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      1 /*
      2 *******************************************************************************
      3 *
      4 *     Copyright (C) 2002-2011, International Business Machines
      5 *     Corporation and others.    All Rights Reserved.
      6 *
      7 *******************************************************************************
      8 */
      9 
     10 #include "unicode/uchriter.h"
     11 #include "unicode/schriter.h"
     12 #include "unicode/ustring.h"
     13 #include <stdio.h>
     14 #include <unicode/brkiter.h>
     15 #include <unicode/ustdio.h>
     16 #include <stdlib.h>
     17 
     18 static UFILE *out;
     19 
     20 void printUnicodeString(const UnicodeString &s)
     21 {
     22     u_fprintf(out, "%S", &s);
     23 }
     24 
     25 void printUChar(UChar32 ch)
     26 {
     27     if(ch < 127) {
     28         u_fprintf(out, "%C", (UChar) ch);
     29     } else if (ch == CharacterIterator::DONE) {
     30         u_fprintf(out, "[CharacterIterator::DONE = 0xFFFF]");
     31     } else {
     32         u_fprintf(out, "[%X]", ch);
     33     }
     34 }
     35 
     36 class Test
     37 {
     38 public:
     39     void TestUChariter();
     40     void TestStringiter();
     41 };
     42 
     43 void Test::TestUChariter() {
     44     const char testChars[] = "Now is the time for all good men to come "
     45         "to the aid of their country.";
     46 
     47     UnicodeString testString(testChars,"");
     48     const UChar *testText = testString.getTerminatedBuffer();
     49 
     50     UCharCharacterIterator iter(testText, u_strlen(testText));
     51     UCharCharacterIterator* test2 = (UCharCharacterIterator*)iter.clone();
     52 
     53     u_fprintf(out, "testText = %s", testChars);
     54 
     55     if (iter != *test2 ) {
     56         u_fprintf(out, "clone() or equals() failed: Two clones tested unequal\n");
     57     }
     58 
     59     UnicodeString result1, result2;
     60     // getting and comparing the text within the iterators
     61     iter.getText(result1);
     62     test2->getText(result2);
     63     if (result1 != result2) {
     64         u_fprintf(out, "iter.getText() != clone.getText()\n");
     65     }
     66 
     67     u_fprintf(out, "\n");
     68 
     69     // Demonstrates seeking forward using the iterator.
     70     u_fprintf(out, "Forward  = ");
     71 
     72     UChar c = iter.first();
     73     printUChar(c);    // The first char
     74     int32_t i = 0;
     75 
     76     if (iter.startIndex() != 0 || iter.endIndex() != u_strlen(testText)) {
     77         u_fprintf(out, "startIndex() or endIndex() failed\n");
     78     }
     79 
     80 
     81     // Testing forward iteration...
     82     do {
     83         if (c == CharacterIterator::DONE && i != u_strlen(testText)) {
     84             u_fprintf(out, "Iterator reached end prematurely");
     85         }
     86         else if (c != testText[i]) {
     87             u_fprintf(out, "Character mismatch at position %d\n" + i);
     88         }
     89         if (iter.current() != c) {
     90             u_fprintf(out, "current() isn't working right");
     91         }
     92         if (iter.getIndex() != i) {
     93             u_fprintf(out, "getIndex() isn't working right\n");
     94         }
     95         if (c != CharacterIterator::DONE) {
     96             c = iter.next();
     97             i++;
     98         }
     99 
    100         u_fprintf(out, "|");
    101         printUChar(c);
    102 
    103     } while (c != CharacterIterator::DONE);
    104 
    105     delete test2;
    106     u_fprintf(out, "\n");
    107 }
    108 
    109 
    110 void Test::TestStringiter() {
    111     const char testChars[] = "Now is the time for all good men to come "
    112         "to the aid of their country.";
    113 
    114     UnicodeString testString(testChars,"");
    115     const UChar *testText    = testString.getTerminatedBuffer();
    116 
    117     StringCharacterIterator iter(testText, u_strlen(testText));
    118     StringCharacterIterator* test2 = (StringCharacterIterator*)iter.clone();
    119 
    120     if (iter != *test2 ) {
    121         u_fprintf(out, "clone() or equals() failed: Two clones tested unequal\n");
    122     }
    123 
    124     UnicodeString result1, result2;
    125     // getting and comparing the text within the iterators
    126     iter.getText(result1);
    127     test2->getText(result2);
    128     if (result1 != result2) {
    129         u_fprintf(out, "getText() failed\n");
    130     }
    131 
    132     u_fprintf(out, "Backwards: ");
    133 
    134     UChar c = iter.last();
    135     int32_t i = iter.endIndex();
    136 
    137     printUChar(c);
    138     i--; // already printed out the last char
    139 
    140     if (iter.startIndex() != 0 || iter.endIndex() != u_strlen(testText)) {
    141         u_fprintf(out, "startIndex() or endIndex() failed\n");
    142     }
    143 
    144     // Testing backward iteration over a range...
    145     do {
    146         if (c == CharacterIterator::DONE) {
    147             u_fprintf(out, "Iterator reached end prematurely\n");
    148         }
    149         else if (c != testText[i]) {
    150             u_fprintf(out, "Character mismatch at position %d\n", i);
    151         }
    152         if (iter.current() != c) {
    153             u_fprintf(out, "current() isn't working right\n");
    154         }
    155         if (iter.getIndex() != i) {
    156             u_fprintf(out, "getIndex() isn't working right [%d should be %d]\n", iter.getIndex(), i);
    157         }
    158         if (c != CharacterIterator::DONE) {
    159             c = iter.previous();
    160             i--;
    161         }
    162 
    163         u_fprintf(out, "|");
    164         printUChar(c);
    165     } while (c != CharacterIterator::DONE);
    166 
    167     u_fprintf(out, "\n");
    168     delete test2;
    169 }
    170 
    171 /* Creating and using text boundaries */
    172 int main( void )
    173 {
    174     UErrorCode status = U_ZERO_ERROR;
    175 
    176     out = u_finit(stdout, NULL, NULL);
    177 
    178     u_fprintf(out, "ICU Iteration Sample Program (C++)\n\n");
    179 
    180     Test t;
    181 
    182     u_fprintf(out, "\n");
    183     u_fprintf(out, "Test::TestUCharIter()\n");
    184 
    185     t.TestUChariter();
    186 
    187     u_fprintf(out, "-----\n");
    188     u_fprintf(out, "Test::TestStringchariter()\n");
    189 
    190     t.TestStringiter();
    191 
    192     u_fprintf(out, "-----\n");
    193 
    194     return 0;
    195 }
    196