PHPカンファレンス福岡2016のLTスライドです
·ͩਖ਼نදݱͰফͯ͠ΔͷʁՄಡੑΛ্͛Δͱ͏·͍ͣ͘͘͠ͻ͜1)1ΧϯϑΝϨϯεԬෳࡶͳਖ਼نදݱΛߟ͑Δͷ࣌ؒͷແବͩͬͨ౦ژ
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RFC5322Internet Message FormatDate and Time Specification
/^(?P[a-zA-Z](?:[a-zA-Z0-9\+\-\.])*)\:(?P(?:\/\/(?P(?:(?P(?:(?:[a-zA-Z0-9\-\._~]|%(?:[0-9A-Z]){2}|[\!\$&'\(\)\*\+,;\=]|\:))*)@)?(?P(?:(?:0-9|1-90-9|10-90-9|20-40-9|250-5)\.(?:0-9|1-90-9|10-90-9|20-40-9|250-5)\.(?:0-9|1-90-9|10-90-9|20-40-9|250-5)\.(?:0-9|1-90-9|10-90-9|20-40-9|250-5)|(?:(?:[a-zA-Z0-9\-\._~]|%(?:[0-9A-Z]){2}|[\!\$&'\(\)\*\+,;\=]))+))(?:\:(?P(?:\d)+))?)(?P(?:\/(?:(?:[a-zA-Z0-9\-\._~]|%(?:[0-9A-Z]){2}|[\!\$&'\(\)\*\+,;\=]|\:|@))*)*)|(?P\/(?:(?:(?:[a-zA-Z0-9\-\._~]|%(?:[0-9A-Z]){2}|[\!\$&'\(\)\*\+,;\=]|\:|@))+(?:\/(?:(?:[a-zA-Z0-9\-\._~]|%(?:[0-9A-Z]){2}|[\!\$&'\(\)\*\+,;\=]|\:|@))*)+)?)|(?P(?:(?:[a-zA-Z0-9\-\._~]|%(?:[0-9A-Z]){2}|[\!\$&'\(\)\*\+,;\=]|\:|@))+(?:\/(?:(?:[a-zA-Z0-9\-\._~]|%(?:[0-9A-Z]){2}|[\!\$&'\(\)\*\+,;\=]|\:|@))*)*)|(?P^(?:[a-zA-Z0-9\-\._~]|%(?:[0-9A-Z]){2}|[\!\$&'\(\)\*\+,;\=]|\:|@))))(?:\?(?P(?:(?:(?:[a-zA-Z0-9\-\._~]|%(?:[0-9A-Z]){2}|[\!\$&'\(\)\*\+,;\=]|\:|@)|\/|\?))*))?(?:#(?P(?:(?:(?:[a-zA-Z0-9\-\._~]|%(?:[0-9A-Z]){2}|[\!\$&'\(\)\*\+,;\=]|\:|@)|\/|\?))*))?$/
RFC3986Uniform Resource Identifier (URI): Generic Syntax
URI = scheme ":" hier-part[ "?" query ] [ "#" fragment ]scheme = ALPHA * ( ALPHA / DIGIT /"+" / "-" / "." )hier-part = "//" authority path-abempty/ path-absolute/ path-rootless/ path-emptyhttps://www.ietf.org/rfc/rfc3986.txt
wݕࡧͨ݁͠Ռɺग़͖ͯͨਖ਼نදݱΛίϐϖͯ͠·ͤΜ͔ʁͦΕਖ਼͍͠Ͱ͔͢ʁwଞͷਓ͕ॻ͍ͨਖ਼نදݱΛؚΉίʔυΛϨϏϡʔͰ͖·͔͢ʁwޙͰͦͷਖ਼نදݱϝϯςͰ͖·͔͢ʁ
ͬͱ؆୯ʹॻ͖͍ͨPSಡΈ͍ͨͱࢥͬͨ͜ͱͳ͍Ͱ͔͢ʁ
RegularExpressionsmade easy
$regex = new VerbalExpressions;$regex->startOfLine()->then("http")->maybe("s")->then("://")->maybe("www.")->anythingBut(" ")->endOfLine();/^(?:http)(?:s)?(?:\:\/\/)(?:www\.)?(?:[^ ]*)$/m
$rfc3986 = new VerbalExpressions;// scheme$scheme = new VerbalExpressions;$scheme->add("http")->maybe("s")->_or("ftp");$rfc3986->startOfLine()->add($scheme)->add("://");/^(?:\(\?\:http\)\(\?\:s\)\?\)\|\(\?\:ftp)(?:\:\/\/)/m
w⾭ଟ͘ͷݴޠʹରԠ͍ͯ͠Δw⾭؆୯ʹॻ͚Δw⾪ෳࡶͳέʔεॻ͚ͳ͍w⾪ݴޠʹΑ࣮͕ͬͯϚνϚν
http://www.kurtisrainboltgreene.name/hexpress/
The hexpress gem isanother take at theconcept of"Verbal Hexpressions"in Ruby.
pattern = Hexpress.new.start("http").maybe("s").with("://").maybe { words.with(".") }.find { matching { [word, "-"] }.multiple }.has(".").either("com", "org").maybe("/").ending
ϫλγϋϧϏʔνϣοτ
To PHPhttps://github.com/sizuhiko/hexpress
trait Find {public function find($value = null, $named =false) {$param = compact('value', 'named');return is_callable($value) ?$this->addNested(FindValue::class, $param) :$this->addValue(FindValue::class, $param);}public function capture($value = null) {return $this->find($value);}}class FindValue {use Nested;private $hexpression;private $open;private $close;public function __construct($param) {extract($param);$this->hexpression = is_callable($value) ?new Hexpress($value) : $value;$this->open = $named ?"(?P<{$named}>" : '(';$this->close = ')';}}class Hexpressdef find(value = nil, &block)value ?add_value(Nested::Find, value) :add_nested(Nested::Find, &block)endalias_method :capture, :findmodule Nestedclass Findinclude Nesteddef initialize(value=nil,&block)@hexpression = value ||Hexpress.new.instance_eval(&block)@open, @close = "(", ")"endendendend࠷ۙͷ1)1ͳΒ͔ͳΓ࣮ʹҠ২Մೳ
$this->hexpress->start($this->scheme())->with(':')->has($this->hierPart())->maybe($this->query())->maybe($this->fragment())->end();URI = scheme ":" hier-part[ "?" query ] [ "#" fragment ]
private function scheme(){return (new Hexpress())->find(function ($hex) {$hex->matching(function ($hex) { $hex->letter(); });$hex->many(function ($hex) {$hex->matching(function ($hex) {$hex->letter()->number()->with('+-.');});}, 0);}, 'scheme');}scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )̍̍
1)1൛ͷಠࣗػೳ໊લ͖αϒύλʔϯ
private function scheme(){return (new Hexpress())->find(function ($hex) {$hex->matching(function ($hex) { $hex->letter(); });$hex->many(function ($hex) {$hex->matching(function ($hex) {$hex->letter()->number()->with('+-.');});}, 0);}, 'scheme');}scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )pOEϝιουͷୈೋҾʹαϒύλʔϯͷ໊લΛࢦఆͰ͖Δ
preg_match('http://example.com:80/',$pattern->toRegExp(),$matches);echo $matches['scheme'];#=> 'http'
w͏ਖ਼نදݱͳΜ͔Ͱফ͠ͳ͍ʂw3VCZͷΤίγεςϜ͔ΒͷҠ২༰қʹͳ͍ͬͯΔʂʂwఘΊͳ͍Ͱʂʂʂ
WJTJUNZCMPHHJUIVChttps://github.com/sizuhikohttp://blog.open.tokyo.jpR:HmM^JRTIeUY@sizuhiko #phpstudy 2016/3/30
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