On 10/23/05, Autrijus Tang <[EMAIL PROTECTED]> wrote: > Dan Kogai wrote: > > To make the matter worse, there are not just one "yen sign" in Unicode. > > Take a look at this. > > > > ¥ U+00A5 YEN SIGN > > ￥ U+FFE5 FULLWIDTH YEN SIGN > > > > Tough they look and groks the same to human, computers handle them > > differently. This happened when Unicode Consortium decided to make BMP > > round-trippable against legacy encodings. They were distinct in JIS > > standards, so happened Unicode. > > In addition to your handy table, the >> and << french quotes, which are used > quite heavily in Perl 6 for both bracketing and hyper operators, also have > full width equivalents: > > 300A;LEFT DOUBLE ANGLE BRACKET;Ps;0;ON;;;;;Y;OPENING DOUBLE ANGLE BRACKET;;;; > 300B;RIGHT DOUBLE ANGLE BRACKET;Pe;0;ON;;;;;Y;CLOSING DOUBLE ANGLE BRACKET;;;; > > Half width: «» > Full width: 《》 > > There is no way to type out the half-width yen and double angle brackets under > MSWin32, under either the traditional or simplified code pages; only full > width > variants are available. > > One way to approach it is to make Perl 6 accept both full- and > half-width variants. > > Another way would be to use ASCII fallbacks exclusively in real programs, and > reserve unicode variants for pretty-printing, the same way that PLT Scheme and > Haskell recognizes λ in literatures, but actually write "lambda" and > "\" respectively > in everyday coding.
Isn't this starting to be the question of why we have the Unicode operators instead of just functions? Would it be possible to have a function be infix? Rob
