On 21/06/11 00:50, Luke Hoban wrote:
My read of the spec is that thi\u0073 is a ReservedWord and should not be
allowed as an Identifer. So the following part of the examples quoted below
should be an early error:
var thi\u0073 = 42;
The text in 7.6 seems to address this with:
"All interpretations of identifiers within this specification are based upon their
actual characters regardless of whether or not an escape sequence was used to contribute
any particular characters."
There's also <http://wiki.whatwg.org/wiki/Web_ECMAScript#Identifiers>
which states (after saying "this is very rough"):
"Identifiers containing escape sequences are not equivalent to fully
unescaped identifiers in the case that, after fully unescaping
identifier, it is a ReservedWord. In particular it is possible to create
Identifiers that unescape to a reserved word so long as at least one
character is fully escaped. Subsequent use of such identifiers must also
have at least one character escaped (otherwise the reserved word will be
used instead) but it need not be the same character(s) as that
originally used to create the identifier."
--
Geoffrey Sneddon — Opera Software
<http://gsnedders.com>
<http://opera.com>
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