add symbols map for pattern character

[gufengwyx8]

No description provided.

[coveralls]

Coverage increased (+13.03%) to 99.338% when pulling fa0954c on gufengwyx8:master into 0ae8ff3 on VerbalExpressions:master.

[lanwen]

I'd prefer initializer

 private static final Map<Character, Integer> SYMBOL_MAP = new HashMap<Character, Integer>() {{
        put(...);
        put(...);
    }} ;

which is more readable imho

[coveralls]

Coverage increased (+13.03%) to 99.338% when pulling cd44fa0 on gufengwyx8:master into 0ae8ff3 on VerbalExpressions:master.

[gufengwyx8]

Thank you for your advice!

[lanwen]

thanks!