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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
******************************************************************************
*
* Copyright (C) 1998-2014, International Business Machines
* Corporation and others. All Rights Reserved.
*
******************************************************************************
*
* File uprintf.cpp
*
* Modification History:
*
* Date Name Description
* 11/19/98 stephen Creation.
* 03/12/99 stephen Modified for new C API.
* Added conversion from default codepage.
* 08/07/2003 george Reunify printf implementations
******************************************************************************
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING && !UCONFIG_NO_CONVERSION
#include "unicode/ustdio.h"
#include "unicode/ustring.h"
#include "unicode/unum.h"
#include "unicode/udat.h"
#include "unicode/putil.h"
#include "cmemory.h"
#include "locbund.h"
#include "mutex.h"
#include "uassert.h"
#include "uprintf.h"
#include "ufile.h"
#include "ucln_io.h"
U_NAMESPACE_USE
static UFILE *gStdOut = nullptr;
static UInitOnce gStdOutInitOnce {};
static UBool U_CALLCONV uprintf_cleanup()
{
if (gStdOut != nullptr) {
u_fclose(gStdOut);
gStdOut = nullptr;
}
gStdOutInitOnce.reset();
return true;
}
static void U_CALLCONV u_stdout_init() {
U_ASSERT(gStdOut == nullptr);
gStdOut = u_finit(stdout, nullptr, nullptr);
ucln_io_registerCleanup(UCLN_IO_PRINTF, &uprintf_cleanup);
}
U_CAPI UFILE * U_EXPORT2
u_get_stdout()
{
umtx_initOnce(gStdOutInitOnce, &u_stdout_init);
return gStdOut;
}
static int32_t U_EXPORT2
u_printf_write(void *context,
const char16_t *str,
int32_t count)
{
return u_file_write(str, count, static_cast<UFILE*>(context));
}
static int32_t
u_printf_pad_and_justify(void *context,
const u_printf_spec_info *info,
const char16_t *result,
int32_t resultLen)
{
UFILE* output = static_cast<UFILE*>(context);
int32_t written, i;
/* pad and justify, if needed */
if(info->fWidth != -1 && resultLen < info->fWidth) {
/* left justify */
if(info->fLeft) {
written = u_file_write(result, resultLen, output);
for(i = 0; i < info->fWidth - resultLen; ++i) {
written += u_file_write(&info->fPadChar, 1, output);
}
}
/* right justify */
else {
written = 0;
for(i = 0; i < info->fWidth - resultLen; ++i) {
written += u_file_write(&info->fPadChar, 1, output);
}
written += u_file_write(result, resultLen, output);
}
}
/* just write the formatted output */
else {
written = u_file_write(result, resultLen, output);
}
return written;
}
U_CAPI int32_t U_EXPORT2
u_fprintf( UFILE *f,
const char *patternSpecification,
... )
{
va_list ap;
int32_t count;
va_start(ap, patternSpecification);
count = u_vfprintf(f, patternSpecification, ap);
va_end(ap);
return count;
}
U_CAPI int32_t U_EXPORT2
u_printf(const char *patternSpecification,
...)
{
va_list ap;
int32_t count;
va_start(ap, patternSpecification);
count = u_vfprintf(u_get_stdout(), patternSpecification, ap);
va_end(ap);
return count;
}
U_CAPI int32_t U_EXPORT2
u_fprintf_u( UFILE *f,
const char16_t *patternSpecification,
... )
{
va_list ap;
int32_t count;
va_start(ap, patternSpecification);
count = u_vfprintf_u(f, patternSpecification, ap);
va_end(ap);
return count;
}
U_CAPI int32_t U_EXPORT2
u_printf_u(const char16_t *patternSpecification,
...)
{
va_list ap;
int32_t count;
va_start(ap, patternSpecification);
count = u_vfprintf_u(u_get_stdout(), patternSpecification, ap);
va_end(ap);
return count;
}
U_CAPI int32_t U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
u_vfprintf( UFILE *f,
const char *patternSpecification,
va_list ap)
{
int32_t count;
char16_t *pattern;
char16_t buffer[UFMT_DEFAULT_BUFFER_SIZE];
size_t size = strlen(patternSpecification) + 1;
/* convert from the default codepage to Unicode */
if (size >= MAX_UCHAR_BUFFER_SIZE(buffer)) {
pattern = (char16_t *)uprv_malloc(size * sizeof(char16_t));
if (pattern == nullptr) {
return 0;
}
}
else {
pattern = buffer;
}
u_charsToUChars(patternSpecification, pattern, static_cast<int32_t>(size));
/* do the work */
count = u_vfprintf_u(f, pattern, ap);
/* clean up */
if (pattern != buffer) {
uprv_free(pattern);
}
return count;
}
static const u_printf_stream_handler g_stream_handler = {
u_printf_write,
u_printf_pad_and_justify
};
U_CAPI int32_t U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
u_vfprintf_u( UFILE *f,
const char16_t *patternSpecification,
va_list ap)
{
int32_t written = 0; /* haven't written anything yet */
/* parse and print the whole format string */
u_printf_parse(&g_stream_handler, patternSpecification, f, nullptr, &f->str.fBundle, &written, ap);
/* return # of UChars written */
return written;
}
#endif /* #if !UCONFIG_NO_FORMATTING */
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