View Javadoc
1   /*
2    * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4    *
5    * This code is free software; you can redistribute it and/or modify it
6    * under the terms of the GNU General Public License version 2 only, as
7    * published by the Free Software Foundation.  Oracle designates this
8    * particular file as subject to the "Classpath" exception as provided
9    * by Oracle in the LICENSE file that accompanied this code.
10   *
11   * This code is distributed in the hope that it will be useful, but WITHOUT
12   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14   * version 2 for more details (a copy is included in the LICENSE file that
15   * accompanied this code).
16   *
17   * You should have received a copy of the GNU General Public License version
18   * 2 along with this work; if not, write to the Free Software Foundation,
19   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20   *
21   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22   * or visit www.oracle.com if you need additional information or have any
23   * questions.
24   */
25  
26  package build.tools.generatecharacter;
27  
28  import java.util.regex.*;
29  import java.util.*;
30  import java.io.*;
31  
32  /**
33   * A PropList object contains the lists of code points that have
34   * the same Unicode property defined in PropList.txt
35   *
36   * @author Xueming Shen
37   */
38  public class PropList {
39  
40      public static PropList readSpecFile(File file, int plane)
41          throws IOException
42      {
43          return new PropList(file, plane);
44      }
45  
46      public List<Integer> codepoints(String name) {
47          return propMap.get(name);
48      }
49  
50      public Set<String> names() {
51          return propMap.keySet();
52      }
53  
54      private Map<String, ArrayList<Integer>> propMap =
55          new LinkedHashMap<String, ArrayList<Integer>>();
56  
57      private PropList(File file, int plane) throws IOException {
58  
59          int i, j;
60          BufferedReader sbfr = new BufferedReader(new FileReader(file));
61          Matcher m = Pattern.compile("(\\p{XDigit}+)(?:\\.{2}(\\p{XDigit}+))?\\s*;\\s+(\\w+)\\s+#.*").matcher("");
62          String line = null;
63          int lineNo = 0;
64          while ((line = sbfr.readLine()) != null) {
65              lineNo++;
66              if (line.length() <= 1 || line.charAt(0) == '#') {
67                  continue;
68              }
69              m.reset(line);
70              if (m.matches()) {
71                  int start = Integer.parseInt(m.group(1), 16);
72                  if ((start >> 16) != plane)
73                      continue;
74                  int end = (m.group(2)==null)?start
75                            :Integer.parseInt(m.group(2), 16);
76                  String name = m.group(3);
77  
78                  start &= 0xffff;
79                  end &= 0xffff;
80  
81                  ArrayList<Integer> list = propMap.get(name);
82                  if (list == null) {
83                      list = new ArrayList<Integer>();
84                      propMap.put(name, list);
85                  }
86                  while (start <= end)
87                      list.add(start++);
88              } else {
89                  System.out.printf("Warning: Unrecognized line %d <%s>%n", lineNo, line);
90              }
91          }
92          sbfr.close();
93  
94          //for (String name: propMap.keySet()) {
95          //    System.out.printf("%s    %d%n", name, propMap.get(name).size());
96          //}
97      }
98  
99      public static void main(String[] args) throws IOException {
100         readSpecFile(new File(args[0]), Integer.decode(args[1]));
101     }
102 }