private static String escapeXML()

in src/main/java/org/apache/commons/scxml2/io/SCXMLWriter.java [299:342]

40 lines of code
9 McCabe index (conditional complexity)


    private static String escapeXML(final String str) {
        if (str == null) {
            return null;
        }

        // Make the writer an arbitrary bit larger than the source string
        final int len = str.length();
        final StringWriter stringWriter = new StringWriter(len + 8);

        for (int i = 0; i < len; i++) {
            final char c = str.charAt(i);
            String entityName = null; // Look for XML 1.0 predefined entities
            switch (c) {
                case '"':
                    entityName = "quot";
                    break;
                case '&':
                    entityName = "amp";
                    break;
                case '<':
                    entityName = "lt";
                    break;
                case '>':
                    entityName = "gt";
                    break;
                default:
            }
            if (entityName == null) {
                if (c > 0x7F) {
                    stringWriter.write("&#");
                    stringWriter.write(Integer.toString(c));
                    stringWriter.write(';');
                } else {
                    stringWriter.write(c);
                }
            } else {
                stringWriter.write('&');
                stringWriter.write(entityName);
                stringWriter.write(';');
            }
        }

        return stringWriter.toString();
    }