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Use a Zipper to process MakeWellFormed, removing quadratic behavior.

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Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
This commit is contained in:
Edward Z. Yang
2013-10-13 12:53:51 -07:00
parent 82bcc62058
commit 8f401f769e
10 changed files with 158 additions and 149 deletions
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32
tests/common.php
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@@ -182,10 +182,34 @@ function printTokens($tokens, $index = null)
$string = '<pre>';
$generator = new HTMLPurifier_Generator(HTMLPurifier_Config::createDefault(), new HTMLPurifier_Context);
foreach ($tokens as $i => $token) {
if ($index === $i) $string .= '[<strong>';
$string .= "<sup>$i</sup>";
$string .= $generator->escape($generator->generateFromToken($token));
if ($index === $i) $string .= '</strong>]';
$string .= printToken($generator, $token, $i, $index == $i);
}
$string .= '</pre>';
echo $string;
}
function printToken($generator, $token, $i, $isCursor)
{
$string = "";
if ($isCursor) $string .= '[<strong>';
$string .= "<sup>$i</sup>";
$string .= $generator->escape($generator->generateFromToken($token));
if ($isCursor) $string .= '</strong>]';
return $string;
}
function printZipper($zipper, $token)
{
$string = '<pre>';
$generator = new HTMLPurifier_Generator(HTMLPurifier_Config::createDefault(), new HTMLPurifier_Context);
foreach ($zipper->front as $i => $t) {
$string .= printToken($generator, $t, $i, false);
}
if ($token !== NULL) {
$string .= printToken($generator, $token, "", true);
}
for ($i = count($zipper->back)-1; $i >= 0; $i--) {
$string .= printToken($generator, $zipper->back[$i], $i, false);
}
$string .= '</pre>';
echo $string;