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scuffed-code/icu4c/source/extra/ustdio/sscanf.c

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ICU-829 new sprintf/sscanf functions (it works, but the whole library needs testing) X-SVN-Rev: 3600
2001-02-09 01:45:45 +00:00
/*
ICU-903 Updated the copyright notice X-SVN-Rev: 4242
2001-03-21 22:07:51 +00:00
******************************************************************************
ICU-829 new sprintf/sscanf functions (it works, but the whole library needs testing) X-SVN-Rev: 3600
2001-02-09 01:45:45 +00:00
*
ICU-903 Updated the copyright notice X-SVN-Rev: 4242
2001-03-21 22:07:51 +00:00
* Copyright (C) 2000-2001, International Business Machines
ICU-829 new sprintf/sscanf functions (it works, but the whole library needs testing) X-SVN-Rev: 3600
2001-02-09 01:45:45 +00:00
* Corporation and others. All Rights Reserved.
*
ICU-903 Updated the copyright notice X-SVN-Rev: 4242
2001-03-21 22:07:51 +00:00
******************************************************************************
ICU-829 new sprintf/sscanf functions (it works, but the whole library needs testing) X-SVN-Rev: 3600
2001-02-09 01:45:45 +00:00
*
* File sscanf.c
*
* Modification History:
*
* Date Name Description
* 02/08/00 george Creation. Copied from uscanf.c
ICU-903 Updated the copyright notice X-SVN-Rev: 4242
2001-03-21 22:07:51 +00:00
******************************************************************************
ICU-829 new sprintf/sscanf functions (it works, but the whole library needs testing) X-SVN-Rev: 3600
2001-02-09 01:45:45 +00:00
*/
#include "unicode/utypes.h"
#include "unicode/uchar.h"
#include "sscanf.h"
#include "sscanf_p.h"
#include "uscanset.h"
#include "unicode/ustdio.h"
#include "unicode/ustring.h"
#include "locbund.h"
#include "loccache.h"
#include "unicode/unum.h"
#include "unicode/udat.h"
#include "unicode/uloc.h"
#include <string.h>
#include <stdlib.h>
/* --- Prototypes ---------------------------- */
int32_t
u_sscanf_simple_percent_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_ustring_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_count_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_integer_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_uinteger_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_double_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_scientific_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_scidbl_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_currency_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_percent_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_date_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_time_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_char_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_uchar_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_spellout_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_hex_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_octal_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_pointer_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_string_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
int32_t
u_sscanf_scanset_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed);
/* ANSI style formatting */
/* Use US-ASCII characters only for formatting */
/* % */
#define UFMT_SIMPLE_PERCENT {ufmt_simple_percent, u_sscanf_simple_percent_handler}
/* s */
#define UFMT_STRING {ufmt_string, u_sscanf_string_handler}
/* c */
#define UFMT_CHAR {ufmt_string, u_sscanf_char_handler}
/* d, i */
#define UFMT_INT {ufmt_int, u_sscanf_integer_handler}
/* u */
#define UFMT_UINT {ufmt_int, u_sscanf_uinteger_handler}
/* o */
#define UFMT_OCTAL {ufmt_int, u_sscanf_octal_handler}
/* x, X */
#define UFMT_HEX {ufmt_int, u_sscanf_hex_handler}
/* f */
#define UFMT_DOUBLE {ufmt_double, u_sscanf_double_handler}
/* e, E */
#define UFMT_SCIENTIFIC {ufmt_double, u_sscanf_scientific_handler}
/* g, G */
#define UFMT_SCIDBL {ufmt_double, u_sscanf_scidbl_handler}
/* n */
#define UFMT_COUNT {ufmt_count, u_sscanf_count_handler}
/* [ */
#define UFMT_SCANSET {ufmt_string, u_sscanf_scanset_handler} /* TODO: Is this also suppose to be ufmt_ustring */
/* non-ANSI extensions */
/* Use US-ASCII characters only for formatting */
/* p */
#define UFMT_POINTER {ufmt_pointer, u_sscanf_pointer_handler}
/* D */
#define UFMT_DATE {ufmt_date, u_sscanf_date_handler}
/* T */
#define UFMT_TIME {ufmt_date, u_sscanf_time_handler}
/* V */
#define UFMT_SPELLOUT {ufmt_double, u_sscanf_spellout_handler}
/* P */
#define UFMT_PERCENT {ufmt_double, u_sscanf_percent_handler}
/* M */
#define UFMT_CURRENCY {ufmt_double, u_sscanf_currency_handler}
/* K */
#define UFMT_UCHAR {ufmt_uchar, u_sscanf_uchar_handler}
/* U */
#define UFMT_USTRING {ufmt_ustring, u_sscanf_ustring_handler}
#define UFMT_EMPTY {ufmt_empty, NULL}
struct u_sscanf_info {
enum ufmt_type_info info;
u_sscanf_handler handler;
};
typedef struct u_sscanf_info u_sscanf_info;
/* 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_sscanf_info g_u_sscanf_infos[108] = {
/* 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_EMPTY,
UFMT_DATE, UFMT_SCIENTIFIC, UFMT_EMPTY, UFMT_SCIDBL,
UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY, UFMT_UCHAR,
UFMT_EMPTY, UFMT_CURRENCY, UFMT_EMPTY, UFMT_EMPTY,
/* 0x50 */
UFMT_PERCENT, UFMT_EMPTY, UFMT_EMPTY, UFMT_EMPTY,
UFMT_TIME, UFMT_USTRING, UFMT_SPELLOUT, UFMT_EMPTY,
UFMT_HEX, UFMT_EMPTY, UFMT_EMPTY, UFMT_SCANSET,
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,
};
#define USCANF_NUM_FMT_HANDLERS sizeof(g_u_sscanf_infos)
/* We do not use handlers for 0-0x1f */
#define USCANF_BASE_FMT_HANDLERS 0x20
int32_t
u_sscanf(UChar *buffer,
const char *locale,
const char *patternSpecification,
... )
{
va_list ap;
int32_t converted;
va_start(ap, patternSpecification);
converted = u_vsscanf(buffer, locale, patternSpecification, ap);
va_end(ap);
return converted;
}
int32_t
u_sscanf_u(UChar *buffer,
const char *locale,
const UChar *patternSpecification,
... )
{
va_list ap;
int32_t converted;
va_start(ap, patternSpecification);
converted = u_vsscanf_u(buffer, locale, patternSpecification, ap);
va_end(ap);
return converted;
}
ICU-1541 consistently added U_CAPI & U_EXPORT2 to all the declarations and definitions X-SVN-Rev: 7041
2001-11-21 01:22:16 +00:00
U_CAPI int32_t U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
ICU-829 new sprintf/sscanf functions (it works, but the whole library needs testing) X-SVN-Rev: 3600
2001-02-09 01:45:45 +00:00
u_vsscanf(UChar *buffer,
const char *locale,
const char *patternSpecification,
va_list ap)
{
int32_t converted;
UChar *pattern;
/* convert from the default codepage to Unicode */
pattern = ufmt_defaultCPToUnicode(patternSpecification,
strlen(patternSpecification));
if(pattern == 0) {
return 0;
}
/* do the work */
converted = u_vsscanf_u(buffer, locale, pattern, ap);
/* clean up */
free(pattern);
return converted;
}
static int32_t
u_sscanf_skip_leading_ws(u_localized_string *input,
UChar pad)
{
UChar c;
int32_t count = input->pos;
int32_t skipped;
/* skip all leading ws in the stream */
while( ((c = input->str[count]) != 0xFFFF) && (c == pad || ufmt_isws(c)) )
count++;
if(c == 0xFFFF)
count++;
skipped = count - input->pos;
input->pos = count;
return skipped;
}
int32_t
u_sscanf_simple_percent_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
/* make sure the next character in the stream is a percent */
if(input->str[input->pos++] != 0x0025) {
return -1;
}
return 0;
}
int32_t
u_sscanf_string_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
UChar c;
int32_t count;
const UChar *source;
UConverter *conv;
UErrorCode status = U_ZERO_ERROR;
char *arg = (char*)(args[0].ptrValue);
char *alias = arg;
char *limit;
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* get the string one character at a time, truncating to the width */
count = 0;
/* open the default converter */
conv = ucnv_open(ucnv_getDefaultName(), &status);
if(U_FAILURE(status))
return -1;
/* since there is no real limit, just use a reasonable value */
limit = alias + 2048; /* TODO: Specify a real limit! */
while( ((c = input->str[input->pos++]) != 0xFFFF) &&
(c != info->fPadChar && ! ufmt_isws(c)) &&
(info->fWidth == -1 || count < info->fWidth) ) {
/* put the character from the stream onto the target */
source = &c;
/* convert the character to the default codepage */
ucnv_fromUnicode(conv, &alias, limit, &source, source + 1,
NULL, TRUE, &status);
if(U_FAILURE(status))
return -1;
/* increment the count */
++count;
}
/* put the final character we read back on the stream */
if(c != 0xFFFF)
input->pos--;
/* add the terminator */
*alias = 0x00;
/* clean up */
ucnv_close(conv);
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_ustring_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
UChar c;
int32_t count;
UChar *arg = (UChar*)(args[0].ptrValue);
UChar *alias = arg;
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* get the string one character at a time, truncating to the width */
count = 0;
while( ((c = input->str[input->pos++]) != 0xFFFF) &&
(c != info->fPadChar && ! ufmt_isws(c)) &&
(info->fWidth == -1 || count < info->fWidth) ) {
/* put the character from the stream onto the target */
*alias++ = c;
/* increment the count */
++count;
}
/* put the final character we read back on the stream */
if(c != 0xFFFF)
input->pos--;
/* add the terminator */
*alias = 0x0000;
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_count_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
int *converted = (int*)(args[0].ptrValue);
/* in the special case of count, the u_sscanf_spec_info's width */
/* will contain the # of items converted thus far */
*converted = info->fWidth;
/* we converted 0 args */
return 0;
}
int32_t
u_sscanf_integer_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
int32_t len;
long *num = (long*) (args[0].ptrValue);
UNumberFormat *format;
int32_t parsePos = 0;
UErrorCode status = U_ZERO_ERROR;
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* determine the size of the stream's buffer */
len = input->len - input->pos;
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* get the formatter */
format = u_locbund_getNumberFormat(input->fBundle);
/* handle error */
if(format == 0)
return 0;
/* parse the number */
*num = unum_parse(format, &(input->str[input->pos]), len, &parsePos, &status);
/* mask off any necessary bits */
if(info->fIsShort)
*num &= UINT16_MAX;
else if(! info->fIsLong || ! info->fIsLongLong)
*num &= UINT32_MAX;
/* update the stream's position to reflect consumed data */
input->pos += parsePos;
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_uinteger_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
ufmt_args uint_args;
int32_t converted_args;
uint32_t *num = (uint32_t*) (args[0].ptrValue);
double currDouble;
memcpy(&uint_args, args, sizeof(ufmt_args));
uint_args.ptrValue = &currDouble;
converted_args = u_sscanf_double_handler(input, info, &uint_args, fmt, consumed);
*num = (uint32_t)currDouble;
return converted_args;
}
int32_t
u_sscanf_double_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
int32_t len;
double *num = (double*) (args[0].ptrValue);
UNumberFormat *format;
int32_t parsePos = 0;
UErrorCode status = U_ZERO_ERROR;
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* determine the size of the stream's buffer */
len = input->len - input->pos;
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* get the formatter */
format = u_locbund_getNumberFormat(input->fBundle);
/* handle error */
if(format == 0)
return 0;
/* parse the number */
*num = unum_parseDouble(format, &(input->str[input->pos]), len, &parsePos, &status);
/* mask off any necessary bits */
/* if(! info->fIsLong_double)
num &= DBL_MAX;*/
/* update the stream's position to reflect consumed data */
input->pos += parsePos;
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_scientific_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
int32_t len;
double *num = (double*) (args[0].ptrValue);
UNumberFormat *format;
int32_t parsePos = 0;
UErrorCode status = U_ZERO_ERROR;
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* determine the size of the stream's buffer */
len = input->len - input->pos;
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* get the formatter */
format = u_locbund_getScientificFormat(input->fBundle);
/* handle error */
if(format == 0)
return 0;
/* parse the number */
*num = unum_parseDouble(format, &(input->str[input->pos]), len, &parsePos, &status);
/* mask off any necessary bits */
/* if(! info->fIsLong_double)
num &= DBL_MAX;*/
/* update the stream's position to reflect consumed data */
input->pos += parsePos;
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_scidbl_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
int32_t len;
double *num = (double*) (args[0].ptrValue);
UNumberFormat *scientificFormat, *genericFormat;
/*int32_t scientificResult, genericResult;*/
double scientificResult, genericResult;
int32_t scientificParsePos = 0, genericParsePos = 0;
UErrorCode scientificStatus = U_ZERO_ERROR;
UErrorCode genericStatus = U_ZERO_ERROR;
/* since we can't determine by scanning the characters whether */
/* a number was formatted in the 'f' or 'g' styles, parse the */
/* string with both formatters, and assume whichever one */
/* parsed the most is the correct formatter to use */
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* determine the size of the stream's buffer */
len = input->len - input->pos;
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* get the formatters */
scientificFormat = u_locbund_getScientificFormat(input->fBundle);
genericFormat = u_locbund_getNumberFormat(input->fBundle);
/* handle error */
if(scientificFormat == 0 || genericFormat == 0)
return 0;
/* parse the number using each format*/
scientificResult = unum_parseDouble(scientificFormat, &(input->str[input->pos]), len,
&scientificParsePos, &scientificStatus);
genericResult = unum_parseDouble(genericFormat, &(input->str[input->pos]), len,
&genericParsePos, &genericStatus);
/* determine which parse made it farther */
if(scientificParsePos > genericParsePos) {
/* stash the result in num */
*num = scientificResult;
/* update the stream's position to reflect consumed data */
input->pos += scientificParsePos;
}
else {
/* stash the result in num */
*num = genericResult;
/* update the stream's position to reflect consumed data */
input->pos += genericParsePos;
}
/* mask off any necessary bits */
/* if(! info->fIsLong_double)
num &= DBL_MAX;*/
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_currency_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
int32_t len;
double *num = (double*) (args[0].ptrValue);
UNumberFormat *format;
int32_t parsePos = 0;
UErrorCode status = U_ZERO_ERROR;
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* determine the size of the stream's buffer */
len = input->len - input->pos;
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* get the formatter */
format = u_locbund_getCurrencyFormat(input->fBundle);
/* handle error */
if(format == 0)
return 0;
/* parse the number */
*num = unum_parseDouble(format, &(input->str[input->pos]), len, &parsePos, &status);
/* mask off any necessary bits */
/* if(! info->fIsLong_double)
num &= DBL_MAX;*/
/* update the stream's position to reflect consumed data */
input->pos += parsePos;
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_percent_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
int32_t len;
double *num = (double*) (args[0].ptrValue);
UNumberFormat *format;
int32_t parsePos = 0;
UErrorCode status = U_ZERO_ERROR;
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* determine the size of the stream's buffer */
len = input->len - input->pos;
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* get the formatter */
format = u_locbund_getPercentFormat(input->fBundle);
/* handle error */
if(format == 0)
return 0;
/* parse the number */
*num = unum_parseDouble(format, &(input->str[input->pos]), len, &parsePos, &status);
/* mask off any necessary bits */
/* if(! info->fIsLong_double)
num &= DBL_MAX;*/
/* update the stream's position to reflect consumed data */
input->pos += parsePos;
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_date_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
int32_t len;
UDate *date = (UDate*) (args[0].ptrValue);
UDateFormat *format;
int32_t parsePos = 0;
UErrorCode status = U_ZERO_ERROR;
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* determine the size of the stream's buffer */
len = input->len - input->pos;
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* get the formatter */
format = u_locbund_getDateFormat(input->fBundle);
/* handle error */
if(format == 0)
return 0;
/* parse the number */
*date = udat_parse(format, &(input->str[input->pos]), len, &parsePos, &status);
/* update the stream's position to reflect consumed data */
input->pos += parsePos;
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_time_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
int32_t len;
UDate *time = (UDate*) (args[0].ptrValue);
UDateFormat *format;
int32_t parsePos = 0;
UErrorCode status = U_ZERO_ERROR;
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* determine the size of the stream's buffer */
len = input->len - input->pos;
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* get the formatter */
format = u_locbund_getTimeFormat(input->fBundle);
/* handle error */
if(format == 0)
return 0;
/* parse the number */
*time = udat_parse(format, &(input->str[input->pos]), len, &parsePos, &status);
/* update the stream's position to reflect consumed data */
input->pos += parsePos;
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_char_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
UChar uc = 0;
char *result;
char *c = (char*)(args[0].ptrValue);
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* get the character from the stream, truncating to the width */
if(info->fWidth == -1 || info->fWidth > 1)
uc = input->str[input->pos++];
/* handle EOF */
if(uc == 0xFFFF)
return -1;
/* convert the character to the default codepage */
result = ufmt_unicodeToDefaultCP(&uc, 1);
*c = result[0];
/* clean up */
free(result);
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_uchar_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
UChar *c = (UChar*)(args[0].ptrValue);
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* get the character from the stream, truncating to the width */
if(info->fWidth == -1 || info->fWidth > 1)
*c = input->str[input->pos];
/* handle EOF */
if(*c == 0xFFFF)
return -1;
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_spellout_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
int32_t len;
double *num = (double*) (args[0].ptrValue);
UNumberFormat *format;
int32_t parsePos = 0;
UErrorCode status = U_ZERO_ERROR;
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* determine the size of the stream's buffer */
len = input->len - input->pos;
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* get the formatter */
format = u_locbund_getSpelloutFormat(input->fBundle);
/* handle error */
if(format == 0)
return 0;
/* parse the number */
*num = unum_parseDouble(format, &(input->str[input->pos]), len, &parsePos, &status);
/* mask off any necessary bits */
/* if(! info->fIsLong_double)
num &= DBL_MAX;*/
/* update the stream's position to reflect consumed data */
input->pos += parsePos;
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_hex_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
int32_t len;
long *num = (long*) (args[0].ptrValue);
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* determine the size of the stream's buffer */
len = input->len - input->pos;
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* check for alternate form */
if( input->str[input->pos] == 0x0030 &&
(input->str[input->pos + 1] == 0x0078 || input->str[input->pos + 1] == 0x0058) ) {
/* skip the '0' and 'x' or 'X' if present */
input->pos += 2;
len -= 2;
}
/* parse the number */
*num = ufmt_utol(&(input->str[input->pos]), &len, 16);
/* update the stream's position to reflect consumed data */
input->pos += len;
/* mask off any necessary bits */
if(info->fIsShort)
*num &= UINT16_MAX;
else if(! info->fIsLong || ! info->fIsLongLong)
*num &= UINT32_MAX;
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_octal_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
int32_t len;
long *num = (long*) (args[0].ptrValue);
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* determine the size of the stream's buffer */
len = input->len - input->pos;
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* parse the number */
*num = ufmt_utol(&(input->str[input->pos]), &len, 8);
/* update the stream's position to reflect consumed data */
input->pos += len;
/* mask off any necessary bits */
if(info->fIsShort)
*num &= UINT16_MAX;
else if(! info->fIsLong || ! info->fIsLongLong)
*num &= UINT32_MAX;
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_pointer_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
int32_t len;
void *p = (void*)(args[0].ptrValue);
/* skip all ws in the stream */
u_sscanf_skip_leading_ws(input, info->fPadChar);
/* determine the size of the stream's buffer */
len = input->len - input->pos;
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* parse the pointer - cast to void** to assign to *p */
*(void**)p = (void*) ufmt_utol(&(input->str[input->pos]), &len, 16);
/* update the stream's position to reflect consumed data */
input->pos += len;
/* we converted 1 arg */
return 1;
}
int32_t
u_sscanf_scanset_handler(u_localized_string *input,
const u_sscanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *consumed)
{
u_scanf_scanset scanset;
int32_t len;
UBool success;
UChar c;
const UChar *source;
UConverter *conv;
UErrorCode status = U_ZERO_ERROR;
char *s = (char*) (args[0].ptrValue);
char *alias, *limit;
/* determine the size of the stream's buffer */
len = input->len - input->pos;
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* alias the target */
alias = s;
limit = alias + len;
/* parse the scanset from the fmt string */
*consumed = u_strlen(fmt);
success = u_scanf_scanset_init(&scanset, fmt, consumed);
/* increment consumed by one to eat the final ']' */
++(*consumed);
/* open the default converter */
conv = ucnv_open(ucnv_getDefaultName(), &status);
/* verify that the parse was successful and the converter opened */
if(! success || U_FAILURE(status))
return -1;
/* grab characters one at a time and make sure they are in the scanset */
while( (c = input->str[input->pos++]) != 0xFFFF && alias < limit) {
if(u_scanf_scanset_in(&scanset, c)) {
source = &c;
/* convert the character to the default codepage */
ucnv_fromUnicode(conv, &alias, limit, &source, source + 1,
NULL, TRUE, &status);
if(U_FAILURE(status))
return -1;
}
/* if the character's not in the scanset, break out */
else {
break;
}
}
/* put the final character we read back on the stream */
if(c != 0xFFFF)
ICU-535 Fixed some compiler warnings X-SVN-Rev: 3611
2001-02-12 20:03:49 +00:00
input->pos--;
ICU-829 new sprintf/sscanf functions (it works, but the whole library needs testing) X-SVN-Rev: 3600
2001-02-09 01:45:45 +00:00
/* if we didn't match at least 1 character, fail */
if(alias == s)
return -1;
/* otherwise, add the terminator */
else
*alias = 0x00;
/* clean up */
ucnv_close(conv);
/* we converted 1 arg */
return 1;
}
#define UP_PERCENT 0x0025
ICU-1541 consistently added U_CAPI & U_EXPORT2 to all the declarations and definitions X-SVN-Rev: 7041
2001-11-21 01:22:16 +00:00
U_CAPI int32_t U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
ICU-829 new sprintf/sscanf functions (it works, but the whole library needs testing) X-SVN-Rev: 3600
2001-02-09 01:45:45 +00:00
u_vsscanf_u(UChar *buffer,
const char *locale,
const UChar *patternSpecification,
va_list ap)
{
const UChar *alias;
int32_t count, converted, temp;
uint16_t handlerNum;
ufmt_args args;
u_localized_string inStr;
u_sscanf_spec spec;
ufmt_type_info info;
u_sscanf_handler handler;
/* alias the pattern */
alias = patternSpecification;
inStr.str = buffer;
inStr.len = u_strlen(buffer);
inStr.pos = 0;
/* haven't converted anything yet */
converted = 0;
/* if locale is 0, use the default */
if(locale == 0) {
locale = uloc_getDefault();
}
inStr.fBundle = u_loccache_get(locale);
if(inStr.fBundle == 0) {
return 0;
}
inStr.fOwnBundle = FALSE;
/* iterate through the pattern */
for(;;) {
/* match any characters up to the next '%' */
while(*alias != UP_PERCENT && *alias != 0x0000 && inStr.str[inStr.pos++] == *alias) {
alias++;
}
/* if we aren't at a '%', or if we're at end of string, break*/
if(*alias != UP_PERCENT || *alias == 0x0000)
break;
/* parse the specifier */
count = u_sscanf_parse_spec(alias, &spec);
/* update the pointer in pattern */
alias += count;
/* skip the argument, if necessary */
if(spec.fSkipArg)
ICU-900 Fixed some compiler warnings X-SVN-Rev: 7029
2001-11-20 21:25:14 +00:00
args.ptrValue = va_arg(ap, int*);
ICU-829 new sprintf/sscanf functions (it works, but the whole library needs testing) X-SVN-Rev: 3600
2001-02-09 01:45:45 +00:00
handlerNum = (uint16_t)(spec.fInfo.fSpec - USCANF_BASE_FMT_HANDLERS);
if (handlerNum < USCANF_NUM_FMT_HANDLERS) {
/* query the info function for argument information */
info = g_u_sscanf_infos[ handlerNum ].info;
if(info > ufmt_simple_percent) {
switch(info) {
case ufmt_count:
args.intValue = va_arg(ap, int);
/* set the spec's width to the # of items converted */
spec.fInfo.fWidth = converted;
break;
case ufmt_char:
case ufmt_uchar:
case ufmt_int:
args.ptrValue = va_arg(ap, int*);
break;
case ufmt_wchar:
args.ptrValue = va_arg(ap, wchar_t*);
break;
case ufmt_string:
args.ptrValue = va_arg(ap, char*);
break;
case ufmt_wstring:
args.ptrValue = va_arg(ap, wchar_t*);
break;
case ufmt_pointer:
args.ptrValue = va_arg(ap, void*);
break;
case ufmt_float:
args.ptrValue = va_arg(ap, float*);
break;
case ufmt_double:
args.ptrValue = va_arg(ap, double*);
break;
case ufmt_date:
args.ptrValue = va_arg(ap, UDate*);
break;
case ufmt_ustring:
args.ptrValue = va_arg(ap, UChar*);
break;
default:
break; /* Should never get here */
}
}
/* call the handler function */
handler = g_u_sscanf_infos[ handlerNum ].handler;
if(handler != 0) {
/* reset count */
count = 0;
temp = (*handler)(&inStr, &spec.fInfo, &args, alias, &count);
/* if the handler encountered an error condition, break */
if(temp == -1)
break;
/* add to the # of items converted */
converted += temp;
/* update the pointer in pattern */
alias += count;
}
/* else do nothing */
}
/* else do nothing */
/* just ignore unknown tags */
}
/* return # of items converted */
return converted;
}
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