summaryrefslogtreecommitdiff
path: root/gnu/classpath
diff options
context:
space:
mode:
authorAndrew John Hughes <gnu_andrew@member.fsf.org>2008-03-01 10:13:25 +0000
committerAndrew John Hughes <gnu_andrew@member.fsf.org>2008-03-01 10:13:25 +0000
commitc33f41e6807c33ca7608091221a384f70644105e (patch)
tree180a90d0813ed8683036fdd0499b493be646ad1d /gnu/classpath
parent3127726cb3b3e24bd8a5a021c0e16ea879dce9af (diff)
downloadclasspath-c33f41e6807c33ca7608091221a384f70644105e.tar.gz
2008-02-30 Andrew John Hughes <gnu_andrew@member.fsf.org>
* gnu/classpath/CPStringBuilder.java: Removed. * gnu/java/awt/font/OpenTypeFontPeer.java, * gnu/java/awt/font/autofit/Edge.java, * gnu/java/awt/font/autofit/LatinBlue.java, * gnu/java/awt/font/autofit/Segment.java, * gnu/java/awt/font/autofit/Width.java, * gnu/java/awt/font/opentype/truetype/Point.java, * gnu/java/awt/java2d/ActiveEdges.java, * gnu/java/awt/peer/GnomeDesktopPeer.java, * gnu/java/awt/peer/KDEDesktopPeer.java, * gnu/java/awt/peer/x/XFontPeer.java: Use CPStringBuilder. * gnu/java/lang/CPStringBuilder.java: Moved from gnu.classpath. * gnu/java/lang/ClassHelper.java, * gnu/java/lang/reflect/GenericSignatureParser.java, * gnu/java/lang/reflect/TypeSignature.java, * gnu/java/net/protocol/http/ChunkedInputStream.java, * gnu/java/net/protocol/http/Cookie.java, * gnu/java/net/protocol/http/HTTPConnection.java, * gnu/java/net/protocol/http/Headers.java, * gnu/java/net/protocol/http/Request.java: Use CPStringBuilder. * java/lang/reflect/Modifier.java: Corrected import to point to correct package. * java/util/Formatter.java: Use CPStringBuilder. * vm/reference/java/lang/reflect/Constructor.java, * vm/reference/java/lang/reflect/Field.java, * vm/reference/java/lang/reflect/Method.java: Corrected import to point to correct package.
Diffstat (limited to 'gnu/classpath')
-rw-r--r--gnu/classpath/CPStringBuilder.java1156
1 files changed, 0 insertions, 1156 deletions
diff --git a/gnu/classpath/CPStringBuilder.java b/gnu/classpath/CPStringBuilder.java
deleted file mode 100644
index 26278b98f..000000000
--- a/gnu/classpath/CPStringBuilder.java
+++ /dev/null
@@ -1,1156 +0,0 @@
-/* ClasspathStringBuffer.java -- Growable strings without locking or copying
- Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2008
- 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 gnu.classpath;
-
-import java.lang.reflect.Constructor;
-import java.lang.reflect.InvocationTargetException;
-
-import java.io.Serializable;
-
-/**
- * This class is based on java.lang.AbstractStringBuffer but
- * without the copying of the string by toString.
- * If you modify this, please consider also modifying that code.
- * This code is not thread-safe; limit its use to internal use within
- * methods.
- */
-public final class CPStringBuilder
- implements Serializable, CharSequence, Appendable
-{
-
- /**
- * Index of next available character (and thus the size of the current
- * string contents). Note that this has permissions set this way so that
- * String can get the value.
- *
- * @serial the number of characters in the buffer
- */
- int count;
-
- /**
- * The buffer. Note that this has permissions set this way so that String
- * can get the value.
- *
- * @serial the buffer
- */
- char[] value;
-
- /**
- * The package-private constructor for String objects without copying.
- */
- private static final Constructor<String> cons;
-
- /**
- * The default capacity of a buffer.
- */
- private static final int DEFAULT_CAPACITY = 16;
-
- static
- {
- try
- {
- cons = String.class.getDeclaredConstructor(char[].class, Integer.TYPE,
- Integer.TYPE, Boolean.TYPE);
- }
- catch (NoSuchMethodException e)
- {
- throw (Error)
- new InternalError("Could not get no-copy String constructor").initCause(e);
- }
- }
-
- /**
- * Create a new CPStringBuilder with default capacity 16.
- */
- public CPStringBuilder()
- {
- this(DEFAULT_CAPACITY);
- }
-
- /**
- * Create an empty <code>StringBuffer</code> with the specified initial
- * capacity.
- *
- * @param capacity the initial capacity
- * @throws NegativeArraySizeException if capacity is negative
- */
- public CPStringBuilder(int capacity)
- {
- value = new char[capacity];
- }
-
- /**
- * Create a new <code>StringBuffer</code> with the characters in the
- * specified <code>String</code>. Initial capacity will be the size of the
- * String plus 16.
- *
- * @param str the <code>String</code> to convert
- * @throws NullPointerException if str is null
- */
- public CPStringBuilder(String str)
- {
- count = str.length();
- value = new char[count + DEFAULT_CAPACITY];
- str.getChars(0, count, value, 0);
- }
-
- /**
- * Create a new <code>StringBuffer</code> with the characters in the
- * specified <code>CharSequence</code>. Initial capacity will be the
- * length of the sequence plus 16; if the sequence reports a length
- * less than or equal to 0, then the initial capacity will be 16.
- *
- * @param seq the initializing <code>CharSequence</code>
- * @throws NullPointerException if str is null
- * @since 1.5
- */
- public CPStringBuilder(CharSequence seq)
- {
- int len = seq.length();
- count = len <= 0 ? 0 : len;
- value = new char[count + DEFAULT_CAPACITY];
- for (int i = 0; i < len; ++i)
- value[i] = seq.charAt(i);
- }
-
- /**
- * Increase the capacity of this <code>StringBuffer</code>. This will
- * ensure that an expensive growing operation will not occur until
- * <code>minimumCapacity</code> is reached. The buffer is grown to the
- * larger of <code>minimumCapacity</code> and
- * <code>capacity() * 2 + 2</code>, if it is not already large enough.
- *
- * @param minimumCapacity the new capacity
- * @see #capacity()
- */
- public void ensureCapacity(int minimumCapacity)
- {
- ensureCapacity_unsynchronized(minimumCapacity);
- }
-
- /**
- * Set the length of this StringBuffer. If the new length is greater than
- * the current length, all the new characters are set to '\0'. If the new
- * length is less than the current length, the first <code>newLength</code>
- * characters of the old array will be preserved, and the remaining
- * characters are truncated.
- *
- * @param newLength the new length
- * @throws IndexOutOfBoundsException if the new length is negative
- * (while unspecified, this is a StringIndexOutOfBoundsException)
- * @see #length()
- */
- public void setLength(int newLength)
- {
- if (newLength < 0)
- throw new StringIndexOutOfBoundsException(newLength);
-
- int valueLength = value.length;
-
- /* Always call ensureCapacity_unsynchronized in order to preserve
- copy-on-write semantics. */
- ensureCapacity_unsynchronized(newLength);
-
- if (newLength < valueLength)
- {
- /* If the StringBuffer's value just grew, then we know that
- value is newly allocated and the region between count and
- newLength is filled with '\0'. */
- count = newLength;
- }
- else
- {
- /* The StringBuffer's value doesn't need to grow. However,
- we should clear out any cruft that may exist. */
- while (count < newLength)
- value[count++] = '\0';
- }
- }
-
- /**
- * Get the character at the specified index.
- *
- * @param index the index of the character to get, starting at 0
- * @return the character at the specified index
- * @throws IndexOutOfBoundsException if index is negative or &gt;= length()
- * (while unspecified, this is a StringIndexOutOfBoundsException)
- */
- public char charAt(int index)
- {
- if (index < 0 || index >= count)
- throw new StringIndexOutOfBoundsException(index);
- return value[index];
- }
-
- /**
- * Get the code point at the specified index. This is like #charAt(int),
- * but if the character is the start of a surrogate pair, and the
- * following character completes the pair, then the corresponding
- * supplementary code point is returned.
- * @param index the index of the codepoint to get, starting at 0
- * @return the codepoint at the specified index
- * @throws IndexOutOfBoundsException if index is negative or &gt;= length()
- * @since 1.5
- */
- public int codePointAt(int index)
- {
- return Character.codePointAt(value, index, count);
- }
-
- /**
- * Get the code point before the specified index. This is like
- * #codePointAt(int), but checks the characters at <code>index-1</code> and
- * <code>index-2</code> to see if they form a supplementary code point.
- * @param index the index just past the codepoint to get, starting at 0
- * @return the codepoint at the specified index
- * @throws IndexOutOfBoundsException if index is negative or &gt;= length()
- * @since 1.5
- */
- public int codePointBefore(int index)
- {
- // Character.codePointBefore() doesn't perform this check. We
- // could use the CharSequence overload, but this is just as easy.
- if (index >= count)
- throw new IndexOutOfBoundsException();
- return Character.codePointBefore(value, index, 1);
- }
-
- /**
- * Get the specified array of characters. <code>srcOffset - srcEnd</code>
- * characters will be copied into the array you pass in.
- *
- * @param srcOffset the index to start copying from (inclusive)
- * @param srcEnd the index to stop copying from (exclusive)
- * @param dst the array to copy into
- * @param dstOffset the index to start copying into
- * @throws NullPointerException if dst is null
- * @throws IndexOutOfBoundsException if any source or target indices are
- * out of range (while unspecified, source problems cause a
- * StringIndexOutOfBoundsException, and dest problems cause an
- * ArrayIndexOutOfBoundsException)
- * @see System#arraycopy(Object, int, Object, int, int)
- */
- public void getChars(int srcOffset, int srcEnd,
- char[] dst, int dstOffset)
- {
- if (srcOffset < 0 || srcEnd > count || srcEnd < srcOffset)
- throw new StringIndexOutOfBoundsException();
- System.arraycopy(value, srcOffset, dst, dstOffset, srcEnd - srcOffset);
- }
-
- /**
- * Set the character at the specified index.
- *
- * @param index the index of the character to set starting at 0
- * @param ch the value to set that character to
- * @throws IndexOutOfBoundsException if index is negative or &gt;= length()
- * (while unspecified, this is a StringIndexOutOfBoundsException)
- */
- public void setCharAt(int index, char ch)
- {
- if (index < 0 || index >= count)
- throw new StringIndexOutOfBoundsException(index);
- // Call ensureCapacity to enforce copy-on-write.
- ensureCapacity_unsynchronized(count);
- value[index] = ch;
- }
-
- /**
- * Append the <code>String</code> value of the argument to this
- * <code>StringBuffer</code>. Uses <code>String.valueOf()</code> to convert
- * to <code>String</code>.
- *
- * @param obj the <code>Object</code> to convert and append
- * @return this <code>StringBuffer</code>
- * @see String#valueOf(Object)
- * @see #append(String)
- */
- public CPStringBuilder append(Object obj)
- {
- return append(String.valueOf(obj));
- }
-
- /**
- * Append the <code>String</code> to this <code>StringBuffer</code>. If
- * str is null, the String "null" is appended.
- *
- * @param str the <code>String</code> to append
- * @return this <code>StringBuffer</code>
- */
- public CPStringBuilder append(String str)
- {
- if (str == null)
- str = "null";
- int len = str.length();
- ensureCapacity_unsynchronized(count + len);
- str.getChars(0, len, value, count);
- count += len;
- return this;
- }
-
- /**
- * Append the <code>StringBuilder</code> value of the argument to this
- * <code>StringBuilder</code>. This behaves the same as
- * <code>append((Object) stringBuffer)</code>, except it is more efficient.
- *
- * @param stringBuffer the <code>StringBuilder</code> to convert and append
- * @return this <code>StringBuilder</code>
- * @see #append(Object)
- */
- public CPStringBuilder append(StringBuffer stringBuffer)
- {
- if (stringBuffer == null)
- return append("null");
- synchronized (stringBuffer)
- {
- int len = stringBuffer.length();
- ensureCapacity(count + len);
- stringBuffer.getChars(0, len, value, count);
- count += len;
- }
- return this;
- }
-
- /**
- * Append the <code>char</code> array to this <code>StringBuffer</code>.
- * This is similar (but more efficient) than
- * <code>append(new String(data))</code>, except in the case of null.
- *
- * @param data the <code>char[]</code> to append
- * @return this <code>StringBuffer</code>
- * @throws NullPointerException if <code>str</code> is <code>null</code>
- * @see #append(char[], int, int)
- */
- public CPStringBuilder append(char[] data)
- {
- return append(data, 0, data.length);
- }
-
- /**
- * Append part of the <code>char</code> array to this
- * <code>StringBuffer</code>. This is similar (but more efficient) than
- * <code>append(new String(data, offset, count))</code>, except in the case
- * of null.
- *
- * @param data the <code>char[]</code> to append
- * @param offset the start location in <code>str</code>
- * @param count the number of characters to get from <code>str</code>
- * @return this <code>StringBuffer</code>
- * @throws NullPointerException if <code>str</code> is <code>null</code>
- * @throws IndexOutOfBoundsException if offset or count is out of range
- * (while unspecified, this is a StringIndexOutOfBoundsException)
- */
- public CPStringBuilder append(char[] data, int offset, int count)
- {
- if (offset < 0 || count < 0 || offset > data.length - count)
- throw new StringIndexOutOfBoundsException();
- ensureCapacity_unsynchronized(this.count + count);
- System.arraycopy(data, offset, value, this.count, count);
- this.count += count;
- return this;
- }
-
- /**
- * Append the <code>String</code> value of the argument to this
- * <code>StringBuffer</code>. Uses <code>String.valueOf()</code> to convert
- * to <code>String</code>.
- *
- * @param bool the <code>boolean</code> to convert and append
- * @return this <code>StringBuffer</code>
- * @see String#valueOf(boolean)
- */
- public CPStringBuilder append(boolean bool)
- {
- return append(bool ? "true" : "false");
- }
-
- /**
- * Append the <code>char</code> to this <code>StringBuffer</code>.
- *
- * @param ch the <code>char</code> to append
- * @return this <code>StringBuffer</code>
- */
- public CPStringBuilder append(char ch)
- {
- ensureCapacity_unsynchronized(count + 1);
- value[count++] = ch;
- return this;
- }
-
- /**
- * Append the characters in the <code>CharSequence</code> to this
- * buffer.
- *
- * @param seq the <code>CharSequence</code> providing the characters
- * @return this <code>StringBuffer</code>
- * @since 1.5
- */
- public CPStringBuilder append(CharSequence seq)
- {
- return append(seq, 0, seq.length());
- }
-
- /**
- * Append some characters from the <code>CharSequence</code> to this
- * buffer. If the argument is null, the four characters "null" are
- * appended.
- *
- * @param seq the <code>CharSequence</code> providing the characters
- * @param start the starting index
- * @param end one past the final index
- * @return this <code>StringBuffer</code>
- * @since 1.5
- */
- public CPStringBuilder append(CharSequence seq, int start, int end)
- {
- if (seq == null)
- return append("null");
- if (end - start > 0)
- {
- ensureCapacity_unsynchronized(count + end - start);
- for (; start < end; ++start)
- value[count++] = seq.charAt(start);
- }
- return this;
- }
-
- /**
- * Append the <code>String</code> value of the argument to this
- * <code>StringBuffer</code>. Uses <code>String.valueOf()</code> to convert
- * to <code>String</code>.
- *
- * @param inum the <code>int</code> to convert and append
- * @return this <code>StringBuffer</code>
- * @see String#valueOf(int)
- */
- // This is native in libgcj, for efficiency.
- public CPStringBuilder append(int inum)
- {
- return append(String.valueOf(inum));
- }
-
- /**
- * Append the <code>String</code> value of the argument to this
- * <code>StringBuffer</code>. Uses <code>String.valueOf()</code> to convert
- * to <code>String</code>.
- *
- * @param lnum the <code>long</code> to convert and append
- * @return this <code>StringBuffer</code>
- * @see String#valueOf(long)
- */
- public CPStringBuilder append(long lnum)
- {
- return append(Long.toString(lnum, 10));
- }
-
- /**
- * Append the <code>String</code> value of the argument to this
- * <code>StringBuffer</code>. Uses <code>String.valueOf()</code> to convert
- * to <code>String</code>.
- *
- * @param fnum the <code>float</code> to convert and append
- * @return this <code>StringBuffer</code>
- * @see String#valueOf(float)
- */
- public CPStringBuilder append(float fnum)
- {
- return append(Float.toString(fnum));
- }
-
- /**
- * Append the <code>String</code> value of the argument to this
- * <code>StringBuffer</code>. Uses <code>String.valueOf()</code> to convert
- * to <code>String</code>.
- *
- * @param dnum the <code>double</code> to convert and append
- * @return this <code>StringBuffer</code>
- * @see String#valueOf(double)
- */
- public CPStringBuilder append(double dnum)
- {
- return append(Double.toString(dnum));
- }
-
- /**
- * Append the code point to this <code>StringBuffer</code>.
- * This is like #append(char), but will append two characters
- * if a supplementary code point is given.
- *
- * @param code the code point to append
- * @return this <code>StringBuffer</code>
- * @see Character#toChars(int, char[], int)
- * @since 1.5
- */
- public CPStringBuilder appendCodePoint(int code)
- {
- int len = Character.charCount(code);
- ensureCapacity_unsynchronized(count + len);
- Character.toChars(code, value, count);
- count += len;
- return this;
- }
-
- /**
- * Delete characters from this <code>StringBuffer</code>.
- * <code>delete(10, 12)</code> will delete 10 and 11, but not 12. It is
- * harmless for end to be larger than length().
- *
- * @param start the first character to delete
- * @param end the index after the last character to delete
- * @return this <code>StringBuffer</code>
- * @throws StringIndexOutOfBoundsException if start or end are out of bounds
- * @since 1.2
- */
- public CPStringBuilder delete(int start, int end)
- {
- if (start < 0 || start > count || start > end)
- throw new StringIndexOutOfBoundsException(start);
- if (end > count)
- end = count;
- ensureCapacity_unsynchronized(count);
- if (count - end != 0)
- System.arraycopy(value, end, value, start, count - end);
- count -= end - start;
- return this;
- }
-
- /**
- * Delete a character from this <code>StringBuffer</code>.
- *
- * @param index the index of the character to delete
- * @return this <code>StringBuffer</code>
- * @throws StringIndexOutOfBoundsException if index is out of bounds
- * @since 1.2
- */
- public CPStringBuilder deleteCharAt(int index)
- {
- return delete(index, index + 1);
- }
-
- /**
- * Replace characters between index <code>start</code> (inclusive) and
- * <code>end</code> (exclusive) with <code>str</code>. If <code>end</code>
- * is larger than the size of this StringBuffer, all characters after
- * <code>start</code> are replaced.
- *
- * @param start the beginning index of characters to delete (inclusive)
- * @param end the ending index of characters to delete (exclusive)
- * @param str the new <code>String</code> to insert
- * @return this <code>StringBuffer</code>
- * @throws StringIndexOutOfBoundsException if start or end are out of bounds
- * @throws NullPointerException if str is null
- * @since 1.2
- */
- public CPStringBuilder replace(int start, int end, String str)
- {
- if (start < 0 || start > count || start > end)
- throw new StringIndexOutOfBoundsException(start);
-
- int len = str.length();
- // Calculate the difference in 'count' after the replace.
- int delta = len - (end > count ? count : end) + start;
- ensureCapacity_unsynchronized(count + delta);
-
- if (delta != 0 && end < count)
- System.arraycopy(value, end, value, end + delta, count - end);
-
- str.getChars(0, len, value, start);
- count += delta;
- return this;
- }
-
- /**
- * Insert a subarray of the <code>char[]</code> argument into this
- * <code>StringBuffer</code>.
- *
- * @param offset the place to insert in this buffer
- * @param str the <code>char[]</code> to insert
- * @param str_offset the index in <code>str</code> to start inserting from
- * @param len the number of characters to insert
- * @return this <code>StringBuffer</code>
- * @throws NullPointerException if <code>str</code> is <code>null</code>
- * @throws StringIndexOutOfBoundsException if any index is out of bounds
- * @since 1.2
- */
- public CPStringBuilder insert(int offset, char[] str, int str_offset, int len)
- {
- if (offset < 0 || offset > count || len < 0
- || str_offset < 0 || str_offset > str.length - len)
- throw new StringIndexOutOfBoundsException();
- ensureCapacity_unsynchronized(count + len);
- System.arraycopy(value, offset, value, offset + len, count - offset);
- System.arraycopy(str, str_offset, value, offset, len);
- count += len;
- return this;
- }
-
- /**
- * Insert the <code>String</code> value of the argument into this
- * <code>StringBuffer</code>. Uses <code>String.valueOf()</code> to convert
- * to <code>String</code>.
- *
- * @param offset the place to insert in this buffer
- * @param obj the <code>Object</code> to convert and insert
- * @return this <code>StringBuffer</code>
- * @exception StringIndexOutOfBoundsException if offset is out of bounds
- * @see String#valueOf(Object)
- */
- public CPStringBuilder insert(int offset, Object obj)
- {
- return insert(offset, obj == null ? "null" : obj.toString());
- }
-
- /**
- * Insert the <code>String</code> argument into this
- * <code>StringBuffer</code>. If str is null, the String "null" is used
- * instead.
- *
- * @param offset the place to insert in this buffer
- * @param str the <code>String</code> to insert
- * @return this <code>StringBuffer</code>
- * @throws StringIndexOutOfBoundsException if offset is out of bounds
- */
- public CPStringBuilder insert(int offset, String str)
- {
- if (offset < 0 || offset > count)
- throw new StringIndexOutOfBoundsException(offset);
- if (str == null)
- str = "null";
- int len = str.length();
- ensureCapacity_unsynchronized(count + len);
- System.arraycopy(value, offset, value, offset + len, count - offset);
- str.getChars(0, len, value, offset);
- count += len;
- return this;
- }
-
- /**
- * Insert the <code>CharSequence</code> argument into this
- * <code>StringBuffer</code>. If the sequence is null, the String
- * "null" is used instead.
- *
- * @param offset the place to insert in this buffer
- * @param sequence the <code>CharSequence</code> to insert
- * @return this <code>StringBuffer</code>
- * @throws IndexOutOfBoundsException if offset is out of bounds
- * @since 1.5
- */
- public CPStringBuilder insert(int offset, CharSequence sequence)
- {
- if (sequence == null)
- sequence = "null";
- return insert(offset, sequence, 0, sequence.length());
- }
-
- /**
- * Insert a subsequence of the <code>CharSequence</code> argument into this
- * <code>StringBuffer</code>. If the sequence is null, the String
- * "null" is used instead.
- *
- * @param offset the place to insert in this buffer
- * @param sequence the <code>CharSequence</code> to insert
- * @param start the starting index of the subsequence
- * @param end one past the ending index of the subsequence
- * @return this <code>StringBuffer</code>
- * @throws IndexOutOfBoundsException if offset, start,
- * or end are out of bounds
- * @since 1.5
- */
- public CPStringBuilder insert(int offset, CharSequence sequence, int start, int end)
- {
- if (sequence == null)
- sequence = "null";
- if (start < 0 || end < 0 || start > end || end > sequence.length())
- throw new IndexOutOfBoundsException();
- int len = end - start;
- ensureCapacity_unsynchronized(count + len);
- System.arraycopy(value, offset, value, offset + len, count - offset);
- for (int i = start; i < end; ++i)
- value[offset++] = sequence.charAt(i);
- count += len;
- return this;
- }
-
- /**
- * Insert the <code>char[]</code> argument into this
- * <code>StringBuffer</code>.
- *
- * @param offset the place to insert in this buffer
- * @param data the <code>char[]</code> to insert
- * @return this <code>StringBuffer</code>
- * @throws NullPointerException if <code>data</code> is <code>null</code>
- * @throws StringIndexOutOfBoundsException if offset is out of bounds
- * @see #insert(int, char[], int, int)
- */
- public CPStringBuilder insert(int offset, char[] data)
- {
- return insert(offset, data, 0, data.length);
- }
-
- /**
- * Insert the <code>String</code> value of the argument into this
- * <code>StringBuffer</code>. Uses <code>String.valueOf()</code> to convert
- * to <code>String</code>.
- *
- * @param offset the place to insert in this buffer
- * @param bool the <code>boolean</code> to convert and insert
- * @return this <code>StringBuffer</code>
- * @throws StringIndexOutOfBoundsException if offset is out of bounds
- * @see String#valueOf(boolean)
- */
- public CPStringBuilder insert(int offset, boolean bool)
- {
- return insert(offset, bool ? "true" : "false");
- }
-
- /**
- * Insert the <code>char</code> argument into this <code>StringBuffer</code>.
- *
- * @param offset the place to insert in this buffer
- * @param ch the <code>char</code> to insert
- * @return this <code>StringBuffer</code>
- * @throws StringIndexOutOfBoundsException if offset is out of bounds
- */
- public CPStringBuilder insert(int offset, char ch)
- {
- if (offset < 0 || offset > count)
- throw new StringIndexOutOfBoundsException(offset);
- ensureCapacity_unsynchronized(count + 1);
- System.arraycopy(value, offset, value, offset + 1, count - offset);
- value[offset] = ch;
- count++;
- return this;
- }
-
- /**
- * Insert the <code>String</code> value of the argument into this
- * <code>StringBuffer</code>. Uses <code>String.valueOf()</code> to convert
- * to <code>String</code>.
- *
- * @param offset the place to insert in this buffer
- * @param inum the <code>int</code> to convert and insert
- * @return this <code>StringBuffer</code>
- * @throws StringIndexOutOfBoundsException if offset is out of bounds
- * @see String#valueOf(int)
- */
- public CPStringBuilder insert(int offset, int inum)
- {
- return insert(offset, String.valueOf(inum));
- }
-
- /**
- * Insert the <code>String</code> value of the argument into this
- * <code>StringBuffer</code>. Uses <code>String.valueOf()</code> to convert
- * to <code>String</code>.
- *
- * @param offset the place to insert in this buffer
- * @param lnum the <code>long</code> to convert and insert
- * @return this <code>StringBuffer</code>
- * @throws StringIndexOutOfBoundsException if offset is out of bounds
- * @see String#valueOf(long)
- */
- public CPStringBuilder insert(int offset, long lnum)
- {
- return insert(offset, Long.toString(lnum, 10));
- }
-
- /**
- * Insert the <code>String</code> value of the argument into this
- * <code>StringBuffer</code>. Uses <code>String.valueOf()</code> to convert
- * to <code>String</code>.
- *
- * @param offset the place to insert in this buffer
- * @param fnum the <code>float</code> to convert and insert
- * @return this <code>StringBuffer</code>
- * @throws StringIndexOutOfBoundsException if offset is out of bounds
- * @see String#valueOf(float)
- */
- public CPStringBuilder insert(int offset, float fnum)
- {
- return insert(offset, Float.toString(fnum));
- }
-
- /**
- * Insert the <code>String</code> value of the argument into this
- * <code>StringBuffer</code>. Uses <code>String.valueOf()</code> to convert
- * to <code>String</code>.
- *
- * @param offset the place to insert in this buffer
- * @param dnum the <code>double</code> to convert and insert
- * @return this <code>StringBuffer</code>
- * @throws StringIndexOutOfBoundsException if offset is out of bounds
- * @see String#valueOf(double)
- */
- public CPStringBuilder insert(int offset, double dnum)
- {
- return insert(offset, Double.toString(dnum));
- }
-
- /**
- * Finds the first instance of a substring in this StringBuilder.
- *
- * @param str String to find
- * @return location (base 0) of the String, or -1 if not found
- * @throws NullPointerException if str is null
- * @see #indexOf(String, int)
- */
- public int indexOf(String str)
- {
- return indexOf(str, 0);
- }
-
- /**
- * Finds the first instance of a String in this StringBuffer, starting at
- * a given index. If starting index is less than 0, the search starts at
- * the beginning of this String. If the starting index is greater than the
- * length of this String, or the substring is not found, -1 is returned.
- *
- * @param str String to find
- * @param fromIndex index to start the search
- * @return location (base 0) of the String, or -1 if not found
- * @throws NullPointerException if str is null
- * @since 1.4
- */
- public int indexOf(String str, int fromIndex)
- {
- if (fromIndex < 0)
- fromIndex = 0;
- int limit = count - str.length();
- for ( ; fromIndex <= limit; fromIndex++)
- if (regionMatches(fromIndex, str))
- return fromIndex;
- return -1;
- }
-
- /**
- * Finds the last instance of a substring in this StringBuffer.
- *
- * @param str String to find
- * @return location (base 0) of the String, or -1 if not found
- * @throws NullPointerException if str is null
- * @see #lastIndexOf(String, int)
- * @since 1.4
- */
- public int lastIndexOf(String str)
- {
- return lastIndexOf(str, count - str.length());
- }
-
- /**
- * Finds the last instance of a String in this StringBuffer, starting at a
- * given index. If starting index is greater than the maximum valid index,
- * then the search begins at the end of this String. If the starting index
- * is less than zero, or the substring is not found, -1 is returned.
- *
- * @param str String to find
- * @param fromIndex index to start the search
- * @return location (base 0) of the String, or -1 if not found
- * @throws NullPointerException if str is null
- * @since 1.4
- */
- public int lastIndexOf(String str, int fromIndex)
- {
- fromIndex = Math.min(fromIndex, count - str.length());
- for ( ; fromIndex >= 0; fromIndex--)
- if (regionMatches(fromIndex, str))
- return fromIndex;
- return -1;
- }
-
- /**
- * Reverse the characters in this StringBuffer. The same sequence of
- * characters exists, but in the reverse index ordering.
- *
- * @return this <code>StringBuffer</code>
- */
- public CPStringBuilder reverse()
- {
- // Call ensureCapacity to enforce copy-on-write.
- ensureCapacity_unsynchronized(count);
- for (int i = count >> 1, j = count - i; --i >= 0; ++j)
- {
- char c = value[i];
- value[i] = value[j];
- value[j] = c;
- }
- return this;
- }
-
- /**
- * This may reduce the amount of memory used by the StringBuffer,
- * by resizing the internal array to remove unused space. However,
- * this method is not required to resize, so this behavior cannot
- * be relied upon.
- * @since 1.5
- */
- public void trimToSize()
- {
- int wouldSave = value.length - count;
- // Some random heuristics: if we save less than 20 characters, who
- // cares.
- if (wouldSave < 20)
- return;
- // If we save more than 200 characters, shrink.
- // If we save more than 1/4 of the buffer, shrink.
- if (wouldSave > 200 || wouldSave * 4 > value.length)
- {
- char[] newValue = new char[count];
- System.arraycopy(value, 0, newValue, 0, count);
- value = newValue;
- }
- }
-
- /**
- * Return the number of code points between two indices in the
- * <code>StringBuffer</code>. An unpaired surrogate counts as a
- * code point for this purpose. Characters outside the indicated
- * range are not examined, even if the range ends in the middle of a
- * surrogate pair.
- *
- * @param start the starting index
- * @param end one past the ending index
- * @return the number of code points
- * @since 1.5
- */
- public int codePointCount(int start, int end)
- {
- if (start < 0 || end >= count || start > end)
- throw new StringIndexOutOfBoundsException();
-
- int count = 0;
- while (start < end)
- {
- char base = value[start];
- if (base < Character.MIN_HIGH_SURROGATE
- || base > Character.MAX_HIGH_SURROGATE
- || start == end
- || start == count
- || value[start + 1] < Character.MIN_LOW_SURROGATE
- || value[start + 1] > Character.MAX_LOW_SURROGATE)
- {
- // Nothing.
- }
- else
- {
- // Surrogate pair.
- ++start;
- }
- ++start;
- ++count;
- }
- return count;
- }
-
- /**
- * Starting at the given index, this counts forward by the indicated
- * number of code points, and then returns the resulting index. An
- * unpaired surrogate counts as a single code point for this
- * purpose.
- *
- * @param start the starting index
- * @param codePoints the number of code points
- * @return the resulting index
- * @since 1.5
- */
- public int offsetByCodePoints(int start, int codePoints)
- {
- while (codePoints > 0)
- {
- char base = value[start];
- if (base < Character.MIN_HIGH_SURROGATE
- || base > Character.MAX_HIGH_SURROGATE
- || start == count
- || value[start + 1] < Character.MIN_LOW_SURROGATE
- || value[start + 1] > Character.MAX_LOW_SURROGATE)
- {
- // Nothing.
- }
- else
- {
- // Surrogate pair.
- ++start;
- }
- ++start;
- --codePoints;
- }
- return start;
- }
-
- /**
- * Increase the capacity of this <code>StringBuilder</code>. This will
- * ensure that an expensive growing operation will not occur until
- * <code>minimumCapacity</code> is reached. The buffer is grown to the
- * larger of <code>minimumCapacity</code> and
- * <code>capacity() * 2 + 2</code>, if it is not already large enough.
- *
- * @param minimumCapacity the new capacity
- * @see #capacity()
- */
- protected void ensureCapacity_unsynchronized(int minimumCapacity)
- {
- if (minimumCapacity > value.length)
- {
- int max = value.length * 2 + 2;
- minimumCapacity = (minimumCapacity < max ? max : minimumCapacity);
- char[] nb = new char[minimumCapacity];
- System.arraycopy(value, 0, nb, 0, count);
- value = nb;
- }
- }
-
- /**
- * Predicate which determines if a substring of this matches another String
- * starting at a specified offset for each String and continuing for a
- * specified length. This is more efficient than creating a String to call
- * indexOf on.
- *
- * @param toffset index to start comparison at for this String
- * @param other non-null String to compare to region of this
- * @return true if regions match, false otherwise
- * @see #indexOf(String, int)
- * @see #lastIndexOf(String, int)
- * @see String#regionMatches(boolean, int, String, int, int)
- */
- private boolean regionMatches(int toffset, String other)
- {
- return new String().regionMatches(toffset, other, 0, other.length());
- }
-
- /**
- * Get the length of the <code>String</code> this <code>StringBuilder</code>
- * would create. Not to be confused with the <em>capacity</em> of the
- * <code>StringBuilder</code>.
- *
- * @return the length of this <code>StringBuilder</code>
- * @see #capacity()
- * @see #setLength(int)
- */
- public int length()
- {
- return count;
- }
-
- /**
- * Creates a substring of this StringBuilder, starting at a specified index
- * and ending at one character before a specified index. This is implemented
- * the same as <code>substring(beginIndex, endIndex)</code>, to satisfy
- * the CharSequence interface.
- *
- * @param beginIndex index to start at (inclusive, base 0)
- * @param endIndex index to end at (exclusive)
- * @return new String which is a substring of this StringBuilder
- * @throws IndexOutOfBoundsException if beginIndex or endIndex is out of
- * bounds
- * @see #substring(int, int)
- */
- public CharSequence subSequence(int beginIndex, int endIndex)
- {
- return substring(beginIndex, endIndex);
- }
-
- /**
- * Creates a substring of this StringBuilder, starting at a specified index
- * and ending at one character before a specified index.
- *
- * @param beginIndex index to start at (inclusive, base 0)
- * @param endIndex index to end at (exclusive)
- * @return new String which is a substring of this StringBuilder
- * @throws StringIndexOutOfBoundsException if beginIndex or endIndex is out
- * of bounds
- */
- public String substring(int beginIndex, int endIndex)
- {
- int len = endIndex - beginIndex;
- if (beginIndex < 0 || endIndex > count || endIndex < beginIndex)
- throw new StringIndexOutOfBoundsException();
- if (len == 0)
- return "";
- try
- {
- return cons.newInstance(value, beginIndex, len, true);
- }
- catch (InstantiationException e)
- {
- throw (Error)
- new InternalError("Could not instantiate no-copy String constructor").initCause(e);
- }
- catch (IllegalAccessException e)
- {
- throw (Error)
- new InternalError("Could not access no-copy String constructor").initCause(e);
- }
- catch (InvocationTargetException e)
- {
- throw (Error)
- new InternalError("Error calling no-copy String constructor").initCause(e);
- }
- }
-
- /**
- * Convert this <code>StringBuilder</code> to a <code>String</code>. The
- * String is composed of the characters currently in this StringBuilder. Note
- * that the result is not a copy, so future modifications to this buffer
- * do affect the String.
- *
- * @return the characters in this StringBuilder
- */
- public String toString()
- {
- try
- {
- return cons.newInstance(value, 0, count, true);
- }
- catch (InstantiationException e)
- {
- throw (Error)
- new InternalError("Could not instantiate no-copy String constructor").initCause(e);
- }
- catch (IllegalAccessException e)
- {
- throw (Error)
- new InternalError("Could not access no-copy String constructor").initCause(e);
- }
- catch (InvocationTargetException e)
- {
- throw (Error)
- new InternalError("Error calling no-copy String constructor").initCause(e);
- }
- }
-
-}