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