<?php
require_once 'HTMLPurifier/ChildDef/StrictBlockquote.php';
require_once 'HTMLPurifier/TagTransform/Simple.php';
require_once 'HTMLPurifier/TagTransform/Center.php';
require_once 'HTMLPurifier/TagTransform/Font.php';
require_once 'HTMLPurifier/AttrTransform/Lang.php';
require_once 'HTMLPurifier/AttrTransform/BgColor.php';
require_once 'HTMLPurifier/AttrTransform/BoolToCSS.php';
require_once 'HTMLPurifier/AttrTransform/Border.php';
require_once 'HTMLPurifier/AttrTransform/Name.php';
require_once 'HTMLPurifier/AttrTransform/Length.php';
require_once 'HTMLPurifier/AttrTransform/ImgSpace.php';
require_once 'HTMLPurifier/AttrTransform/EnumToCSS.php';
/**
* Proprietary module that transforms deprecated elements into Strict
* HTML (see HTML 4.01 and XHTML 1.0) when possible.
*/
class HTMLPurifier_HTMLModule_TransformToStrict extends HTMLPurifier_HTMLModule
{
var $name = 'TransformToStrict';
var $attr_collections = array(
'Lang' => array()
);
function HTMLPurifier_HTMLModule_TransformToStrict() {
// behavior with transformations when there's another CSS property
// working on it is interesting: the CSS will *always* override
// the deprecated attribute, whereas an inline CSS declaration will
// override the corresponding declaration in, say, an external
// stylesheet. This behavior won't affect most people, but it
// does represent an operational difference we CANNOT fix.
// == deprecated tag transforms ===================================
$this->info_tag_transform['font'] = new HTMLPurifier_TagTransform_Font();
$this->info_tag_transform['menu'] = new HTMLPurifier_TagTransform_Simple('ul');
$this->info_tag_transform['dir'] = new HTMLPurifier_TagTransform_Simple('ul');
$this->info_tag_transform['center'] = new HTMLPurifier_TagTransform_Center();
// == miscellaneous transforms ====================================
// initialize blank element definitions
$elements = array( // alphabetically sorted
'a', 'blockquote', 'br', 'caption', 'h1', 'h2', 'h3', 'h4',
'h5', 'h6', 'hr', 'img', 'li', 'ol', 'p', 'table', 'td',
'th', 'tr', 'ul' );
foreach ($elements as $name) $this->addBlankElement($name);
// this should not be applied to XHTML 1.0 Transitional, ONLY
// XHTML 1.0 Strict. We may need to put this in another class.
$this->info['blockquote']->content_model_type = 'strictblockquote';
$this->info['blockquote']->child = false;
// == deprecated attribute transforms =============================
// this segment will probably need to modularized in some fashion
// in order to allow for different "levels" of transformation
// @align for caption ---------------------------------------------
$this->info['caption']->attr_transform_pre['align'] =
new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
// we're following IE's behavior, not Firefox's, due
// to the fact that no one supports caption-side:right,
// W3C included (with CSS 2.1). This is a slightly
// unreasonable attribute!
'left' => 'text-align:left;',
'right' => 'text-align:right;',
'top' => 'caption-side:top;',
'bottom' => 'caption-side:bottom;' // not supported by IE
));
// @align for img -------------------------------------------------
$this->info['img']->attr_transform_pre['align'] =
new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
'left' => 'float:left;',
'right' => 'float:right;',
'top' => 'vertical-align:top;',
'middle' => 'vertical-align:middle;',
'bottom' => 'vertical-align:baseline;',
));
// @align for table -----------------------------------------------
$this->info['table']->attr_transform_pre['align'] =
new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
'left' => 'float:left;',
'center' => 'margin-left:auto;margin-right:auto;',
'right' => 'float:right;'
));
// @align for hr -----------------------------------------------
$this->info['hr']->attr_transform_pre['align'] =
new HTMLPurifier_AttrTransform_EnumToCSS('align', array(
// we use both text-align and margin because these work
// for different browsers (IE and Firefox, respectively)
// and the melange makes for a pretty cross-compatible
// solution
'left' => 'margin-left:0;margin-right:auto;text-align:left;',
'center' => 'margin-left:auto;margin-right:auto;text-align:center;',
'right' => 'margin-left:auto;margin-right:0;text-align:right;'
));
// @align for h1, h2, h3, h4, h5, h6, p ---------------------------
$align_lookup = array();
$align_values = array('left', 'right', 'center', 'justify');
foreach ($align_values as $v) $align_lookup[$v] = "text-align:$v;";
$this->info['h1']->attr_transform_pre['align'] =
$this->info['h2']->attr_transform_pre['align'] =
$this->info['h3']->attr_transform_pre['align'] =
$this->info['h4']->attr_transform_pre['align'] =
$this->info['h5']->attr_transform_pre['align'] =
$this->info['h6']->attr_transform_pre['align'] =
$this->info['p'] ->attr_transform_pre['align'] =
new HTMLPurifier_AttrTransform_EnumToCSS('align', $align_lookup);
// @bgcolor for table, tr, td, th ---------------------------------
$this->info['table']->attr_transform_pre['bgcolor'] =
$this->info['tr']->attr_transform_pre['bgcolor'] =
$this->info['td']->attr_transform_pre['bgcolor'] =
$this->info['th']->attr_transform_pre['bgcolor'] =
new HTMLPurifier_AttrTransform_BgColor();
// @border for img ------------------------------------------------
$this->info['img']->attr_transform_pre['border'] = new HTMLPurifier_AttrTransform_Border();
// @clear for br --------------------------------------------------
$this->info['br']->attr_transform_pre['clear'] =
new HTMLPurifier_AttrTransform_EnumToCSS('clear', array(
'left' => 'clear:left;',
'right' => 'clear:right;',
'all' => 'clear:both;',
'none' => 'clear:none;',
));
// @height for td, th ---------------------------------------------
$this->info['td']->attr_transform_pre['height'] =
$this->info['th']->attr_transform_pre['height'] =
new HTMLPurifier_AttrTransform_Length('height');
// @hspace for img ------------------------------------------------
$this->info['img']->attr_transform_pre['hspace'] = new HTMLPurifier_AttrTransform_ImgSpace('hspace');
// @lang ----------------------------------------------------------
// this is overridden in TransformToXHTML11
$this->info_attr_transform_post['lang'] = new HTMLPurifier_AttrTransform_Lang();
$this->attr_collections['Lang']['lang'] = new HTMLPurifier_AttrDef_Lang();
// @name for img, a -----------------------------------------------
$this->info['img']->attr_transform_pre['name'] =
$this->info['a']->attr_transform_pre['name'] = new HTMLPurifier_AttrTransform_Name();
// @noshade for hr ------------------------------------------------
// this transformation is not precise but often good enough.
// different browsers use different styles to designate noshade
$this->info['hr']->attr_transform_pre['noshade'] =
new HTMLPurifier_AttrTransform_BoolToCSS(
'noshade',
'color:#808080;background-color:#808080;border:0;'
);
// @nowrap for td, th ---------------------------------------------
$this->info['td']->attr_transform_pre['nowrap'] =
$this->info['th']->attr_transform_pre['nowrap'] =
new HTMLPurifier_AttrTransform_BoolToCSS(
'nowrap',
'white-space:nowrap;'
);
// @size for hr --------------------------------------------------
$this->info['hr']->attr_transform_pre['size'] = new HTMLPurifier_AttrTransform_Length('size', 'height');
// @type for li, ol, ul -------------------------------------------
$ul_types = array(
'disc' => 'list-style-type:disc;',
'square' => 'list-style-type:square;',
'circle' => 'list-style-type:circle;'
);
$ol_types = array(
'1' => 'list-style-type:decimal;',
'i' => 'list-style-type:lower-roman;',
'I' => 'list-style-type:upper-roman;',
'a' => 'list-style-type:lower-alpha;',
'A' => 'list-style-type:upper-alpha;'
);
$li_types = $ul_types + $ol_types;
$this->info['ul']->attr_transform_pre['type'] = new HTMLPurifier_AttrTransform_EnumToCSS('type', $ul_types);
$this->info['ol']->attr_transform_pre['type'] = new HTMLPurifier_AttrTransform_EnumToCSS('type', $ol_types, true);
$this->info['li']->attr_transform_pre['type'] = new HTMLPurifier_AttrTransform_EnumToCSS('type', $li_types, true);
// @vspace for img ------------------------------------------------
$this->info['img']->attr_transform_pre['vspace'] = new HTMLPurifier_AttrTransform_ImgSpace('vspace');
// @width for hr, td, th ------------------------------------------
$this->info['td']->attr_transform_pre['width'] =
$this->info['th']->attr_transform_pre['width'] =
$this->info['hr']->attr_transform_pre['width'] = new HTMLPurifier_AttrTransform_Length('width');
}
var $defines_child_def = true;
function getChildDef($def) {
if ($def->content_model_type != 'strictblockquote') return false;
return new HTMLPurifier_ChildDef_StrictBlockquote($def->content_model);
}
}
?>