Ruby - 雑記帳にある改良版を使った方が良さそう。以下コピー。
require 'cgi'
class CGI
# HTMLエンティティーの定義
HtmlEntity = Hash[ *%w(nbsp 160 iexcl 161 cent 162 pound 163 curren 164
yen 165 brvbar 166 sect 167 uml 168 copy 169 ordf 170 laquo 171 not 172
shy 173 reg 174 macr 175 deg 176 plusmn 177 sup2 178 sup3 179 acute 180
shy 173 reg 174 macr 175 deg 176 plusmn 177 sup2 178 sup3 179 acute 180
micro 181 para 182 middot 183 cedil 184 sup1 185 ordm 186 raquo 187
frac14 188 frac12 189 frac34 190 iquest 191 Agrave 192 Aacute 193 Acirc 194
Atilde 195 Auml 196 Aring 197 AElig 198 Ccedil 199 Egrave 200
Eacute 201 Ecirc 202 Euml 203 Igrave 204 Iacute 205 Icirc 206
Iuml 207 ETH 208 Ntilde 209 Ograve 210 Oacute 211 Ocirc 212 Otilde 213
Ouml 214 times 215 Oslash 216 Ugrave 217 Uacute 218 Ucirc 219 Uuml 220
Yacute 221 THORN 222 szlig 223 agrave 224 aacute 225 acirc 226
atilde 227 auml 228 aring 229 aelig 230 ccedil 231 egrave 232
eacute 233 ecirc 234 euml 235 igrave 236 iacute 237 icirc 238 iuml 239
eth 240 ntilde 241 ograve 242 oacute 243 ocirc 244 otilde 245 ouml 246
divide 247 oslash 248 ugrave 249 uacute 250 ucirc 251 uuml 252
yacute 253 thorn 254 yuml 255 fnof 402 Alpha 913 Beta 914 Gamma 915
Delta 916 Epsilon 917 Zeta 918 Eta 919 Theta 920 Iota 921 Kappa 922
Lambda 923 Mu 924 Nu 925 Xi 926 Omicron 927 Pi 928 Rho 929 Sigma 931
Tau 932 Upsilon 933 Phi 934 Chi 935 Psi 936 Omega 937 alpha 945
beta 946 gamma 947 delta 948 epsilon 949 zeta 950 eta 951 theta 952
iota 953 kappa 954 lambda 955 mu 956 nu 957 xi 958 omicron 959 pi 960
rho 961 sigmaf 962 sigma 963 tau 964 upsilon 965 phi 966 chi 967 psi 968
omega 969 thetasym 977 upsih 978 piv 982 bull 8226 hellip 8230 prime 8242
Prime 8243 oline 8254 frasl 8260 weierp 8472 image 8465 real 8476
trade 8482 alefsym 8501 larr 8592 uarr 8593 rarr 8594 darr 8595
harr 8596 crarr 8629 lArr 8656 uArr 8657 rArr 8658 dArr 8659 hArr 8660
forall 8704 part 8706 exist 8707 empty 8709 nabla 8711 isin 8712
notin 8713 ni 8715 prod 8719 sum 8721 minus 8722 lowast 8727 radic 8730
prop 8733 infin 8734 ang 8736 and 8743 or 8744 cap 8745 cup 8746
int 8747 there4 8756 sim 8764 cong 8773 asymp 8776 ne 8800 equiv 8801
le 8804 ge 8805 sub 8834 sup 8835 nsub 8836 sube 8838 supe 8839
oplus 8853 otimes 8855 perp 8869 sdot 8901 lceil 8968 rceil 8969
lfloor 8970 rfloor 8971 lang 9001 rang 9002 loz 9674 spades 9824
clubs 9827 hearts 9829 diams 9830 quot 34 amp 38 lt 60 gt 62 OElig 338
oelig 339 Scaron 352 scaron 353 Yuml 376 circ 710 tilde 732 ensp 8194
emsp 8195 thinsp 8201 zwnj 8204 zwj 8205 lrm 8206 rlm 8207 ndash 8211
mdash 8212 lsquo 8216 rsquo 8217 sbquo 8218 ldquo 8220 rdquo 8221
bdquo 8222 dagger 8224 Dagger 8225 permil 8240 lsaquo 8249
rsaquo 8250 euro 8364) ].inject({}){|r,v|
r[v[0]] = [v[1].to_i].pack("U")
r
}
# CGI.unescapeHtml の修正版
def self.unescapeHTML( string )
return unescapeHTMLnoUTF8( string ) if $KCODE != 'UTF8'
string.gsub(/&([^&;]{2,8});/n) do |ma|
HtmlEntity[$1] or
case $1.dup
when /\A#0*(\d+)\z/n then
(i = Integer($1)) < 65536 ? [i].pack("U") : ma
when /\A#x([0-9a-f]+)\z/ni then
(i = $1.hex ) < 65536 ? [i].pack("U") : ma
else
ma
end
end
end
# CGI.unescapeHtml の修正版 の UTF8以外の時の処理
def self.unescapeHTMLnoUTF8( string )
string.gsub(/&([^&;]{2,8});/n) do |ma|
match = $1.dup
if i = HtmlEntity[match]
i.chr < 128 ? i : ma
else
case match
when /\A#0*(\d+)\z/n then
(i = Integer($1)) < 128 ? i.chr : ma
when /\A#x([0-9a-f]+)\z/ni then
(i = $1.hex) < 128 ? i.chr : ma
else
ma
end
end
end
end
end
![[PukiWiki]](image/pukiwiki.png "[PukiWiki]")
