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-rw-r--r--system/libraries/Typography.php768
1 files changed, 384 insertions, 384 deletions
diff --git a/system/libraries/Typography.php b/system/libraries/Typography.php
index 3ff0d2f58..29b871e23 100644
--- a/system/libraries/Typography.php
+++ b/system/libraries/Typography.php
@@ -1,385 +1,385 @@
-<?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 ExpressionEngine Dev Team
- * @copyright Copyright (c) 2008, EllisLab, Inc.
- * @license http://codeigniter.com/user_guide/license.html
- * @link http://codeigniter.com
- * @since Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * Typography Class
- *
- *
- * @access private
- * @category Helpers
- * @author ExpressionEngine Dev Team
- * @link http://codeigniter.com/user_guide/helpers/
- */
-class CI_Typography {
-
- // Block level elements that should not be wrapped inside <p> tags
- var $block_elements = 'address|blockquote|div|dl|fieldset|form|h\d|hr|noscript|object|ol|p|pre|script|table|ul';
-
- // Elements that should not have <p> and <br /> tags within them.
- var $skip_elements = 'p|pre|ol|ul|dl|object|table';
-
- // Tags we want the parser to completely ignore when splitting the string.
- var $inline_elements = 'a|abbr|acronym|b|bdo|big|br|button|cite|code|del|dfn|em|i|img|ins|input|label|map|kbd|q|samp|select|small|span|strong|sub|sup|textarea|tt|var';
-
- // whether or not to protect quotes within { curly braces }
- var $protect_braced_quotes = FALSE;
-
- /**
- * Nothing to do here...
- *
- */
- function CI_Typography()
- {
- }
-
- /**
- * Auto Typography
- *
- * This function converts text, making it typographically correct:
- * - Converts double spaces into paragraphs.
- * - Converts single line breaks into <br /> tags
- * - Converts single and double quotes into correctly facing curly quote entities.
- * - Converts three dots into ellipsis.
- * - Converts double dashes into em-dashes.
- * - Converts two spaces into entities
- *
- * @access public
- * @param string
- * @param bool whether to reduce more then two consecutive newlines to two
- * @return string
- */
- function auto_typography($str, $reduce_linebreaks = FALSE)
- {
- if ($str == '')
- {
- return '';
- }
-
- // Standardize Newlines to make matching easier
- if (strpos($str, "\r") !== FALSE)
- {
- $str = str_replace(array("\r\n", "\r"), "\n", $str);
- }
-
- // Reduce line breaks. If there are more than two consecutive linebreaks
- // we'll compress them down to a maximum of two since there's no benefit to more.
- if ($reduce_linebreaks === TRUE)
- {
- $str = preg_replace("/\n\n+/", "\n\n", $str);
- }
-
- // Convert quotes within tags to temporary markers. We don't want quotes converted
- // within tags so we'll temporarily convert them to {@DQ} and {@SQ}
- // and we don't want double dashes converted to emdash entities, so they are marked with {@DD}
- // likewise double spaces are converted to {@NBS} to prevent entity conversion
- if (preg_match_all("#\<.+?>#si", $str, $matches))
- {
- for ($i = 0, $total = count($matches[0]); $i < $total; $i++)
- {
- $str = str_replace($matches[0][$i],
- str_replace(array("'",'"','--',' '), array('{@SQ}', '{@DQ}', '{@DD}', '{@NBS}'), $matches[0][$i]),
- $str);
- }
- }
-
- if ($this->protect_braced_quotes === TRUE)
- {
- if (preg_match_all("#\{.+?}#si", $str, $matches))
- {
- for ($i = 0, $total = count($matches[0]); $i < $total; $i++)
- {
- $str = str_replace($matches[0][$i],
- str_replace(array("'",'"'), array('{@SQ}', '{@DQ}'), $matches[0][$i]),
- $str);
- }
- }
- }
-
- // Convert "ignore" tags to temporary marker. The parser splits out the string at every tag
- // it encounters. Certain inline tags, like image tags, links, span tags, etc. will be
- // adversely affected if they are split out so we'll convert the opening bracket < temporarily to: {@TAG}
- $str = preg_replace("#<(/*)(".$this->inline_elements.")([ >])#i", "{@TAG}\\1\\2\\3", $str);
-
- // Split the string at every tag. This expression creates an array with this prototype:
- //
- // [array]
- // {
- // [0] = <opening tag>
- // [1] = Content...
- // [2] = <closing tag>
- // Etc...
- // }
- $chunks = preg_split('/(<(?:[^<>]+(?:"[^"]*"|\'[^\']*\')?)+>)/', $str, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY);
-
- // Build our finalized string. We cycle through the array, skipping tags, and processing the contained text
- $str = '';
- $process = TRUE;
- $paragraph = FALSE;
- foreach ($chunks as $chunk)
- {
- // Are we dealing with a tag? If so, we'll skip the processing for this cycle.
- // Well also set the "process" flag which allows us to skip <pre> tags and a few other things.
- if (preg_match("#<(/*)(".$this->block_elements.").*?>#", $chunk, $match))
- {
- if (preg_match("#".$this->skip_elements."#", $match[2]))
- {
- $process = ($match[1] == '/') ? TRUE : FALSE;
- }
-
- $str .= $chunk;
- continue;
- }
- elseif (preg_match('/<(\/?)([a-z]*).*?>/s', $chunk, $tagmatch))
- {
- if ($tagmatch[1] == '/' && $tagmatch[2] == $this->last_tag)
- {
- $process = FALSE;
- }
- else
- {
- $process = TRUE;
- $this->last_tag = $tagmatch[2];
- }
- }
-
- if ($process == FALSE)
- {
- $str .= $chunk;
- continue;
- }
-
- // Convert Newlines into <p> and <br /> tags
- $str .= $this->format_characters($this->_format_newlines($chunk));
- }
-
- // is the whole of the content inside a block level element?
- if ( ! preg_match("/^<(?:".$this->block_elements.")/i", $str, $match))
- {
- $str = "<p>{$str}</p>";
- }
-
-
- // some special linebreak cleanup
- $str = preg_replace_callback('#<(?!/|'.$this->block_elements.')([^>]*)><p>(.*?)</p><(\w*)#si', array($this, '_linebreak_cleanup'), $str);
-
- // and cleanup empty paragraph tags sitting between two closing tags
- $str = preg_replace('#(</\w+>)<p>(\s*)</p>(</\w+>)#si', '$1$2$3', $str);
-
- // Final clean up
- $table = array(
-
- // If the user submitted their own paragraph tags within the text
- // we will retain them instead of using our tags.
- '/(<p[^>*?]>)<p>/' => '$1', // <?php BBEdit syntax coloring bug fix
-
- // Reduce multiple instances of opening/closing paragraph tags to a single one
- '#(</p>)+#' => '</p>',
- '/(<p>\W*<p>)+/' => '<p>',
-
- // Clean up stray paragraph tags that appear before block level elements
- '#<p></p><('.$this->block_elements.')#' => '<$1',
-
- // Clean up open paragraph tags that appear before block level elements
- '#<p>(\W)<('.$this->block_elements.')#' => '<p></p>$1<$2',
-
- // Clean up stray non-breaking spaces preceeding block elements
- '#[&nbsp; ]+<('.$this->block_elements.')#' => ' <$1',
-
- // Replace the temporary markers we added earlier
- '/\{@TAG\}/' => '<',
- '/\{@DQ\}/' => '"',
- '/\{@SQ\}/' => "'",
- '/\{@DD\}/' => '--',
- '/\{@NBS\}/' => ' '
-
- );
-
- // Do we need to reduce empty lines?
- if ($reduce_linebreaks === TRUE)
- {
- $table['#<p>\n*</p>#'] = '';
- }
- else
- {
- // If we have empty paragraph tags we add a non-breaking space
- // otherwise most browsers won't treat them as true paragraphs
- $table['#<p></p>#'] = '<p>&nbsp;</p>';
- }
-
- return preg_replace(array_keys($table), $table, $str);
-
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Linebreak Cleanup
- *
- * Removes paragraph and line break tags inserted inbetween
- * inline content and a new opening block level element
- *
- * @access private
- * @param array
- * @return string
- */
- function _linebreak_cleanup($match)
- {
- if (in_array($match[3], explode('|', $this->block_elements)))
- {
- return "<{$match[1]}>".str_replace('<br />', '', $match[2])."<{$match[3]}";
- }
- else
- {
- return $match[0];
- }
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Format Characters
- *
- * This function mainly converts double and single quotes
- * to curly entities, but it also converts em-dashes,
- * double spaces, and ampersands
- *
- * @access public
- * @param string
- * @return string
- */
- function format_characters($str)
- {
- static $table;
-
- if ( ! isset($table))
- {
- $table = array(
- // nested smart quotes, opening and closing
- // note that rules for grammar (English) allow only for two levels deep
- // and that single quotes are _supposed_ to always be on the outside
- // but we'll accommodate both
- '/(^|\W|\s)\'"/' => '$1&#8216;&#8220;',
- '/\'"(\s|\W|$)/' => '&#8217;&#8221;$1',
- '/(^|\W|\s)"\'/' => '$1&#8220;&#8216;',
- '/"\'(\s|\W|$)/' => '&#8221;&#8217;$1',
-
- // single quote smart quotes
- '/\'(\s|\W|$)/' => '&#8217;$1',
- '/(^|\W|\s)\'/' => '$1&#8216;',
-
- // double quote smart quotes
- '/"(\s|\W|$)/' => '&#8221;$1',
- '/(^|\W|\s)"/' => '$1&#8220;',
-
- // apostrophes
- "/(\w)'(\w)/" => '$1&#8217;$2',
-
- // Em dash and ellipses dots
- '/\s?\-\-\s?/' => '&#8212;',
- '/(\w)\.{3}/' => '$1&#8230;',
-
- // double space after sentences
- '/(\W) /' => '$1&nbsp; ',
-
- // ampersands, if not a character entity
- '/&(?!#?[a-zA-Z0-9]{2,};)/' => '&amp;'
- );
- }
-
- return preg_replace(array_keys($table), $table, $str);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Format Newlines
- *
- * Converts newline characters into either <p> tags or <br />
- *
- * @access public
- * @param string
- * @return string
- */
- function _format_newlines($str)
- {
- if ($str == '')
- {
- return $str;
- }
-
- if (strpos($str, "\n") === FALSE)
- {
- return $str;
- }
-
- // Convert two consecutive newlines to paragraphs
- $str = str_replace("\n\n", "</p>\n\n<p>", $str);
-
- // Convert single spaces to <br /> tags
- $str = preg_replace("/([^\n])(\n)([^\n])/", "\\1<br />\\2\\3", $str);
-
- // Wrap the whole enchilada in enclosing paragraphs
- if ($str != "\n")
- {
- $str = '<p>'.$str.'</p>';
- }
-
- // Remove empty paragraphs if they are on the first line, as this
- // is a potential unintended consequence of the previous code
- $str = preg_replace("/<p><\/p>(.*)/", "\\1", $str, 1);
-
- return $str;
- }
-
- // ------------------------------------------------------------------------
-
- /**
- * Convert newlines to HTML line breaks except within PRE tags
- *
- * @access public
- * @param string
- * @return string
- */
- function nl2br_except_pre($str)
- {
- $ex = explode("pre>",$str);
- $ct = count($ex);
-
- $newstr = "";
- for ($i = 0; $i < $ct; $i++)
- {
- if (($i % 2) == 0)
- {
- $newstr .= nl2br($ex[$i]);
- }
- else
- {
- $newstr .= $ex[$i];
- }
-
- if ($ct - 1 != $i)
- $newstr .= "pre>";
- }
-
- return $newstr;
- }
-
-}
-// END Typography Class
-
-/* End of file Typography.php */
+<?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 ExpressionEngine Dev Team
+ * @copyright Copyright (c) 2008, EllisLab, Inc.
+ * @license http://codeigniter.com/user_guide/license.html
+ * @link http://codeigniter.com
+ * @since Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Typography Class
+ *
+ *
+ * @access private
+ * @category Helpers
+ * @author ExpressionEngine Dev Team
+ * @link http://codeigniter.com/user_guide/helpers/
+ */
+class CI_Typography {
+
+ // Block level elements that should not be wrapped inside <p> tags
+ var $block_elements = 'address|blockquote|div|dl|fieldset|form|h\d|hr|noscript|object|ol|p|pre|script|table|ul';
+
+ // Elements that should not have <p> and <br /> tags within them.
+ var $skip_elements = 'p|pre|ol|ul|dl|object|table';
+
+ // Tags we want the parser to completely ignore when splitting the string.
+ var $inline_elements = 'a|abbr|acronym|b|bdo|big|br|button|cite|code|del|dfn|em|i|img|ins|input|label|map|kbd|q|samp|select|small|span|strong|sub|sup|textarea|tt|var';
+
+ // whether or not to protect quotes within { curly braces }
+ var $protect_braced_quotes = FALSE;
+
+ /**
+ * Nothing to do here...
+ *
+ */
+ function CI_Typography()
+ {
+ }
+
+ /**
+ * Auto Typography
+ *
+ * This function converts text, making it typographically correct:
+ * - Converts double spaces into paragraphs.
+ * - Converts single line breaks into <br /> tags
+ * - Converts single and double quotes into correctly facing curly quote entities.
+ * - Converts three dots into ellipsis.
+ * - Converts double dashes into em-dashes.
+ * - Converts two spaces into entities
+ *
+ * @access public
+ * @param string
+ * @param bool whether to reduce more then two consecutive newlines to two
+ * @return string
+ */
+ function auto_typography($str, $reduce_linebreaks = FALSE)
+ {
+ if ($str == '')
+ {
+ return '';
+ }
+
+ // Standardize Newlines to make matching easier
+ if (strpos($str, "\r") !== FALSE)
+ {
+ $str = str_replace(array("\r\n", "\r"), "\n", $str);
+ }
+
+ // Reduce line breaks. If there are more than two consecutive linebreaks
+ // we'll compress them down to a maximum of two since there's no benefit to more.
+ if ($reduce_linebreaks === TRUE)
+ {
+ $str = preg_replace("/\n\n+/", "\n\n", $str);
+ }
+
+ // Convert quotes within tags to temporary markers. We don't want quotes converted
+ // within tags so we'll temporarily convert them to {@DQ} and {@SQ}
+ // and we don't want double dashes converted to emdash entities, so they are marked with {@DD}
+ // likewise double spaces are converted to {@NBS} to prevent entity conversion
+ if (preg_match_all("#\<.+?>#si", $str, $matches))
+ {
+ for ($i = 0, $total = count($matches[0]); $i < $total; $i++)
+ {
+ $str = str_replace($matches[0][$i],
+ str_replace(array("'",'"','--',' '), array('{@SQ}', '{@DQ}', '{@DD}', '{@NBS}'), $matches[0][$i]),
+ $str);
+ }
+ }
+
+ if ($this->protect_braced_quotes === TRUE)
+ {
+ if (preg_match_all("#\{.+?}#si", $str, $matches))
+ {
+ for ($i = 0, $total = count($matches[0]); $i < $total; $i++)
+ {
+ $str = str_replace($matches[0][$i],
+ str_replace(array("'",'"'), array('{@SQ}', '{@DQ}'), $matches[0][$i]),
+ $str);
+ }
+ }
+ }
+
+ // Convert "ignore" tags to temporary marker. The parser splits out the string at every tag
+ // it encounters. Certain inline tags, like image tags, links, span tags, etc. will be
+ // adversely affected if they are split out so we'll convert the opening bracket < temporarily to: {@TAG}
+ $str = preg_replace("#<(/*)(".$this->inline_elements.")([ >])#i", "{@TAG}\\1\\2\\3", $str);
+
+ // Split the string at every tag. This expression creates an array with this prototype:
+ //
+ // [array]
+ // {
+ // [0] = <opening tag>
+ // [1] = Content...
+ // [2] = <closing tag>
+ // Etc...
+ // }
+ $chunks = preg_split('/(<(?:[^<>]+(?:"[^"]*"|\'[^\']*\')?)+>)/', $str, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY);
+
+ // Build our finalized string. We cycle through the array, skipping tags, and processing the contained text
+ $str = '';
+ $process = TRUE;
+ $paragraph = FALSE;
+ foreach ($chunks as $chunk)
+ {
+ // Are we dealing with a tag? If so, we'll skip the processing for this cycle.
+ // Well also set the "process" flag which allows us to skip <pre> tags and a few other things.
+ if (preg_match("#<(/*)(".$this->block_elements.").*?>#", $chunk, $match))
+ {
+ if (preg_match("#".$this->skip_elements."#", $match[2]))
+ {
+ $process = ($match[1] == '/') ? TRUE : FALSE;
+ }
+
+ $str .= $chunk;
+ continue;
+ }
+ elseif (preg_match('/<(\/?)([a-z]*).*?>/s', $chunk, $tagmatch))
+ {
+ if ($tagmatch[1] == '/' && $tagmatch[2] == $this->last_tag)
+ {
+ $process = FALSE;
+ }
+ else
+ {
+ $process = TRUE;
+ $this->last_tag = $tagmatch[2];
+ }
+ }
+
+ if ($process == FALSE)
+ {
+ $str .= $chunk;
+ continue;
+ }
+
+ // Convert Newlines into <p> and <br /> tags
+ $str .= $this->format_characters($this->_format_newlines($chunk));
+ }
+
+ // is the whole of the content inside a block level element?
+ if ( ! preg_match("/^<(?:".$this->block_elements.")/i", $str, $match))
+ {
+ $str = "<p>{$str}</p>";
+ }
+
+
+ // some special linebreak cleanup
+ $str = preg_replace_callback('#<(?!/|'.$this->block_elements.')([^>]*)><p>(.*?)</p><(\w*)#si', array($this, '_linebreak_cleanup'), $str);
+
+ // and cleanup empty paragraph tags sitting between two closing tags
+ $str = preg_replace('#(</\w+>)<p>(\s*)</p>(</\w+>)#si', '$1$2$3', $str);
+
+ // Final clean up
+ $table = array(
+
+ // If the user submitted their own paragraph tags within the text
+ // we will retain them instead of using our tags.
+ '/(<p[^>*?]>)<p>/' => '$1', // <?php BBEdit syntax coloring bug fix
+
+ // Reduce multiple instances of opening/closing paragraph tags to a single one
+ '#(</p>)+#' => '</p>',
+ '/(<p>\W*<p>)+/' => '<p>',
+
+ // Clean up stray paragraph tags that appear before block level elements
+ '#<p></p><('.$this->block_elements.')#' => '<$1',
+
+ // Clean up open paragraph tags that appear before block level elements
+ '#<p>(\W)<('.$this->block_elements.')#' => '<p></p>$1<$2',
+
+ // Clean up stray non-breaking spaces preceeding block elements
+ '#[&nbsp; ]+<('.$this->block_elements.')#' => ' <$1',
+
+ // Replace the temporary markers we added earlier
+ '/\{@TAG\}/' => '<',
+ '/\{@DQ\}/' => '"',
+ '/\{@SQ\}/' => "'",
+ '/\{@DD\}/' => '--',
+ '/\{@NBS\}/' => ' '
+
+ );
+
+ // Do we need to reduce empty lines?
+ if ($reduce_linebreaks === TRUE)
+ {
+ $table['#<p>\n*</p>#'] = '';
+ }
+ else
+ {
+ // If we have empty paragraph tags we add a non-breaking space
+ // otherwise most browsers won't treat them as true paragraphs
+ $table['#<p></p>#'] = '<p>&nbsp;</p>';
+ }
+
+ return preg_replace(array_keys($table), $table, $str);
+
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Linebreak Cleanup
+ *
+ * Removes paragraph and line break tags inserted inbetween
+ * inline content and a new opening block level element
+ *
+ * @access private
+ * @param array
+ * @return string
+ */
+ function _linebreak_cleanup($match)
+ {
+ if (in_array($match[3], explode('|', $this->block_elements)))
+ {
+ return "<{$match[1]}>".str_replace('<br />', '', $match[2])."<{$match[3]}";
+ }
+ else
+ {
+ return $match[0];
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Format Characters
+ *
+ * This function mainly converts double and single quotes
+ * to curly entities, but it also converts em-dashes,
+ * double spaces, and ampersands
+ *
+ * @access public
+ * @param string
+ * @return string
+ */
+ function format_characters($str)
+ {
+ static $table;
+
+ if ( ! isset($table))
+ {
+ $table = array(
+ // nested smart quotes, opening and closing
+ // note that rules for grammar (English) allow only for two levels deep
+ // and that single quotes are _supposed_ to always be on the outside
+ // but we'll accommodate both
+ '/(^|\W|\s)\'"/' => '$1&#8216;&#8220;',
+ '/\'"(\s|\W|$)/' => '&#8217;&#8221;$1',
+ '/(^|\W|\s)"\'/' => '$1&#8220;&#8216;',
+ '/"\'(\s|\W|$)/' => '&#8221;&#8217;$1',
+
+ // single quote smart quotes
+ '/\'(\s|\W|$)/' => '&#8217;$1',
+ '/(^|\W|\s)\'/' => '$1&#8216;',
+
+ // double quote smart quotes
+ '/"(\s|\W|$)/' => '&#8221;$1',
+ '/(^|\W|\s)"/' => '$1&#8220;',
+
+ // apostrophes
+ "/(\w)'(\w)/" => '$1&#8217;$2',
+
+ // Em dash and ellipses dots
+ '/\s?\-\-\s?/' => '&#8212;',
+ '/(\w)\.{3}/' => '$1&#8230;',
+
+ // double space after sentences
+ '/(\W) /' => '$1&nbsp; ',
+
+ // ampersands, if not a character entity
+ '/&(?!#?[a-zA-Z0-9]{2,};)/' => '&amp;'
+ );
+ }
+
+ return preg_replace(array_keys($table), $table, $str);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Format Newlines
+ *
+ * Converts newline characters into either <p> tags or <br />
+ *
+ * @access public
+ * @param string
+ * @return string
+ */
+ function _format_newlines($str)
+ {
+ if ($str == '')
+ {
+ return $str;
+ }
+
+ if (strpos($str, "\n") === FALSE)
+ {
+ return $str;
+ }
+
+ // Convert two consecutive newlines to paragraphs
+ $str = str_replace("\n\n", "</p>\n\n<p>", $str);
+
+ // Convert single spaces to <br /> tags
+ $str = preg_replace("/([^\n])(\n)([^\n])/", "\\1<br />\\2\\3", $str);
+
+ // Wrap the whole enchilada in enclosing paragraphs
+ if ($str != "\n")
+ {
+ $str = '<p>'.$str.'</p>';
+ }
+
+ // Remove empty paragraphs if they are on the first line, as this
+ // is a potential unintended consequence of the previous code
+ $str = preg_replace("/<p><\/p>(.*)/", "\\1", $str, 1);
+
+ return $str;
+ }
+
+ // ------------------------------------------------------------------------
+
+ /**
+ * Convert newlines to HTML line breaks except within PRE tags
+ *
+ * @access public
+ * @param string
+ * @return string
+ */
+ function nl2br_except_pre($str)
+ {
+ $ex = explode("pre>",$str);
+ $ct = count($ex);
+
+ $newstr = "";
+ for ($i = 0; $i < $ct; $i++)
+ {
+ if (($i % 2) == 0)
+ {
+ $newstr .= nl2br($ex[$i]);
+ }
+ else
+ {
+ $newstr .= $ex[$i];
+ }
+
+ if ($ct - 1 != $i)
+ $newstr .= "pre>";
+ }
+
+ return $newstr;
+ }
+
+}
+// END Typography Class
+
+/* End of file Typography.php */
/* Location: ./system/libraries/Typography.php */ \ No newline at end of file