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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /js/src/jit-test/lib/string.js | |
parent | Initial commit. (diff) | |
download | thunderbird-upstream.tar.xz thunderbird-upstream.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/jit-test/lib/string.js | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/jit-test/lib/string.js b/js/src/jit-test/lib/string.js new file mode 100644 index 0000000000..15431ae2c1 --- /dev/null +++ b/js/src/jit-test/lib/string.js @@ -0,0 +1,24 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + + +if (typeof isHighSurrogate === 'undefined') { + var isHighSurrogate = function isHighSurrogate(s) { + var c = s.charCodeAt(0); + return c >= 0xD800 && c <= 0xDBFF; + } +} + +if (typeof isLowSurrogate === 'undefined') { + var isLowSurrogate = function isLowSurrogate(s) { + var c = s.charCodeAt(0); + return c >= 0xDC00 && c <= 0xDFFF; + } +} + +if (typeof isSurrogatePair === 'undefined') { + var isSurrogatePair = function isSurrogatePair(s) { + return s.length == 2 && isHighSurrogate(s[0]) && isLowSurrogate(s[1]); + } +} |