
K\

(1)^LN^
    \   ̕GXP[v
    .   Cӂ̈ꕶƃ}b`
    ^   s̐擪Ƀ}b`
    $   s̖Ƀ}b`
    *   O̗vf0ȏ}b`
    +   O̗vf1ȏ}b`
    ?   O̗vfɁC0܂1}b`
  [...] []̂ǂꂩ1Ƀ}b`([]̐擪^ꍇC[]ȊO̕Ƀ}b`)
  (...) K\̃O[v
    |   Oǂ炩̐K\Ƀ}b`

(2)GXP[vV[PX
    \n  s
    \r  A
    \t  ^u
    \f  y[W

(3)NX
    \d  ([0-9]Ɠ)
    \D  ȊO([^0-9]Ɠ)
    \w  P\([a-zA-Z_0-9]Ɠ)
    \W  P\ȊO([^a-zA-Z_0-9]Ɠ)
    \s  󔒕([ \t\f]Ɠ)
    \S  󔒕ȊO([^ \t\f]Ɠ)
    \l  󔒕 + s([ \t\f\r\n]Ɠ)

(4)ʎwq
  {n,m} nȏCmȉ
  {n,}  nȏ
  {n}   傤n
   *    0ȏ({0,}Ɠ)
   +    1ȏ({1,}Ɠ)
   ?    0܂1({0,1}Ɠ)
   
   ʎwq̌?tƂ́CŒZ}b`s (:*?)
   ʎwq̌+tƂ́CobNgbNsȂ (:*+)


(5)Q
   \1    1Ԗڂ̊ʂň͂܂ꂽvfɃ}b`(ȉ\2`\9l)
   \+    ʂň͂܂ꂽvfɍŌɃ}b`
   \&    }b`S
   \`    }b`̑Oɂ镶
   \'    }b`̌ɂ镶
   \g{N} ΓIȌQ (\g{-1}ňO̗vfw)
   \k<NAME> OLv`obt@̌Q
   
   uɂ́C\̑$p\
   OLv`obt@́A$+{NAME}ŎQ

(6)[\
   \b  PꋫE
   \B  PꋫEȊO
   \A  eLXg̐擪
   \z  eLXg̖
   \Z  eLXg̖܂͉s̒O
   
   \=A I͈͂̐擪
   \=z I͈̖͂
   \=^ I͈͂̊es̐擪
   \=$ I͈͂̊es̖

(7)gK\
   (?#text)    Rg
   (?:...)     QƗp̕ۑsȂJbR
   (?=...)     lookahead assertion
   (?!...)     lookahead assertion̔ے
   (?<=...)    lookbehind assertion
   (?<!...)    lookbehind assertion̔ے
   (?>...)     obNgbNȂ
   (?<NAME>...)  OLv`obt@
   (?R...)     recursive pattern
   (?PARNO...) recursive pattern (PARNO0`9, ?0?RƓ`)
   (?&NAME...) OtLv`obt@recursive pattern
   (?(COND)IFTRUE|IFFALSE)  tWJ
   (?isS-isS)  p^[CqON/OFF
   (?isS-isS:) QƗp̕ۑsȂJbRɃp^[Cqw
   \K          \KO$&Ɋ܂߂Ȃ (keep pattern)

(8)POSIXNX
   [:ascii:]   0`127܂ł̕
   [:upper:]   [A-Z]Ɠ
   [:lower:]   [a-z]Ɠ
   [:alpha:]   [A-Za-z]Ɠ
   [:alnum:]   [A-Za-z0-9]Ɠ
   [:digit:]   [0-9]Ɠ

(9)p^[Cq
   i: 啶ʂȂ
   s: .ɉsɂ}b`
   S: \sɉsɂ}b`

