Optimized UTF-8 #1051
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Optimized UTF-8 #1051
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Add utf8 decoder taken from http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ by Björn Höhrmann, under MIT license. Signed-off-by: Davide Bettio <[email protected]>
This change removes a shift operation and shorten the table. Signed-off-by: Davide Bettio <[email protected]>
There was some code duplicated for validating UTF-8 strings, that was even performing full decode. Use instead new `unicode_is_valid_utf8_buf` function that is also based on highly optimized code. Signed-off-by: Davide Bettio <[email protected]>
Use it as a drop-in replacement instead of bitstring_utf8_decode. This function is based on highly optimized UTF-8 decode found here: http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ Signed-off-by: Davide Bettio <[email protected]>
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These changes are made under both the "Apache 2.0" and the "GNU Lesser General
Public License 2.1 or later" license terms (dual license).
SPDX-License-Identifier: Apache-2.0 OR LGPL-2.1-or-later