CGI::FormBuilder::Util(3pm)

1CGI::FormBuilder::Util(U3s)er Contributed Perl DocumentatCiGoIn::FormBuilder::Util(3)
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NAME

6       CGI::FormBuilder::Util - Utility functions for FormBuilder
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SYNOPSIS

9           use CGI::FormBuilder::Util;
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11           belch "Badness";
12           puke "Egads";
13           debug 2, "Debug message for level 2";
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DESCRIPTION

16       This module exports some common utility functions for FormBuilder.
17       These functions are intended for internal use, however I must admit
18       that, from time to time, I just import this module and use some of the
19       routines directly (like "htmltag()" to generate HTML).
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USEFUL FUNCTIONS

22       These can be used directly and are somewhat useful. Don't tell anyone I
23       said that, though.
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25   debug($level, $string)
26       This prints out the given string only if $DEBUG is greater than the
27       $level specified. For example:
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29           $CGI::FormBuilder::Util::DEBUG = 1;
30           debug 1, "this is printed";
31           debug 2, "but not this one";
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33       A newline is automatically included, so don't provide one of your own.
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35   belch($string)
36       A modified "warn" that prints out a better message with a newline
37       added.
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39   puke($string)
40       A modified "die" that prints out a useful message.
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42   escapeurl($string)
43       Returns a properly escaped string suitable for including in URL params.
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45   escapehtml($string)
46       Returns an HTML-escaped string suitable for embedding in HTML tags.
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48   escapejs($string)
49       Returns a string suitable for including in JavaScript. Minimal
50       processing.
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52   htmltag($name, %attr)
53       This generates an XHTML-compliant tag for the name $name based on the
54       %attr specified. For example:
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56           my $table = htmltag('table', cellpadding => 1, border => 0);
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58       No routines are provided to close tags; you must manually print a
59       closing "</table>" tag.
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61   htmlattr($name, %attr)
62       This cleans any internal FormBuilder attributes from the specified tag.
63       It is automatically called by "htmltag()".
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65   toname($string)
66       This is responsible for the auto-naming functionality of FormBuilder.
67       Since you know Perl, it's easiest to just show what it does:
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69           $name =~ s!\.\w+$!!;                # lose trailing ".suf"
70           $name =~ s![^a-zA-Z0-9.-/]+! !g;    # strip non-alpha chars
71           $name =~ s!\b(\w)!\u$1!g;           # convert _ to space/upper
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73       This results in something like "cgi_script.pl" becoming "Cgi Script".
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75   tovar($string)
76       Turns a string into a variable name. Basically just strips "\W", and
77       prefixes "fb_" on the front of it.
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79   ismember($el, @array)
80       Returns true if $el is in @array
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USELESS FUNCTIONS

83       These are totally useless outside of FormBuilder internals.
84
85   autodata($ref)
86       This dereferences $ref and returns the underlying data. For example:
87
88           %hash  = autodata($hashref);
89           @array = autodata($arrayref);
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91   arghash(@_)
92       This returns a hash of options passed into a sub:
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94           sub field {
95               my $self = shift;
96               my %opt  = arghash(@_);
97           }
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99       It will return a hashref in scalar context.
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101   arglist(@_)
102       This returns a list of args passed into a sub:
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104           sub value {
105               my $self = shift;
106               $self->{value} = arglist(@_);
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108       It will return an arrayref in scalar context.
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110   indent($num)
111       A simple sub that returns 4 spaces x $num. Used to indent code.
112
113   optalign(\@opt)
114       This returns the options specified as an array of arrayrefs, which is
115       what FormBuilder expects internally.
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117   optsort($sortref, @opt)
118       This sorts and returns the options based on $sortref. It expects @opt
119       to be in the format returned by "optalign()". The $sortref spec can be
120       the string "NAME", "NUM", or a reference to a &sub which takes pairs of
121       values to compare.
122
123   optval($opt)
124       This takes one of the elements of @opt and returns it split up.
125       Useless outside of FormBuilder.
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127   rearrange($ref, $name)
128       Rearranges arguments designed to be per-field from the global
129       inheritor.
130
131   basename
132       Returns the script name or $0 hacked up to the first dir
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REVISION

138       $Id: Util.pm 100 2007-03-02 18:13:13Z nwiger $
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AUTHOR

141       Copyright (c) Nate Wiger <http://nateware.com>. All Rights Reserved.
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143       This module is free software; you may copy this under the terms of the
144       GNU General Public License, or the Artistic License, copies of which
145       should have accompanied your Perl kit.
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149perl v5.36.0                      2022-07-22         CGI::FormBuilder::Util(3)