Re: Re: PHP 5.1 (Or How to break tousands of apps out there)
| From: | Marcus Boerger | Date: | Sat, 26 Nov 2005 12:56:05 +0000 |
| Subject: | Re: Re: PHP 5.1 (Or How to break tousands of apps out there) | ||
| References: | 1 2 3 4 5 6 7 8 9 10 11 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-20536@lists.php.net to get a copy of this message | ||
Hello Sebastian,
Saturday, November 26, 2005, 1:46:31 PM, you wrote:
> On 11/26/05, Marcus Boerger <helly@php.net> wrote:
>> The only thing that matters is whether i can write a correct
>> lexer/parser for this without breaking stuff.
> Im no parser expert at all, so just to be sure that I understand the
> problem correctly: I guess you can't distinguish at the parser/lexer
> level between cases where it's ambiguos without white spaces and where
> it isn't?
A lexer splits on tokens while white space is optional. If present it
allows separation of tokens. Forcing this would make whitespace a token
which would be very bad. The parser then works on the tokens and doesn't
see any whitespace.
> Alternatively, could you provide a configuration switch to turn the
> use of namespace constants in the ternary on or off? (So that people
> who don't use namespace constants but use the ternary without spaces
> wouldn't need to change all their code?)
That is no option at all becuase it would make it impossible to write
portable php code.
marcus