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To: Rasmus Lerdorf <rasmus@lerdorf.com>
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Date: Sun, 26 Jul 2009 05:30:35 -0400
References: <0DE5B38F-CBF8-4458-AC2E-CBBE1641CB45@darkrainfall.org> <4A6C1F18.9040805@lerdorf.com>
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Subject: Re: [PHP-DEV] Another tiny syntax patch
From: gwynne@darkrainfall.org (Gwynne Raskind)

On Jul 26, 2009, at 5:17 AM, Rasmus Lerdorf wrote:
> We have talked about this before, and the conclusion was that if we  
> are
> going to have an invalid PI, we might as well make it <?= since it is
> just as invalid as <?php= and just as easy to parse.  Now you save 8  
> chars.

I prefer strong namespacing of all my tags. "<?" and "<?=" are highly  
generic and could be usurped by any other (admittedly finctional so  
far) processing system run on the file.

As I said, it was just for the heck of it :). I know no one's likely  
to find it interesting.

I did toy with the idea of something that was actually compliant, but:

<?php.	- is not visually distinctive
<?php-	- same
<?php.e	- saves very little typing and is ugly
<?phpe	- mucks with the entire idea of being namespaced
<?php e	- visually confusing and saves little typing

And so forth.

> Gwynne Raskind wrote:
>> For the sake of the heck of it, I'm gonna offer up this tiny patch  
>> I'm
>> using in one of my projects. I don't really care if it gets  
>> included in
>> anything or not, just thought it might interest someone.
>>
>> Effect: Adds a "<?php=" syntax which behaves identically to "<?=",  
>> but
>> works without the use of short_tags.
>> Caveat: The formation "<?php=" is not valid XML. Specifically,  
>> section
>> 2.6 of [1] defines a PITarget as a Name, which in turn is made up of
>> NameChars (section 2.3), which do not include the "=" character.
>> Advantage: Saves five characters of typing. "<?php= $myvar ?>" versus
>> "<?php echo $myvar; ?>".
>>
>> Just thought I'd throw it out there.
>>
>> Index: Zend/zend_language_scanner.l
>> ===================================================================
>> --- Zend/zend_language_scanner.l    (revision 286353)
>> +++ Zend/zend_language_scanner.l    (working copy)
>> @@ -1537,6 +1588,15 @@
>> }
>>
>>
>> +<INITIAL>"<?php=" {
>> +    zendlval->value.str.val = yytext; /* no copying - intentional */
>> +    zendlval->value.str.len = yyleng;
>> +    zendlval->type = IS_STRING;
>> +    BEGIN(ST_IN_SCRIPTING);
>> +    return T_OPEN_TAG_WITH_ECHO;
>> +}
>> +
>> +
>> <INITIAL>"<?php"([ \t]|{NEWLINE}) {
>>     zendlval->value.str.val = yytext; /* no copying - intentional */
>>     zendlval->value.str.len = yyleng;
>>
>> [1] Extensible Markup Language (XML) 1.0 Fifth Edition,
>> http://www.w3.org/TR/2008/REC-xml-20081126/

-- Gwynne