Revert 1.9 \w limitation to ASCII

Yukihiro_M · March 30, 2010, 3:37pm

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Yukihiro_M · March 30, 2010, 7:42pm

(2010/03/30 22:37), Yukihiro M. wrote:

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http://redmine.ruby-lang.org/issues/show/3047

1.9 e$B$Ge(B \w
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e$B$3$l$Oe(B non ASCII e$B$,A4$F%^%C%A$7$J$/$J$ke(B
(e$B$1$I$9$0$K5$$E$/e(B)
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e$B$^$H$a$k$H!“8_49@-$,M}M3$J$i$P%(%s%3!<%G%#%s%0$K8B$i$:!“e(B
(e$B$H$O8@$C$F$be(B non dummy encoding e$B$K$J$j$^$9$,e(B)
[a-zA-Z_0-9] + non ASCII (= /[a-zA-Z_0-9\P{ASCII}]/)
e$B$,@52r$G$7$g$&!#e(B
Ruby e$B$NJ8K!E*$K$b$3$l$O<1JL;R$K;H$($kL>A0$H0lCW$9$k$N$G0UL#$,e(B
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e$B$J$*!"8_49@-$H$OJL$K=q$-$d$9$5$NLL$Ge(B \w
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\w e$B$@$1FCJL07$$$7$?$$e(B
\w e$B$@$1e(B Unicode e$B$O5$;}$A0-$$e(B
2a. [:word:] e$B;H$C$F$he(B
2b. \d e$B$He(B \s e$B$be(B Unicode e$B;V8~$KLa$=$&$<e(B

= Ruby 1.8
ASCII: [a-zA-Z_0-9]
SJIS/EUC/UTF8: [a-zA-Z_0-9] + non ASCII

= Java
[a-zA-Z_0-9]
http://java.sun.com/j2se/1.5.0/docs/api/java/util/regex/Pattern.html

= .NET
[\p{Ll}\p{Lu}\p{Lt}\p{Lo}\p{Nd}\p{Pc}]

= Perl
e$B$?$V$se(B UTS #18 e$B$K=`$8$ke(B

http://www.unicode.org/reports/tr18/

= Python
e$B$?$V$se(B Perl e$B$HF1$8e(B

Yukihiro_M · March 31, 2010, 12:09am

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In message “Re: [ruby-dev:40863] Re: revert 1.9 \w limitation to ASCII”
on Wed, 31 Mar 2010 02:39:18 +0900, “NARUSE, Yui”
[email protected] writes:

|e$B!VBg$-$JHs8_49@-$K$J$j$=$&$G$9!W$H$$$&$N$O2?$+6qBNE*$J%U%#!<%I%P%C%/$,e(B
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Twittere$B$@$C$?$+$J!#e(B

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|e$B$^$?!“e(BEUC e$B$He(B SJIS e$B7O$N$_$H$$$&$N$O0l4S@-$K7g$1$^$9!#e(B
|e$BMxJX@-$N$?$a$J$i0l4S@-$r7g$/$3$H$b$$$H$o$J$$$N$,e(B Ruby e$B$N;Q@*$G$O$”$j$^$9$,!“e(B
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|e$B$H$$$&$o$1$G!”$3$NJ}8~$G9T$/$J$i$P!"e(Bnon ASCII non Unicode e$B$N>l9g$O!"e(B
|e$B$KJQ$($?J}$,$$$$$h$&$K46$8$^$9!#e(B

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|> Unicodee$B$K$$$$F$O!“%-%c%i%/%?%G!<%?%Y!<e(B
|> e$B%9$,$”$k$N$G!"e(BUnicodee$BE$K%-%c%i%/%?$J$b$N$rBP>]$K$9$k$N$,NI$$e(B
|> e$B$H;W$$$^$9!#e(B
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|
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|e$B!Ve(BUnicodee$BE*$K%-%c%i%/%?$J$b$N!W$O5-9f$NN`$r4^$$^$;$s!#e(B
|e$B$A$J$$K!"e(BBug #3047 e$B$O0lB-Aa$/$=$l$r4|BT$7$F$,$C$+$j$7$F$$$kNc$G$9!#e(B
|http://redmine.ruby-lang.org/issues/show/3047
|
|1.9 e$B$Ge(B \w e$B$r!Ve(BUnicodee$BE*$K%-%c%i%/%?$J$b$N!W$K$9$k$H$3$N5U!"e(B
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|
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|[a-zA-Z_0-9] + non ASCII (= /[a-zA-Z_0-9\P{ASCII}]/) e$B$,@52r$G$7$g$&!#e(B
|Ruby e$B$NJ8K!E*$K$b$3$l$O<1JL;R$K;H$($kL>A0$H0lCW$9$k$N$G0UL#$,e(B
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e$B$^$:!"5sF0$N8uJd$re(B

(1) a-zA-Z_0-9
(2) a-zA-Z_0-9 + non ASCII
(3) Unicodee$BE*e(BCaharacter

e$B$H$7$^$9!#<!$K!"MxMQ<T$NN)>l$re(B

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(b) 1.8e$B%9%/%j%W%H0?”<Te(B (UTF-8)
(c) EUC/SJIS(e$BMW$9$k$Ke(BUnicodee$B0J30e(B)e$BMxMQ<Te(B
(d) Unicoder

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Unicode e$B"*e(B (3)

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e$B$s$G$9$,!#e(B

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Yukihiro_M · March 31, 2010, 3:12am

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/[[:alnum:]]/ - Alphabetic and numeric character
/[[:alpha:]]/ - Alphabetic character
/[[:blank:]]/ - Space or tab
/[[:cntrl:]]/ - Control character
/[[:digit:]]/ - Digit
/[[:graph:]]/ - Non-blank character (excludes spaces, control
characters, and similar)
/[[:lower:]]/ - Lowercase alphabetical character
/[[:print:]]/ - Like [:graph:], but includes the space
character
/[[:punct:]]/ - Punctuation character
/[[:space:]]/ - Whitespace character ([:blank:],
newline,
carriage return, etc.)
/[[:upper:]]/ - Uppercase alphabetical
/[[:xdigit:]]/ - Digit allowed in a hexadecimal number (i.e.,
0-9a-fA-F)
/[[:word:]]/ - A character in one of the following Unicode
general categories Letter, Mark, Number,
Connector_Punctuation<i/i>

/[[:ascii:]]/ - A character in the ASCII character set

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