return false;
        }
        for (Node node = element.getFirstChild(); node != null; node = node.getNextSibling()) {
            if (!(node instanceof Text)) {
                return false;
            }
            Text text = (Text) node;
            if (!text.getTextContent().matches("\\s*")) {
                return false;
            }
        }
        return true;
    }

    public String getSignature() {
        final StringBuilder builder = new StringBuilder();

        visitSignature(new SignatureVisitor() {
            @Override
            public void visitText(String text) {
                builder.append(text);
            }

            @Override
            public void visitType(String name) {
                builder.append(name);
            }
        });
        return builder.toString();

                inSectionElements.remove();

                if (next == null) {
                    break;
                } else {
                    inSection.clear();
                    inSection.add(next);
                    heading = next;
                }
            } else {
                inSection.add(next);
            }
            next = next.nextElementSibling();
        }
    }

                    parseHtmlEncodedChar(text);
                } else if (scanner.lookingAt(HTML_ENTITY)) {
                    parseHtmlEntity(text);
                } else {
                    text.append(scanner.getFirst());
                    scanner.next();
                }
            }

            visitor.onText(text.toString());
        }
        visitor.onEnd();
    }

        }

        @Override
        public void onText(String text) {
            boolean ws = text.matches("\\s*");
            if (!ws) {
                onInlineContent();
                visitor.onText(text);
            } else if (!elementStack.isEmpty() && !blockContent.contains(elementStack.getFirst())) {
                visitor.onText(text);
            }
        }

        @Override

        void onEndHtmlElement(String name) {
        }

        void onStartJavadocTag(String name) {
        }

        void onEndJavadocTag(String name) {
        }

        void onText(String text) {
        }

        void onEnd() {
        }
    }

        String prefix = introductionFor(additionalData, isTypeIrrelevantInErrorMessage(problem.getDefinition().getId()));
        String text = Optional.ofNullable(problem.getContextualLabel()).orElseGet(() -> problem.getDefinition().getId().getDisplayName());
        return problem.toBuilder().contextualLabel(prefix + text).build();
    }

    private static boolean isTypeIrrelevantInErrorMessage(ProblemId problemId) {

    }

    private void writeHeader(PrintWriter fw) {
        fw.println("# Valid links are:");
        fw.println("# * Inside the same file: <<(#)section-name(,text)>>");
        fw.println("# * To a different file: <<other-file(.adoc)#section-name,text>> - Note that the # and section are mandatory, otherwise the link is invalid in the single page output");
        fw.println("#");

    // 64 kB is the limit for SMB drives
    // See https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-readdirectorychangesw#remarks:~:text=ERROR_INVALID_PARAMETER
    private static final int BUFFER_SIZE = 64 * 1024;

    public WindowsFileWatcherRegistryFactory(
        Predicate<String> immutableLocationsFilter

            }
            Node firstChild = element.getFirstChild();
            if (firstChild instanceof Text) {
                firstChild.setTextContent(firstChild.getTextContent().replaceFirst("^\\s+", ""));
            }
            Node lastChild = element.getLastChild();
            if (lastChild instanceof Text) {
                lastChild.setTextContent(lastChild.getTextContent().replaceFirst("\\s+$", ""));
            }