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Commit various optimizations to the Lexer, and add stub file for profiling the lexer.

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git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@92 48356398-32a2-884e-a903-53898d9a118a
This commit is contained in:
Edward Z. Yang
2006-07-22 22:48:07 +00:00
parent de5ab5e6a0
commit ca1aefe271
5 changed files with 141 additions and 92 deletions
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22
library/HTMLPurifier/Token.php
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@@ -8,36 +8,26 @@ class HTMLPurifier_Token_Tag extends HTMLPurifier_Token // abstract
{
var $is_tag = true;
var $name;
function HTMLPurifier_Token_Tag($name) {
// watch out, actually XML is case-sensitive, while HTML
// is case insensitive, which means we can't use this for XML
$this->name = strtolower($name); // for some reason, the SAX parser
// uses uppercase. Investigate?
}
}
// a rich tag has attributes
class HTMLPurifier_Token_RichTag extends HTMLPurifier_Token_Tag // abstract
{
var $attributes = array();
function HTMLPurifier_Token_RichTag($name, $attributes = array()) {
$this->HTMLPurifier_Token_Tag($name);
function HTMLPurifier_Token_Tag($name, $attributes = array()) {
$this->name = ctype_lower($name) ? $name : strtolower($name);
$this->attributes = $attributes;
}
}
// start CONCRETE ones
class HTMLPurifier_Token_Start extends HTMLPurifier_Token_RichTag
class HTMLPurifier_Token_Start extends HTMLPurifier_Token_Tag
{
var $type = 'start';
}
class HTMLPurifier_Token_Empty extends HTMLPurifier_Token_RichTag
class HTMLPurifier_Token_Empty extends HTMLPurifier_Token_Tag
{
var $type = 'empty';
}
// accepts attributes even though it really can't, for optimization reasons
class HTMLPurifier_Token_End extends HTMLPurifier_Token_Tag
{
var $type = 'end';
@@ -51,7 +41,7 @@ class HTMLPurifier_Token_Text extends HTMLPurifier_Token
var $is_whitespace = false;
function HTMLPurifier_Token_Text($data) {
$this->data = $data;
if (trim($data, " \n\r\t") === '') $this->is_whitespace = true;
if (ctype_space($data)) $this->is_whitespace = true;
}
function append($text) {
return new HTMLPurifier_Token_Text($this->data . $text->data);