I meant large file that can be read into memory. 5GB is too much for me. Given
J is not lazy and I think you problem is diffcult to realize without loop like
K&R c style
p=. 0
while. do.
line=. ''
NB. todo: detect EOF
while. LF~: c=. 1!:11 file,p,1 do. line=. line,c [ p=. >:p end.
NB. process one line
end.
Yoel Jacobsen wrote:
Even for regex, I don't see how to avoid manually reading the file in
chunks
which is too imperative style for me. Again, consider the Python example:
for line in file.readlines():
match_object = re.search("(<= csn )\w+", line)
if match_object:
process(match_object.group(0))
The regex can be precompiled as well.
This works on a 5GB file as well as on small files since readlines() take
care for reading the file in chunks.
Is there a way to do it a consice way in J?
Yoel
On 5/14/06, bill lam <[EMAIL PROTECTED]> wrote:
If the file is really large, I prefer regex instead.
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
