Req #78020 [NEW]: A more flexible 'html_entity_decode' based on tries

From: Date: Thu, 16 May 2019 10:52:40 +0000
Subject: Req #78020 [NEW]: A more flexible 'html_entity_decode' based on tries
Groups: php.bugs 
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From: stvar at yahoo dot com Operating system: PHP version: Next Minor Version Package: Strings related Bug Type: Feature/Change Request Bug description:A more flexible 'html_entity_decode' based on tries Description: ------------ Dear maintainers, It is quite possible and feasible to have a more flexible 'html_entity_decode' that handles properly the named char references that, for historical reasons, are allowed to not be terminated with semicolon [1]. To sustain my claim, I invite you to examine Html-Cref [2] -- a project I developed recently that implements several named character reference *parsers* based on tries instead of hash tables. Upon bringing into Html-Cref's framework PHP's function 'resolve_named_entity_html' and an adapted hash table 'ent_ht_html5' (all these according to the patch file [3]; the size of 'ent_ht_html5' was preserved), the standalone binary obtained 'html-cref' is about 25% bigger then the one built with e.g. the 'etrie' parser: 203K vs. 163K. The measurements done (`html-cref-test --cycles') show that the newly added function 'html_cref_php_parse' in 'src/html_cref_php.c' runs about 4% slower than either of the trie-based parsers 'iwtrie', 'ietrie', 'etrie' and 'wtrie' on a 64-bit Intel Core I5-3210M machine. Sincerely, Stefan Vargyas. PS: this post is a slightly changed version of [4]. Hereby I hope to catch your attention and open a discussion about an improved 'html_entity_decode'. [1] 12.2 Parsing HTML documents: 12.2.5.73 Named character reference state https://html.spec.whatwg.org/#named-character-reference-state [2] Html-Cref: Fast HTML Character References Decoder https://github.com/stvar/html-cref [3] html-cref-php.patch https://gist.github.com/stvar/df320f55d83cedac9fd7261256d20906 [4] https://bugs.php.net/bug.php?id=77769#1557609156 -- Edit bug report at https://bugs.php.net/bug.php?id=78020&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=78020&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=78020&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=78020&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=78020&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=78020&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=78020&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=78020&r=needscript Try newer version: https://bugs.php.net/fix.php?id=78020&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=78020&r=support Expected behavior: https://bugs.php.net/fix.php?id=78020&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=78020&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=78020&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=78020&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=78020&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=78020&r=dst IIS Stability: https://bugs.php.net/fix.php?id=78020&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=78020&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=78020&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=78020&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=78020&r=mysqlcfg

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