1 /*
2 ******************************************************************************
3 *
4 * Copyright (C) 2000-2014, International Business Machines
5 * Corporation and others. All Rights Reserved.
6 *
7 ******************************************************************************
8 *
9 * File sscanf.c
10 *
11 * Modification History:
12 *
13 * Date Name Description
14 * 02/08/00 george Creation. Copied from uscanf.c
15 ******************************************************************************
16 */
17
18 #include "unicode/utypes.h"
19
20 #if !UCONFIG_NO_FORMATTING && !UCONFIG_NO_CONVERSION
21
22 #include "unicode/putil.h"
23 #include "unicode/ustdio.h"
24 #include "unicode/ustring.h"
25 #include "uscanf.h"
26 #include "ufile.h"
27 #include "ufmt_cmn.h"
28
29 #include "cmemory.h"
30 #include "cstring.h"
31
32
33 U_CAPI int32_t U_EXPORT2
u_sscanf(const UChar * buffer,const char * patternSpecification,...)34 u_sscanf(const UChar *buffer,
35 const char *patternSpecification,
36 ... )
37 {
38 va_list ap;
39 int32_t converted;
40
41 va_start(ap, patternSpecification);
42 converted = u_vsscanf(buffer, patternSpecification, ap);
43 va_end(ap);
44
45 return converted;
46 }
47
48 U_CAPI int32_t U_EXPORT2
u_sscanf_u(const UChar * buffer,const UChar * patternSpecification,...)49 u_sscanf_u(const UChar *buffer,
50 const UChar *patternSpecification,
51 ... )
52 {
53 va_list ap;
54 int32_t converted;
55
56 va_start(ap, patternSpecification);
57 converted = u_vsscanf_u(buffer, patternSpecification, ap);
58 va_end(ap);
59
60 return converted;
61 }
62
63 U_CAPI int32_t U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
u_vsscanf(const UChar * buffer,const char * patternSpecification,va_list ap)64 u_vsscanf(const UChar *buffer,
65 const char *patternSpecification,
66 va_list ap)
67 {
68 int32_t converted;
69 UChar *pattern;
70 UChar patBuffer[UFMT_DEFAULT_BUFFER_SIZE];
71 int32_t size = (int32_t)uprv_strlen(patternSpecification) + 1;
72
73 /* convert from the default codepage to Unicode */
74 if (size >= MAX_UCHAR_BUFFER_SIZE(patBuffer)) {
75 pattern = (UChar *)uprv_malloc(size * sizeof(UChar));
76 if(pattern == 0) {
77 return 0;
78 }
79 }
80 else {
81 pattern = patBuffer;
82 }
83 u_charsToUChars(patternSpecification, pattern, size);
84
85 /* do the work */
86 converted = u_vsscanf_u(buffer, pattern, ap);
87
88 /* clean up */
89 if (pattern != patBuffer) {
90 uprv_free(pattern);
91 }
92
93 return converted;
94 }
95
96 U_CAPI int32_t U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
u_vsscanf_u(const UChar * buffer,const UChar * patternSpecification,va_list ap)97 u_vsscanf_u(const UChar *buffer,
98 const UChar *patternSpecification,
99 va_list ap)
100 {
101 int32_t converted;
102 UFILE inStr;
103
104 inStr.fConverter = NULL;
105 inStr.fFile = NULL;
106 inStr.fOwnFile = FALSE;
107 #if !UCONFIG_NO_TRANSLITERATION
108 inStr.fTranslit = NULL;
109 #endif
110 inStr.fUCBuffer[0] = 0;
111 inStr.str.fBuffer = (UChar *)buffer;
112 inStr.str.fPos = (UChar *)buffer;
113 inStr.str.fLimit = buffer + u_strlen(buffer);
114
115 if(u_locbund_init(&inStr.str.fBundle, "en_US_POSIX") == 0) {
116 return 0;
117 }
118
119 converted = u_scanf_parse(&inStr, patternSpecification, ap);
120
121 u_locbund_close(&inStr.str.fBundle);
122
123 /* return # of items converted */
124 return converted;
125 }
126
127 #endif /* #if !UCONFIG_NO_FORMATTING */
128
129