Training, Open Source computer languages
PerlPHPPythonMySQLApache / TomcatTclRubyJavaC and C++LinuxCSS 
Search for:
Home Accessibility Courses Diary The Mouth Forum Resources Site Map About Us Contact
 
For 2023 - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!

I am also active in many other area and still look after a lot of web sites - you can find an index ((here))
How to split a file but not line by line

Posted by carlos (carlos), 18 April 2005
Hello,

I was trying to split one file that contains a table of a database, but i couldn't.    

My file has as a field separator chr(1) and as a "row" separator chr(2).
But the problem is that the content of the last field can contain newline character and so on.


e.g: For the example here I replaced chr(1) into '|' and chr(2) into '%'

The source file
...
50003|KLECZ0003|12.12.2002|MP|[MPID]181519;(LZA)
AA: adi
DERMASN
GGGHHVN%50003|KLECZ0003|05.01.2004|MP|[MPID]278427;(LZA)
AS:dfs
Dear John
regards,
NoName%50004
...


The script
...
open fh, "<SourceFile.txt" or die "Couldn't open file: SourceFile.txt $!";
@Records = split (/%/,<fh>);
print "Records = @Records";
close(fh);

foreach $record (@Records)
{
   ($code,$pat_id,$date,$type,$desc)=split(/\|/,$record);
   print "Description = $desc \n";
}
...


It prints:
Records = 50003|KLECZ0003|12.12.2002|MP|[MPID]181519;(LZA)
Description = [MPID]181519;(LZA)


But what i want to get, is:
[MPID]181519;(LZA)
AA: adi
DERMASN
GGGHHVN



Could you help me on this, please?


Thanks in advance.


Carlos

Posted by admin (Graham Ellis), 18 April 2005
Open the file and read it with

read (FH,$buffer,-s "filename.xxx");

Then

@rows = split(/\x01/,$buffer);
foreach $record(@rows) {
   @fields = split(/\x02/,$record);
}



This page is a thread posted to the opentalk forum at www.opentalk.org.uk and archived here for reference. To jump to the archive index please follow this link.

You can Add a comment or ranking to this page

© WELL HOUSE CONSULTANTS LTD., 2023: Well House Manor • 48 Spa Road • Melksham, Wiltshire • United Kingdom • SN12 7NY
PH: 01144 1225 708225 • FAX: 01144 1225 793803 • EMAIL: info@wellho.net • WEB: http://www.wellho.net • SKYPE: wellho