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-rw-r--r--system/helpers/text_helper.php422
1 files changed, 1 insertions, 421 deletions
diff --git a/system/helpers/text_helper.php b/system/helpers/text_helper.php
index d315db0ff..fb50ba9d7 100644
--- a/system/helpers/text_helper.php
+++ b/system/helpers/text_helper.php
@@ -1,421 +1 @@
-<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package CodeIgniter
- * @author Rick Ellis
- * @copyright Copyright (c) 2006, EllisLab, Inc.
- * @license http://www.codeigniter.com/user_guide/license.html
- * @link http://www.codeigniter.com
- * @since Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * CodeIgniter Text Helpers
- *
- * @package CodeIgniter
- * @subpackage Helpers
- * @category Helpers
- * @author Rick Ellis
- * @link http://www.codeigniter.com/user_guide/helpers/text_helper.html
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * Word Limiter
- *
- * Limits a string to X number of words.
- *
- * @access public
- * @param string
- * @param integer
- * @param string the end character. Usually an ellipsis
- * @return string
- */
-function word_limiter($str, $n = 100, $end_char = '&#8230;')
-{
- if (strlen($str) < $n)
- {
- return $str;
- }
-
- $words = explode(' ', preg_replace("/\s+/", ' ', preg_replace("/(\r\n|\r|\n)/", " ", $str)));
-
- if (count($words) <= $n)
- {
- return $str;
- }
-
- $str = '';
- for ($i = 0; $i < $n; $i++)
- {
- $str .= $words[$i].' ';
- }
-
- return trim($str).$end_char;
-}
-
-// ------------------------------------------------------------------------
-
-/**
- * Character Limiter
- *
- * Limits the string based on the character count. Preserves complete words
- * so the character count may not be exactly as specified.
- *
- * @access public
- * @param string
- * @param integer
- * @param string the end character. Usually an ellipsis
- * @return string
- */
-function character_limiter($str, $n = 500, $end_char = '&#8230;')
-{
- if (strlen($str) < $n)
- {
- return $str;
- }
-
- $str = preg_replace("/\s+/", ' ', preg_replace("/(\r\n|\r|\n)/", " ", $str));
-
- if (strlen($str) <= $n)
- {
- return $str;
- }
-
- $out = "";
- foreach (explode(' ', trim($str)) as $val)
- {
- $out .= $val.' ';
- if (strlen($out) >= $n)
- {
- return trim($out).$end_char;
- }
- }
-}
-
-// ------------------------------------------------------------------------
-
-/**
- * High ASCII to Entities
- *
- * Converts High ascii text and MS Word special characters to character entities
- *
- * @access public
- * @param string
- * @return string
- */
-function ascii_to_entities($str)
-{
- $count = 1;
- $out = '';
- $temp = array();
-
- for ($i = 0, $s = strlen($str); $i < $s; $i++)
- {
- $ordinal = ord($str[$i]);
-
- if ($ordinal < 128)
- {
- $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 $out;
-}
-
-// ------------------------------------------------------------------------
-
-/**
- * Entities to ASCII
- *
- * Converts character entities back to ASCII
- *
- * @access public
- * @param string
- * @param bool
- * @return string
- */
-function entities_to_ascii($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("&amp;", "&lt;", "&gt;", "&quot;", "&apos;", "&#45;"),
- array("&","<",">","\"", "'", "-"),
- $str);
- }
-
- return $str;
-}
-
-// ------------------------------------------------------------------------
-
-/**
- * Word Censoring Function
- *
- * Supply a string and an array of disallowed words and any
- * matched words will be converted to #### or to the replacement
- * word you've submitted.
- *
- * @access public
- * @param string the text string
- * @param string the array of censoered words
- * @param string the optional replacement value
- * @return string
- */
-function word_censor($str, $censored, $replacement = '')
-{
- if ( ! is_array($censored))
- {
- return $str;
- }
-
- $str = ' '.$str.' ';
- foreach ($censored as $badword)
- {
- if ($replacement != '')
- {
- $str = preg_replace("/\b(".str_replace('\*', '\w*?', preg_quote($badword)).")\b/i", $replacement, $str);
- }
- else
- {
- $str = preg_replace("/\b(".str_replace('\*', '\w*?', preg_quote($badword)).")\b/ie", "str_repeat('#', strlen('\\1'))", $str);
- }
- }
-
- return trim($str);
-}
-
-// ------------------------------------------------------------------------
-
-/**
- * Code Highlighter
- *
- * Colorizes code strings
- *
- * @access public
- * @param string the text string
- * @return string
- */
-function highlight_code($str)
-{
- // The highlight string function encodes and highlights
- // brackets so we need them to start raw
- $str = str_replace(array('&lt;', '&gt;'), 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('&lt;?php', '?&gt;', '\\'), array('phptagopen', 'phptagclose', 'backslashtmp'), $str);
-
- // The highlight_string function requires that the text be surrounded
- // by PHP tags. Since we don't know if A) the submitted text has PHP tags,
- // or B) whether the PHP tags enclose the entire string, we will add our
- // own PHP tags around the string along with some markers to make replacement easier later
-
- $str = '<?php //tempstart'."\n".$str.'//tempend ?>';
-
- // All the magic happens here, baby!
- $str = highlight_string($str, TRUE);
-
- // Prior to PHP 5, the highlight function used icky font tags
- // so we'll replace them with span tags.
- if (abs(phpversion()) < 5)
- {
- $str = str_replace(array('<font ', '</font>'), array('<span ', '</span>'), $str);
- $str = preg_replace('#color="(.*?)"#', 'style="color: \\1"', $str);
- }
-
- // Remove our artificially added PHP
- $str = preg_replace("#\<code\>.+?//tempstart\<br />\</span\>#is", "<code>\n", $str);
- $str = preg_replace("#\<code\>.+?//tempstart\<br />#is", "<code>\n", $str);
- $str = preg_replace("#//tempend.+#is", "</span>\n</code>", $str);
-
- // Replace our markers back to PHP tags.
- $str = str_replace(array('phptagopen', 'phptagclose', 'backslashtmp'), array('&lt;?php', '?&gt;', '\\'), $str); //<?
-
- return $str;
-}
-
-// ------------------------------------------------------------------------
-
-/**
- * Phrase Highlighter
- *
- * Highlights a phrase within a text string
- *
- * @access public
- * @param string the text string
- * @param string the phrase you'd like to highlight
- * @param string the openging tag to precede the phrase with
- * @param string the closing tag to end the phrase with
- * @return string
- */
-function highlight_phrase($str, $phrase, $tag_open = '<strong>', $tag_close = '</strong>')
-{
- if ($str == '')
- {
- return '';
- }
-
- if ($phrase != '')
- {
- return preg_replace('/('.preg_quote($phrase).')/i', $tag_open."\\1".$tag_close, $str);
- }
-
- return $str;
-}
-
-// ------------------------------------------------------------------------
-
-/**
- * Word Wrap
- *
- * Wraps text at the specified character. Maintains the integrity of words.
- * Anything placed between {unwrap}{/unwrap} will not be word wrapped, nor
- * will URLs.
- *
- * @access public
- * @param string the text string
- * @param integer the number of characters to wrap at
- * @return string
- */
-function word_wrap($str, $charlim = '76')
-{
- // Se the character limit
- if ( ! is_numeric($charlim))
- $charlim = 76;
-
- // Reduce multiple spaces
- $str = preg_replace("| +|", " ", $str);
-
- // Standardize newlines
- $str = preg_replace("/\r\n|\r/", "\n", $str);
-
- // 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];
- $str = str_replace($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
- // 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 $line)
- {
- // Is the line within the allowed character count?
- // If so we'll join it to the output and continue
- if (strlen($line) <= $charlim)
- {
- $output .= $line."\n";
- continue;
- }
-
- $temp = '';
- while((strlen($line)) > $charlim)
- {
- // If the over-length word is a URL we won't wrap it
- if (preg_match("!\[url.+\]|://|wwww.!", $line))
- {
- break;
- }
-
- // Trim the word down
- $temp .= substr($line, 0, $charlim-1);
- $line = substr($line, $charlim-1);
- }
-
- // If $temp contains data it means we had to split up an over-length
- // word into smaller chunks so we'll add it back to our current line
- if ($temp != '')
- {
- $output .= $temp.$this->newline.$line;
- }
- else
- {
- $output .= $line;
- }
-
- $output .= "\n";
- }
-
- // Put our markers back
- if (count($unwrap) > 0)
- {
- foreach ($unwrap as $key => $val)
- {
- $output = str_replace("{{unwrapped".$key."}}", $val, $output);
- }
- }
-
- // Remove the unwrap tags
- $output = str_replace(array('{unwrap}', '{/unwrap}'), '', $output);
-
- return $output;
-}
-
-
-?> \ No newline at end of file
+<?php if (!defined('BASEPATH')) exit('No direct script access allowed'); /** * CodeIgniter * * An open source application development framework for PHP 4.3.2 or newer * * @package CodeIgniter * @author Rick Ellis * @copyright Copyright (c) 2006, EllisLab, Inc. * @license http://www.codeigniter.com/user_guide/license.html * @link http://www.codeigniter.com * @since Version 1.0 * @filesource */ // ------------------------------------------------------------------------ /** * CodeIgniter Text Helpers * * @package CodeIgniter * @subpackage Helpers * @category Helpers * @author Rick Ellis * @link http://www.codeigniter.com/user_guide/helpers/text_helper.html */ // ------------------------------------------------------------------------ /** * Word Limiter * * Limits a string to X number of words. * * @access public * @param string * @param integer * @param string the end character. Usually an ellipsis * @return string */ function word_limiter($str, $n = 100, $end_char = '&#8230;') { if (strlen($str) < $n) { return $str; } $words = explode(' ', preg_replace("/\s+/", ' ', preg_replace("/(\r\n|\r|\n)/", " ", $str))); if (count($words) <= $n) { return $str; } $str = ''; for ($i = 0; $i < $n; $i++) { $str .= $words[$i].' '; } return trim($str).$end_char; } // ------------------------------------------------------------------------ /** * Character Limiter * * Limits the string based on the character count. Preserves complete words * so the character count may not be exactly as specified. * * @access public * @param string * @param integer * @param string the end character. Usually an ellipsis * @return string */ function character_limiter($str, $n = 500, $end_char = '&#8230;') { if (strlen($str) < $n) { return $str; } $str = preg_replace("/\s+/", ' ', preg_replace("/(\r\n|\r|\n)/", " ", $str)); if (strlen($str) <= $n) { return $str; } $out = ""; foreach (explode(' ', trim($str)) as $val) { $out .= $val.' '; if (strlen($out) >= $n) { return trim($out).$end_char; } } } // ------------------------------------------------------------------------ /** * High ASCII to Entities * * Converts High ascii text and MS Word special characters to character entities * * @access public * @param string * @return string */ function ascii_to_entities($str) { $count = 1; $out = ''; $temp = array(); for ($i = 0, $s = strlen($str); $i < $s; $i++) { $ordinal = ord($str[$i]); if ($ordinal < 128) { $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 $out; } // ------------------------------------------------------------------------ /** * Entities to ASCII * * Converts character entities back to ASCII * * @access public * @param string * @param bool * @return string */ function entities_to_ascii($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("&amp;", "&lt;", "&gt;", "&quot;", "&apos;", "&#45;"), array("&","<",">","\"", "'", "-"), $str); } return $str; } // ------------------------------------------------------------------------ /** * Word Censoring Function * * Supply a string and an array of disallowed words and any * matched words will be converted to #### or to the replacement * word you've submitted. * * @access public * @param string the text string * @param string the array of censoered words * @param string the optional replacement value * @return string */ function word_censor($str, $censored, $replacement = '') { if ( ! is_array($censored)) { return $str; } $str = ' '.$str.' '; foreach ($censored as $badword) { if ($replacement != '') { $str = preg_replace("/\b(".str_replace('\*', '\w*?', preg_quote($badword)).")\b/i", $replacement, $str); } else { $str = preg_replace("/\b(".str_replace('\*', '\w*?', preg_quote($badword)).")\b/ie", "str_repeat('#', strlen('\\1'))", $str); } } return trim($str); } // ------------------------------------------------------------------------ /** * Code Highlighter * * Colorizes code strings * * @access public * @param string the text string * @return string */ function highlight_code($str) { // The highlight string function encodes and highlights // brackets so we need them to start raw $str = str_replace(array('&lt;', '&gt;'), 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('&lt;?php', '?&gt;', '\\'), array('phptagopen', 'phptagclose', 'backslashtmp'), $str); // The highlight_string function requires that the text be surrounded // by PHP tags. Since we don't know if A) the submitted text has PHP tags, // or B) whether the PHP tags enclose the entire string, we will add our // own PHP tags around the string along with some markers to make replacement easier later $str = '<?php //tempstart'."\n".$str.'//tempend ?>'; // All the magic happens here, baby! $str = highlight_string($str, TRUE); // Prior to PHP 5, the highlight function used icky font tags // so we'll replace them with span tags. if (abs(phpversion()) < 5) { $str = str_replace(array('<font ', '</font>'), array('<span ', '</span>'), $str); $str = preg_replace('#color="(.*?)"#', 'style="color: \\1"', $str); } // Remove our artificially added PHP $str = preg_replace("#\<code\>.+?//tempstart\<br />\</span\>#is", "<code>\n", $str); $str = preg_replace("#\<code\>.+?//tempstart\<br />#is", "<code>\n", $str); $str = preg_replace("#//tempend.+#is", "</span>\n</code>", $str); // Replace our markers back to PHP tags. $str = str_replace(array('phptagopen', 'phptagclose', 'backslashtmp'), array('&lt;?php', '?&gt;', '\\'), $str); //<? return $str; } // ------------------------------------------------------------------------ /** * Phrase Highlighter * * Highlights a phrase within a text string * * @access public * @param string the text string * @param string the phrase you'd like to highlight * @param string the openging tag to precede the phrase with * @param string the closing tag to end the phrase with * @return string */ function highlight_phrase($str, $phrase, $tag_open = '<strong>', $tag_close = '</strong>') { if ($str == '') { return ''; } if ($phrase != '') { return preg_replace('/('.preg_quote($phrase).')/i', $tag_open."\\1".$tag_close, $str); } return $str; } // ------------------------------------------------------------------------ /** * Word Wrap * * Wraps text at the specified character. Maintains the integrity of words. * Anything placed between {unwrap}{/unwrap} will not be word wrapped, nor * will URLs. * * @access public * @param string the text string * @param integer the number of characters to wrap at * @return string */ function word_wrap($str, $charlim = '76') { // Se the character limit if ( ! is_numeric($charlim)) $charlim = 76; // Reduce multiple spaces $str = preg_replace("| +|", " ", $str); // Standardize newlines $str = preg_replace("/\r\n|\r/", "\n", $str); // 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]; $str = str_replace($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 // 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 $line) { // Is the line within the allowed character count? // If so we'll join it to the output and continue if (strlen($line) <= $charlim) { $output .= $line."\n"; continue; } $temp = ''; while((strlen($line)) > $charlim) { // If the over-length word is a URL we won't wrap it if (preg_match("!\[url.+\]|://|wwww.!", $line)) { break; } // Trim the word down $temp .= substr($line, 0, $charlim-1); $line = substr($line, $charlim-1); } // If $temp contains data it means we had to split up an over-length // word into smaller chunks so we'll add it back to our current line if ($temp != '') { $output .= $temp . "\n" . $line; } else { $output .= $line; } $output .= "\n"; } // Put our markers back if (count($unwrap) > 0) { foreach ($unwrap as $key => $val) { $output = str_replace("{{unwrapped".$key."}}", $val, $output); } } // Remove the unwrap tags $output = str_replace(array('{unwrap}', '{/unwrap}'), '', $output); return $output; } ?> \ No newline at end of file