hyung-hwan
81cbac9e4d
added qse_awk_wcsxtoflt()/qse_awk_mbsxtoflt() and made qse_awk_strxtoflt() a macro enhanced qse_awk_rtx_valtonum() to handle a byte array
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
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int awk_rtx_strtonum (qse_awk_rtx_t* rtx, int option, const char_t* ptr, qse_size_t len, qse_awk_int_t* l, qse_awk_flt_t* r)
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{
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const char_t* endptr;
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const char_t* end;
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int strict = QSE_AWK_RTX_STRTONUM_GET_OPTION_STRICT(option);
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int base = QSE_AWK_RTX_STRTONUN_GET_OPTION_BASE(option);
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end = ptr + len;
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*l = awk_strxtoint(rtx->awk, ptr, len, base, &endptr);
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if (endptr < end)
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{
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if (*endptr == _T('.') || *endptr == _T('E') || *endptr == _T('e'))
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{
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handle_float:
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*r = awk_strxtoflt(rtx->awk, ptr, len, &endptr);
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if (strict && endptr < end) return -1;
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return 1; /* flt */
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}
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else if (AWK_ISDIGIT(awk, *endptr))
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{
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const char_t* p = endptr;
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do { p++; } while (p < end && AWK_ISDIGIT(awk, *p));
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if (p < end && (*p == _T('.') || *p == _T('E') || *p == _T('e')))
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{
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/* it's probably an floating-point number.
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*
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* BEGIN { b=99; printf "%f\n", (0 b 1.112); }
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*
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* for the above code, this function gets '0991.112'.
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* and endptr points to '9' after qse_awk_strxtoint() as
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* the numeric string beginning with 0 is treated
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* as an octal number.
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*
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* getting side-tracked,
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* BEGIN { b=99; printf "%f\n", (0 b 1.000); }
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* the above code cause this function to get 0991, not 0991.000
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* because of the default CONVFMT '%.6g' which doesn't produce '.000'.
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* so such a number is not treated as a floating-point number.
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*/
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goto handle_float;
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}
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}
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}
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if (strict && endptr < end) return -1;
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return 0; /* int */
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}
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