1 // Copyright (C) 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
4 ******************************************************************************
6 * Copyright (C) 1998-2014, International Business Machines
7 * Corporation and others. All Rights Reserved.
9 ******************************************************************************
13 * Modification History:
15 * Date Name Description
16 * 11/19/98 stephen Creation.
17 * 03/12/99 stephen Modified for new C API.
18 * Added conversion from default codepage.
19 * 08/07/2003 george Reunify printf implementations
20 ******************************************************************************
23 #include "unicode/utypes.h"
25 #if !UCONFIG_NO_FORMATTING && !UCONFIG_NO_CONVERSION
27 #include "unicode/ustdio.h"
28 #include "unicode/ustring.h"
29 #include "unicode/unum.h"
30 #include "unicode/udat.h"
31 #include "unicode/putil.h"
43 static UFILE *gStdOut = NULL;
44 static UInitOnce gStdOutInitOnce = U_INITONCE_INITIALIZER;
46 static UBool U_CALLCONV uprintf_cleanup(void)
48 if (gStdOut != NULL) {
52 gStdOutInitOnce.reset();
56 static void U_CALLCONV u_stdout_init() {
57 U_ASSERT(gStdOut == NULL);
58 gStdOut = u_finit(stdout, NULL, NULL);
59 ucln_io_registerCleanup(UCLN_IO_PRINTF, &uprintf_cleanup);
62 U_CAPI UFILE * U_EXPORT2
65 umtx_initOnce(gStdOutInitOnce, &u_stdout_init);
69 static int32_t U_EXPORT2
70 u_printf_write(void *context,
74 return u_file_write(str, count, (UFILE *)context);
78 u_printf_pad_and_justify(void *context,
79 const u_printf_spec_info *info,
83 UFILE *output = (UFILE *)context;
86 /* pad and justify, if needed */
87 if(info->fWidth != -1 && resultLen < info->fWidth) {
90 written = u_file_write(result, resultLen, output);
91 for(i = 0; i < info->fWidth - resultLen; ++i) {
92 written += u_file_write(&info->fPadChar, 1, output);
98 for(i = 0; i < info->fWidth - resultLen; ++i) {
99 written += u_file_write(&info->fPadChar, 1, output);
101 written += u_file_write(result, resultLen, output);
104 /* just write the formatted output */
106 written = u_file_write(result, resultLen, output);
112 U_CAPI int32_t U_EXPORT2
114 const char *patternSpecification,
120 va_start(ap, patternSpecification);
121 count = u_vfprintf(f, patternSpecification, ap);
127 U_CAPI int32_t U_EXPORT2
128 u_printf(const char *patternSpecification,
133 va_start(ap, patternSpecification);
134 count = u_vfprintf(u_get_stdout(), patternSpecification, ap);
139 U_CAPI int32_t U_EXPORT2
140 u_fprintf_u( UFILE *f,
141 const UChar *patternSpecification,
147 va_start(ap, patternSpecification);
148 count = u_vfprintf_u(f, patternSpecification, ap);
154 U_CAPI int32_t U_EXPORT2
155 u_printf_u(const UChar *patternSpecification,
160 va_start(ap, patternSpecification);
161 count = u_vfprintf_u(u_get_stdout(), patternSpecification, ap);
166 U_CAPI int32_t U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
167 u_vfprintf( UFILE *f,
168 const char *patternSpecification,
173 UChar buffer[UFMT_DEFAULT_BUFFER_SIZE];
174 size_t size = strlen(patternSpecification) + 1;
176 /* convert from the default codepage to Unicode */
177 if (size >= MAX_UCHAR_BUFFER_SIZE(buffer)) {
178 pattern = (UChar *)uprv_malloc(size * sizeof(UChar));
186 u_charsToUChars(patternSpecification, pattern, size);
189 count = u_vfprintf_u(f, pattern, ap);
192 if (pattern != buffer) {
199 static const u_printf_stream_handler g_stream_handler = {
201 u_printf_pad_and_justify
204 U_CAPI int32_t U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
205 u_vfprintf_u( UFILE *f,
206 const UChar *patternSpecification,
209 int32_t written = 0; /* haven't written anything yet */
211 /* parse and print the whole format string */
212 u_printf_parse(&g_stream_handler, patternSpecification, f, NULL, &f->str.fBundle, &written, ap);
214 /* return # of UChars written */
218 #endif /* #if !UCONFIG_NO_FORMATTING */