/**
* Match and return degrees value
*
* @return float|int
*/
private function degrees()
{
// Reset symbol requirement
if ($this->nextSymbol === Lexer::T_APOSTROPHE || $this->nextSymbol === Lexer::T_QUOTE) {
$this->nextSymbol = Lexer::T_DEGREE;
}
// If degrees is a float there will be no minutes or seconds
if ($this->lexer->isNextToken(Lexer::T_FLOAT)) {
// Get degree value
$degrees = $this->match(Lexer::T_FLOAT);
// Degree float values may be followed by degree symbol
if ($this->lexer->isNextToken(Lexer::T_DEGREE)) {
$this->match(Lexer::T_DEGREE);
// Set symbol requirement for next value in pair
$this->nextSymbol = Lexer::T_DEGREE;
}
// Return value
return $degrees;
}
// If degrees isn't a float it must be an integer
$degrees = $this->number();
// If integer is not followed by a symbol this value is complete
if (!$this->symbol()) {
return $degrees;
}
// Grab peek of next token since we can't array dereference result in PHP 5.3
$glimpse = $this->lexer->glimpse();
// If a colon hasn't been matched, and next token is a number followed by degree symbol, when tuple separator is space instead of comma, this value is complete
if (Lexer::T_COLON !== $this->nextSymbol && $this->lexer->isNextTokenAny(array(Lexer::T_INTEGER, Lexer::T_FLOAT)) && Lexer::T_DEGREE === $glimpse['type']) {
return $degrees;
}
// Add minutes to value
$degrees += $this->minutes();
// Return value
return $degrees;
}
