protected function getMissingSymbol($input, $e, $expectedTokenType, $follow)
{
$tokenText = null;
if ($expectedTokenType == TokenConst::$EOF) {
$tokenText = "<missing EOF>";
} else {
$tokenNames = $this->getTokenNames();
$tokenText = "<missing " . $tokenNames[$expectedTokenType] . ">";
}
$t = CommonToken::forTypeAndText($expectedTokenType, $tokenText);
$current = $input->LT(1);
if ($current->getType() == TokenConst::$EOF) {
$current = $this->input->LT(-1);
}
$t->line = $current->getLine();
$t->charPositionInLine = $current->getCharPositionInLine();
$t->channel = $DEFAULT_TOKEN_CHANNEL;
return $t;
}
protected function extractInformationFromTreeNodeStream($input)
{
$nodes = $input;
$this->node = $nodes->LT(1);
$adaptor = $nodes->getTreeAdaptor();
$payload = $adaptor->getToken($this->node);
if ($payload != null) {
$this->token = $payload;
if ($payload->getLine() <= 0) {
// imaginary node; no line/pos info; scan backwards
$i = -1;
$priorNode = $nodes->LT($i);
while ($priorNode != null) {
$priorPayload = $adaptor->getToken($priorNode);
if ($priorPayload != null && $priorPayload->getLine() > 0) {
// we found the most recent real line / pos info
$this->line = $priorPayload->getLine();
$this->charPositionInLine = $priorPayload->getCharPositionInLine();
$this->approximateLineInfo = true;
break;
}
--$i;
$priorNode = $nodes->LT($i);
}
} else {
// node created from real token
$this->line = $payload->getLine();
$this->charPositionInLine = $payload->getCharPositionInLine();
}
} else {
if ($this->node instanceof Tree) {
$this->line = $this->node->getLine();
$this->charPositionInLine = $this->node->getCharPositionInLine();
if ($this->node instanceof CommonTree) {
$this->token = $this->node->token;
}
} else {
$type = $adaptor->getType($this->node);
$text = $adaptor->getText($this->node);
$this->token = CommonToken::forTypeAndText($type, $text);
}
}
}
public static function forType($type)
{
return CommonToken::forInput($input = null, $type);
}
/** The standard method called to automatically emit a token at the
* outermost lexical rule. The token object should point into the
* char buffer start..stop. If there is a text override in 'text',
* use that to set the token's text. Override this method to emit
* custom Token objects.
*
* If you are building trees, then you should also override
* Parser or TreeParser.getMissingSymbol().
*/
public function emit($token = null)
{
if ($token == null) {
$token = new CommonToken($this->input, $this->state->type, $this->state->channel, $this->state->tokenStartCharIndex, $this->getCharIndex() - 1);
$token->setLine($this->state->tokenStartLine);
$token->setText($this->state->text);
$token->setCharPositionInLine($this->state->tokenStartCharPositionInLine);
}
$this->state->token = $token;
return $token;
}
* so that whitespace etc... can go to the parser on a "hidden" channel.
*/
public static $DEFAULT_CHANNEL = 0;
/** Anything on different channel than DEFAULT_CHANNEL is not parsed
* by parser.
*/
public static $HIDDEN_CHANNEL = 99;
}
interface Token
{
}
TokenConst::$DEFAULT_CHANNEL = 0;
TokenConst::$INVALID_TOKEN_TYPE = 0;
TokenConst::$EOF = CharStreamConst::$EOF;
TokenConst::$EOF_TOKEN = CommonToken::forType(TokenConst::$EOF);
TokenConst::$INVALID_TOKEN_TYPE = 0;
TokenConst::$INVALID_TOKEN = CommonToken::forType(TokenConst::$INVALID_TOKEN_TYPE);
/** In an action, a lexer rule can set token to this SKIP_TOKEN and ANTLR
* will avoid creating a token for this symbol and try to fetch another.
*/
TokenConst::$SKIP_TOKEN = CommonToken::forType(TokenConst::$INVALID_TOKEN_TYPE);
/** All tokens go to the parser (unless skip() is called in that rule)
* on a particular "channel". The parser tunes to a particular channel
* so that whitespace etc... can go to the parser on a "hidden" channel.
*/
TokenConst::$DEFAULT_CHANNEL = 0;
/** Anything on different channel than DEFAULT_CHANNEL is not parsed
* by parser.
*/
TokenConst::$HIDDEN_CHANNEL = 99;
TokenConst::$MIN_TOKEN_TYPE = TokenConst::$UP + 1;
function mBLANK_NODE_LABEL()
{
try {
$_type = Erfurt_Sparql_Parser_Sparql10_Sparql10_Tokenizer::$BLANK_NODE_LABEL;
$_channel = Erfurt_Sparql_Parser_Sparql10_Sparql10_Tokenizer::$DEFAULT_TOKEN_CHANNEL;
$t = null;
$this->matchString("_:");
$tStart2227 = $this->getCharIndex();
$this->mPN_LOCAL();
$t = new CommonToken($this->input, TokenConst::$INVALID_TOKEN_TYPE, TokenConst::$DEFAULT_CHANNEL, $tStart2227, $this->getCharIndex() - 1);
$this->setText($t != null ? $t->getText() : null);
$this->state->type = $_type;
$this->state->channel = $_channel;
} catch (Exception $e) {
throw $e;
}
}
