webp-lossless-bitstream-spec: clarify ABNF syntax

Give some examples of repetition and binary value notation to limit the
need to follow the ABNF reference.

Bug: webp:611
Change-Id: I5b5a7632f011e1523b4a528653fe3630afba3e3e
This commit is contained in:
James Zern 2023-06-05 16:56:49 -07:00
parent 8b55425a56
commit e2ecd5e937

View File

@ -1060,6 +1060,8 @@ Below is a view into the format in Augmented Backus-Naur Form ([ABNF]). It does
not cover all details. The end-of-image (EOI) is only implicitly coded into the
number of pixels (xsize * ysize).
Note that `*element` means `element` can be repeated 0 or more times. `5element`
means `element` is repeated exactly 5 times. `%b` represents a binary value.
#### 7.1 Basic Structure