135 lines
3.9 KiB
C
135 lines
3.9 KiB
C
/*
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*******************************************************************************
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*
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* © 2016 and later: Unicode, Inc. and others.
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* License & terms of use: http://www.unicode.org/copyright.html#License
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*
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*******************************************************************************
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*******************************************************************************
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*
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* Copyright (C) 2002, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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*******************************************************************************
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unicode/ustring.h>
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#include <unicode/ubrk.h>
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U_CFUNC int c_main(void);
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void printTextRange(UChar* str, int32_t start, int32_t end)
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{
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char charBuf[1000];
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UChar savedEndChar;
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savedEndChar = str[end];
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str[end] = 0;
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u_austrncpy(charBuf, str+start, sizeof(charBuf)-1);
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charBuf[sizeof(charBuf)-1]=0;
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printf("string[%2d..%2d] \"%s\"\n", start, end-1, charBuf);
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str[end] = savedEndChar;
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}
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/* Print each element in order: */
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void printEachForward( UBreakIterator* boundary, UChar* str) {
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int32_t end;
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int32_t start = ubrk_first(boundary);
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for (end = ubrk_next(boundary); end != UBRK_DONE; start = end, end =
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ubrk_next(boundary)) {
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printTextRange(str, start, end );
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}
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}
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/* Print each element in reverse order: */
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void printEachBackward( UBreakIterator* boundary, UChar* str) {
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int32_t start;
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int32_t end = ubrk_last(boundary);
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for (start = ubrk_previous(boundary); start != UBRK_DONE; end = start,
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start =ubrk_previous(boundary)) {
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printTextRange( str, start, end );
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}
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}
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/* Print first element */
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void printFirst(UBreakIterator* boundary, UChar* str) {
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int32_t end;
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int32_t start = ubrk_first(boundary);
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end = ubrk_next(boundary);
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printTextRange( str, start, end );
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}
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/* Print last element */
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void printLast(UBreakIterator* boundary, UChar* str) {
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int32_t start;
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int32_t end = ubrk_last(boundary);
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start = ubrk_previous(boundary);
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printTextRange(str, start, end );
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}
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/* Print the element at a specified position */
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void printAt(UBreakIterator* boundary, int32_t pos , UChar* str) {
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int32_t start;
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int32_t end = ubrk_following(boundary, pos);
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start = ubrk_previous(boundary);
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printTextRange(str, start, end );
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}
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/* Creating and using text boundaries*/
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int c_main( void ) {
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UBreakIterator *boundary;
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char cStringToExamine[] = "Aaa bbb ccc. Ddd eee fff.";
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UChar stringToExamine[sizeof(cStringToExamine)+1];
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UErrorCode status = U_ZERO_ERROR;
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printf("\n\n"
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"C Boundary Analysis\n"
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"-------------------\n\n");
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printf("Examining: %s\n", cStringToExamine);
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u_uastrcpy(stringToExamine, cStringToExamine);
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/*print each sentence in forward and reverse order*/
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boundary = ubrk_open(UBRK_SENTENCE, "en_us", stringToExamine,
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-1, &status);
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if (U_FAILURE(status)) {
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printf("ubrk_open error: %s\n", u_errorName(status));
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exit(1);
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}
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printf("\n----- Sentence Boundaries, forward: -----------\n");
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printEachForward(boundary, stringToExamine);
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printf("\n----- Sentence Boundaries, backward: ----------\n");
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printEachBackward(boundary, stringToExamine);
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ubrk_close(boundary);
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/*print each word in order*/
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boundary = ubrk_open(UBRK_WORD, "en_us", stringToExamine,
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u_strlen(stringToExamine), &status);
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printf("\n----- Word Boundaries, forward: -----------\n");
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printEachForward(boundary, stringToExamine);
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printf("\n----- Word Boundaries, backward: ----------\n");
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printEachBackward(boundary, stringToExamine);
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/*print first element*/
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printf("\n----- first: -------------\n");
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printFirst(boundary, stringToExamine);
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/*print last element*/
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printf("\n----- last: --------------\n");
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printLast(boundary, stringToExamine);
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/*print word at charpos 10 */
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printf("\n----- at pos 10: ---------\n");
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printAt(boundary, 10 , stringToExamine);
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ubrk_close(boundary);
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printf("\nEnd of C boundary analysis\n");
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return 0;
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}
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