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* java/util/Properties.java: Merged with Classpath version.
From-SVN: r36775
This commit is contained in:
Tom Tromey
Tom Tromey
parent
20d431c931
commit
43f8e39002
@ -1,3 +1,7 @@
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2000-10-07 Tom Tromey <tromey@cygnus.com>
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* java/util/Properties.java: Merged with Classpath version.
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2000-10-05 Tom Tromey <tromey@cygnus.com>
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* java/lang/reflect/natField.cc (BooleanClass): Don't define.
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@ -1,393 +1,488 @@
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// Properties - Property list representation.
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/* java.util.Properties
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Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
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/* Copyright (C) 1998, 1999, 2000 Free Software Foundation
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This file is part of GNU Classpath.
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This file is part of libgcj.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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||||
General Public License for more details.
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||||
|
||||
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
|
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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As a special exception, if you link this library with other files to
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produce an executable, this library does not by itself cause the
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resulting executable to be covered by the GNU General Public License.
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||||
This exception does not however invalidate any other reasons why the
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executable file might be covered by the GNU General Public License. */
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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package java.util;
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import java.io.BufferedWriter;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.io.OutputStreamWriter;
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import java.io.PrintStream;
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import java.io.PrintWriter;
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import java.io.PushbackReader;
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import java.io.*;
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/**
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* @author Tom Tromey <tromey@cygnus.com>
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* @date October 26, 1998.
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*/
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* An example of a properties file for the german language is given
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* here. This extends the example given in ListResourceBundle.
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* Create a file MyResource_de.properties with the following contents
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* and put it in the CLASSPATH. (The character
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* <code>\</code><code>u00e4</code> is the german ä)
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*
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* <pre>
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* s1=3
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* s2=MeineDisk
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* s3=3. M\<code></code>u00e4rz 96
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* s4=Die Diskette ''{1}'' enth\<code></code>u00e4lt {0} in {2}.
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* s5=0
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* s6=keine Dateien
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* s7=1
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* s8=eine Datei
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* s9=2
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* s10={0,number} Dateien
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* s11=Das Formatieren schlug fehl mit folgender Exception: {0}
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* s12=FEHLER
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* s13=Ergebnis
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* s14=Dialog
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* s15=Auswahlkriterium
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* s16=1,3
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* </pre>
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*
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* Although this is a sub class of a hash table, you should never
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* insert anything other than strings to this property, or several
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* methods, that need string keys and values, will fail. To ensure
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* this, you should use the <code>get/setProperty</code> method instead
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* of <code>get/put</code>.
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*
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* @see PropertyResourceBundle
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* @author Jochen Hoenicke */
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public class Properties extends Hashtable {
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/**
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* The property list that contains default values for any keys not
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* in this property list.
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*/
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protected Properties defaults;
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/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
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* Status: Complete to JDK 1.2.
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*/
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private static final long serialVersionUID = 4112578634029874840L;
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public class Properties extends Hashtable
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{
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protected Properties defaults;
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private static final long serialVersionUID = 4112578634029874840L;
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public String getProperty (String propName)
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{
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return getProperty (propName, null);
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/**
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* Creates a new empty property list.
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*/
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public Properties() {
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this.defaults = null;
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}
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/**
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* Create a new empty property list with the specified default values.
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* @param defaults a Properties object containing the default values.
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*/
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public Properties(Properties defaults) {
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this.defaults = defaults;
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}
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public String getProperty (String propName, String defVal)
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{
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String r = (String) get (propName);
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if (r == null)
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{
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if (defaults != null)
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r = defaults.getProperty(propName, defVal);
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else
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r = defVal;
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}
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return r;
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/**
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* Reads a property list from an input stream. The stream should
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* have the following format: <br>
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*
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* An empty line or a line starting with <code>#</code> or
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* <code>!</code> is ignored. An backslash (<code>\</code>) at the
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* end of the line makes the line continueing on the next line
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* (but make sure there is no whitespace after the backslash).
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* Otherwise, each line describes a key/value pair. <br>
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*
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* The chars up to the first whitespace, = or : are the key. You
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* can include this caracters in the key, if you precede them with
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* a backslash (<code>\</code>). The key is followed by optional
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* whitespaces, optionally one <code>=</code> or <code>:</code>,
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* and optionally some more whitespaces. The rest of the line is
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* the resource belonging to the key. <br>
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*
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* Escape sequences <code>\t, \n, \r, \\, \", \', \!, \#, \ </code>(a
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* space), and unicode characters with the
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* <code>\</code><code>u</code>xxxx notation are detected, and
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* converted to the corresponding single character. <br>
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*
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* <pre>
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* # This is a comment
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* key = value
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* k\:5 \ a string starting with space and ending with newline\n
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* # This is a multiline specification; note that the value contains
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* # no white space.
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* weekdays: Sunday,Monday,Tuesday,Wednesday,\
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* Thursday,Friday,Saturday
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* # The safest way to include a space at the end of a value:
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* label = Name:\<code></code>u0020
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* </pre>
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*
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* @param in the input stream
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* @exception IOException if an error occured when reading
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* from the input. */
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public void load(InputStream inStream) throws IOException {
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BufferedReader reader =
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new BufferedReader(new InputStreamReader(inStream));
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String line;
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while ((line = reader.readLine()) != null) {
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char c = 0;
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int pos = 0;
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while (pos < line.length()
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&& Character.isWhitespace(c = line.charAt(pos)))
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pos++;
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// If line is empty or begins with a comment character,
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// skip this line.
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if (pos == line.length() || c == '#' || c == '!')
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continue;
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// The characaters up to the next Whitespace, ':', or '='
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// describe the key. But look for escape sequences.
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StringBuffer key = new StringBuffer();
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while (pos < line.length()
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&& !Character.isWhitespace(c = line.charAt(pos++))
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&& c != '=' && c != ':') {
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if (c == '\\') {
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if (pos == line.length()) {
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// The line continues on the next line.
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line = reader.readLine();
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pos = 0;
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while (pos < line.length()
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&& Character.isWhitespace(c = line.charAt(pos)))
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pos++;
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} else {
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c = line.charAt(pos++);
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switch (c) {
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case 'n':
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key.append('\n');
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break;
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case 't':
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key.append('\t');
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break;
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case 'r':
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key.append('\r');
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break;
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case 'u':
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if (pos+4 <= line.length()) {
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char uni = (char) Integer.parseInt
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(line.substring(pos, pos+4), 16);
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key.append(uni);
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} // else throw exception?
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break;
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default:
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key.append(c);
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break;
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}
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}
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} else
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key.append(c);
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}
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boolean isDelim = (c == ':' || c == '=');
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while (pos < line.length()
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&& Character.isWhitespace(c = line.charAt(pos)))
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pos++;
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if (!isDelim && (c == ':' || c == '=')) {
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pos++;
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while (pos < line.length()
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&& Character.isWhitespace(c = line.charAt(pos)))
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pos++;
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}
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StringBuffer element = new StringBuffer(line.length()-pos);
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while (pos < line.length()) {
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c = line.charAt(pos++);
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if (c == '\\') {
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if (pos == line.length()) {
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// The line continues on the next line.
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line = reader.readLine();
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pos = 0;
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while (pos < line.length()
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&& Character.isWhitespace(c = line.charAt(pos)))
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pos++;
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element.ensureCapacity(line.length()-pos+element.length());
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} else {
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c = line.charAt(pos++);
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switch (c) {
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case 'n':
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element.append('\n');
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break;
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case 't':
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element.append('\t');
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break;
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case 'r':
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element.append('\r');
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break;
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case 'u':
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if (pos+4 <= line.length()) {
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char uni = (char) Integer.parseInt
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(line.substring(pos, pos+4), 16);
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element.append(uni);
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} // else throw exception?
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break;
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default:
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element.append(c);
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break;
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}
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}
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} else
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element.append(c);
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}
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put(key.toString(), element.toString());
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}
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}
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public Object setProperty (String key, String value)
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{
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return put (key, value);
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}
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public void list (PrintStream out)
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{
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Enumeration e = propertyNames ();
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while (e.hasMoreElements())
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{
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String key = (String) e.nextElement();
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String value = getProperty(key);
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if (value != null)
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||||
{
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if (value.length() > 40)
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{
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// JDK compatibility.
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value = value.substring(0, 37) + "...";
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}
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out.print(key);
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out.print("=");
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out.println(value);
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}
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}
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/**
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* Calls <code>store(OutputStream out, String header)</code> and
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* ignores the IOException that may be thrown.
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* @deprecated use store instead.
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* @exception ClassCastException if this property contains any key or
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* value that isn't a string.
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*/
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public void save(OutputStream out, String header) {
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try {
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store(out,header);
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} catch (IOException ex) {
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}
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}
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/**
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* Writes the key/value pairs to the given output stream. <br>
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*
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* If header is not null, this method writes a comment containing
|
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* the header as first line to the stream. The next line (or first
|
||||
* line if header is null) contains a comment with the current date.
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* Afterwards the key/value pairs are written to the stream in the
|
||||
* following format. <br>
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*
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||||
* Each line has the form <code>key = value</code>. Newlines,
|
||||
* Returns and tabs are written as <code>\n,\t,\r</code> resp.
|
||||
* The characters <code>\, !, #, =</code> and <code>:</code> are
|
||||
* preceeded by a backslash. Spaces are preceded with a backslash,
|
||||
* if and only if they are at the beginning of the key. Characters
|
||||
* that are not in the ascii range 33 to 127 are written in the
|
||||
* <code>\</code><code>u</code>xxxx Form.
|
||||
*
|
||||
* @param out the output stream
|
||||
* @param header the header written in the first line, may be null.
|
||||
* @exception ClassCastException if this property contains any key or
|
||||
* value that isn't a string.
|
||||
*/
|
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public void store(OutputStream out, String header) throws IOException {
|
||||
PrintWriter writer = new PrintWriter(out);
|
||||
if (header != null)
|
||||
writer.println("#"+header);
|
||||
writer.println("#"+new Date().toString());
|
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list(writer);
|
||||
writer.flush();
|
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}
|
||||
|
||||
/**
|
||||
* Adds the given key/value pair to this properties. This calls
|
||||
* the hashtable method put.
|
||||
* @param key the key for this property
|
||||
* @param value the value for this property
|
||||
* @return The old value for the given key.
|
||||
* @since JDK1.2 */
|
||||
public Object setProperty(String key, String value) {
|
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return put(key,value);
|
||||
}
|
||||
|
||||
public void list (PrintWriter writer)
|
||||
{
|
||||
Enumeration e = propertyNames ();
|
||||
while (e.hasMoreElements())
|
||||
{
|
||||
String key = (String) e.nextElement();
|
||||
String value = getProperty(key);
|
||||
if (value != null)
|
||||
{
|
||||
if (value.length() > 40)
|
||||
{
|
||||
// JDK compatibility.
|
||||
value = value.substring(0, 37) + "...";
|
||||
}
|
||||
writer.print(key);
|
||||
writer.print("=");
|
||||
writer.println(value);
|
||||
}
|
||||
}
|
||||
/**
|
||||
* Gets the property with the specified key in this property list.
|
||||
* If the key is not found, the default property list is searched.
|
||||
* If the property is not found in default or the default of
|
||||
* default, null is returned.
|
||||
* @param key The key for this property.
|
||||
* @param defaulValue A default value
|
||||
* @return The value for the given key, or null if not found.
|
||||
* @exception ClassCastException if this property contains any key or
|
||||
* value that isn't a string.
|
||||
*/
|
||||
public String getProperty(String key) {
|
||||
return getProperty(key, null);
|
||||
}
|
||||
|
||||
private final boolean skip_ws (PushbackReader reader) throws IOException
|
||||
{
|
||||
while (true)
|
||||
{
|
||||
int c = reader.read();
|
||||
if (c == -1)
|
||||
return false;
|
||||
// FIXME: we use our own definition of whitespace.
|
||||
// Character.isWhitespace includes newlines, which we don't
|
||||
// want. Character.isSpaceChar doesn't include \t.
|
||||
if (c != ' ' && c != '\t')
|
||||
{
|
||||
reader.unread(c);
|
||||
return true;
|
||||
}
|
||||
}
|
||||
/**
|
||||
* Gets the property with the specified key in this property list. If
|
||||
* the key is not found, the default property list is searched. If the
|
||||
* property is not found in default or the default of default, the
|
||||
* specified defaultValue is returned.
|
||||
* @param key The key for this property.
|
||||
* @param defaulValue A default value
|
||||
* @return The value for the given key.
|
||||
* @exception ClassCastException if this property contains any key or
|
||||
* value that isn't a string.
|
||||
*/
|
||||
public String getProperty(String key, String defaultValue) {
|
||||
Properties prop = this;
|
||||
// Eliminate tail recursion.
|
||||
do {
|
||||
String value = (String) prop.get(key);
|
||||
if (value != null)
|
||||
return value;
|
||||
prop = prop.defaults;
|
||||
} while (prop != null);
|
||||
return defaultValue;
|
||||
}
|
||||
|
||||
// Note: this method needs to be rewritten for JDK 1.2.
|
||||
// We rather arbitrarily decide that an EOF in the middle of a line
|
||||
// means that the whole line should be ignored. The spec doesn't
|
||||
// specifically address this, but this interpretation seems valid.
|
||||
public synchronized void load (InputStream in) throws IOException
|
||||
{
|
||||
PushbackReader reader = new PushbackReader (new InputStreamReader (in));
|
||||
private final void addHashEntries (Hashtable base) {
|
||||
if (defaults != null)
|
||||
defaults.addHashEntries(base);
|
||||
Enumeration keys = keys ();
|
||||
while (keys.hasMoreElements())
|
||||
base.put(keys.nextElement(), base);
|
||||
}
|
||||
|
||||
StringBuffer key = new StringBuffer ();
|
||||
StringBuffer value = new StringBuffer ();
|
||||
/**
|
||||
* Returns an enumeration of all keys in this property list, including
|
||||
* the keys in the default property list.
|
||||
*/
|
||||
public Enumeration propertyNames () {
|
||||
// We make a new Hashtable that holds all the keys. Then we
|
||||
// return an enumeration for this hash. We do this because we
|
||||
// don't want modifications to be reflected in the enumeration
|
||||
// (per JCL), and because there doesn't seem to be a
|
||||
// particularly better way to ensure that duplicates are
|
||||
// ignored.
|
||||
Hashtable t = new Hashtable ();
|
||||
addHashEntries (t);
|
||||
return t.keys();
|
||||
}
|
||||
|
||||
nextLine:
|
||||
while (true)
|
||||
{
|
||||
key.setLength(0);
|
||||
value.setLength(0);
|
||||
|
||||
// Skip leading whitespace.
|
||||
if (! skip_ws (reader))
|
||||
return;
|
||||
|
||||
// Read key until key terminator.
|
||||
boolean first_char = true;
|
||||
int c;
|
||||
while (true)
|
||||
{
|
||||
c = reader.read();
|
||||
if (c == -1)
|
||||
return;
|
||||
if (c == '\\')
|
||||
{
|
||||
first_char = false;
|
||||
c = reader.read();
|
||||
if (c == -1)
|
||||
return;
|
||||
}
|
||||
|
||||
// If we found a comment, just read to end of line and
|
||||
// then keep going.
|
||||
if (first_char == true && (c == '#' || c == '!'))
|
||||
{
|
||||
while (c != -1 && c != '\r' && c != '\n')
|
||||
c = reader.read();
|
||||
if (c == -1)
|
||||
return;
|
||||
continue nextLine;
|
||||
}
|
||||
|
||||
if (c == '\r' || c == '\n')
|
||||
{
|
||||
if (first_char)
|
||||
continue nextLine;
|
||||
reader.unread(c);
|
||||
break;
|
||||
}
|
||||
// FIXME: again, our own definition of whitespace.
|
||||
if (c == ' ' || c == '\t' || c == ':' || c == '=')
|
||||
/**
|
||||
* Formats a key/value pair for output in a properties file.
|
||||
* See store for a description of the format.
|
||||
* @param key the key.
|
||||
* @param value the value.
|
||||
* @see #store
|
||||
*/
|
||||
private String formatForOutput(String key, String value) {
|
||||
// This is a simple approximation of the expected line size.
|
||||
StringBuffer result = new StringBuffer(key.length()+value.length()+16);
|
||||
boolean head = true;
|
||||
for (int i=0; i< key.length(); i++) {
|
||||
char c = key.charAt(i);
|
||||
switch (c) {
|
||||
case '\n':
|
||||
result.append("\\n");
|
||||
break;
|
||||
case '\r':
|
||||
result.append("\\r");
|
||||
break;
|
||||
case '\t':
|
||||
result.append("\\t");
|
||||
break;
|
||||
case '\\':
|
||||
result.append("\\\\");
|
||||
break;
|
||||
case '!':
|
||||
result.append("\\!");
|
||||
break;
|
||||
case '#':
|
||||
result.append("\\#");
|
||||
break;
|
||||
case '=':
|
||||
result.append("\\=");
|
||||
break;
|
||||
case ':':
|
||||
result.append("\\:");
|
||||
break;
|
||||
case ' ':
|
||||
result.append("\\ ");
|
||||
break;
|
||||
|
||||
first_char = false;
|
||||
key.append((char) c);
|
||||
}
|
||||
|
||||
// Found end of key. Skip whitespace. If the terminator
|
||||
// was whitespace, also skip a single instance of a "real"
|
||||
// terminator, and then more whitespace.
|
||||
if (! skip_ws (reader))
|
||||
return;
|
||||
if (c != ':' && c != '=')
|
||||
{
|
||||
c = reader.read();
|
||||
if (c == -1)
|
||||
return;
|
||||
if (c == ':' || c == '=')
|
||||
{
|
||||
// Skip more whitespace.
|
||||
if (! skip_ws (reader))
|
||||
return;
|
||||
}
|
||||
else
|
||||
reader.unread(c);
|
||||
}
|
||||
|
||||
// Now read the value.
|
||||
while (true)
|
||||
{
|
||||
c = reader.read();
|
||||
if (c == -1)
|
||||
return;
|
||||
if (c == '\r' || c == '\n')
|
||||
default:
|
||||
if (c < 32 || c > '~') {
|
||||
String hex = Integer.toHexString(c);
|
||||
result.append("\\u0000".substring(0, 6-hex.length()));
|
||||
result.append(hex);
|
||||
} else
|
||||
result.append(c);
|
||||
}
|
||||
if (c != 32)
|
||||
head = false;
|
||||
}
|
||||
result.append('=');
|
||||
head=true;
|
||||
for (int i=0; i< value.length(); i++) {
|
||||
char c = value.charAt(i);
|
||||
switch (c) {
|
||||
case '\n':
|
||||
result.append("\\n");
|
||||
break;
|
||||
case '\r':
|
||||
result.append("\\r");
|
||||
break;
|
||||
case '\t':
|
||||
result.append("\\t");
|
||||
break;
|
||||
case '\\':
|
||||
result.append("\\\\");
|
||||
break;
|
||||
case '!':
|
||||
result.append("\\!");
|
||||
break;
|
||||
case '#':
|
||||
result.append("\\#");
|
||||
break;
|
||||
case ' ':
|
||||
result.append(head ? "\\ ": " ");
|
||||
break;
|
||||
if (c == '\\')
|
||||
{
|
||||
c = reader.read();
|
||||
switch (c)
|
||||
{
|
||||
case -1:
|
||||
return;
|
||||
case 't':
|
||||
c = '\t';
|
||||
break;
|
||||
case 'r':
|
||||
c = '\r';
|
||||
break;
|
||||
case 'n':
|
||||
c = '\n';
|
||||
break;
|
||||
case 'u':
|
||||
c = 0;
|
||||
for (int i = 0; i < 4; ++i)
|
||||
{
|
||||
int x = reader.read();
|
||||
if (x == -1)
|
||||
return;
|
||||
int d = Character.digit((char) x, 16);
|
||||
// We follow JDK here: invalid characters
|
||||
// are treated as terminators.
|
||||
if (d == -1)
|
||||
{
|
||||
value.append((char) c);
|
||||
c = x;
|
||||
break;
|
||||
}
|
||||
c <<= 4;
|
||||
c |= d;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
// Nothing.
|
||||
}
|
||||
}
|
||||
value.append((char) c);
|
||||
}
|
||||
|
||||
put (key.toString(), value.toString());
|
||||
}
|
||||
default:
|
||||
if (c < 32 || c > '~') {
|
||||
String hex = Integer.toHexString(c);
|
||||
result.append("\\u0000".substring(0, 6-hex.length()));
|
||||
result.append(hex);
|
||||
} else
|
||||
result.append(c);
|
||||
}
|
||||
if (c != 32)
|
||||
head = false;
|
||||
}
|
||||
return result.toString();
|
||||
}
|
||||
|
||||
public Properties ()
|
||||
{
|
||||
defaults = null;
|
||||
/**
|
||||
* Writes the key/value pairs to the given print stream. They are
|
||||
* written in the way, described in the method store.
|
||||
* @param out the stream, where the key/value pairs are written to.
|
||||
* @exception ClassCastException if this property contains any key or
|
||||
* value that isn't a string.
|
||||
* @see #store
|
||||
*/
|
||||
public void list(PrintStream out) {
|
||||
Enumeration keys = keys();
|
||||
Enumeration elts = elements();
|
||||
while (keys.hasMoreElements()) {
|
||||
String key = (String) keys.nextElement();
|
||||
String elt = (String) elts.nextElement();
|
||||
String output = formatForOutput(key,elt);
|
||||
out.println(output);
|
||||
}
|
||||
}
|
||||
|
||||
public Properties (Properties defs)
|
||||
{
|
||||
defaults = defs;
|
||||
/**
|
||||
* Writes the key/value pairs to the given print writer. They are
|
||||
* written in the way, described in the method store.
|
||||
* @param out the writer, where the key/value pairs are written to.
|
||||
* @exception ClassCastException if this property contains any key or
|
||||
* value that isn't a string.
|
||||
* @see #store
|
||||
* @see #list(java.io.PrintStream)
|
||||
* @since JDK1.1
|
||||
*/
|
||||
public void list(PrintWriter out) {
|
||||
Enumeration keys = keys();
|
||||
Enumeration elts = elements();
|
||||
while (keys.hasMoreElements()) {
|
||||
String key = (String) keys.nextElement();
|
||||
String elt = (String) elts.nextElement();
|
||||
String output = formatForOutput(key,elt);
|
||||
out.println(output);
|
||||
}
|
||||
}
|
||||
|
||||
private final void addHashEntries (Hashtable base)
|
||||
{
|
||||
if (defaults != null)
|
||||
defaults.addHashEntries(base);
|
||||
Enumeration keys = keys ();
|
||||
while (keys.hasMoreElements())
|
||||
base.put(keys.nextElement(), base);
|
||||
}
|
||||
|
||||
public Enumeration propertyNames ()
|
||||
{
|
||||
// We make a new Hashtable that holds all the keys. Then we
|
||||
// return an enumeration for this hash. We do this because we
|
||||
// don't want modifications to be reflected in the enumeration
|
||||
// (per JCL), and because there doesn't seem to be a
|
||||
// particularly better way to ensure that duplicates are
|
||||
// ignored.
|
||||
Hashtable t = new Hashtable ();
|
||||
addHashEntries (t);
|
||||
return t.keys();
|
||||
}
|
||||
|
||||
public synchronized void save (OutputStream out, String comment)
|
||||
{
|
||||
try
|
||||
{
|
||||
store (out, comment);
|
||||
}
|
||||
catch (IOException _)
|
||||
{
|
||||
}
|
||||
}
|
||||
|
||||
public synchronized void store (OutputStream out, String comment)
|
||||
throws IOException
|
||||
{
|
||||
// Use a buffer because writing a single string through
|
||||
// OutputStreamWriter is fairly expensive.
|
||||
BufferedWriter output
|
||||
= new BufferedWriter (new OutputStreamWriter (out));
|
||||
String newline = System.getProperty("line.separator");
|
||||
|
||||
if (comment != null)
|
||||
{
|
||||
// We just lose if COMMENT contains a newline. This is
|
||||
// what JDK 1.1 does.
|
||||
output.write("#");
|
||||
output.write(comment);
|
||||
output.write(newline);
|
||||
}
|
||||
output.write("# ");
|
||||
output.write(new Date().toString());
|
||||
output.write(newline);
|
||||
|
||||
Enumeration keys = keys ();
|
||||
while (keys.hasMoreElements())
|
||||
{
|
||||
String key = (String) keys.nextElement();
|
||||
String value = (String) get (key);
|
||||
|
||||
// FIXME: JCL says that the key can contain many Unicode
|
||||
// characters. But it also doesn't say we should encode
|
||||
// it in any way.
|
||||
// FIXME: if key contains ':', '=', or whitespace, must
|
||||
// quote it here. Note that JDK 1.1 does not do this.
|
||||
output.write(key);
|
||||
output.write("=");
|
||||
|
||||
boolean leading = true;
|
||||
for (int i = 0; i < value.length(); ++i)
|
||||
{
|
||||
boolean new_lead = false;
|
||||
char c = value.charAt(i);
|
||||
switch (c)
|
||||
{
|
||||
case '\n':
|
||||
output.write("\\n");
|
||||
break;
|
||||
case '\r':
|
||||
output.write("\\r");
|
||||
break;
|
||||
case '\t':
|
||||
output.write("\\t");
|
||||
break;
|
||||
case '\\':
|
||||
output.write("\\\\");
|
||||
break;
|
||||
|
||||
case '#':
|
||||
case '!':
|
||||
case '=':
|
||||
case ':':
|
||||
output.write("\\");
|
||||
output.write(c);
|
||||
break;
|
||||
|
||||
case ' ':
|
||||
new_lead = leading;
|
||||
if (leading)
|
||||
output.write("\\");
|
||||
output.write(c);
|
||||
break;
|
||||
|
||||
default:
|
||||
if (c < '\u0020' || c > '\u007e')
|
||||
{
|
||||
output.write("\\u");
|
||||
output.write(Character.forDigit(c >>> 12, 16));
|
||||
output.write(Character.forDigit((c >>> 8) & 0xff,
|
||||
16));
|
||||
output.write(Character.forDigit((c >>> 4) & 0xff,
|
||||
16));
|
||||
output.write(Character.forDigit(c & 0xff, 16));
|
||||
}
|
||||
else
|
||||
output.write(c);
|
||||
}
|
||||
leading = new_lead;
|
||||
}
|
||||
output.write(newline);
|
||||
}
|
||||
|
||||
output.flush();
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user