CGI::FormBuilder::UtilUser Contributed Perl DocumentaCGI::FormBuilder::Util(3)NAMECGI::FormBuilder::Util - Utility functions for FormBuilder
SYNOPSIS
use CGI::FormBuilder::Util;
belch "Badness";
puke "Egads";
debug 2, "Debug message for level 2";
DESCRIPTION
This module exports some common utility functions for FormBuilder.
These functions are intended for internal use, however I must admit
that, from time to time, I just import this module and use some of the
routines directly (like "htmltag()" to generate HTML).
USEFUL FUNCTIONS
These can be used directly and are somewhat useful. Don't tell anyone I
said that, though.
debug($level, $string)
This prints out the given string only if $DEBUG is greater than the
$level specified. For example:
$CGI::FormBuilder::Util::DEBUG = 1;
debug 1, "this is printed";
debug 2, "but not this one";
A newline is automatically included, so don't provide one of your own.
belch($string)
A modified "warn" that prints out a better message with a newline
added.
puke($string)
A modified "die" that prints out a useful message.
escapeurl($string)
Returns a properly escaped string suitable for including in URL params.
escapehtml($string)
Returns an HTML-escaped string suitable for embedding in HTML tags.
escapejs($string)
Returns a string suitable for including in JavaScript. Minimal
processing.
htmltag($name, %attr)
This generates an XHTML-compliant tag for the name $name based on the
%attr specified. For example:
my $table = htmltag('table', cellpadding => 1, border => 0);
No routines are provided to close tags; you must manually print a
closing "</table>" tag.
htmlattr($name, %attr)
This cleans any internal FormBuilder attributes from the specified tag.
It is automatically called by "htmltag()".
toname($string)
This is responsible for the auto-naming functionality of FormBuilder.
Since you know Perl, it's easiest to just show what it does:
$name =~ s!\.\w+$!!; # lose trailing ".suf"
$name =~ s![^a-zA-Z0-9.-/]+! !g; # strip non-alpha chars
$name =~ s!\b(\w)!\u$1!g; # convert _ to space/upper
This results in something like "cgi_script.pl" becoming "Cgi Script".
tovar($string)
Turns a string into a variable name. Basically just strips "\W", and
prefixes "fb_" on the front of it.
ismember($el, @array)
Returns true if $el is in @array
USELESS FUNCTIONS
These are totally useless outside of FormBuilder internals.
autodata($ref)
This dereferences $ref and returns the underlying data. For example:
%hash = autodata($hashref);
@array = autodata($arrayref);
arghash(@_)
This returns a hash of options passed into a sub:
sub field {
my $self = shift;
my %opt = arghash(@_);
}
It will return a hashref in scalar context.
arglist(@_)
This returns a list of args passed into a sub:
sub value {
my $self = shift;
$self->{value} = arglist(@_);
It will return an arrayref in scalar context.
indent($num)
A simple sub that returns 4 spaces x $num. Used to indent code.
optalign(\@opt)
This returns the options specified as an array of arrayrefs, which is
what FormBuilder expects internally.
optsort($sortref, @opt)
This sorts and returns the options based on $sortref. It expects @opt
to be in the format returned by "optalign()". The $sortref spec can be
the string "NAME", "NUM", or a reference to a &sub which takes pairs of
values to compare.
optval($opt)
This takes one of the elements of @opt and returns it split up.
Useless outside of FormBuilder.
rearrange($ref, $name)
Rearranges arguments designed to be per-field from the global
inheritor.
basename
Returns the script name or $0 hacked up to the first dir
SEE ALSO
CGI::FormBuilder
REVISION
$Id: Util.pm 100 2007-03-02 18:13:13Z nwiger $
AUTHOR
Copyright (c) 2000-2006 Nate Wiger <nate@wiger.org>. All Rights
Reserved.
This module is free software; you may copy this under the terms of the
GNU General Public License, or the Artistic License, copies of which
should have accompanied your Perl kit.
perl v5.14.1 2007-03-02 CGI::FormBuilder::Util(3)
