- NAME
- SYNOPSIS
- EXPORTS
- DEPENDENCIES
- DESCRIPTION
- PUBLIC INTERFACE

- defang
- http:header
- is_editing

- PACKAGE INTERNALS

- _mk_url
- _elem_attrs
- _mk_image

- AUTHORS
- COPYRIGHT

# NAME

Parse::Template::Web -

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# SYNOPSIS

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# EXPORTS

Nothing exported by default

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# DEPENDENCIES

This module requires these other modules and libraries:

        Data::Format::Nml::Document
        WWW::Misc::Image
        Parse::Template::Directives::ContentEditable
        Error::Logical
        Perl::Module
        Data::Hub::Util
        Parse::Template::BBCode
        WWW::Livesite::Args
        Carp
        Parse::Template::Directives::Color
        Parse::Template::Directives::HTML
        HTML::Entities
        Parse::Template::Directives::JS
        Parse::Template::Directives::URI
        Parse::Template::Directives::Encode

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# DESCRIPTION

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# PUBLIC INTERFACE

## defang

Remove characters that would otherwise cause parser evaluation.

  Also perform lightweight killing of HTML characters: `\`\<'``&>

  This example will not abort:

        use Parse::Template::Web;

  This example will not abort:

        use Data::Hub;

  This example:

        my $p = Parse::Template::Web->new(Data::Hub->new());
        $p->defang('a[#b]c');

  will return:

        abc

  This example:

        my $p = Parse::Template::Web->new(Data::Hub->new());
        my $r = $p->defang(['a[#b]c', 'a<b>c</d>e']);
        join('', @$r);

  will return:

        abcabc/de

## http:header

Add an HTTP header for output

        [#:http:header 'Name' 'Definition']
        [#:http:header 'Name' 'Definition' -override]

  When -override is given, existing headers with the same name are removed.

## is_editing

Is the page being rendered for an authorized editor

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# PACKAGE INTERNALS

## _mk_url

Given a relative path or URI, return an escaped URL for use in HTML

  Spaces and ampersands will be encoded corretly:

        http://www.example.com/a b & c/c?a=b&c=1 2&d=%20;e="q"

  becomes:

        http://www.example.com/a%20b%20&amp;%20c/c?a=b&amp;c=1%202&amp;d=%20&amp;e=%22q%22

## _elem_attrs

Format arguments as element attributes

## _mk_image

Create attributes for an image and possibly a wrapping anchor

  where:

        $src              image url (src attribute)
        %attrs            image attributes which invoke special behavior
          $attrs{src}     image url (src attribute)
          $attrs{resize}  requests the image be resized to WxH/wxh
          $attrs{href}    the image is wrapped in an anchor
          $attrs{target}  that anchor has a target

  options:

        -resize     => $WxH/wxh
        -max_width  => $num
        -max_height => $num
        -min_width  => $num
        -min_height => $num

  Resize format is `WxH/wxh` (read as max-width by max-height over min-width by min-height) in pixels.

        100           width <= 100
        100x          width <= 100
        100x99        width <= 100, height <= 99
        100x99/       width <= 100, height <= 99
        100x99/10     10 <= width <= 100, height <= 99
        100x99/10x    10 <= width <= 100, height <= 99
        100x99/10x9   10 <= width <= 100, 9 <= height <= 99
        /10           10 <= width
        /10x          10 <= width
        /10x9         10 <= width, 9 <= height

  Template options should take precedence over data options so that one may lock-down the flow of the page.

  The Livesite responder for images allows one to specify the resize parameter in the URL:

        http://www.example.com/images/laura.jpg?resize=50x50

  However the server simply resizes the image to the nearest reasonable size, Which means the image tag must include the exact width and height.

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# AUTHORS

        Ryan Gies <ryangies@cpan.org>

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# COPYRIGHT

        Copyright (C) 2014-2016 by Ryan Gies. All rights reserved.
        Copyright (C) 2006-2013 by Livesite Networks, LLC. All rights reserved.
        Copyright (C) 2000-2005 by Ryan Gies. All rights reserved.
        Redistribution and use in source and binary forms, with or without
        modification, are permitted provided that the following conditions are met:
        * Redistributions of source code must retain the above copyright notice,
        this list of conditions and the following disclaimer.
        * The origin of this software must not be misrepresented; you must not
        claim that you wrote the original software. If you use this software in a
        product, an acknowledgment in the product documentation would be
        appreciated but is not required.
        * Altered source versions must be plainly marked as such, and must not be
        misrepresented as being the original software.
        * The name of the author may not be used to endorse or promote products
        derived from this software without specific prior written permission.

        THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
        WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
        MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
        EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
        EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
        OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
        INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
        CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
        IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
        OF SUCH DAMAGE.
        To the best of our knowledge, no patented algorithms have been used. However, we
        do not have the resources to carry out a patent search, and therefore cannot
        give any guarantee of the above statement.

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