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Modified toString() so that it can be optionally provided with opening and

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closing box characters (the parentheses in (0, 1, 2, 3)).


git-svn-id: https://samskivert.googlecode.com/svn/trunk@478 6335cc39-0255-0410-8fd6-9bcaacd3b74c
This commit is contained in:
mdb
2001-11-29 06:32:37 +00:00
parent 0c3f04d9a5
commit 7e5b7b16d1
1 changed files with 52 additions and 19 deletions
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projects/samskivert/src/java/com/samskivert/util/StringUtil.java
+52 -19
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@@ -1,5 +1,5 @@
//
// $Id: StringUtil.java,v 1.13 2001/11/18 04:01:08 mdb Exp $
// $Id: StringUtil.java,v 1.14 2001/11/29 06:32:37 mdb Exp $
//
// samskivert library - useful routines for java programs
// Copyright (C) 2001 Michael Bayne
@@ -94,6 +94,21 @@ public class StringUtil
return buf.toString();
}
/**
* Like the single argument {@link #toString(Object)} with the
* additional function of specifying the characters that are used to
* box in list and array types (for example, if "[" and "]" were
* supplied, an int array might be formatted like so: <code>[1, 3,
* 5]</code>).
*/
public static String toString (
Object val, String openBox, String closeBox)
{
StringBuffer buf = new StringBuffer();
toString(buf, val, openBox, closeBox);
return buf.toString();
}
/**
* Converts the supplied value to a string and appends it to the
* supplied string buffer. See the single argument version for more
@@ -103,9 +118,27 @@ public class StringUtil
* @param val the value from which to generate the string.
*/
public static void toString (StringBuffer buf, Object val)
{
toString(buf, val, "(", ")");
}
/**
* Converts the supplied value to a string and appends it to the
* supplied string buffer. The specified boxing characters are used to
* enclose list and array types (for example, if "[" and "]" were
* supplied, an int array might be formatted like so: <code>[1, 3,
* 5]</code>).
*
* @param buf the string buffer to which we will append the string.
* @param val the value from which to generate the string.
* @param openBox the opening box character.
* @param closeBox the closing box character.
*/
public static void toString (StringBuffer buf, Object val,
String openBox, String closeBox)
{
if (val instanceof int[]) {
buf.append("(");
buf.append(openBox);
int[] v = (int[])val;
for (int i = 0; i < v.length; i++) {
if (i > 0) {
@@ -113,10 +146,10 @@ public class StringUtil
}
buf.append(v[i]);
}
buf.append(")");
buf.append(closeBox);
} else if (val instanceof long[]) {
buf.append("(");
buf.append(openBox);
long[] v = (long[])val;
for (int i = 0; i < v.length; i++) {
if (i > 0) {
@@ -124,10 +157,10 @@ public class StringUtil
}
buf.append(v[i]);
}
buf.append(")");
buf.append(closeBox);
} else if (val instanceof float[]) {
buf.append("(");
buf.append(openBox);
float[] v = (float[])val;
for (int i = 0; i < v.length; i++) {
if (i > 0) {
@@ -135,10 +168,10 @@ public class StringUtil
}
buf.append(v[i]);
}
buf.append(")");
buf.append(closeBox);
} else if (val instanceof double[]) {
buf.append("(");
buf.append(openBox);
double[] v = (double[])val;
for (int i = 0; i < v.length; i++) {
if (i > 0) {
@@ -146,10 +179,10 @@ public class StringUtil
}
buf.append(v[i]);
}
buf.append(")");
buf.append(closeBox);
} else if (val instanceof Object[]) {
buf.append("(");
buf.append(openBox);
Object[] v = (Object[])val;
for (int i = 0; i < v.length; i++) {
if (i > 0) {
@@ -157,10 +190,10 @@ public class StringUtil
}
buf.append(toString(v[i]));
}
buf.append(")");
buf.append(closeBox);
} else if (val instanceof Enumeration) {
buf.append("(");
buf.append(openBox);
Enumeration enum = (Enumeration)val;
for (int i = 0; enum.hasMoreElements(); i++) {
if (i > 0) {
@@ -168,10 +201,10 @@ public class StringUtil
}
buf.append(toString(enum.nextElement()));
}
buf.append(")");
buf.append(closeBox);
} else if (val instanceof Iterator) {
buf.append("(");
buf.append(openBox);
Iterator iter = (Iterator)val;
for (int i = 0; iter.hasNext(); i++) {
if (i > 0) {
@@ -179,17 +212,17 @@ public class StringUtil
}
buf.append(toString(iter.next()));
}
buf.append(")");
buf.append(closeBox);
} else if (val instanceof Point2D) {
Point2D p = (Point2D)val;
buf.append("[+").append(p.getX());
buf.append("+").append(p.getY()).append("]");
buf.append(openBox).append("+").append(p.getX());
buf.append("+").append(p.getY()).append(closeBox);
} else if (val instanceof Dimension2D) {
Dimension2D d = (Dimension2D)val;
buf.append("[").append(d.getWidth()).append("x");
buf.append(d.getHeight()).append("]");
buf.append(openBox).append(d.getWidth()).append("x");
buf.append(d.getHeight()).append(closeBox);
} else {
buf.append(val);