1607 lines
52 KiB
C++
1607 lines
52 KiB
C++
// © 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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******************************************************************************
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*
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* Copyright (C) 1998-2016, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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******************************************************************************
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*
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* File uprntf_p.c
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*
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* Modification History:
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*
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* Date Name Description
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* 11/23/98 stephen Creation.
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* 03/12/99 stephen Modified for new C API.
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* 08/07/2003 george Reunify printf implementations
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******************************************************************************
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*/
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING && !UCONFIG_NO_CONVERSION
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#include "unicode/ustring.h"
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#include "unicode/utf16.h"
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#include "uprintf.h"
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#include "ufmt_cmn.h"
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#include "cmemory.h"
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#include "putilimp.h"
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/* ANSI style formatting */
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/* Use US-ASCII characters only for formatting */
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/* % */
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#define UFMT_SIMPLE_PERCENT {ufmt_simple_percent, u_printf_simple_percent_handler}
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/* s */
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#define UFMT_STRING {ufmt_string, u_printf_string_handler}
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/* c */
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#define UFMT_CHAR {ufmt_char, u_printf_char_handler}
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/* d, i */
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#define UFMT_INT {ufmt_int, u_printf_integer_handler}
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/* u */
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#define UFMT_UINT {ufmt_int, u_printf_uinteger_handler}
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/* o */
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#define UFMT_OCTAL {ufmt_int, u_printf_octal_handler}
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/* x, X */
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#define UFMT_HEX {ufmt_int, u_printf_hex_handler}
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/* f */
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#define UFMT_DOUBLE {ufmt_double, u_printf_double_handler}
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/* e, E */
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#define UFMT_SCIENTIFIC {ufmt_double, u_printf_scientific_handler}
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/* g, G */
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#define UFMT_SCIDBL {ufmt_double, u_printf_scidbl_handler}
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/* n */
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#define UFMT_COUNT {ufmt_count, u_printf_count_handler}
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/* non-ANSI extensions */
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/* Use US-ASCII characters only for formatting */
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/* p */
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#define UFMT_POINTER {ufmt_pointer, u_printf_pointer_handler}
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/* V */
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#define UFMT_SPELLOUT {ufmt_double, u_printf_spellout_handler}
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/* P */
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#define UFMT_PERCENT {ufmt_double, u_printf_percent_handler}
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/* C K is old format */
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#define UFMT_UCHAR {ufmt_uchar, u_printf_uchar_handler}
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/* S U is old format */
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#define UFMT_USTRING {ufmt_ustring, u_printf_ustring_handler}
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#define UFMT_EMPTY {ufmt_empty, NULL}
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/**
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* A u_printf handler function.
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* A u_printf handler is responsible for handling a single u_printf
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* format specification, for example 'd' or 's'.
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* @param stream The UFILE to which to write output.
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* @param info A pointer to a <TT>u_printf_spec_info</TT> struct containing
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* information on the format specification.
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* @param args A pointer to the argument data
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* @return The number of Unicode characters written to <TT>stream</TT>.
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*/
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typedef int32_t U_EXPORT2
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u_printf_handler(const u_printf_stream_handler *handler,
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void *context,
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ULocaleBundle *formatBundle,
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const u_printf_spec_info *info,
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const ufmt_args *args);
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typedef struct u_printf_info {
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ufmt_type_info info;
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u_printf_handler *handler;
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} u_printf_info;
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/**
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* Struct encapsulating a single uprintf format specification.
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*/
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typedef struct u_printf_spec {
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u_printf_spec_info fInfo; /* Information on this spec */
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int32_t fWidthPos; /* Position of width in arg list */
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int32_t fPrecisionPos; /* Position of precision in arg list */
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int32_t fArgPos; /* Position of data in arg list */
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} u_printf_spec;
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#define UPRINTF_NUM_FMT_HANDLERS 108
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/* We do not use handlers for 0-0x1f */
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#define UPRINTF_BASE_FMT_HANDLERS 0x20
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/* buffer size for formatting */
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#define UPRINTF_BUFFER_SIZE 1024
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#define UPRINTF_SYMBOL_BUFFER_SIZE 8
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static const UChar gNullStr[] = {0x28, 0x6E, 0x75, 0x6C, 0x6C, 0x29, 0}; /* "(null)" */
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static const UChar gSpaceStr[] = {0x20, 0}; /* " " */
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/* Sets the sign of a format based on u_printf_spec_info */
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/* TODO: Is setting the prefix symbol to a positive sign a good idea in all locales? */
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static void
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u_printf_set_sign(UNumberFormat *format,
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const u_printf_spec_info *info,
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UChar *prefixBuffer,
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int32_t *prefixBufLen,
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UErrorCode *status)
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{
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if(info->fShowSign) {
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*prefixBufLen = unum_getTextAttribute(format,
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UNUM_POSITIVE_PREFIX,
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prefixBuffer,
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*prefixBufLen,
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status);
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if (info->fSpace) {
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/* Setting UNUM_PLUS_SIGN_SYMBOL affects the exponent too. */
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/* unum_setSymbol(format, UNUM_PLUS_SIGN_SYMBOL, gSpaceStr, 1, &status); */
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unum_setTextAttribute(format, UNUM_POSITIVE_PREFIX, gSpaceStr, 1, status);
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}
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else {
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UChar plusSymbol[UPRINTF_SYMBOL_BUFFER_SIZE];
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int32_t symbolLen;
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symbolLen = unum_getSymbol(format,
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UNUM_PLUS_SIGN_SYMBOL,
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plusSymbol,
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UPRV_LENGTHOF(plusSymbol),
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status);
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unum_setTextAttribute(format,
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UNUM_POSITIVE_PREFIX,
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plusSymbol,
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symbolLen,
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status);
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}
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}
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else {
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*prefixBufLen = 0;
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}
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}
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static void
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u_printf_reset_sign(UNumberFormat *format,
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const u_printf_spec_info *info,
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UChar *prefixBuffer,
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int32_t *prefixBufLen,
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UErrorCode *status)
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{
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if(info->fShowSign) {
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unum_setTextAttribute(format,
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UNUM_POSITIVE_PREFIX,
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prefixBuffer,
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*prefixBufLen,
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status);
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}
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}
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/* handle a '%' */
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static int32_t
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u_printf_simple_percent_handler(const u_printf_stream_handler *handler,
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void *context,
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ULocaleBundle *formatBundle,
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const u_printf_spec_info *info,
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const ufmt_args *args)
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{
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(void)formatBundle;
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(void)info;
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(void)args;
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static const UChar PERCENT[] = { UP_PERCENT };
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/* put a single '%' onto the output */
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return handler->write(context, PERCENT, 1);
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}
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/* handle 's' */
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static int32_t
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u_printf_string_handler(const u_printf_stream_handler *handler,
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void *context,
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ULocaleBundle *formatBundle,
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const u_printf_spec_info *info,
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const ufmt_args *args)
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{
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(void)formatBundle;
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UChar *s;
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UChar buffer[UFMT_DEFAULT_BUFFER_SIZE];
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int32_t len, written;
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int32_t argSize;
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const char *arg = (const char*)(args[0].ptrValue);
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/* convert from the default codepage to Unicode */
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if (arg) {
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argSize = (int32_t)strlen(arg) + 1;
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if (argSize >= MAX_UCHAR_BUFFER_SIZE(buffer)) {
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s = ufmt_defaultCPToUnicode(arg, argSize,
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(UChar *)uprv_malloc(MAX_UCHAR_BUFFER_NEEDED(argSize)),
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MAX_UCHAR_BUFFER_NEEDED(argSize));
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if(s == NULL) {
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return 0;
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}
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}
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else {
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s = ufmt_defaultCPToUnicode(arg, argSize, buffer,
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UPRV_LENGTHOF(buffer));
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}
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}
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else {
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s = (UChar *)gNullStr;
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}
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len = u_strlen(s);
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/* width = minimum # of characters to write */
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/* precision = maximum # of characters to write */
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if (info->fPrecision != -1 && info->fPrecision < len) {
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len = info->fPrecision;
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}
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written = handler->pad_and_justify(context, info, s, len);
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/* clean up */
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if (gNullStr != s && buffer != s) {
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uprv_free(s);
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}
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return written;
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}
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static int32_t
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u_printf_char_handler(const u_printf_stream_handler *handler,
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void *context,
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ULocaleBundle *formatBundle,
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const u_printf_spec_info *info,
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const ufmt_args *args)
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{
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(void)formatBundle;
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UChar s[U16_MAX_LENGTH+1];
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int32_t len = 1, written;
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unsigned char arg = (unsigned char)(args[0].int64Value);
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/* convert from default codepage to Unicode */
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ufmt_defaultCPToUnicode((const char *)&arg, 2, s, UPRV_LENGTHOF(s));
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/* Remember that this may be an MBCS character */
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if (arg != 0) {
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len = u_strlen(s);
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}
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/* width = minimum # of characters to write */
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/* precision = maximum # of characters to write */
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/* precision is ignored when handling a char */
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written = handler->pad_and_justify(context, info, s, len);
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return written;
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}
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static int32_t
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u_printf_double_handler(const u_printf_stream_handler *handler,
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void *context,
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ULocaleBundle *formatBundle,
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const u_printf_spec_info *info,
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const ufmt_args *args)
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{
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double num = (double) (args[0].doubleValue);
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UNumberFormat *format;
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UChar result[UPRINTF_BUFFER_SIZE];
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UChar prefixBuffer[UPRINTF_BUFFER_SIZE];
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int32_t prefixBufferLen = sizeof(prefixBuffer);
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int32_t minDecimalDigits;
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int32_t maxDecimalDigits;
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int32_t resultLen;
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UErrorCode status = U_ZERO_ERROR;
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prefixBuffer[0] = 0;
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/* mask off any necessary bits */
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/* if(! info->fIsLongDouble)
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num &= DBL_MAX;*/
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/* get the formatter */
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format = u_locbund_getNumberFormat(formatBundle, UNUM_DECIMAL);
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/* handle error */
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if(format == 0)
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return 0;
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/* save the formatter's state */
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minDecimalDigits = unum_getAttribute(format, UNUM_MIN_FRACTION_DIGITS);
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maxDecimalDigits = unum_getAttribute(format, UNUM_MAX_FRACTION_DIGITS);
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/* set the appropriate flags and number of decimal digits on the formatter */
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if(info->fPrecision != -1) {
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/* set the # of decimal digits */
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unum_setAttribute(format, UNUM_FRACTION_DIGITS, info->fPrecision);
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}
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else if(info->fAlt) {
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/* '#' means always show decimal point */
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/* copy of printf behavior on Solaris - '#' shows 6 digits */
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unum_setAttribute(format, UNUM_FRACTION_DIGITS, 6);
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}
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else {
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/* # of decimal digits is 6 if precision not specified regardless of locale */
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unum_setAttribute(format, UNUM_FRACTION_DIGITS, 6);
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}
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/* set whether to show the sign */
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if (info->fShowSign) {
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u_printf_set_sign(format, info, prefixBuffer, &prefixBufferLen, &status);
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}
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/* format the number */
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resultLen = unum_formatDouble(format, num, result, UPRINTF_BUFFER_SIZE, 0, &status);
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if (U_FAILURE(status)) {
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resultLen = 0;
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}
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/* restore the number format */
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/* TODO: Is this needed? */
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unum_setAttribute(format, UNUM_MIN_FRACTION_DIGITS, minDecimalDigits);
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unum_setAttribute(format, UNUM_MAX_FRACTION_DIGITS, maxDecimalDigits);
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if (info->fShowSign) {
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/* Reset back to original value regardless of what the error was */
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UErrorCode localStatus = U_ZERO_ERROR;
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u_printf_reset_sign(format, info, prefixBuffer, &prefixBufferLen, &localStatus);
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}
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return handler->pad_and_justify(context, info, result, resultLen);
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}
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/* HSYS */
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static int32_t
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u_printf_integer_handler(const u_printf_stream_handler *handler,
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void *context,
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ULocaleBundle *formatBundle,
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const u_printf_spec_info *info,
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const ufmt_args *args)
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{
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int64_t num = args[0].int64Value;
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UNumberFormat *format;
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UChar result[UPRINTF_BUFFER_SIZE];
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UChar prefixBuffer[UPRINTF_BUFFER_SIZE];
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int32_t prefixBufferLen = sizeof(prefixBuffer);
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int32_t minDigits = -1;
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int32_t resultLen;
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UErrorCode status = U_ZERO_ERROR;
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prefixBuffer[0] = 0;
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/* mask off any necessary bits */
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if (info->fIsShort)
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num = (int16_t)num;
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else if (!info->fIsLongLong)
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num = (int32_t)num;
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/* get the formatter */
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format = u_locbund_getNumberFormat(formatBundle, UNUM_DECIMAL);
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/* handle error */
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if(format == 0)
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return 0;
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/* set the appropriate flags on the formatter */
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/* set the minimum integer digits */
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if(info->fPrecision != -1) {
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/* set the minimum # of digits */
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minDigits = unum_getAttribute(format, UNUM_MIN_INTEGER_DIGITS);
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unum_setAttribute(format, UNUM_MIN_INTEGER_DIGITS, info->fPrecision);
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}
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/* set whether to show the sign */
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if(info->fShowSign) {
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u_printf_set_sign(format, info, prefixBuffer, &prefixBufferLen, &status);
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}
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/* format the number */
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resultLen = unum_formatInt64(format, num, result, UPRINTF_BUFFER_SIZE, 0, &status);
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if (U_FAILURE(status)) {
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resultLen = 0;
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}
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/* restore the number format */
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if (minDigits != -1) {
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unum_setAttribute(format, UNUM_MIN_INTEGER_DIGITS, minDigits);
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}
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if (info->fShowSign) {
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/* Reset back to original value regardless of what the error was */
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UErrorCode localStatus = U_ZERO_ERROR;
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u_printf_reset_sign(format, info, prefixBuffer, &prefixBufferLen, &localStatus);
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}
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return handler->pad_and_justify(context, info, result, resultLen);
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}
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static int32_t
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u_printf_hex_handler(const u_printf_stream_handler *handler,
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void *context,
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ULocaleBundle *formatBundle,
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const u_printf_spec_info *info,
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const ufmt_args *args)
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{
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(void)formatBundle;
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int64_t num = args[0].int64Value;
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UChar result[UPRINTF_BUFFER_SIZE];
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int32_t len = UPRINTF_BUFFER_SIZE;
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/* mask off any necessary bits */
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if (info->fIsShort)
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num &= UINT16_MAX;
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else if (!info->fIsLongLong)
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num &= UINT32_MAX;
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/* format the number, preserving the minimum # of digits */
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ufmt_64tou(result, &len, num, 16,
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(UBool)(info->fSpec == 0x0078),
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(info->fPrecision == -1 && info->fZero) ? info->fWidth : info->fPrecision);
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/* convert to alt form, if desired */
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if(num != 0 && info->fAlt && len < UPRINTF_BUFFER_SIZE - 2) {
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/* shift the formatted string right by 2 chars */
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memmove(result + 2, result, len * sizeof(UChar));
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result[0] = 0x0030;
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result[1] = info->fSpec;
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len += 2;
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}
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return handler->pad_and_justify(context, info, result, len);
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}
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static int32_t
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u_printf_octal_handler(const u_printf_stream_handler *handler,
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void *context,
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ULocaleBundle *formatBundle,
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const u_printf_spec_info *info,
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const ufmt_args *args)
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{
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(void)formatBundle;
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int64_t num = args[0].int64Value;
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UChar result[UPRINTF_BUFFER_SIZE];
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int32_t len = UPRINTF_BUFFER_SIZE;
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/* mask off any necessary bits */
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if (info->fIsShort)
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num &= UINT16_MAX;
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else if (!info->fIsLongLong)
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num &= UINT32_MAX;
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/* format the number, preserving the minimum # of digits */
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ufmt_64tou(result, &len, num, 8,
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FALSE, /* doesn't matter for octal */
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info->fPrecision == -1 && info->fZero ? info->fWidth : info->fPrecision);
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/* convert to alt form, if desired */
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if(info->fAlt && result[0] != 0x0030 && len < UPRINTF_BUFFER_SIZE - 1) {
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/* shift the formatted string right by 1 char */
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memmove(result + 1, result, len * sizeof(UChar));
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result[0] = 0x0030;
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len += 1;
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}
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return handler->pad_and_justify(context, info, result, len);
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}
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static int32_t
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u_printf_uinteger_handler(const u_printf_stream_handler *handler,
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void *context,
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ULocaleBundle *formatBundle,
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const u_printf_spec_info *info,
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const ufmt_args *args)
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{
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int64_t num = args[0].int64Value;
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UNumberFormat *format;
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UChar result[UPRINTF_BUFFER_SIZE];
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int32_t minDigits = -1;
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int32_t resultLen;
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UErrorCode status = U_ZERO_ERROR;
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/* TODO: Fix this once uint64_t can be formatted. */
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if (info->fIsShort)
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num &= UINT16_MAX;
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else if (!info->fIsLongLong)
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num &= UINT32_MAX;
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/* get the formatter */
|
|
format = u_locbund_getNumberFormat(formatBundle, UNUM_DECIMAL);
|
|
|
|
/* handle error */
|
|
if(format == 0)
|
|
return 0;
|
|
|
|
/* set the appropriate flags on the formatter */
|
|
|
|
/* set the minimum integer digits */
|
|
if(info->fPrecision != -1) {
|
|
/* set the minimum # of digits */
|
|
minDigits = unum_getAttribute(format, UNUM_MIN_INTEGER_DIGITS);
|
|
unum_setAttribute(format, UNUM_MIN_INTEGER_DIGITS, info->fPrecision);
|
|
}
|
|
|
|
/* To mirror other stdio implementations, we ignore the sign argument */
|
|
|
|
/* format the number */
|
|
resultLen = unum_formatInt64(format, num, result, UPRINTF_BUFFER_SIZE, 0, &status);
|
|
|
|
if (U_FAILURE(status)) {
|
|
resultLen = 0;
|
|
}
|
|
|
|
/* restore the number format */
|
|
if (minDigits != -1) {
|
|
unum_setAttribute(format, UNUM_MIN_INTEGER_DIGITS, minDigits);
|
|
}
|
|
|
|
return handler->pad_and_justify(context, info, result, resultLen);
|
|
}
|
|
|
|
static int32_t
|
|
u_printf_pointer_handler(const u_printf_stream_handler *handler,
|
|
void *context,
|
|
ULocaleBundle *formatBundle,
|
|
const u_printf_spec_info *info,
|
|
const ufmt_args *args)
|
|
{
|
|
(void)formatBundle;
|
|
UChar result[UPRINTF_BUFFER_SIZE];
|
|
int32_t len = UPRINTF_BUFFER_SIZE;
|
|
|
|
/* format the pointer in hex */
|
|
ufmt_ptou(result, &len, args[0].ptrValue, TRUE/*, info->fPrecision*/);
|
|
|
|
return handler->pad_and_justify(context, info, result, len);
|
|
}
|
|
|
|
static int32_t
|
|
u_printf_scientific_handler(const u_printf_stream_handler *handler,
|
|
void *context,
|
|
ULocaleBundle *formatBundle,
|
|
const u_printf_spec_info *info,
|
|
const ufmt_args *args)
|
|
{
|
|
double num = (double) (args[0].doubleValue);
|
|
UNumberFormat *format;
|
|
UChar result[UPRINTF_BUFFER_SIZE];
|
|
UChar prefixBuffer[UPRINTF_BUFFER_SIZE];
|
|
int32_t prefixBufferLen = sizeof(prefixBuffer);
|
|
int32_t minDecimalDigits;
|
|
int32_t maxDecimalDigits;
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
UChar srcExpBuf[UPRINTF_SYMBOL_BUFFER_SIZE];
|
|
int32_t srcLen, expLen;
|
|
int32_t resultLen;
|
|
UChar expBuf[UPRINTF_SYMBOL_BUFFER_SIZE];
|
|
|
|
prefixBuffer[0] = 0;
|
|
|
|
/* mask off any necessary bits */
|
|
/* if(! info->fIsLongDouble)
|
|
num &= DBL_MAX;*/
|
|
|
|
/* get the formatter */
|
|
format = u_locbund_getNumberFormat(formatBundle, UNUM_SCIENTIFIC);
|
|
|
|
/* handle error */
|
|
if(format == 0)
|
|
return 0;
|
|
|
|
/* set the appropriate flags on the formatter */
|
|
|
|
srcLen = unum_getSymbol(format,
|
|
UNUM_EXPONENTIAL_SYMBOL,
|
|
srcExpBuf,
|
|
sizeof(srcExpBuf),
|
|
&status);
|
|
|
|
/* Upper/lower case the e */
|
|
if (info->fSpec == (UChar)0x65 /* e */) {
|
|
expLen = u_strToLower(expBuf, (int32_t)sizeof(expBuf),
|
|
srcExpBuf, srcLen,
|
|
formatBundle->fLocale,
|
|
&status);
|
|
}
|
|
else {
|
|
expLen = u_strToUpper(expBuf, (int32_t)sizeof(expBuf),
|
|
srcExpBuf, srcLen,
|
|
formatBundle->fLocale,
|
|
&status);
|
|
}
|
|
|
|
unum_setSymbol(format,
|
|
UNUM_EXPONENTIAL_SYMBOL,
|
|
expBuf,
|
|
expLen,
|
|
&status);
|
|
|
|
/* save the formatter's state */
|
|
minDecimalDigits = unum_getAttribute(format, UNUM_MIN_FRACTION_DIGITS);
|
|
maxDecimalDigits = unum_getAttribute(format, UNUM_MAX_FRACTION_DIGITS);
|
|
|
|
/* set the appropriate flags and number of decimal digits on the formatter */
|
|
if(info->fPrecision != -1) {
|
|
/* set the # of decimal digits */
|
|
if (info->fOrigSpec == (UChar)0x65 /* e */ || info->fOrigSpec == (UChar)0x45 /* E */) {
|
|
unum_setAttribute(format, UNUM_FRACTION_DIGITS, info->fPrecision);
|
|
}
|
|
else {
|
|
unum_setAttribute(format, UNUM_MIN_FRACTION_DIGITS, 1);
|
|
unum_setAttribute(format, UNUM_MAX_FRACTION_DIGITS, info->fPrecision);
|
|
}
|
|
}
|
|
else if(info->fAlt) {
|
|
/* '#' means always show decimal point */
|
|
/* copy of printf behavior on Solaris - '#' shows 6 digits */
|
|
unum_setAttribute(format, UNUM_FRACTION_DIGITS, 6);
|
|
}
|
|
else {
|
|
/* # of decimal digits is 6 if precision not specified */
|
|
unum_setAttribute(format, UNUM_FRACTION_DIGITS, 6);
|
|
}
|
|
|
|
/* set whether to show the sign */
|
|
if (info->fShowSign) {
|
|
u_printf_set_sign(format, info, prefixBuffer, &prefixBufferLen, &status);
|
|
}
|
|
|
|
/* format the number */
|
|
resultLen = unum_formatDouble(format, num, result, UPRINTF_BUFFER_SIZE, 0, &status);
|
|
|
|
if (U_FAILURE(status)) {
|
|
resultLen = 0;
|
|
}
|
|
|
|
/* restore the number format */
|
|
/* TODO: Is this needed? */
|
|
unum_setAttribute(format, UNUM_MIN_FRACTION_DIGITS, minDecimalDigits);
|
|
unum_setAttribute(format, UNUM_MAX_FRACTION_DIGITS, maxDecimalDigits);
|
|
|
|
/* Since we're the only one using the scientific
|
|
format, we don't need to save the old exponent value. */
|
|
/*unum_setSymbol(format,
|
|
UNUM_EXPONENTIAL_SYMBOL,
|
|
srcExpBuf,
|
|
srcLen,
|
|
&status);*/
|
|
|
|
if (info->fShowSign) {
|
|
/* Reset back to original value regardless of what the error was */
|
|
UErrorCode localStatus = U_ZERO_ERROR;
|
|
u_printf_reset_sign(format, info, prefixBuffer, &prefixBufferLen, &localStatus);
|
|
}
|
|
|
|
return handler->pad_and_justify(context, info, result, resultLen);
|
|
}
|
|
|
|
static int32_t
|
|
u_printf_percent_handler(const u_printf_stream_handler *handler,
|
|
void *context,
|
|
ULocaleBundle *formatBundle,
|
|
const u_printf_spec_info *info,
|
|
const ufmt_args *args)
|
|
{
|
|
double num = (double) (args[0].doubleValue);
|
|
UNumberFormat *format;
|
|
UChar result[UPRINTF_BUFFER_SIZE];
|
|
UChar prefixBuffer[UPRINTF_BUFFER_SIZE];
|
|
int32_t prefixBufferLen = sizeof(prefixBuffer);
|
|
int32_t minDecimalDigits;
|
|
int32_t maxDecimalDigits;
|
|
int32_t resultLen;
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
|
|
prefixBuffer[0] = 0;
|
|
|
|
/* mask off any necessary bits */
|
|
/* if(! info->fIsLongDouble)
|
|
num &= DBL_MAX;*/
|
|
|
|
/* get the formatter */
|
|
format = u_locbund_getNumberFormat(formatBundle, UNUM_PERCENT);
|
|
|
|
/* handle error */
|
|
if(format == 0)
|
|
return 0;
|
|
|
|
/* save the formatter's state */
|
|
minDecimalDigits = unum_getAttribute(format, UNUM_MIN_FRACTION_DIGITS);
|
|
maxDecimalDigits = unum_getAttribute(format, UNUM_MAX_FRACTION_DIGITS);
|
|
|
|
/* set the appropriate flags and number of decimal digits on the formatter */
|
|
if(info->fPrecision != -1) {
|
|
/* set the # of decimal digits */
|
|
unum_setAttribute(format, UNUM_FRACTION_DIGITS, info->fPrecision);
|
|
}
|
|
else if(info->fAlt) {
|
|
/* '#' means always show decimal point */
|
|
/* copy of printf behavior on Solaris - '#' shows 6 digits */
|
|
unum_setAttribute(format, UNUM_FRACTION_DIGITS, 6);
|
|
}
|
|
else {
|
|
/* # of decimal digits is 6 if precision not specified */
|
|
unum_setAttribute(format, UNUM_FRACTION_DIGITS, 6);
|
|
}
|
|
|
|
/* set whether to show the sign */
|
|
if (info->fShowSign) {
|
|
u_printf_set_sign(format, info, prefixBuffer, &prefixBufferLen, &status);
|
|
}
|
|
|
|
/* format the number */
|
|
resultLen = unum_formatDouble(format, num, result, UPRINTF_BUFFER_SIZE, 0, &status);
|
|
|
|
if (U_FAILURE(status)) {
|
|
resultLen = 0;
|
|
}
|
|
|
|
/* restore the number format */
|
|
/* TODO: Is this needed? */
|
|
unum_setAttribute(format, UNUM_MIN_FRACTION_DIGITS, minDecimalDigits);
|
|
unum_setAttribute(format, UNUM_MAX_FRACTION_DIGITS, maxDecimalDigits);
|
|
|
|
if (info->fShowSign) {
|
|
/* Reset back to original value regardless of what the error was */
|
|
UErrorCode localStatus = U_ZERO_ERROR;
|
|
u_printf_reset_sign(format, info, prefixBuffer, &prefixBufferLen, &localStatus);
|
|
}
|
|
|
|
return handler->pad_and_justify(context, info, result, resultLen);
|
|
}
|
|
|
|
static int32_t
|
|
u_printf_ustring_handler(const u_printf_stream_handler *handler,
|
|
void *context,
|
|
ULocaleBundle *formatBundle,
|
|
const u_printf_spec_info *info,
|
|
const ufmt_args *args)
|
|
{
|
|
(void)formatBundle;
|
|
int32_t len, written;
|
|
const UChar *arg = (const UChar*)(args[0].ptrValue);
|
|
|
|
/* allocate enough space for the buffer */
|
|
if (arg == NULL) {
|
|
arg = gNullStr;
|
|
}
|
|
len = u_strlen(arg);
|
|
|
|
/* width = minimum # of characters to write */
|
|
/* precision = maximum # of characters to write */
|
|
if (info->fPrecision != -1 && info->fPrecision < len) {
|
|
len = info->fPrecision;
|
|
}
|
|
|
|
/* determine if the string should be padded */
|
|
written = handler->pad_and_justify(context, info, arg, len);
|
|
|
|
return written;
|
|
}
|
|
|
|
static int32_t
|
|
u_printf_uchar_handler(const u_printf_stream_handler *handler,
|
|
void *context,
|
|
ULocaleBundle *formatBundle,
|
|
const u_printf_spec_info *info,
|
|
const ufmt_args *args)
|
|
{
|
|
(void)formatBundle;
|
|
int32_t written = 0;
|
|
UChar arg = (UChar)(args[0].int64Value);
|
|
|
|
/* width = minimum # of characters to write */
|
|
/* precision = maximum # of characters to write */
|
|
/* precision is ignored when handling a uchar */
|
|
|
|
/* determine if the string should be padded */
|
|
written = handler->pad_and_justify(context, info, &arg, 1);
|
|
|
|
return written;
|
|
}
|
|
|
|
static int32_t
|
|
u_printf_scidbl_handler(const u_printf_stream_handler *handler,
|
|
void *context,
|
|
ULocaleBundle *formatBundle,
|
|
const u_printf_spec_info *info,
|
|
const ufmt_args *args)
|
|
{
|
|
u_printf_spec_info scidbl_info;
|
|
double num = args[0].doubleValue;
|
|
int32_t retVal;
|
|
UNumberFormat *format;
|
|
int32_t maxSigDecimalDigits, significantDigits;
|
|
|
|
memcpy(&scidbl_info, info, sizeof(u_printf_spec_info));
|
|
|
|
/* determine whether to use 'd', 'e' or 'f' notation */
|
|
if (scidbl_info.fPrecision == -1 && num == uprv_trunc(num))
|
|
{
|
|
/* use 'f' notation */
|
|
scidbl_info.fSpec = 0x0066;
|
|
scidbl_info.fPrecision = 0;
|
|
/* call the double handler */
|
|
retVal = u_printf_double_handler(handler, context, formatBundle, &scidbl_info, args);
|
|
}
|
|
else if(num < 0.0001 || (scidbl_info.fPrecision < 1 && 1000000.0 <= num)
|
|
|| (scidbl_info.fPrecision != -1 && num > uprv_pow10(scidbl_info.fPrecision)))
|
|
{
|
|
/* use 'e' or 'E' notation */
|
|
scidbl_info.fSpec = scidbl_info.fSpec - 2;
|
|
if (scidbl_info.fPrecision == -1) {
|
|
scidbl_info.fPrecision = 5;
|
|
}
|
|
/* call the scientific handler */
|
|
retVal = u_printf_scientific_handler(handler, context, formatBundle, &scidbl_info, args);
|
|
}
|
|
else {
|
|
format = u_locbund_getNumberFormat(formatBundle, UNUM_DECIMAL);
|
|
/* Check for null pointer */
|
|
if (format == NULL) {
|
|
return 0;
|
|
}
|
|
maxSigDecimalDigits = unum_getAttribute(format, UNUM_MAX_SIGNIFICANT_DIGITS);
|
|
significantDigits = scidbl_info.fPrecision;
|
|
|
|
/* use 'f' notation */
|
|
scidbl_info.fSpec = 0x0066;
|
|
if (significantDigits == -1) {
|
|
significantDigits = 6;
|
|
}
|
|
unum_setAttribute(format, UNUM_SIGNIFICANT_DIGITS_USED, TRUE);
|
|
unum_setAttribute(format, UNUM_MAX_SIGNIFICANT_DIGITS, significantDigits);
|
|
/* call the double handler */
|
|
retVal = u_printf_double_handler(handler, context, formatBundle, &scidbl_info, args);
|
|
unum_setAttribute(format, UNUM_MAX_SIGNIFICANT_DIGITS, maxSigDecimalDigits);
|
|
unum_setAttribute(format, UNUM_SIGNIFICANT_DIGITS_USED, FALSE);
|
|
}
|
|
return retVal;
|
|
}
|
|
|
|
static int32_t
|
|
u_printf_count_handler(const u_printf_stream_handler *handler,
|
|
void *context,
|
|
ULocaleBundle *formatBundle,
|
|
const u_printf_spec_info *info,
|
|
const ufmt_args *args)
|
|
{
|
|
(void)handler;
|
|
(void)context;
|
|
(void)formatBundle;
|
|
int32_t *count = (int32_t*)(args[0].ptrValue);
|
|
|
|
/* in the special case of count, the u_printf_spec_info's width */
|
|
/* will contain the # of chars written thus far */
|
|
*count = info->fWidth;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int32_t
|
|
u_printf_spellout_handler(const u_printf_stream_handler *handler,
|
|
void *context,
|
|
ULocaleBundle *formatBundle,
|
|
const u_printf_spec_info *info,
|
|
const ufmt_args *args)
|
|
{
|
|
double num = (double) (args[0].doubleValue);
|
|
UNumberFormat *format;
|
|
UChar result[UPRINTF_BUFFER_SIZE];
|
|
UChar prefixBuffer[UPRINTF_BUFFER_SIZE];
|
|
int32_t prefixBufferLen = sizeof(prefixBuffer);
|
|
int32_t minDecimalDigits;
|
|
int32_t maxDecimalDigits;
|
|
int32_t resultLen;
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
|
|
prefixBuffer[0] = 0;
|
|
|
|
/* mask off any necessary bits */
|
|
/* if(! info->fIsLongDouble)
|
|
num &= DBL_MAX;*/
|
|
|
|
/* get the formatter */
|
|
format = u_locbund_getNumberFormat(formatBundle, UNUM_SPELLOUT);
|
|
|
|
/* handle error */
|
|
if(format == 0)
|
|
return 0;
|
|
|
|
/* save the formatter's state */
|
|
minDecimalDigits = unum_getAttribute(format, UNUM_MIN_FRACTION_DIGITS);
|
|
maxDecimalDigits = unum_getAttribute(format, UNUM_MAX_FRACTION_DIGITS);
|
|
|
|
/* set the appropriate flags and number of decimal digits on the formatter */
|
|
if(info->fPrecision != -1) {
|
|
/* set the # of decimal digits */
|
|
unum_setAttribute(format, UNUM_FRACTION_DIGITS, info->fPrecision);
|
|
}
|
|
else if(info->fAlt) {
|
|
/* '#' means always show decimal point */
|
|
/* copy of printf behavior on Solaris - '#' shows 6 digits */
|
|
unum_setAttribute(format, UNUM_FRACTION_DIGITS, 6);
|
|
}
|
|
else {
|
|
/* # of decimal digits is 6 if precision not specified */
|
|
unum_setAttribute(format, UNUM_FRACTION_DIGITS, 6);
|
|
}
|
|
|
|
/* set whether to show the sign */
|
|
if (info->fShowSign) {
|
|
u_printf_set_sign(format, info, prefixBuffer, &prefixBufferLen, &status);
|
|
}
|
|
|
|
/* format the number */
|
|
resultLen = unum_formatDouble(format, num, result, UPRINTF_BUFFER_SIZE, 0, &status);
|
|
|
|
if (U_FAILURE(status)) {
|
|
resultLen = 0;
|
|
}
|
|
|
|
/* restore the number format */
|
|
/* TODO: Is this needed? */
|
|
unum_setAttribute(format, UNUM_MIN_FRACTION_DIGITS, minDecimalDigits);
|
|
unum_setAttribute(format, UNUM_MAX_FRACTION_DIGITS, maxDecimalDigits);
|
|
|
|
if (info->fShowSign) {
|
|
/* Reset back to original value regardless of what the error was */
|
|
UErrorCode localStatus = U_ZERO_ERROR;
|
|
u_printf_reset_sign(format, info, prefixBuffer, &prefixBufferLen, &localStatus);
|
|
}
|
|
|
|
return handler->pad_and_justify(context, info, result, resultLen);
|
|
}
|
|
|
|
/* Use US-ASCII characters only for formatting. Most codepages have
|
|
characters 20-7F from Unicode. Using any other codepage specific
|
|
characters will make it very difficult to format the string on
|
|
non-Unicode machines */
|
|
static const u_printf_info g_u_printf_infos[UPRINTF_NUM_FMT_HANDLERS] = {
|
|
/* 0x20 */
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY,
|
|
UFMT_EMPTY, UFMT_SIMPLE_PERCENT,UFMT_EMPTY, UFMT_EMPTY,
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY,
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY,
|
|
|
|
/* 0x30 */
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY,
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY,
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY,
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY,
|
|
|
|
/* 0x40 */
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY, UFMT_UCHAR,
|
|
UFMT_EMPTY, UFMT_SCIENTIFIC, UFMT_EMPTY, UFMT_SCIDBL,
|
|
#ifdef U_USE_OBSOLETE_IO_FORMATTING
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY, UFMT_UCHAR/*deprecated*/,
|
|
#else
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY,
|
|
#endif
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY,
|
|
|
|
/* 0x50 */
|
|
UFMT_PERCENT, UFMT_EMPTY, UFMT_EMPTY, UFMT_USTRING,
|
|
#ifdef U_USE_OBSOLETE_IO_FORMATTING
|
|
UFMT_EMPTY, UFMT_USTRING/*deprecated*/,UFMT_SPELLOUT, UFMT_EMPTY,
|
|
#else
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_SPELLOUT, UFMT_EMPTY,
|
|
#endif
|
|
UFMT_HEX, UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY,
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY,
|
|
|
|
/* 0x60 */
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY, UFMT_CHAR,
|
|
UFMT_INT, UFMT_SCIENTIFIC, UFMT_DOUBLE, UFMT_SCIDBL,
|
|
UFMT_EMPTY, UFMT_INT, UFMT_EMPTY, UFMT_EMPTY,
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_COUNT, UFMT_OCTAL,
|
|
|
|
/* 0x70 */
|
|
UFMT_POINTER, UFMT_EMPTY, UFMT_EMPTY, UFMT_STRING,
|
|
UFMT_EMPTY, UFMT_UINT, UFMT_EMPTY, UFMT_EMPTY,
|
|
UFMT_HEX, UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY,
|
|
UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY,
|
|
};
|
|
|
|
/* flag characters for uprintf */
|
|
#define FLAG_MINUS 0x002D
|
|
#define FLAG_PLUS 0x002B
|
|
#define FLAG_SPACE 0x0020
|
|
#define FLAG_POUND 0x0023
|
|
#define FLAG_ZERO 0x0030
|
|
#define FLAG_PAREN 0x0028
|
|
|
|
#define ISFLAG(s) (s) == FLAG_MINUS || \
|
|
(s) == FLAG_PLUS || \
|
|
(s) == FLAG_SPACE || \
|
|
(s) == FLAG_POUND || \
|
|
(s) == FLAG_ZERO || \
|
|
(s) == FLAG_PAREN
|
|
|
|
/* special characters for uprintf */
|
|
#define SPEC_ASTERISK 0x002A
|
|
#define SPEC_DOLLARSIGN 0x0024
|
|
#define SPEC_PERIOD 0x002E
|
|
#define SPEC_PERCENT 0x0025
|
|
|
|
/* unicode digits */
|
|
#define DIGIT_ZERO 0x0030
|
|
#define DIGIT_ONE 0x0031
|
|
#define DIGIT_TWO 0x0032
|
|
#define DIGIT_THREE 0x0033
|
|
#define DIGIT_FOUR 0x0034
|
|
#define DIGIT_FIVE 0x0035
|
|
#define DIGIT_SIX 0x0036
|
|
#define DIGIT_SEVEN 0x0037
|
|
#define DIGIT_EIGHT 0x0038
|
|
#define DIGIT_NINE 0x0039
|
|
|
|
#define ISDIGIT(s) (s) == DIGIT_ZERO || \
|
|
(s) == DIGIT_ONE || \
|
|
(s) == DIGIT_TWO || \
|
|
(s) == DIGIT_THREE || \
|
|
(s) == DIGIT_FOUR || \
|
|
(s) == DIGIT_FIVE || \
|
|
(s) == DIGIT_SIX || \
|
|
(s) == DIGIT_SEVEN || \
|
|
(s) == DIGIT_EIGHT || \
|
|
(s) == DIGIT_NINE
|
|
|
|
/* u_printf modifiers */
|
|
#define MOD_H 0x0068
|
|
#define MOD_LOWERL 0x006C
|
|
#define MOD_L 0x004C
|
|
|
|
#define ISMOD(s) (s) == MOD_H || \
|
|
(s) == MOD_LOWERL || \
|
|
(s) == MOD_L
|
|
/* Returns an array of the parsed argument type given in the format string. */
|
|
static ufmt_args* parseArguments(const UChar *alias, va_list ap, UErrorCode *status) {
|
|
ufmt_args *arglist = NULL;
|
|
ufmt_type_info *typelist = NULL;
|
|
UBool *islonglong = NULL;
|
|
int32_t size = 0;
|
|
int32_t pos = 0;
|
|
UChar type;
|
|
uint16_t handlerNum;
|
|
const UChar *aliasStart = alias;
|
|
|
|
/* get maximum number of arguments */
|
|
for(;;) {
|
|
/* find % */
|
|
while(*alias != UP_PERCENT && *alias != 0x0000) {
|
|
alias++;
|
|
}
|
|
|
|
if(*alias == 0x0000) {
|
|
break;
|
|
}
|
|
|
|
alias++;
|
|
|
|
/* handle the pos number */
|
|
if(ISDIGIT(*alias)) {
|
|
|
|
/* handle positional parameters */
|
|
if(ISDIGIT(*alias)) {
|
|
pos = (int) (*alias++ - DIGIT_ZERO);
|
|
|
|
while(ISDIGIT(*alias)) {
|
|
pos *= 10;
|
|
pos += (int) (*alias++ - DIGIT_ZERO);
|
|
}
|
|
}
|
|
|
|
/* if there is no '$', don't read anything */
|
|
if(*alias != SPEC_DOLLARSIGN) {
|
|
return NULL;
|
|
}
|
|
} else {
|
|
return NULL;
|
|
}
|
|
|
|
if (pos > size) {
|
|
size = pos;
|
|
}
|
|
}
|
|
|
|
/* create the parsed argument list */
|
|
typelist = (ufmt_type_info*)uprv_malloc(sizeof(ufmt_type_info) * size);
|
|
islonglong = (UBool*)uprv_malloc(sizeof(UBool) * size);
|
|
arglist = (ufmt_args*)uprv_malloc(sizeof(ufmt_args) * size);
|
|
|
|
/* If malloc failed, return NULL */
|
|
if (!typelist || !islonglong || !arglist) {
|
|
if (typelist) {
|
|
uprv_free(typelist);
|
|
}
|
|
|
|
if (islonglong) {
|
|
uprv_free(islonglong);
|
|
}
|
|
|
|
if (arglist) {
|
|
uprv_free(arglist);
|
|
}
|
|
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
|
|
/* reset alias back to the beginning */
|
|
alias = aliasStart;
|
|
|
|
for(;;) {
|
|
/* find % */
|
|
while(*alias != UP_PERCENT && *alias != 0x0000) {
|
|
alias++;
|
|
}
|
|
|
|
if(*alias == 0x0000) {
|
|
break;
|
|
}
|
|
|
|
alias++;
|
|
|
|
/* handle positional parameters */
|
|
if(ISDIGIT(*alias)) {
|
|
pos = (int) (*alias++ - DIGIT_ZERO);
|
|
|
|
while(ISDIGIT(*alias)) {
|
|
pos *= 10;
|
|
pos += (int) (*alias++ - DIGIT_ZERO);
|
|
}
|
|
}
|
|
/* offset position by 1 */
|
|
pos--;
|
|
|
|
/* skip over everything except for the type */
|
|
while (ISMOD(*alias) || ISFLAG(*alias) || ISDIGIT(*alias) ||
|
|
*alias == SPEC_ASTERISK || *alias == SPEC_PERIOD || *alias == SPEC_DOLLARSIGN) {
|
|
islonglong[pos] = FALSE;
|
|
if (ISMOD(*alias)) {
|
|
alias++;
|
|
if (*alias == MOD_LOWERL) {
|
|
islonglong[pos] = TRUE;
|
|
}
|
|
}
|
|
alias++;
|
|
}
|
|
type = *alias;
|
|
|
|
/* store the argument type in the correct position of the parsed argument list */
|
|
handlerNum = (uint16_t)(type - UPRINTF_BASE_FMT_HANDLERS);
|
|
if (handlerNum < UPRINTF_NUM_FMT_HANDLERS) {
|
|
typelist[pos] = g_u_printf_infos[ handlerNum ].info;
|
|
} else {
|
|
typelist[pos] = ufmt_empty;
|
|
}
|
|
}
|
|
|
|
/* store argument in arglist */
|
|
for (pos = 0; pos < size; pos++) {
|
|
switch (typelist[pos]) {
|
|
case ufmt_string:
|
|
case ufmt_ustring:
|
|
case ufmt_pointer:
|
|
arglist[pos].ptrValue = va_arg(ap, void*);
|
|
break;
|
|
case ufmt_char:
|
|
case ufmt_uchar:
|
|
case ufmt_int:
|
|
if (islonglong[pos]) {
|
|
arglist[pos].int64Value = va_arg(ap, int64_t);
|
|
}
|
|
else {
|
|
arglist[pos].int64Value = va_arg(ap, int32_t);
|
|
}
|
|
break;
|
|
case ufmt_float:
|
|
arglist[pos].floatValue = (float) va_arg(ap, double);
|
|
break;
|
|
case ufmt_double:
|
|
arglist[pos].doubleValue = va_arg(ap, double);
|
|
break;
|
|
default:
|
|
/* else args is ignored */
|
|
arglist[pos].ptrValue = NULL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
uprv_free(typelist);
|
|
uprv_free(islonglong);
|
|
|
|
return arglist;
|
|
}
|
|
|
|
/* We parse the argument list in Unicode */
|
|
U_CFUNC int32_t
|
|
u_printf_parse(const u_printf_stream_handler *streamHandler,
|
|
const UChar *fmt,
|
|
void *context,
|
|
u_localized_print_string *locStringContext,
|
|
ULocaleBundle *formatBundle,
|
|
int32_t *written,
|
|
va_list ap)
|
|
{
|
|
uint16_t handlerNum;
|
|
ufmt_args args;
|
|
ufmt_type_info argType;
|
|
u_printf_handler *handler;
|
|
u_printf_spec spec;
|
|
u_printf_spec_info *info = &(spec.fInfo);
|
|
|
|
const UChar *alias = fmt;
|
|
const UChar *backup;
|
|
const UChar *lastAlias;
|
|
const UChar *orgAlias = fmt;
|
|
/* parsed argument list */
|
|
ufmt_args *arglist = NULL; /* initialized it to avoid compiler warnings */
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
if (!locStringContext || locStringContext->available >= 0) {
|
|
/* get the parsed list of argument types */
|
|
arglist = parseArguments(orgAlias, ap, &status);
|
|
|
|
/* Return error if parsing failed. */
|
|
if (U_FAILURE(status)) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/* iterate through the pattern */
|
|
while(!locStringContext || locStringContext->available >= 0) {
|
|
|
|
/* find the next '%' */
|
|
lastAlias = alias;
|
|
while(*alias != UP_PERCENT && *alias != 0x0000) {
|
|
alias++;
|
|
}
|
|
|
|
/* write any characters before the '%' */
|
|
if(alias > lastAlias) {
|
|
*written += (streamHandler->write)(context, lastAlias, (int32_t)(alias - lastAlias));
|
|
}
|
|
|
|
/* break if at end of string */
|
|
if(*alias == 0x0000) {
|
|
break;
|
|
}
|
|
|
|
/* initialize spec to default values */
|
|
spec.fWidthPos = -1;
|
|
spec.fPrecisionPos = -1;
|
|
spec.fArgPos = -1;
|
|
|
|
uprv_memset(info, 0, sizeof(*info));
|
|
info->fPrecision = -1;
|
|
info->fWidth = -1;
|
|
info->fPadChar = 0x0020;
|
|
|
|
/* skip over the initial '%' */
|
|
alias++;
|
|
|
|
/* Check for positional argument */
|
|
if(ISDIGIT(*alias)) {
|
|
|
|
/* Save the current position */
|
|
backup = alias;
|
|
|
|
/* handle positional parameters */
|
|
if(ISDIGIT(*alias)) {
|
|
spec.fArgPos = (int) (*alias++ - DIGIT_ZERO);
|
|
|
|
while(ISDIGIT(*alias)) {
|
|
spec.fArgPos *= 10;
|
|
spec.fArgPos += (int) (*alias++ - DIGIT_ZERO);
|
|
}
|
|
}
|
|
|
|
/* if there is no '$', don't read anything */
|
|
if(*alias != SPEC_DOLLARSIGN) {
|
|
spec.fArgPos = -1;
|
|
alias = backup;
|
|
}
|
|
/* munge the '$' */
|
|
else
|
|
alias++;
|
|
}
|
|
|
|
/* Get any format flags */
|
|
while(ISFLAG(*alias)) {
|
|
switch(*alias++) {
|
|
|
|
/* left justify */
|
|
case FLAG_MINUS:
|
|
info->fLeft = TRUE;
|
|
break;
|
|
|
|
/* always show sign */
|
|
case FLAG_PLUS:
|
|
info->fShowSign = TRUE;
|
|
break;
|
|
|
|
/* use space if no sign present */
|
|
case FLAG_SPACE:
|
|
info->fShowSign = TRUE;
|
|
info->fSpace = TRUE;
|
|
break;
|
|
|
|
/* use alternate form */
|
|
case FLAG_POUND:
|
|
info->fAlt = TRUE;
|
|
break;
|
|
|
|
/* pad with leading zeroes */
|
|
case FLAG_ZERO:
|
|
info->fZero = TRUE;
|
|
info->fPadChar = 0x0030;
|
|
break;
|
|
|
|
/* pad character specified */
|
|
case FLAG_PAREN:
|
|
|
|
/* TODO test that all four are numbers */
|
|
/* first four characters are hex values for pad char */
|
|
info->fPadChar = (UChar)ufmt_digitvalue(*alias++);
|
|
info->fPadChar = (UChar)((info->fPadChar * 16) + ufmt_digitvalue(*alias++));
|
|
info->fPadChar = (UChar)((info->fPadChar * 16) + ufmt_digitvalue(*alias++));
|
|
info->fPadChar = (UChar)((info->fPadChar * 16) + ufmt_digitvalue(*alias++));
|
|
|
|
/* final character is ignored */
|
|
alias++;
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Get the width */
|
|
|
|
/* width is specified out of line */
|
|
if(*alias == SPEC_ASTERISK) {
|
|
|
|
info->fWidth = -2;
|
|
|
|
/* Skip the '*' */
|
|
alias++;
|
|
|
|
/* Save the current position */
|
|
backup = alias;
|
|
|
|
/* handle positional parameters */
|
|
if(ISDIGIT(*alias)) {
|
|
spec.fWidthPos = (int) (*alias++ - DIGIT_ZERO);
|
|
|
|
while(ISDIGIT(*alias)) {
|
|
spec.fWidthPos *= 10;
|
|
spec.fWidthPos += (int) (*alias++ - DIGIT_ZERO);
|
|
}
|
|
}
|
|
|
|
/* if there is no '$', don't read anything */
|
|
if(*alias != SPEC_DOLLARSIGN) {
|
|
spec.fWidthPos = -1;
|
|
alias = backup;
|
|
}
|
|
/* munge the '$' */
|
|
else
|
|
alias++;
|
|
}
|
|
/* read the width, if present */
|
|
else if(ISDIGIT(*alias)){
|
|
info->fWidth = (int) (*alias++ - DIGIT_ZERO);
|
|
|
|
while(ISDIGIT(*alias)) {
|
|
info->fWidth *= 10;
|
|
info->fWidth += (int) (*alias++ - DIGIT_ZERO);
|
|
}
|
|
}
|
|
|
|
/* Get the precision */
|
|
|
|
if(*alias == SPEC_PERIOD) {
|
|
|
|
/* eat up the '.' */
|
|
alias++;
|
|
|
|
/* precision is specified out of line */
|
|
if(*alias == SPEC_ASTERISK) {
|
|
|
|
info->fPrecision = -2;
|
|
|
|
/* Skip the '*' */
|
|
alias++;
|
|
|
|
/* save the current position */
|
|
backup = alias;
|
|
|
|
/* handle positional parameters */
|
|
if(ISDIGIT(*alias)) {
|
|
spec.fPrecisionPos = (int) (*alias++ - DIGIT_ZERO);
|
|
|
|
while(ISDIGIT(*alias)) {
|
|
spec.fPrecisionPos *= 10;
|
|
spec.fPrecisionPos += (int) (*alias++ - DIGIT_ZERO);
|
|
}
|
|
|
|
/* if there is no '$', don't read anything */
|
|
if(*alias != SPEC_DOLLARSIGN) {
|
|
spec.fPrecisionPos = -1;
|
|
alias = backup;
|
|
}
|
|
else {
|
|
/* munge the '$' */
|
|
alias++;
|
|
}
|
|
}
|
|
}
|
|
/* read the precision */
|
|
else if(ISDIGIT(*alias)){
|
|
info->fPrecision = (int) (*alias++ - DIGIT_ZERO);
|
|
|
|
while(ISDIGIT(*alias)) {
|
|
info->fPrecision *= 10;
|
|
info->fPrecision += (int) (*alias++ - DIGIT_ZERO);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Get any modifiers */
|
|
if(ISMOD(*alias)) {
|
|
switch(*alias++) {
|
|
|
|
/* short */
|
|
case MOD_H:
|
|
info->fIsShort = TRUE;
|
|
break;
|
|
|
|
/* long or long long */
|
|
case MOD_LOWERL:
|
|
if(*alias == MOD_LOWERL) {
|
|
info->fIsLongLong = TRUE;
|
|
/* skip over the next 'l' */
|
|
alias++;
|
|
}
|
|
else
|
|
info->fIsLong = TRUE;
|
|
break;
|
|
|
|
/* long double */
|
|
case MOD_L:
|
|
info->fIsLongDouble = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* finally, get the specifier letter */
|
|
info->fSpec = *alias++;
|
|
info->fOrigSpec = info->fSpec;
|
|
|
|
/* fill in the precision and width, if specified out of line */
|
|
|
|
/* width specified out of line */
|
|
if(spec.fInfo.fWidth == -2) {
|
|
if(spec.fWidthPos == -1) {
|
|
/* read the width from the argument list */
|
|
info->fWidth = va_arg(ap, int32_t);
|
|
}
|
|
/* else handle positional parameter */
|
|
|
|
/* if it's negative, take the absolute value and set left alignment */
|
|
if(info->fWidth < 0) {
|
|
info->fWidth *= -1; /* Make positive */
|
|
info->fLeft = TRUE;
|
|
}
|
|
}
|
|
|
|
/* precision specified out of line */
|
|
if(info->fPrecision == -2) {
|
|
if(spec.fPrecisionPos == -1) {
|
|
/* read the precision from the argument list */
|
|
info->fPrecision = va_arg(ap, int32_t);
|
|
}
|
|
/* else handle positional parameter */
|
|
|
|
/* if it's negative, set it to zero */
|
|
if(info->fPrecision < 0)
|
|
info->fPrecision = 0;
|
|
}
|
|
|
|
handlerNum = (uint16_t)(info->fSpec - UPRINTF_BASE_FMT_HANDLERS);
|
|
if (handlerNum < UPRINTF_NUM_FMT_HANDLERS) {
|
|
/* query the info function for argument information */
|
|
argType = g_u_printf_infos[ handlerNum ].info;
|
|
|
|
/* goto the correct argument on arg_list if position is specified */
|
|
if (spec.fArgPos > 0) {
|
|
/* offset position by 1 */
|
|
spec.fArgPos--;
|
|
switch(argType) {
|
|
case ufmt_count:
|
|
/* set the spec's width to the # of chars written */
|
|
info->fWidth = *written;
|
|
/* fall through to set the pointer */
|
|
U_FALLTHROUGH;
|
|
case ufmt_string:
|
|
case ufmt_ustring:
|
|
case ufmt_pointer:
|
|
args.ptrValue = arglist[spec.fArgPos].ptrValue;
|
|
break;
|
|
case ufmt_char:
|
|
case ufmt_uchar:
|
|
case ufmt_int:
|
|
args.int64Value = arglist[spec.fArgPos].int64Value;
|
|
break;
|
|
case ufmt_float:
|
|
args.floatValue = arglist[spec.fArgPos].floatValue;
|
|
break;
|
|
case ufmt_double:
|
|
args.doubleValue = arglist[spec.fArgPos].doubleValue;
|
|
break;
|
|
default:
|
|
/* else args is ignored */
|
|
args.ptrValue = NULL;
|
|
break;
|
|
}
|
|
} else { /* no positional argument specified */
|
|
switch(argType) {
|
|
case ufmt_count:
|
|
/* set the spec's width to the # of chars written */
|
|
info->fWidth = *written;
|
|
/* fall through to set the pointer */
|
|
U_FALLTHROUGH;
|
|
case ufmt_string:
|
|
case ufmt_ustring:
|
|
case ufmt_pointer:
|
|
args.ptrValue = va_arg(ap, void*);
|
|
break;
|
|
case ufmt_char:
|
|
case ufmt_uchar:
|
|
case ufmt_int:
|
|
if (info->fIsLongLong) {
|
|
args.int64Value = va_arg(ap, int64_t);
|
|
}
|
|
else {
|
|
args.int64Value = va_arg(ap, int32_t);
|
|
}
|
|
break;
|
|
case ufmt_float:
|
|
args.floatValue = (float) va_arg(ap, double);
|
|
break;
|
|
case ufmt_double:
|
|
args.doubleValue = va_arg(ap, double);
|
|
break;
|
|
default:
|
|
/* else args is ignored */
|
|
args.ptrValue = NULL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* call the handler function */
|
|
handler = g_u_printf_infos[ handlerNum ].handler;
|
|
if(handler != 0) {
|
|
*written += (*handler)(streamHandler, context, formatBundle, info, &args);
|
|
}
|
|
else {
|
|
/* just echo unknown tags */
|
|
*written += (streamHandler->write)(context, fmt, (int32_t)(alias - lastAlias));
|
|
}
|
|
}
|
|
else {
|
|
/* just echo unknown tags */
|
|
*written += (streamHandler->write)(context, fmt, (int32_t)(alias - lastAlias));
|
|
}
|
|
}
|
|
/* delete parsed argument list */
|
|
if (arglist != NULL) {
|
|
uprv_free(arglist);
|
|
}
|
|
/* return # of characters in this format that have been parsed. */
|
|
return (int32_t)(alias - fmt);
|
|
}
|
|
|
|
#endif /* #if !UCONFIG_NO_FORMATTING */
|