1 files changed, 243 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/java/src/org/mozilla/xpcom/INIParser.java b/src/libs/xpcom18a4/java/src/org/mozilla/xpcom/INIParser.java
new file mode 100644
index 00000000..ba2f11c7
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+++ b/src/libs/xpcom18a4/java/src/org/mozilla/xpcom/INIParser.java
@@ -0,0 +1,243 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Java XPCOM Bindings.
+ *
+ * The Initial Developer of the Original Code is
+ * IBM Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2005
+ * IBM Corporation. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Javier Pedemonte (jhpedemonte@gmail.com)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+package org.mozilla.xpcom;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.nio.charset.Charset;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Properties;
+import java.util.StringTokenizer;
+
+
+/**
+ * A simple parser for INI files.
+ */
+public class INIParser {
+
+  private HashMap<String, Properties> mSections;
+
+  /**
+   * Creates a new <code>INIParser</code> instance from the INI file at the
+   * given path. <code>aCharset</code> specifies the character encoding of
+   * the file.
+   *
+   * @param aFilename path of INI file to parse
+   * @param aCharset character encoding of file
+   * @throws FileNotFoundException if <code>aFilename</code> does not exist.
+   * @throws IOException if there is a problem reading the given file.
+   */
+  public INIParser(String aFilename, Charset aCharset)
+          throws FileNotFoundException, IOException {
+    initFromFile(new File(aFilename), aCharset);
+  }
+
+  /**
+   * Creates a new <code>INIParser</code> instance from the INI file at the
+   * given path, which is assumed to be in the <code>UTF-8</code> charset.
+   *
+   * @param aFilename path of INI file to parse
+   * @throws FileNotFoundException if <code>aFilename</code> does not exist.
+   * @throws IOException if there is a problem reading the given file.
+   */
+  public INIParser(String aFilename) throws FileNotFoundException, IOException {
+    initFromFile(new File(aFilename), Charset.forName("UTF-8"));
+  }
+
+  /**
+   * Creates a new <code>INIParser</code> instance from the given file.
+   * <code>aCharset</code> specifies the character encoding of the file.
+   *
+   * @param aFile INI file to parse
+   * @param aCharset character encoding of file
+   * @throws FileNotFoundException if <code>aFile</code> does not exist.
+   * @throws IOException if there is a problem reading the given file.
+   */
+  public INIParser(File aFile, Charset aCharset)
+          throws FileNotFoundException, IOException {
+    initFromFile(aFile, aCharset);
+  }
+
+  /**
+   * Creates a new <code>INIParser</code> instance from the given file,
+   * which is assumed to be in the <code>UTF-8</code> charset.
+   *
+   * @param aFile INI file to parse
+   * @throws FileNotFoundException if <code>aFile</code> does not exist.
+   * @throws IOException if there is a problem reading the given file.
+   */
+  public INIParser(File aFile) throws FileNotFoundException, IOException {
+    initFromFile(aFile, Charset.forName("UTF-8"));
+  }
+
+  /**
+   * Parses given INI file.
+   *
+   * @param aFile INI file to parse
+   * @param aCharset character encoding of file
+   * @throws FileNotFoundException if <code>aFile</code> does not exist.
+   * @throws IOException if there is a problem reading the given file.
+   */
+  private void initFromFile(File aFile, Charset aCharset)
+          throws FileNotFoundException, IOException {
+    FileInputStream fileStream = new FileInputStream(aFile);
+    InputStreamReader inStream = new InputStreamReader(fileStream, aCharset);
+    BufferedReader reader = new BufferedReader(inStream);
+
+    mSections = new HashMap<String, Properties>();
+    String currSection = null;
+
+    String line;
+    while ((line = reader.readLine()) != null) {
+      // skip empty lines and comment lines
+      String trimmedLine = line.trim();
+      if (trimmedLine.length() == 0 || trimmedLine.startsWith("#")
+              || trimmedLine.startsWith(";")) {
+        continue;
+      }
+
+      // Look for section headers (i.e. "[Section]").
+      if (line.startsWith("[")) {
+        /*
+         * We are looking for a well-formed "[Section]".  If this header is
+         * malformed (i.e. "[Section" or "[Section]Moretext"), just skip it
+         * and go on to next well-formed section header.
+         */
+        if (!trimmedLine.endsWith("]") ||
+            trimmedLine.indexOf("]") != (trimmedLine.length() - 1)) {
+          currSection = null;
+          continue;
+        }
+
+        // remove enclosing brackets
+        currSection = trimmedLine.substring(1, trimmedLine.length() - 1);
+        continue;
+      }
+
+      // If we haven't found a valid section header, continue to next line
+      if (currSection == null) {
+        continue;
+      }
+
+      StringTokenizer tok = new StringTokenizer(line, "=");
+      if (tok.countTokens() != 2) { // looking for value pairs
+        continue;
+      }
+
+      Properties props = mSections.get(currSection);
+      if (props == null) {
+        props = new Properties();
+        mSections.put(currSection, props);
+      }
+      props.setProperty(tok.nextToken(), tok.nextToken());
+    }
+
+    reader.close();
+  }
+
+  /**
+   * Returns an iterator over the section names available in the INI file.
+   *
+   * @return an iterator over the section names
+   */
+  public Iterator getSections() {
+    return mSections.keySet().iterator();
+  }
+
+  /**
+   * Returns an iterator over the keys available within a section.
+   *
+   * @param aSection section name whose keys are to be returned
+   * @return an iterator over section keys, or <code>null</code> if no
+   *          such section exists
+   */
+  public Iterator getKeys(String aSection) {
+    /*
+     * Simple wrapper class to convert Enumeration to Iterator
+     */
+    class PropertiesIterator implements Iterator {
+      private Enumeration e;
+
+      public PropertiesIterator(Enumeration aEnum) {
+        e = aEnum;
+      }
+
+      public boolean hasNext() {
+        return e.hasMoreElements();
+      }
+
+      public Object next() {
+        return e.nextElement();
+      }
+
+      public void remove() {
+        return;
+      }
+    }
+
+    Properties props = mSections.get(aSection);
+    if (props == null) {
+      return null;
+    }
+
+    return new PropertiesIterator(props.propertyNames());
+  }
+
+  /**
+   * Gets the string value for a particular section and key.
+   *
+   * @param aSection a section name
+   * @param aKey the key whose value is to be returned.
+   * @return string value of particular section and key
+   */
+  public String getString(String aSection, String aKey) {
+    Properties props = mSections.get(aSection);
+    if (props == null) {
+      return null;
+    }
+
+    return props.getProperty(aKey);
+  }
+
+}