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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
commit | 2aa4a82499d4becd2284cdb482213d541b8804dd (patch) | |
tree | b80bf8bf13c3766139fbacc530efd0dd9d54394c /browser/components/translation/cld2/internal/fixunicodevalue.cc | |
parent | Initial commit. (diff) | |
download | firefox-upstream.tar.xz firefox-upstream.zip |
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'browser/components/translation/cld2/internal/fixunicodevalue.cc')
-rw-r--r-- | browser/components/translation/cld2/internal/fixunicodevalue.cc | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/browser/components/translation/cld2/internal/fixunicodevalue.cc b/browser/components/translation/cld2/internal/fixunicodevalue.cc new file mode 100644 index 0000000000..03edf7c51c --- /dev/null +++ b/browser/components/translation/cld2/internal/fixunicodevalue.cc @@ -0,0 +1,54 @@ +// Copyright 2013 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// +// Routine that maps a Unicode code point to an interchange-valid one +// + +#include "fixunicodevalue.h" +#include "integral_types.h" + +namespace CLD2 { + +// Guarantees that the resulting output value is interchange valid +// 00-FF; map to spaces or MS CP1252 +// D800-DFFF; surrogates +// FDD0-FDEF; non-characters +// xxFFFE-xxFFFF; non-characters +char32 FixUnicodeValue(char32 uv) { + uint32 uuv = static_cast<uint32>(uv); + if (uuv < 0x0100) { + return kMapFullMicrosoft1252OrSpace[uuv]; + } + if (uuv < 0xD800) { + return uv; + } + if ((uuv & ~0x0F) == 0xFDD0) { // non-characters + return 0xFFFD; + } + if ((uuv & ~0x0F) == 0xFDE0) { // non-characters + return 0xFFFD; + } + if ((uuv & 0x00FFFE) == 0xFFFE) { // non-characters + return 0xFFFD; + } + if ((0xE000 <= uuv) && (uuv <= 0x10FFFF)) { + return uv; + } + // surrogates and negative and > 0x10FFFF all land here + return 0xFFFD; +} + +} // End namespace CLD2 + |