/**********************************************************************
-Copyright (c) 2000, 2002 IBM Corp. and others.
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Common Public License v1.0
-which accompanies this distribution, and is available at
-http://www.eclipse.org/legal/cpl-v10.html
+ Copyright (c) 2000, 2002 IBM Corp. and others.
+ All rights reserved. This program and the accompanying materials
+ are made available under the terms of the Common Public License v1.0
+ which accompanies this distribution, and is available at
+ http://www.eclipse.org/legal/cpl-v10.html
-Contributors:
- IBM Corporation - Initial implementation
-**********************************************************************/
+ Contributors:
+ IBM Corporation - Initial implementation
+ **********************************************************************/
package net.sourceforge.phpdt.internal.ui.text;
-
import java.io.IOException;
import java.io.Reader;
import net.sourceforge.phpdt.internal.corext.phpdoc.SingleCharReader;
-
/**
- * Reads the text contents from a reader and computes for each character
- * a potential substitution. The substitution may eat more characters than
- * only the one passed into the computation routine.
+ * Reads the text contents from a reader and computes for each character a
+ * potential substitution. The substitution may eat more characters than only
+ * the one passed into the computation routine.
*/
public abstract class SubstitutionTextReader extends SingleCharReader {
-
- protected static final String LINE_DELIM= System.getProperty("line.separator", "\n"); //$NON-NLS-1$ //$NON-NLS-2$
-
+
+ protected static final String LINE_DELIM = System.getProperty(
+ "line.separator", "\n"); //$NON-NLS-1$ //$NON-NLS-2$
+
private Reader fReader;
+
private boolean fWasWhiteSpace;
+
private int fCharAfterWhiteSpace;
/**
* Tells whether white space characters are skipped.
*/
- private boolean fSkipWhiteSpace= true;
-
+ private boolean fSkipWhiteSpace = true;
+
private boolean fReadFromBuffer;
+
private StringBuffer fBuffer;
- private int fIndex;
+ private int fIndex;
protected SubstitutionTextReader(Reader reader) {
- fReader= reader;
- fBuffer= new StringBuffer();
- fIndex= 0;
- fReadFromBuffer= false;
- fCharAfterWhiteSpace= -1;
- fWasWhiteSpace= true;
+ fReader = reader;
+ fBuffer = new StringBuffer();
+ fIndex = 0;
+ fReadFromBuffer = false;
+ fCharAfterWhiteSpace = -1;
+ fWasWhiteSpace = true;
}
-
+
/**
- * Implement to compute the substitution for the given character and
- * if necessary subsequent characters. Use <code>nextChar</code>
- * to read subsequent characters.
+ * Implement to compute the substitution for the given character and if
+ * necessary subsequent characters. Use <code>nextChar</code> to read
+ * subsequent characters.
*/
protected abstract String computeSubstitution(int c) throws IOException;
-
+
/**
* Returns the internal reader.
*/
protected Reader getReader() {
return fReader;
}
-
+
/**
* Returns the next character.
*/
protected int nextChar() throws IOException {
- fReadFromBuffer= (fBuffer.length() > 0);
+ fReadFromBuffer = (fBuffer.length() > 0);
if (fReadFromBuffer) {
- char ch= fBuffer.charAt(fIndex++);
+ char ch = fBuffer.charAt(fIndex++);
if (fIndex >= fBuffer.length()) {
fBuffer.setLength(0);
- fIndex= 0;
+ fIndex = 0;
}
return ch;
} else {
- int ch= fCharAfterWhiteSpace;
+ int ch = fCharAfterWhiteSpace;
if (ch == -1) {
- ch= fReader.read();
+ ch = fReader.read();
}
- if (fSkipWhiteSpace && Character.isWhitespace((char)ch)) {
+ if (fSkipWhiteSpace && Character.isWhitespace((char) ch)) {
do {
- ch= fReader.read();
- } while (Character.isWhitespace((char)ch));
+ ch = fReader.read();
+ } while (Character.isWhitespace((char) ch));
if (ch != -1) {
- fCharAfterWhiteSpace= ch;
+ fCharAfterWhiteSpace = ch;
return ' ';
}
} else {
- fCharAfterWhiteSpace= -1;
+ fCharAfterWhiteSpace = -1;
}
return ch;
}
}
-
+
/**
* @see Reader#read()
*/
public int read() throws IOException {
int c;
do {
-
- c= nextChar();
+
+ c = nextChar();
while (!fReadFromBuffer) {
- String s= computeSubstitution(c);
+ String s = computeSubstitution(c);
if (s == null)
break;
if (s.length() > 0)
fBuffer.insert(0, s);
- c= nextChar();
+ c = nextChar();
}
-
+
} while (fSkipWhiteSpace && fWasWhiteSpace && (c == ' '));
- fWasWhiteSpace= (c == ' ' || c == '\r' || c == '\n');
+ fWasWhiteSpace = (c == ' ' || c == '\r' || c == '\n');
return c;
}
-
+
/**
* @see Reader#ready()
- */
- public boolean ready() throws IOException {
+ */
+ public boolean ready() throws IOException {
return fReader.ready();
}
-
+
/**
* @see Reader#close()
- */
+ */
public void close() throws IOException {
fReader.close();
}
-
+
/**
* @see Reader#reset()
- */
+ */
public void reset() throws IOException {
fReader.reset();
- fWasWhiteSpace= true;
- fCharAfterWhiteSpace= -1;
+ fWasWhiteSpace = true;
+ fCharAfterWhiteSpace = -1;
fBuffer.setLength(0);
- fIndex= 0;
+ fIndex = 0;
}
protected final void setSkipWhitespace(boolean state) {
- fSkipWhiteSpace= state;
+ fSkipWhiteSpace = state;
}
protected final boolean isSkippingWhitespace() {
git://git.phpeclipse.com / phpeclipse.git / blobdiff