I have a similar interest.  Appears that any environment variable, if set 
prior to invoking htsearch, is retained and can be used in output templates.  

In Perl, the setting can be accomplished by assignment to $ENV{VARNAME}, 
where VARNAME is a user-chosen name.  This has to be done just prior to 
calling htsearch; then mention VARNAME in the output template.  (Need to be 
sure that $ENV{QUERY_STRING} is preserved and passed on to htsearch; in Perl 
(5.005_03), appears that "use CGI" has this effect). 

In a message dated 11/14/00 4:20:26 AM US Mountain Standard Time, 
[EMAIL PROTECTED] writes:

<< Hi,
 as I saw in the htsearch reference there are several standard variables
 to use in template files for htsearch. I would like to use more
 entry-specific variables that can be parsed by htsearch. Are there any
 options or possibilities for htdig and htsearch to save additional
 information which can be read out later with self-defined variables?
 
 Thanks in advance
 Oliver Hoogvliet >>

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