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#!/usr/bin/awk -f
BEGIN{
RS="[[:space:]]*</?listitem>[[:space:]]*"
FS="[[:space:]]*<variable name=\"|\">|</variable>\n+"
}
/variable/{
print $9 ";" $3 "@" $6
}

       gensub(r, s, h [, t])   Search the target string t for matches of the regular expression r.  If h is a string beginning  with  g  or  G,
                               then replace all matches of r with s.  Otherwise, h is a number indicating which match of r to replace.  If t is
                               not supplied, $0 is used instead.  Within the replacement text s, the sequence \n, where n is a digit from 1  to
                               9,  may  be  used  to indicate just the text that matched the n’th parenthesized subexpression.  The sequence \0
                               represents the entire matched text, as does the character &.  Unlike sub() and gsub(), the  modified  string  is
                               returned as the result of the function, and the original target string is not changed.
 
       gsub(r, s [, t])        For  each  substring  matching the regular expression r in the string t, substitute the string s, and return the
                               number of substitutions.  If t is not supplied, use $0.  An & in the replacement text is replaced with the  text
                               that  was  actually  matched.  Use \& to get a literal &.  (This must be typed as "\\&"; see GAWK: Effective AWK
                               Programming for a fuller discussion of the rules for &’s and backslashes  in  the  replacement  text  of  sub(),
                               gsub(), and gensub().)