Subversion-Projekte lars-tiefland.php_share

<?php

require_once(HTML2PS_DIR.'inline.content.builder.php');

class InlineContentBuilderNormal extends InlineContentBuilder {

  function InlineContentBuilderNormal() {

    $this->InlineContentBuilder();

  }

  /**

   * CSS 2.1 p.16.6

   * white-space: normal

   * This value directs user agents to collapse sequences of whitespace, and break lines as necessary to fill line boxes.

   */

  function build(&$box, $text, &$pipeline) {

    $text = $this->remove_leading_linefeeds($text);

    $text = $this->remove_trailing_linefeeds($text);

    $content = $this->collapse_whitespace($text);

    // Whitespace-only text nodes sill result on only one whitespace box

    if (trim($content) === '') {

      $whitespace =& WhitespaceBox::create($pipeline);

      $box->add_child($whitespace);

      return;

    }

    // Add leading whispace box, if content stars with a space

    if (preg_match('/ /u', substr($content,0,1))) {

      $whitespace =& WhitespaceBox::create($pipeline);

      $box->add_child($whitespace);

    }

    $words = $this->break_into_words($content);

    $size = count($words);

    $pos = 0;

    // Check if text content has trailing whitespace

    $last_whitespace = substr($content, strlen($content) - 1, 1) == ' ';

    foreach ($words as $word) {

      $box->process_word($word, $pipeline);

      $pos++;

      $is_last_word = ($pos == $size);

      // Whitespace boxes should be added

      // 1) between words

      // 2) after the last word IF there was a space at the content end

      if (!$is_last_word ||

          $last_whitespace) {

        $whitespace =& WhitespaceBox::create($pipeline);

        $box->add_child($whitespace);

      };

    };

  }

}

?>