Wrap logo words in spans for Thesis WordPress theme.

thesis-span-logo-words.php

<?php

// Override default header.
function custom_default_header() {

    // Get the default header.
    ob_start();
    thesis_default_header();
    $output = ob_get_clean();
    
    // Captures the last word in the logo before a tag and its surroundings.
    $re = '/(                  # First subpattern:
                logo">[^<\w]*  #   The h1 or p & up to the next tag or word.
                (?:<a[^>]+>)?  #   A link (maybe?)
                [\w\s]*        #   As many words or spaces as we can handle.
            )
            (                  # Second subpattern:
                \b\w+            #   At least one word.
            )
            (                  # Third subpattern:
                \s*<           #   The closing link or logo tag or a span.
            )
            /x';

    // Run the regex replacement until it has no effect.
    do {
       $previous = $output;
       $output = preg_replace($re, '\\1 <span class="word-' . $i . '">\\2</span> \\3', $output);
    } while ($previous != $output);
    
    // Output the header with every word in the logo wrapped with a span.
    echo $output;
}
remove_action('thesis_hook_header', 'thesis_default_header');
add_action('thesis_hook_header', 'custom_default_header');

?>