On 2011-03-27, at 13:05 , Glenn Gillen wrote:
> regexp `[\u{80}-\u{D7FF}\u{E000}-\u{FFFD}\u{10000}-\u{10FFFF}]' compilation
> error: U_REGEX_BAD_ESCAPE_SEQUENCE (RegexpError)
>
> Any ideas what I can do apart from forking Sass and opting for the 1.8
> compatible regexp?
MacRuby ditched Oniguruma in favour of ICU regexps. They're mostly compatible
but not 100%.
Here's the ICU equivalent for that pattern:
/[\u0080-\uD7FF\uE000-\uFFFD\U00010000-\U0010FFFF]/
It uses the \uhhhh and \Uhhhhhhhh notation. It seems the \u{h…} notation is not
supported. It also seems that Oniguruma does not support the ICU style.
If you want to patch sass in a compatible way I'd look into just pre-expanding
the escapes into actual characters before building the regexp. This seems to
work fine in both 1.9 and MacRuby:
s = "\u{80}-\u{D7FF}\u{E000}-\u{FFFD}\u{10000}-\u{10FFFF}"
r = /[#{s}]/
Notice I used double quotes for the string, so what you get is a string with
actual unicode chars in it, not escape sequences. The r regexp built using that
string seems to work correctly in both rubies. At least it evaluated without
error.
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