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
diff --git a/telephony/java/android/telephony/PhoneNumberUtils.java b/telephony/java/android/telephony/PhoneNumberUtils.java
index c1713a5..51922da 100644
--- a/telephony/java/android/telephony/PhoneNumberUtils.java
+++ b/telephony/java/android/telephony/PhoneNumberUtils.java
@@ -122,6 +122,17 @@
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 @@
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) {