Php Is Missing Perl Compatible Regular Expression With Unicode Support

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PCRE Open Source Library for Perl Compatible Regular ...

    https://www.regular-expressions.info/pcre.html
    PCRE (Perl Compatible Regular Expressions) is an open source library written in C that allows developers to add regular expression support to their applications. The library is compatible with a great number of C compilers and operating systems.

perlunicode - Unicode support in Perl

    https://mojolicious.org/perldoc/perlunicode
    # Unicode Regular Expression Support Level. The following list of Unicode supported features for regular expressions describes all features currently directly supported by core Perl. The references to "Level N" and the section numbers refer to the Unicode Technical Standard #18, "Unicode Regular Expressions", version 13, from August 2008.

Perl Compatible Regular Expressions - Wikipedia

    https://en.wikipedia.org/wiki/Perl_Compatible_Regular_Expressions
    Perl Compatible Regular Expressions (PCRE) is a library written in C, which implements a regular expression engine, inspired by the capabilities of the Perl programming language. Philip Hazel started writing PCRE in summer 1997. PCRE's syntax is much more powerful and flexible than either of the POSIX regular expression flavors and than that of many other regular-expression libraries.Operating system: Cross-platform

unicode - (grep) Regex to match non-ASCII characters ...

    https://stackoverflow.com/questions/2124010/grep-regex-to-match-non-ascii-characters
    On Linux, I have a directory with lots of files. Some of them have non-ASCII characters, but they are all valid UTF-8.One program has a bug that prevents it working with non-ASCII filenames, and I have to find out how many are affected.

Regex Tutorial - Unicode Characters and Properties

    http://www.regular-expressions.info/unicode.html
    Perl supports Unicode starting with version 5.6. PCRE can optionally be compiled with Unicode support. Note that PCRE is far less flexible in what it allows for the \p tokens, despite its name “Perl-compatible”. The PHP preg functions, which are based on PCRE, support Unicode when the /u option is appended to the regular expression.

regex - Perl compatible regular expression (PCRE) in ...

    https://stackoverflow.com/q/7063420
    Support for all Unicode line separators (Java can do this, as can Perl albeit somewhat begrudgingly with \R per RL1.6. Full set operations — union, intersection, difference, and symmetric difference — on bracketed character classes per RL1.3, which is much easier than getting at it in Perl.

Moodle plugins directory: Perl-Compatible Regular Expression

    https://moodle.org/plugins/view.php?plugin=qtype_preg&moodle_version=23
    A question that could check student's response against several regular expressions and could give next character and next word hints. If you do not know what regular expression is, it could also work like Moodle Shortanswer question with hints, just choose "Moodle shortanswer" as notation and you could enter answers just like in shortanswer question type.

PHP Manual: Regular Expression Functions (Perl-Compatible)

    http://www.nusphere.com/kb/phpmanual/ref.pcre.htm
    PhpED - PHP IDE integrated development environment for developing web sites using PHP, HTML, Perl, JScript and CSS that combines a comfortable editor, debugger, profiler with the MySQl, PostrgeSQL database support based on easy wizards and tutorials.Easy to use for debugging PHP scripts, publishing projects to remote servers through FTP, WebDAV, CVS.

PCRE Regular Expression Pattern Syntax Refference (PHP preg*)

    https://www.regextester.com/pregsyntax.html
    PCRE provides some extensions to the Perl regular expression facilities: Although lookbehind assertions must match fixed length strings, each alternative branch of a lookbehind assertion can match a different length of string. Perl 5.005 requires them all to have the same length.



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