Examples of com.ibm.icu.text.UnicodeSet.applyPattern()

com.ibm.icu.text.UnicodeSet.applyPattern()
Modifies this set to represent the set specified by the given pattern. See the class description for the syntax of the pattern language. Whitespace is ignored. @param pattern a string specifying what characters are in the set @exception java.lang.IllegalArgumentException if the patterncontains a syntax error. @stable ICU 2.0

            /* build a set with all code points that were not designated by the specified Unicode version */
            UnicodeSet set = new UnicodeSet();


            switch(options) {
            case Normalizer.UNICODE_3_2:
                set.applyPattern("[:^Age=3.2:]");
                break;
            default:
                return null;
            }

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        new String[] {"aa", "ab", NOT, "ac"});
    s.add("ac");
    expectToPattern(s, "[a-z{aa}{ab}{ac}]",
        new String[] {"aa", "ab", "ac", NOT, "xy"});
    
    s.applyPattern("[a-z {\\{l} {r\\}}]");
    expectToPattern(s, "[a-z{r\\}}{\\{l}]",
        new String[] {"{l", "r}", NOT, "xy"});
    s.add("[]");
    expectToPattern(s, "[a-z{\\[\\]}{r\\}}{\\{l}]",
        new String[] {"{l", "r}", "[]", NOT, "xy"});

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        new String[] {"{l", "r}", NOT, "xy"});
    s.add("[]");
    expectToPattern(s, "[a-z{\\[\\]}{r\\}}{\\{l}]",
        new String[] {"{l", "r}", "[]", NOT, "xy"});
    
    s.applyPattern("[a-z {\u4E01\u4E02}{\\n\\r}]");
    expectToPattern(s, "[a-z{\\u000A\\u000D}{\\u4E01\\u4E02}]",
        new String[] {"\u4E01\u4E02", "\n\r"});
    
    s.clear();
    s.add("abc");

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    s.add('a', 'b');
    expectToPattern(s, "[ab]", null);
    
    // Cover applyPattern, applyPropertyAlias
    s.clear();
    s.applyPattern("[ab ]", true);
    expectToPattern(s, "[ab]", new String[] {"a", NOT, "ab", " "});
    s.clear();
    s.applyPattern("[ab ]", false);
    expectToPattern(s, "[\\ ab]", new String[] {"a", "\u0020", NOT, "ab"});

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    // Cover applyPattern, applyPropertyAlias
    s.clear();
    s.applyPattern("[ab ]", true);
    expectToPattern(s, "[ab]", new String[] {"a", NOT, "ab", " "});
    s.clear();
    s.applyPattern("[ab ]", false);
    expectToPattern(s, "[\\ ab]", new String[] {"a", "\u0020", NOT, "ab"});
    
    s.clear();
    s.applyPropertyAlias("nv", "0.5");
    expectToPattern(s, "[\\u00BD\\u0D74\\u0F2A\\u2CFD\\U00010141\\U00010175\\U00010176]", null);

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    s.applyPropertyAlias("gc", "Lu");
    // TODO expectToPattern(s, what?)


    // RemoveAllStrings()
    s.clear();
    s.applyPattern("[a-z{abc}{def}]");
    expectToPattern(s, "[a-z{abc}{def}]", null);
    s.removeAllStrings();
    expectToPattern(s, "[a-z]", null);
  }

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    UnicodeSet set2 = new UnicodeSet("[i-o]");
    set.addAll(set2);
    expectPairs(set, "hq");
    // right
    set.applyPattern("[a-m]");
    set2.applyPattern("[e-o]");
    set.addAll(set2);
    expectPairs(set, "ao");
    // left
    set.applyPattern("[e-o]");
    set2.applyPattern("[a-m]");

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    set2.applyPattern("[e-o]");
    set.addAll(set2);
    expectPairs(set, "ao");
    // left
    set.applyPattern("[e-o]");
    set2.applyPattern("[a-m]");
    set.addAll(set2);
    expectPairs(set, "ao");
    // 1 overlap against 3
    set.applyPattern("[a-eg-mo-w]");
    set2.applyPattern("[d-q]");

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    set2.applyPattern("[a-m]");
    set.addAll(set2);
    expectPairs(set, "ao");
    // 1 overlap against 3
    set.applyPattern("[a-eg-mo-w]");
    set2.applyPattern("[d-q]");
    set.addAll(set2);
    expectPairs(set, "aw");
  }
  
  public void TestAPI() {

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      errln("FAIL, size should be 0x110000, but is" + set.size());
    }
    
    // contains(first, last)
    set.clear();
    set.applyPattern("[A-Y 1-8 b-d l-y]");
    for (int i = 0; i<set.getRangeCount(); ++i) {
      int a = set.getRangeStart(i);
      int b = set.getRangeEnd(i);
      if (!set.contains(a, b)) {
        errln("FAIL, should contain " + (char)a + '-' + (char)b +

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