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#147382 - 2005-09-08 07:06 PM enhance readline() to return the whole buffer at once
Lonkero Lonkero KiX Master Guru Registered: 2001-06-05 Posts: 22346 Loc: OK	... or make a readfile() command for it. instead of looping after the update one could simply use: $myFile=readline(1,1) to return the whole file at once. _________________________ ! download KiXnet
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#147383 - 2005-09-09 09:56 AM

Re: enhance readline() to return the whole buffer at once

Richard H. Offline

Administrator

Registered: 2000-01-24
Posts: 4946
Loc: Leatherhead, Surrey, UK

I'd prefer raw file i/o as a solution something like
Code:


$fdFile=fOpen("c:\temp\file.txt",2+8)   ; Open for reading (in binary mode)
$=fSeek($fdFile,-1)                     ; Fast forward to end of file
$lFileSize=fTell($fdFile)               ; How big is file?
$=fRewind($fdFile)                      ; Back to start of file
$FileData=fRead($fdFile,$lFileSize)     ; Read entire file into buffer

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#147384 - 2005-09-09 10:51 AM Re: enhance readline() to return the whole buffer at once
Lonkero Lonkero KiX Master Guru Registered: 2001-06-05 Posts: 22346 Loc: OK	oh, I would too. but raw I/O is not gonna happen. I mean, as far as we know, it's not even on the todo-list. _________________________ ! download KiXnet
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#147385 - 2005-09-28 01:19 AM Re: enhance readline() to return the whole buffer at once
iffy iffy Starting to like KiXtart Registered: 2005-05-29 Posts: 149 Loc: The Netherlands	Hey, I want this raw I/O stuff too, I've had to use kludges to get around the lack of support binary reads and seeks.. And make the fRead with a 3rd parameter specificing the size of the buffer in case you only want xxx bytes from the seek point. Please... pretty please
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#147386 - 2005-09-28 03:56 AM Re: enhance readline() to return the whole buffer at once
Howard Bullock Howard Bullock KiX Supporter Registered: 2000-09-15 Posts: 5809 Loc: Harrisburg, PA USA	What do you guys think about having the flexibility of setting the end-of-line character for READLINE? That way we could have a great deal of flexibility in reading partial or complete files into a variable. We could set the line separator to "" and read the entire file. Or we could set the EOL value to some other value to split lines during the READLINE. _________________________ Home page: http://www.kixhelp.com/hb/
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#147387 - 2005-09-28 10:24 AM Re: enhance readline() to return the whole buffer at once
Richard H. Richard H. Administrator Registered: 2000-01-24 Posts: 4946 Loc: Leatherhead, Surrey, UK	Tricky. You can't get some characters into strings, so it wouldn't work in all cases. A common string delimiter in file data is Chr(0), and you can't get that into a string to supply as a parameter. You could pass just the numeric value I guess, but that would make passing multi-character delimitors difficult. To be useful you'd probably want to have multiple alternate values - space, tab, CR and LF are the most obvious selection. If would be nice to be able to differentiate between CRLF and CR delimited files though.
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#147388 - 2005-09-28 10:29 AM Re: enhance readline() to return the whole buffer at once
Richard H. Richard H. Administrator Registered: 2000-01-24 Posts: 4946 Loc: Leatherhead, Surrey, UK	Quote: And make the fRead with a 3rd parameter specificing the size of the buffer in case you only want xxx bytes from the seek point. Please... pretty please No need for a third parameter. The second parameter in the pseudo-code is the buffer size. As this topic is about reading the entire file I set the read size to the size of the file in the example, but it could be any value.
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#147389 - 2005-09-28 02:01 PM Re: enhance readline() to return the whole buffer at once
iffy iffy Starting to like KiXtart Registered: 2005-05-29 Posts: 149 Loc: The Netherlands	And if you are going to enhance do it right so I suggested not to limit yourself to only read the entire file but optionally specify a buffer in case you only want a part of a (binary) file. A standard function in most other languages.
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#147390 - 2005-09-28 03:07 PM Re: enhance readline() to return the whole buffer at once
Richard H. Richard H. Administrator Registered: 2000-01-24 Posts: 4946 Loc: Leatherhead, Surrey, UK	Quote: And if you are going to enhance do it right so I suggested not to limit yourself to only read the entire file but optionally specify a buffer in case you only want a part of a (binary) file. A standard function in most other languages. At the risk of my repeating myself that is exactly what it does. Re-read the pseudo-code, and if you still don't understand how it does partial file reads send me a PM and I'll explain off-line.
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#147391 - 2005-09-28 08:56 PM Re: enhance readline() to return the whole buffer at once
iffy iffy Starting to like KiXtart Registered: 2005-05-29 Posts: 149 Loc: The Netherlands	You're right of course Richard, ignore my previous babbling. I completely misread the pseudo code for some reason.
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#147392 - 2005-09-28 09:20 PM Re: enhance readline() to return the whole buffer at once
Lonkero Lonkero KiX Master Guru Registered: 2001-06-05 Posts: 22346 Loc: OK	well, there are 2 totally different suggestions and I think iffy was flying on the wings of the original one where Richie took it a bit further. _________________________ ! download KiXnet
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