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Re: Getting class object information from file.

Posted by Jerry Stuckle on 11/08/82 12:00

elmosik@gmail.com wrote:
> On 17 Sty, 05:24, Jerry Stuckle <jstuck...@attglobal.net> wrote:
>
>> You should only be calling the constructor of the parent class in your
>> constructor.
>
> Yes it's normal when you create new instance of included class,
> constructor is called automatically ('new Class()'). Remember that in
> constructor I can have also 'include/require' directives and it's the
> main problem of that.
>

Normally you do not include/require something within a constructor. And
you do have to call the parent class' constructor manually if you have
one in the derived class.

> I had it coded in the second way that I described before (regexp) and
> it work correctly, the main problem was how to choose valid regular
> expressions to classes, functions, comments etc.
>
> It's basicly to do in 3 steps:
>
> 1. Remove comments from file, they can consists faked classes and
> functions e.g.
> - /* class MyClass extends XXX */
> - # public function test()
> - // class MyClass extends XXX
>
> 2. Match with regexp class context:
> - class .... { ..... }
> - get class context and match functions pattern
>
> 3. Remove sweepings and here you go
>
> My patterns (PHP preg_), they work for me now but I don't know in 100%
> that they are valid - I need to test them more precisely.
>
> Comments
> ------------------------
> Multi line comments:
> '@/\*.*?\*/@ims'
>
> Hashed lines:
> '@^[\s|\t]+#.*?$@ims'
>
> Double slashed lines:
> '@^[\s|\t]+//.*?$@ims'
>
>
> Classes, functions
> -------------------------
> From one 'class' directive to other or to '?>':
> '@^[\s|\t]+class[\s|\t]+([A-Z0-9_]+)([^{]+)?.*?(?:class|\?\>)@ism'
>
> Probably not working for code like that (divided into few <?php ?>
> directives):
>
> ------------ sample code
> class MyClass extends XXX
> {
> }
> ?>
>
> <?php
> class MySecondClass...
> ?>
> ------------------------
>
> Check if class extends XXX:
> '@extends[\s|\t]+XXX@ism'
>
> Look only for public methods:
> '@^[\s|\t]+(?:function|public[\s\t]+function)[\s|\t]+([A-Z0-9_]+)@ims'
>
> If you saw dramatic mistakes in my patterns say that :) I correct
> them.
>
> --
> Thanks and see you
>

I'm not an expert on regexs, so I won't comment on them specifically.
But unless you're going to build a complete PHP parser, someone will
find a way around almost anything you do.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================

 

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