FM / citer

/opt/alt/libicu71/usr/share/doc/alt-libicu71-devel/samples/citer/

/opt/alt/libicu71/usr/share/doc/alt-libicu71-devel/samples/citer

Name	Size	Mode	Actions
citer.cpp	5527	0644	edit dl rm
citer.vcxproj	6421	0644	edit dl rm
citer.vcxproj.filters	900	0644	edit dl rm
Makefile	612	0644	edit dl rm
readme.txt	2214	0644	edit dl rm

Edit: /opt/alt/libicu71/usr/share/doc/alt-libicu71-devel/samples/citer/citer.cpp (5527B)

/*
*******************************************************************************
*
*     © 2016 and later: Unicode, Inc. and others.
*     License & terms of use: http://www.unicode.org/copyright.html
*
*******************************************************************************
*******************************************************************************
*
*     Copyright (C) 2002-2011, International Business Machines
*     Corporation and others.    All Rights Reserved.
*
*******************************************************************************
*/

#include "unicode/uchriter.h"
#include "unicode/schriter.h"
#include "unicode/ustring.h"
#include <stdio.h>
#include <unicode/brkiter.h>
#include <unicode/ustdio.h>
#include <stdlib.h>

static UFILE *out;

using icu::CharacterIterator;
using icu::StringCharacterIterator;
using icu::UCharCharacterIterator;
using icu::UnicodeString;

void printUnicodeString(const UnicodeString &s)
{
    u_fprintf(out, "%S", &s);
}

void printUChar(UChar32 ch)
{
    if(ch < 127) {
        u_fprintf(out, "%C", (UChar) ch);
    } else if (ch == CharacterIterator::DONE) {
        u_fprintf(out, "[CharacterIterator::DONE = 0xFFFF]");
    } else {
        u_fprintf(out, "[%X]", ch);
    }
}

class Test
{
public:
    void TestUChariter();
    void TestStringiter();
};

void Test::TestUChariter() {
    const char testChars[] = "Now is the time for all good men to come "
        "to the aid of their country.";

UnicodeString testString(testChars,"");
    const UChar *testText = testString.getTerminatedBuffer();

UCharCharacterIterator iter(testText, u_strlen(testText));
    UCharCharacterIterator* test2 = iter.clone();

u_fprintf(out, "testText = %s", testChars);

if (iter != *test2 ) {
        u_fprintf(out, "clone() or equals() failed: Two clones tested unequal\n");
    }

UnicodeString result1, result2;
    // getting and comparing the text within the iterators
    iter.getText(result1);
    test2->getText(result2);
    if (result1 != result2) {
        u_fprintf(out, "iter.getText() != clone.getText()\n");
    }

u_fprintf(out, "\n");

// Demonstrates seeking forward using the iterator.
    u_fprintf(out, "Forward  = ");

UChar c = iter.first();
    printUChar(c);    // The first char
    int32_t i = 0;

if (iter.startIndex() != 0 || iter.endIndex() != u_strlen(testText)) {
        u_fprintf(out, "startIndex() or endIndex() failed\n");
    }

// Testing forward iteration...
    do {
        if (c == CharacterIterator::DONE && i != u_strlen(testText)) {
            u_fprintf(out, "Iterator reached end prematurely");
        }
        else if (c != testText[i]) {
          u_fprintf(out, "Character mismatch at position %d\n", i);
        }
        if (iter.current() != c) {
            u_fprintf(out, "current() isn't working right");
        }
        if (iter.getIndex() != i) {
            u_fprintf(out, "getIndex() isn't working right\n");
        }
        if (c != CharacterIterator::DONE) {
            c = iter.next();
            i++;
        }

u_fprintf(out, "|");
        printUChar(c);

} while (c != CharacterIterator::DONE);

delete test2;
    u_fprintf(out, "\n");
}

void Test::TestStringiter() {
    const char testChars[] = "Now is the time for all good men to come "
        "to the aid of their country.";

UnicodeString testString(testChars,"");
    const UChar *testText    = testString.getTerminatedBuffer();

StringCharacterIterator iter(testText, u_strlen(testText));
    StringCharacterIterator* test2 = iter.clone();

if (iter != *test2 ) {
        u_fprintf(out, "clone() or equals() failed: Two clones tested unequal\n");
    }

u_fprintf(out, "Backwards: ");

UChar c = iter.last();
    int32_t i = iter.endIndex();

printUChar(c);
    i--; // already printed out the last char

if (iter.startIndex() != 0 || iter.endIndex() != u_strlen(testText)) {
        u_fprintf(out, "startIndex() or endIndex() failed\n");
    }

// Testing backward iteration over a range...
    do {
        if (c == CharacterIterator::DONE) {
            u_fprintf(out, "Iterator reached end prematurely\n");
        }
        else if (c != testText[i]) {
            u_fprintf(out, "Character mismatch at position %d\n", i);
        }
        if (iter.current() != c) {
            u_fprintf(out, "current() isn't working right\n");
        }
        if (iter.getIndex() != i) {
            u_fprintf(out, "getIndex() isn't working right [%d should be %d]\n", iter.getIndex(), i);
        }
        if (c != CharacterIterator::DONE) {
            c = iter.previous();
            i--;
        }

u_fprintf(out, "|");
        printUChar(c);
    } while (c != CharacterIterator::DONE);

u_fprintf(out, "\n");
    delete test2;
}

/* Creating and using text boundaries */
int main( void )
{
    UErrorCode status = U_ZERO_ERROR;

out = u_finit(stdout, NULL, NULL);

u_fprintf(out, "ICU Iteration Sample Program (C++)\n\n");

Test t;

u_fprintf(out, "\n");
    u_fprintf(out, "Test::TestUCharIter()\n");

t.TestUChariter();

u_fprintf(out, "-----\n");
    u_fprintf(out, "Test::TestStringchariter()\n");

t.TestStringiter();

u_fprintf(out, "-----\n");

return 0;
}

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