Java Code Examples for java.nio.CharBuffer#charAt()
The following examples show how to use
java.nio.CharBuffer#charAt() .
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Example 1
| Source File: EditableSecureBuffer.java From edslite with GNU General Public License v2.0 | 6 votes |
|
/**
* Return the char at the specified offset within the buffer.
*/
@Override
public char charAt(int where) {
if(VERBOSE_LOG) Logger.debug(TAG + ": in charAt");
CharBuffer cb = _sb.getCharBuffer();
if(cb == null)
return ' ';
cb.clear();
int len = cb.capacity() - mGapLength;
if (where < 0) {
throw new IndexOutOfBoundsException("charAt: " + where + " < 0");
} else if (where >= len) {
throw new IndexOutOfBoundsException("charAt: " + where + " >= length " + len);
}
if (where >= mGapStart)
return cb.charAt(where + mGapLength);
else
return cb.charAt(where);
}
Example 2
| Source File: Converter.java From ttt with BSD 2-Clause "Simplified" License | 6 votes |
|
private String[] parseLines(CharBuffer cb, Charset encoding) {
List<String> lines = new java.util.ArrayList<String>();
StringBuffer sb = new StringBuffer();
while (cb.hasRemaining()) {
while (cb.hasRemaining()) {
char c = cb.get();
if (c == '\n') {
break;
} else if (c == '\r') {
if (cb.hasRemaining()) {
c = cb.charAt(0);
if (c == '\n')
cb.get();
}
break;
} else {
sb.append(c);
}
}
lines.add(sb.toString());
sb.setLength(0);
}
cb.rewind();
return lines.toArray(new String[lines.size()]);
}
Example 3
| Source File: TimedTextVerifier.java From ttt with BSD 2-Clause "Simplified" License | 6 votes |
|
private String[] parseLines(CharBuffer cb, Charset encoding) {
List<String> lines = new java.util.ArrayList<String>();
StringBuffer sb = new StringBuffer();
while (cb.hasRemaining()) {
while (cb.hasRemaining()) {
char c = cb.get();
if (c == '\n') {
break;
} else if (c == '\r') {
if (cb.hasRemaining()) {
c = cb.charAt(0);
if (c == '\n')
cb.get();
}
break;
} else {
sb.append(c);
}
}
lines.add(sb.toString());
sb.setLength(0);
}
cb.rewind();
return lines.toArray(new String[lines.size()]);
}
Example 4
| Source File: RestartOptions.java From ttt with BSD 2-Clause "Simplified" License | 6 votes |
|
private static Token getWhitespace(CharBuffer cb, boolean consume) {
int i = 0; // index from cb[position]
int n = cb.remaining(); // # indices remaining
StringBuffer sb = new StringBuffer();
while (i < n) {
char c = cb.charAt(i);
if (Character.isWhitespace(c)) {
sb.append(c);
++i;
} else
break;
}
if (sb.length() > 0) {
if (consume)
cb.position(cb.position() + i);
return new Token(Token.Type.SPACE, sb.toString());
} else
return null;
}
Example 5
| Source File: OsglConfig.java From java-tool with Apache License 2.0 | 6 votes |
|
@Override
public boolean test(Readable readable) {
CharBuffer buf = CharBuffer.allocate(100);
try {
int n = readable.read(buf);
if (n < 0) {
return false;
}
buf.flip();
for (int i = 0; i < n; ++i) {
char c = buf.charAt(i);
if (Character.isISOControl(c)) {
if (c != '\n' && c != '\r') {
return true;
}
}
}
return false;
} catch (IOException e) {
throw E.ioException(e);
} finally {
buf.clear();
}
}
Example 6
| Source File: RestartOptions.java From ttt with BSD 2-Clause "Simplified" License | 6 votes |
|
private static Token getIdent(CharBuffer cb, boolean consume) {
int i = 0; // index from cb[position]
int n = cb.remaining(); // # indices remaining
char c;
StringBuffer sb = new StringBuffer();
c = (i < n) ? cb.charAt(i) : 0;
if (XML.isNCNameCharStart(c)) {
sb.append(c);
++i;
while (i < n) {
c = (i < n) ? cb.charAt(i) : 0;
if (XML.isNCNameCharPart(c)) {
sb.append(c);
++i;
} else
break;
}
}
if (sb.length() > 0) {
if (consume)
cb.position(cb.position() + i);
return new Token(Token.Type.IDENT, sb.toString());
} else
return null;
}
Example 7
| Source File: Condition.java From ttt with BSD 2-Clause "Simplified" License | 6 votes |
|
private static Token getWhitespace(CharBuffer cb, boolean consume) {
int i = 0; // index from cb[position]
int n = cb.remaining(); // # indices remaining
StringBuffer sb = new StringBuffer();
while (i < n) {
char c = cb.charAt(i);
if (Character.isWhitespace(c)) {
sb.append(c);
++i;
} else
break;
}
if (sb.length() > 0) {
if (consume)
cb.position(cb.position() + i);
return new Token(Token.Type.SPACE, sb.toString());
} else
return null;
}
Example 8
| Source File: Condition.java From ttt with BSD 2-Clause "Simplified" License | 6 votes |
|
private static Token getIdent(CharBuffer cb, boolean consume) {
int i = 0; // index from cb[position]
int n = cb.remaining(); // # indices remaining
char c;
StringBuffer sb = new StringBuffer();
c = (i < n) ? cb.charAt(i) : 0;
if (XML.isNCNameCharStart(c)) {
sb.append(c);
++i;
while (i < n) {
c = (i < n) ? cb.charAt(i) : 0;
if (XML.isNCNameCharPart(c)) {
sb.append(c);
++i;
} else
break;
}
}
if (sb.length() > 0) {
if (consume)
cb.position(cb.position() + i);
return new Token(Token.Type.IDENT, sb.toString());
} else
return null;
}
Example 9
| Source File: TestAll.java From netbeans with Apache License 2.0 | 5 votes |
|
public int read(CharBuffer cb) throws IOException {
if(cb==null) throw new IOException("error");
int i = 0;
int count = 0;
LOOP: while(cb.charAt(i)==' ') {
i++;
count++;
if(count>KONST) break LOOP;
}
return 0;
}
Example 10
| Source File: GraphIndexTransaction.java From hugegraph with Apache License 2.0 | 5 votes |
|
private static String increaseString(String value) {
int length = value.length();
CharBuffer cbuf = CharBuffer.wrap(value.toCharArray());
char last = cbuf.charAt(length - 1);
E.checkArgument(last == '!' || LongEncoding.validB64Char(last),
"Invalid character '%s' for String index", last);
cbuf.put(length - 1, (char) (last + 1));
return cbuf.toString();
}
Example 11
| Source File: RestartOptions.java From ttt with BSD 2-Clause "Simplified" License | 5 votes |
|
private static Token getString(CharBuffer cb, boolean consume) {
int i = 0; // index from cb[position]
int n = cb.remaining(); // # indices remaining
char d; // string delimiter
StringBuffer sb = new StringBuffer();
// get string delimiter
d = (i < n) ? cb.charAt(i) : 0;
if ((d == '\'') || (d == '\"')) {
++i;
// get delimited content, handling escapes
char c = 0;
while (i < n) {
c = (i < n) ? cb.charAt(i) : 0;
if (c == d) {
++i;
break;
} else if (c == '\\') {
++i;
if (i < n) {
c = (i < n) ? cb.charAt(i) : 0;
sb.append(c);
++i;
} else
break;
} else {
sb.append(c);
++i;
}
}
if (c != d)
sb.setLength(0);
}
if (sb.length() > 0) {
if (consume)
cb.position(cb.position() + i);
return new Token(Token.Type.STRING, sb.toString());
} else
return null;
}
Example 12
| Source File: Condition.java From ttt with BSD 2-Clause "Simplified" License | 5 votes |
|
private static Token getString(CharBuffer cb, boolean consume) {
int i = 0; // index from cb[position]
int n = cb.remaining(); // # indices remaining
char d; // string delimiter
StringBuffer sb = new StringBuffer();
// get string delimiter
d = (i < n) ? cb.charAt(i) : 0;
if ((d == '\'') || (d == '\"')) {
++i;
// get delimited content, handling escapes
char c = 0;
while (i < n) {
c = (i < n) ? cb.charAt(i) : 0;
if (c == d) {
++i;
break;
} else if (c == '\\') {
++i;
if (i < n) {
c = (i < n) ? cb.charAt(i) : 0;
sb.append(c);
++i;
} else
break;
} else {
sb.append(c);
++i;
}
}
if (c != d)
sb.setLength(0);
}
if (sb.length() > 0) {
if (consume)
cb.position(cb.position() + i);
return new Token(Token.Type.STRING, sb.toString());
} else
return null;
}
Example 13
| Source File: GerritConnection.java From gerrit-events with MIT License | 5 votes |
|
/**
* Offers lines in buffer to queue.
*
* @param cb a buffer to have received text data.
* @return the line string. null if no EOL, otherwise buffer is compacted.
*/
private String getLine(CharBuffer cb) {
String line = null;
int pos = cb.position();
int limit = cb.limit();
cb.flip();
for (int i = 0; i < cb.length(); i++) {
if (cb.charAt(i) == '\n') {
line = getSubSequence(cb, 0, i).toString();
cb.position(i + 1);
break;
}
}
if (line != null) {
cb.compact();
if (eventBuffer != null) {
eventBuffer.append(line);
String eventString = eventBuffer.toString();
eventBuffer = null;
line = eventString;
}
line.trim();
} else {
if (cb.length() > 0) {
if (cb.length() == cb.capacity()) {
if (eventBuffer == null) {
logger.debug("Encountered big event.");
eventBuffer = new StringBuilder();
}
eventBuffer.append(getSubSequence(cb, 0, pos));
} else {
cb.position(pos);
cb.limit(limit);
}
} else {
cb.clear();
}
}
return line;
}
Example 14
| Source File: StaxExtractingProcessor.java From jesterj with Apache License 2.0 | 5 votes |
|
private void decrementPath(CharBuffer path) {
int lastSlash = 0;
path.rewind();
for (int i = 0; i < path.limit(); i++) {
if (path.charAt(i) == '/') {
lastSlash = i;
}
}
path.limit(lastSlash);
}
Example 15
| Source File: LoadTextUtil.java From consulo with Apache License 2.0 | 4 votes |
|
@Nonnull
private static ConvertResult convertLineSeparatorsToSlashN(@Nonnull CharBuffer buffer) {
int dst = 0;
char prev = ' ';
int crCount = 0;
int lfCount = 0;
int crlfCount = 0;
final int length = buffer.length();
final char[] bufferArray = CharArrayUtil.fromSequenceWithoutCopying(buffer);
for (int src = 0; src < length; src++) {
char c = bufferArray != null ? bufferArray[src] : buffer.charAt(src);
switch (c) {
case '\r':
if (bufferArray != null) bufferArray[dst++] = '\n';
else buffer.put(dst++, '\n');
crCount++;
break;
case '\n':
if (prev == '\r') {
crCount--;
crlfCount++;
}
else {
if (bufferArray != null) bufferArray[dst++] = '\n';
else buffer.put(dst++, '\n');
lfCount++;
}
break;
default:
if (bufferArray != null) bufferArray[dst++] = c;
else buffer.put(dst++, c);
break;
}
prev = c;
}
String detectedLineSeparator = guessLineSeparator(crCount, lfCount, crlfCount);
CharSequence result = buffer.length() == dst ? buffer : buffer.subSequence(0, dst);
return new ConvertResult(result, detectedLineSeparator);
}
Example 16
| Source File: TableBlockParser.java From js-dossier with Apache License 2.0 | 4 votes |
|
private TableRowNode parseRow(String rowStr, InlineParser inlineParser) {
rowStr = rowStr.trim();
if (rowStr.startsWith("|")) {
rowStr = rowStr.substring(1);
}
TableRowNode row = new TableRowNode();
boolean isEscaped = false;
int currentColumn = 0;
CharBuffer data = CharBuffer.wrap(rowStr);
for (int index = 0; data.hasRemaining(); index++) {
if (isEscaped) {
isEscaped = false;
continue;
}
char c = data.charAt(index);
if (c == '\\') {
isEscaped = true;
continue;
}
if (c == '|' || (index + 1) >= data.remaining()) {
int end = c == '|' ? index : index + 1;
String content = data.subSequence(0, end).toString();
data.position(data.position() + end);
int colSpan = 0;
while (data.hasRemaining() && data.charAt(0) == '|') {
colSpan++;
data.position(data.position() + 1);
}
index = -1; // Account for post-forloop increment.
Alignment alignment =
currentColumn < columns.size() ? columns.get(currentColumn) : Alignment.NONE;
currentColumn += colSpan;
TableCellNode cell = new TableCellNode(colSpan, alignment);
inlineParser.parse(content.trim(), cell);
row.appendChild(cell);
}
}
return row;
}
Example 17
| Source File: Condition.java From ttt with BSD 2-Clause "Simplified" License | 4 votes |
|
private static Token getNumeric(CharBuffer cb, boolean consume) {
int i = 0; // index from cb[position]
int j; // helper index
int k; // helper index
int n = cb.remaining(); // # indices remaining
int m = 0; // # digits in mantissa
int e = 0; // # digits in exponent
char c;
StringBuffer sb = new StringBuffer();
// integral component
j = i;
c = (i < n) ? cb.charAt(i) : 0;
if (c == '0') {
sb.append(c);
++i;
} else if ((c >= '1') && (c <= '9')) {
sb.append(c);
++i;
while (i < n) {
c = cb.charAt(i);
if ((c >= '0') && (c <= '9')) {
sb.append(c);
++i;
} else
break;
}
}
m += j - i;
// fractional component
j = i;
c = (i < n) ? cb.charAt(i) : 0;
if (c == '.') {
sb.append(c);
++i;
while (i < n) {
c = cb.charAt(i);
if ((c >= '0') && (c <= '9')) {
sb.append(c);
++i;
} else
break;
}
}
m += j - i;
// ensure mantissa is non-empty
if (m == 0)
return null;
// exponent component
k = sb.length();
c = (i < n) ? cb.charAt(i) : 0;
if ((c == 'e') || (c == 'E')) {
sb.append('E');
++i;
c = (i < n) ? cb.charAt(i) : 0;
if ((c == '+') || (c == '-')) {
sb.append(c);
++i;
}
j = i;
while (i < n) {
c = cb.charAt(i);
if ((c >= '0') && (c <= '9')) {
sb.append(c);
++i;
} else
break;
}
e += j - i;
}
if (e == 0)
sb.setLength(k);
if (sb.length() > 0) {
if (consume)
cb.position(cb.position() + i);
return new Token(Token.Type.NUMERIC, sb.toString());
} else
return null;
}
Example 18
| Source File: Condition.java From ttt with BSD 2-Clause "Simplified" License | 4 votes |
|
private static Token getToken(CharBuffer cb, boolean consume, boolean skipWhitespace) {
Token t;
int p0 = cb.position();
int n = cb.remaining();
char c1 = (n > 0) ? cb.charAt(0) : 0;
char c2 = (n > 1) ? cb.charAt(1) : 0;
// the following clauses are order dependent
if (c1 == 0) {
t = Token.EOS;
} else if (c1 == '(') {
t = Token.OPEN;
} else if (c1 == ')') {
t = Token.CLOSE;
} else if (c1 == ',') {
t = Token.COMMA;
} else if (c1 == '+') {
t = Token.PLUS;
} else if (c1 == '-') {
t = Token.MINUS;
} else if (c1 == '*') {
t = Token.MULTIPLY;
} else if (c1 == '/') {
t = Token.DIVIDE;
} else if (c1 == '%') {
t = Token.MODULO;
} else if (c1 == '=') {
if (c2 == '=') {
t = Token.EQ;
} else
t = null;
} else if (c1 == '!') {
if (c2 == '=') {
t = Token.NEQ;
} else
t = Token.NOT;
} else if (c1 == '<') {
if (c2 == '=')
t = Token.LEQ;
else
t = Token.LT;
} else if (c1 == '>') {
if (c2 == '=')
t = Token.GEQ;
else
t = Token.GT;
} else if (c1 == '|') {
if (c2 == '|')
t = Token.OR;
else
t = null;
} else if (c1 == '&') {
if (c2 == '&')
t = Token.AND;
else
t = null;
} else if (isString(cb)) {
t = getString(cb);
} else if (isNumeric(cb)) {
t = getNumeric(cb);
} else if (isBoolean(cb)) {
t = getBoolean(cb);
} else if (isIdent(cb)) {
t = getIdent(cb);
} else
t = null;
if (consume && (t != null)) {
int p1 = p0;
if (!t.isLiteral())
p1 += t.length();
else
p1 = cb.position();
cb.position(p1);
if (skipWhitespace) {
if (isWhitespace(cb))
getWhitespace(cb);
}
} else
cb.position(p0);
return t;
}
Example 19
| Source File: RestartOptions.java From ttt with BSD 2-Clause "Simplified" License | 4 votes |
|
private static Token getNumeric(CharBuffer cb, boolean consume) {
int i = 0; // index from cb[position]
int j; // helper index
int k; // helper index
int n = cb.remaining(); // # indices remaining
int m = 0; // # digits in mantissa
int e = 0; // # digits in exponent
char c;
StringBuffer sb = new StringBuffer();
// integral component
j = i;
c = (i < n) ? cb.charAt(i) : 0;
if (c == '0') {
sb.append(c);
++i;
} else if ((c >= '1') && (c <= '9')) {
sb.append(c);
++i;
while (i < n) {
c = cb.charAt(i);
if ((c >= '0') && (c <= '9')) {
sb.append(c);
++i;
} else
break;
}
}
m += j - i;
// fractional component
j = i;
c = (i < n) ? cb.charAt(i) : 0;
if (c == '.') {
sb.append(c);
++i;
while (i < n) {
c = cb.charAt(i);
if ((c >= '0') && (c <= '9')) {
sb.append(c);
++i;
} else
break;
}
}
m += j - i;
// ensure mantissa is non-empty
if (m == 0)
return null;
// exponent component
k = sb.length();
c = (i < n) ? cb.charAt(i) : 0;
if ((c == 'e') || (c == 'E')) {
sb.append('E');
++i;
c = (i < n) ? cb.charAt(i) : 0;
if ((c == '+') || (c == '-')) {
sb.append(c);
++i;
}
j = i;
while (i < n) {
c = cb.charAt(i);
if ((c >= '0') && (c <= '9')) {
sb.append(c);
++i;
} else
break;
}
e += j - i;
}
if (e == 0)
sb.setLength(k);
if (sb.length() > 0) {
if (consume)
cb.position(cb.position() + i);
return new Token(Token.Type.NUMERIC, sb.toString());
} else
return null;
}
Example 20
| Source File: RestartOptions.java From ttt with BSD 2-Clause "Simplified" License | 4 votes |
|
private static Token getToken(CharBuffer cb, boolean consume, boolean skipWhitespace) {
Token t;
int p0 = cb.position();
int n = cb.remaining();
char c1 = (n > 0) ? cb.charAt(0) : 0;
// the following clauses are order dependent
if (c1 == 0) {
t = Token.EOS;
} else if (c1 == '{') {
t = Token.OPEN;
} else if (c1 == '}') {
t = Token.CLOSE;
} else if (c1 == ':') {
t = Token.COLON;
} else if (c1 == ';') {
t = Token.SEMICOLON;
} else if (isString(cb)) {
t = getString(cb);
} else if (isNumeric(cb)) {
t = getNumeric(cb);
} else if (isBoolean(cb)) {
t = getBoolean(cb);
} else if (isUndefined(cb)) {
t = getUndefined(cb);
} else if (isIdent(cb)) {
t = getIdent(cb);
} else
t = null;
if (consume && (t != null)) {
int p1 = p0;
if (!t.isLiteral())
p1 += t.length();
else
p1 = cb.position();
cb.position(p1);
if (skipWhitespace) {
if (isWhitespace(cb))
getWhitespace(cb);
}
} else
cb.position(p0);
return t;
}
