text: 'use strict';
  
  module.exports = ctx => {
    const { helper } = ctx.extend;
  
    const date = require('./date');
  
    helper.register('date', date.date);
    helper.register('date_xml', date.date_xml);
    helper.register('time', date.time);
    helper.register('full_date', date.full_date);
    helper.register('relative_date', date.relative_date);
    helper.register('time_tag', date.time_tag);
    helper.register('moment', date.moment);
  
    const format = require('./format');
  
    helper.register('strip_html', format.strip_html);
    helper.register('trim', format.trim);
    helper.register('word_wrap', format.word_wrap);
    helper.register('truncate', format.truncate);
  
    helper.register('fragment_cache', require('./fragment_cache')(ctx));
  
    helper.register('gravatar', require('./gravatar'));
  
    const is = require('./is');
    helper.register('is_current', is.current);
    helper.register('is_home', is.home);
    helper.register('is_post', is.post);
    helper.register('is_page', is.page);
    helper.register('is_archive', is.archive);
    helper.register('is_year', is.year);
    helper.register('is_month', is.month);
    helper.register('is_category', is.category);
    helper.register('is_tag', is.tag);
  
    helper.register('list_archives', require('./list_archives'));
    helper.register('list_categories', require('./list_categories'));
    helper.register('list_tags', require('./list_tags'));
    helper.register('list_posts', require('./list_posts'));
  
    helper.register('open_graph', require('./open_graph'));
  
    helper.register('number_format', require('./number_format'));
  
    helper.register('paginator', require('./paginator'));
  
    helper.register('partial', require('./partial')(ctx));
  
    helper.register('markdown', require('./markdown'));
    helper.register('render', require('./render')(ctx));
  
    helper.register('css', require('./css'));
    helper.register('js', require('./js'));
    helper.register('link_to', require('./link_to'));
    helper.register('image_tag', require('./image_tag'));
    helper.register('favicon_tag', require('./favicon_tag'));
    helper.register('feed_tag', require('./feed_tag'));
  
    helper.register('toc', require('./toc'));
  
    helper.register('relative_url', require('./relative_url'));
    helper.register('url_for', require('./url_for'));
  
    const debug = require('./debug');
    helper.register('inspect', debug.inspectObject);
    helper.register('log', debug.log);
  };
  