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d47147fb6a
This commit moves "deno_std/node" in "ext/node" crate. The code is transpiled and snapshotted during the build process. During the first pass a minimal amount of work was done to create the snapshot, a lot of code in "ext/node" depends on presence of "Deno" global. This code will be gradually fixed in the follow up PRs to migrate it to import relevant APIs from "internal:" modules. Currently the code from snapshot is not used in any way, and all Node/npm compatibility still uses code from "https://deno.land/std/node" (or from the location specified by "DENO_NODE_COMPAT_URL"). This will also be handled in a follow up PRs. --------- Co-authored-by: crowlkats <crowlkats@toaxl.com> Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com> Co-authored-by: Yoshiya Hinosawa <stibium121@gmail.com>
72 lines
2 KiB
JavaScript
72 lines
2 KiB
JavaScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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export function normalizeEncoding(enc) {
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if (enc == null || enc === "utf8" || enc === "utf-8") return "utf8";
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return slowCases(enc);
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}
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export function slowCases(enc) {
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switch (enc.length) {
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case 4:
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if (enc === "UTF8") return "utf8";
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if (enc === "ucs2" || enc === "UCS2") return "utf16le";
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enc = `${enc}`.toLowerCase();
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if (enc === "utf8") return "utf8";
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if (enc === "ucs2") return "utf16le";
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break;
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case 3:
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if (
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enc === "hex" || enc === "HEX" ||
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`${enc}`.toLowerCase() === "hex"
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) {
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return "hex";
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}
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break;
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case 5:
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if (enc === "ascii") return "ascii";
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if (enc === "ucs-2") return "utf16le";
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if (enc === "UTF-8") return "utf8";
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if (enc === "ASCII") return "ascii";
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if (enc === "UCS-2") return "utf16le";
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enc = `${enc}`.toLowerCase();
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if (enc === "utf-8") return "utf8";
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if (enc === "ascii") return "ascii";
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if (enc === "ucs-2") return "utf16le";
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break;
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case 6:
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if (enc === "base64") return "base64";
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if (enc === "latin1" || enc === "binary") return "latin1";
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if (enc === "BASE64") return "base64";
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if (enc === "LATIN1" || enc === "BINARY") return "latin1";
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enc = `${enc}`.toLowerCase();
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if (enc === "base64") return "base64";
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if (enc === "latin1" || enc === "binary") return "latin1";
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break;
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case 7:
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if (
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enc === "utf16le" || enc === "UTF16LE" ||
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`${enc}`.toLowerCase() === "utf16le"
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) {
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return "utf16le";
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}
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break;
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case 8:
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if (
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enc === "utf-16le" || enc === "UTF-16LE" ||
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`${enc}`.toLowerCase() === "utf-16le"
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) {
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return "utf16le";
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}
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break;
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case 9:
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if (
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enc === "base64url" || enc === "BASE64URL" ||
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`${enc}`.toLowerCase() === "base64url"
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) {
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return "base64url";
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}
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break;
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default:
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if (enc === "") return "utf8";
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}
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}
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