Index: icu46/source/io/sprintf.c |
=================================================================== |
--- icu46/source/io/sprintf.c (revision 0) |
+++ icu46/source/io/sprintf.c (revision 0) |
@@ -0,0 +1,260 @@ |
+/* |
+****************************************************************************** |
+* |
+* Copyright (C) 2001-2008, International Business Machines |
+* Corporation and others. All Rights Reserved. |
+* |
+****************************************************************************** |
+* |
+* File sprintf.c |
+* |
+* Modification History: |
+* |
+* Date Name Description |
+* 02/08/2001 george Creation. Copied from uprintf.c |
+* 03/27/2002 Mark Schneckloth Many fixes regarding alignment, null termination |
+* (mschneckloth@atomz.com) and other various problems. |
+* 08/07/2003 george Reunify printf implementations |
+******************************************************************************* |
+*/ |
+ |
+#include "unicode/utypes.h" |
+ |
+#if !UCONFIG_NO_FORMATTING |
+ |
+#include "unicode/ustdio.h" |
+#include "unicode/ustring.h" |
+#include "unicode/putil.h" |
+ |
+#include "uprintf.h" |
+#include "locbund.h" |
+ |
+#include "cmemory.h" |
+#include <ctype.h> |
+ |
+/* u_minstrncpy copies the minimum number of code units of (count or output->available) */ |
+static int32_t |
+u_sprintf_write(void *context, |
+ const UChar *str, |
+ int32_t count) |
+{ |
+ u_localized_print_string *output = (u_localized_print_string *)context; |
+ int32_t size = ufmt_min(count, output->available); |
+ |
+ u_strncpy(output->str + (output->len - output->available), str, size); |
+ output->available -= size; |
+ return size; |
+} |
+ |
+static int32_t |
+u_sprintf_pad_and_justify(void *context, |
+ const u_printf_spec_info *info, |
+ const UChar *result, |
+ int32_t resultLen) |
+{ |
+ u_localized_print_string *output = (u_localized_print_string *)context; |
+ int32_t written = 0; |
+ int32_t lengthOfResult = resultLen; |
+ |
+ resultLen = ufmt_min(resultLen, output->available); |
+ |
+ /* pad and justify, if needed */ |
+ if(info->fWidth != -1 && resultLen < info->fWidth) { |
+ int32_t paddingLeft = info->fWidth - resultLen; |
+ int32_t outputPos = output->len - output->available; |
+ |
+ if (paddingLeft + resultLen > output->available) { |
+ paddingLeft = output->available - resultLen; |
+ if (paddingLeft < 0) { |
+ paddingLeft = 0; |
+ } |
+ /* paddingLeft = output->available - resultLen;*/ |
+ } |
+ written += paddingLeft; |
+ |
+ /* left justify */ |
+ if(info->fLeft) { |
+ written += u_sprintf_write(output, result, resultLen); |
+ u_memset(&output->str[outputPos + resultLen], info->fPadChar, paddingLeft); |
+ output->available -= paddingLeft; |
+ } |
+ /* right justify */ |
+ else { |
+ u_memset(&output->str[outputPos], info->fPadChar, paddingLeft); |
+ output->available -= paddingLeft; |
+ written += u_sprintf_write(output, result, resultLen); |
+ } |
+ } |
+ /* just write the formatted output */ |
+ else { |
+ written = u_sprintf_write(output, result, resultLen); |
+ } |
+ |
+ if (written >= 0 && lengthOfResult > written) { |
+ return lengthOfResult; |
+ } |
+ |
+ return written; |
+} |
+ |
+U_CAPI int32_t U_EXPORT2 |
+u_sprintf(UChar *buffer, |
+ const char *patternSpecification, |
+ ... ) |
+{ |
+ va_list ap; |
+ int32_t written; |
+ |
+ va_start(ap, patternSpecification); |
+ written = u_vsnprintf(buffer, INT32_MAX, patternSpecification, ap); |
+ va_end(ap); |
+ |
+ return written; |
+} |
+ |
+U_CAPI int32_t U_EXPORT2 |
+u_sprintf_u(UChar *buffer, |
+ const UChar *patternSpecification, |
+ ... ) |
+{ |
+ va_list ap; |
+ int32_t written; |
+ |
+ va_start(ap, patternSpecification); |
+ written = u_vsnprintf_u(buffer, INT32_MAX, patternSpecification, ap); |
+ va_end(ap); |
+ |
+ return written; |
+} |
+ |
+U_CAPI int32_t U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */ |
+u_vsprintf(UChar *buffer, |
+ const char *patternSpecification, |
+ va_list ap) |
+{ |
+ return u_vsnprintf(buffer, INT32_MAX, patternSpecification, ap); |
+} |
+ |
+U_CAPI int32_t U_EXPORT2 |
+u_snprintf(UChar *buffer, |
+ int32_t count, |
+ const char *patternSpecification, |
+ ... ) |
+{ |
+ va_list ap; |
+ int32_t written; |
+ |
+ va_start(ap, patternSpecification); |
+ written = u_vsnprintf(buffer, count, patternSpecification, ap); |
+ va_end(ap); |
+ |
+ return written; |
+} |
+ |
+U_CAPI int32_t U_EXPORT2 |
+u_snprintf_u(UChar *buffer, |
+ int32_t count, |
+ const UChar *patternSpecification, |
+ ... ) |
+{ |
+ va_list ap; |
+ int32_t written; |
+ |
+ va_start(ap, patternSpecification); |
+ written = u_vsnprintf_u(buffer, count, patternSpecification, ap); |
+ va_end(ap); |
+ |
+ return written; |
+} |
+ |
+U_CAPI int32_t U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */ |
+u_vsnprintf(UChar *buffer, |
+ int32_t count, |
+ const char *patternSpecification, |
+ va_list ap) |
+{ |
+ int32_t written; |
+ UChar *pattern; |
+ UChar patBuffer[UFMT_DEFAULT_BUFFER_SIZE]; |
+ int32_t size = (int32_t)strlen(patternSpecification) + 1; |
+ |
+ /* convert from the default codepage to Unicode */ |
+ if (size >= MAX_UCHAR_BUFFER_SIZE(patBuffer)) { |
+ pattern = (UChar *)uprv_malloc(size * sizeof(UChar)); |
+ if(pattern == 0) { |
+ return 0; |
+ } |
+ } |
+ else { |
+ pattern = patBuffer; |
+ } |
+ u_charsToUChars(patternSpecification, pattern, size); |
+ |
+ /* do the work */ |
+ written = u_vsnprintf_u(buffer, count, pattern, ap); |
+ |
+ /* clean up */ |
+ if (pattern != patBuffer) { |
+ uprv_free(pattern); |
+ } |
+ |
+ return written; |
+} |
+ |
+U_CAPI int32_t U_EXPORT2 |
+u_vsprintf_u(UChar *buffer, |
+ const UChar *patternSpecification, |
+ va_list ap) |
+{ |
+ return u_vsnprintf_u(buffer, INT32_MAX, patternSpecification, ap); |
+} |
+ |
+static const u_printf_stream_handler g_sprintf_stream_handler = { |
+ u_sprintf_write, |
+ u_sprintf_pad_and_justify |
+}; |
+ |
+U_CAPI int32_t U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */ |
+u_vsnprintf_u(UChar *buffer, |
+ int32_t count, |
+ const UChar *patternSpecification, |
+ va_list ap) |
+{ |
+ int32_t written = 0; /* haven't written anything yet */ |
+ int32_t result = 0; /* test the return value of u_printf_parse */ |
+ |
+ u_localized_print_string outStr; |
+ |
+ if (count < 0) { |
+ count = INT32_MAX; |
+ } |
+ |
+ outStr.str = buffer; |
+ outStr.len = count; |
+ outStr.available = count; |
+ |
+ if(u_locbund_init(&outStr.fBundle, "en_US_POSIX") == 0) { |
+ return 0; |
+ } |
+ |
+ /* parse and print the whole format string */ |
+ result = u_printf_parse(&g_sprintf_stream_handler, patternSpecification, &outStr, &outStr, &outStr.fBundle, &written, ap); |
+ |
+ /* Terminate the buffer, if there's room. */ |
+ if (outStr.available > 0) { |
+ buffer[outStr.len - outStr.available] = 0x0000; |
+ } |
+ |
+ /* Release the cloned bundle, if we cloned it. */ |
+ u_locbund_close(&outStr.fBundle); |
+ |
+ /* parsing error */ |
+ if (result < 0) { |
+ return result; |
+ } |
+ /* return # of UChars written */ |
+ return written; |
+} |
+ |
+#endif /* #if !UCONFIG_NO_FORMATTING */ |
+ |
Property changes on: icu46/source/io/sprintf.c |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |