Dr. H (Drupal Helper)

Dr. H (Drupal Helper) is a set of handy functions created during personal Drupal development to avoid having to implement them again and again in every new site.

I have never been a good documentation writer but I have tried to do a good job here. So please check the comments before each function to understand what the function does.

If you think something can be improved (code, documentation, the module itself...), please do not hesitate to open an issue and I'll check it ASAP.

CURRENT FUNCTIONS

• drh_match_url: Checks if the current page matches with a specific pattern.
• drh_match_urls: Checks if the current page matches any of the specified patterns.
• drh_user_has_role: Determines if a user has a specific role assigned.
• drh_get_contrast_color: Gives the contrast color (black or white) depending if the given color is light or dark.
• drh_db_select_table: Executes db_select function on a given table with specific options and optionally formats the results array in the way the developer needs each result.
• drh_match_ip4: Checks if an IP matches with a specific pattern.
• drh_ip4_range: Returns the first and last IP in a range represented by a
  dotted IPV4 with optional mask. The function returns the first and last IPs in
  the range in IP and Long Integer format.

OTHER FUNCTIONALITY

<a> target attribute

As HTML validators do not accept "target" attribute in links, I added a JavaScript solution here.

Instead of using the "target" attribute you can use "drh-target" or "drh_target" attributes, and once the website is loaded, a JavaScript script will create the "target" attribute for that <a> element with the value you added.

- Input example:
<a href="http://example.com" drh-target="_blank">Example</a>
- Result:
<a href="http://example.com" target="_blank">Example</a>

It works because HTML validators do not use JavaScript.

drh-void page

You can use this page as a link in a menu to make that item to be displayed but the link itself doesn't work.

void-link class

This class can be added to any <a> tag or any element containing an <a> tag to disable its link.