var whitespace = false
      afterBoundaryLoop@while (true) {
        when (source.select(afterBoundaryOptions)) {
          0 -> {
            // "\r\n": We've found a new part.
            partCount++
            break@afterBoundaryLoop
          }

          1 -> {
            // "--": No more parts.

        sb.append((char) (base + offset));
      }
    }
    ALL_DIGITS = sb.toString();
  }

  /** Sample CharMatcher instances for benchmarking. */
  public enum SampleMatcherConfig {
    WHITESPACE(CharMatcher.whitespace(), WHITESPACE_CHARACTERS),
    HASH(CharMatcher.is('#'), "#"),
    ASCII(CharMatcher.ascii(), ASCII_CHARACTERS),
    WESTERN_DIGIT("0123456789"),
    ALL_DIGIT(CharMatcher.digit(), ALL_DIGITS),

    val headers =
      Headers
        .Builder()
        .add("foo: bar")
        .add(" foo: baz") // Name leading whitespace is trimmed.
        .add("foo : bak") // Name trailing whitespace is trimmed.
        .add("\tkey\t:\tvalue\t") // '\t' also counts as whitespace
        .add("ping:  pong  ") // Value whitespace is trimmed.
        .add("kit:kat") // Space after colon is not required.
        .build()

import com.google.caliper.Benchmark;
import com.google.caliper.Param;
import java.util.BitSet;
import java.util.Random;
import org.jspecify.annotations.NullUnmarked;

/** Benchmark for the {@link CharMatcher#whitespace} implementation. */
@NullUnmarked
public class WhitespaceMatcherBenchmark {
  private static final int STRING_LENGTH = 10000;

  private static final String OLD_WHITESPACE_TABLE =

version: "2"

linters:
  default: standard
  enable:
    - cyclop
    - gocritic
    - gosec
    - ineffassign
    - misspell
    - prealloc
    - unconvert
    - unparam
    - whitespace

formatters:
  enable:
    - gofumpt

    - forcetypeassert
    - gocritic
    - gomodguard
    - govet
    - ineffassign
    - misspell
    - revive
    - staticcheck
    - unconvert
    - unused
    - usetesting
    - whitespace
  settings:
    misspell:
      locale: US
    staticcheck:
      checks:
        - all
        - -SA1008
        - -SA1019
        - -SA4000
        - -SA9004
        - -ST1000
        - -ST1005

   * element content or {@link #xmlAttributeEscaper} in attribute values.
   *
   * <p>This escaper substitutes {@code 0xFFFD} for non-whitespace control characters and the
   * character values {@code 0xFFFE} and {@code 0xFFFF} which are not permitted in XML. For more
   * detail see section <a href="http://www.w3.org/TR/2008/REC-xml-20081126/#charsets">2.2</a> of

    rev: v6.0.0
    hooks:
    -   id: check-added-large-files
    -   id: check-toml
    -   id: check-yaml
        args:
        -   --unsafe
    -   id: end-of-file-fixer
    -   id: trailing-whitespace
-   repo: https://github.com/astral-sh/ruff-pre-commit
    rev: v0.12.10
    hooks:
    -   id: ruff
        args:
        - --fix
    -   id: ruff-format
ci:

                    }
                    ip = (ip << 8) + b;
                }
                while (i < data.length && Character.isWhitespace(data[i])) {
                    i++;
                }
                j = i;
                while (j < data.length && !Character.isWhitespace(data[j])) {
                    j++;
                }

                name = new Name(line.substring(i, j), 0x20, null);

                    }
                    ip = (ip << 8) + b;
                }
                while (i < data.length && Character.isWhitespace(data[i])) {
                    i++;
                }
                j = i;
                while (j < data.length && !Character.isWhitespace(data[j])) {
                    j++;
                }

                name = new Name(tc.getConfig(), line.substring(i, j), 0x20, null);