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author | 2020-11-16 00:10:28 +0100 | |
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committer | 2020-11-16 00:10:28 +0100 | |
commit | e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch) | |
tree | 55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/@webassemblyjs/utf8/src/encoder.js | |
download | website_creator-e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d.tar.gz website_creator-e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d.tar.bz2 website_creator-e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d.zip |
api, login, auth
Diffstat (limited to 'node_modules/@webassemblyjs/utf8/src/encoder.js')
-rw-r--r-- | node_modules/@webassemblyjs/utf8/src/encoder.js | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/node_modules/@webassemblyjs/utf8/src/encoder.js b/node_modules/@webassemblyjs/utf8/src/encoder.js new file mode 100644 index 0000000..1c482f0 --- /dev/null +++ b/node_modules/@webassemblyjs/utf8/src/encoder.js @@ -0,0 +1,44 @@ +function con(n) { + return 0x80 | (n & 0x3f); +} + +export function encode(str) { + const arr = str.split("").map(x => x.charCodeAt(0)); + return _encode(arr); +} + +function _encode(arr) { + if (arr.length === 0) { + return []; + } + + const [n, ...ns] = arr; + + if (n < 0) { + throw new Error("utf8"); + } + + if (n < 0x80) { + return [n, ..._encode(ns)]; + } + + if (n < 0x800) { + return [0xc0 | (n >>> 6), con(n), ..._encode(ns)]; + } + + if (n < 0x10000) { + return [0xe0 | (n >>> 12), con(n >>> 6), con(n), ..._encode(ns)]; + } + + if (n < 0x110000) { + return [ + 0xf0 | (n >>> 18), + con(n >>> 12), + con(n >>> 6), + con(n), + ..._encode(ns) + ]; + } + + throw new Error("utf8"); +} |