delete the original file and then write it from scratch with your amendments.


Previously TEH_CODERER.
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Attila
FPSC Reloaded TGC Backer
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Posted: 23rd Apr 2012 13:06 Edited at: 23rd Apr 2012 13:14
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DB does not provide an "open to append" command.

But you can open the 'old' file and although open the new file read the old file and write it the new one and then append your data.

a.e.

- Filename$ is the name of the existing file (mydata.dat)




Using the code code, you can easily create a function to append to a file
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IanM
Retired Moderator
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Posted: 23rd Apr 2012 15:14
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... or you can use the free replacements in my plug-in set. They're faster too.

Get the latest Matrix1Utility plug-ins (11-SEPT-2011)
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xSpadez
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Posted: 23rd Apr 2012 19:26
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Quote: "... or you can use the free replacements in my plug-in set. They're faster too.
"


Ok I'll just go with that. Thanks!

Btw the reason was I am making a editor and if theres an error I had it write to a dump file :p


Thanks again

xSpadez - Like a baws
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