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doc/case_mapping.rdoc: Fix references for case mapping 

The chart (https://www.unicode.org/charts/case) that is currently
referred seems to be wrong.

Also, use the "latest" redirect and add titles of the section and table.
[Bug #18590]
This commit is contained in:
Yusuke Endoh 2022-02-28 16:56:30 +09:00
parent 90b240d127
commit bda4d91f05
Notes: git 2022-06-09 18:22:09 +09:00 
Merged: https://github.com/ruby/ruby/pull/5607
1 changed files with 2 additions and 2 deletions
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doc/case_mapping.rdoc
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@ -28,13 +28,13 @@ In Symbol:
By default, all of these methods use full Unicode case mapping,
which is suitable for most languages.
See {Unicode Latin Case Chart}[https://www.unicode.org/charts/case].
See {Section 3.13 (Default Case Algorithms) of the Unicode standard}[https://www.unicode.org/versions/latest/ch03.pdf].
Non-ASCII case mapping and folding are supported for UTF-8,
UTF-16BE/LE, UTF-32BE/LE, and ISO-8859-1~16 Strings/Symbols.
Context-dependent case mapping as described in
{Table 3-17 of the Unicode standard}[https://www.unicode.org/versions/Unicode13.0.0/ch03.pdf]
{Table 3-17 (Context Specification for Casing) of the Unicode standard}[https://www.unicode.org/versions/latest/ch03.pdf]
is currently not supported.
In most cases, case conversions of a string have the same number of characters.