I'm trying to use the following code to change some xml:

$xml = '<funcCall>
<funcName>write</funcName>
<rhsValue>crlf</rhsValue>
<symConstant>loading</symConstant>
<symConstant>| |</symConstant>
<symConstant>lemmas</symConstant>
<symConstant>| |</symConstant>
<symConstant>for</symConstant>
<symConstant>| |</symConstant>
<variable>&lt;lx&gt;</variable>
<symConstant>| |</symConstant>
<symConstant>onto</symConstant>
<symConstant>| |</symConstant>
<variable>&lt;lms&gt;</variable>
</funcCall>';
$xml =~ 
    s&
        <funcCall>.
        <funcName>write</funcName>.
        <rhsValue>crlf</rhsValue>
        (.<(?:symConstant|variable)>[^<]*</(?:symConstant|variable)>)+
+.
        </funcCall>
    &
        my $text;
        foreach my $expr (1..$#-) {
            $text .= ${$expr};
        }
        $text =~ s#<rhsValue>crlf</rhsValue>#\\n#;
        $text =~ s#</?symConstant>##sg;
        $text =~ s#</?variable>##sg;
        $text =~ s#.\| \|.# #sg;
        "<write string=\"$text\"/>";
    &xse;
    
print $xml;

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I want "<write string="loading lemmas for <lx> onto <lms>"/>" but am getting "<write string=" <lms>"/>".

I don't understand why, but the @- only has one element. I know the match is fine because when I print $& I can see that the ()+ matched several items. Any suggestions?

In reply to regex replace using position loop by nglenn

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