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Clarify that version-sorting looks for the *longest* sequence of digits

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Josh Triplett 2023-08-21 05:05:09 -07:00
parent 127e052a5a
commit 47bb0761e6
1 changed files with 4 additions and 3 deletions
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7
src/doc/style-guide/src/README.md
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@ -112,9 +112,10 @@ For the purposes of the Rust style, to compare two strings for version-sorting:
- Compare the strings by (Unicode) character as normal, finding the index of
the first differing character. (If the two strings do not have the same
length, this may be the end of the shorter string.)
- For both strings, determine the sequence of ASCII digits containing either
that character or the character before. (If either string doesn't have such a
sequence of ASCII digits, fall back to comparing the strings as normal.)
- For both strings, determine the longest sequence of ASCII digits containing
either that character or the character before. (If either string doesn't have
such a sequence of ASCII digits, fall back to comparing the strings as
normal.)
- Compare the numeric values of the number specified by the sequence of digits.
(Note that an implementation of this algorithm can easily check this without
accumulating copies of the digits or converting to a number: after skipping