Re: Reading a Unicode text file
- From: tom@xxxxxxxxxxxxxx (Tom Phoenix)
- Date: Thu, 16 Feb 2006 10:45:09 -0800
On 2/16/06, Baskaran Sankaran <baskaran@xxxxxxxxxxxxx> wrote:
Here is the new code:
open(F1, "<:utf8", $file1) || die("Can not find file $file1\n");
open(F2, "<:utf8", $file2) || die("Can not find file $file2\n");
open(O, ">:utf8", $ARGV[2]);
Why no die on the third open? I believe that you can use $!, even on
Win32, to get some clue as to why the open failed. (But it didn't
fail, since you've got some output.)
binmode(O, ":utf8");
This probably shouldn't happen each time through the loop; binmode()
should generally be called soon after open(), before any actual I/O is
done. Does it fix anything to call binmode() just once?
And, here I am trying to read two txt files (having equal no. of lines)
and print the contents in a single file given in the command prompt. The
files are in Unicode. I am using ActivePerl v5.8.7 in windows.
Even though the files are "Unicode", it's possible that one or both
has some non-printing control characters (or something even more
esoteric) that is causing trouble. If nothing else works, you may need
to examine the file contents (maybe with the help of a Unicode table)
to find out what's going on.
This is where it would help to have some files to work with, because I
can't reproduce a bug on my machine; which is to say: Your code works
for me (with different hardware, different OS, different input
files...). If you can't share the actual file contents (proprietary?),
perhaps you could share some mock files that exhibit the bug.
Cut-and-paste some small pieces from the real files, redact or alter
as needed, and test them to be sure they still show the bug.
Your code is pretty clean. Other than the things I've mentioned, and
things that perl should warn you about, I don't see any reason it
should be giving you trouble. Have you tried using the debugger? It
shouldn't take long to single-step until you see where something goes
wrong.
Good luck with it!
--Tom Phoenix
Stonehenge Perl Training
.
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