public function testIsAlphaNum()
{
foreach ($this->nums as $c) {
$this->assertTrue(ScannerHelper::isAlphaNum($c), $c);
}
foreach ($this->lowAlpha as $c) {
$this->assertTrue(ScannerHelper::isAlphaNum($c), $c);
}
foreach ($this->upAlpha as $c) {
$this->assertTrue(ScannerHelper::isAlphaNum($c), $c);
}
foreach ($this->ops as $c) {
$this->assertFalse(ScannerHelper::isAlphaNum($c), $c);
}
foreach ($this->ws as $c) {
$this->assertFalse(ScannerHelper::isAlphaNum($c), $c);
}
}
/**
* Scans an identifier [a-zA-Z\-_].
*
* @return Token
*/
private function scannIdentifier()
{
$pos = $this->createPosition();
$str = $this->currentCharacter();
while ($this->hasNextCharacter()) {
$this->nextCharacter();
if (ScannerHelper::isAlphaNum($this->currentCharacter()) || ScannerHelper::isEquals($this->currentCharacter(), array("-", "_"))) {
$str .= $this->currentCharacter();
} else {
$this->backupCharacter();
break;
}
}
return new Token(Token::IDENTIFIER, $str, $pos);
}