std: Tweak some unstable features of str
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r? @gankro (rust_highfive has picked a reviewer for you, use r? to override) |
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r? @aturon |
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cc #9387, but doesn't quite fix it as there is still a decision left to be made |
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@bors: r+ 53f493c |
This commit clarifies some of the unstable features in the `str` module by moving them out of the blanket `core` and `collections` features. The following methods were moved to the `str_char` feature which generally encompasses decoding specific characters from a `str` and dealing with the result. It is unclear if any of these methods need to be stabilized for 1.0 and the most conservative route for now is to continue providing them but to leave them as unstable under a more specific name. * `is_char_boundary` * `char_at` * `char_range_at` * `char_at_reverse` * `char_range_at_reverse` * `slice_shift_char` The following methods were moved into the generic `unicode` feature as they are specifically enabled by the `unicode` crate itself. * `nfd_chars` * `nfkd_chars` * `nfc_chars` * `graphemes` * `grapheme_indices` * `width`
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@bors: r=aturon |
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📌 Commit aa88da6 has been approved by |
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I have to wonder whether LLVM would optimize out this operation (decoding from UTF-8 and getting the length from the result of the decoding, instead of having it as a by-product) on @Kimundi's utf8x4 semi-hypothetical replacement for char.
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This commit clarifies some of the unstable features in the `str` module by moving them out of the blanket `core` and `collections` features. The following methods were moved to the `str_char` feature which generally encompasses decoding specific characters from a `str` and dealing with the result. It is unclear if any of these methods need to be stabilized for 1.0 and the most conservative route for now is to continue providing them but to leave them as unstable under a more specific name. * `is_char_boundary` * `char_at` * `char_range_at` * `char_at_reverse` * `char_range_at_reverse` * `slice_shift_char` The following methods were moved into the generic `unicode` feature as they are specifically enabled by the `unicode` crate itself. * `nfd_chars` * `nfkd_chars` * `nfc_chars` * `graphemes` * `grapheme_indices` * `width`
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This commit clarifies some of the unstable features in the
strmodule bymoving them out of the blanket
coreandcollectionsfeatures.The following methods were moved to the
str_charfeature which generallyencompasses decoding specific characters from a
strand dealing with theresult. It is unclear if any of these methods need to be stabilized for 1.0 and
the most conservative route for now is to continue providing them but to leave
them as unstable under a more specific name.
is_char_boundarychar_atchar_range_atchar_at_reversechar_range_at_reverseslice_shift_charThe following methods were moved into the generic
unicodefeature as they arespecifically enabled by the
unicodecrate itself.nfd_charsnfkd_charsnfc_charsgraphemesgrapheme_indiceswidth