Generic SmartRest library
Dependents: SmartRestUnitTest MbedSmartRest MbedSmartRestStreaming
Diff: ParsedValue.cpp
- Revision:
- 0:744801d5734d
diff -r 000000000000 -r 744801d5734d ParsedValue.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ParsedValue.cpp Mon Mar 24 09:57:40 2014 +0000 @@ -0,0 +1,128 @@ +/* + * ParsedValue.cpp + * + * Created on: Nov 1, 2013 + * * Authors: Vincent Wochnik <v.wochnik@gmail.com> + * + * Copyright (c) 2013 Cumulocity GmbH + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "ParsedValue.h" +#include "NullValue.h" +#include "IntegerValue.h" +#include "FloatValue.h" +#include "CharValue.h" +#include <stdio.h> +#include <string.h> +#include <ctype.h> + +ParsedValue::ParsedValue(const char *str, bool copy) : _value(str, copy) +{ + if (_value.valueType() != VALUE_NULL) { + _type = VALUE_CHARACTER; + extractValue(); + } else { + _type = VALUE_NULL; + } +} + +uint8_t ParsedValue::valueType() const +{ + return _type; +} + +long ParsedValue::integerValue() const +{ + if (_type != VALUE_INTEGER) + return 0; + return _integer; +} + +double ParsedValue::floatValue() const +{ + if (_type != VALUE_FLOAT) + return 0.0; + return _float; +} + +const char * ParsedValue::characterValue() const +{ + if (_type != VALUE_CHARACTER) + return NULL; + return _value.characterValue(); +} + +size_t ParsedValue::write(AbstractDataSink& sink) const +{ + return _value.write(sink); +} + +size_t ParsedValue::length() const +{ + return _value.length(); +} + +Value* ParsedValue::copy() const +{ + if (_type == VALUE_NULL) + return new NullValue(); + if (_type == VALUE_INTEGER) + return new IntegerValue(_integer); + if (_type == VALUE_FLOAT) + return new FloatValue(_float, _digits, _zflag); + return new CharValue(_value.characterValue(), true); +} + +void ParsedValue::extractValue() +{ + int len; + const char *str = _value.characterValue(); + + sscanf(str, "%li%n", &_integer, &len); + if ((size_t)len == strlen(str)) { + _type = VALUE_INTEGER; + return; + } + + sscanf(str, "%lf%n", &_float, &len); + if ((size_t)len == strlen(str)) { + bool floating = false; + _digits = 0; + _zflag = false; + for (char c, *ptr = (char*)str; (c = *ptr) > 0; ptr++) { + if (floating) { + if (c == '.') + return; + _digits++; + } else { + if (c == '.') + floating = true; + else if (isdigit(c)) + _zflag = true; + } + } + if (!((floating) && (!_digits))) { + _type = VALUE_FLOAT; + return; + } + } +}