Issue #1938670 by ParisLiakos, Xano, RobLoach, pp, alexpott: Convert unicode.inc to \Drupal\Component\Utility\Unicode.

Issue #1317628 by Albert Volkman, Gaelan, disasm, mjonesdinero, xjm: Clean up for API docs in include files starting with n-z

Issue #1569456 by sun, effulgentsia: Move unicode check earlier in bootstrap and replace fix_gpc_magic() with a hard requirement for magic quotes to be disabled.

Issue #1446372 by Heine, bserem, champlin: Fixed Invalid Unicode code range in PREG_CLASS_UNICODE_WORD_BOUNDARY fails with PCRE 8.30.

Issue #334024 by klausi, catch, beejeebus, sun: Use const keyword to define constants instead of define().

Nate Lampton authored 13 years ago and catch committed 13 years ago

Issue #22336 by quicksketch, scor, boombatower, and rfay. Move all core Drupal files under a core subdirectory.

Issue #1136130 by pillarsdotnet: Reinstated WATCHDOG_* constants; using PHP equivalents caused issues on Windows.

#1007486 by mlncn: Fixed Documentation problem with truncate_utf8: refers to max_return_length instead of max_length

- Patch #878408 by pwolanin, Damien Tournoud: replace decode_entities() with built-in html_entity_decode().

- Patch #855988 by pwolanin, Damien Tournoud, David_Rothstein: get rid of preg_replace() with /e in decode_entities().

- Patch #768040 by jhodgdon, janusman, codycraven: truncate_utf8() only works for latin languages and drupal_substr() had a bug.

- Patch #352359 by Damien Tournoud: provided unit tests for the unicode library and fixed some bugs.

- Patch #64967 by Arancaytar, meba: ereg -> preg for performance reasons and future compatilbility.  PHP6 is rumoured to drop ereg support.

- Patch #245115 by kkaefer, John Morahan, JohnAlbin et al: after a long discussion we've decided to make the concatenation operator consistent with the other operators.

#200185 by Pancho: truncate_utf8() was abused as if it was an UTF-8 character based string function, so align our code to that. Can be renamed to drupal_truncate_chars() in Drupal 7.

#184867 by deekayen, catch and keith.smith: fix some spelling errors in our source code and messages printed