diff options
Diffstat (limited to 'system/helpers/typography_helper.php')
| -rw-r--r-- | system/helpers/typography_helper.php | 59 |
1 files changed, 57 insertions, 2 deletions
diff --git a/system/helpers/typography_helper.php b/system/helpers/typography_helper.php index 5621e6dd0..712b57509 100644 --- a/system/helpers/typography_helper.php +++ b/system/helpers/typography_helper.php @@ -54,16 +54,71 @@ if ( ! function_exists('nl2br_except_pre')) * * @access public * @param string + * @param bool whether to allow javascript event handlers * @param bool whether to reduce multiple instances of double newlines to two * @return string */ if ( ! function_exists('auto_typography')) { - function auto_typography($str, $reduce_linebreaks = FALSE) + function auto_typography($str, $strip_js_event_handlers = TRUE, $reduce_linebreaks = FALSE) { $CI =& get_instance(); $CI->load->library('typography'); - return $CI->typography->auto_typography($str, $reduce_linebreaks); + return $CI->typography->auto_typography($str, $strip_js_event_handlers, $reduce_linebreaks); + } +} + + +// -------------------------------------------------------------------- + +/** + * HTML Entities Decode + * + * This function is a replacement for html_entity_decode() + * + * In some versions of PHP the native function does not work + * when UTF-8 is the specified character set, so this gives us + * a work-around. More info here: + * http://bugs.php.net/bug.php?id=25670 + * + * NOTE: html_entity_decode() has a bug in some PHP versions when UTF-8 is the + * character set, and the PHP developers said they were not back porting the + * fix to versions other than PHP 5.x. + * + * @access public + * @param string + * @return string + */ +if ( ! function_exists('entity_decode')) +{ + function entity_decode($str, $charset='UTF-8') + { + if (stristr($str, '&') === FALSE) return $str; + + // The reason we are not using html_entity_decode() by itself is because + // while it is not technically correct to leave out the semicolon + // at the end of an entity most browsers will still interpret the entity + // correctly. html_entity_decode() does not convert entities without + // semicolons, so we are left with our own little solution here. Bummer. + + if (function_exists('html_entity_decode') && (strtolower($charset) != 'utf-8' OR version_compare(phpversion(), '5.0.0', '>='))) + { + $str = html_entity_decode($str, ENT_COMPAT, $charset); + $str = preg_replace('~&#x(0*[0-9a-f]{2,5})~ei', 'chr(hexdec("\\1"))', $str); + return preg_replace('~&#([0-9]{2,4})~e', 'chr(\\1)', $str); + } + + // Numeric Entities + $str = preg_replace('~&#x(0*[0-9a-f]{2,5});{0,1}~ei', 'chr(hexdec("\\1"))', $str); + $str = preg_replace('~&#([0-9]{2,4});{0,1}~e', 'chr(\\1)', $str); + + // Literal Entities - Slightly slow so we do another check + if (stristr($str, '&') === FALSE) + { + $str = strtr($str, array_flip(get_html_translation_table(HTML_ENTITIES))); + } + + return $str; } } |