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authorlittleblack111 <littleblack11111@gmail.com>2023-11-01 20:49:36 +0800
committerlittleblack111 <littleblack11111@gmail.com>2023-11-01 20:49:36 +0800
commite99f950f5018cfe737c0d1150e50d97c6e6a4823 (patch)
tree16f329a1b22128ed67f3fcae15a9b0a030f2ccbf /node_modules/@webassemblyjs/utf8/src/decoder.js
parentc5d8a744dd584749e0b920119b42e731e37e5f62 (diff)
update
Diffstat (limited to 'node_modules/@webassemblyjs/utf8/src/decoder.js')
-rw-r--r--node_modules/@webassemblyjs/utf8/src/decoder.js67
1 files changed, 0 insertions, 67 deletions
diff --git a/node_modules/@webassemblyjs/utf8/src/decoder.js b/node_modules/@webassemblyjs/utf8/src/decoder.js
deleted file mode 100644
index de80d125..00000000
--- a/node_modules/@webassemblyjs/utf8/src/decoder.js
+++ /dev/null
@@ -1,67 +0,0 @@
-function con(b) {
- if ((b & 0xc0) === 0x80) {
- return b & 0x3f;
- } else {
- throw new Error("invalid UTF-8 encoding");
- }
-}
-
-function code(min, n) {
- if (n < min || (0xd800 <= n && n < 0xe000) || n >= 0x10000) {
- throw new Error("invalid UTF-8 encoding");
- } else {
- return n;
- }
-}
-
-export function decode(bytes) {
- return _decode(bytes)
- .map((x) => String.fromCharCode(x))
- .join("");
-}
-
-function _decode(bytes) {
- const result = [];
- while (bytes.length > 0) {
- const b1 = bytes[0];
- if (b1 < 0x80) {
- result.push(code(0x0, b1));
- bytes = bytes.slice(1);
- continue;
- }
-
- if (b1 < 0xc0) {
- throw new Error("invalid UTF-8 encoding");
- }
-
- const b2 = bytes[1];
- if (b1 < 0xe0) {
- result.push(code(0x80, ((b1 & 0x1f) << 6) + con(b2)));
- bytes = bytes.slice(2);
- continue;
- }
-
- const b3 = bytes[2];
- if (b1 < 0xf0) {
- result.push(code(0x800, ((b1 & 0x0f) << 12) + (con(b2) << 6) + con(b3)));
- bytes = bytes.slice(3);
- continue;
- }
-
- const b4 = bytes[3];
- if (b1 < 0xf8) {
- result.push(
- code(
- 0x10000,
- ((((b1 & 0x07) << 18) + con(b2)) << 12) + (con(b3) << 6) + con(b4)
- )
- );
- bytes = bytes.slice(4);
- continue;
- }
-
- throw new Error("invalid UTF-8 encoding");
- }
-
- return result;
-}