This makes the `u16` in `Quality` private, since it only has a valid
range of 0-1000, and can't be enforced in public. The `q` function now
allows both `f32`s and `u16`s to construct a `Quality`.
BREAKING CHANGE: Any use of `Quality(num)` should change to `q(num)`.
1. index out of bounds if semicolon is the last character
2. not a char boundary on non-ASCII input (only allow ASCII now)
Bugs found using `cargo fuzz`
BREAKING CHANGE: The `Preference` header had a typo in a variant and it's string representation,
change `Preference::HandlingLeniant` to `Preference::HandlingLenient`.
This allows more precise errors in the future and makes it easier to use
the try!() macro in some cases.
BREAKING CHANGE: Error enum extended. Return type of header/shared/
types changed.
Using floating point numbers is problematic because comparison is inexact.
They also take more space than integral numbers in this case.
Add `FromPrimitve`, `ToPrimitive` and `Default` traits to quality newtype.
Closes: #330
BREAKING_CHANGE: Replace f32 quality values in quality items with a
Quality(u16) newtype. Valid values are from 0 to 1000.
- Some stray deriving -> derive changes
- use::{mod} -> use::{self}
- fmt.write -> fmt.write_str
This does not catch the last case of fmt.write_str in the
Show impl of a Header Item. This will need to be changed
separately.
