Viewing file:  citer.cpp (5.47 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/*
*******************************************************************************
*
* © 2016 and later: Unicode, Inc. and others.
* License & terms of use: http://www.unicode.org/copyright.html#License
*
*******************************************************************************
*******************************************************************************
*
* 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 = (UCharCharacterIterator*)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 = (StringCharacterIterator*)iter.clone();
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, "getText() failed\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;
}
|