Files
EMS-ESP32/src/helpers.h

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3.4 KiB
C++

/*
* EMS-ESP - https://github.com/proddy/EMS-ESP
* Copyright 2020 Paul Derbyshire
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef EMSESP_HELPERS_H
#define EMSESP_HELPERS_H
#include <Arduino.h>
#include "telegram.h" // for EMS_VALUE_* settings
enum { BOOL_FORMAT_ONOFF = 1, BOOL_FORMAT_TRUEFALSE, BOOL_FORMAT_NUMBERS }; // matches Web UI settings
// #define FJSON(x) x
#define FJSON(x) F(x)
namespace emsesp {
using flash_string_vector = std::vector<const __FlashStringHelper *>;
class Helpers {
public:
static char * render_value(char * result, const float value, const uint8_t format); // format is the precision
static char * render_value(char * result, const uint8_t value, const uint8_t format);
static char * render_value(char * result, const int8_t value, const uint8_t format);
static char * render_value(char * result, const uint16_t value, const uint8_t format);
static char * render_value(char * result, const uint32_t value, const uint8_t format);
static char * render_value(char * result, const int16_t value, const uint8_t format);
static char * render_value(char * result, const char * value, uint8_t format);
static char * render_boolean(char * result, bool value);
static char * hextoa(char * result, const uint8_t value);
static std::string data_to_hex(const uint8_t * data, const uint8_t length);
static char * smallitoa(char * result, const uint8_t value);
static char * smallitoa(char * result, const uint16_t value);
static char * itoa(char * result, int32_t value, const uint8_t base = 10);
static uint32_t hextoint(const char * hex);
static uint16_t atoint(const char * value);
static bool check_abs(const int32_t i);
static double round2(double value, const uint8_t divider);
static std::string toLower(std::string const & s);
static bool hasValue(const uint8_t & v, const uint8_t isBool = 0);
static bool hasValue(const int8_t & v);
static bool hasValue(const int16_t & v);
static bool hasValue(const uint16_t & v);
static bool hasValue(const uint32_t & v);
static bool hasValue(char * v);
static bool value2number(const char * v, int & value);
static bool value2float(const char * v, float & value);
static bool value2bool(const char * v, bool & value);
static bool value2string(const char * v, std::string & value);
static bool value2enum(const char * v, uint8_t & value, const flash_string_vector & strs);
static void bool_format(uint8_t bool_format) {
bool_format_ = bool_format;
}
static uint8_t bool_format() {
return bool_format_;
}
#ifdef EMSESP_STANDALONE
static char * ultostr(char * ptr, uint32_t value, const uint8_t base);
#endif
private:
static uint8_t bool_format_;
};
} // namespace emsesp
#endif