chore: remove std directory (#9361)

This removes the std folder from the tree.

Various parts of the tests are pretty tightly dependent 
on std (47 direct imports and 75 indirect imports, not 
counting the cli tests that use them as fixtures) so I've 
added std as a submodule for now.

1 files changed, 0 insertions, 163 deletions

diff --git a/std/textproto/mod.ts b/std/textproto/mod.ts
deleted file mode 100644
index 816275662..000000000
--- a/std/textproto/mod.ts
+++ /dev/null
@@ -1,163 +0,0 @@
-// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
-// Based on https://github.com/golang/go/tree/master/src/net/textproto
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-import type { BufReader } from "../io/bufio.ts";
-import { concat } from "../bytes/mod.ts";
-import { decode } from "../encoding/utf8.ts";
-
-// FROM https://github.com/denoland/deno/blob/b34628a26ab0187a827aa4ebe256e23178e25d39/cli/js/web/headers.ts#L9
-const invalidHeaderCharRegex = /[^\t\x20-\x7e\x80-\xff]/g;
-
-function str(buf: Uint8Array | null | undefined): string {
-  if (buf == null) {
-    return "";
-  } else {
-    return decode(buf);
-  }
-}
-
-function charCode(s: string): number {
-  return s.charCodeAt(0);
-}
-
-export class TextProtoReader {
-  constructor(readonly r: BufReader) {}
-
-  /** readLine() reads a single line from the TextProtoReader,
-   * eliding the final \n or \r\n from the returned string.
-   */
-  async readLine(): Promise<string | null> {
-    const s = await this.readLineSlice();
-    if (s === null) return null;
-    return str(s);
-  }
-
-  /** ReadMIMEHeader reads a MIME-style header from r.
-   * The header is a sequence of possibly continued Key: Value lines
-   * ending in a blank line.
-   * The returned map m maps CanonicalMIMEHeaderKey(key) to a
-   * sequence of values in the same order encountered in the input.
-   *
-   * For example, consider this input:
-   *
-   *	My-Key: Value 1
-   *	Long-Key: Even
-   *	       Longer Value
-   *	My-Key: Value 2
-   *
-   * Given that input, ReadMIMEHeader returns the map:
-   *
-   *	map[string][]string{
-   *		"My-Key": {"Value 1", "Value 2"},
-   *		"Long-Key": {"Even Longer Value"},
-   *	}
-   */
-  async readMIMEHeader(): Promise<Headers | null> {
-    const m = new Headers();
-    let line: Uint8Array | undefined;
-
-    // The first line cannot start with a leading space.
-    let buf = await this.r.peek(1);
-    if (buf === null) {
-      return null;
-    } else if (buf[0] == charCode(" ") || buf[0] == charCode("\t")) {
-      line = (await this.readLineSlice()) as Uint8Array;
-    }
-
-    buf = await this.r.peek(1);
-    if (buf === null) {
-      throw new Deno.errors.UnexpectedEof();
-    } else if (buf[0] == charCode(" ") || buf[0] == charCode("\t")) {
-      throw new Deno.errors.InvalidData(
-        `malformed MIME header initial line: ${str(line)}`,
-      );
-    }
-
-    while (true) {
-      const kv = await this.readLineSlice(); // readContinuedLineSlice
-      if (kv === null) throw new Deno.errors.UnexpectedEof();
-      if (kv.byteLength === 0) return m;
-
-      // Key ends at first colon
-      let i = kv.indexOf(charCode(":"));
-      if (i < 0) {
-        throw new Deno.errors.InvalidData(
-          `malformed MIME header line: ${str(kv)}`,
-        );
-      }
-
-      //let key = canonicalMIMEHeaderKey(kv.subarray(0, endKey));
-      const key = str(kv.subarray(0, i));
-
-      // As per RFC 7230 field-name is a token,
-      // tokens consist of one or more chars.
-      // We could throw `Deno.errors.InvalidData` here,
-      // but better to be liberal in what we
-      // accept, so if we get an empty key, skip it.
-      if (key == "") {
-        continue;
-      }
-
-      // Skip initial spaces in value.
-      i++; // skip colon
-      while (
-        i < kv.byteLength &&
-        (kv[i] == charCode(" ") || kv[i] == charCode("\t"))
-      ) {
-        i++;
-      }
-      const value = str(kv.subarray(i)).replace(
-        invalidHeaderCharRegex,
-        encodeURI,
-      );
-
-      // In case of invalid header we swallow the error
-      // example: "Audio Mode" => invalid due to space in the key
-      try {
-        m.append(key, value);
-      } catch {
-        // Pass
-      }
-    }
-  }
-
-  async readLineSlice(): Promise<Uint8Array | null> {
-    // this.closeDot();
-    let line: Uint8Array | undefined;
-    while (true) {
-      const r = await this.r.readLine();
-      if (r === null) return null;
-      const { line: l, more } = r;
-
-      // Avoid the copy if the first call produced a full line.
-      if (!line && !more) {
-        // TODO(ry):
-        // This skipSpace() is definitely misplaced, but I don't know where it
-        // comes from nor how to fix it.
-        if (this.skipSpace(l) === 0) {
-          return new Uint8Array(0);
-        }
-        return l;
-      }
-      line = line ? concat(line, l) : l;
-      if (!more) {
-        break;
-      }
-    }
-    return line;
-  }
-
-  skipSpace(l: Uint8Array): number {
-    let n = 0;
-    for (let i = 0; i < l.length; i++) {
-      if (l[i] === charCode(" ") || l[i] === charCode("\t")) {
-        continue;
-      }
-      n++;
-    }
-    return n;
-  }
-}