diff options
Diffstat (limited to 'program/lib/html2text.php')
| -rw-r--r-- | program/lib/html2text.php | 96 |
1 files changed, 58 insertions, 38 deletions
diff --git a/program/lib/html2text.php b/program/lib/html2text.php index 1ab16055b..9fc96eac7 100644 --- a/program/lib/html2text.php +++ b/program/lib/html2text.php @@ -145,7 +145,6 @@ class html2text var $search = array( "/\r/", // Non-legal carriage return "/[\n\t]+/", // Newlines and tabs - '/[ ]{2,}/', // Runs of spaces, pre-handling '/<script[^>]*>.*?<\/script>/i', // <script>s -- which strip_tags supposedly has problems with '/<style[^>]*>.*?<\/style>/i', // <style>s -- which strip_tags supposedly has problems with '/<p[^>]*>/i', // <P> @@ -161,22 +160,6 @@ class html2text '/(<table[^>]*>|<\/table>)/i', // <table> and </table> '/(<tr[^>]*>|<\/tr>)/i', // <tr> and </tr> '/<td[^>]*>(.*?)<\/td>/i', // <td> and </td> - '/&(nbsp|#160);/i', // Non-breaking space - '/&(quot|rdquo|ldquo|#8220|#8221|#147|#148);/i', - // Double quotes - '/&(apos|rsquo|lsquo|#8216|#8217);/i', // Single quotes - '/>/i', // Greater-than - '/</i', // Less-than - '/&(copy|#169);/i', // Copyright - '/&(trade|#8482|#153);/i', // Trademark - '/&(reg|#174);/i', // Registered - '/&(mdash|#151|#8212);/i', // mdash - '/&(ndash|minus|#8211|#8722);/i', // ndash - '/&(bull|#149|#8226);/i', // Bullet - '/&(pound|#163);/i', // Pound sign - '/&(euro|#8364);/i', // Euro sign - '/&(amp|#38);/i', // Ampersand: see _converter() - '/[ ]{2,}/' // Runs of spaces, post-handling ); /** @@ -189,7 +172,6 @@ class html2text var $replace = array( '', // Non-legal carriage return ' ', // Newlines and tabs - ' ', // Runs of spaces, pre-handling '', // <script>s -- which strip_tags supposedly has problems with '', // <style>s -- which strip_tags supposedly has problems with "\n\n", // <P> @@ -205,6 +187,43 @@ class html2text "\n\n", // <table> and </table> "\n", // <tr> and </tr> "\t\t\\1\n", // <td> and </td> + ); + + /** + * List of preg* regular expression patterns to search for, + * used in conjunction with $ent_replace. + * + * @var array $ent_search + * @access public + * @see $ent_replace + */ + var $ent_search = array( + '/&(nbsp|#160);/i', // Non-breaking space + '/&(quot|rdquo|ldquo|#8220|#8221|#147|#148);/i', + // Double quotes + '/&(apos|rsquo|lsquo|#8216|#8217);/i', // Single quotes + '/>/i', // Greater-than + '/</i', // Less-than + '/&(copy|#169);/i', // Copyright + '/&(trade|#8482|#153);/i', // Trademark + '/&(reg|#174);/i', // Registered + '/&(mdash|#151|#8212);/i', // mdash + '/&(ndash|minus|#8211|#8722);/i', // ndash + '/&(bull|#149|#8226);/i', // Bullet + '/&(pound|#163);/i', // Pound sign + '/&(euro|#8364);/i', // Euro sign + '/&(amp|#38);/i', // Ampersand: see _converter() + '/[ ]{2,}/', // Runs of spaces, post-handling + ); + + /** + * List of pattern replacements corresponding to patterns searched. + * + * @var array $ent_replace + * @access public + * @see $ent_search + */ + var $ent_replace = array( ' ', // Non-breaking space '"', // Double quotes "'", // Single quotes @@ -219,7 +238,7 @@ class html2text '£', 'EUR', // Euro sign. € ? '|+|amp|+|', // Ampersand: see _converter() - ' ' // Runs of spaces, post-handling + ' ', // Runs of spaces, post-handling ); /** @@ -303,7 +322,7 @@ class html2text * @see _build_link_list() */ var $_link_list = ''; - + /** * Number of valid links detected in the text, used for plain text * display (rendered similar to footnotes). @@ -314,15 +333,15 @@ class html2text */ var $_link_count = 0; - /** - * Boolean flag, true if a table of link URLs should be listed after the text. - * - * @var boolean $_do_links - * @access private - * @see html2text() + /** + * Boolean flag, true if a table of link URLs should be listed after the text. + * + * @var boolean $_do_links + * @access private + * @see html2text() */ var $_do_links = true; - + /** * Constructor. * @@ -492,15 +511,21 @@ class html2text // Convert <PRE> $this->_convert_pre($text); - // Run our defined search-and-replace + // Run our defined tags search-and-replace $text = preg_replace($this->search, $this->replace, $text); + // Run our defined tags search-and-replace with callback + $text = preg_replace_callback($this->callback_search, array('html2text', '_preg_callback'), $text); + + // Strip any other HTML tags + $text = strip_tags($text, $this->allowed_tags); + + // Run our defined entities/characters search-and-replace + $text = preg_replace($this->ent_search, $this->ent_replace, $text); + // Replace known html entities $text = html_entity_decode($text, ENT_COMPAT, 'UTF-8'); - // Run our defined search-and-replace with callback - $text = preg_replace_callback($this->callback_search, array('html2text', '_preg_callback'), $text); - // Remove unknown/unhandled entities (this cannot be done in search-and-replace block) $text = preg_replace('/&([a-zA-Z0-9]{2,6}|#[0-9]{2,4});/', '', $text); @@ -508,15 +533,12 @@ class html2text // This properly handles situation of "&quot;" in input string $text = str_replace('|+|amp|+|', '&', $text); - // Strip any other HTML tags - $text = strip_tags($text, $this->allowed_tags); - // Bring down number of empty lines to 2 max $text = preg_replace("/\n\s+\n/", "\n\n", $text); $text = preg_replace("/[\n]{3,}/", "\n\n", $text); // remove leading empty lines (can be produced by eg. P tag on the beginning) - $text = preg_replace('/^\n+/', '', $text); + $text = ltrim($text, "\n"); // Wrap the text to a readable format // for PHP versions >= 4.0.2. Default width is 75 @@ -544,9 +566,7 @@ class html2text if ( !$this->_do_links ) return $display; - if ( substr($link, 0, 7) == 'http://' || substr($link, 0, 8) == 'https://' || - substr($link, 0, 7) == 'mailto:' - ) { + if ( preg_match('!^(https?://|mailto:)!', $link) ) { $this->_link_count++; $this->_link_list .= '[' . $this->_link_count . "] $link\n"; $additional = ' [' . $this->_link_count . ']'; |