· ͩ ਖ਼ ن ද ݱ Ͱ ফ ໣ ͠ ͯ Δ ͷ ʁ Մ ಡ ੑ Λ ্ ͛ Δ ͱ ͏ · ͘ ͍ ͘ ͠ ͣ ͻ ͜ 1)1ΧϯϑΝϨϯεࡳຈ ෳࡶͳਖ਼نදݱΛߟ͑Δͷ͸࣌ؒͷແବͩͬͨ ౦ ژ

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I — ਖ਼نදݱ

/^(?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}|[\!\$&'\(\)\*\+,;\=]|\:|@)|\/| \?))*))?$/

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/^(?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}|[\!\$&'\(\)\*\+,;\=]|\:|@)|\/| \?))*))?$/

RFC3986 Uniform 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-empty https://www.ietf.org/rfc/rfc3986.txt

wݕࡧͨ݁͠Ռɺग़͖ͯͨਖ਼نදݱΛί ϐϖͯ͠·ͤΜ͔ʁͦΕਖ਼͍͠Ͱ͔͢ʁ wଞͷਓ͕ॻ͍ͨਖ਼نදݱΛؚΉίʔυ ΛϨϏϡʔͰ͖·͔͢ʁ wޙͰͦͷਖ਼نදݱϝϯςͰ͖·͔͢ʁ

΋ͬͱ؆୯ʹ ॻ͖͍ͨPSಡΈ͍ͨ ͱࢥͬͨ͜ͱ͸ͳ͍Ͱ͔͢ʁ

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Regular Expressions made 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ଟ͘ͷݴޠʹରԠ͍ͯ͠Δ w⾭؆୯ʹॻ͚Δ w⾪ෳࡶͳέʔε͸ॻ͚ͳ͍ w⾪ݴޠʹΑ࣮ͬͯ૷͕ϚνϚν

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http://www.kurtisrainboltgreene.name/hexpress/

The hexpress gem is another take at the concept 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

To PHP https://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 Hexpress def find(value = nil, &block) value ? add_value(Nested::Find, value) : add_nested(Nested::Find, &block) end alias_method :capture, :find module Nested class Find include Nested def initialize(value=nil,&block) @hexpression = value || Hexpress.new.instance_eval(&block) @open, @close = "(", ")" end end end end ࠷ۙͷ1)1ͳΒ͔ͳΓ஧࣮ʹҠ২Մೳ

URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ] scheme = ALPHA * ( ALPHA / DIGIT / "+" / "-" / "." ) hier-part = "//" authority path-abempty / path-absolute / path-rootless / path-empty https://www.ietf.org/rfc/rfc3986.txt

$this->hexpress ->start($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)1൛ͷಠࣗػೳ ໊લ෇͖αϒύλʔϯ

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 / "+" / "-" / "." ) pOEϝιουͷୈೋҾ਺ʹ αϒύλʔϯͷ໊લΛࢦఆͰ͖Δ

preg_match( 'http://example.com:80/', $pattern->toRegExp(), $matches); echo $matches['scheme']; #=> 'http'

w΋͏ਖ਼نදݱͳΜ͔Ͱফ໣͠ͳ͍ʂ w3VCZͷΤίγεςϜ͔ΒͷҠ২΋༰қ ʹͳ͍ͬͯΔʂʂ wఘΊͳ͍Ͱʂʂʂ

WJTJUNZCMPHHJUIVC https://github.com/sizuhiko http://blog.open.tokyo.jp R: HmM^JRTIeUY @sizuhiko #phpstudy 2016/3/30