/** Quasi-XML for humans */
public String toString() {
return "<GC valid="
+ valid
+ " pretty=\""
+ UnicodeUtils.unicodeStringToPrettyString(getNfthdl())
+ "\"/>";
}
/** Returns NFTHDL-decomposed Unicode representing this grapheme cluster. */
private void setNfthdl(String nfthdl) {
if (debug) {
System.out.println("debug: GC is " + UnicodeUtils.unicodeStringToPrettyString(nfthdl));
}
this.nfthdl = nfthdl;
ThdlDebug.verify(nfthdl.length() > 0); // TODO(dchandler): assert only
if (nfthdl.length() < 1) valid = false;
valid = validGcRegex.matcher(nfthdl).matches();
}
/**
* Returns EWTS that is valid but not beautiful. It's better suited for consumption by computer
* programs than by humans, though it'll do in a pinch. (Humans like to see [rnams] instead of
* [r+namasa].)
*
* @return null if this grapheme cluster has no valid EWTS representation or valid-but-ugly EWTS
* otherwise
*/
public StringBuffer getEwtsForComputers() {
if (!valid) {
return null;
}
StringBuffer sb = new StringBuffer();
// We use ch after the loop. Initialization is not really
// needed; it's just to avoid compiler errors.
char ch = 'X';
boolean seenVowel = false;
String lastEwts = "";
boolean added_aVOWEL = false;
for (int i = 0; i < nfthdl.length(); i++) {
ch = nfthdl.charAt(i);
String ewts = UnicodeCodepointToThdlWylie.getThdlWylieForUnicodeCodepoint(ch);
if (i + 1 < nfthdl.length()) { // lookahead
// Even computers want to see kI because the spec
// isn't (or at least hasn't always been) crystal
// clear that kA+i is equivalent to kI.
if (('\u0f55' == ch || '\u0fa5' == ch) && '\u0f39' == nfthdl.charAt(i + 1)) {
++i;
ewts = "f"; // TODO(dchandler): hard-coded EWTS
} else if (('\u0f56' == ch || '\u0fa6' == ch) && '\u0f39' == nfthdl.charAt(i + 1)) {
++i;
ewts = "v"; // TODO(dchandler): hard-coded EWTS
} else if ('\u0f71' == ch && '\u0f72' == nfthdl.charAt(i + 1)) {
++i;
ewts = THDLWylieConstants.I_VOWEL;
// NOTE: we could normalize to 0f73 and 0f75 when
// possible in NFTHDL. That's closer to EWTS and
// would avoid these two special cases.
} else if ('\u0f71' == ch && '\u0f74' == nfthdl.charAt(i + 1)) {
++i;
ewts = THDLWylieConstants.U_VOWEL;
}
}
if (null == ewts && UnicodeUtils.isInTibetanRange(ch)) {
return null;
}
if (UnicodeUtils.isSubjoinedConsonant(ch) || (seenVowel && isVowel(ch)))
sb.append(THDLWylieConstants.WYLIE_SANSKRIT_STACKING_KEY);
if (isWowelRequiringPrecedingVowel(ch) && !seenVowel) {
if (!added_aVOWEL) {
added_aVOWEL = true;
sb.append(THDLWylieConstants.WYLIE_aVOWEL); // paM, no pM
}
}
if (isVowel(ch)) {
seenVowel = true;
if (lastEwts == "a") {
sb.deleteCharAt(sb.length() - 1);
}
}
sb.append(ewts);
lastEwts = ewts;
}
if ((UnicodeUtils.isNonSubjoinedConsonant(ch)
|| UnicodeUtils.isSubjoinedConsonant(ch)
|| '\u0f39' == ch)
&& '\u0f68' != ch) {
ThdlDebug.verify(!added_aVOWEL);
sb.append(THDLWylieConstants.WYLIE_aVOWEL);
}
return sb;
}