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Commit 4eb45cc9 authored by inshik's avatar inshik Committed by Jaikumar Ganesh
Browse files

Add utility functions for pause and tonewait pause. 

Add a function that converts a string with RFC3601 defintion
of pause and wait into android representation.

Change-Id: Id8a17c3a166422d62247acb227506549990ace12
parent 89d55ad7

telephony/java/android/telephony/PhoneNumberUtils.java

+37 −0
Original line number Diff line number Diff line
@@ -122,6 +122,17 @@ public class PhoneNumberUtils 
        return c == PAUSE || c == WAIT;

    }



    private static boolean

    isPause (char c){

        return c == 'p'||c == 'P';

    }



    private static boolean

    isToneWait (char c){

        return c == 'w'||c == 'W';

    }





    /** Returns true if ch is not dialable or alpha char */

    private static boolean isSeparator(char ch) {

        return !isDialable(ch) && !(('a' <= ch && ch <= 'z') || ('A' <= ch && ch <= 'Z'));
@@ -278,6 +289,32 @@ public class PhoneNumberUtils 
        return ret.toString();

    }



    /**

     * Converts pause and tonewait pause characters

     * to Android representation.

     * RFC 3601 says pause is 'p' and tonewait is 'w'.

     * @hide

     */

    public static String convertPreDial(String phoneNumber) {

        if (phoneNumber == null) {

            return null;

        }

        int len = phoneNumber.length();

        StringBuilder ret = new StringBuilder(len);



        for (int i = 0; i < len; i++) {

            char c = phoneNumber.charAt(i);



            if (isPause(c)) {

                c = PAUSE;

            } else if (isToneWait(c)) {

                c = WAIT;

            }

            ret.append(c);

        }

        return ret.toString();

    }



    /** or -1 if both are negative */

    static private int

    minPositive (int a, int b) {