Name

nullselect — split input on \0 (null) characters and return first non-empty string

DESCRIPTION

The filter splits input on \0 (null) characters and returns the first non-empty string found.

The filter is suitable for retrieving values out of HTML Combo boxes.

EXAMPLES

No examples are available at this time. We do consider this a problem and will try to supply some.

NOTES

For more information on Perl Regular Expressions, pattern matching and character classes, see perlre(1).

AVAILABILITY

nullselect is available in Interchange versions:

4.6.0-5.7.0 (git-head)

SOURCE

Interchange 5.7.0:

Source: code/Filter/nullselect.filter
Lines: 21


# Copyright 2002-2007 Interchange Development Group and others
# Copyright 1996-2002 Red Hat, Inc.
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.  See the LICENSE file for details.
# 
# $Id: nullselect.filter,v 1.4 2007-03-30 23:40:45 pajamian Exp $

CodeDef nullselect Filter
CodeDef nullselect Description Combo box
CodeDef nullselect Routine <<EOR
sub {
my @some = split /\0+/, shift;
for(@some) {
  return $_ if length $_;
}
return '';
}
EOR

AUTHORS

Interchange Development Group

SEE ALSO

checkbox(7ic)

DocBook! Interchange!