1349 lines
37 KiB
C
1349 lines
37 KiB
C
/*
|
|
******************************************************************************
|
|
*
|
|
* Copyright (C) 1998-2001, International Business Machines
|
|
* Corporation and others. All Rights Reserved.
|
|
*
|
|
******************************************************************************
|
|
*
|
|
* File uscanf.c
|
|
*
|
|
* Modification History:
|
|
*
|
|
* Date Name Description
|
|
* 12/02/98 stephen Creation.
|
|
* 03/13/99 stephen Modified for new C API.
|
|
******************************************************************************
|
|
*/
|
|
|
|
#include "unicode/utypes.h"
|
|
#include "unicode/uchar.h"
|
|
|
|
#include "uscanf.h"
|
|
#include "uscanf_p.h"
|
|
#include "uscanset.h"
|
|
#include "unicode/ustdio.h"
|
|
#include "ufile.h"
|
|
#include "unicode/ustring.h"
|
|
#include "locbund.h"
|
|
#include "unicode/unum.h"
|
|
#include "unicode/udat.h"
|
|
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
/* --- Prototypes ---------------------------- */
|
|
|
|
int32_t
|
|
u_scanf_simple_percent_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_ustring_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_count_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_integer_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_uinteger_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_double_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_scientific_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_scidbl_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_currency_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_percent_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_date_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_time_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_char_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_uchar_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_spellout_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_hex_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_octal_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_pointer_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_string_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed);
|
|
|
|
int32_t
|
|
u_scanf_scanset_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_simple_percent_handler}
|
|
/* s */
|
|
#define UFMT_STRING {ufmt_string, u_scanf_string_handler}
|
|
/* c */
|
|
#define UFMT_CHAR {ufmt_string, u_scanf_char_handler}
|
|
/* d, i */
|
|
#define UFMT_INT {ufmt_int, u_scanf_integer_handler}
|
|
/* u */
|
|
#define UFMT_UINT {ufmt_int, u_scanf_uinteger_handler}
|
|
/* o */
|
|
#define UFMT_OCTAL {ufmt_int, u_scanf_octal_handler}
|
|
/* x, X */
|
|
#define UFMT_HEX {ufmt_int, u_scanf_hex_handler}
|
|
/* f */
|
|
#define UFMT_DOUBLE {ufmt_double, u_scanf_double_handler}
|
|
/* e, E */
|
|
#define UFMT_SCIENTIFIC {ufmt_double, u_scanf_scientific_handler}
|
|
/* g, G */
|
|
#define UFMT_SCIDBL {ufmt_double, u_scanf_scidbl_handler}
|
|
/* n */
|
|
#define UFMT_COUNT {ufmt_count, u_scanf_count_handler}
|
|
/* [ */
|
|
#define UFMT_SCANSET {ufmt_string, u_scanf_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_scanf_pointer_handler}
|
|
/* D */
|
|
#define UFMT_DATE {ufmt_date, u_scanf_date_handler}
|
|
/* T */
|
|
#define UFMT_TIME {ufmt_date, u_scanf_time_handler}
|
|
/* V */
|
|
#define UFMT_SPELLOUT {ufmt_double, u_scanf_spellout_handler}
|
|
/* P */
|
|
#define UFMT_PERCENT {ufmt_double, u_scanf_percent_handler}
|
|
/* M */
|
|
#define UFMT_CURRENCY {ufmt_double, u_scanf_currency_handler}
|
|
/* K */
|
|
#define UFMT_UCHAR {ufmt_uchar, u_scanf_uchar_handler}
|
|
/* U */
|
|
#define UFMT_USTRING {ufmt_ustring, u_scanf_ustring_handler}
|
|
|
|
|
|
#define UFMT_EMPTY {ufmt_empty, NULL}
|
|
|
|
struct u_scanf_info {
|
|
ufmt_type_info info;
|
|
u_scanf_handler handler;
|
|
};
|
|
typedef struct u_scanf_info u_scanf_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_scanf_info g_u_scanf_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_scanf_infos)
|
|
|
|
/* We do not use handlers for 0-0x1f */
|
|
#define USCANF_BASE_FMT_HANDLERS 0x20
|
|
|
|
int32_t
|
|
u_fscanf( UFILE *f,
|
|
const char *patternSpecification,
|
|
... )
|
|
{
|
|
va_list ap;
|
|
int32_t converted;
|
|
|
|
va_start(ap, patternSpecification);
|
|
converted = u_vfscanf(f, patternSpecification, ap);
|
|
va_end(ap);
|
|
|
|
return converted;
|
|
}
|
|
|
|
int32_t
|
|
u_fscanf_u( UFILE *f,
|
|
const UChar *patternSpecification,
|
|
... )
|
|
{
|
|
va_list ap;
|
|
int32_t converted;
|
|
|
|
va_start(ap, patternSpecification);
|
|
converted = u_vfscanf_u(f, patternSpecification, ap);
|
|
va_end(ap);
|
|
|
|
return converted;
|
|
}
|
|
|
|
int32_t
|
|
u_vfscanf( UFILE *f,
|
|
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_vfscanf_u(f, pattern, ap);
|
|
|
|
/* clean up */
|
|
free(pattern);
|
|
|
|
return converted;
|
|
}
|
|
|
|
static int32_t
|
|
u_scanf_skip_leading_ws(UFILE *stream,
|
|
UChar pad)
|
|
{
|
|
UChar c;
|
|
int32_t count = 0;
|
|
|
|
/* skip all leading ws in the stream */
|
|
while( ((c = u_fgetc(stream)) != 0xFFFF) && (c == pad || ufmt_isws(c)) )
|
|
++count;
|
|
|
|
/* put the final character back on the stream */
|
|
if(c != 0xFFFF)
|
|
u_fungetc(c, stream);
|
|
|
|
return count;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_simple_percent_handler(UFILE *stream,
|
|
const u_scanf_spec_info *info,
|
|
ufmt_args *args,
|
|
const UChar *fmt,
|
|
int32_t *consumed)
|
|
{
|
|
/* make sure the next character in the stream is a percent */
|
|
if(u_fgetc(stream) != 0x0025)
|
|
return -1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_string_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_skip_leading_ws(stream, 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 = u_fgetc(stream)) != 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)
|
|
u_fungetc(c, stream);
|
|
|
|
/* add the terminator */
|
|
*alias = 0x00;
|
|
|
|
/* clean up */
|
|
ucnv_close(conv);
|
|
|
|
/* we converted 1 arg */
|
|
return 1;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_ustring_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_skip_leading_ws(stream, info->fPadChar);
|
|
|
|
/* get the string one character at a time, truncating to the width */
|
|
count = 0;
|
|
|
|
while( ((c = u_fgetc(stream)) != 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)
|
|
u_fungetc(c, stream);
|
|
|
|
/* add the terminator */
|
|
*alias = 0x0000;
|
|
|
|
/* we converted 1 arg */
|
|
return 1;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_count_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_spec_info's width */
|
|
/* will contain the # of items converted thus far */
|
|
*converted = info->fWidth;
|
|
|
|
/* we converted 0 args */
|
|
return 0;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_integer_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_skip_leading_ws(stream, info->fPadChar);
|
|
|
|
/* fill the stream's internal buffer */
|
|
ufile_fill_uchar_buffer(stream);
|
|
|
|
/* determine the size of the stream's buffer */
|
|
len = stream->fUCLimit - stream->fUCPos;
|
|
|
|
/* truncate to the width, if specified */
|
|
if(info->fWidth != -1)
|
|
len = ufmt_min(len, info->fWidth);
|
|
|
|
/* get the formatter */
|
|
format = u_locbund_getNumberFormat(stream->fBundle);
|
|
|
|
/* handle error */
|
|
if(format == 0)
|
|
return 0;
|
|
|
|
/* parse the number */
|
|
*num = unum_parse(format, stream->fUCPos, 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 */
|
|
stream->fUCPos += parsePos;
|
|
|
|
/* we converted 1 arg */
|
|
return 1;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_uinteger_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_double_handler(stream, info, &uint_args, fmt, consumed);
|
|
|
|
*num = (uint32_t)currDouble;
|
|
|
|
return converted_args;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_double_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_skip_leading_ws(stream, info->fPadChar);
|
|
|
|
/* fill the stream's internal buffer */
|
|
ufile_fill_uchar_buffer(stream);
|
|
|
|
/* determine the size of the stream's buffer */
|
|
len = stream->fUCLimit - stream->fUCPos;
|
|
|
|
/* truncate to the width, if specified */
|
|
if(info->fWidth != -1)
|
|
len = ufmt_min(len, info->fWidth);
|
|
|
|
/* get the formatter */
|
|
format = u_locbund_getNumberFormat(stream->fBundle);
|
|
|
|
/* handle error */
|
|
if(format == 0)
|
|
return 0;
|
|
|
|
/* parse the number */
|
|
*num = unum_parseDouble(format, stream->fUCPos, len, &parsePos, &status);
|
|
|
|
/* mask off any necessary bits */
|
|
/* if(! info->fIsLong_double)
|
|
num &= DBL_MAX;*/
|
|
|
|
/* update the stream's position to reflect consumed data */
|
|
stream->fUCPos += parsePos;
|
|
|
|
/* we converted 1 arg */
|
|
return 1;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_scientific_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_skip_leading_ws(stream, info->fPadChar);
|
|
|
|
/* fill the stream's internal buffer */
|
|
ufile_fill_uchar_buffer(stream);
|
|
|
|
/* determine the size of the stream's buffer */
|
|
len = stream->fUCLimit - stream->fUCPos;
|
|
|
|
/* truncate to the width, if specified */
|
|
if(info->fWidth != -1)
|
|
len = ufmt_min(len, info->fWidth);
|
|
|
|
/* get the formatter */
|
|
format = u_locbund_getScientificFormat(stream->fBundle);
|
|
|
|
/* handle error */
|
|
if(format == 0)
|
|
return 0;
|
|
|
|
/* parse the number */
|
|
*num = unum_parseDouble(format, stream->fUCPos, len, &parsePos, &status);
|
|
|
|
/* mask off any necessary bits */
|
|
/* if(! info->fIsLong_double)
|
|
num &= DBL_MAX;*/
|
|
|
|
/* update the stream's position to reflect consumed data */
|
|
stream->fUCPos += parsePos;
|
|
|
|
/* we converted 1 arg */
|
|
return 1;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_scidbl_handler(UFILE *stream,
|
|
const u_scanf_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;
|
|
UBool useScientific;
|
|
|
|
|
|
/* 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_scanf_skip_leading_ws(stream, info->fPadChar);
|
|
|
|
/* fill the stream's internal buffer */
|
|
ufile_fill_uchar_buffer(stream);
|
|
|
|
/* determine the size of the stream's buffer */
|
|
len = stream->fUCLimit - stream->fUCPos;
|
|
|
|
/* truncate to the width, if specified */
|
|
if(info->fWidth != -1)
|
|
len = ufmt_min(len, info->fWidth);
|
|
|
|
/* get the formatters */
|
|
scientificFormat = u_locbund_getScientificFormat(stream->fBundle);
|
|
genericFormat = u_locbund_getNumberFormat(stream->fBundle);
|
|
|
|
/* handle error */
|
|
if(scientificFormat == 0 || genericFormat == 0)
|
|
return 0;
|
|
|
|
/* parse the number using each format*/
|
|
|
|
scientificResult = unum_parseDouble(scientificFormat, stream->fUCPos, len,
|
|
&scientificParsePos, &scientificStatus);
|
|
|
|
genericResult = unum_parseDouble(genericFormat, stream->fUCPos, len,
|
|
&genericParsePos, &genericStatus);
|
|
|
|
/* determine which parse made it farther */
|
|
useScientific = (UBool)(scientificParsePos > genericParsePos);
|
|
|
|
/* stash the result in num */
|
|
*num = useScientific ? scientificResult : genericResult;
|
|
|
|
/* mask off any necessary bits */
|
|
/* if(! info->fIsLong_double)
|
|
num &= DBL_MAX;*/
|
|
|
|
/* update the stream's position to reflect consumed data */
|
|
stream->fUCPos += useScientific ? scientificParsePos : genericParsePos;
|
|
|
|
/* we converted 1 arg */
|
|
return 1;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_currency_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_skip_leading_ws(stream, info->fPadChar);
|
|
|
|
/* fill the stream's internal buffer */
|
|
ufile_fill_uchar_buffer(stream);
|
|
|
|
/* determine the size of the stream's buffer */
|
|
len = stream->fUCLimit - stream->fUCPos;
|
|
|
|
/* truncate to the width, if specified */
|
|
if(info->fWidth != -1)
|
|
len = ufmt_min(len, info->fWidth);
|
|
|
|
/* get the formatter */
|
|
format = u_locbund_getCurrencyFormat(stream->fBundle);
|
|
|
|
/* handle error */
|
|
if(format == 0)
|
|
return 0;
|
|
|
|
/* parse the number */
|
|
*num = unum_parseDouble(format, stream->fUCPos, len, &parsePos, &status);
|
|
|
|
/* mask off any necessary bits */
|
|
/* if(! info->fIsLong_double)
|
|
num &= DBL_MAX;*/
|
|
|
|
/* update the stream's position to reflect consumed data */
|
|
stream->fUCPos += parsePos;
|
|
|
|
/* we converted 1 arg */
|
|
return 1;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_percent_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_skip_leading_ws(stream, info->fPadChar);
|
|
|
|
/* fill the stream's internal buffer */
|
|
ufile_fill_uchar_buffer(stream);
|
|
|
|
/* determine the size of the stream's buffer */
|
|
len = stream->fUCLimit - stream->fUCPos;
|
|
|
|
/* truncate to the width, if specified */
|
|
if(info->fWidth != -1)
|
|
len = ufmt_min(len, info->fWidth);
|
|
|
|
/* get the formatter */
|
|
format = u_locbund_getPercentFormat(stream->fBundle);
|
|
|
|
/* handle error */
|
|
if(format == 0)
|
|
return 0;
|
|
|
|
/* parse the number */
|
|
*num = unum_parseDouble(format, stream->fUCPos, len, &parsePos, &status);
|
|
|
|
/* mask off any necessary bits */
|
|
/* if(! info->fIsLong_double)
|
|
num &= DBL_MAX;*/
|
|
|
|
/* update the stream's position to reflect consumed data */
|
|
stream->fUCPos += parsePos;
|
|
|
|
/* we converted 1 arg */
|
|
return 1;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_date_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_skip_leading_ws(stream, info->fPadChar);
|
|
|
|
/* fill the stream's internal buffer */
|
|
ufile_fill_uchar_buffer(stream);
|
|
|
|
/* determine the size of the stream's buffer */
|
|
len = stream->fUCLimit - stream->fUCPos;
|
|
|
|
/* truncate to the width, if specified */
|
|
if(info->fWidth != -1)
|
|
len = ufmt_min(len, info->fWidth);
|
|
|
|
/* get the formatter */
|
|
format = u_locbund_getDateFormat(stream->fBundle);
|
|
|
|
/* handle error */
|
|
if(format == 0)
|
|
return 0;
|
|
|
|
/* parse the number */
|
|
*date = udat_parse(format, stream->fUCPos, len, &parsePos, &status);
|
|
|
|
/* update the stream's position to reflect consumed data */
|
|
stream->fUCPos += parsePos;
|
|
|
|
/* we converted 1 arg */
|
|
return 1;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_time_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_skip_leading_ws(stream, info->fPadChar);
|
|
|
|
/* fill the stream's internal buffer */
|
|
ufile_fill_uchar_buffer(stream);
|
|
|
|
/* determine the size of the stream's buffer */
|
|
len = stream->fUCLimit - stream->fUCPos;
|
|
|
|
/* truncate to the width, if specified */
|
|
if(info->fWidth != -1)
|
|
len = ufmt_min(len, info->fWidth);
|
|
|
|
/* get the formatter */
|
|
format = u_locbund_getTimeFormat(stream->fBundle);
|
|
|
|
/* handle error */
|
|
if(format == 0)
|
|
return 0;
|
|
|
|
/* parse the number */
|
|
*time = udat_parse(format, stream->fUCPos, len, &parsePos, &status);
|
|
|
|
/* update the stream's position to reflect consumed data */
|
|
stream->fUCPos += parsePos;
|
|
|
|
/* we converted 1 arg */
|
|
return 1;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_char_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_skip_leading_ws(stream, info->fPadChar);
|
|
|
|
/* get the character from the stream, truncating to the width */
|
|
if(info->fWidth == -1 || info->fWidth > 1)
|
|
uc = u_fgetc(stream);
|
|
|
|
/* 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_scanf_uchar_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_skip_leading_ws(stream, info->fPadChar);
|
|
|
|
/* get the character from the stream, truncating to the width */
|
|
if(info->fWidth == -1 || info->fWidth > 1)
|
|
*c = u_fgetc(stream);
|
|
|
|
/* handle EOF */
|
|
if(*c == 0xFFFF)
|
|
return -1;
|
|
|
|
/* we converted 1 arg */
|
|
return 1;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_spellout_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_skip_leading_ws(stream, info->fPadChar);
|
|
|
|
/* fill the stream's internal buffer */
|
|
ufile_fill_uchar_buffer(stream);
|
|
|
|
/* determine the size of the stream's buffer */
|
|
len = stream->fUCLimit - stream->fUCPos;
|
|
|
|
/* truncate to the width, if specified */
|
|
if(info->fWidth != -1)
|
|
len = ufmt_min(len, info->fWidth);
|
|
|
|
/* get the formatter */
|
|
format = u_locbund_getSpelloutFormat(stream->fBundle);
|
|
|
|
/* handle error */
|
|
if(format == 0)
|
|
return 0;
|
|
|
|
/* parse the number */
|
|
*num = unum_parseDouble(format, stream->fUCPos, len, &parsePos, &status);
|
|
|
|
/* mask off any necessary bits */
|
|
/* if(! info->fIsLong_double)
|
|
num &= DBL_MAX;*/
|
|
|
|
/* update the stream's position to reflect consumed data */
|
|
stream->fUCPos += parsePos;
|
|
|
|
/* we converted 1 arg */
|
|
return 1;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_hex_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_skip_leading_ws(stream, info->fPadChar);
|
|
|
|
/* fill the stream's internal buffer */
|
|
ufile_fill_uchar_buffer(stream);
|
|
|
|
/* determine the size of the stream's buffer */
|
|
len = stream->fUCLimit - stream->fUCPos;
|
|
|
|
/* truncate to the width, if specified */
|
|
if(info->fWidth != -1)
|
|
len = ufmt_min(len, info->fWidth);
|
|
|
|
/* check for alternate form */
|
|
if( *(stream->fUCPos) == 0x0030 &&
|
|
(*(stream->fUCPos + 1) == 0x0078 || *(stream->fUCPos + 1) == 0x0058) ) {
|
|
|
|
/* skip the '0' and 'x' or 'X' if present */
|
|
stream->fUCPos += 2;
|
|
len -= 2;
|
|
}
|
|
|
|
/* parse the number */
|
|
*num = ufmt_utol(stream->fUCPos, &len, 16);
|
|
|
|
/* update the stream's position to reflect consumed data */
|
|
stream->fUCPos += 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_scanf_octal_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_skip_leading_ws(stream, info->fPadChar);
|
|
|
|
/* fill the stream's internal buffer */
|
|
ufile_fill_uchar_buffer(stream);
|
|
|
|
/* determine the size of the stream's buffer */
|
|
len = stream->fUCLimit - stream->fUCPos;
|
|
|
|
/* truncate to the width, if specified */
|
|
if(info->fWidth != -1)
|
|
len = ufmt_min(len, info->fWidth);
|
|
|
|
/* parse the number */
|
|
*num = ufmt_utol(stream->fUCPos, &len, 8);
|
|
|
|
/* update the stream's position to reflect consumed data */
|
|
stream->fUCPos += 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_scanf_pointer_handler(UFILE *stream,
|
|
const u_scanf_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_scanf_skip_leading_ws(stream, info->fPadChar);
|
|
|
|
/* fill the stream's internal buffer */
|
|
ufile_fill_uchar_buffer(stream);
|
|
|
|
/* determine the size of the stream's buffer */
|
|
len = stream->fUCLimit - stream->fUCPos;
|
|
|
|
/* 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(stream->fUCPos, &len, 16);
|
|
|
|
/* update the stream's position to reflect consumed data */
|
|
stream->fUCPos += len;
|
|
|
|
/* we converted 1 arg */
|
|
return 1;
|
|
}
|
|
|
|
int32_t
|
|
u_scanf_scanset_handler(UFILE *stream,
|
|
const u_scanf_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;
|
|
|
|
|
|
/* fill the stream's internal buffer */
|
|
ufile_fill_uchar_buffer(stream);
|
|
|
|
/* determine the size of the stream's buffer */
|
|
len = stream->fUCLimit - stream->fUCPos;
|
|
|
|
/* 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 = u_fgetc(stream)) != 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)
|
|
u_fungetc(c, stream);
|
|
|
|
/* 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
|
|
|
|
int32_t
|
|
u_vfscanf_u( UFILE *f,
|
|
const UChar *patternSpecification,
|
|
va_list ap)
|
|
{
|
|
u_scanf_spec spec;
|
|
const UChar *alias;
|
|
int32_t count, converted, temp;
|
|
uint16_t handlerNum;
|
|
|
|
ufmt_args args;
|
|
|
|
ufmt_type_info info;
|
|
u_scanf_handler handler;
|
|
|
|
/* alias the pattern */
|
|
alias = patternSpecification;
|
|
|
|
/* haven't converted anything yet */
|
|
converted = 0;
|
|
|
|
/* iterate through the pattern */
|
|
for(;;) {
|
|
|
|
/* match any characters up to the next '%' */
|
|
while(*alias != UP_PERCENT && *alias != 0x0000 && u_fgetc(f) == *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_scanf_parse_spec(alias, &spec);
|
|
|
|
/* update the pointer in pattern */
|
|
alias += count;
|
|
|
|
/* skip the argument, if necessary */
|
|
if(spec.fSkipArg)
|
|
va_arg(ap, int);
|
|
|
|
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_scanf_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_scanf_infos[ handlerNum ].handler;
|
|
if(handler != 0) {
|
|
|
|
/* reset count */
|
|
count = 0;
|
|
|
|
temp = (*handler)(f, &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;
|
|
}
|
|
|