handle){
fclose($this->handle);
}
}
function load($file){
$this->handle = @fopen($file, "r");
$this->title = fgets($this->handle,1024);
fgets($this->handle,512);
fgets($this->handle,512);
}
function fetch(){
return $this->display(1);
}
function display($fetch=false){
if ($this->handle) {
if($fetch){
ob_start();
}
while (!feof($this->handle)) {
echo $this->process(fgets($this->handle, 4096));
}
if($fetch){
$return = ob_get_contents();
ob_end_clean();
return $return;
}
}
}
function parse($content){
ob_start();
foreach(explode("\n",$content) as $line){
$line =trim($line);
echo $this->process($line."\n");
}
$return = ob_get_contents();
ob_end_clean();
return $return;
}
function process($line){
if($this->_in_pre){
if(trim($line)=="```"){
$this->_in_pre = false;
return '';
}else{
return htmlspecialchars($line);
}
}
if(trim($line)==''){
if($this->_last_line_is_empty){
if(($this->_blocks[0]=='ol' || $this->_blocks[0]=='ul')){
return '_blocks).'>';
}else{
return '
';
}
}
$this->_last_line_is_empty = true;
return '';
}
$this->_last_line_is_empty = false;
foreach($this->block_re() as $pattern =>$func){
if(preg_match($pattern,$line,$match)){
if($this->_in_table && $func!='table'){
$this->_in_table = false;
echo '';
}
return $this->{'proc_'.$func}($match);
}
}
if($this->_in_table){
$this->_in_table = false;
echo '';
}
if(trim($line)=="```"){
$this->_in_pre = true;
return '';
}
if(!$this->_in_p){
$this->_in_p = true;
echo '';
}
return $this->fixline($line);
}
function block_re(){
return array(
'/^%/'=>'skip',
'/^\+(=+).*?(=+)(\+)\s*$/'=>'title',
'/^(=+).*?(=+)()\s*$/'=>'title',
'/^([-+])\s(.*)/'=>'list',
'/^(\|{1,2})\s(.+)\s\|{1,2}\s*$/'=>'table',
);
}
function proc_table($match){
$code = $match[1]=='|'?'td':'th';
$line = '
';
foreach(explode(' | ',$match[2]) as $col){
$line .= '<'.$code.'>'.$this->fixline($col).'';
}
$line.='
';
if(!$this->_in_table){
$this->_in_table = true;
return ''.$line;
}else{
return $line;
}
}
function proc_skip(){}
function proc_list($match){
$list_code = $match[1]=='-'?'ul':'ol';
$return = ''.$this->fixline($match[2]);
if($this->_blocks[0]!=$list_code){
array_unshift($this->_blocks,$list_code);
$return = '<'.$list_code.'>'.$return;
}
return $return;
}
function proc_title($match){
$depth = min(strlen($match[1]),strlen($match[2]));
$text = trim($match[0]);
if($match[3]=='+'){
$prefix = ++$this->seq[$depth];
for($i=$depth+1;$i<10;$i++){
$this->seq[$i] = 0; //重置子节点计数器
}
$prefix .= '. ';
$text = substr($text,1,-1);
}else{
$prefix = '';
}
return ''.
$prefix.$this->fixline(substr($text,$depth,0-$depth))
.'';
}
function fixline($line){
$re = array(
'/``(.+?)``/'=>'\1',
'/\*\*(.+?)\*\*/'=>'\1',
'/\[(.+)\.(gif|jpg|png)\]/'=>'
',
);
$line = htmlspecialchars($line);
return preg_replace(array_keys($re),$re,$line);
}
function output($line){
echo $line;
}
}