static int32_t
u_scanf_integer_handler(UFILE *input,
u_scanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *fmtConsumed,
int32_t *argConverted)
{
int32_t len;
void *num = (void*) (args[0].ptrValue);
UNumberFormat *format;
int32_t parsePos = 0;
int32_t skipped;
UErrorCode status = U_ZERO_ERROR;
int64_t result;
/* skip all ws in the input */
skipped = u_scanf_skip_leading_ws(input, info->fPadChar);
/* fill the input's internal buffer */
ufile_fill_uchar_buffer(input);
/* determine the size of the input's buffer */
len = (int32_t)(input->str.fLimit - input->str.fPos);
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* get the formatter */
format = u_locbund_getNumberFormat(&input->str.fBundle, UNUM_DECIMAL);
/* handle error */
if(format == 0)
return 0;
/* Skip the positive prefix. ICU normally can't handle this due to strict parsing. */
skipped += u_scanf_skip_leading_positive_sign(input, format, &status);
/* parse the number */
result = unum_parseInt64(format, input->str.fPos, len, &parsePos, &status);
/* mask off any necessary bits */
if (!info->fSkipArg) {
if (info->fIsShort)
*(int16_t*)num = (int16_t)(UINT16_MAX & result);
else if (info->fIsLongLong)
*(int64_t*)num = result;
else
*(int32_t*)num = (int32_t)(UINT32_MAX & result);
}
/* update the input's position to reflect consumed data */
input->str.fPos += parsePos;
/* we converted 1 arg */
*argConverted = !info->fSkipArg;
return parsePos + skipped;
}
static int32_t
u_scanf_percent_handler(UFILE *input,
u_scanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *fmtConsumed,
int32_t *argConverted)
{
int32_t len;
double num;
UNumberFormat *format;
int32_t parsePos = 0;
int32_t skipped;
UErrorCode status = U_ZERO_ERROR;
/* skip all ws in the input */
skipped = u_scanf_skip_leading_ws(input, info->fPadChar);
/* fill the input's internal buffer */
ufile_fill_uchar_buffer(input);
/* determine the size of the input's buffer */
len = (int32_t)(input->str.fLimit - input->str.fPos);
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* get the formatter */
format = u_locbund_getNumberFormat(&input->str.fBundle, UNUM_PERCENT);
/* handle error */
if(format == 0)
return 0;
/* Skip the positive prefix. ICU normally can't handle this due to strict parsing. */
skipped += u_scanf_skip_leading_positive_sign(input, format, &status);
/* parse the number */
num = unum_parseDouble(format, input->str.fPos, len, &parsePos, &status);
if (!info->fSkipArg) {
*(double*)(args[0].ptrValue) = num;
}
/* mask off any necessary bits */
/* if(! info->fIsLong_double)
num &= DBL_MAX;*/
/* update the input's position to reflect consumed data */
input->str.fPos += parsePos;
/* we converted 1 arg */
*argConverted = !info->fSkipArg;
return parsePos;
}
static int32_t
u_scanf_scidbl_handler(UFILE *input,
u_scanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *fmtConsumed,
int32_t *argConverted)
{
int32_t len;
double num;
UNumberFormat *scientificFormat, *genericFormat;
/*int32_t scientificResult, genericResult;*/
double scientificResult, genericResult;
int32_t scientificParsePos = 0, genericParsePos = 0, parsePos = 0;
int32_t skipped;
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 input */
skipped = u_scanf_skip_leading_ws(input, info->fPadChar);
/* fill the input's internal buffer */
ufile_fill_uchar_buffer(input);
/* determine the size of the input's buffer */
len = (int32_t)(input->str.fLimit - input->str.fPos);
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* get the formatters */
scientificFormat = u_locbund_getNumberFormat(&input->str.fBundle, UNUM_SCIENTIFIC);
genericFormat = u_locbund_getNumberFormat(&input->str.fBundle, UNUM_DECIMAL);
/* handle error */
if(scientificFormat == 0 || genericFormat == 0)
return 0;
/* Skip the positive prefix. ICU normally can't handle this due to strict parsing. */
skipped += u_scanf_skip_leading_positive_sign(input, genericFormat, &genericStatus);
/* parse the number using each format*/
scientificResult = unum_parseDouble(scientificFormat, input->str.fPos, len,
&scientificParsePos, &scientificStatus);
genericResult = unum_parseDouble(genericFormat, input->str.fPos, len,
&genericParsePos, &genericStatus);
/* determine which parse made it farther */
if(scientificParsePos > genericParsePos) {
/* stash the result in num */
num = scientificResult;
/* update the input's position to reflect consumed data */
parsePos += scientificParsePos;
}
else {
/* stash the result in num */
num = genericResult;
/* update the input's position to reflect consumed data */
parsePos += genericParsePos;
}
input->str.fPos += parsePos;
if (!info->fSkipArg) {
if (info->fIsLong)
*(double*)(args[0].ptrValue) = num;
else if (info->fIsLongDouble)
*(long double*)(args[0].ptrValue) = num;
else
*(float*)(args[0].ptrValue) = (float)num;
}
/* mask off any necessary bits */
/* if(! info->fIsLong_double)
num &= DBL_MAX;*/
/* we converted 1 arg */
*argConverted = !info->fSkipArg;
return parsePos + skipped;
}
static int32_t
u_scanf_scientific_handler(UFILE *input,
u_scanf_spec_info *info,
ufmt_args *args,
const UChar *fmt,
int32_t *fmtConsumed,
int32_t *argConverted)
{
int32_t len;
double num;
UNumberFormat *format;
int32_t parsePos = 0;
int32_t skipped;
UErrorCode status = U_ZERO_ERROR;
UChar srcExpBuf[UPRINTF_SYMBOL_BUFFER_SIZE];
int32_t srcLen, expLen;
UChar expBuf[UPRINTF_SYMBOL_BUFFER_SIZE];
/* skip all ws in the input */
skipped = u_scanf_skip_leading_ws(input, info->fPadChar);
/* fill the input's internal buffer */
ufile_fill_uchar_buffer(input);
/* determine the size of the input's buffer */
len = (int32_t)(input->str.fLimit - input->str.fPos);
/* truncate to the width, if specified */
if(info->fWidth != -1)
len = ufmt_min(len, info->fWidth);
/* get the formatter */
format = u_locbund_getNumberFormat(&input->str.fBundle, 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,
input->str.fBundle.fLocale,
&status);
}
else {
expLen = u_strToUpper(expBuf, (int32_t)sizeof(expBuf),
srcExpBuf, srcLen,
input->str.fBundle.fLocale,
&status);
}
unum_setSymbol(format,
UNUM_EXPONENTIAL_SYMBOL,
expBuf,
expLen,
&status);
/* Skip the positive prefix. ICU normally can't handle this due to strict parsing. */
skipped += u_scanf_skip_leading_positive_sign(input, format, &status);
/* parse the number */
num = unum_parseDouble(format, input->str.fPos, len, &parsePos, &status);
if (!info->fSkipArg) {
if (info->fIsLong)
*(double*)(args[0].ptrValue) = num;
else if (info->fIsLongDouble)
*(long double*)(args[0].ptrValue) = num;
else
*(float*)(args[0].ptrValue) = (float)num;
}
/* mask off any necessary bits */
/* if(! info->fIsLong_double)
num &= DBL_MAX;*/
/* update the input's position to reflect consumed data */
input->str.fPos += parsePos;
/* we converted 1 arg */
*argConverted = !info->fSkipArg;
return parsePos + skipped;
}
