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Full Discussion: awk Script to parse a XML tag
Top Forums Shell Programming and Scripting awk Script to parse a XML tag Post 302733125 by agama on Monday 19th of November 2012 09:21:48 PM
Old 11-19-2012
Quote:
Originally Posted by asirohi
Hi Agama,

Thanks for the reply, but that does not work. The script that you provided just removes the <> from the line and displays
property name="agent" value="/var/tmp/root/eclipse" /
as output.

-Adi
How were you testing it? if you were using echo to echo it and pipe it into awk, were you using double quotes round the whole string? That won't work. Use single quotes:

Code:
echo '<property name="agent" value="/var/tmp/root/eclipse" />' | awk '
    /property name=/ {
        gsub( ".*value=\"", "" );
        gsub( "\".*", "" );
        print;
    }
' RS="[<>]"

If you're testing some other way, then I'd be curious what your version of awk is. Works for me with gnu awk 4.0; output from above is
Code:
/var/tmp/root/eclipse

 

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LEARN ABOUT MOJAVE

xml::parser::style::tree5.18

Parser::Style::Tree(3)					User Contributed Perl Documentation				    Parser::Style::Tree(3)

NAME

       XML::Parser::Style::Tree

SYNOPSIS

	 use XML::Parser;
	 my $p = XML::Parser->new(Style => 'Tree');
	 my $tree = $p->parsefile('foo.xml');

DESCRIPTION

       This module implements XML::Parser's Tree style parser.

       When parsing a document, "parse()" will return a parse tree for the document. Each node in the tree takes the form of a tag, content pair.
       Text nodes are represented with a pseudo-tag of "0" and the string that is their content. For elements, the content is an array reference.
       The first item in the array is a (possibly empty) hash reference containing attributes. The remainder of the array is a sequence of tag-
       content pairs representing the content of the element.

       So for example the result of parsing:

	 <foo><head id="a">Hello <em>there</em></head><bar>Howdy<ref/></bar>do</foo>

       would be:
		    Tag   Content
	 ==================================================================
	 [foo, [{}, head, [{id => "a"}, 0, "Hello ",  em, [{}, 0, "there"]],
		     bar, [	    {}, 0, "Howdy",  ref, [{}]],
		       0, "do"
	       ]
	 ]

       The root document "foo", has 3 children: a "head" element, a "bar" element and the text "do". After the empty attribute hash, these are
       represented in it's contents by 3 tag-content pairs.

perl v5.18.2							    2011-05-24						    Parser::Style::Tree(3)
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