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Re: PATCH: [perl #58182] partial, "The Unicode Bug". Add unicode semantics for \s, \w

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Eric Brine
May 18, 2010 16:40
Re: PATCH: [perl #58182] partial, "The Unicode Bug". Add unicode semantics for \s, \w
Message ID:
On Tue, May 18, 2010 at 4:04 PM, demerphq <> wrote:

> On 18 May 2010 21:30, Jesse Vincent <> wrote:
> > Neither of those arguments suggest that this is a case when we should
> > break backward compatibility gratuitously.
> We shall have to agree to disagree that this is gratuitous breakage. I
> think thats going far too far.
> > We may well be unable to do this cleanly and sanely. But that's a very
> > different sort of argument.
> Basically we only have to worry about 'l' because of 'le', and 'f'
> because of 'if'. Any others?

Not "if". it's already a syntax error because "i" is a valid option.

Any of the following immediately following the delimiter are currently
valid, but will become a syntax error (e.g. /foo/le+1) or different valid
code (e.g. /foo/lt+1):

   - unless & until from /u
   - le & lt from /l
   - [none] from /t

We're precluded from using these:

   - /a (and)
   - /f (for, foreach)
   - /n (ne)
   - /w (when, while)

We don't have to worry about these:

   - cmp
   - eq
   - if
   - ge & gt
   - or
   - xor
   - builtin function
   - sub names
   - barewords

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