kopia lustrzana https://github.com/weetmuts/wmbusmeters
125 wiersze
3.7 KiB
C++
125 wiersze
3.7 KiB
C++
/*
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Copyright (C) 2021-2022 Fredrik Öhrström (gpl-3.0-or-later)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef TRANSLATEBITS_H
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#define TRANSLATEBITS_H
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#include<cstdint>
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#include<string>
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#include<vector>
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#include"util.h"
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struct TriggerBits
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{
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TriggerBits() : bits_(0) {}
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TriggerBits(uint64_t b) : bits_(b) {}
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int intValue() const { return bits_; }
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bool operator==(const TriggerBits &tb) const { return bits_ == tb.bits_; }
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bool operator!=(const TriggerBits &tb) const { return bits_ != tb.bits_; }
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private:
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uint64_t bits_;
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};
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extern TriggerBits AlwaysTrigger;
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struct MaskBits
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{
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MaskBits() : bits_(0) {}
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MaskBits(uint64_t b) : bits_(b) {}
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int intValue() { return bits_; }
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bool operator==(const MaskBits &tb) const { return bits_ == tb.bits_; }
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bool operator!=(const MaskBits &tb) const { return bits_ != tb.bits_; }
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private:
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uint64_t bits_;
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};
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extern MaskBits AutoMask;
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struct DefaultMessage
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{
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DefaultMessage() : message_("") {}
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DefaultMessage(std::string m) : message_(m) {}
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const std::string &stringValue() { return message_; }
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bool operator==(const DefaultMessage &dm) const { return message_ == dm.message_; }
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bool operator!=(const DefaultMessage &dm) const { return message_ != dm.message_; }
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private:
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std::string message_;
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};
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namespace Translate
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{
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enum class MapType
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{
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Unknown,
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BitToString, // A bit translates to a text string.
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IndexToString, // A masked set of bits (a number) translates to a lookup index with text strings.
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DecimalsToString // Numbers are successively subtracted from input, each successfull subtraction translate into a text string.
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};
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struct Map
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{
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uint64_t from;
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std::string to;
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TestBit test;
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Map(uint64_t f, std::string t, TestBit b) : from(f), to(t), test(b) {};
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Map(uint64_t f, std::string t) : from(f), to(t), test(TestBit::Set) {};
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};
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struct Rule
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{
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std::string name;
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MapType type;
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TriggerBits trigger; // Bits that must be set.
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MaskBits mask; // Bits to be used are set as 1.
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DefaultMessage default_message; // If no bits are set print this, typically "OK" or "".
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std::vector<Map> map;
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Rule() {};
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Rule(std::string n, MapType t, TriggerBits tr, MaskBits mb, std::string dm, std::vector<Map> m)
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: name(n), type(t), trigger(tr), mask(mb), default_message(dm), map(m) {}
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Rule(std::string n, MapType t) :
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name(n), type(t), trigger(AlwaysTrigger), mask(AutoMask), default_message(DefaultMessage("")) {}
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Rule &set(TriggerBits t) { trigger = t; return *this; }
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Rule &set(MaskBits m) { mask = m; return *this; }
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Rule &set(DefaultMessage m) { default_message = m; return *this; }
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Rule &add(Map m) { map.push_back(m); return *this; }
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};
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struct Lookup
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{
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std::vector<Rule> rules;
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std::string translate(uint64_t bits);
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bool hasLookups() { return rules.size() > 0; }
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Lookup &add(Rule r) { rules.push_back(r); return *this; }
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std::string str();
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};
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};
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Translate::MapType toMapType(const char *s);
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extern Translate::Lookup NoLookup;
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#endif
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