Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:66586
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Received-SPF: pass (pb1.pair.com: domain gmail.com designates 209.85.213.48 as permitted sender)
Message-ID: <513DD458.7040705@gmail.com>
Date: Mon, 11 Mar 2013 08:55:52 -0400
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130221 Thunderbird/17.0.3
MIME-Version: 1.0
To: =?UTF-8?B?w4FuZ2VsIEdvbnrDoWxleg==?= <keisial@gmail.com>
CC: internals@lists.php.net
References: <513DBDD4.3010804@gmail.com> <513DCBBF.8020809@gmail.com>
In-Reply-To: <513DCBBF.8020809@gmail.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
Subject: Re: [PHP-DEV] Double-Colon Always Follows the 'parent' Keyword?
From: lobbyjones@gmail.com (Eric James Michael Ritz)

On 03/11/2013 08:19 AM, Ángel González wrote:
 > On 11/03/13 12:19, Eric James Michael Ritz wrote:
 >> [...]
 >>
 >> This is what I want to know: Is there any valid situation in PHP where
 >> the ‘parent’ keyword is not followed by the scope-resolution operator?
 >> I am asking to help me decide on the best way to fix a bug for
 >> php-mode[1] for GNU Emacs.  Consider these three lines:
 >>
 >>     echo $parent;
 >>     echo parent::$foo;
 >>     echo $this->parent;
 >>
 >> [...]
 >>
 >> My idea to fix this problem is to only treat ‘parent’ as a keyword if
 >> the scope-resolution operator immediately follows it.  But before
 >> doing that I want to know whether or not that is true.  So is there
 >> are valid situation where the keyword ‘parent’ does not have ‘::’
 >> after it?
 >
 > Hello Eric
 >
 > Wouldn't it be simpler to check that parent if preceded by
 > whitespace/brackets?  Checking if it's followed by the paamayim
 > nekudotayim, seems also ok.

Thanks for the idea.  Checking for brackets would work but not
whitespace since PHP allows programmers to write code such as

     echo $this->  parent;        // Same as $this->parent

So perhaps checking for paamayim nekudotayim would be best.

--
ejmr
南無妙法蓮華經