<?php

function componify(){
  if( function_exists( 'have_rows' ) && have_rows( 'components' ) ){
    while( have_rows( 'components') ){
      the_row();
      $type = classify( get_row_layout() );
      $content = buffer_template_part( 'components/component', $type );
      $content = preg_replace_callback( '/<h2(.*)?>(.*)?<\/h2>/', function($matches){
        return '<h2 id="to-'.classify( $matches[2] ).'" '.$matches[1].'>'.$matches[2].'</h2>';
      }, $content );
?>
  <section class="component component--<?= $type ; ?>">
    <?= $content ?>
  </section>
<?php
    }
  }
}

// you’ll need buffer_template_part() to make it work
function buffer_template_part( $slug, $name ){
  ob_start();
  get_template_part( $slug, $name );
  return ob_get_clean();
}