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[3.0.0] [BACKPORT] More work for hire from Chris

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! Experimental support for some proprietary CSS attributes allowed: opacity (and all of the browser-specific equivalents) and scrollbar colors. Enable by setting %CSS.Proprietary to true.
- Colors missing # but in hex form will be corrected
- CSS Number algorithm improved
. New classes:
  + HTMLPurifier_AttrDef_CSS_AlphaValue
  + HTMLPurifier_AttrDef_CSS_Filter

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1473 48356398-32a2-884e-a903-53898d9a118a
This commit is contained in:
Edward Z. Yang
2007-12-16 23:16:45 +00:00
parent a840c24796
commit 0f961c6af4
12 changed files with 237 additions and 12 deletions
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10
library/HTMLPurifier/AttrDef/CSS/Number.php
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@@ -23,6 +23,7 @@ class HTMLPurifier_AttrDef_CSS_Number extends HTMLPurifier_AttrDef
$number = $this->parseCDATA($number);
if ($number === '') return false;
if ($number === '0') return '0';
$sign = '';
switch ($number[0]) {
@@ -37,13 +38,16 @@ class HTMLPurifier_AttrDef_CSS_Number extends HTMLPurifier_AttrDef
$number = ltrim($number, '0');
return $number ? $sign . $number : '0';
}
if (!strpos($number, '.')) return false;
// Period is the only non-numeric character allowed
if (strpos($number, '.') === false) return false;
list($left, $right) = explode('.', $number, 2);
if (!ctype_digit($left)) return false;
$left = ltrim($left, '0');
if ($left === '' && $right === '') return false;
if ($left !== '' && !ctype_digit($left)) return false;
$left = ltrim($left, '0');
$right = rtrim($right, '0');
if ($right === '') {