Hello,
I am opening an XML doc that looks something like:
===========================
<?xml version="1.0" encoding="UTF-8"?>  <---This will disappear
<project>
  <dependencies>
	<dependency>
      <groupId>foo</groupId>
      <artifactId>bar</artifactId>
      <version>1.0</version>
      <type>jar</type>
    </dependency>
  </dependencies>
</project>
===========================

On this file I run something like this:
===========================
  my $xp = XML::XPath->new(filename => $filename);
  $xp->setNodeText("/project/dependencies/dependencyversion='1.0'/version", 2.0);
  open (OUTF, ">$filename");
  print OUTF XML::XPath::XMLParser::as_string($xp->findnodes('/'));
===========================

I end up with what I want:
===========================
<project>
  <dependencies>
	<dependency>
      <groupId>foo</groupId>
      <artifactId>bar</artifactId>
      <version>2.0</version>       <---- Only change
      <type>jar</type>
    </dependency>
  </dependencies>
</project>
===========================

BUT the xml prolog is gone.

I checked the XML::XPATH docs for a method to grab and store the header,
but did not find it. 

...or is there some other technique that I am missing?

Any pointers appreciated,

Chris

In reply to XPATH as_string losing prolog by XRZ1138

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.