From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libjava/classpath/java/io/StringWriter.java | 212 ++++++++++++++++++++++++++++ 1 file changed, 212 insertions(+) create mode 100644 libjava/classpath/java/io/StringWriter.java (limited to 'libjava/classpath/java/io/StringWriter.java') diff --git a/libjava/classpath/java/io/StringWriter.java b/libjava/classpath/java/io/StringWriter.java new file mode 100644 index 000000000..85500b5cb --- /dev/null +++ b/libjava/classpath/java/io/StringWriter.java @@ -0,0 +1,212 @@ +/* StringWriter.java -- Writes bytes to a StringBuffer + Copyright (C) 1998, 1999, 2000, 2001, 2003, 2005 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package java.io; + +// Wow is this a dumb class. CharArrayWriter can do all this and +// more. I would redirect all calls to one in fact, but the javadocs say +// use a StringBuffer so I will comply. + +/** + * This class writes chars to an internal StringBuffer that + * can then be used to retrieve a String. + * + * @author Aaron M. Renn (arenn@urbanophile.com) + * @author Tom Tromey (tromey@cygnus.com) + */ +public class StringWriter extends Writer +{ + /** + * This is the default size of the buffer if the user doesn't specify it. + * @specnote The JCL Volume 1 says that 16 is the default size. + */ + private static final int DEFAULT_BUFFER_SIZE = 16; + + /** + * This method closes the stream. The contents of the internal buffer + * can still be retrieved, but future writes are not guaranteed to work. + * + * @exception IOException If an error orrurs. + */ + public void close () throws IOException + { + // JCL says this does nothing. This seems to violate the Writer + // contract, in that other methods should still throw an + // IOException after a close. Still, we just follow JCL. + } + + /** + * This method flushes any buffered characters to the underlying output. + * It does nothing in this class. + */ + public void flush () + { + } + + /** + * This method returns the StringBuffer object that this + * object is writing to. Note that this is the actual internal buffer, so + * any operations performed on it will affect this stream object. + * + * @return The StringBuffer object being written to + */ + public StringBuffer getBuffer () + { + return buffer; + } + + /** + * This method initializes a new StringWriter to write to a + * StringBuffer initially sized to a default size of 16 + * chars. + */ + public StringWriter () + { + this (DEFAULT_BUFFER_SIZE); + } + + /** + * This method initializes a new StringWriter to write to a + * StringBuffer with the specified initial size. + * + * @param size The initial size to make the StringBuffer + */ + public StringWriter (int size) + { + super (); + buffer = new StringBuffer (size); + lock = buffer; + } + + /** + * This method returns the contents of the internal StringBuffer + * as a String. + * + * @return A String representing the chars written to + * this stream. + */ + public String toString () + { + return buffer.toString(); + } + + /** + * This method writes a single character to the output, storing it in + * the internal buffer. + * + * @param oneChar The char to write, passed as an int. + */ + public void write (int oneChar) + { + buffer.append((char) (oneChar & 0xFFFF)); + } + + /** + * This method writes len chars from the specified + * array starting at index offset in that array to this + * stream by appending the chars to the end of the internal buffer. + * + * @param chars The array of chars to write + * @param offset The index into the array to start writing from + * @param len The number of chars to write + */ + public void write (char[] chars, int offset, int len) + { + buffer.append(chars, offset, len); + } + + /** + * This method writes the characters in the specified String + * to the stream by appending them to the end of the internal buffer. + * + * @param str The String to write to the stream. + */ + public void write (String str) + { + buffer.append(str); + } + + /** + * This method writes out len characters of the specified + * String to the stream starting at character position + * offset into the stream. This is done by appending the + * characters to the internal buffer. + * + * @param str The String to write characters from + * @param offset The character position to start writing from + * @param len The number of characters to write. + */ + public void write (String str, int offset, int len) + { +// char[] tmpbuf = new char[len]; +// str.getChars(offset, offset+len, tmpbuf, 0); +// buf.append(tmpbuf, 0, tmpbuf.length); + // This implementation assumes that String.substring is more + // efficient than using String.getChars and copying the data + // twice. For libgcj, this is true. For Classpath, it is not. + // FIXME. + buffer.append(str.substring(offset, offset + len)); + } + + /** @since 1.5 */ + public StringWriter append(char c) + { + write(c); + return this; + } + + /** @since 1.5 */ + public StringWriter append(CharSequence cs) + { + write(cs == null ? "null" : cs.toString()); + return this; + } + + /** @since 1.5 */ + public StringWriter append(CharSequence cs, int start, int end) + { + write(cs == null ? "null" : cs.subSequence(start, end).toString()); + return this; + } + + /** + * This is the StringBuffer that we use to store bytes that + * are written. + */ + private StringBuffer buffer; +} -- cgit v1.2.3