mhonarc-users

Re: marc-search

1997-05-22 11:56:13
[mhonarc list cc'd so that others are aware of a forthcoming bug fix
for marc-search]

Earl tells me that the <PRE></PRE> tags that surround message
bodies are not guaranteed to appear at the beginning of the line.
In fact, he says, they may not be present at all.  If one of your
messages has the </PRE>  tag somewhere else, then, it won't be
spotted by marc-search, which will happily go on reading from an
exhuasted filehandle (hence the undefined values & loop).

Solution (soon to be implemented by me, though maybe not today):
change the pattern match in Search.pm where the message body is
retrieved.

This part:
while (<FH>)
            {
              # Messages are contained between <PRE></PRE> tags
              next unless (/^<PRE>/);
              $_ = <FH>;
              while ($_ !~ m,^</PRE>,)

should be changed so that MhonArc's special comment tags are used,
since these are guaranteed to be present and at the beginning of the
line.

replace /^<PRE>/ with /^<!--X-Body-of-Message-->/
and m,^</PRE>, with /^<!--X-MsgBody-End-->/

Honestly, I just learned about this yesterday and just haven't had a
minute to spare.  Apologies,

Eric

: 
: Eric, installed marc-search.cgi but encountered an undocumented problem.
: Installation did not encounter any problems, and a list can be accessed
: (see http://plue.sedac.ciesin.org/plue/hyperlists/agis-l/). The cgi
: program also works fine, at first glance.  Upon a search the client
: receives correct data for correct search terms and then stops receiving 
: data.  However, behind the screens, the perl program has disappeared 
: into a loop and causes the httpd daemon to dump endless error records
: in the www log files. See below.  
: 
: All parameters of our system are listed below, including results of
: installationa and configurable parameters.  The "Search" link for the
: invocation of the marc-search screen is provided ot the maillist.html
: file via a <LiTemplate></LiTemplate> -rcfile so that a search link
: appears next to _each_ message and user doe snot have to scroll to 
: the top of screen to find the link.  Other than that, I can not
: follow a thread of where exactly this error may occur.
: 
: Any ideas?
: 
: -Henk
: 
: --------------------------------------------------------------------------
: This is perl, version 5.003 with EMBED
:       built under sunos
:       + suidperl security patch
: 
: /ufs/sedac/pkg/lib/perl5/site_perl
: -r--r--r--  1 bin      bin         26810 May 17 03:40 CGI_Lite.pm
: -r--r--r--  1 bin      bin         10945 May 16 13:48 Marc.pm
: drwxr-xr-x  2 bin      bin           512 May 22 09:51 Marc/
: -r--r--r--  1 bin      bin          6411 Apr  4 15:06 Marc/Form.pm
: -r--r--r--  1 bin      bin         13782 Apr  4 15:06 Marc/Search.pm
: 
: /ufs/sedac/pkg/httpd/cgi-bin
: -r-xr-xr-x  1 bin      bin         10345 May 22 09:56 marc-search.cgi*
: 
: ## Configurable options 
: my $server = 'http://plue.sedac.ciesin.org';
: my $help = $server . '/marc-search.html';
: my $doc_root = '/ufs/sedac';
: my $script = $server . '/cgi-bin/marc-search.cgi';
: my $usersubdir = 'public_html'; 
: ## External Modules to load 
: use lib '/ufs/sedac/pkg/lib/perl5/site_perl';
: use CGI_Lite;  # Substitute other CGI libraries if need be 
: use strict;
: require 5.002;
: 
: /var/adm/www
: -rw-r--r--  1 root     staff    62948408 May 22 09:58 plue_error.log
: -------------------------------------------------------------------------
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 62.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 83.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 76.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 69.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 62.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 83.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 76.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 69.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 62.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 83.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 76.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 69.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 62.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 83.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 76.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 69.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 62.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 83.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 76.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 69.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: Use of uninitialized value at /ufs/sedac/pkg/httpd/cgi-bin/Marc/Search.pm
: line 241, <FH> chunk 233.
: 
: ...on and on... for another 150,000 lines till Perl program killed.  The
: last line (chunk 233) never changes anymore.
--
Eric D. Friedman
friedman(_at_)uci(_dot_)edu

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