initCause(cause);
        this.lineNumber = lineNumber;
        this.columnNumber = columnNumber;
    }

    /**
     * Gets the one-based index of the line containing the error.
     *
     * @return The one-based index of the line containing the error or a non-positive value if unknown.
     */
    public int getLineNumber() {
        return lineNumber;
    }

    /**

        initCause(cause);
        this.lineNumber = lineNumber;
        this.columnNumber = columnNumber;
    }

    /**
     * Gets the one-based index of the line containing the error.
     *
     * @return The one-based index of the line containing the error or a non-positive value if unknown.
     */
    public int getLineNumber() {
        return lineNumber;
    }

    /**

    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;

                    } else if (line.startsWith(customPromptLiteralStart)) {
                        saveBuffer();
                        const promptStart = line.indexOf(promptLiteralStart);
                        if (promptStart === -1) {
                            console.error("Custom prompt found but no end delimiter", line)
                        }

        return String.join("\n", outputLines);
    }

    /** Squeeze multiple empty lines into a single line. */
    static List<String> skipBlanks(List<String> lines) {
        boolean skipNextEmpty = false;

        final List<String> output = new ArrayList<>(lines.size());

        for (final String line : lines) {
            if (line.isEmpty()) {
                if (skipNextEmpty) {
                    continue;

            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) {

    /**
     * Process a single line: remove comments, trim whitespace, and replace placeholders.
     */
    private static String processLine(String line, String mavenProjectBasedir) {
        // Remove comments
        int commentIndex = line.indexOf('#');
        if (commentIndex >= 0) {
            line = line.substring(0, commentIndex);
        }

        // Trim whitespace
        line = line.trim();

    }

    /**
     * Checks if the buffer contains a line that matches the specified value (after trimming).
     *
     * @param value the value to search for in the buffered lines
     * @return true if a matching line is found, false otherwise
     */
    public boolean contains(final String value) {
        for (final String line : list) {
            if (line.trim().equals(value)) {
                return true;

        List<String> lines = new ArrayList<>();
        for (String line = readLine(); line != null && !line.isEmpty(); line = readLine()) {
            lines.add(line);
        }
        return lines;
    }

    @Override
    public void write(String line) throws IOException {
        try {
            prompter.showMessage(line);

                    line = line.replaceAll(/<\d+>/, '')
                    // Nor any trailing spaces
                    line = line.replaceAll(/\s+$/, '')
                    contents.append(line).append('\n')
                    return
                }
                // Allow line continuations for console snippets within lists
                if (snippet != null && line.trim() == '+') {
                    return