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<?php
/**
* parser for number
*/
namespace xKerman\Restricted;
* Parser for number, return result as string
*
* <number> = ["-" / "+"] 1*DIGIT
* note that leading zeros are valid (e.g. "0089" is valid)
class NumberStringParser implements ParserInterface
{
* parse given `$source` as number
* @param Source $source parser input
* @return string
public function parse(Source $source)
$parser = new OptionalSignParser();
list($result, $source) = $parser->parse($source);
$hasDigit = false;
while (ctype_digit($source->peek())) {
$hasDigit = true;
$result .= $source->peek();
$source->next();
}
if (!$hasDigit) {
return $source->triggerError();
return [$result, $source];
xKerman /
restricted-unserialize
