wordpress/php-fpm/wordpress_files/themes/sd-bushwick/functions.php

<?php

/**
 * Disable fonts from google. We use Lato from local, its license is open.
 * Just deactivate some lines to return nothing. 
 */
/* NOT PLUGABLE
function bushwick_fonts_url() {
	$fonts_url = '';
	if ( 'off' !== _x( 'on', 'Lato: on or off', 'bushwick' ) ) {
		$fonts_url = add_query_arg( array(
			'family' => urlencode( 'Lato:400,700,400italic,700italic,900' ),
			'subset' => urlencode( 'latin,latin-ext' ),
		), 'https://fonts.googleapis.com/css' );
	}
	return $fonts_url;
}
*/

/**
 * Prints HTML with meta information for the current post-date/time and author.
 */

function bushwick_posted_on() {
    /* printf( '<i>%1$s -  %2$s </i> ',
    get_the_author(),*/
    printf( '<i>%1$s </i> ',
      esc_attr( get_the_date( 'j F Y' ) )
    );
}

/**
 * Displays navigation to next/previous post when applicable.
*
* @return void
*/
function bushwick_post_nav() {
	// Deactivate post_nav
  //return;

  // Don't print empty markup if there's nowhere to navigate.
  $previous = ( is_attachment() ) ? get_post( get_post()->post_parent ) : get_adjacent_post( false, '', true );
  $next     = get_adjacent_post( false, '', false );

  if ( ! $next && ! $previous )
    return;
  ?>
  <nav class="navigation post-navigation" role="navigation">
    <h1 class="screen-reader-text"><?php _e( 'Post navigation', 'bushwick' ); ?></h1>
    <div class="nav-links">
      <?php
        previous_post_link( '%link', _x( '<span class="meta-nav">&larr;</span>', 'Previous post link', 'bushwick' ), $in_same_term = true );
        next_post_link(     '%link', _x( '<span class="meta-nav">&rarr;</span>', 'Next post link',     'bushwick' ), $in_same_term = true );
      ?>
    </div><!-- .nav-links -->
  </nav><!-- .navigation -->
  <?php
}

/* 
 * pebles: Automatically retrieve the first image from posts.
 */
function get_first_img_or_any() {
    global $post, $posts;
    $first_img = '';
    ob_start();
    ob_end_clean();
    $output = preg_match('/< *img[^>]*src *= *["\']?([^"\']*)/i',     $post->post_content, $matches );
    $first_img = $matches[1];
    if ( empty( $first_img ) ) {
      return;      
    //$first_img = "https://clickwp.com/wp-content/uploads/2014/06/icon-wpcom-to-wp.png";
    //}else{
    }
    $first_img='<div class="post-image"><img src="' . $first_img . '" alt="Post Image" width=100  /></div>';
    return $first_img;
}

function custom_excerpt_length( $length ) {
	return 60;
}

add_filter( 'excerpt_length', 'custom_excerpt_length', 999 );
// Replaces the excerpt "Read More" text by a link
function my_the_excerpt() {
    $excerpt = get_the_excerpt();
    $excerpt = strip_shortcodes($excerpt);
    $excerpt = strip_tags($excerpt);
    $excerpt = rtrim($excerpt,"[&#8230;] ");
    //$excerpt = substr($excerpt, 0, 400);
    //$excerpt = substr($excerpt, 0, strripos($excerpt, " "));
    //$excerpt = trim(preg_replace( '/s+/', ' ', $excerpt));
    $excerpt = rtrim($excerpt,'[&amp;hellip]');
    $excerpt = $excerpt.'... <a class="read-more" href="'.get_permalink().'">&nbsp;leer m&aacute;s</a>';
    return $excerpt;
}
//add_filter('the_excerpt', 'my_the_excerpt', 5, 1);