Re: Cfor as a junction operator

2003-01-20 Thread Dave Whipp
Damian Conway wrote: Yes, but will it junctify them con-, dis-, ab-, or in-junctively??? Probably most similar to injunctively. But sequentially. I had been thinking of something like this: while (DATA) { print matched $_ if $_ == for(1,2,3,4,5); } __DATA__ 1 2 9 3 4 5 Like the old

Re: L2R/R2L syntax

2003-01-20 Thread Austin Hastings
--- Luke Palmer [EMAIL PROTECTED] wrote: Mailing-List: contact [EMAIL PROTECTED]; run by ezmlm Date: Sat, 18 Jan 2003 15:07:56 -0800 (PST) From: Sean O'Rourke [EMAIL PROTECTED] Cc: Damian Conway [EMAIL PROTECTED], [EMAIL PROTECTED] [EMAIL PROTECTED] X-SMTPD: qpsmtpd/0.20,

Re: L2R/R2L syntax

2003-01-20 Thread Luke Palmer
Date: Mon, 20 Jan 2003 09:20:45 -0800 (PST) From: Austin Hastings [EMAIL PROTECTED] Reply-To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] --- Luke Palmer [EMAIL PROTECTED] wrote: Mailing-List: contact [EMAIL PROTECTED]; run by ezmlm Date: Sat, 18 Jan 2003 15:07:56 -0800 (PST) From:

Re: L2R/R2L syntax

2003-01-20 Thread Michael Lazzaro
On Sunday, January 19, 2003, at 09:51 PM, Luke Palmer wrote: From: Sean O'Rourke [EMAIL PROTECTED] On Sat, 18 Jan 2003, Michael Lazzaro wrote: So 'if' and friends are just (native) subroutines with prototypes like: IIRC it's not that pretty, unfortunately, if you want to support this: That

Re: L2R/R2L syntax

2003-01-20 Thread Michael Lazzaro
On Monday, January 20, 2003, at 09:37 AM, Luke Palmer wrote: Is this magic, or do coderef args construct closures, or what? How do you avoid evaluating the argument to elsunless() when feeding it to the if() sub? Oops. Good point. In this case I see no way of doing it except for specifying

Re: L2R/R2L syntax

2003-01-20 Thread Buddha Buck
Michael Lazzaro wrote: On Sunday, January 19, 2003, at 09:51 PM, Luke Palmer wrote: From: Sean O'Rourke [EMAIL PROTECTED] On Sat, 18 Jan 2003, Michael Lazzaro wrote: So 'if' and friends are just (native) subroutines with prototypes like: IIRC it's not that pretty, unfortunately, if you

Re: L2R/R2L syntax

2003-01-20 Thread Austin Hastings
--- Michael Lazzaro [EMAIL PROTECTED] wrote: On Sunday, January 19, 2003, at 09:51 PM, Luke Palmer wrote: From: Sean O'Rourke [EMAIL PROTECTED] On Sat, 18 Jan 2003, Michael Lazzaro wrote: So 'if' and friends are just (native) subroutines with prototypes like: IIRC it's not that

A proposal on if and else

2003-01-20 Thread Brent Dax
Many people have pointed out the 'semicolon problem' with if and else--that is, if Perl intuits a semicolon after every codeblock that ends a blank line, you would have to cuddle all your elses: if $cond { ... } -- Virtual semicolon here else

Re: L2R/R2L syntax

2003-01-20 Thread Smylers
Michael Lazzaro wrote: Damian Conway wrote: you can leave a comma out either side of a block/closure, no matter where it appears in the argument list Hmm. I had been figuring the all conditional/loop stuff would be special cases within the grammar, because of their associated cruft...

Re: A proposal on if and else

2003-01-20 Thread Rafael Garcia-Suarez
Brent Dax wrote in perl.perl6.language : Yes, I know this means that we have 'else if' instead of 'elsif', but it's only two more characters and it makes the grammar cleaner. The tokeniser could send two tokens else and if whenever it recognizes the keyword elsif -- so this isn't a problem.

Re: A proposal on if and else

2003-01-20 Thread Joseph F. Ryan
Rafael Garcia-Suarez wrote: Brent Dax wrote in perl.perl6.language : Yes, I know this means that we have 'else if' instead of 'elsif', but it's only two more characters and it makes the grammar cleaner. The tokeniser could send two tokens else and if whenever it recognizes the keyword

Re: A proposal on if and else

2003-01-20 Thread Joseph F. Ryan
Rafael Garcia-Suarez wrote: Joseph F. Ryan wrote in perl.perl6.language : I think the point of having Cif as a sub rather than as a separate syntax is so the parser doesn't have to do anything special for special keywords. I think the goal was to simplify the compiler, but with the

Re: A proposal on if and else

2003-01-20 Thread Rafael Garcia-Suarez
Joseph F. Ryan wrote in perl.perl6.language : If the final design stays the way it is now, there really won't be a lexer. Instead, a perl6 grammar parses the data, and builds up a huge match-object as it, well, matches. This match object is then munged into the optree. Oh, yes, I remember

A proposal for separable verbs. (Was: Re: A proposal on if and else)

2003-01-20 Thread Austin Hastings
--- Joseph F. Ryan [EMAIL PROTECTED] wrote: If the final design stays the way it is now, there really won't be a lexer. Instead, a perl6 grammar parses the data, and builds up a huge match-object as it, well, matches. This match object is then munged into the optree. With this in mind,

RE: A proposal for separable verbs. (Was: Re: A proposal on if and else)

2003-01-20 Thread Brent Dax
Austin Hastings: # Let's support separable verbs. # # Here's how: # # # Note my arbitrary selection of _ as separation indicator. # Feel free to replace this with something more appropriate: # # sub if($test, block) # _ elsif ($test, block) is optional is floating is multi # _

RE: A proposal for separable verbs. (Was: Re: A proposal on if and else)

2003-01-20 Thread Austin Hastings
--- Brent Dax [EMAIL PROTECTED] wrote: Austin Hastings: # Let's support separable verbs. # # Here's how: # # # Note my arbitrary selection of _ as separation indicator. # Feel free to replace this with something more appropriate: # # sub if($test, block) # _ elsif ($test,

Re: A proposal for separable verbs. (Was: Re: A proposal on if and else)

2003-01-20 Thread Simon Cozens
[EMAIL PROTECTED] (Austin Hastings) writes: Let's support separable verbs. That (http://dev.perl.org/perl6/rfc/309.html) is a really good idea. -- Writing software is more fun than working.

Why Cmap needs work (was Re: L2R/R2L syntax)

2003-01-20 Thread Michael Lazzaro
On Monday, January 20, 2003, at 12:30 PM, Smylers wrote: Ah. It was only on reading that (and discovering that you hadn't previously known about the 'optional comma with closure argument' rule) that I understood why you had previously been so in favour of proposed new syntaxes: through a desire

Re: L2R/R2L syntax

2003-01-20 Thread Luke Palmer
Date: 20 Jan 2003 20:30:07 - From: Smylers [EMAIL PROTECTED] It seems that when chaining together functions, omitting C ~ operators gives the same result in the familiar Perl 5 standard function-call syntax: @foo = sort { ... } ~ map { ... } ~ grep { ... } ~ @bar; @foo = sort {