From d2df9bc7cc9d4b3e53818470c5d0977c9a36677c Mon Sep 17 00:00:00 2001
From: Derek Allard tags
- var $block_elements = 'div|blockquote|pre|code|h\d|script|ol|un';
-
- // Elements that should not have and tag right after the block element
- * ends. Later on we'll do some further clean up.
- *
- */
- $str = preg_replace("#(<.*?)(".$this->block_elements.")(.*?>)#", " ", $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 < temporarily to: {@TAG}
- *
- */
- $str = preg_replace("#<(/*)(".$this->ignore_elements.")#i", "{@TAG}\\1\\2", $str);
-
- /*
- * Split the string at every tag
- *
- * This creates an array with this prototype:
- *
- * [array]
- * {
- * [0] = and ({@TAG}.*?)(".$this->block_elements.")(.*?>)#", "\\1\\2\\3", $str);
- $str = preg_replace("#({@TAG}/.*?)(".$this->block_elements.")(.*?>) \n* #', "\\1", $str);
-
- // Final clean up
- $str = str_replace(
- array(
- '
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
- $str = preg_replace("/(\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]),
- $str);
- }
- }
-
-
- /*
- * Add closing/opening paragraph tags before/after "block" elements
- *
- * Since block elements (like , etc.) do not get
- * wrapped in paragraph tags we will add a closing
tags and a few other things.
- *
- */
- if (preg_match("#<(/*)(".$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
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
', - '
', - '
', - '{@TAG}', - '{@DQ}', - '{@SQ}', - '' - ), - array( - '', - '', - '
', - '
', - '<', - '"', - "'", - '' - ), - $str - ); - - return $str; - } - - // -------------------------------------------------------------------- - - /** - * Format Characters - * - * This function mainly converts double and single quotes - * to entities, but since these are directional, it does - * it based on some rules. It also converts em-dashes - * and a couple other things. - */ - function format_characters($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 - $str = preg_replace("#(\w)\.\.\.(\s| tags or
- *
- */
- function format_newlines($str)
- {
- if ($str == '')
- {
- return $str;
- }
-
- if (strpos($str, "\n") === FALSE)
- {
- return '
'.$str.'
'; - } - - $str = str_replace("\n\n", "\n\n", $str);
- $str = preg_replace("/([^\n])(\n)([^\n])/", "\\1
\\2\\3", $str);
-
- return '
'.$str.'
'; - } -} - - +",$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 $newstr; +} + +// ------------------------------------------------------------------------ + +/** + * Auto Typography Wrapper Function + * + * + * @access public + * @param string + * @return string + */ +function auto_typography($str) +{ + $TYPE = new Auto_typography(); + return $TYPE->convert($str); +} + +// ------------------------------------------------------------------------ + +/** + * Auto Typography Class + * + * + * @access private + * @category Helpers + * @author Rick Ellis + * @author Paul Burdick + * @link http://www.codeigniter.com/user_guide/helpers/ + */ +class Auto_typography { + + // Block level elements that should not be wrapped insidetags + var $block_elements = 'div|blockquote|pre|code|h\d|script|ol|un'; + + // Elements that should not have
and
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
+ $str = preg_replace("/(\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 , etc.) do not get
+ * wrapped in paragraph tags we will add a closing
tag right after the block element + * ends. Later on we'll do some further clean up. + * + */ + $str = preg_replace("#(<.*?)(".$this->block_elements.")(.*?>)#", "
\\1\\2\\3", $str); + $str = preg_replace("#(block_elements.")(.*?>)#", "\\1\\2\\3", $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 < temporarily to: {@TAG}
+ *
+ */
+ $str = preg_replace("#<(/*)(".$this->ignore_elements.")#i", "{@TAG}\\1\\2", $str);
+
+ /*
+ * Split the string at every tag
+ *
+ * This creates an array with this prototype:
+ *
+ * [array]
+ * {
+ * [0] = and ({@TAG}.*?)(".$this->block_elements.")(.*?>)#", "\\1\\2\\3", $str);
+ $str = preg_replace("#({@TAG}/.*?)(".$this->block_elements.")(.*?>) \n* #', "\\1", $str);
+
+ // Final clean up
+ $str = str_replace(
+ array(
+ ' tags and a few other things.
+ *
+ */
+ if (preg_match("#<(/*)(".$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
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
', + '
', + '
', + '{@TAG}', + '{@DQ}', + '{@SQ}', + '' + ), + array( + '', + '', + '
', + '
', + '<', + '"', + "'", + '' + ), + $str + ); + + return $str; + } + + // -------------------------------------------------------------------- + + /** + * Format Characters + * + * This function mainly converts double and single quotes + * to entities, but since these are directional, it does + * it based on some rules. It also converts em-dashes + * and a couple other things. + */ + function format_characters($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 + $str = preg_replace("#(\w)\.\.\.(\s| tags or
+ *
+ */
+ function format_newlines($str)
+ {
+ if ($str == '')
+ {
+ return $str;
+ }
+
+ if (strpos($str, "\n") === FALSE)
+ {
+ return '
'.$str.'
'; + } + + $str = str_replace("\n\n", "\n\n", $str);
+ $str = preg_replace("/([^\n])(\n)([^\n])/", "\\1
\\2\\3", $str);
+
+ return '
'.$str.'
'; + } +} + + ?> \ No newline at end of file -- cgit v1.2.3-24-g4f1b