Viewing file:  break.cpp (4.12 KB) -rw-r--r--
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/*
*******************************************************************************
*
* © 2016 and later: Unicode, Inc. and others.
* License & terms of use: http://www.unicode.org/copyright.html#License
*
*******************************************************************************
*******************************************************************************
*
* Copyright (C) 2002-2003, International Business Machines
* Corporation and others. All Rights Reserved.
*
*******************************************************************************
*/
#include <stdio.h>
#include <unicode/brkiter.h>
#include <stdlib.h>
using namespace icu;
U_CFUNC int c_main(void);
void printUnicodeString(const UnicodeString &s) {
char charBuf[1000];
s.extract(0, s.length(), charBuf, sizeof(charBuf)-1, 0);
charBuf[sizeof(charBuf)-1] = 0;
printf("%s", charBuf);
}
void printTextRange( BreakIterator& iterator,
int32_t start, int32_t end )
{
CharacterIterator *strIter = iterator.getText().clone();
UnicodeString s;
strIter->getText(s);
printf(" %ld %ld\t", (long)start, (long)end);
printUnicodeString(UnicodeString(s, 0, start));
printf("|");
printUnicodeString(UnicodeString(s, start, end-start));
printf("|");
printUnicodeString(UnicodeString(s, end));
puts("");
delete strIter;
}
/* Print each element in order: */
void printEachForward( BreakIterator& boundary)
{
int32_t start = boundary.first();
for (int32_t end = boundary.next();
end != BreakIterator::DONE;
start = end, end = boundary.next())
{
printTextRange( boundary, start, end );
}
}
/* Print each element in reverse order: */
void printEachBackward( BreakIterator& boundary)
{
int32_t end = boundary.last();
for (int32_t start = boundary.previous();
start != BreakIterator::DONE;
end = start, start = boundary.previous())
{
printTextRange( boundary, start, end );
}
}
/* Print the first element */
void printFirst(BreakIterator& boundary)
{
int32_t start = boundary.first();
int32_t end = boundary.next();
printTextRange( boundary, start, end );
}
/* Print the last element */
void printLast(BreakIterator& boundary)
{
int32_t end = boundary.last();
int32_t start = boundary.previous();
printTextRange( boundary, start, end );
}
/* Print the element at a specified position */
void printAt(BreakIterator &boundary, int32_t pos )
{
int32_t end = boundary.following(pos);
int32_t start = boundary.previous();
printTextRange( boundary, start, end );
}
/* Creating and using text boundaries */
int main( void )
{
puts("ICU Break Iterator Sample Program\n");
puts("C++ Break Iteration\n");
BreakIterator* boundary;
UnicodeString stringToExamine("Aaa bbb ccc. Ddd eee fff.");
printf("Examining: ");
printUnicodeString(stringToExamine);
puts("");
//print each sentence in forward and reverse order
UErrorCode status = U_ZERO_ERROR;
boundary = BreakIterator::createSentenceInstance(
Locale::getUS(), status );
if (U_FAILURE(status)) {
printf("failed to create sentence break iterator. status = %s",
u_errorName(status));
exit(1);
}
boundary->setText(stringToExamine);
puts("\n Sentence Boundaries... ");
puts("----- forward: -----------");
printEachForward(*boundary);
puts("----- backward: ----------");
printEachBackward(*boundary);
delete boundary;
//print each word in order
printf("\n Word Boundaries... \n");
boundary = BreakIterator::createWordInstance(
Locale::getUS(), status);
boundary->setText(stringToExamine);
puts("----- forward: -----------");
printEachForward(*boundary);
//print first element
puts("----- first: -------------");
printFirst(*boundary);
//print last element
puts("----- last: --------------");
printLast(*boundary);
//print word at charpos 10
puts("----- at pos 10: ---------");
printAt(*boundary, 10 );
delete boundary;
puts("\nEnd C++ Break Iteration");
// Call the C version
return c_main();
}
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