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PEP 680: Further explain why files are read as binary #2281
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Despite careful re-reading, I was initially confused by this line when reading the original PEP, and then misunderstood it to mean files that were just single
CR
s, rather than files that use singleCR
s as the newline character. I suggest clarifying this as above.There was a problem hiding this comment.
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Added a commit to clarify this. I think this reason is much less important than the other one, so don't wish to spend too many words on this.
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The commit doesn't really clarify the confusion I had over its intended meaning, sorry. The problematic usage is with using a single
CR
as an end of line character, not single CRs anywhere in the file being an invalid character as the current wording implies (which both won't universal newlines unless it is the EOL character, and appears to be legal TOML inside multi-line double-quoted strings, at least per the verbatim letter of the spec).If it isn't that important, such that it wouldn't be worth adding a few extra words to make its intended meaning clear and explicit and avoid introducing additional confusion, then maybe it would be best to just remove it entirely?
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I don't have a preference on the wording here, but I do think this is important and should not be removed.
Regarding TOML spec confusion: note that CR character is always part of an EOL sequence (CR+LF). If it isn't then the TOML is invalid. A bare CR is not valid in multi-line strings (double or single quoted) as per toml.abnf (I've also made a clarification of this in the Markdown spec, but that isn't included in TOML v1.0.0).
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In that case, I suggest including the above clarification (or similar), as the present wording was the source of confusion on what you meant here (by someone who makes heavy use of TOML, though lacking your depth of expertise into the intricacies of the format).
Ah, thanks for the clarification. I was mislead by this line,
and the lack of explicitly requiring any
CF
to always be followed byLF
, but indeed the formal ABNF is correct.