diff options
| -rw-r--r-- | system/helpers/typography_helper.php | 469 |
1 files changed, 3 insertions, 466 deletions
diff --git a/system/helpers/typography_helper.php b/system/helpers/typography_helper.php index cfb2b94f6..ce628115a 100644 --- a/system/helpers/typography_helper.php +++ b/system/helpers/typography_helper.php @@ -75,476 +75,13 @@ if ( ! function_exists('auto_typography')) {
function auto_typography($str)
{
- $TYPE = new Auto_typography();
- return $TYPE->convert($str);
- }
-}
-
-// ------------------------------------------------------------------------
-
-/**
- * Auto Typography Class
- *
- *
- * @access private
- * @category Helpers
- * @author ExpressionEngine Dev Team
- * @link http://codeigniter.com/user_guide/helpers/
- */
-class Auto_typography {
-
- // Block level elements that should not be wrapped inside <p> tags
- var $block_elements = 'div|blockquote|pre|code|h\d|script|ol|ul';
-
- // Elements that should not have <p> and <br /> tags within them.
- var $skip_elements = 'pre|ol|ul';
-
- // Tags we want the parser to completely ignore when splitting the string.
- var $ignore_elements = 'a|b|i|em|strong|span|img|li';
-
-
- /**
- * Main Processing Function
- *
- */
- function convert($str)
- {
- if ($str == '')
- {
- return '';
- }
-
- $str = ' '.$str.' ';
-
- // 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 line
- * breaks we'll compress them down to a maximum
- * of two since there's no benefit to more.
- *
- */
- $str = preg_replace("/\n\n+/", "\n\n", $str);
-
- /*
- * Convert quotes within tags to temporary marker
- *
- * We don't want quotes converted within
- * tags so we'll temporarily convert them to
- * {@DQ} and {@SQ}
- *
- */
- if (preg_match_all("#\<.+?>#si", $str, $matches))
- {
- for ($i = 0; $i < count($matches['0']); $i++)
- {
- $str = str_replace($matches['0'][$i],
- str_replace(array("'",'"'), array('{@SQ}', '{@DQ}'), $matches['0'][$i]),
- $str);
- }
- }
-
-
- /*
- * Add closing/opening paragraph tags before/after "block" elements
- *
- * Since block elements (like <blockquotes>, <pre>, etc.) do not get
- * wrapped in paragraph tags we will add a closing </p> tag just before
- * each block element starts and an opening <p> tag right after the block element
- * ends. Later on we'll do some further clean up.
- *
- */
- $str = preg_replace("#(<)(".$this->block_elements.")(.*?>)#", "</p>\\1\\2\\3", $str);
- $str = preg_replace("#(</)(".$this->block_elements.")(.*?>)#", "\\1\\2\\3<p>", $str);
+ $CI =& get_instance();
- /*
- * 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 < temporarily to: {@TAG}
- *
- */
- $str = preg_replace("#<(/*)(".$this->ignore_elements.")#i", "{@TAG}\\1\\2", $str);
-
- /*
- * Split the string at every tag
- *
- * This creates an array with this prototype:
- *
- * [array]
- * {
- * [0] = <opening tag>
- * [1] = Content contained between the tags
- * [2] = <closing tag>
- * Etc...
- * }
- *
- */
- $chunks = preg_split('/(<(?:[^<>]+(?:"[^"]*"|\'[^\']*\')?)+>)/', $str, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY);
-
- /*
- * Build our finalized string
- *
- * We'll cycle through the array, skipping tags,
- * and processing the contained text
- *
- */
- $str = '';
- $process = TRUE;
- foreach ($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 .= $chunk;
- continue;
- }
-
- if ($process == FALSE)
- {
- $str .= $chunk;
- continue;
- }
-
- // Convert Newlines into <p> and <br /> tags
- $str .= $this->format_newlines($chunk);
- }
-
- // FINAL CLEAN UP
- // IMPORTANT: DO NOT ALTER THE ORDER OF THE ITEMS BELOW!
-
- /*
- * Clean up paragraph tags before/after "block" elements
- *
- * Earlier we added <p></p> tags before/after block level elements.
- * Then, we added paragraph tags around double line breaks. This
- * potentially created incorrectly formatted paragraphs so we'll
- * clean it up here.
- *
- */
- $str = preg_replace("#<p>({@TAG}.*?)(".$this->block_elements.")(.*?>)#", "\\1\\2\\3", $str);
- $str = preg_replace("#({@TAG}/.*?)(".$this->block_elements.")(.*?>)</p>#", "\\1\\2\\3", $str);
-
- // Convert Quotes and other characters
- $str = $this->format_characters($str);
-
- // Fix an artifact that happens during the paragraph replacement
- $str = preg_replace('#(<p>\n*</p>)#', '', $str);
-
- // If the user submitted their own paragraph tags with class data
- // in them we will retain them instead of using our tags.
- $str = preg_replace('#(<p.*?>)<p>#', "\\1", $str);
-
- // Final clean up
- $str = str_replace(
- array(
- '</p></p>',
- '</p><p>',
- '<p> ',
- ' </p>',
- '{@TAG}',
- '{@DQ}',
- '{@SQ}',
- '<p></p>'
- ),
- array(
- '</p>',
- '<p>',
- '<p>',
- '</p>',
- '<',
- '"',
- "'",
- ''
- ),
- $str
- );
+ $CI->load->library('typography');
- return $str;
+ return $CI->typography->convert($str);
}
-
- // --------------------------------------------------------------------
-
- /**
- * Format Characters
- *
- * This function mainly converts double and single quotes
- * to entities, but since these are directional, it does
- * it based on some rules. It also converts em-dashes
- * and a couple other things.
- */
- function format_characters($str)
- {
- $table = array(
- ' "' => " “",
- '" ' => "” ",
- " '" => " ‘",
- "' " => "’ ",
-
- '>"' => ">“",
- '"<' => "”<",
- ">'" => ">‘",
- "'<" => "’<",
-
- "\"." => "”.",
- "\"," => "”,",
- "\";" => "”;",
- "\":" => "”:",
- "\"!" => "”!",
- "\"?" => "”?",
-
- ". " => ". ",
- "? " => "? ",
- "! " => "! ",
- ": " => ": ",
- );
-
- // These deal with quotes within quotes, like: "'hi here'"
- $start = 0;
- $space = array("\n", "\t", " ");
-
- while(TRUE)
- {
- $current = strpos(substr($str, $start), "\"'");
-
- if ($current === FALSE) break;
-
- $one_before = substr($str, $start+$current-1, 1);
- $one_after = substr($str, $start+$current+2, 1);
-
- if ( ! in_array($one_after, $space, TRUE) && $one_after != "<")
- {
- $str = str_replace( $one_before."\"'".$one_after,
- $one_before."“‘".$one_after,
- $str);
- }
- elseif ( ! in_array($one_before, $space, TRUE) && (in_array($one_after, $space, TRUE) OR $one_after == '<'))
- {
- $str = str_replace( $one_before."\"'".$one_after,
- $one_before."”’".$one_after,
- $str);
- }
-
- $start = $start+$current+2;
- }
-
- $start = 0;
-
- while(TRUE)
- {
- $current = strpos(substr($str, $start), "'\"");
-
- if ($current === FALSE) break;
-
- $one_before = substr($str, $start+$current-1, 1);
- $one_after = substr($str, $start+$current+2, 1);
-
- if ( in_array($one_before, $space, TRUE) && ! in_array($one_after, $space, TRUE) && $one_after != "<")
- {
- $str = str_replace( $one_before."'\"".$one_after,
- $one_before."‘“".$one_after,
- $str);
- }
- elseif ( ! in_array($one_before, $space, TRUE) && $one_before != ">")
- {
- $str = str_replace( $one_before."'\"".$one_after,
- $one_before."’”".$one_after,
- $str);
- }
-
- $start = $start+$current+2;
- }
-
- // Are there quotes within a word, as in: ("something")
- if (preg_match_all("/(.)\"(\S+?)\"(.)/", $str, $matches))
- {
- for ($i=0, $s=sizeof($matches['0']); $i < $s; ++$i)
- {
- if ( ! in_array($matches['1'][$i], $space, TRUE) && ! in_array($matches['3'][$i], $space, TRUE))
- {
- $str = str_replace( $matches['0'][$i],
- $matches['1'][$i]."“".$matches['2'][$i]."”".$matches['3'][$i],
- $str);
- }
- }
- }
-
- if (preg_match_all("/(.)\'(\S+?)\'(.)/", $str, $matches))
- {
- for ($i=0, $s=sizeof($matches['0']); $i < $s; ++$i)
- {
- if ( ! in_array($matches['1'][$i], $space, TRUE) && ! in_array($matches['3'][$i], $space, TRUE))
- {
- $str = str_replace( $matches['0'][$i],
- $matches['1'][$i]."‘".$matches['2'][$i]."’".$matches['3'][$i],
- $str);
- }
- }
- }
-
- // How about one apostrophe, as in Rick's
- $start = 0;
-
- while(TRUE)
- {
- $current = strpos(substr($str, $start), "'");
-
- if ($current === FALSE) break;
-
- $one_before = substr($str, $start+$current-1, 1);
- $one_after = substr($str, $start+$current+1, 1);
-
- if ( ! in_array($one_before, $space, TRUE) && ! in_array($one_after, $space, TRUE))
- {
- $str = str_replace( $one_before."'".$one_after,
- $one_before."’".$one_after,
- $str);
- }
-
- $start = $start+$current+2;
- }
-
- // Em-dashes
- $start = 0;
- while(TRUE)
- {
- $current = strpos(substr($str, $start), "--");
-
- if ($current === FALSE) break;
-
- $one_before = substr($str, $start+$current-1, 1);
- $one_after = substr($str, $start+$current+2, 1);
- $two_before = substr($str, $start+$current-2, 1);
- $two_after = substr($str, $start+$current+3, 1);
-
- if (( ! in_array($one_before, $space, TRUE) && ! in_array($one_after, $space, TRUE))
- OR
- ( ! in_array($two_before, $space, TRUE) && ! in_array($two_after, $space, TRUE) && $one_before == ' ' && $one_after == ' ')
- )
- {
- $str = str_replace( $two_before.$one_before."--".$one_after.$two_after,
- $two_before.trim($one_before)."—".trim($one_after).$two_after,
- $str);
- }
-
- $start = $start+$current+2;
- }
-
- // Ellipsis
- $str = preg_replace("#(\w)\.\.\.(\s|<br />|</p>)#", "\\1…\\2", $str);
- $str = preg_replace("#(\s|<br />|</p>)\.\.\.(\w)#", "\\1…\\2", $str);
-
- // Run the translation array we defined above
- $str = str_replace(array_keys($table), array_values($table), $str);
-
- // If there are any stray double quotes we'll catch them here
-
- $start = 0;
-
- while(TRUE)
- {
- $current = strpos(substr($str, $start), '"');
-
- if ($current === FALSE) break;
-
- $one_before = substr($str, $start+$current-1, 1);
- $one_after = substr($str, $start+$current+1, 1);
-
- if ( ! in_array($one_after, $space, TRUE))
- {
- $str = str_replace( $one_before.'"'.$one_after,
- $one_before."“".$one_after,
- $str);
- }
- elseif( ! in_array($one_before, $space, TRUE))
- {
- $str = str_replace( $one_before."'".$one_after,
- $one_before."”".$one_after,
- $str);
- }
-
- $start = $start+$current+2;
- }
-
- $start = 0;
-
- while(TRUE)
- {
- $current = strpos(substr($str, $start), "'");
-
- if ($current === FALSE) break;
-
- $one_before = substr($str, $start+$current-1, 1);
- $one_after = substr($str, $start+$current+1, 1);
-
- if ( ! in_array($one_after, $space, TRUE))
- {
- $str = str_replace( $one_before."'".$one_after,
- $one_before."‘".$one_after,
- $str);
- }
- elseif( ! in_array($one_before, $space, TRUE))
- {
- $str = str_replace( $one_before."'".$one_after,
- $one_before."’".$one_after,
- $str);
- }
-
- $start = $start+$current+2;
- }
-
- return $str;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Format Newlines
- *
- * Converts newline characters into either <p> tags or <br />
- *
- */
- function format_newlines($str)
- {
- if ($str == '')
- {
- return $str;
- }
-
- if (strpos($str, "\n") === FALSE)
- {
- return '<p>'.$str.'</p>';
- }
-
- $str = str_replace("\n\n", "</p>\n\n<p>", $str);
- $str = preg_replace("/([^\n])(\n)([^\n])/", "\\1<br />\\2\\3", $str);
-
- return '<p>'.$str.'</p>';
- }
}
-
-
/* End of file typography_helper.php */
/* Location: ./system/helpers/typography_helper.php */
\ No newline at end of file |