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eXtensible Markup Language (XML) codec that incrementally parses and writes swim-structure values

There is a newer version: 4.3.15

// Copyright 2015-2021 Swim inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package swim.xml;

import swim.codec.Diagnostic;
import swim.codec.Input;
import swim.codec.Output;
import swim.codec.Parser;

final class CommentParser extends Parser {

  final XmlParser xml;
  final Output output;
  final int step;

  CommentParser(XmlParser xml, Output output, int step) {
    this.xml = xml;
    this.output = output;
    this.step = step;
  }

  static  Parser parse(Input input, XmlParser xml, Output output, int step) {
    int c = 0;
    while (step >= 1 && step <= 4) {
      if (input.isCont()) {
        if (input.head() == "