parseFile($file);
}
else {
return "\n";
}
} // switch
}
/**
* @brief opens file and parses it for commands
* @param $filename [String] path and file name
* @return [String] content of the file (after commands execution)
*/
public function parseFile($filename){
//first create head of the HTML file
$lines = Events::rise(Events::ON_HEADER);
$head = implode("\n", $lines);
//now create HTML body
$lines = Events::rise(Events::ON_BODY_START);
$body = implode("\n", $lines);
//parse file
$file = file($filename);
$this->process(&$file);
$body .= implode("\n", $file);
//get end of body
$lines = Events::rise(Events::ON_BODY_END);
$body .= implode("\n", $lines);
//create final HTML file
return <<
$head
$body
HTML;
} //parseFile()
/**
* @brief processes lines and executes commands
* @param $lines [&Array of Strings] lines to process
* @param $commandMap [Array of String] if command found as index, value will be uses instead
* @return [void]
*/
public function process(&$lines, $commandMap = array()) {
$emptyLine = false;
foreach($lines as $row => $line){
$trim = trim($line);
if (preg_match('/^\#([^\ ]+)(\ (.*))?$/', $trim, $params)) {
$command = $params[1];
$params = array_key_exists(3, $params) ? $params[3] : '';
if (array_key_exists($command, $commandMap)) {
$params = $command . ' ' . $params;
$command = $commandMap[$command];
}
$result = Plugins::executeCommand($command, $params);
if (false === $result) {
throw new Exception('Unknown command "'.$command.'"');
} else {
$lines[$row] = $result;
}
}
else { //line w/o command
if ($emptyLine AND preg_match('/^[^\<](.*)?$/', $trim, $params)) {
//paragraph following after empty line is converted into HTML paragraph
$lines[$row] = ''.$trim.'
';
}
$emptyLine = ("" === $trim);
}
} //foreach(line in file)
}
}
//Register this class as Interpreter and Observer
Plugins::register(Plugins::OBSERVER, 'HtmlParser');
?>