if (line.isEmpty()) {
                continue;
            }
            if (false == line.startsWith(leadingSpaces)) {
                log.accept(lines.lastLineNumber, "snippet line should start with [" + leadingSpaces + "]");
                continue;
            }
            int width = line.length() - leadingSpaces.length();
            if (width > max) {

                }
                valueLines.add(line);
                while (!line.isEmpty() && contains(WHITE_SPACE, line.charAt(0))) {
                    line = line.substring(1, line.length());
                }
                buffer.append(line);
                if (!combine) {
                    break;
                }
            }
            return buffer.toString();

                }
                valueLines.add(line);
                while (!line.isEmpty() && contains(WHITE_SPACE, line.charAt(0))) {
                    line = line.substring(1, line.length());
                }
                buffer.append(line);
                if (!combine) {
                    break;
                }
            }
            return buffer.toString();

import (
	"iter"
	"unicode"
	"unicode/utf8"
)

// Lines returns an iterator over the newline-terminated lines in the byte slice s.
// The lines yielded by the iterator include their terminating newlines.
// If s is empty, the iterator yields no lines at all.
// If s does not end in a newline, the final yielded line will not end in a newline.
// It returns a single-use iterator.
func Lines(s []byte) iter.Seq[[]byte] {

    writeLines(lines, System.getProperty("line.separator"));
  }

  /**
   * Writes the given lines of text to this sink with each line (including the last) terminated with
   * the given line separator.
   *
   * @throws IOException if an I/O error occurs while writing to this sink
   */
  public void writeLines(Iterable<? extends CharSequence> lines, String lineSeparator)

    }

    /**
     * Animate a typed line.
     * @param {Node} line - The line element to render.
     */
    async type(line) {
        const chars = [...line.textContent];
        line.textContent = '';
        this.container.appendChild(line);

        for (let char of chars) {
            const delay = line.getAttribute(`${this.pfx}-typeDelay`) || this.typeDelay;

    }
    lineBuf.finish();
    return lines;
  }

  private static List<String> readUsingJava(String input, int chunk) throws IOException {
    BufferedReader r = new BufferedReader(getChunkedReader(input, chunk));
    List<String> lines = new ArrayList<>();
    String line;
    while ((line = r.readLine()) != null) {
      lines.add(line);
    }
    r.close();
    return lines;
  }

import org.apache.logging.log4j.Logger;

/**
 * A thread that reads from an input stream line by line and maintains a buffer of recent lines.
 * This class provides functionality to read input stream data asynchronously,
 * optionally process each line with a callback function, and maintain a circular buffer
 * of recent lines for retrieval.
 */
public class InputStreamThread extends Thread {
    /** Logger instance for this class */

    private static final class Snippet {
        final int line;       // line of the [.multi-language-sample] header
        final Language lang;  // best-effort deduction (UNKNOWN allowed)

        Snippet(int line, Language lang) {
            this.line = line;
            this.lang = lang;
        }
    }

    private static final class Error {
        final int line;
        final String message;

    TestCharSource lines = new TestCharSource(LINES);
    assertThat(lines.readFirstLine()).isEqualTo("foo");
    assertTrue(lines.wasStreamOpened() && lines.wasStreamClosed());
  }

  public void testReadLines_toList() throws IOException {
    TestCharSource lines = new TestCharSource(LINES);
    assertEquals(ImmutableList.of("foo", "bar", "baz", "something"), lines.readLines());