144 lines
3.7 KiB
PHP
144 lines
3.7 KiB
PHP
<?php
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function split($text){
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$text = str_replace("\r\n", "\n", $text);
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$text = str_replace(" ", "\t", $text);
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$text = trim($text, "\n");
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return explode("\n", $text);
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}
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function convert($text){
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$converted = "";
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for($i=0;$i<count($text);$i++){
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$transcripted = false;
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$text[$i] = trim($text[$i], " ");
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if($i+1<count($text)){
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if(!$transcripted && preg_match("#^=(=)+$#", $text[$i+1])){
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$converted .= "<h1>".$text[$i]."</h1>";
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$i++;
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$transcripted = true;
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}
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if(!$transcripted && preg_match("#^-(-)+$#", $text[$i+1])){
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$converted .= "<h2>".$text[$i]."</h2>";
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$i++;
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$transcripted = true;
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}
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}
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if(!$transcripted){
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if(preg_match("#^\# (.)+$#", $text[$i])){
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$converted .= preg_replace("#^\# (.+)$#", "<h1>$1</h1>", $text[$i]);
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$transcripted = true;
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}
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if(preg_match("#^\#\# (.)+$#", $text[$i])){
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$converted .= preg_replace("#^\#\# (.+)$#", "<h2>$1</h2>", $text[$i]);
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$transcripted = true;
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}
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if(preg_match("#^\#\#\# (.)+$#", $text[$i])){
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$converted .= preg_replace("#^\#\#\# (.+)$#", "<h3>$1</h3>", $text[$i]);
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$transcripted = true;
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}
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if(preg_match("#^\#\#\#\# (.)+$#", $text[$i])){
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$converted .= preg_replace("#^\#\#\#\# (.+)$#", "<h4>$1</h4>", $text[$i]);
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$transcripted = true;
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}
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if(preg_match("#^\#\#\#\#\# (.)+$#", $text[$i])){
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$converted .= preg_replace("#^\#\#\#\#\# (.+)$#", "<h5>$1</h5>", $text[$i]);
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$transcripted = true;
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}
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if(preg_match("#^\#\#\#\#\#\# (.)+$#", $text[$i])){
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$converted .= preg_replace("#^\#\#\#\#\#\# (.+)$#", "<h6>$1</h6>", $text[$i]);
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$transcripted = true;
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}
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if(preg_match("#^---+$#", $text[$i])){
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$converted .= preg_replace("#^---+$#", "<hr />", $text[$i]);
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$transcripted = true;
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}
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}
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if(!$transcripted){
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if(preg_match("#^[+*-] (.*)$#", $text[$i])){
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$converted .= "<ul>";
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while($i < count($text) && preg_match("#^[+*-] (.*)$#", $text[$i])){
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$li = array(preg_replace("#^[+*-] (.*)$#", "$1", $text[$i]));
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$i++;
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while($i < count($text) && preg_match("#^\t+(.*)$#", $text[$i])){
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$li[] = preg_replace("#^\t+(.*)$#", "$1", $text[$i]);
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$i++;
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}
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$i--;
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$converted .= "<li>".convert($li)."</li>";
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$i++;
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}
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$i--;
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$converted .= "</ul>";
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$transcripted = true;
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}
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if(preg_match("#^1\. (.*)$#", $text[$i])){
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$converted .= "<ol>";
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while($i < count($text) && preg_match("#^[0-9]+\. (.*)$#", $text[$i])){
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$li = array(preg_replace("#^[0-9]+\. (.*)$#", "$1", $text[$i]));
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$i++;
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while($i < count($text) && preg_match("#^\t+(.*)$#", $text[$i])){
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$li[] = preg_replace("#^\t+(.*)$#", "$1", $text[$i]);
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$i++;
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}
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$i--;
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$converted .= "<li>".convert($li)."</li>";
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$i++;
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}
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$i--;
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$converted .= "</ol>";
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$transcripted = true;
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}
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}
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if(!$transcripted){
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$text[$i] = preg_replace("#^(.*)\!\[(.*)\]\((.*)\)(.*)$#", "$1<img alt=\"$2\" src=\"$3\" />$4", $text[$i]);
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$text[$i] = preg_replace("#^(.*)\[(.*)\]\((.*)\)(.*)$#", "$1<a href=\"$3\">$2</a>$4", $text[$i]);
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$text[$i] = preg_replace("#^(.*)\*\*(.+)\*\*(.*)$#", "$1<b>$2</b>$3", $text[$i]);
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$text[$i] = preg_replace("#^(.*)\*(.+)\*(.*)$#", "$1<em>$2</em>$3", $text[$i]);
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$text[$i] = preg_replace("#^(.*)(https?://[^ ]*[a-z])(.*)$#", "$1<a href=\"$2\">$2</a>$3", $text[$i]);
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$text[$i] = preg_replace("#^(.*)`(.*)`(.*)$#", "$1<code>$2</code>$3", $text[$i]);
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$converted .= $text[$i]."<br />";
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}
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}
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return $converted;
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}
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function countIndentation($string){
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$i = 0;
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while($i < strlen($string) && $string[$i] == "\t") $i++;
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return $i;
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}
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function md2html($text){
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return convert(split($text));
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}
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?>
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