public static String escapeJava()

in platforms/karaf/commands/src/main/java/org/apache/camel/karaf/commands/internal/KarafStringEscapeUtils.java [155:217]

• 62 lines of code
• 15 McCabe index (conditional complexity)

    public static String escapeJava(String str) {
        if (str == null) {
            return null;
        }
        int sz = str.length();
        StringBuffer out = new StringBuffer(sz * 2);
        for (int i = 0; i < sz; i++) {
            char ch = str.charAt(i);
            // handle unicode
            if (ch > 0xfff) {
                out.append("\\u").append(hex(ch));
            } else if (ch > 0xff) {
                out.append("\\u0").append(hex(ch));
            } else if (ch > 0x7f) {
                out.append("\\u00").append(hex(ch));
            } else if (ch < 32) {
                switch (ch) {
                    case '\b':
                        out.append('\\');
                        out.append('b');
                        break;
                    case '\n':
                        out.append('\\');
                        out.append('n');
                        break;
                    case '\t':
                        out.append('\\');
                        out.append('t');
                        break;
                    case '\f':
                        out.append('\\');
                        out.append('f');
                        break;
                    case '\r':
                        out.append('\\');
                        out.append('r');
                        break;
                    default:
                        if (ch > 0xf) {
                            out.append("\\u00").append(hex(ch));
                        } else {
                            out.append("\\u000").append(hex(ch));
                        }
                        break;
                }
            } else {
                switch (ch) {
                    case '"':
                        out.append('\\');
                        out.append('"');
                        break;
                    case '\\':
                        out.append('\\');
                        out.append('\\');
                        break;
                    default:
                        out.append(ch);
                        break;
                }
            }
        }
        return out.toString();
    }