Comments (4)
That's a discussion better suited to the Encoding standard:
https://encoding.spec.whatwg.org/
https://github.com/whatwg/encoding/issues
Other than the non-standard encoding capability (which is here primarily to validate the spec) I don't want to introduce anything not covered in Encoding.
(And the Encoding standard is trying to be as limited as possible - unless existing Web content demands it we are extremely unlikely to support any new encodings.)
from text-encoding.
@inexorabletash I understand... Would you be willing to clarify the questions regarding the structure of encoding-indexes
so that I'd be able to add it in my own fork?
from text-encoding.
The existing indexes are defined in the Encoding Standard, https://encoding.spec.whatwg.org/#indexes
Basically the index for an encoding is a resource to make the decoder/encoder handler
something other than a huge switch statement.
The decoder handler just takes the input byte (or bytes) does math to get an index pointer, and looks up index[pointer]. For CP437 you could just have 256 entries (the 95 printable ASCII ones would have value == index) or you could be more clever and do math to avoid those 95 values. I'd keep it simple, honestly.
The encode handler does the reverse - looks up the Unicode code point in the table (inefficiently!), and if found it returns the corresponding index, then does math to convert that to a byte. Again, if you go with a simple 256 entry table then it's just the index itself as the output byte.
Hope that helps!
from text-encoding.
@inexorabletash thanks, will look into this from here...
from text-encoding.
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from text-encoding.