| module SafeYAML |
| class Parse |
| class Date |
| # This one's easy enough :) |
| DATE_MATCHER = /\A(\d{4})-(\d{2})-(\d{2})\Z/.freeze |
| |
| # This unbelievable little gem is taken basically straight from the YAML spec, but made |
| # slightly more readable (to my poor eyes at least) to me: |
| # http://yaml.org/type/timestamp.html |
| TIME_MATCHER = /\A\d{4}-\d{1,2}-\d{1,2}(?:[Tt]|\s+)\d{1,2}:\d{2}:\d{2}(?:\.\d*)?\s*(?:Z|[-+]\d{1,2}(?::?\d{2})?)?\Z/.freeze |
| |
| SECONDS_PER_DAY = 60 * 60 * 24 |
| MICROSECONDS_PER_SECOND = 1000000 |
| |
| # So this is weird. In Ruby 1.8.7, the DateTime#sec_fraction method returned fractional |
| # seconds in units of DAYS for some reason. In 1.9.2, they changed the units -- much more |
| # reasonably -- to seconds. |
| SEC_FRACTION_MULTIPLIER = RUBY_VERSION == "1.8.7" ? (SECONDS_PER_DAY * MICROSECONDS_PER_SECOND) : MICROSECONDS_PER_SECOND |
| |
| # The DateTime class has a #to_time method in Ruby 1.9+; |
| # Before that we'll just need to convert DateTime to Time ourselves. |
| TO_TIME_AVAILABLE = DateTime.instance_methods.include?(:to_time) |
| |
| def self.value(value) |
| d = DateTime.parse(value) |
| |
| return d.to_time if TO_TIME_AVAILABLE |
| |
| usec = d.sec_fraction * SEC_FRACTION_MULTIPLIER |
| time = Time.utc(d.year, d.month, d.day, d.hour, d.min, d.sec, usec) - (d.offset * SECONDS_PER_DAY) |
| time.getlocal |
| end |
| end |
| end |
| end |