private void createNodeBuilders()

in src/main/java/org/apache/commons/configuration2/INIConfiguration.java [508:544]
34 lines of code
8 McCabe index (conditional complexity)

    private void createNodeBuilders(final BufferedReader in, final ImmutableNode.Builder rootBuilder, final Map<String, ImmutableNode.Builder> sectionBuilders)
        throws IOException {
        ImmutableNode.Builder sectionBuilder = rootBuilder;
        String line = in.readLine();
        while (line != null) {
            line = line.trim();
            if (!isCommentLine(line)) {
                if (isSectionLine(line)) {
                    final int length = sectionInLineCommentsAllowed ? line.indexOf("]") : line.length() - 1;
                    String section = line.substring(1, length);
                    if (section.isEmpty()) {
                        // use space for sections with no key
                        section = EMPTY_KEY;
                    }
                    sectionBuilder = sectionBuilders.computeIfAbsent(section, k -> new ImmutableNode.Builder());
                } else {
                    String key;
                    String value = "";
                    final int index = findSeparator(line);
                    if (index >= 0) {
                        key = line.substring(0, index);
                        value = parseValue(line.substring(index + 1), in);
                    } else {
                        key = line;
                    }
                    key = key.trim();
                    if (key.isEmpty()) {
                        // use space for properties with no key
                        key = EMPTY_KEY;
                    }
                    createValueNodes(sectionBuilder, key, value);
                }
            }

            line = in.readLine();
        }
    }