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perlbug-comment at perl Apr 21, 2012, 10:41 PM Views: 235 Permalink [perl #108286] Wishlist: Overridable keywords On Wed Apr 04 13:53:55 2012, ikegami [at] adaelis wrote: > The builtin "if" should expect the following to follow it (ignoring > whitespace) > > "(" EXPR ")" BLOCK ( "elsif" "(" EXPR ")" BLOCK )* ( "else" BLOCK )? > > None of those tokens should be overridable when parsing that rule (although > EXPR and BLOCK may use overridden tokens). In that case, is there any reason why elsif needs to be a reserved word outside of that context? I’m also trying to plan ahead with regard to adding all keywords to the CORE:: namespace. It should be possible in the future for the ‘if’ keyword to be implemented as a CV named &CORE::if, which has its own custom parser that eats the elsif and else keywords. But it won’t make much sense for there to be a &CORE::elsif subroutine. It would just be a stub that produces a syntax error when inlined. Maybe that does make sense. Then we could always change it later. -- Father Chrysostomos

Subject User Time [perl #108286] Wishlist: Overridable keywords perlbug-comment at perl Apr 21, 2012, 10:41 PM     [perl #108286] Wishlist: Overridable keywords perlbug-comment at perl Apr 22, 2012, 1:56 PM         [perl #108286] Wishlist: Overridable keywords perlbug-comment at perl Apr 22, 2012, 2:43 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 23, 2012, 2:55 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 23, 2012, 3:13 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 23, 2012, 3:19 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 23, 2012, 3:21 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 23, 2012, 6:11 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 23, 2012, 6:15 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 24, 2012, 8:56 AM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 24, 2012, 8:57 AM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 24, 2012, 12:57 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 24, 2012, 1:01 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 24, 2012, 1:03 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 24, 2012, 1:26 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 24, 2012, 8:44 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 24, 2012, 8:45 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 25, 2012, 8:47 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 27, 2012, 1:35 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 27, 2012, 2:00 PM         [perl #108286] Wishlist: Overridable keywords perlbug-followup at perl Apr 28, 2012, 12:41 AM

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