ok - now I understand. I'm thinking this is going to get a little complicated with the possible differences in the @ID values. It may or may not have parenthesis. Could have only closing parenthesis, so it has to be able to match all different occurrences.

I tried adding in opening/closing parenthesis and it still won't match. I'm not a REGEX expert.

    if ( $tag =~ m/<endnote id=((\d*)([[:alpha:]]*))>/ ) {

[download]

Input could be:

<endnote id=(1)>Text...</endnote>
<endnote id=(2)>Text...</endnote>

<endnote id=1)>Text...</endnote>
<endnote id=2)>Text...</endnote>

<endnote id=1.>Text...</endnote>
<endnote id=2.>Text...</endnote>

<endnote id=1a>Text...</endnote>
<endnote id=2cb>Text...</endnote>

<endnote id=a.1>Text...</endnote>
<endnote id=a.2>Text...</endnote>

etc...

In reply to Re^4: read/write delete duplicates/sort PROBLEM! - Use of uninitialized value in sprintf by VladP
in thread read/write delete duplicates/sort PROBLEM! - Use of uninitialized value in sprintf by VladP

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