diff options
Diffstat (limited to 'system/helpers/text_helper.php')
| -rwxr-xr-x[-rw-r--r--] | system/helpers/text_helper.php | 319 |
1 files changed, 195 insertions, 124 deletions
diff --git a/system/helpers/text_helper.php b/system/helpers/text_helper.php index 1e672937b..47e6ccc93 100644..100755 --- a/system/helpers/text_helper.php +++ b/system/helpers/text_helper.php @@ -2,11 +2,11 @@ /** * CodeIgniter * - * An open source application development framework for PHP 4.3.2 or newer + * An open source application development framework for PHP 5.1.6 or newer * * @package CodeIgniter * @author ExpressionEngine Dev Team - * @copyright Copyright (c) 2008 - 2010, EllisLab, Inc. + * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. * @license http://codeigniter.com/user_guide/license.html * @link http://codeigniter.com * @since Version 1.0 @@ -37,7 +37,7 @@ * @param integer * @param string the end character. Usually an ellipsis * @return string - */ + */ if ( ! function_exists('word_limiter')) { function word_limiter($str, $limit = 100, $end_char = '…') @@ -46,18 +46,18 @@ if ( ! function_exists('word_limiter')) { return $str; } - + preg_match('/^\s*+(?:\S++\s*+){1,'.(int) $limit.'}/', $str, $matches); - + if (strlen($str) == strlen($matches[0])) { $end_char = ''; } - + return rtrim($matches[0]).$end_char; } } - + // ------------------------------------------------------------------------ /** @@ -71,7 +71,7 @@ if ( ! function_exists('word_limiter')) * @param integer * @param string the end character. Usually an ellipsis * @return string - */ + */ if ( ! function_exists('character_limiter')) { function character_limiter($str, $n = 500, $end_char = '…') @@ -80,7 +80,7 @@ if ( ! function_exists('character_limiter')) { return $str; } - + $str = preg_replace("/\s+/", ' ', str_replace(array("\r\n", "\r", "\n"), ' ', $str)); if (strlen($str) <= $n) @@ -92,16 +92,16 @@ if ( ! function_exists('character_limiter')) foreach (explode(' ', trim($str)) as $val) { $out .= $val.' '; - + if (strlen($out) >= $n) { $out = trim($out); return (strlen($out) == strlen($str)) ? $out : $out.$end_char; - } + } } } } - + // ------------------------------------------------------------------------ /** @@ -112,21 +112,21 @@ if ( ! function_exists('character_limiter')) * @access public * @param string * @return string - */ + */ if ( ! function_exists('ascii_to_entities')) { function ascii_to_entities($str) { - $count = 1; - $out = ''; - $temp = array(); - - for ($i = 0, $s = strlen($str); $i < $s; $i++) - { - $ordinal = ord($str[$i]); - - if ($ordinal < 128) - { + $count = 1; + $out = ''; + $temp = array(); + + for ($i = 0, $s = strlen($str); $i < $s; $i++) + { + $ordinal = ord($str[$i]); + + if ($ordinal < 128) + { /* If the $temp array has a value but we have moved on, then it seems only fair that we output that entity and restart $temp before continuing. -Paul @@ -138,31 +138,31 @@ if ( ! function_exists('ascii_to_entities')) } $out .= $str[$i]; - } - else - { - if (count($temp) == 0) - { - $count = ($ordinal < 224) ? 2 : 3; - } - - $temp[] = $ordinal; - - if (count($temp) == $count) - { - $number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64); - - $out .= '&#'.$number.';'; - $count = 1; - $temp = array(); - } - } - } - - return $out; + } + else + { + if (count($temp) == 0) + { + $count = ($ordinal < 224) ? 2 : 3; + } + + $temp[] = $ordinal; + + if (count($temp) == $count) + { + $number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64); + + $out .= '&#'.$number.';'; + $count = 1; + $temp = array(); + } + } + } + + return $out; } } - + // ------------------------------------------------------------------------ /** @@ -174,51 +174,51 @@ if ( ! function_exists('ascii_to_entities')) * @param string * @param bool * @return string - */ + */ if ( ! function_exists('entities_to_ascii')) { function entities_to_ascii($str, $all = TRUE) { - if (preg_match_all('/\&#(\d+)\;/', $str, $matches)) - { - for ($i = 0, $s = count($matches['0']); $i < $s; $i++) - { - $digits = $matches['1'][$i]; - - $out = ''; - - if ($digits < 128) - { - $out .= chr($digits); - - } - elseif ($digits < 2048) - { - $out .= chr(192 + (($digits - ($digits % 64)) / 64)); - $out .= chr(128 + ($digits % 64)); - } - else - { - $out .= chr(224 + (($digits - ($digits % 4096)) / 4096)); - $out .= chr(128 + ((($digits % 4096) - ($digits % 64)) / 64)); - $out .= chr(128 + ($digits % 64)); - } - - $str = str_replace($matches['0'][$i], $out, $str); - } - } - - if ($all) - { - $str = str_replace(array("&", "<", ">", """, "'", "-"), - array("&","<",">","\"", "'", "-"), - $str); - } - - return $str; + if (preg_match_all('/\&#(\d+)\;/', $str, $matches)) + { + for ($i = 0, $s = count($matches['0']); $i < $s; $i++) + { + $digits = $matches['1'][$i]; + + $out = ''; + + if ($digits < 128) + { + $out .= chr($digits); + + } + elseif ($digits < 2048) + { + $out .= chr(192 + (($digits - ($digits % 64)) / 64)); + $out .= chr(128 + ($digits % 64)); + } + else + { + $out .= chr(224 + (($digits - ($digits % 4096)) / 4096)); + $out .= chr(128 + ((($digits % 4096) - ($digits % 64)) / 64)); + $out .= chr(128 + ($digits % 64)); + } + + $str = str_replace($matches['0'][$i], $out, $str); + } + } + + if ($all) + { + $str = str_replace(array("&", "<", ">", """, "'", "-"), + array("&","<",">","\"", "'", "-"), + $str); + } + + return $str; } } - + // ------------------------------------------------------------------------ /** @@ -233,7 +233,7 @@ if ( ! function_exists('entities_to_ascii')) * @param string the array of censoered words * @param string the optional replacement value * @return string - */ + */ if ( ! function_exists('word_censor')) { function word_censor($str, $censored, $replacement = '') @@ -242,13 +242,13 @@ if ( ! function_exists('word_censor')) { return $str; } - - $str = ' '.$str.' '; + + $str = ' '.$str.' '; // \w, \b and a few others do not match on a unicode character // set for performance reasons. As a result words like über // will not match on a word boundary. Instead, we'll assume that - // a bad word will be bookended by any of these characters. + // a bad word will be bookeneded by any of these characters. $delim = '[-_\'\"`(){}<>\[\]|!?@#%&,.:;^~*+=\/ 0-9\n\r\t]'; foreach ($censored as $badword) @@ -263,10 +263,10 @@ if ( ! function_exists('word_censor')) } } - return trim($str); + return trim($str); } } - + // ------------------------------------------------------------------------ /** @@ -277,26 +277,26 @@ if ( ! function_exists('word_censor')) * @access public * @param string the text string * @return string - */ + */ if ( ! function_exists('highlight_code')) { function highlight_code($str) - { + { // The highlight string function encodes and highlights // brackets so we need them to start raw $str = str_replace(array('<', '>'), array('<', '>'), $str); - + // Replace any existing PHP tags to temporary markers so they don't accidentally // break the string out of PHP, and thus, thwart the highlighting. - - $str = str_replace(array('<?', '?>', '<%', '%>', '\\', '</script>'), + + $str = str_replace(array('<?', '?>', '<%', '%>', '\\', '</script>'), array('phptagopen', 'phptagclose', 'asptagopen', 'asptagclose', 'backslashtmp', 'scriptclose'), $str); // The highlight_string function requires that the text be surrounded // by PHP tags, which we will remove later $str = '<?php '.$str.' ?>'; // <? - // All the magic happens here, baby! + // All the magic happens here, baby! $str = highlight_string($str, TRUE); // Prior to PHP 5, the highligh function used icky <font> tags @@ -307,20 +307,20 @@ if ( ! function_exists('highlight_code')) $str = str_replace(array('<font ', '</font>'), array('<span ', '</span>'), $str); $str = preg_replace('#color="(.*?)"#', 'style="color: \\1"', $str); } - + // Remove our artificially added PHP, and the syntax highlighting that came with it $str = preg_replace('/<span style="color: #([A-Z0-9]+)"><\?php( | )/i', '<span style="color: #$1">', $str); $str = preg_replace('/(<span style="color: #[A-Z0-9]+">.*?)\?><\/span>\n<\/span>\n<\/code>/is', "$1</span>\n</span>\n</code>", $str); $str = preg_replace('/<span style="color: #[A-Z0-9]+"\><\/span>/i', '', $str); - + // Replace our markers back to PHP tags. $str = str_replace(array('phptagopen', 'phptagclose', 'asptagopen', 'asptagclose', 'backslashtmp', 'scriptclose'), array('<?', '?>', '<%', '%>', '\\', '</script>'), $str); - + return $str; } } - + // ------------------------------------------------------------------------ /** @@ -334,7 +334,7 @@ if ( ! function_exists('highlight_code')) * @param string the openging tag to precede the phrase with * @param string the closing tag to end the phrase with * @return string - */ + */ if ( ! function_exists('highlight_phrase')) { function highlight_phrase($str, $phrase, $tag_open = '<strong>', $tag_close = '</strong>') @@ -343,7 +343,7 @@ if ( ! function_exists('highlight_phrase')) { return ''; } - + if ($phrase != '') { return preg_replace('/('.preg_quote($phrase, '/').')/i', $tag_open."\\1".$tag_close, $str); @@ -352,7 +352,36 @@ if ( ! function_exists('highlight_phrase')) return $str; } } - + +// ------------------------------------------------------------------------ + +/** + * Convert Accented Foreign Characters to ASCII + * + * @access public + * @param string the text string + * @return string + */ +if ( ! function_exists('convert_accented_characters')) +{ + function convert_accented_characters($str) + { + if ( ! file_exists(APPPATH.'config/foreign_chars'.EXT)) + { + return $str; + } + + include APPPATH.'config/foreign_chars'.EXT; + + if ( ! isset($foreign_characters)) + { + return $str; + } + + return preg_replace(array_keys($foreign_characters), array_values($foreign_characters), $str); + } +} + // ------------------------------------------------------------------------ /** @@ -366,7 +395,7 @@ if ( ! function_exists('highlight_phrase')) * @param string the text string * @param integer the number of characters to wrap at * @return string - */ + */ if ( ! function_exists('word_wrap')) { function word_wrap($str, $charlim = '76') @@ -374,47 +403,47 @@ if ( ! function_exists('word_wrap')) // Se the character limit if ( ! is_numeric($charlim)) $charlim = 76; - + // Reduce multiple spaces $str = preg_replace("| +|", " ", $str); - + // Standardize newlines if (strpos($str, "\r") !== FALSE) { - $str = str_replace(array("\r\n", "\r"), "\n", $str); + $str = str_replace(array("\r\n", "\r"), "\n", $str); } - - // If the current word is surrounded by {unwrap} tags we'll + + // If the current word is surrounded by {unwrap} tags we'll // strip the entire chunk and replace it with a marker. $unwrap = array(); if (preg_match_all("|(\{unwrap\}.+?\{/unwrap\})|s", $str, $matches)) { for ($i = 0; $i < count($matches['0']); $i++) { - $unwrap[] = $matches['1'][$i]; + $unwrap[] = $matches['1'][$i]; $str = str_replace($matches['1'][$i], "{{unwrapped".$i."}}", $str); } } - - // Use PHP's native function to do the initial wordwrap. - // We set the cut flag to FALSE so that any individual words that are + + // Use PHP's native function to do the initial wordwrap. + // We set the cut flag to FALSE so that any individual words that are // too long get left alone. In the next step we'll deal with them. $str = wordwrap($str, $charlim, "\n", FALSE); - + // Split the string into individual lines of text and cycle through them $output = ""; - foreach (explode("\n", $str) as $line) + foreach (explode("\n", $str) as $line) { // Is the line within the allowed character count? // If so we'll join it to the output and continue if (strlen($line) <= $charlim) { - $output .= $line."\n"; + $output .= $line."\n"; continue; } - + $temp = ''; - while((strlen($line)) > $charlim) + while((strlen($line)) > $charlim) { // If the over-length word is a URL we won't wrap it if (preg_match("!\[url.+\]|://|wwww.!", $line)) @@ -426,12 +455,12 @@ if ( ! function_exists('word_wrap')) $temp .= substr($line, 0, $charlim-1); $line = substr($line, $charlim-1); } - - // If $temp contains data it means we had to split up an over-length + + // If $temp contains data it means we had to split up an over-length // word into smaller chunks so we'll add it back to our current line if ($temp != '') { - $output .= $temp . "\n" . $line; + $output .= $temp."\n".$line; } else { @@ -443,7 +472,7 @@ if ( ! function_exists('word_wrap')) // Put our markers back if (count($unwrap) > 0) - { + { foreach ($unwrap as $key => $val) { $output = str_replace("{{unwrapped".$key."}}", $val, $output); @@ -453,10 +482,52 @@ if ( ! function_exists('word_wrap')) // Remove the unwrap tags $output = str_replace(array('{unwrap}', '{/unwrap}'), '', $output); - return $output; + return $output; } } +// ------------------------------------------------------------------------ + +/** + * Ellipsize String + * + * This function will strip tags from a string, split it at its max_length and ellipsize + * + * @param string string to ellipsize + * @param integer max length of string + * @param mixed int (1|0) or float, .5, .2, etc for position to split + * @param string ellipsis ; Default '...' + * @return string ellipsized string + */ +if ( ! function_exists('ellipsize')) +{ + function ellipsize($str, $max_length, $position = 1, $ellipsis = '…') + { + // Strip tags + $str = trim(strip_tags($str)); + + // Is the string long enough to ellipsize? + if (strlen($str) <= $max_length) + { + return $str; + } + + $beg = substr($str, 0, floor($max_length * $position)); + + $position = ($position > 1) ? 1 : $position; + + if ($position === 1) + { + $end = substr($str, 0, -($max_length - strlen($beg))); + } + else + { + $end = substr($str, -($max_length - strlen($beg))); + } + + return $beg.$ellipsis.$end; + } +} /* End of file text_helper.php */ /* Location: ./system/helpers/text_helper.php */
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