| commit | 5dd14ff1b8ee7f129a2340e73c3674587476e29a | [log] [tgz] |
|---|---|---|
| author | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | Thu Nov 18 02:06:12 2021 +0000 |
| committer | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | Thu Nov 18 02:06:12 2021 +0000 |
| tree | 54d6d989f49b2aa65c0ecd205b0ec6b2e8f526e3 | |
| parent | 2be5a94451aa8c5ff1519ceea1a995cf7bb7bd02 [diff] | |
| parent | aa60c62eb45568d4a6cca4ee03bc1bfb0cf7499a [diff] |
Snap for 7925568 from aa60c62eb45568d4a6cca4ee03bc1bfb0cf7499a to tm-release Change-Id: I3482fbabe6efede2b5480b6336364e4ee477ff4f
Convert between ordinary UTF-8 and CESU-8 encodings.
CESU-8 encodes characters outside the Basic Multilingual Plane as two UTF-16 surrogate chacaters, which are then further re-encoded as invalid, 3-byte UTF-8 characters. This means that 4-byte UTF-8 sequences become 6-byte CESU-8 sequences.
Note that CESU-8 is only intended for internal use within tightly-coupled systems, and not for data interchange.
This encoding is sometimes needed when working with Java, Oracle or MySQL, and when trying to store emoji, hieroglyphs, or other characters on the Supplementary Multilingual Plane or the Supplementary Ideographic Plane.
Some of this code is adapted from Rust's src/libcore/str.rs file. This code is covered by LICENSE-RUST.txt and copyright by The Rust Project Developers and individual Rust contributors, as described in that file.
The new code in this project is distributed under the same terms.