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function hex2int(str, i) { str = tolower(str) for (i = 1; i <= 16; i++) { char = substr("0123456789abcdef", i, 1) lookup[char] = i-1 } result = 0 for (i = 1; i <= length(str); i++) { result = result * 16 char = substr(str, i, 1) result = result + lookup[char] } return result } function parse_const(str) { sign = sub(/^-/, "", str) hex = sub(/^0x/, "", str) if (hex) n = hex2int(str) else n = str+0 return sign ? -n : n } |