/** Class for detecting and converting Zawgyi-encoded data. */
public class MyanmarZawgyiConverter {
// For detecting if Myanmar text is encoded with Zawgyi vs. Unicode characters.
private static final Pattern ZAWGYI_DETECT_PATTERN =
PatternCache.get(
// A regular expression matched if text is Zawgyi encoding.
// Using the ranges 1033-1034 or 1060-1097 will report Shan, Karen,
// etc. as Zawgyi.
"[\u105a\u1060-\u1097]|" // Zawgyi characters outside Unicode range
+ "[\u1033\u1034]|" // These are Mon characters
+ "\u1031\u108f|"
+ "\u1031[\u103b-\u103e]|" // Medial right after \u1031
+ "[\u102b-\u1030\u1032]\u1031|" // Vowel sign right after before \u1031
+ " \u1031| \u103b|" // Unexpected characters after a space
+ "^\u1031|^\u103b|\u1038\u103b|\u1038\u1031|"
+ "[\u102d\u102e\u1032]\u103b|\u1039[^\u1000-\u1021]|\u1039$"
+ "|\u1004\u1039[\u1001-\u102a\u103f\u104e]" // Missing ASAT in Kinzi
+ "|\u1039[^u1000-\u102a\u103f\u104e]" // 1039 not before a consonant
// Out of order medials
+ "|\u103c\u103b|\u103d\u103b"
+ "|\u103e\u103b|\u103d\u103c"
+ "|\u103e\u103c|\u103e\u103d"
// Bad medial combos
+ "|\u103b\u103c"
// Out of order vowel signs
+ "|[\u102f\u1030\u102b\u102c][\u102d\u102e\u1032]"
+ "|[\u102b\u102c][\u102f\u102c]"
// Digit before diacritic
+ "|[\u1040-\u1049][\u102b-\u103e\u102b-\u1030\u1032\u1036\u1037\u1038\u103a]"
// Single digit 0, 7 at start
+ "|^[\u1040\u1047][^\u1040-\u1049]"
// Second 1039 with bad followers
+ "|[\u1000-\u102a\u103f\u104e]\u1039[\u101a\u101b\u101d\u101f\u1022-\u103f]"
// Other bad combos.
+ "|\u103a\u103e"
+ "|\u1036\u102b]"
// multiple upper vowels
+ "|\u102d[\u102e\u1032]|\u102e[\u102d\u1032]|\u1032[\u102d\u102e]"
// Multiple lower vowels
+ "|\u102f\u1030|\u1030\u102f"
// Multiple A vowels
+ "|\u102b\u102c|\u102c\u102b"
// Shan digits with vowels or medials or other signs
+ "|[\u1090-\u1099][\u102b-\u1030\u1032\u1037\u103a-\u103e]"
// Isolated Shan digit
+ "|[\u1000-\u10f4][\u1090-\u1099][\u1000-\u104f]"
+ "|^[\u1090-\u1099][\u1000-\u102a\u103f\u104e\u104a\u104b]"
+ "|[\u1000-\u104f][\u1090-\u1099]$"
// Diacritics with non-Burmese vowel signs
+ "|[\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074\u1082-\u108d"
+ "\u108f\u109a-\u109d]"
+ "[\u102b-\u103e]"
// Consonant 103a + some vowel signs
+ "|[\u1000-\u102a]\u103a[\u102d\u102e\u1032]"
// 1031 after other vowel signs
+ "|[\u102b-\u1030\u1032\u1036-\u1038\u103a]\u1031"
// Using Shan combining characters with other languages.
+ "|[\u1087-\u108d][\u106e-\u1070\u1072-\u1074]"
// Non-Burmese diacritics at start, following space, or following sections
+ "|^[\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074"
+ "\u1082-\u108d\u108f\u109a-\u109d]"
+ "|[\u0020\u104a\u104b][\u105e-\u1060\u1062-\u1064\u1067-\u106d"
+ "\u1071-\u1074\u1082-\u108d\u108f\u109a-\u109d]"
// Wrong order with 1036
+ "|[\u1036\u103a][\u102d-\u1030\u1032]"
// Odd stacking
+ "|[\u1025\u100a]\u1039"
// More mixing of non-Burmese languages
+ "|[\u108e-\u108f][\u1050-\u108d]"
// Bad diacritic combos.
+ "|\u102d-\u1030\u1032\u1036-\u1037]\u1039]"
// Dot before subscripted consonant
+ "|[\u1000-\u102a\u103f\u104e]\u1037\u1039"
// Odd subscript + vowel signs
+ "|[\u1000-\u102a\u103f\u104e]\u102c\u1039[\u1000-\u102a\u103f\u104e]"
// Medials after vowels
+ "|[\u102b-\u1030\u1032][\u103b-\u103e]"
// Medials
+ "|\u1032[\u103b-\u103e]"
// Medial with 101b
+ "|\u101b\u103c"
// Stacking too deeply: consonant 1039 consonant 1039 consonant
+ "|[\u1000-\u102a\u103f\u104e]\u1039[\u1000-\u102a\u103f\u104e]\u1039"
+ "[\u1000-\u102a\u103f\u104e]"
// Stacking pattern consonant 1039 consonant 103a other vowel signs
+ "|[\u1000-\u102a\u103f\u104e]\u1039[\u1000-\u102a\u103f\u104e]"
+ "[\u102b\u1032\u103d]"
// Odd stacking over u1021, u1019, and u1000
+ "|[\u1000\u1005\u100f\u1010\u1012\u1014\u1015\u1019\u101a]\u1039\u1021"
+ "|[\u1000\u1010]\u1039\u1019"
+ "|\u1004\u1039\u1000"
+ "|\u1015\u1039[\u101a\u101e]"
+ "|\u1000\u1039\u1001\u1036"
+ "|\u1039\u1011\u1032"
// Vowel sign in wrong order
+ "|\u1037\u1032"
+ "|\u1036\u103b"
// Duplicated vowel
+ "|\u102f\u102f");
// Transliteration to convert Burmese text in Zawgyi-encoded string to
// standard Unicode codepoints and ordering.
static final Transform<String, String> zawgyiUnicodeTransliterator =
// Transliteration rules, 07-Jan-2014.
Transliterator.createFromRules(
"zawgyi-unicode",
// Modern Burmese digits & Unicode code points.
"$nondigits = [^\u1040-\u1049];"
+ "$space = ' ';"
+ "$consonant = [\u1000-\u1021];"
+ "$vowelsign = [\u102B-\u1030\u1032];"
+ "$umedial = [\u103B-\u103E];"
+ "$vowelmedial = [\u102B-\u1030\u1032\u103B-\u103F];"
+ "$ukinzi = \u1004\u103A\u1039;"
+ "$zmedialra = [\u103B\u107E-\u1084];"
// #### STAGE (1): CODEPOINT MAPPING FROM ZAWGYI TO UNICODE
+ "($consonant) \u103A \u1064 > $ukinzi $1 \u103B;"
+ "($consonant) \u1064 > $ukinzi $1;"
+ "\u1064 > $ukinzi;"
+ "($consonant) \u108b > $ukinzi $1 \u102D;"
+ "($consonant) \u108C > $ukinzi $1 \u102E;"
+ "($consonant) \u108D > $ukinzi $1 \u1036;"
+ "($consonant) \u103A \u1033 \u108B > $ukinzi $1 \u103B \u102D \u102F;"
+ "($consonant) \u103A \u108b > $ukinzi $1 \u103B \u102D ;"
+ "($consonant) \u103A \u108C \u1033 > $ukinzi $1 \u103B \u102E \u102F;"
+ "($consonant) \u103A \u108C > $ukinzi $1 \u103B \u102E ;"
+ "($consonant) \u103A \u108D > $ukinzi $1 \u103B \u1036 ;"
+ "($consonant) \u103A \u108e > $1 \u103B \u102D \u1036 ;"
+ "\u108B > $ukinzi \u102D ;"
+ "\u108C > $ukinzi \u102E ;"
+ "\u108D > $ukinzi \u1036 ;"
+ "\u106A ($vowelsign) \u1038 > \u1025 $1 \u1038 ;"
+ "\u106A > \u1009 ;"
+ "\u106B > \u100A ;"
+ "\u108F > \u1014 ;"
+ "\u1090 > \u101B ;"
+ "\u1086 > \u103F ;"
+ "\u103A > \u103B ;"
+ "\u107D > \u103B ;"
+ "\u103C \u108A > \u103D \u103E;"
+ "\u103C > \u103D ;"
+ "\u108A > \u103D \u103E ;"
+ "\u103D > \u103E ;"
+ "\u1087 > \u103E ;"
+ "\u1088 > \u103E \u102F ;"
+ "\u1089 > \u103E \u1030 ;"
+ "\u1039 > \u103A ;"
+ "\u1033 > \u102F ;"
+ "\u1034 > \u1030 ;"
+ "\u105A > \u102B \u103A ;"
+ "\u108E > \u102D \u1036 ;"
+ "\u1031 \u1094 ($consonant) \u103D > $1 \u103E \u1031 \u1037 ;"
+ "\u1094 > \u1037 ;"
+ "\u1095 > \u1037 ;"
+ "\u1025 \u1061 > \u1009 \u1039 \u1001;"
+ "\u1025 \u1062 > \u1009 \u1039 \u1002;"
+ "\u1025 \u1065 > \u1009 \u1039 \u1005;"
+ "\u1025 \u1068 > \u1009 \u1039 \u1007;"
+ "\u1025 \u1076 > \u1009 \u1039 \u1013;"
+ "\u1025 \u1078 > \u1009 \u1039 \u1015;"
+ "\u1025 \u107A > \u1009 \u1039 \u1017;"
+ "\u1025 \u1079 > \u1009 \u1039 \u1016;"
+ "\u1060 > \u1039 \u1000 ;"
+ "\u1061 > \u1039 \u1001 ;"
+ "\u1062 > \u1039 \u1002 ;"
+ "\u1063 > \u1039 \u1003 ;"
+ "\u1065 > \u1039 \u1005 ;"
+ "\u1066 > \u1039 \u1006 ;"
+ "\u1067 > \u1039 \u1006 ;"
+ "\u1068 > \u1039 \u1007 ;"
+ "\u1069 > \u1039 \u1008 ;"
+ "\u106C > \u1039 \u100B ;"
+ "\u106D > \u1039 \u100C ;"
+ "\u1070 > \u1039 \u100F ;"
+ "\u1071 > \u1039 \u1010 ;"
+ "\u1072 > \u1039 \u1010 ;"
+ "\u1096 > \u1039 \u1010 \u103D;"
+ "\u1073 > \u1039 \u1011 ;"
+ "\u1074 > \u1039 \u1011 ;"
+ "\u1075 > \u1039 \u1012 ;"
+ "\u1076 > \u1039 \u1013 ;"
+ "\u1077 > \u1039 \u1014 ;"
+ "\u1078 > \u1039 \u1015 ;"
+ "\u1079 > \u1039 \u1016 ;"
+ "\u107A > \u1039 \u1017 ;"
+ "\u107B > \u1039 \u1018 ;"
+ "\u1093 > \u1039 \u1018 ;"
+ "\u107C > \u1039 \u1019 ;"
+ "\u1085 > \u1039 \u101C ;"
+ "\u106E > \u100D\u1039\u100D ;"
+ "\u106F > \u100D\u1039\u100E ;"
+ "\u1091 > \u100F\u1039\u100D ;"
+ "\u1092 > \u100B\u1039\u100C ;"
+ "\u1097 > \u100B\u1039\u100B ;"
+ "\u104E > \u104E\u1004\u103A\u1038 ;"
// #### STAGE (2): POST REORDERING RULES FOR UNICODE RENDERING
+ "::Null;"
+ "\u1044 \u103a > | \u104E \u103A ;"
+ "($nondigits) \u1040 ([\u102B-\u103F]) > $1 \u101D $2;"
+ "\u1031 \u1040 ($nondigits) > \u1031 \u101D $1;"
+ "\u1025 \u103A > \u1009 \u103A;"
+ "\u1025 \u102E > \u1026;"
+ "\u1037\u103A > \u103A\u1037;"
+ "\u1036 ($umedial*) ($vowelsign+) > $1 $2 \u1036 ;"
+ "([\u102B\u102C\u102F\u1030]) ([\u102D\u102E\u1032]) > $2 $1;"
+ "\u103C ($consonant) > $1 \u103C;"
// #### Stage 3
+ "::Null;"
+ "([\u1031]+) $ukinzi ($consonant) > $ukinzi $2 $1;"
+ "([\u1031]+) ($consonant) ($umedial+) > $2 $3 $1;"
+ "([\u1031]+) ($consonant) } [^\u103B\u103C\u103D\u103E] > $2 $1;"
+ "\u103C \u103A \u1039 ($consonant) > \u103A \u1039 $1 \u103C;"
+ "\u1036 ($umedial+) > $1 \u1036;"
// #### Stage 4
+ "::Null;"
+ "([\u103C\u103D\u103E]+) \u103B > \u103B $1;"
+ "([\u103D\u103E]+) \u103C > \u103C $1;"
+ "\u103E\u103D > \u103D\u103E ;"
+ "([\u1031]+) ($vowelsign*) \u1039 ($consonant) > \u1039 $3 $1 $2;"
+ "($vowelsign+) \u1039 ($consonant) > \u1039 $2 $1;"
+ "($umedial*) ([\u1031]+) ($umedial*) > $1 $3 $2;"
+ "\u1037 ([\u102D-\u1030\u1032\u1036]) > $1 \u1037;"
+ "\u1037 ($umedial+) > $1 \u1037;"
+ "($vowelsign+) ($umedial+) > $2 $1;"
+ "($consonant) ([\u102B-\u1032\u1036\u103B-\u103E]) \u103A ($consonant)> $1 \u103A $2 $3;"
// #### Stage 5. More reorderings
+ "::Null;"
+ "([\u1031]+) ($umedial+) > $2 $1;"
+ "($vowelsign) ($umedial) > $2 $1;"
+ "([\u103C\u103D\u103E]) \u103B > \u103B $1;"
+ "([\u103D\u103E]) \u103C > \u103C $1;"
+ "\u103E\u103D > \u103D\u103E ;"
+ "\u1038 ([$vowelmedial]) > $1 \u1038;"
+ "\u1038 ([\u1036\u1037\u103A]) > $1 \u1038;"
// ### Stage 6
+ "::Null;"
+ "($consonant) \u103B \u103A > $1 \u103A \u103B;"
+ "([\u103C\u103D\u103E]) \u103B > \u103B $1;"
+ "([\u103D\u103E]) \u103C > \u103C $1;"
+ "\u103E\u103D > \u103D\u103E ;"
+ "([\u102D-\u1030\u1032]) \u103A ($consonant) \u103A > $1 $2 \u103A;"
+ "\u102F \u103A > \u102F;"
+ "\u102D \u102E > \u102E;"
+ "\u102F \u1030 > \u102F;"
+ "\u102B [\u102B]+ > \u102B;"
+ "\u102C [\u102C]+ > \u102C;"
+ "\u102D [\u102D]+ > \u102D;"
+ "\u102E [\u102E]+ > \u102E;"
+ "\u102F [\u102F]+ > \u102F;"
+ "\u1030 [\u1030]+ > \u1030;"
+ "\u1031 [\u1031]+ > \u1031;"
+ "\u1032 [\u1032]+ > \u1032;"
+ "\u103A [\u103A]+ > \u103A;"
+ "\u103B [\u103B]+ > \u103B;"
+ "\u103C [\u103C]+ > \u103C;"
+ "\u103D [\u103D]+ > \u103D;"
+ "\u103E [\u103E]+ > \u103E;"
// Try to correctly render diacritics after a space.
+ "$space([\u102e\u1037\u103a]) > \u00A0 $1 ;",
Transliterator.FORWARD);
// TODO(ccorn): set a filter on this to restrict to range \u1000-\u109f ???
/**
* Detects Zawgyi encoding in specified input.
*
* @param value the string to be tested
* @return True if text is Zawgyi encoded. False if Unicode
*/
public static Boolean isZawgyiEncoded(String value) {
Matcher matcher = ZAWGYI_DETECT_PATTERN.matcher(value);
return matcher.find();
}
/**
* Converts Zawgyi-encoded string into Unicode equivalent.
*
* @param value the Zawgyi string to be converted
* @return the Unicode string from converstion
*/
public static String convertZawgyiToUnicode(String value) {
return zawgyiUnicodeTransliterator.transform(value);
}
/**
* Normalizes Burmese characters in specified input, detecting and converting Zawgyi encoding to
* Unicode form.
*
* @param value the string to be normalized
* @return the normalized Unicode string
*/
public static String standardizeMyanmar(String value) {
if (isZawgyiEncoded(value)) {
// Call the converter to produce a Unicode result.
return zawgyiUnicodeTransliterator.transform(value);
}
return value; // Unchanged since it was not Zawgyi.
}
}
public class UExtension {
static SupplementalDataInfo data =
SupplementalDataInfo.getInstance(CLDRPaths.SUPPLEMENTAL_DIRECTORY);
static Pattern SEP = PatternCache.get("[-_]");
static Pattern SPACE = PatternCache.get("\\s");
static Pattern ALPHANUM = PatternCache.get("[0-9A-Za-z]{2,8}");
static Pattern CODEPOINTS =
PatternCache.get("(10|[0-9A-Fa-f])?[0-9A-Fa-f]{4}(\\s(10|[0-9A-Fa-f])?[0-9A-Fa-f]{4})*");
static Relation<String, String> validKeyTypes = data.getBcp47Keys();
private boolean validating = false;
private SortedMap<String, List<String>> keyTypes = new TreeMap<String, List<String>>();
private Set<String> attributes = new TreeSet<String>();
public Set<String> getKeys() {
return keyTypes.keySet();
}
public List<String> getTypes(String key) {
return keyTypes.get(key);
}
public Set<String> getAttributes() {
return attributes;
}
public boolean isValidating() {
return validating;
}
public UExtension setValidating(boolean validating) {
this.validating = validating;
return this;
}
/**
* Parses the subtags after the -u-
*
* @param source
* @return
*/
public UExtension parse(String source) {
// the subtags that are up to the first two letter are attributes
String key = null;
List<String> list = null;
Set<String> validSubtypes = null;
Matcher alphanum = ALPHANUM.matcher("");
for (String subtag : SEP.split(source)) {
if (!alphanum.reset(subtag).matches()) {
throw new IllegalArgumentException(
"Invalid subtag contents, must be [0-9 A-Z a-z]{2,8}: " + subtag);
}
subtag = subtag.toLowerCase(Locale.ENGLISH); // normalize
if (subtag.length() == 2) { // key
if (list != null) { // check size of previous list
if (list.size() == 0 || !key.equals("vt") && list.size() > 1) {
throw new IllegalArgumentException(
"Illegal number of subtypes for: " + key + "\t" + list);
}
}
key = subtag;
if (validating) {
validSubtypes = validKeyTypes.getAll(key);
if (validSubtypes == null) {
throw new IllegalArgumentException("Invalid key: " + key);
}
}
list = keyTypes.get(key);
if (list != null) {
throw new IllegalArgumentException("Multiple keys with same value: " + subtag);
}
list = new ArrayList<String>();
keyTypes.put(key, list);
} else { // add subtype
if (key == null) {
if (validating) {
throw new IllegalArgumentException("No attributes currently valid: " + subtag);
}
attributes.add(subtag);
break;
}
if (validating) {
if (key.equals("vt")) {
if (!CODEPOINTS.matcher(subtag).matches()) {
throw new IllegalArgumentException("Illegal subtypes: " + key + "-" + subtag);
}
} else if (!validSubtypes.contains(subtag)) {
throw new IllegalArgumentException("Illegal subtypes: " + key + "-" + subtag);
}
}
list.add(subtag);
}
}
// protect
attributes = Collections.unmodifiableSet(attributes);
for (String key2 : keyTypes.keySet()) {
list = keyTypes.get(key2);
keyTypes.put(key2, Collections.unmodifiableList(list));
}
keyTypes = Collections.unmodifiableSortedMap(keyTypes);
return this;
}
public String toString() {
return "{attributes=" + attributes + ", keyTypes=" + keyTypes + "}";
}
}