/**
* @param StringStream $stream
* @return string
*/
private function getFullString(StringStream $stream) : string
{
$stream->start();
$string = '';
do {
$string .= $stream->current();
$stream->next();
} while (!$stream->isEnd());
return $string;
}
/**
* @param string $tokenName
*/
private function defaultExtractor(string $tokenName)
{
if (!array_key_exists($tokenName, $this->tokens)) {
$this->tokens[$tokenName] = '';
}
start:
$char = $this->stream->currentAscii();
if ($char->isPrintableChar() && !$char->isWhiteSpace()) {
$this->tokens[$tokenName] .= $this->stream->current();
$this->stream->next();
goto start;
}
}
/**
* @param string $variableName
*/
private function extractGlobalVariableValue(string $variableName)
{
$this->{$variableName} = '';
start:
$char = $this->stream->currentAscii();
$this->{$variableName} .= '';
if ($char->isLetter() || $char->isDigit() || $char->is(AsciiChar::UNDERSCORE) || $char->is(AsciiChar::DOT) || $char->is(AsciiChar::HYPHEN) || $char->is(AsciiChar::AT_SYMBOL) || $char->is(AsciiChar::ASTERISK)) {
$this->{$variableName} .= $this->stream->current();
$this->stream->next();
goto start;
} elseif ($char->isWhiteSpace()) {
return;
} else {
throw new SyntaxErrorException($this->stream);
}
}
