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CODEC-281: Double metaphone encode kc as K #36

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CODEC-281: Double metaphone encode kc as K #36

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444f8d2
CODEC-281: encode kc as K
Feb 18, 2020
eb9ca3d
CODEC-281: add test on Kirkcaldy in DoubleMetaphone2Test
Feb 19, 2020
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22 changes: 20 additions & 2 deletions src/main/java/org/apache/commons/codec/language/DoubleMetaphone.java
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Expand Up @@ -132,8 +132,7 @@ public String doubleMetaphone(String value, final boolean alternate) {
index = handleJ(value, result, index, slavoGermanic);
break;
case 'K':
result.append('K');
index = charAt(value, index + 1) == 'K' ? index + 2 : index + 1;
index = handleK(value, result, index);
break;
case 'L':
index = handleL(value, result, index);
Expand Down Expand Up @@ -543,6 +542,25 @@ private int handleJ(final String value, final DoubleMetaphoneResult result, int
return index;
}

/**
* Handles 'K' cases.
*/
private int handleK(final String value, final DoubleMetaphoneResult result, int index) {
result.append('K');
if (charAt(value, index + 1) == 'K') {
index += 2;
} else if ((charAt(value, index + 1) == 'C')) { //-- in "Kirkcaldy", "kc" should be encoded "K" instead of "KK" --//
final DoubleMetaphoneResult nextCharResult = new DoubleMetaphoneResult(this.getMaxCodeLen());
int nextCharIndex = handleC(value, nextCharResult, index + 1);
if (nextCharResult.getPrimary().equals("K")) {
index = nextCharIndex;
}
} else {
index++;
}
return index;
}

/**
* Handles 'L' cases.
*/
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1 change: 1 addition & 0 deletions src/test/java/org/apache/commons/codec/language/DoubleMetaphone2Test.java
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Expand Up @@ -512,6 +512,7 @@ public class DoubleMetaphone2Test extends StringEncoderAbstractTest<DoubleMetaph
{"King", "KNK", "KNK"},
{"Kinsey", "KNS", "KNS"},
{"Kirk", "KRK", "KRK"},
{"Kirkcaldy", "KRKL", "KRKL"},
{"Kirton", "KRTN", "KRTN"},
{"Kistler", "KSTL", "KSTL"},
{"Kitchen", "KXN", "KXN"},
Expand Down