potx.module

<?php

/**
 * @file
 *   Drupal translation template extractor.
 *
 *   This module helps people extract translatable strings from Drupal source
 *   code. The user interface allows translators to choose which part of the
 *   current Drupal instance to translate. The module also provides an API for
 *   other modules (such as coder and l10n_server) to use.
 */

/**
 * Implementation of hook_help().
 */
function potx_help($path, $arg) {
  switch ($path) {
    case 'admin/config/regional/translate/extract':
      return '<p>'. t('This page allows you to generate translation templates for module and theme files. Select the module or theme you wish to generate a template file for. A single Gettext Portable Object (Template) file is generated, so you can easily save it and start translation.') .'</p>';
  }
}

/**
 * Implementation of hook_menu().
 */
function potx_menu() {
  $items['admin/config/regional/translate/extract'] = array(
    'title' => 'Extract',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('potx_select_component_form'),
    'access arguments' => array('translate interface'),
    'weight' => 200,
    'type' => MENU_LOCAL_TASK,
    'file' => 'potx.admin.inc',
  );
  return $items;
}

/**
 * Implementation of hook_reviews(). Coder module integration.
 *
 * Provides the list of reviews provided by this module.
 */
function potx_reviews() {
  $review = array(
    '#title' => t('Interface text translatability'),
    '#link' => 'http://drupal.org/translators',
    '#rules' => array(
      array(
        '#type' => 'callback',
        '#value' => 'potx_coder_review',
      ),
    )
  );
  return array('potx' => $review);
}

/**
 * Callback implementation for coder review of one file.
 */
function potx_coder_review(&$coder_args, $review, $rule, $lines, &$results) {

  // Include potx API.
  include_once __DIR__ . '/potx.inc';

  // Request collection of error messages internally in a structured format.
  potx_status('set', POTX_STATUS_STRUCTURED);

  // Process the file (but throw away the result). We are only interested in
  // the errors found, no the strings identified.
  $filename = realpath($coder_args['#filename']);
  _potx_process_file($filename);

  // Grab the errors and empty the error list.
  $errors = potx_status('get', TRUE);

  $severity_name = _coder_review_severity_name($coder_args, $review, $rule);
  foreach ($errors as $error) {
    // Errors contain the message, file name (which we did not use here), in
    // most cases the line number and in some cases a code excerpt for the
    // error. Not all errors know about the exact line number, so it might
    // not be there, in which case we provide some sensible defaults.
    list($message, $file, $lineno, $excerpt, $docs_url) = $error;
    if (empty($lineno)) {
      // $lineno might be NULL so set to 0.
      $lineno = 0;
      $line = '';
    }
    else {
      // potx numbers lines from 1 (as in text editors),
      // coder from 0 (as in the array index I guess).
      $lineno--;
      $line = $coder_args['#all_lines'][$lineno];
    }
    $rule['#warning'] = htmlspecialchars_decode($message, ENT_QUOTES) . (!empty($docs_url) ? (' <a href="'. $docs_url .'">'. t('Read the documentation') .'</a>.') : '');
    _coder_review_error($results, $rule, $severity_name, $lineno, $line);
  }
}