Regular Expression Question?t

[joe_C_nice]

I've got a regular expression that I've been mulling over for the past couple days and was hoping for some insight from someone with a better understanding of regular expressions. I've posted some sample code below for a better idea of what it is I'm looking for. I want to say thank you beforehand to all those who reply to this thread.

//Example 1.
//Both conditionals sections are top level, in that they aren't nested
$tpl = '<p>
<!-- if: time_of_day > 1200 -->
Good afternoon,
<!-- else: time_of_day -->
Good morning...
<!-- end_if: time_of_day -->

<!-- if: logged_in -->
  Mr. Smith
  <!-- else: logged_in -->
  esteemed guest
  <!-- end_if: logged_in -->
</p>';

//You'll notice two matches are returned
preg_match_all('/<!-- if: ([\w]+) (?:([<>=]) (\w+) )?-->((?:(?!<!-- else: \1 -->).)*)(?:<!-- else: \1 -->(.*))?<!-- end_if: \1 -->/s', $tpl, $arr);
print_r($arr);


//Example 2.
//One conditional section nested within the other
$tpl = '<p>
<!-- if: time_of_day > 1200 -->
Good afternoon,
<!-- if: logged_in -->
  Mr. Smith
  <!-- else: logged_in -->
  esteemed guest
  <!-- end_if: logged_in -->
<!-- else: time_of_day -->
Good morning...
<!-- end_if: time_of_day -->
</p>';


//You'll notice only match is returned in this instance
preg_match_all('/<!-- if: ([\w]+) (?:([<>=]) (\w+) )?-->((?:(?!<!-- else: \1 -->).)*)(?:<!-- else: \1 -->(.*))?<!-- end_if: \1 -->/s', $tpl, $arr);
print_r($arr); 

Ideally what I'd like is the match returned in example 2 to be similar to the matches returned in example 1. My current regular expression is negating matches if they are nested within another match.

[aCa]

Actually I got more then one result back when running the first example, so I'm wondering if you could tell me exactly what data you would like to get?

Are you only looking for the text between like "Good afternoon," or do you require some info from the if and else if's?

[joe_C_nice]

Actually I got more then one result back when running the first example

Correct but if you run example 2 you'll notice there's only one result.

The only difference between example 1 and 2 is that in example 2 the 'logged_id' conditional template is placed within the 'time_of_day' conditional.

[aCa]

Hmm can't say I see the error.

If the exampleyou showed are real example. Why not try to slip up the regex a bit. Do somthing like this:

preg_match_all('/-->([^<]+)<!--/s', $string, $result);

This will give you all the text you need if I have understood correctly.

[joe_C_nice]

Here's the results I'm getting. You'll notice how they differ.

Ideally what I'd like is the match returned in example 2 to be similar to the matches returned in example 1. My current regular expression is negating matches if they are nested within another match.

Example 1:
------------

Array
(
    [0] => Array
        (
            [0] => <!-- if: time_of_day > 1200 -->
Good afternoon,
<!-- else: time_of_day -->
Good morning...
<!-- end_if: time_of_day -->
            [1] => <!-- if: logged_in -->
  Mr. Smith
  <!-- else: logged_in -->
  esteemed guest
  <!-- end_if: logged_in -->
        )

[1] => Array
    (
        [0] => time_of_day
        [1] => logged_in
    )

[2] => Array
    (
        [0] => >
        [1] => 
    )

[3] => Array
    (
        [0] => 1200
        [1] => 
    )

[4] => Array
    (
        [0] => 
Good afternoon,

        [1] => 
  Mr. Smith

    )

[5] => Array
    (
        [0] => 
Good morning...

        [1] => 
  esteemed guest

    )

)



Example 2:
-------------

Array
(
    [0] => Array
        (
            [0] => <!-- if: time_of_day > 1200 -->

Good afternoon,
<!-- if: logged_in -->
  Mr. Smith
  <!-- else: logged_in -->
  esteemed guest
  <!-- end_if: logged_in -->
<!-- else: time_of_day -->
Good morning...
<!-- end_if: time_of_day -->
        )

[1] => Array
    (
        [0] => time_of_day
    )

[2] => Array
    (
        [0] => >
    )

[3] => Array
    (
        [0] => 1200
    )

[4] => Array
    (
        [0] => 
Good afternoon,
<!-- if: logged_in -->
  Mr. Smith
  <!-- else: logged_in -->

  esteemed guest
  <!-- end_if: logged_in -->

    )

[5] => Array
    (
        [0] => 
Good morning...

    )

)

[joe_C_nice]

Anymore suggestion before I close the book on this one.