public static Lang loadFromResource()

in src/main/java/org/apache/commons/codec/language/bm/Lang.java [140:186]
37 lines of code
8 McCabe index (conditional complexity)

    public static Lang loadFromResource(final String languageRulesResourceName, final Languages languages) {
        final List<LangRule> rules = new ArrayList<>();
        try (final Scanner scanner = new Scanner(Resources.getInputStream(languageRulesResourceName),
                ResourceConstants.ENCODING)) {
            boolean inExtendedComment = false;
            while (scanner.hasNextLine()) {
                final String rawLine = scanner.nextLine();
                String line = rawLine;
                if (inExtendedComment) {
                    // check for closing comment marker, otherwise discard doc comment line
                    if (line.endsWith(ResourceConstants.EXT_CMT_END)) {
                        inExtendedComment = false;
                    }
                } else if (line.startsWith(ResourceConstants.EXT_CMT_START)) {
                    inExtendedComment = true;
                } else {
                    // discard comments
                    final int cmtI = line.indexOf(ResourceConstants.CMT);
                    if (cmtI >= 0) {
                        line = line.substring(0, cmtI);
                    }

                    // trim leading-trailing whitespace
                    line = line.trim();

                    if (line.isEmpty()) {
                        continue; // empty lines can be safely skipped
                    }

                    // split it up
                    final String[] parts = line.split("\\s+");

                    if (parts.length != 3) {
                        throw new IllegalArgumentException("Malformed line '" + rawLine +
                                "' in language resource '" + languageRulesResourceName + "'");
                    }

                    final Pattern pattern = Pattern.compile(parts[0]);
                    final String[] langs = parts[1].split("\\+");
                    final boolean accept = parts[2].equals("true");

                    rules.add(new LangRule(pattern, new HashSet<>(Arrays.asList(langs)), accept));
                }
            }
        }
        return new Lang(rules, languages);
    }