1/*
2*******************************************************************************
3*
4*   Copyright (C) 2002, International Business Machines
5*   Corporation and others.  All Rights Reserved.
6*
7*******************************************************************************
8*/
9
10#include <stdio.h>
11#include <stdlib.h>
12#include <unicode/ustring.h>
13#include <unicode/ubrk.h>
14
15U_CFUNC int c_main(void);
16
17void printTextRange(UChar* str, int32_t start, int32_t end)
18{
19  char    charBuf[1000];
20  UChar   savedEndChar;
21
22  savedEndChar = str[end];
23  str[end] = 0;
24  u_austrncpy(charBuf, str+start, sizeof(charBuf)-1);
25  charBuf[sizeof(charBuf)-1]=0;
26  printf("string[%2d..%2d] \"%s\"\n", start, end-1, charBuf);
27  str[end] = savedEndChar;
28}
29
30
31
32/* Print each element in order: */
33void printEachForward( UBreakIterator* boundary, UChar* str) {
34  int32_t end;
35  int32_t start = ubrk_first(boundary);
36  for (end = ubrk_next(boundary); end != UBRK_DONE; start = end, end =
37	 ubrk_next(boundary)) {
38    printTextRange(str, start, end );
39  }
40}
41
42
43/* Print each element in reverse order: */
44void printEachBackward( UBreakIterator* boundary, UChar* str) {
45  int32_t start;
46  int32_t end = ubrk_last(boundary);
47  for (start = ubrk_previous(boundary); start != UBRK_DONE;  end = start,
48	 start =ubrk_previous(boundary)) {
49    printTextRange( str, start, end );
50  }
51}
52
53/* Print first element */
54void printFirst(UBreakIterator* boundary, UChar* str) {
55  int32_t end;
56  int32_t start = ubrk_first(boundary);
57  end = ubrk_next(boundary);
58  printTextRange( str, start, end );
59}
60
61/* Print last element */
62void printLast(UBreakIterator* boundary, UChar* str) {
63  int32_t start;
64  int32_t end = ubrk_last(boundary);
65  start = ubrk_previous(boundary);
66  printTextRange(str, start, end );
67}
68
69/* Print the element at a specified position */
70
71void printAt(UBreakIterator* boundary, int32_t pos , UChar* str) {
72  int32_t start;
73  int32_t end = ubrk_following(boundary, pos);
74  start = ubrk_previous(boundary);
75  printTextRange(str, start, end );
76}
77
78/* Creating and using text boundaries*/
79
80int c_main( void ) {
81  UBreakIterator *boundary;
82  char           cStringToExamine[] = "Aaa bbb ccc. Ddd eee fff.";
83  UChar          stringToExamine[sizeof(cStringToExamine)+1];
84  UErrorCode     status = U_ZERO_ERROR;
85
86  printf("\n\n"
87	 "C Boundary Analysis\n"
88	 "-------------------\n\n");
89
90  printf("Examining: %s\n", cStringToExamine);
91  u_uastrcpy(stringToExamine, cStringToExamine);
92
93  /*print each sentence in forward and reverse order*/
94  boundary = ubrk_open(UBRK_SENTENCE, "en_us", stringToExamine,
95		       -1, &status);
96  if (U_FAILURE(status)) {
97    printf("ubrk_open error: %s\n", u_errorName(status));
98    exit(1);
99  }
100
101  printf("\n----- Sentence Boundaries, forward: -----------\n");
102  printEachForward(boundary, stringToExamine);
103  printf("\n----- Sentence Boundaries, backward: ----------\n");
104  printEachBackward(boundary, stringToExamine);
105  ubrk_close(boundary);
106
107  /*print each word in order*/
108  boundary = ubrk_open(UBRK_WORD, "en_us", stringToExamine,
109		       u_strlen(stringToExamine), &status);
110  printf("\n----- Word Boundaries, forward: -----------\n");
111  printEachForward(boundary, stringToExamine);
112  printf("\n----- Word Boundaries, backward: ----------\n");
113  printEachBackward(boundary, stringToExamine);
114  /*print first element*/
115  printf("\n----- first: -------------\n");
116  printFirst(boundary, stringToExamine);
117  /*print last element*/
118  printf("\n----- last: --------------\n");
119  printLast(boundary, stringToExamine);
120  /*print word at charpos 10 */
121  printf("\n----- at pos 10: ---------\n");
122  printAt(boundary, 10 , stringToExamine);
123
124  ubrk_close(boundary);
125
126  printf("\nEnd of C boundary analysis\n");
127  return 0;
128}
129