/**
* Generate an array of lexer states.
*
* @param string Mode selector, one of "data" or "file".
* @param string Plex data if mode is "data", path to the plex file if mode
* is "file".
* @return array Array containing snapshot of lexer state after each call to
* advance(), error count and any output.
*/
function process($mode, $plex)
{
$result = array();
switch ($mode) {
case 'data':
$lex = new PHP_LexerGenerator_Lexer($plex);
break;
case 'file':
$lex = new PHP_LexerGenerator_Lexer(file_get_contents(dirname(__FILE__) . '/' . $plex));
$result['source'] = str_replace($plex, '\\', '/');
break;
default:
return false;
}
$states = array();
ob_start();
try {
while ($lex->advance(null)) {
$states[] = array('line' => $lex->line, 'token' => $lex->token, 'value' => $lex->value);
}
} catch (Exception $e) {
$result['exception'] = (string) $e;
}
$result['output'] = ob_get_clean();
$result['states'] = $states;
$result['errors'] = $lex->errors;
return $result;
}
/**
* Create a lexer file from its skeleton plex file.
*
* @param string Path to the plex file.
* @param string Optional path to output file. Default is lexerfile with
* extension of ".php".
*/
function create($lexerfile, $outfile = '')
{
$this->_lex = new PHP_LexerGenerator_Lexer(file_get_contents($lexerfile));
$info = pathinfo($lexerfile);
if ($outfile) {
$this->outfile = $outfile;
} else {
$this->outfile = $info['dirname'] . DIRECTORY_SEPARATOR . substr($info['basename'], 0, strlen($info['basename']) - strlen($info['extension'])) . 'php';
}
$this->_parser = new PHP_LexerGenerator_Parser($this->outfile, $this->_lex);
if ($this->debug) {
$this->_parser->PrintTrace();
}
while ($this->_lex->advance($this->_parser)) {
$this->_parser->doParse($this->_lex->token, $this->_lex->value);
}
$this->_parser->doParse(0, 0);
}
