Shell Programming and Scripting

sed 's/>/>
/g'

<a><b>Bee</b><c>Sea</c><d><e>Eeeh!</e></d></a>

<?xml version="1.0"?>
<a>
  <b>Bee</b>
  <c>Sea</c>
  <d>
    <e>Eeeh!</e>
  </d>
</a>

sed 's/>/>\n/g' file
<a>
<b>
Bee</b>
<c>
Sea</c>
<d>
<e>
Eeeh!</e>
</d>
</a>

$ cat test.xml

<?xml version="1.0"?>
<a q="r" z="w t f"><b><c><d>e</d>qwerqwe</c></b></a>


$ cat pretty.awk

BEGIN { ORS="\n" }
$1 ~ /[^ \r\n\t]/ {
        # Strip leading and trailing whitespace from cdata
        gsub(/[ \r\n\t]+$/,"",$2);
        gsub(/^[ \r\n\t]+/,"",$2);

        if(CTAG) {
                print "<" $1 ">";
                if($2) {
                        for(N=0; N<DEP; N++) printf("\t");
                        print $2;
                }
                for(N=1; N<DEP; N++) printf("\t");
        } else {
                print "";
                for(N=1; N<DEP; N++) printf("\t");
                printf("<%s>%s", $1, $2);
        }
}

$ awk -f yanx.awk -f pretty.awk test.xml

<?xml version="1.0"?>
<a q="r" z="w t f">
        <b>
                <c>
                        <d>e</d>
                        qwerqwe
                </c>
        </b>
</a>

$