83 lines
2.9 KiB
Java
83 lines
2.9 KiB
Java
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/*
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The contents of this file are subject to the THDL Open Community License
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Version 1.0 (the "License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License on the THDL web site
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(http://www.thdl.org/).
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Software distributed under the License is distributed on an "AS IS" basis,
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WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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License for the specific terms governing rights and limitations under the
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License.
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The Initial Developer of this software is the Tibetan and Himalayan Digital
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Library (THDL). Portions created by the THDL are Copyright 2004 THDL.
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All Rights Reserved.
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Contributor(s): ______________________________________.
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*/
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package org.thdl.tib.text.ttt;
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/** A singleton class that should contain (but due to laziness and
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* ignorance probably does not contain) all the traits that make EWTS
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* transliteration different from other (say, ACIP) transliteration
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* schemes. */
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final class EWTSTraits implements TTraits {
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/** sole instance of this class */
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private static EWTSTraits singleton = null;
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/** Just a constructor. */
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private EWTSTraits() { }
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/** */
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public static EWTSTraits instance() {
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if (null == singleton) {
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singleton = new EWTSTraits();
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}
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return singleton;
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}
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/** Returns ".". */
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public String disambiguator() { return "."; }
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/** Returns '.'. */
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public char disambiguatorChar() { return '.'; }
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public boolean hasSimpleError(TPair p) {
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return ("a".equals(p.getLeft()) && null == p.getRight()); // TODO(DLC)[EWTS->Tibetan]: (a.e) is bad, one of (.a) or (a.) is bad
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}
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/** {tsh}, the longest consonant, has 3 characters, so this is
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* three. */
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public int maxConsonantLength() { return 3; }
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/** {-i~M`}, in a tie for the longest wowel, has 6 characters, so
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* this is six. (No, 'l-i' and 'r-i' are not wowels (but '-i'
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* is). */
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public int maxWowelLength() { return 5; }
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// TODO(DLC)[EWTS->Tibetan]: u,e,i,o? If not, document the special treatment in this function's comment
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public boolean isConsonant(String s) {
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// TODO(DLC)[EWTS->Tibetan]: just g for now
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return "g".equals(s);
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}
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public boolean isWowel(String s) {
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// TODO(DLC)[EWTS->Tibetan]: all non-consonant combiners? 0f71 0f87 etc.?
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return ("a".equals(s)
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|| "e".equals(s)
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|| "i".equals(s)
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|| "o".equals(s)
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|| "u".equals(s)
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|| "?".equals(s) // TODO(DLC)[EWTS->Tibetan]: 0f84 virama???
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// TODO(DLC)[EWTS->Tibetan]: & ~M` ~M ???
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|| "U".equals(s)
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|| "I".equals(s)
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|| "A".equals(s)
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|| "-i".equals(s)
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|| "-I".equals(s)
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|| "H".equals(s)
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|| "M".equals(s)); // TODO(DLC)[EWTS->Tibetan]:???
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}
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}
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