drupal:从字符串创建slug的标准方法

Question

此上下文中的一个slug是一个字符串,可以安全地用作urls或css上的标识符.例如,如果您有此字符串:

I'd like to eat at McRunchies!

它的slu is将是:

i-d-like-to-eat-at-mcrunchies

我想知道是否有一种在Drupal上构建这样的字符串的标准方法(或drupal提供的php函数).更确切地说,在Drupal主题中.

上下文:我正在修改一个drupal主题,因此它生成的节点的html包括它们的分类术语作为包含div的css类.麻烦的是,其中一些术语的名称不是有效的css类名.我需要"迷恋"他们.

我读过有些人只是这样做:

str_replace(" ", "-", $term->name)

这对我来说真的不够.它不downcase代替大写字母,但更重要的是,不能取代非ASCII字符(如A或E)通过的ASCII码值.它也不会从开始和结束中删除"分隔符字符串".

有没有在Drupal 6(或PHP库)的功能,它提供了一种slugify一个字符串,并且可以在Drupal主题的template.php文件中使用吗？

Answer 1

您可以使用内置的Drupal函数来执行此操作.

$string = drupal_clean_css_identifier($string);
$slug = drupal_html_class($string);

函数将为你做到这一点.

Answer 2

我是一个快乐的Zen主题用户,因此我遇到了它附带的这个奇妙的功能:zen_id_safe http://api.lullabot.com/zen_id_safe

它不依赖于任何其他主题功能,因此您只需将其复制到您的模块或主题并使用它.它是一个非常小而简单的功能,所以我只是为了方便而粘贴在这里.

function zen_id_safe($string) {
  // Replace with dashes anything that isn't A-Z, numbers, dashes, or underscores.
  return strtolower(preg_replace('/[^a-zA-Z0-9-]+/', '-', $string));
}

Answer 3

谢谢你的回答.

我最终使用了slug这里解释的功能:http://www.drupalcoder.com/story/554-how-to-create-url-aliases-in-drupal-without-path-module(在文章的最后,你必须点击才能看到源代码).

这可以满足我的需求和更多功能,而无需包含外部模块等.

粘贴下面的代码以便日后参考:

/**
 * Calculate a slug with a maximum length for a string.
 *
 * @param $string
 *   The string you want to calculate a slug for.
 * @param $length
 *   The maximum length the slug can have.
 * @return
 *   A string representing the slug
 */
function slug($string, $length = -1, $separator = '-') {
  // transliterate
  $string = transliterate($string);

  // lowercase
  $string = strtolower($string);

  // replace non alphanumeric and non underscore charachters by separator
  $string = preg_replace('/[^a-z0-9]/i', $separator, $string);

  // replace multiple occurences of separator by one instance
  $string = preg_replace('/'. preg_quote($separator) .'['. preg_quote($separator) .']*/', $separator, $string);

  // cut off to maximum length
  if ($length > -1 && strlen($string) > $length) {
    $string = substr($string, 0, $length);
  }

  // remove separator from start and end of string
  $string = preg_replace('/'. preg_quote($separator) .'$/', '', $string);
  $string = preg_replace('/^'. preg_quote($separator) .'/', '', $string);

  return $string;
}

/**
 * Transliterate a given string.
 *
 * @param $string
 *   The string you want to transliterate.
 * @return
 *   A string representing the transliterated version of the input string.
 */
function transliterate($string) {
  static $charmap;
  if (!$charmap) {
    $charmap = array(
      // Decompositions for Latin-1 Supplement
      chr(195) . chr(128) => 'A', chr(195) . chr(129) => 'A',
      chr(195) . chr(130) => 'A', chr(195) . chr(131) => 'A',
      chr(195) . chr(132) => 'A', chr(195) . chr(133) => 'A',
      chr(195) . chr(135) => 'C', chr(195) . chr(136) => 'E',
      chr(195) . chr(137) => 'E', chr(195) . chr(138) => 'E',
      chr(195) . chr(139) => 'E', chr(195) . chr(140) => 'I',
      chr(195) . chr(141) => 'I', chr(195) . chr(142) => 'I',
      chr(195) . chr(143) => 'I', chr(195) . chr(145) => 'N',
      chr(195) . chr(146) => 'O', chr(195) . chr(147) => 'O',
      chr(195) . chr(148) => 'O', chr(195) . chr(149) => 'O',
      chr(195) . chr(150) => 'O', chr(195) . chr(153) => 'U',
      chr(195) . chr(154) => 'U', chr(195) . chr(155) => 'U',
      chr(195) . chr(156) => 'U', chr(195) . chr(157) => 'Y',
      chr(195) . chr(159) => 's', chr(195) . chr(160) => 'a',
      chr(195) . chr(161) => 'a', chr(195) . chr(162) => 'a',
      chr(195) . chr(163) => 'a', chr(195) . chr(164) => 'a',
      chr(195) . chr(165) => 'a', chr(195) . chr(167) => 'c',
      chr(195) . chr(168) => 'e', chr(195) . chr(169) => 'e',
      chr(195) . chr(170) => 'e', chr(195) . chr(171) => 'e',
      chr(195) . chr(172) => 'i', chr(195) . chr(173) => 'i',
      chr(195) . chr(174) => 'i', chr(195) . chr(175) => 'i',
      chr(195) . chr(177) => 'n', chr(195) . chr(178) => 'o',
      chr(195) . chr(179) => 'o', chr(195) . chr(180) => 'o',
      chr(195) . chr(181) => 'o', chr(195) . chr(182) => 'o',
      chr(195) . chr(182) => 'o', chr(195) . chr(185) => 'u',
      chr(195) . chr(186) => 'u', chr(195) . chr(187) => 'u',
      chr(195) . chr(188) => 'u', chr(195) . chr(189) => 'y',
      chr(195) . chr(191) => 'y',
      // Decompositions for Latin Extended-A
      chr(196) . chr(128) => 'A', chr(196) . chr(129) => 'a',
      chr(196) . chr(130) => 'A', chr(196) . chr(131) => 'a',
      chr(196) . chr(132) => 'A', chr(196) . chr(133) => 'a',
      chr(196) . chr(134) => 'C', chr(196) . chr(135) => 'c',
      chr(196) . chr(136) => 'C', chr(196) . chr(137) => 'c',
      chr(196) . chr(138) => 'C', chr(196) . chr(139) => 'c',
      chr(196) . chr(140) => 'C', chr(196) . chr(141) => 'c',
      chr(196) . chr(142) => 'D', chr(196) . chr(143) => 'd',
      chr(196) . chr(144) => 'D', chr(196) . chr(145) => 'd',
      chr(196) . chr(146) => 'E', chr(196) . chr(147) => 'e',
      chr(196) . chr(148) => 'E', chr(196) . chr(149) => 'e',
      chr(196) . chr(150) => 'E', chr(196) . chr(151) => 'e',
      chr(196) . chr(152) => 'E', chr(196) . chr(153) => 'e',
      chr(196) . chr(154) => 'E', chr(196) . chr(155) => 'e',
      chr(196) . chr(156) => 'G', chr(196) . chr(157) => 'g',
      chr(196) . chr(158) => 'G', chr(196) . chr(159) => 'g',
      chr(196) . chr(160) => 'G', chr(196) . chr(161) => 'g',
      chr(196) . chr(162) => 'G', chr(196) . chr(163) => 'g',
      chr(196) . chr(164) => 'H', chr(196) . chr(165) => 'h',
      chr(196) . chr(166) => 'H', chr(196) . chr(167) => 'h',
      chr(196) . chr(168) => 'I', chr(196) . chr(169) => 'i',
      chr(196) . chr(170) => 'I', chr(196) . chr(171) => 'i',
      chr(196) . chr(172) => 'I', chr(196) . chr(173) => 'i',
      chr(196) . chr(174) => 'I', chr(196) . chr(175) => 'i',
      chr(196) . chr(176) => 'I', chr(196) . chr(177) => 'i',
      chr(196) . chr(178) => 'IJ', chr(196) . chr(179) => 'ij',
      chr(196) . chr(180) => 'J', chr(196) . chr(181) => 'j',
      chr(196) . chr(182) => 'K', chr(196) . chr(183) => 'k',
      chr(196) . chr(184) => 'k', chr(196) . chr(185) => 'L',
      chr(196) . chr(186) => 'l', chr(196) . chr(187) => 'L',
      chr(196) . chr(188) => 'l', chr(196) . chr(189) => 'L',
      chr(196) . chr(190) => 'l', chr(196) . chr(191) => 'L',
      chr(197) . chr(128) => 'l', chr(197) . chr(129) => 'L',
      chr(197) . chr(130) => 'l', chr(197) . chr(131) => 'N',
      chr(197) . chr(132) => 'n', chr(197) . chr(133) => 'N',
      chr(197) . chr(134) => 'n', chr(197) . chr(135) => 'N',
      chr(197) . chr(136) => 'n', chr(197) . chr(137) => 'N',
      chr(197) . chr(138) => 'n', chr(197) . chr(139) => 'N',
      chr(197) . chr(140) => 'O', chr(197) . chr(141) => 'o',
      chr(197) . chr(142) => 'O', chr(197) . chr(143) => 'o',
      chr(197) . chr(144) => 'O', chr(197) . chr(145) => 'o',
      chr(197) . chr(146) => 'OE', chr(197) . chr(147) => 'oe',
      chr(197) . chr(148) => 'R', chr(197) . chr(149) => 'r',
      chr(197) . chr(150) => 'R', chr(197) . chr(151) => 'r',
      chr(197) . chr(152) => 'R', chr(197) . chr(153) => 'r',
      chr(197) . chr(154) => 'S', chr(197) . chr(155) => 's',
      chr(197) . chr(156) => 'S', chr(197) . chr(157) => 's',
      chr(197) . chr(158) => 'S', chr(197) . chr(159) => 's',
      chr(197) . chr(160) => 'S', chr(197) . chr(161) => 's',
      chr(197) . chr(162) => 'T', chr(197) . chr(163) => 't',
      chr(197) . chr(164) => 'T', chr(197) . chr(165) => 't',
      chr(197) . chr(166) => 'T', chr(197) . chr(167) => 't',
      chr(197) . chr(168) => 'U', chr(197) . chr(169) => 'u',
      chr(197) . chr(170) => 'U', chr(197) . chr(171) => 'u',
      chr(197) . chr(172) => 'U', chr(197) . chr(173) => 'u',
      chr(197) . chr(174) => 'U', chr(197) . chr(175) => 'u',
      chr(197) . chr(176) => 'U', chr(197) . chr(177) => 'u',
      chr(197) . chr(178) => 'U', chr(197) . chr(179) => 'u',
      chr(197) . chr(180) => 'W', chr(197) . chr(181) => 'w',
      chr(197) . chr(182) => 'Y', chr(197) . chr(183) => 'y',
      chr(197) . chr(184) => 'Y', chr(197) . chr(185) => 'Z',
      chr(197) . chr(186) => 'z', chr(197) . chr(187) => 'Z',
      chr(197) . chr(188) => 'z', chr(197) . chr(189) => 'Z',
      chr(197) . chr(190) => 'z', chr(197) . chr(191) => 's',
      // Euro Sign
      chr(226) . chr(130) . chr(172) => 'E'
    );
  }

  // transliterate
  return strtr($string, $charmap);
}

function is_slug($str) {
  return $str == slug($str);
}

Answer 4

还有来自d7的这个你可以复制到你的项目:

http://api.drupal.org/api/function/drupal_clean_css_identifier/7