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Fixes some charset-related errors

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This commit is contained in:
konsoletyper 2014-03-13 17:20:28 +04:00
parent 3a9be43894
commit c6ff897bdd
4 changed files with 8 additions and 9 deletions
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4
teavm-classlib/src/main/java/org/teavm/classlib/impl/charset/UTF16Helper.java
View File

@ -51,8 +51,8 @@ public class UTF16Helper {
}
public static int buildCodePoint(char a, char b) {
return ((a & SURROGATE_BIT_INV_MASK) << MEANINGFUL_SURROGATE_BITS) |
(b & SURROGATE_BIT_INV_MASK) + SUPPLEMENTARY_PLANE;
return (((a & SURROGATE_BIT_INV_MASK) << MEANINGFUL_SURROGATE_BITS) | (b & SURROGATE_BIT_INV_MASK)) +
SUPPLEMENTARY_PLANE;
}
public static boolean isSurrogate(char c) {

2
teavm-classlib/src/main/java/org/teavm/classlib/impl/charset/UTF8Charset.java
View File

@ -35,7 +35,7 @@ public class UTF8Charset extends Charset {
dest.put((byte)(0x80 | (ch & 0x3F)));
} else if (UTF16Helper.isHighSurrogate(ch)) {
char low = source.get();
if (!UTF16Helper.isLowSurrogate(ch)) {
if (!UTF16Helper.isLowSurrogate(low)) {
source.back(1);
dest.put((byte)'?');
} else {

7
teavm-classlib/src/main/java/org/teavm/classlib/java/lang/TCharacter.java
View File

@ -198,11 +198,10 @@ public class TCharacter extends TObject implements TComparable<TCharacter> {
}
public static int codePointBefore(TCharSequence seq, int index) {
if (index == 1 || !UTF16Helper.isLowSurrogate(seq.charAt(index - 2)) ||
!UTF16Helper.isHighSurrogate(seq.charAt(index - 2))) {
if (index == 1 || !isLowSurrogate(seq.charAt(index - 1)) || !isHighSurrogate(seq.charAt(index - 2))) {
return seq.charAt(index - 1);
}
return UTF16Helper.buildCodePoint(seq.charAt(index - 2), seq.charAt(index - 1));
return toCodePoint(seq.charAt(index - 2), seq.charAt(index - 1));
}
public static int codePointBefore(char[] a, int index) {
@ -329,7 +328,7 @@ public class TCharacter extends TObject implements TComparable<TCharacter> {
}
public static int codePointCount(TCharSequence seq, int beginIndex, int endIndex) {
int count = endIndex;
int count = endIndex - beginIndex;
--endIndex;
for (int i = beginIndex; i < endIndex; ++i) {
if (UTF16Helper.isHighSurrogate(seq.charAt(i)) && UTF16Helper.isLowSurrogate(seq.charAt(i + 1))) {

4
teavm-classlib/src/main/java/org/teavm/classlib/java/lang/TString.java
View File

@ -95,7 +95,7 @@ public class TString extends TObject implements TSerializable, TComparable<TStri
this.characters = new char[sb.length()];
ByteBuffer source = new ByteBuffer(bytes, offset, offset + length);
char[] destChars = new char[TMath.max(8, TMath.min(length * 2, 1024))];
CharBuffer dest = new CharBuffer(destChars, 0, length * 2);
CharBuffer dest = new CharBuffer(destChars, 0, destChars.length);
while (!source.end()) {
charset.decode(source, dest);
sb.append(destChars, 0, dest.position());
@ -269,7 +269,7 @@ public class TString extends TObject implements TSerializable, TComparable<TStri
char lo = UTF16Helper.lowSurrogate(ch);
for (int i = fromIndex; i >= 1; --i) {
if (characters[i] == lo && characters[i - 1] == hi) {
return i;
return i - 1;
}
}
return -1;