Re: Reading a (BIG) text file one line at a time

[Frank D. Engel, Jr.]

Bug #2431 does not exist.  Did you mean 2341 by any chance?
On Nov 23, 2004, at 12:23 AM, MisterX wrote:
I have a freeware stack with all the read and write files examples with
buffered reading and buffer block positioning/navigation included... 
There's
also more features like file info, hex or text display among others...

This is much much faster than reading line by line and wont abuse 
RAM...

Unfortunately, all my development is blocked by bug 2431. If you vote 
for
it, I will make this stack available again tonite.

cheers
Xavier, still blocked
--

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Gordon Tillman
Sent: Monday, November 22, 2004 21:14
To: Rob Beynon; How to use Revolution
Subject: Re: Reading a (BIG) text file one line at a time
Hi Rob,
On Nov 22, 2004, at 14:05, Rob Beynon wrote:
Greetings all,
I have failed to discover how to read a file one line at a
time. The
file is a text file, and is large (84MB) but I need to
process it on a
line by line basis, rather than read the whole file into a
field (not
even sure I can!).
I thought of
read from myFile until EOF for one line
but that doesn't work
Help would be greatly appreciated here! Would you be good enough to
mail to my work address, as I have yet to work out how to
access the
list effectively
Once you open your file you can use:
read from file "your_file" for 1 line
The line that is read is put into the "it" variable When you
hit the end of the file then "the result" will no longer be
empty.  It will have "eof" in it.
For example, assuming the file tFile is open:
repeat forever
     read from file tFile for 1 line
     put it into tLine
     put the result into tRes
     if tRes is not empty then exit repeat
     -- do something with tLine
end repeat
close file tFile
--gordon
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-----------------------------------------------------------
Frank D. Engel, Jr.  <[EMAIL PROTECTED]>
$ ln -s /usr/share/kjvbible /usr/manual
$ true | cat /usr/manual | grep "John 3:16"
John 3:16 For God so loved the world, that he gave his only begotten 
Son, that whosoever believeth in him should not perish, but have 
everlasting life.
$


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