| <?php |
| /** |
| * File containing the ezcDocumentPdfDefaultTokenizer class |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| * @package Document |
| * @version //autogen// |
| * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0 |
| */ |
| |
| /** |
| * Tokenizer implementation for common texts, using whitespaces as word |
| * seperators. |
| * |
| * @package Document |
| * @version //autogen// |
| */ |
| class ezcDocumentPdfDefaultTokenizer extends ezcDocumentPdfTokenizer |
| { |
| /** |
| * Split string into words |
| * |
| * This function takes a string and splits it into words. There are |
| * different mechanisms which indicate possible splitting points in the |
| * resulting word stream: |
| * |
| * - self:SPACE: The renderer might render a space |
| * - self:WRAP: The renderer might wrap the line at this position, but will |
| * not render spaces. |
| * |
| * A possible splitting of an english sentence might look like: |
| * |
| * <code> |
| * array( |
| * 'Hello', |
| * self:SPACE, |
| * 'world!', |
| * ); |
| * </code> |
| * |
| * Non breaking spaces should not be splitted into multiple words, so there |
| * will be no break applied. |
| * |
| * @param string $string |
| * @return array |
| */ |
| public function tokenize( $string ) |
| { |
| $string = preg_replace( '(\\s+)', ' ', $string ); |
| $words = preg_split( '(( ))', $string, -1, PREG_SPLIT_DELIM_CAPTURE ); |
| |
| // Convert spaces to the marker constant |
| foreach ( $words as $key => $word ) |
| { |
| if ( $word === '' ) |
| { |
| unset( $words[$key] ); |
| } |
| else if ( $word === ' ' ) |
| { |
| $words[$key] = self::SPACE; |
| } |
| } |
| |
| return array_values( $words ); |
| } |
| } |
| |
| ?> |