James, (et.al.)
see comments below.
-----Original Message-----
From: James Edward Gray II [mailto:[EMAIL PROTECTED]]
Sent: Thursday, October 10, 2002 3:36 PM
To: Diethorn, Robert - MBDC
Cc: '[EMAIL PROTECTED]'
Subject: Re: Newbie - reading from files in nested while loops
On Thursday, October 10, 2002, at 02:28 PM, Diethorn, Robert - MBDC
wrote:
>
> Ding!
Progress is good. Don't worry, we'll get it there, eventually.
>
> Many thanks James. I was so fixated on the second loop I failed to
> see that the undef really occurred in the return to the first.
> Unfortunately, I think I need to retain the second loop. I need to
> process the file $schemafile one line at a time, as every line of that
> file
> contains exactly one XML tag. Most of the "work" in the script is
> actually
> accomplished by the statement $newelement =~ s/>a/>$data[$count]/; --
> within that second loop.
Okay, help me understand a little better then. Are we going to process
every line in SCHEMAIN for every line in DATAIN? This would make the
output contain x copies of the entire SCHEMAIN file, where x is the
number of lines in DATAIN. That what your aiming for?
....exactly. Every line in DATAIN is a discrete record from my DB. Each line
in SCHEMAIN is an XML tag, and I'm attempting to merge the two to create an
XML file. I think I can show it best graphically:
DATAIN: (~ is the field separator)
xxx~yyy~zzz
aaa~bbb~ccc
etc.
SCHEMAIN:
<tag>a</tag>
<tag2>a</tag2>
<tag3>a</tag3>
etc.
Output:
<tag>xxx</tag>
<tag2>yyy</tag2>
<tag3>zzz</tag3>
<tag>aaa</tag>
<tag2>bbb</tag2>
<tag3>ccc</tag3>
etc.
By the way, I did also try slurping the entire first file (DATAIN)
into a multi-dimensional array and then parsing with a for loop around the
second while loop, but had no luck with that either.
> Is there any was I can set a marker for $_ in the original while
> loop to avoid the undef and return to process the next line? Or am I
> stuck
> with slurping the first file into an array in its entirety and
> processing
> only the second file with a loop?
You can, but I don't think this is needed. Let me see what your above
answer is first, before we go here.
James
Rob
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