drupal/modules/page.module

<?php
// $Id$

/**
 * @file
 * Enables the creation of pages that can be added to the navigation system.
 */

/**
 * Implementation of hook_help().
 */
function page_help($section) {
  switch ($section) {
    case 'admin/modules#description':
      return t('Enables the creation of pages that can be added to the navigation system.');
    case 'node/add#page':
      return t('If you want to add a static page, like a contact page or an about page, use a page.');
  }
}

/**
 * Implementation of hook_perm().
 */
function page_perm() {
  return array('create pages', 'edit own pages');
}

/**
 * Implementation of hook_node_info().
 */
function page_node_info() {
  return array('page' => array('name' => t('page'), 'base' => 'page'));
}

/**
 * Implementation of hook_access().
 */
function page_access($op, $node) {
  global $user;

  if ($op == 'create') {
    return user_access('create pages');
  }

  if ($op == 'update' || $op == 'delete') {
    if (user_access('edit own pages') && ($user->uid == $node->uid)) {
      return TRUE;
    }
  }
}

/**
 * Implementation of hook_menu().
 */
function page_menu($may_cache) {
  $items = array();

  if ($may_cache) {
    $items[] = array('path' => 'node/add/page', 'title' => t('page'),
      'access' => page_access('create', NULL));
  }

  return $items;
}

/**
 * Implementation of hook_validate().
 */
function page_validate(&$node) {
  node_validate_title($node);
}

/**
 * Implementation of hook_form().
 */
function page_form(&$node) {

  $form['title'] = array('#type' => 'textfield', '#title' => t('Title'), '#size' => 60, '#maxlength' => 128, '#required' => TRUE, '#default_value' => $node->title);

  $form['body'] = array(
    '#type' => 'textarea', '#title' => t('Body'), '#default_value' => $node->body, '#required' => TRUE
  );
  $form = array_merge($form, filter_form($node->format));

  $form['log'] = array(
    '#type' => 'fieldset', '#title' => t('Log message'), '#collapsible' => TRUE, '#collapsed' => TRUE
  );
  $form['log']['message'] = array(
    '#type' => 'textarea', '#default_value' => $node->log, '#rows' => 5,
    '#description' => t('An explanation of the additions or updates being made to help other authors understand your motivations.')
  );

  return $form;
}