.opencode/node_modules/multipasta/dist/esm/internal/headers.js

const constMaxPairs = 100;
const constMaxSize = 16 * 1024;
var State;
(function (State) {
  State[State["key"] = 0] = "key";
  State[State["whitespace"] = 1] = "whitespace";
  State[State["value"] = 2] = "value";
})(State || (State = {}));
const constContinue = {
  _tag: "Continue"
};
const constNameChars = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1];
const constValueChars = [0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1];
export function make() {
  const decoder = new TextDecoder();
  const state = {
    state: State.key,
    headers: Object.create(null),
    key: "",
    value: undefined,
    crlf: 0,
    previousChunk: undefined,
    pairs: 0,
    size: 0
  };
  function reset(value) {
    state.state = State.key;
    state.headers = Object.create(null);
    state.key = "";
    state.value = undefined;
    state.crlf = 0;
    state.previousChunk = undefined;
    state.pairs = 0;
    state.size = 0;
    return value;
  }
  function concatUint8Array(a, b) {
    const newUint8Array = new Uint8Array(a.length + b.length);
    newUint8Array.set(a);
    newUint8Array.set(b, a.length);
    return newUint8Array;
  }
  function error(reason) {
    return reset({
      _tag: "Failure",
      reason,
      headers: state.headers
    });
  }
  return function write(chunk, start) {
    let endOffset = 0;
    let previousCursor;
    if (state.previousChunk !== undefined) {
      endOffset = state.previousChunk.length;
      previousCursor = endOffset;
      const newChunk = new Uint8Array(chunk.length + endOffset);
      newChunk.set(state.previousChunk);
      newChunk.set(chunk, endOffset);
      state.previousChunk = undefined;
      chunk = newChunk;
    }
    const end = chunk.length;
    outer: while (start < end) {
      if (state.state === State.key) {
        let i = start;
        for (; i < end; i++) {
          if (state.size++ > constMaxSize) {
            return error("HeaderTooLarge");
          }
          if (chunk[i] === 58) {
            state.key += decoder.decode(chunk.subarray(start, i)).toLowerCase();
            if (state.key.length === 0) {
              return error("InvalidHeaderName");
            }
            if (chunk[i + 1] === 32 && chunk[i + 2] !== 32 && chunk[i + 2] !== 9) {
              start = i + 2;
              state.state = State.value;
              state.size++;
            } else if (chunk[i + 1] !== 32 && chunk[i + 1] !== 9) {
              start = i + 1;
              state.state = State.value;
            } else {
              start = i + 1;
              state.state = State.whitespace;
            }
            break;
          } else if (constNameChars[chunk[i]] !== 1) {
            return error("InvalidHeaderName");
          }
        }
        if (i === end) {
          state.key += decoder.decode(chunk.subarray(start, end)).toLowerCase();
          return constContinue;
        }
      }
      if (state.state === State.whitespace) {
        for (; start < end; start++) {
          if (state.size++ > constMaxSize) {
            return error("HeaderTooLarge");
          }
          if (chunk[start] !== 32 && chunk[start] !== 9) {
            state.state = State.value;
            break;
          }
        }
        if (start === end) {
          return constContinue;
        }
      }
      if (state.state === State.value) {
        let i = start;
        if (previousCursor !== undefined) {
          i = previousCursor;
          previousCursor = undefined;
        }
        for (; i < end; i++) {
          if (state.size++ > constMaxSize) {
            return error("HeaderTooLarge");
          }
          if (chunk[i] === 13 || state.crlf > 0) {
            let byte = chunk[i];
            if (byte === 13 && state.crlf === 0) {
              state.crlf = 1;
              i++;
              state.size++;
              byte = chunk[i];
            }
            if (byte === 10 && state.crlf === 1) {
              state.crlf = 2;
              i++;
              state.size++;
              byte = chunk[i];
            }
            if (byte === 13 && state.crlf === 2) {
              state.crlf = 3;
              i++;
              state.size++;
              byte = chunk[i];
            }
            if (byte === 10 && state.crlf === 3) {
              state.crlf = 4;
              i++;
              state.size++;
            }
            if (state.crlf < 4 && i >= end) {
              state.previousChunk = chunk.subarray(start);
              return constContinue;
            } else if (state.crlf >= 2) {
              state.value = state.value === undefined ? chunk.subarray(start, i - state.crlf) : concatUint8Array(state.value, chunk.subarray(start, i - state.crlf));
              const value = decoder.decode(state.value);
              if (state.headers[state.key] === undefined) {
                state.headers[state.key] = value;
              } else if (typeof state.headers[state.key] === "string") {
                state.headers[state.key] = [state.headers[state.key], value];
              } else {
                ;
                state.headers[state.key].push(value);
              }
              start = i;
              state.size--;
              if (state.crlf !== 4 && state.pairs === constMaxPairs) {
                return error("TooManyHeaders");
              } else if (state.crlf === 3) {
                return error("InvalidHeaderValue");
              } else if (state.crlf === 4) {
                return reset({
                  _tag: "Headers",
                  headers: state.headers,
                  endPosition: start - endOffset
                });
              }
              state.pairs++;
              state.key = "";
              state.value = undefined;
              state.crlf = 0;
              state.state = State.key;
              continue outer;
            }
          } else if (constValueChars[chunk[i]] !== 1) {
            return error("InvalidHeaderValue");
          }
        }
        if (i === end) {
          state.value = state.value === undefined ? chunk.subarray(start, end) : concatUint8Array(state.value, chunk.subarray(start, end));
          return constContinue;
        }
      }
    }
    if (start > end) {
      state.size += end - start;
    }
    return constContinue;
  };
}
//# sourceMappingURL=headers.js.map