2161 lines
64 KiB
C++
2161 lines
64 KiB
C++
/**
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* This file is part of JS8Call.
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*
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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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*
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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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*
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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 <https://www.gnu.org/licenses/>.
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*
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* (C) 2018 Jordan Sherer <kn4crd@gmail.com> - All Rights Reserved
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*
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**/
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#include <QDebug>
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#include <QMap>
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#include <QSet>
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#define CRCPP_INCLUDE_ESOTERIC_CRC_DEFINITIONS
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#include "crc.h"
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#include "varicode.h"
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#include "jsc.h"
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#include "decodedtext.h"
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#include <cmath>
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const int nalphabet = 41;
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QString alphabet = {"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ+-./?"}; // alphabet to encode _into_ for FT8 freetext transmission
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QString alphabet72 = {"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-+/?."};
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QString grid_pattern = {R"((?<grid>[A-X]{2}[0-9]{2}(?:[A-X]{2}(?:[0-9]{2})?)*)+)"};
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QString orig_compound_callsign_pattern = {R"((?<callsign>(\d|[A-Z])+\/?((\d|[A-Z]){2,})(\/(\d|[A-Z])+)?(\/(\d|[A-Z])+)?))"};
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QString base_callsign_pattern = {R"((?<callsign>\b(?<base>([0-9A-Z])?([0-9A-Z])([0-9])([A-Z])?([A-Z])?([A-Z])?)(?<portable>[/][P])?\b))"};
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//QString compound_callsign_pattern = {R"((?<callsign>\b(?<prefix>[A-Z0-9]{1,4}\/)?(?<base>([0-9A-Z])?([0-9A-Z])([0-9])([A-Z])?([A-Z])?([A-Z])?)(?<suffix>\/[A-Z0-9]{1,4})?)\b)"};
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QString compound_callsign_pattern = {R"((?<callsign>(?:[@]?|\b)(?<extended>[A-Z0-9\/@][A-Z0-9\/]{0,2}[\/]?[A-Z0-9\/]{0,3}[\/]?[A-Z0-9\/]{0,3})\b))"};
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QString pack_callsign_pattern = {R"(([0-9A-Z ])([0-9A-Z])([0-9])([A-Z ])([A-Z ])([A-Z ]))"};
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QString alphanumeric = {"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ /@"}; // callsign and grid alphabet
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QMap<QString, int> directed_cmds = {
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// any changes here need to be made also in the directed regular xpression for parsing
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// ?*^&@
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{" HB", -1 }, // this is my heartbeat (unused except for faux processing of HBs as directed commands)
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{" SNR?", 0 }, // query snr
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{"?", 0 }, // compat
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{" DIT DIT", 1 }, // unused
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{" NACK", 2 }, // negative acknowledge
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{" HEARING?", 3 }, // query station calls heard
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{" GRID?", 4 }, // query grid
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{">", 5 }, // relay message
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{" STATUS?", 6 }, // query idle message
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{" STATUS", 7 }, // this is my status
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{" HEARING", 8 }, // these are the stations i'm hearing
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{" MSG", 9 }, // this is a complete message
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{" MSG TO:", 10 }, // store message at a station
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{" QUERY", 11 }, // generic query
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{" QUERY MSGS", 12 }, // do you have any stored messages?
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{" QUERY MSGS?", 12 }, // do you have any stored messages?
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{" QUERY CALL", 13 }, // can you transmit a ping to callsign?
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// {" ", 14 }, // reserved
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{" GRID", 15 }, // this is my current grid locator
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{" INFO?", 16 }, // what is your info message?
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{" INFO", 17 }, // this is my info message
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{" FB", 18 }, // fine business
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{" HW CPY?", 19 }, // how do you copy?
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{" SK", 20 }, // end of contact
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{" RR", 21 }, // roger roger
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{" QSL?", 22 }, // do you copy?
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{" QSL", 23 }, // i copy
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{" CMD", 24 }, // command
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{" SNR", 25 }, // seen a station at the provided snr
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{" NO", 26 }, // negative confirm
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{" YES", 27 }, // confirm
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{" 73", 28 }, // best regards, end of contact
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{" ACK", 29 }, // acknowledge
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{" AGN?", 30 }, // repeat message
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{" ", 31 }, // send freetext (weird artifact)
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{" ", 31 }, // send freetext
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};
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// commands allowed to be processed
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QSet<int> allowed_cmds = {-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, /*14,*/ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31};
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// commands that result in an autoreply (which can be relayed)
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QSet<int> autoreply_cmds = {0, 3, 4, 6, 9, 10, 11, 12, 13, 16, 30};
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// commands that should be buffered
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QSet<int> buffered_cmds = {5, 9, 10, 11, 12, 13, 15, 24};
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// commands that may include an SNR value
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QSet<int> snr_cmds = {25, 29};
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// commands that are checksummed and their crc size
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QMap<int, int> checksum_cmds = {
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{ 5, 16 },
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{ 9, 16 },
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{ 10, 16 },
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{ 11, 16 },
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{ 12, 16 },
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{ 13, 16 },
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{ 15, 0 },
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{ 24, 16 }
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};
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QString callsign_pattern = QString("(?<callsign>[@]?[A-Z0-9/]+)");
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QString optional_cmd_pattern = QString("(?<cmd>\\s?(?:AGN[?]|QSL[?]|HW CPY[?]|MSG TO[:]|SNR[?]|INFO[?]|GRID[?]|STATUS[?]|QUERY MSGS[?]|HEARING[?]|(?:(?:STATUS|HEARING|QUERY CALL|QUERY MSGS|QUERY|CMD|MSG|NACK|ACK|73|YES|NO|SNR|QSL|RR|SK|FB|INFO|GRID|DIT DIT)(?=[ ]|$))|[?> ]))?");
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QString optional_grid_pattern = QString("(?<grid>\\s?[A-R]{2}[0-9]{2})?");
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QString optional_extended_grid_pattern = QString("^(?<grid>\\s?(?:[A-R]{2}[0-9]{2}(?:[A-X]{2}(?:[0-9]{2})?)*))?");
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QString optional_num_pattern = QString("(?<num>(?<=SNR|\\bACK)\\s?[-+]?(?:3[01]|[0-2]?[0-9]))?");
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QRegularExpression directed_re("^" +
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callsign_pattern +
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optional_cmd_pattern +
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optional_num_pattern);
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QRegularExpression heartbeat_re(R"(^\s*(?<type>CQ CQ CQ|CQ DX|CQ QRP|CQ CONTEST|CQ FIELD|CQ FD|CQ CQ|CQ|HB( AUTO)?( RELAY)?( SPOT)?)(?:\s(?<grid>[A-R]{2}[0-9]{2}))?\b)");
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QRegularExpression compound_re("^\\s*[`]" +
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callsign_pattern +
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"(?<extra>" +
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optional_grid_pattern + // there's a reason this is first (see: buildMessageFrames)
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optional_cmd_pattern +
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optional_num_pattern +
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")");
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QMap<QString, QString> hufftable = {
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// char code weight
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{ " " , "01" }, // 1.0
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{ "E" , "100" }, // 0.5
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{ "T" , "1101" }, // 0.333333333333
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{ "A" , "0011" }, // 0.25
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{ "O" , "11111" }, // 0.2
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{ "I" , "11100" }, // 0.166666666667
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{ "N" , "10111" }, // 0.142857142857
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{ "S" , "10100" }, // 0.125
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{ "H" , "00011" }, // 0.111111111111
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{ "R" , "00000" }, // 0.1
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{ "D" , "111011" }, // 0.0909090909091
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{ "L" , "110011" }, // 0.0833333333333
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{ "C" , "110001" }, // 0.0769230769231
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{ "U" , "101101" }, // 0.0714285714286
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{ "M" , "101011" }, // 0.0666666666667
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{ "W" , "001011" }, // 0.0625
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{ "F" , "001001" }, // 0.0588235294118
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{ "G" , "000101" }, // 0.0555555555556
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{ "Y" , "000011" }, // 0.0526315789474
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{ "P" , "1111011" }, // 0.05
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{ "B" , "1111001" }, // 0.047619047619
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{ "." , "1110100" }, // 0.0434782608696
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{ "V" , "1100101" }, // 0.0416666666667
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{ "K" , "1100100" }, // 0.04
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{ "-" , "1100001" }, // 0.0384615384615
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{ "+" , "1100000" }, // 0.037037037037
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{ "?" , "1011001" }, // 0.0344827586207
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{ "!" , "1011000" }, // 0.0333333333333
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{"\"" , "1010101" }, // 0.0322580645161
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{ "X" , "1010100" }, // 0.03125
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{ "0" , "0010101" }, // 0.030303030303
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{ "J" , "0010100" }, // 0.0294117647059
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{ "1" , "0010001" }, // 0.0285714285714
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{ "Q" , "0010000" }, // 0.0277777777778
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{ "2" , "0001001" }, // 0.027027027027
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{ "Z" , "0001000" }, // 0.0263157894737
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{ "3" , "0000101" }, // 0.025641025641
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{ "5" , "0000100" }, // 0.025
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{ "4" , "11110101" }, // 0.0243902439024
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{ "9" , "11110100" }, // 0.0238095238095
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{ "8" , "11110001" }, // 0.0232558139535
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{ "6" , "11110000" }, // 0.0227272727273
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{ "7" , "11101011" }, // 0.0222222222222
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{ "/" , "11101010" }, // 0.0217391304348
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};
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QChar ESC = '\\'; // Escape char
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QChar EOT = '\x04'; // EOT char
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quint32 nbasecall = 37 * 36 * 10 * 27 * 27 * 27;
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quint16 nbasegrid = 180 * 180;
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quint16 nusergrid = nbasegrid + 10;
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quint16 nmaxgrid = (1<<15)-1;
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QMap<QString, quint32> basecalls = {
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{ "<....>", nbasecall + 1 }, // incomplete callsign
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{ "@ALLCALL", nbasecall + 2 }, // ALLCALL group
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{ "@JS8NET", nbasecall + 3 }, // JS8NET group
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// continental dx
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{ "@DX/NA", nbasecall + 4 }, // North America DX group
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{ "@DX/SA", nbasecall + 5 }, // South America DX group
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{ "@DX/EU", nbasecall + 6 }, // Europe DX group
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{ "@DX/AS", nbasecall + 7 }, // Asia DX group
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{ "@DX/AF", nbasecall + 8 }, // Africa DX group
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{ "@DX/OC", nbasecall + 9 }, // Oceania DX group
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{ "@DX/AN", nbasecall + 10 }, // Antarctica DX group
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// itu regions
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{ "@REGION/1", nbasecall + 11 }, // ITU Region 1
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{ "@REGION/2", nbasecall + 12 }, // ITU Region 2
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{ "@REGION/3", nbasecall + 13 }, // ITU Region 3
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// generic
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{ "@GROUP/0", nbasecall + 14 }, // Generic group
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{ "@GROUP/1", nbasecall + 15 }, // Generic group
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{ "@GROUP/2", nbasecall + 16 }, // Generic group
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{ "@GROUP/3", nbasecall + 17 }, // Generic group
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{ "@GROUP/4", nbasecall + 18 }, // Generic group
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{ "@GROUP/5", nbasecall + 19 }, // Generic group
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{ "@GROUP/6", nbasecall + 20 }, // Generic group
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{ "@GROUP/7", nbasecall + 21 }, // Generic group
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{ "@GROUP/8", nbasecall + 22 }, // Generic group
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{ "@GROUP/9", nbasecall + 23 }, // Generic group
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// ops
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{ "@COMMAND", nbasecall + 24 }, // Command group
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{ "@CONTROL", nbasecall + 25 }, // Control group
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{ "@NET", nbasecall + 26 }, // Net group
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{ "@NTS", nbasecall + 27 }, // NTS group
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// reserved groups
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{ "@RESERVE/0", nbasecall + 28 }, // Reserved
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{ "@RESERVE/1", nbasecall + 29 }, // Reserved
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{ "@RESERVE/2", nbasecall + 30 }, // Reserved
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{ "@RESERVE/3", nbasecall + 31 }, // Reserved
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{ "@RESERVE/4", nbasecall + 32 }, // Reserved
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// special groups
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{ "@APRSIS", nbasecall + 33 }, // APRS GROUP
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{ "@RAGCHEW", nbasecall + 34 }, // RAGCHEW GROUP
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{ "@JS8", nbasecall + 35 }, // JS8 GROUP
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{ "@EMCOMM", nbasecall + 36 }, // EMCOMM GROUP
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{ "@ARES", nbasecall + 37 }, // ARES GROUP
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{ "@MARS", nbasecall + 38 }, // MARS GROUP
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{ "@AMRRON", nbasecall + 39 }, // AMRRON GROUP
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{ "@RACES", nbasecall + 40 }, // RACES GROUP
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{ "@RAYNET", nbasecall + 41 }, // RAYNET GROUP
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{ "@RADAR", nbasecall + 42 }, // RADAR GROUP
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};
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QMap<quint32, QString> cqs = {
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{ 0, "CQ CQ CQ" },
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{ 1, "CQ DX" },
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{ 2, "CQ QRP" },
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{ 3, "CQ CONTEST" },
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{ 4, "CQ FIELD" },
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{ 5, "CQ FD"},
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{ 6, "CQ CQ"},
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{ 7, "CQ"},
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};
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QMap<quint32, QString> hbs = {
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{ 0, "HB" }, // HB
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{ 1, "HB AUTO" }, // HB AUTO
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{ 2, "HB AUTO RELAY" }, // HB AUTO RELAY
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{ 3, "HB AUTO RELAY SPOT" }, // HB AUTO RELAY SPOT
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{ 7, "HB AUTO SPOT"}, // HB AUTO SPOT
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{ 4, "HB RELAY" }, // HB RELAY
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{ 5, "HB RELAY SPOT" }, // HB RELAY SPOT
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{ 6, "HB SPOT" }, // HB SPOT
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};
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QMap<int, int> dbm2mw = {
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{0 , 1}, // 1mW
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{3 , 2}, // 2mW
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{7 , 5}, // 5mW
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{10 , 10}, // 10mW
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{13 , 20}, // 20mW
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{17 , 50}, // 50mW
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{20 , 100}, // 100mW
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{23 , 200}, // 200mW
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{27 , 500}, // 500mW
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{30 , 1000}, // 1W
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{33 , 2000}, // 2W
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{37 , 5000}, // 5W
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{40 , 10000}, // 10W
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{43 , 20000}, // 20W
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{47 , 50000}, // 50W
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{50 , 100000}, // 100W
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{53 , 200000}, // 200W
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{57 , 500000}, // 500W
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{60 , 1000000}, // 1000W
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};
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/*
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* UTILITIES
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*/
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int mwattsToDbm(int mwatts){
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int dbm = 0;
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auto values = dbm2mw.values();
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qSort(values);
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foreach(auto mw, values){
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if(mw < mwatts){ continue; }
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dbm = dbm2mw.key(mw);
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break;
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}
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return dbm;
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}
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int dbmTomwatts(int dbm){
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if(dbm2mw.contains(dbm)){
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return dbm2mw[dbm];
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}
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auto iter = dbm2mw.lowerBound(dbm);
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if(iter == dbm2mw.end()){
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return dbm2mw.last();
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}
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return iter.value();
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}
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QString Varicode::escape(const QString &text){
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// TODO: support different escapes?
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return text;
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}
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QString Varicode::unescape(const QString &text){
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// TODO: support different escapes?
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return text;
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}
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QString Varicode::rstrip(const QString& str) {
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int n = str.size() - 1;
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for (; n >= 0; --n) {
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if (str.at(n).isSpace()) {
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continue;
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}
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return str.left(n + 1);
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}
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return "";
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}
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QString Varicode::lstrip(const QString& str) {
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int len = str.size();
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for (int n = 0; n < len; n++) {
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if(str.at(n).isSpace()){
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continue;
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}
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return str.mid(n);
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}
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return "";
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}
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/*
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* VARICODE
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*/
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QMap<QString, QString> Varicode::defaultHuffTable(){
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return hufftable;
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}
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QString Varicode::cqString(int number){
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if(!cqs.contains(number)){
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return QString{};
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}
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return cqs[number];
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}
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QString Varicode::hbString(int number){
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if(!hbs.contains(number)){
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return QString{};
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}
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return hbs[number];
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}
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bool Varicode::startsWithCQ(QString text){
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foreach(auto cq, cqs.values()){
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if(text.startsWith(cq)){
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return true;
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}
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}
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return false;
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}
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bool Varicode::startsWithHB(QString text){
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foreach(auto hb, hbs.values()){
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if(text.startsWith(hb)){
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return true;
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}
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}
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return false;
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}
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QString Varicode::formatSNR(int snr){
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if(snr < -60 || snr > 60){
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return QString();
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}
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return QString("%1%2").arg(snr >= 0 ? "+" : "").arg(snr, snr < 0 ? 3 : 2, 10, QChar('0'));
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}
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QString Varicode::checksum16(QString const &input){
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auto fromBytes = input.toLocal8Bit();
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auto crc = CRC::Calculate(fromBytes.data(), fromBytes.length(), CRC::CRC_16_KERMIT());
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auto checksum = Varicode::pack16bits(crc);
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if(checksum.length() < 3){
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checksum += QString(" ").repeated(3-checksum.length());
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}
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return checksum;
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}
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bool Varicode::checksum16Valid(QString const &checksum, QString const &input){
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auto fromBytes = input.toLocal8Bit();
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auto crc = CRC::Calculate(fromBytes.data(), fromBytes.length(), CRC::CRC_16_KERMIT());
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return Varicode::pack16bits(crc) == checksum;
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}
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QString Varicode::checksum32(QString const &input){
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auto fromBytes = input.toLocal8Bit();
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auto crc = CRC::Calculate(fromBytes.data(), fromBytes.length(), CRC::CRC_32_BZIP2());
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auto checksum = Varicode::pack32bits(crc);
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if(checksum.length() < 6){
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checksum += QString(" ").repeated(6-checksum.length());
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}
|
|
return checksum;
|
|
}
|
|
|
|
bool Varicode::checksum32Valid(QString const &checksum, QString const &input){
|
|
auto fromBytes = input.toLocal8Bit();
|
|
auto crc = CRC::Calculate(fromBytes.data(), fromBytes.length(), CRC::CRC_32_BZIP2());
|
|
return Varicode::pack32bits(crc) == checksum;
|
|
}
|
|
|
|
QStringList Varicode::parseCallsigns(QString const &input){
|
|
QStringList callsigns;
|
|
QRegularExpression re(compound_callsign_pattern);
|
|
QRegularExpressionMatchIterator iter = re.globalMatch(input);
|
|
while(iter.hasNext()){
|
|
QRegularExpressionMatch match = iter.next();
|
|
if(!match.hasMatch()){
|
|
continue;
|
|
}
|
|
QString callsign = match.captured("callsign").trimmed();
|
|
if(!Varicode::isValidCallsign(callsign, nullptr)){
|
|
continue;
|
|
}
|
|
QRegularExpression m(grid_pattern);
|
|
if(m.match(callsign).hasMatch()){
|
|
continue;
|
|
}
|
|
callsigns.append(callsign);
|
|
}
|
|
return callsigns;
|
|
}
|
|
|
|
QStringList Varicode::parseGrids(const QString &input){
|
|
QStringList grids;
|
|
QRegularExpression re(grid_pattern);
|
|
QRegularExpressionMatchIterator iter = re.globalMatch(input);
|
|
while(iter.hasNext()){
|
|
QRegularExpressionMatch match = iter.next();
|
|
if(!match.hasMatch()){
|
|
continue;
|
|
}
|
|
auto grid = match.captured("grid");
|
|
if(grid == "RR73"){
|
|
continue;
|
|
}
|
|
grids.append(grid);
|
|
}
|
|
return grids;
|
|
}
|
|
|
|
QList<QPair<int, QVector<bool>>> Varicode::huffEncode(const QMap<QString, QString> &huff, QString const& text){
|
|
QList<QPair<int, QVector<bool>>> out;
|
|
|
|
int i = 0;
|
|
|
|
auto keys = huff.keys();
|
|
qSort(keys.begin(), keys.end(), [](QString const &a, QString const &b){
|
|
auto alen = a.length();
|
|
auto blen = b.length();
|
|
if(blen < alen){
|
|
return true;
|
|
}
|
|
if(alen < blen){
|
|
return false;
|
|
}
|
|
|
|
return b < a;
|
|
});
|
|
|
|
while(i < text.length()){
|
|
bool found = false;
|
|
foreach(auto ch, keys){
|
|
if(text.midRef(i).startsWith(ch)){
|
|
out.append({ ch.length(), Varicode::strToBits(huff[ch])});
|
|
i += ch.length();
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(!found){
|
|
i++;
|
|
}
|
|
}
|
|
|
|
return out;
|
|
}
|
|
|
|
QString Varicode::huffDecode(QMap<QString, QString> const &huff, QVector<bool> const& bitvec){
|
|
QString text;
|
|
|
|
QString bits = Varicode::bitsToStr(bitvec);
|
|
|
|
// TODO: jsherer - this is naive...
|
|
while(bits.length() > 0){
|
|
bool found = false;
|
|
foreach(auto key, huff.keys()){
|
|
if(bits.startsWith(huff[key])){
|
|
if(key == EOT){
|
|
text.append(" ");
|
|
found = false;
|
|
break;
|
|
}
|
|
text.append(key);
|
|
bits = bits.mid(huff[key].length());
|
|
found = true;
|
|
}
|
|
}
|
|
if(!found){
|
|
break;
|
|
}
|
|
}
|
|
|
|
return text;
|
|
}
|
|
|
|
QSet<QString> Varicode::huffValidChars(const QMap<QString, QString> &huff){
|
|
return QSet<QString>::fromList(huff.keys());
|
|
}
|
|
|
|
// convert char* array of 0 bytes and 1 bytes to bool vector
|
|
QVector<bool> Varicode::bytesToBits(char *bitvec, int n){
|
|
QVector<bool> bits;
|
|
for(int i = 0; i < n; i++){
|
|
bits.append(bitvec[i] == 0x01);
|
|
}
|
|
return bits;
|
|
}
|
|
|
|
// convert string of 0s and 1s to bool vector
|
|
QVector<bool> Varicode::strToBits(QString const& bitvec){
|
|
QVector<bool> bits;
|
|
foreach(auto ch, bitvec){
|
|
bits.append(ch == '1');
|
|
}
|
|
return bits;
|
|
}
|
|
|
|
QString Varicode::bitsToStr(QVector<bool> const& bitvec){
|
|
QString bits;
|
|
foreach(auto bit, bitvec){
|
|
bits.append(bit ? "1" : "0");
|
|
}
|
|
return bits;
|
|
}
|
|
|
|
QVector<bool> Varicode::intToBits(quint64 value, int expected){
|
|
QVector<bool> bits;
|
|
|
|
while(value){
|
|
bits.prepend((bool)(value & 1));
|
|
value = value >> 1;
|
|
}
|
|
|
|
if(expected){
|
|
while(bits.count() < expected){
|
|
bits.prepend((bool) 0);
|
|
}
|
|
}
|
|
|
|
return bits;
|
|
}
|
|
|
|
quint64 Varicode::bitsToInt(QVector<bool> const value){
|
|
quint64 v = 0;
|
|
foreach(bool bit, value){
|
|
v = (v << 1) + (int)(bit);
|
|
}
|
|
return v;
|
|
}
|
|
|
|
quint64 Varicode::bitsToInt(QVector<bool>::ConstIterator start, int n){
|
|
quint64 v = 0;
|
|
for(int i = 0; i < n; i++){
|
|
int bit = (int)(*start);
|
|
v = (v << 1) + (int)(bit);
|
|
start++;
|
|
}
|
|
return v;
|
|
}
|
|
|
|
QVector<bool> Varicode::bitsListToBits(QList<QVector<bool>> &list){
|
|
QVector<bool> out;
|
|
foreach(auto vec, list){
|
|
out += vec;
|
|
}
|
|
return out;
|
|
}
|
|
|
|
quint8 Varicode::unpack5bits(QString const& value){
|
|
return alphabet.indexOf(value.at(0));
|
|
}
|
|
|
|
// pack a 5-bit value from 0 to 31 into a single character
|
|
QString Varicode::pack5bits(quint8 packed){
|
|
return alphabet.at(packed % 32);
|
|
}
|
|
|
|
quint8 Varicode::unpack6bits(QString const& value){
|
|
return alphabet.indexOf(value.at(0));
|
|
}
|
|
|
|
// pack a 6-bit value from 0 to 40 into a single character
|
|
QString Varicode::pack6bits(quint8 packed){
|
|
return alphabet.at(packed % 41);
|
|
}
|
|
|
|
quint16 Varicode::unpack16bits(QString const& value){
|
|
int a = alphabet.indexOf(value.at(0));
|
|
int b = alphabet.indexOf(value.at(1));
|
|
int c = alphabet.indexOf(value.at(2));
|
|
|
|
int unpacked = (nalphabet * nalphabet) * a + nalphabet * b + c;
|
|
if(unpacked > (1<<16)-1){
|
|
// BASE-41 can produce a value larger than 16 bits... ala "???" == 70643
|
|
return 0;
|
|
}
|
|
|
|
return unpacked & ((1<<16)-1);
|
|
}
|
|
|
|
// pack a 16-bit value into a three character sequence
|
|
QString Varicode::pack16bits(quint16 packed){
|
|
QString out;
|
|
quint16 tmp = packed / (nalphabet * nalphabet);
|
|
|
|
out.append(alphabet.at(tmp));
|
|
|
|
tmp = (packed - (tmp * (nalphabet * nalphabet))) / nalphabet;
|
|
out.append(alphabet.at(tmp));
|
|
|
|
tmp = packed % nalphabet;
|
|
out.append(alphabet.at(tmp));
|
|
|
|
return out;
|
|
}
|
|
|
|
quint32 Varicode::unpack32bits(QString const& value){
|
|
return (quint32)(unpack16bits(value.left(3))) << 16 | unpack16bits(value.right(3));
|
|
}
|
|
|
|
QString Varicode::pack32bits(quint32 packed){
|
|
quint16 a = (packed & 0xFFFF0000) >> 16;
|
|
quint16 b = packed & 0xFFFF;
|
|
return pack16bits(a) + pack16bits(b);
|
|
}
|
|
|
|
quint64 Varicode::unpack64bits(QString const& value){
|
|
return (quint64)(unpack32bits(value.left(6))) << 32 | unpack32bits(value.right(6));
|
|
}
|
|
|
|
QString Varicode::pack64bits(quint64 packed){
|
|
quint32 a = (packed & 0xFFFFFFFF00000000) >> 32;
|
|
quint32 b = packed & 0xFFFFFFFF;
|
|
return pack32bits(a) + pack32bits(b);
|
|
}
|
|
|
|
// returns the first 64 bits and sets the last 8 bits in pRem
|
|
quint64 Varicode::unpack72bits(QString const& text, quint8 *pRem){
|
|
quint64 value = 0;
|
|
quint8 rem = 0;
|
|
quint8 mask2 = ((1<<2)-1);
|
|
|
|
for(int i = 0; i < 10; i++){
|
|
value |= (quint64)(alphabet72.indexOf(text.at(i))) << (58-6*i);
|
|
}
|
|
|
|
quint8 remHigh = alphabet72.indexOf(text.at(10));
|
|
value |= remHigh >> 2;
|
|
|
|
quint8 remLow = alphabet72.indexOf(text.at(11));
|
|
rem = ((remHigh & mask2) << 6) | remLow;
|
|
|
|
if(pRem) *pRem = rem;
|
|
return value;
|
|
}
|
|
|
|
QString Varicode::pack72bits(quint64 value, quint8 rem){
|
|
QChar packed[12]; // 12 x 6bit characters
|
|
|
|
quint8 mask4 = ((1<<4)-1);
|
|
quint8 mask6 = ((1<<6)-1);
|
|
|
|
quint8 remHigh = ((value & mask4) << 2) | (rem >> 6);
|
|
quint8 remLow = rem & mask6;
|
|
value = value >> 4;
|
|
|
|
packed[11] = alphabet72.at(remLow);
|
|
packed[10] = alphabet72.at(remHigh);
|
|
|
|
for(int i = 0; i < 10; i++){
|
|
packed[9-i] = alphabet72.at(value & mask6);
|
|
value = value >> 6;
|
|
}
|
|
|
|
return QString(packed, 12);
|
|
}
|
|
|
|
|
|
|
|
|
|
// //
|
|
// --- //
|
|
// //
|
|
|
|
|
|
// pack a 4-digit alpha-numeric + space into a 22 bit value
|
|
// 21 bits for the data + 1 bit for a flag indicator
|
|
// giving us a total of 5.5 bits per character
|
|
quint32 Varicode::packAlphaNumeric22(QString const& value, bool isFlag){
|
|
QString word = QString(value).replace(QRegExp("[^A-Z0-9/ ]"), "");
|
|
if(word.length() < 4){
|
|
word = word + QString(" ").repeated(4-word.length());
|
|
}
|
|
|
|
quint32 a = 38 * 38 * 38 * alphanumeric.indexOf(word.at(0));
|
|
quint32 b = 38 * 38 * alphanumeric.indexOf(word.at(1));
|
|
quint32 c = 38 * alphanumeric.indexOf(word.at(2));
|
|
quint32 d = alphanumeric.indexOf(word.at(3));
|
|
|
|
quint32 packed = a + b + c + d;
|
|
packed = (packed << 1) + (int)isFlag;
|
|
|
|
return packed;
|
|
}
|
|
|
|
QString Varicode::unpackAlphaNumeric22(quint32 packed, bool *isFlag){
|
|
QChar word[4];
|
|
|
|
if(isFlag) *isFlag = packed & 1;
|
|
packed = packed >> 1;
|
|
|
|
quint32 tmp = packed % 38;
|
|
word[3] = alphanumeric.at(tmp);
|
|
packed = packed / 38;
|
|
|
|
tmp = packed % 38;
|
|
word[2] = alphanumeric.at(tmp);
|
|
packed = packed / 38;
|
|
|
|
tmp = packed % 38;
|
|
word[1] = alphanumeric.at(tmp);
|
|
packed = packed / 38;
|
|
|
|
tmp = packed % 38;
|
|
word[0] = alphanumeric.at(tmp);
|
|
packed = packed / 38;
|
|
|
|
return QString(word, 4);
|
|
}
|
|
|
|
// pack a 10-digit alpha-numeric + space + forward-slash into a 50 bit value
|
|
// optionally start with an @
|
|
//
|
|
// [39][38][38][02][38][38][38][02][38][38][38]
|
|
// [K] [N] [4] [ ] [C] [R] [D] [/] [Q] [R] [P]
|
|
// [V] [E] [3] [/] [L] [B] [9] [ ] [Y] [H] [X]
|
|
// [@] [R] [A] [ ] [C] [E] [S] [ ] [ ] [ ] [ ]
|
|
//
|
|
// giving us a total of 4.5-5.55 bits per character
|
|
quint64 Varicode::packAlphaNumeric50(QString const& value){
|
|
QString word = QString(value).replace(QRegExp("[^A-Z0-9 /@]"), "");
|
|
if(word.length() > 3 && word.at(3) != '/'){
|
|
word.insert(3, ' ');
|
|
}
|
|
if(word.length() > 7 && word.at(7) != '/'){
|
|
word.insert(7, ' ');
|
|
}
|
|
|
|
if(word.length() < 11){
|
|
word = word + QString(" ").repeated(11-word.length());
|
|
}
|
|
|
|
quint64 a = (quint64)38 * 38 * 38 * 2 * 38 * 38 * 38 * 2 * 38 * 38 * alphanumeric.indexOf(word.at(0));
|
|
quint64 b = (quint64)38 * 38 * 38 * 2 * 38 * 38 * 38 * 2 * 38 * alphanumeric.indexOf(word.at(1));
|
|
quint64 c = (quint64)38 * 38 * 38 * 2 * 38 * 38 * 38 * 2 * alphanumeric.indexOf(word.at(2));
|
|
quint64 d = (quint64)38 * 38 * 38 * 2 * 38 * 38 * 38 * (int)(word.at(3) == '/');
|
|
quint64 e = (quint64)38 * 38 * 38 * 2 * 38 * 38 * alphanumeric.indexOf(word.at(4));
|
|
quint64 f = (quint64)38 * 38 * 38 * 2 * 38 * alphanumeric.indexOf(word.at(5));
|
|
quint64 g = (quint64)38 * 38 * 38 * 2 * alphanumeric.indexOf(word.at(6));
|
|
quint64 h = (quint64)38 * 38 * 38 * (int)(word.at(7) == '/');
|
|
quint64 i = (quint64)38 * 38 * alphanumeric.indexOf(word.at(8));
|
|
quint64 j = (quint64)38 * alphanumeric.indexOf(word.at(9));
|
|
quint64 k = (quint64)alphanumeric.indexOf(word.at(10));
|
|
|
|
quint64 packed = a + b + c + d + e + f + g + h + i + j + k;
|
|
|
|
return packed;
|
|
}
|
|
|
|
QString Varicode::unpackAlphaNumeric50(quint64 packed){
|
|
QChar word[11];
|
|
|
|
quint64 tmp = packed % 38;
|
|
word[10] = alphanumeric.at(tmp);
|
|
packed = packed / 38;
|
|
|
|
tmp = packed % 38;
|
|
word[9] = alphanumeric.at(tmp);
|
|
packed = packed / 38;
|
|
|
|
tmp = packed % 38;
|
|
word[8] = alphanumeric.at(tmp);
|
|
packed = packed / 38;
|
|
|
|
tmp = packed % 2;
|
|
word[7] = tmp ? '/' : ' ';
|
|
packed = packed / 2;
|
|
|
|
tmp = packed % 38;
|
|
word[6] = alphanumeric.at(tmp);
|
|
packed = packed / 38;
|
|
|
|
tmp = packed % 38;
|
|
word[5] = alphanumeric.at(tmp);
|
|
packed = packed / 38;
|
|
|
|
tmp = packed % 38;
|
|
word[4] = alphanumeric.at(tmp);
|
|
packed = packed / 38;
|
|
|
|
tmp = packed % 2;
|
|
word[3] = tmp ? '/' : ' ';
|
|
packed = packed / 2;
|
|
|
|
tmp = packed % 38;
|
|
word[2] = alphanumeric.at(tmp);
|
|
packed = packed / 38;
|
|
|
|
tmp = packed % 38;
|
|
word[1] = alphanumeric.at(tmp);
|
|
packed = packed / 38;
|
|
|
|
tmp = packed % 39;
|
|
word[0] = alphanumeric.at(tmp);
|
|
packed = packed / 39;
|
|
|
|
auto value = QString(word, 11);
|
|
|
|
return value.replace(" ", "");
|
|
}
|
|
|
|
// pack a callsign into a 28-bit value and a boolean portable flag
|
|
quint32 Varicode::packCallsign(QString const& value, bool *pPortable){
|
|
quint32 packed = 0;
|
|
|
|
QString callsign = value.toUpper().trimmed();
|
|
|
|
if(basecalls.contains(callsign)){
|
|
return basecalls[callsign];
|
|
}
|
|
|
|
// strip /P
|
|
if(callsign.endsWith("/P")){
|
|
callsign = callsign.left(callsign.length()-2);
|
|
|
|
if(pPortable) *pPortable = true;
|
|
}
|
|
|
|
// workaround for swaziland
|
|
if(callsign.startsWith("3DA0")){
|
|
callsign = "3D0" + callsign.mid(4);
|
|
}
|
|
|
|
// workaround for guinea
|
|
if(callsign.startsWith("3X") && 'A' <= callsign.at(2) && callsign.at(2) <= 'Z'){
|
|
callsign = "Q" + callsign.mid(2);
|
|
}
|
|
|
|
int slen = callsign.length();
|
|
if(slen < 2){
|
|
return packed;
|
|
}
|
|
|
|
if(slen > 6){
|
|
return packed;
|
|
}
|
|
|
|
QStringList permutations = { callsign };
|
|
if(slen == 2){
|
|
permutations.append(" " + callsign + " ");
|
|
}
|
|
if(slen == 3){
|
|
permutations.append(" " + callsign + " ");
|
|
permutations.append(callsign + " ");
|
|
}
|
|
if(slen == 4){
|
|
permutations.append(" " + callsign + " ");
|
|
permutations.append(callsign + " ");
|
|
}
|
|
if(slen == 5){
|
|
permutations.append(" " + callsign);
|
|
permutations.append(callsign + " ");
|
|
}
|
|
|
|
QString matched;
|
|
QRegularExpression m(pack_callsign_pattern);
|
|
foreach(auto permutation, permutations){
|
|
auto match = m.match(permutation);
|
|
if(match.hasMatch()){
|
|
matched = match.captured(0);
|
|
}
|
|
}
|
|
if(matched.isEmpty()){
|
|
return packed;
|
|
}
|
|
if(matched.length() < 6){
|
|
return packed;
|
|
}
|
|
|
|
packed = alphanumeric.indexOf(matched.at(0));
|
|
packed = 36*packed + alphanumeric.indexOf(matched.at(1));
|
|
packed = 10*packed + alphanumeric.indexOf(matched.at(2));
|
|
packed = 27*packed + alphanumeric.indexOf(matched.at(3)) - 10;
|
|
packed = 27*packed + alphanumeric.indexOf(matched.at(4)) - 10;
|
|
packed = 27*packed + alphanumeric.indexOf(matched.at(5)) - 10;
|
|
|
|
return packed;
|
|
}
|
|
|
|
QString Varicode::unpackCallsign(quint32 value, bool portable){
|
|
foreach(auto key, basecalls.keys()){
|
|
if(basecalls[key] == value){
|
|
return key;
|
|
}
|
|
}
|
|
|
|
QChar word[6];
|
|
quint32 tmp = value % 27 + 10;
|
|
word[5] = alphanumeric.at(tmp);
|
|
value = value/27;
|
|
|
|
tmp = value % 27 + 10;
|
|
word[4] = alphanumeric.at(tmp);
|
|
value = value/27;
|
|
|
|
tmp = value % 27 + 10;
|
|
word[3] = alphanumeric.at(tmp);
|
|
value = value/27;
|
|
|
|
tmp = value % 10;
|
|
word[2] = alphanumeric.at(tmp);
|
|
value = value/10;
|
|
|
|
tmp = value % 36;
|
|
word[1] = alphanumeric.at(tmp);
|
|
value = value/36;
|
|
|
|
tmp = value;
|
|
word[0] = alphanumeric.at(tmp);
|
|
|
|
QString callsign(word, 6);
|
|
if(callsign.startsWith("3D0")){
|
|
callsign = "3DA0" + callsign.mid(3);
|
|
}
|
|
|
|
if(callsign.startsWith("Q") and 'A' <= callsign.at(1) && callsign.at(1) <= 'Z'){
|
|
callsign = "3X" + callsign.mid(1);
|
|
}
|
|
|
|
if(portable){
|
|
callsign = callsign.trimmed() + "/P";
|
|
}
|
|
|
|
return callsign.trimmed();
|
|
}
|
|
|
|
QString Varicode::deg2grid(float dlong, float dlat){
|
|
QChar grid[6];
|
|
|
|
if(dlong < -180){
|
|
dlong += 360;
|
|
}
|
|
if(dlong > 180){
|
|
dlong -= 360;
|
|
}
|
|
|
|
int nlong = int(60.0*(180.0-dlong)/5);
|
|
|
|
int n1 = nlong/240;
|
|
int n2 = (nlong-240*n1)/24;
|
|
int n3 = (nlong-240*n1-24*n2);
|
|
|
|
grid[0] = QChar('A' + n1);
|
|
grid[2] = QChar('0' + n2);
|
|
grid[4] = QChar('a' + n3);
|
|
|
|
int nlat=int(60.0*(dlat+90)/2.5);
|
|
|
|
n1 = nlat/240;
|
|
n2 = (nlat-240*n1)/24;
|
|
n3 = (nlat-240*n1-24*n2);
|
|
|
|
grid[1] = QChar('A' + n1);
|
|
grid[3] = QChar('0' + n2);
|
|
grid[5] = QChar('a' + n3);
|
|
|
|
return QString(grid, 6);
|
|
}
|
|
|
|
QPair<float, float> Varicode::grid2deg(QString const &grid){
|
|
QPair<float, float> longLat;
|
|
|
|
QString g = grid;
|
|
if(g.length() < 6){
|
|
g = grid.left(4) + "mm";
|
|
}
|
|
|
|
g = g.left(4).toUpper() + g.right(2).toLower();
|
|
|
|
int nlong = 180 - 20 * (g.at(0).toLatin1() - 'A');
|
|
int n20d = 2 * (g.at(2).toLatin1() - '0');
|
|
float xminlong = 5 * (g.at(4).toLatin1() - 'a' + 0.5);
|
|
float dlong = nlong - n20d - xminlong/60.0;
|
|
|
|
int nlat = -90 + 10*(g.at(1).toLatin1() - 'A') + g.at(3).toLatin1() - '0';
|
|
float xminlat = 2.5 * (g.at(5).toLatin1() - 'a' + 0.5);
|
|
float dlat = nlat + xminlat/60.0;
|
|
|
|
longLat.first = dlong;
|
|
longLat.second = dlat;
|
|
|
|
return longLat;
|
|
}
|
|
|
|
// pack a 4-digit maidenhead grid locator into a 15-bit value
|
|
quint16 Varicode::packGrid(QString const& value){
|
|
QString grid = QString(value).trimmed();
|
|
if(grid.length() < 4){
|
|
return (1<<15)-1;
|
|
}
|
|
|
|
auto pair = Varicode::grid2deg(grid.left(4));
|
|
int ilong = pair.first;
|
|
int ilat = pair.second + 90;
|
|
|
|
return ((ilong + 180)/2) * 180 + ilat;
|
|
}
|
|
|
|
QString Varicode::unpackGrid(quint16 value){
|
|
if(value > nbasegrid){
|
|
return "";
|
|
}
|
|
|
|
float dlat = value % 180 - 90;
|
|
float dlong = value / 180 * 2 - 180 + 2;
|
|
|
|
return Varicode::deg2grid(dlong, dlat).left(4);
|
|
}
|
|
|
|
// pack a number or snr into an integer between 0 & 62
|
|
quint8 Varicode::packNum(QString const &num, bool *ok){
|
|
int inum = 0;
|
|
if(num.isEmpty()){
|
|
if(ok) *ok = false;
|
|
return inum;
|
|
}
|
|
|
|
inum = qMax(-30, qMin(num.toInt(ok, 10), 31));
|
|
return inum + 30 + 1;
|
|
}
|
|
|
|
// pack a reduced fidelity command and a number into the extra bits provided between nbasegrid and nmaxgrid
|
|
quint8 Varicode::packCmd(quint8 cmd, quint8 num, bool *pPackedNum){
|
|
//quint8 allowed = nmaxgrid - nbasegrid - 1;
|
|
|
|
// if cmd == snr
|
|
quint8 value = 0;
|
|
auto cmdStr = directed_cmds.key(cmd);
|
|
if(Varicode::isSNRCommand(cmdStr)){
|
|
// 8 bits - 1 bit flag + 1 bit type + 6 bit number
|
|
// [1][X][6]
|
|
// X = 0 == SNR
|
|
// X = 1 == ACK
|
|
value = ((1 << 1) | (int)(cmdStr == " ACK")) << 6;
|
|
value = value + (num & ((1<<6)-1));
|
|
if(pPackedNum) *pPackedNum = true;
|
|
} else {
|
|
value = cmd & ((1<<7)-1);
|
|
if(pPackedNum) *pPackedNum = false;
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
quint8 Varicode::unpackCmd(quint8 value, quint8 *pNum){
|
|
// if the first bit is 1, this is an SNR with a number encoded in the lower 6 bits
|
|
if(value & (1<<7)){
|
|
if(pNum) *pNum = value & ((1<<6)-1);
|
|
|
|
auto cmd = directed_cmds[" SNR"];
|
|
if(value & (1<<6)){
|
|
cmd = directed_cmds[" ACK"];
|
|
}
|
|
return cmd;
|
|
} else {
|
|
if(pNum) *pNum = 0;
|
|
return value & ((1<<7)-1);
|
|
}
|
|
}
|
|
|
|
bool Varicode::isSNRCommand(const QString &cmd){
|
|
return directed_cmds.contains(cmd) && snr_cmds.contains(directed_cmds[cmd]);
|
|
}
|
|
|
|
bool Varicode::isCommandAllowed(const QString &cmd){
|
|
return directed_cmds.contains(cmd) && allowed_cmds.contains(directed_cmds[cmd]);
|
|
}
|
|
|
|
bool Varicode::isCommandBuffered(const QString &cmd){
|
|
return directed_cmds.contains(cmd) && (cmd.contains(" ") || buffered_cmds.contains(directed_cmds[cmd]));
|
|
}
|
|
|
|
int Varicode::isCommandChecksumed(const QString &cmd){
|
|
if(!directed_cmds.contains(cmd) || !checksum_cmds.contains(directed_cmds[cmd])){
|
|
return 0;
|
|
}
|
|
|
|
return checksum_cmds[directed_cmds[cmd]];
|
|
}
|
|
|
|
bool Varicode::isCommandAutoreply(const QString &cmd){
|
|
return directed_cmds.contains(cmd) && (autoreply_cmds.contains(directed_cmds[cmd]));
|
|
}
|
|
|
|
bool isValidCompoundCallsign(QStringRef callsign){
|
|
// compound calls cannot be > 9 characters after removing the /
|
|
if(callsign.toString().replace("/", "").length() > 9){
|
|
return false;
|
|
}
|
|
|
|
// compound is valid when it is:
|
|
// 1) a group call (starting with @)
|
|
// 2) an actual compound call (containing /) that is not a base call
|
|
// 3) is greater than two characters and has an alphanumeric character sequence
|
|
//
|
|
// this is so arbitrary words < 10 characters in length don't end up coded as callsigns
|
|
if(callsign.contains("/")){
|
|
auto base = callsign.toString().left(callsign.indexOf("/"));
|
|
return !basecalls.contains(base);
|
|
}
|
|
|
|
if(callsign.startsWith("@")){
|
|
return true;
|
|
}
|
|
|
|
if(callsign.length() > 2 && QRegularExpression("[0-9][A-Z]|[A-Z][0-9]").match(callsign).hasMatch()){
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool Varicode::isValidCallsign(const QString &callsign, bool *pIsCompound){
|
|
if(basecalls.contains(callsign)){
|
|
if(pIsCompound) *pIsCompound = false;
|
|
return true;
|
|
}
|
|
|
|
auto match = QRegularExpression(base_callsign_pattern).match(callsign);
|
|
if(match.hasMatch() && (match.capturedLength() == callsign.length())){
|
|
if(pIsCompound) *pIsCompound = false;
|
|
return callsign.length() > 2 && QRegularExpression("[0-9][A-Z]|[A-Z][0-9]").match(callsign).hasMatch();
|
|
}
|
|
|
|
match = QRegularExpression("^" + compound_callsign_pattern).match(callsign);
|
|
|
|
if(match.hasMatch() && (match.capturedLength() == callsign.length())){
|
|
bool isValid = isValidCompoundCallsign(match.capturedRef(0));
|
|
|
|
if(pIsCompound) *pIsCompound = isValid;
|
|
return isValid;
|
|
}
|
|
|
|
if(pIsCompound) *pIsCompound = false;
|
|
return false;
|
|
}
|
|
|
|
bool Varicode::isCompoundCallsign(const QString &callsign){
|
|
if(basecalls.contains(callsign) && !callsign.startsWith("@")){
|
|
return false;
|
|
}
|
|
|
|
auto match = QRegularExpression(base_callsign_pattern).match(callsign);
|
|
if(match.hasMatch() && (match.capturedLength() == callsign.length())){
|
|
return false;
|
|
}
|
|
|
|
match = QRegularExpression("^" + compound_callsign_pattern).match(callsign);
|
|
if(!match.hasMatch() || (match.capturedLength() != callsign.length())){
|
|
return false;
|
|
}
|
|
|
|
bool isValid = isValidCompoundCallsign(match.capturedRef(0));
|
|
|
|
qDebug() << "is valid compound?" << match.capturedRef(0) << isValid;
|
|
|
|
return isValid;
|
|
}
|
|
|
|
bool Varicode::isGroupAllowed(const QString &group){
|
|
const QSet<QString> disallowed = {
|
|
"@APRSIS"
|
|
};
|
|
return !disallowed.contains(group);
|
|
}
|
|
|
|
// CQCQCQ EM73
|
|
// CQ DX EM73
|
|
// CQ QRP EM73
|
|
// HB EM73
|
|
QString Varicode::packHeartbeatMessage(QString const &text, const QString &callsign, int *n){
|
|
QString frame;
|
|
|
|
auto parsedText = heartbeat_re.match(text);
|
|
if(!parsedText.hasMatch()){
|
|
if(n) *n = 0;
|
|
return frame;
|
|
}
|
|
|
|
auto extra = parsedText.captured("grid");
|
|
|
|
// Heartbeat Alt Type
|
|
// ---------------
|
|
// 1 0 HB
|
|
// 1 1 CQ
|
|
|
|
auto type = parsedText.captured("type");
|
|
auto isAlt = type.startsWith("CQ");
|
|
|
|
if(callsign.isEmpty()){
|
|
if(n) *n = 0;
|
|
return frame;
|
|
}
|
|
|
|
quint16 packed_extra = nmaxgrid; // which will display an empty string
|
|
if(extra.length() == 4 && QRegularExpression(grid_pattern).match(extra).hasMatch()){
|
|
packed_extra = Varicode::packGrid(extra);
|
|
}
|
|
|
|
quint8 cqNumber = hbs.key(type, 0);
|
|
|
|
if(isAlt){
|
|
packed_extra |= (1<<15);
|
|
cqNumber = cqs.key(type, 0);
|
|
}
|
|
|
|
frame = packCompoundFrame(callsign, Varicode::FrameHeartbeat, packed_extra, cqNumber);
|
|
if(frame.isEmpty()){
|
|
if(n) *n = 0;
|
|
return frame;
|
|
}
|
|
|
|
if(n) *n = parsedText.captured(0).length();
|
|
return frame;
|
|
}
|
|
|
|
QStringList Varicode::unpackHeartbeatMessage(const QString &text, quint8 *pType, bool * isAlt, quint8 * pBits3){
|
|
quint8 type = Varicode::FrameHeartbeat;
|
|
quint16 num = nmaxgrid;
|
|
quint8 bits3 = 0;
|
|
|
|
QStringList unpacked = unpackCompoundFrame(text, &type, &num, &bits3);
|
|
if(unpacked.isEmpty() || type != Varicode::FrameHeartbeat){
|
|
return QStringList{};
|
|
}
|
|
|
|
unpacked.append(Varicode::unpackGrid(num & ((1<<15)-1)));
|
|
|
|
if(isAlt) *isAlt = (num & (1<<15));
|
|
if(pType) *pType = type;
|
|
if(pBits3) *pBits3 = bits3;
|
|
|
|
return unpacked;
|
|
}
|
|
|
|
// KN4CRD/XXXX EM73
|
|
// XXXX/KN4CRD EM73
|
|
// KN4CRD/P
|
|
QString Varicode::packCompoundMessage(QString const &text, int *n){
|
|
QString frame;
|
|
|
|
qDebug() << "trying to pack compound message" << text;
|
|
auto parsedText = compound_re.match(text);
|
|
if(!parsedText.hasMatch()){
|
|
qDebug() << "no match for compound message" << text;
|
|
if(n) *n = 0;
|
|
return frame;
|
|
}
|
|
|
|
qDebug() << parsedText.capturedTexts();
|
|
|
|
QString callsign = parsedText.captured("callsign");
|
|
QString grid = parsedText.captured("grid");
|
|
QString cmd = parsedText.captured("cmd");
|
|
QString num = parsedText.captured("num").trimmed();
|
|
|
|
if(callsign.isEmpty()){
|
|
if(n) *n = 0;
|
|
return frame;
|
|
}
|
|
|
|
quint8 type = Varicode::FrameCompound;
|
|
quint16 extra = nmaxgrid;
|
|
|
|
qDebug() << "try pack cmd" << cmd << directed_cmds.contains(cmd) << Varicode::isCommandAllowed(cmd);
|
|
|
|
if (!cmd.isEmpty() && directed_cmds.contains(cmd) && Varicode::isCommandAllowed(cmd)){
|
|
bool packedNum = false;
|
|
qint8 inum = Varicode::packNum(num, nullptr);
|
|
extra = nusergrid + Varicode::packCmd(directed_cmds[cmd], inum, &packedNum);
|
|
|
|
type = Varicode::FrameCompoundDirected;
|
|
} else if(!grid.isEmpty()){
|
|
extra = Varicode::packGrid(grid);
|
|
}
|
|
|
|
frame = Varicode::packCompoundFrame(callsign, type, extra, 0);
|
|
|
|
if(n) *n = parsedText.captured(0).length();
|
|
return frame;
|
|
}
|
|
|
|
QStringList Varicode::unpackCompoundMessage(const QString &text, quint8 *pType, quint8 *pBits3){
|
|
quint8 type = Varicode::FrameCompound;
|
|
quint16 extra = nmaxgrid;
|
|
quint8 bits3 = 0;
|
|
|
|
QStringList unpacked = unpackCompoundFrame(text, &type, &extra, &bits3);
|
|
if(unpacked.isEmpty() || (type != Varicode::FrameCompound && type != Varicode::FrameCompoundDirected)){
|
|
return QStringList {};
|
|
}
|
|
|
|
if(extra <= nbasegrid){
|
|
unpacked.append(" " + Varicode::unpackGrid(extra));
|
|
} else if (nusergrid <= extra && extra < nmaxgrid) {
|
|
quint8 num = 0;
|
|
auto cmd = Varicode::unpackCmd(extra - nusergrid, &num);
|
|
auto cmdStr = directed_cmds.key(cmd);
|
|
|
|
unpacked.append(cmdStr);
|
|
|
|
if(Varicode::isSNRCommand(cmdStr)){
|
|
unpacked.append(Varicode::formatSNR(num - 31));
|
|
}
|
|
}
|
|
|
|
if(pType) *pType = type;
|
|
if(pBits3) *pBits3 = bits3;
|
|
|
|
return unpacked;
|
|
}
|
|
|
|
QString Varicode::packCompoundFrame(const QString &callsign, quint8 type, quint16 num, quint8 bits3){
|
|
QString frame;
|
|
|
|
// needs to be a compound type...
|
|
if(type == Varicode::FrameData || type == Varicode::FrameDirected){
|
|
return frame;
|
|
}
|
|
|
|
quint8 packed_flag = type;
|
|
quint64 packed_callsign = Varicode::packAlphaNumeric50(callsign);
|
|
if(packed_callsign == 0){
|
|
return frame;
|
|
}
|
|
|
|
quint16 mask11 = ((1<<11)-1)<<5;
|
|
quint8 mask5 = (1<<5)-1;
|
|
|
|
quint16 packed_11 = (num & mask11) >> 5;
|
|
quint8 packed_5 = num & mask5;
|
|
quint8 packed_8 = (packed_5 << 3) | bits3;
|
|
|
|
// [3][50][11],[5][3] = 72
|
|
auto bits = (
|
|
Varicode::intToBits(packed_flag, 3) +
|
|
Varicode::intToBits(packed_callsign, 50) +
|
|
Varicode::intToBits(packed_11, 11)
|
|
);
|
|
|
|
return Varicode::pack72bits(Varicode::bitsToInt(bits), packed_8);
|
|
}
|
|
|
|
QStringList Varicode::unpackCompoundFrame(const QString &text, quint8 *pType, quint16 *pNum, quint8 *pBits3){
|
|
QStringList unpacked;
|
|
|
|
if(text.length() < 12 || text.contains(" ")){
|
|
return unpacked;
|
|
}
|
|
|
|
// [3][50][11],[5][3] = 72
|
|
quint8 packed_8 = 0;
|
|
auto bits = Varicode::intToBits(Varicode::unpack72bits(text, &packed_8), 64);
|
|
|
|
quint8 packed_5 = packed_8 >> 3;
|
|
quint8 packed_3 = packed_8 & ((1<<3)-1);
|
|
|
|
quint8 packed_flag = Varicode::bitsToInt(bits.mid(0, 3));
|
|
|
|
// needs to be a ping type...
|
|
if(packed_flag == Varicode::FrameData || packed_flag == Varicode::FrameDirected){
|
|
return unpacked;
|
|
}
|
|
|
|
quint64 packed_callsign = Varicode::bitsToInt(bits.mid(3, 50));
|
|
quint16 packed_11 = Varicode::bitsToInt(bits.mid(53, 11));
|
|
|
|
QString callsign = Varicode::unpackAlphaNumeric50(packed_callsign);
|
|
|
|
quint16 num = (packed_11 << 5) | packed_5;
|
|
|
|
if(pType) *pType = packed_flag;
|
|
if(pNum) *pNum = num;
|
|
if(pBits3) *pBits3 = packed_3;
|
|
|
|
unpacked.append(callsign);
|
|
unpacked.append("");
|
|
|
|
return unpacked;
|
|
}
|
|
|
|
// J1Y ACK
|
|
// J1Y?
|
|
// KN4CRD: J1Y$
|
|
// KN4CRD: J1Y! HELLO WORLD
|
|
QString Varicode::packDirectedMessage(const QString &text, const QString &mycall, QString *pTo, bool *pToCompound, QString * pCmd, QString *pNum, int *n){
|
|
QString frame;
|
|
|
|
auto match = directed_re.match(text);
|
|
if(!match.hasMatch()){
|
|
if(n) *n = 0;
|
|
return frame;
|
|
}
|
|
|
|
QString from = mycall;
|
|
bool isFromCompound = Varicode::isCompoundCallsign(from);
|
|
if(isFromCompound){
|
|
from = "<....>";
|
|
}
|
|
QString to = match.captured("callsign");
|
|
QString cmd = match.captured("cmd");
|
|
QString num = match.captured("num");
|
|
|
|
// ensure we have a directed command
|
|
if(cmd.isEmpty()){
|
|
if(n) *n = 0;
|
|
return frame;
|
|
}
|
|
|
|
// ensure we have a valid callsign
|
|
bool isToCompound = false;
|
|
bool validToCallsign = (to != mycall) && Varicode::isValidCallsign(to, &isToCompound);
|
|
if(!validToCallsign){
|
|
qDebug() << "to" << to << "is not a valid callsign";
|
|
if(n) *n = 0;
|
|
return frame;
|
|
}
|
|
|
|
// return back the parsed "to" field
|
|
if(pTo) *pTo = to;
|
|
if(pToCompound) *pToCompound = isToCompound;
|
|
|
|
// then replace the current processing with a placeholder that we _can_ pack into a directed command,
|
|
// because later we'll send the "to" field in a compound frame using the results of this directed pack
|
|
if(isToCompound){
|
|
to = "<....>";
|
|
}
|
|
|
|
qDebug() << "directed" << validToCallsign << isToCompound << to;
|
|
|
|
// validate command
|
|
if(!Varicode::isCommandAllowed(cmd) && !Varicode::isCommandAllowed(cmd.trimmed())){
|
|
if(n) *n = 0;
|
|
return frame;
|
|
}
|
|
|
|
// packing general number...
|
|
bool numOK = false;
|
|
quint8 inum = Varicode::packNum(num.trimmed(), &numOK);
|
|
if(numOK){
|
|
if(pNum) *pNum = num;
|
|
}
|
|
|
|
bool portable_from = false;
|
|
quint32 packed_from = Varicode::packCallsign(from, &portable_from);
|
|
|
|
bool portable_to = false;
|
|
quint32 packed_to = Varicode::packCallsign(to, &portable_to);
|
|
|
|
if(packed_from == 0 || packed_to == 0){
|
|
if(n) *n = 0;
|
|
return frame;
|
|
}
|
|
|
|
QString cmdOut;
|
|
quint8 packed_cmd = 0;
|
|
if(directed_cmds.contains(cmd)){
|
|
cmdOut = cmd;
|
|
packed_cmd = directed_cmds[cmdOut];
|
|
}
|
|
if(directed_cmds.contains(cmd.trimmed())){
|
|
cmdOut = cmd.trimmed();
|
|
packed_cmd = directed_cmds[cmdOut];
|
|
}
|
|
quint8 packed_flag = Varicode::FrameDirected;
|
|
quint8 packed_extra = (
|
|
(((int)portable_from) << 7) +
|
|
(((int)portable_to) << 6) +
|
|
inum
|
|
);
|
|
|
|
// [3][28][28][5],[2][6] = 72
|
|
auto bits = (
|
|
Varicode::intToBits(packed_flag, 3) +
|
|
Varicode::intToBits(packed_from, 28) +
|
|
Varicode::intToBits(packed_to, 28) +
|
|
Varicode::intToBits(packed_cmd % 32, 5)
|
|
);
|
|
|
|
if(pCmd) *pCmd = cmdOut;
|
|
if(n) *n = match.captured(0).length();
|
|
return Varicode::pack72bits(Varicode::bitsToInt(bits), packed_extra);
|
|
}
|
|
|
|
QStringList Varicode::unpackDirectedMessage(const QString &text, quint8 *pType){
|
|
QStringList unpacked;
|
|
|
|
if(text.length() < 12 || text.contains(" ")){
|
|
return unpacked;
|
|
}
|
|
|
|
// [3][28][22][11],[2][6] = 72
|
|
quint8 extra = 0;
|
|
auto bits = Varicode::intToBits(Varicode::unpack72bits(text, &extra), 64);
|
|
|
|
quint8 packed_flag = Varicode::bitsToInt(bits.mid(0, 3));
|
|
if(packed_flag != Varicode::FrameDirected){
|
|
return unpacked;
|
|
}
|
|
|
|
quint32 packed_from = Varicode::bitsToInt(bits.mid(3, 28));
|
|
quint32 packed_to = Varicode::bitsToInt(bits.mid(31, 28));
|
|
quint8 packed_cmd = Varicode::bitsToInt(bits.mid(59, 5));
|
|
|
|
bool portable_from = ((extra >> 7) & 1) == 1;
|
|
bool portable_to = ((extra >> 6) & 1) == 1;
|
|
extra = extra % 64;
|
|
|
|
QString from = Varicode::unpackCallsign(packed_from, portable_from);
|
|
QString to = Varicode::unpackCallsign(packed_to, portable_to);
|
|
QString cmd = directed_cmds.key(packed_cmd % 32);
|
|
|
|
unpacked.append(from);
|
|
unpacked.append(to);
|
|
unpacked.append(cmd);
|
|
|
|
if(extra != 0){
|
|
if(Varicode::isSNRCommand(cmd)){
|
|
unpacked.append(Varicode::formatSNR((int)extra-31));
|
|
} else {
|
|
unpacked.append(QString("%1").arg(extra-31));
|
|
}
|
|
}
|
|
|
|
if(pType) *pType = packed_flag;
|
|
return unpacked;
|
|
}
|
|
|
|
QString packHuffMessage(const QString &input, const QVector<bool> prefix, int *n){
|
|
static const int frameSize = 72;
|
|
|
|
QString frame;
|
|
|
|
// [1][1][70] = 72
|
|
// The first bit is a flag that indicates this is a data frame, technically encoded as [100]
|
|
// but, since none of the other frame types start with a 0, we can drop the two zeros and use
|
|
// them for encoding the first two bits of the actuall data sent. boom!
|
|
// The second bit is a flag that indicates this is not compressed frame (huffman coding)
|
|
QVector<bool> frameBits;
|
|
if(!prefix.isEmpty()){
|
|
frameBits << prefix;
|
|
}
|
|
|
|
int i = 0;
|
|
|
|
// only pack huff messages that only contain valid chars
|
|
QString::const_iterator it;
|
|
QSet<QString> validChars = Varicode::huffValidChars(Varicode::defaultHuffTable());
|
|
for(it = input.constBegin(); it != input.constEnd(); it++){
|
|
auto ch = (*it).toUpper();
|
|
if(!validChars.contains(ch)){
|
|
if(n) *n = 0;
|
|
return frame;
|
|
}
|
|
}
|
|
|
|
// pack using the default huff table
|
|
foreach(auto pair, Varicode::huffEncode(Varicode::defaultHuffTable(), input)){
|
|
auto charN = pair.first;
|
|
auto charBits = pair.second;
|
|
if(frameBits.length() + charBits.length() < frameSize){
|
|
frameBits += charBits;
|
|
i += charN;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
|
|
qDebug() << "Huff bits" << frameBits.length() << "chars" << i;
|
|
|
|
int pad = frameSize - frameBits.length();
|
|
if(pad){
|
|
// the way we will pad is this...
|
|
// set the bit after the frame to 0 and every bit after that a 1
|
|
// to unpad, seek from the end of the bits until you hit a zero... the rest is the actual frame.
|
|
for(int i = 0; i < pad; i++){
|
|
frameBits.append(i == 0 ? (bool)0 : (bool)1);
|
|
}
|
|
}
|
|
|
|
quint64 value = Varicode::bitsToInt(frameBits.constBegin(), 64);
|
|
quint8 rem = (quint8)Varicode::bitsToInt(frameBits.constBegin() + 64, 8);
|
|
frame = Varicode::pack72bits(value, rem);
|
|
|
|
if(n) *n = i;
|
|
|
|
return frame;
|
|
}
|
|
|
|
QString packCompressedMessage(const QString &input, QVector<bool> prefix, int *n){
|
|
static const int frameSize = 72;
|
|
|
|
QString frame;
|
|
|
|
// [1][1][70] = 72
|
|
// The first bit is a flag that indicates this is a data frame, technically encoded as [100]
|
|
// but, since none of the other frame types start with a 1, we can drop the two zeros and use
|
|
// them for encoding the first two bits of the actuall data sent. boom!
|
|
// The second bit is a flag that indicates this is a compressed frame (dense coding)
|
|
// For fast modes, we don't use the prefix since it is indicated by the JS8CallData flag.
|
|
QVector<bool> frameBits;
|
|
if(!prefix.isEmpty()){
|
|
frameBits << prefix;
|
|
}
|
|
|
|
int i = 0;
|
|
foreach(auto pair, JSC::compress(input)){
|
|
auto bits = pair.first;
|
|
auto chars = pair.second;
|
|
|
|
if(frameBits.length() + bits.length() < frameSize){
|
|
frameBits.append(bits);
|
|
i += chars;
|
|
continue;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
qDebug() << "Compressed bits" << frameBits.length() << "chars" << i;
|
|
|
|
int pad = frameSize - frameBits.length();
|
|
if(pad){
|
|
// the way we will pad is this...
|
|
// set the bit after the frame to 0 and every bit after that a 1
|
|
// to unpad, seek from the end of the bits until you hit a zero... the rest is the actual frame.
|
|
for(int i = 0; i < pad; i++){
|
|
frameBits.append(i == 0 ? (bool)0 : (bool)1);
|
|
}
|
|
}
|
|
|
|
quint64 value = Varicode::bitsToInt(frameBits.constBegin(), 64);
|
|
quint8 rem = (quint8)Varicode::bitsToInt(frameBits.constBegin() + 64, 8);
|
|
frame = Varicode::pack72bits(value, rem);
|
|
|
|
if(n) *n = i;
|
|
|
|
return frame;
|
|
}
|
|
|
|
// pack data message using 70 bits available flagged as data by the first 2 bits
|
|
QString Varicode::packDataMessage(const QString &input, int *n){
|
|
QString huffFrame;
|
|
int huffChars = 0;
|
|
huffFrame = packHuffMessage(input, {true, false}, &huffChars);
|
|
|
|
QString compressedFrame;
|
|
int compressedChars = 0;
|
|
compressedFrame = packCompressedMessage(input, {true, true}, &compressedChars);
|
|
|
|
if(huffChars > compressedChars){
|
|
if(n) *n = huffChars;
|
|
return huffFrame;
|
|
} else {
|
|
if(n) *n = compressedChars;
|
|
return compressedFrame;
|
|
}
|
|
}
|
|
|
|
// unpack data message using 70 bits available flagged as data by the first 2 bits
|
|
QString Varicode::unpackDataMessage(const QString &text){
|
|
QString unpacked;
|
|
|
|
if(text.length() < 12 || text.contains(" ")){
|
|
return unpacked;
|
|
}
|
|
|
|
quint8 rem = 0;
|
|
quint64 value = Varicode::unpack72bits(text, &rem);
|
|
auto bits = Varicode::intToBits(value, 64) + Varicode::intToBits(rem, 8);
|
|
|
|
bool isData = bits.at(0);
|
|
if(!isData){
|
|
return unpacked;
|
|
}
|
|
|
|
bits = bits.mid(1);
|
|
|
|
bool compressed = bits.at(0);
|
|
int n = bits.lastIndexOf(0);
|
|
|
|
// trim off the pad bits
|
|
bits = bits.mid(1, n-1);
|
|
|
|
if(compressed){
|
|
// partial word (s,c)-dense coding with code tables
|
|
unpacked = JSC::decompress(bits);
|
|
} else {
|
|
// huff decode the bits (without escapes)
|
|
unpacked = Varicode::huffDecode(Varicode::defaultHuffTable(), bits);
|
|
}
|
|
|
|
return unpacked;
|
|
}
|
|
|
|
#define JS8_FAST_DATA_CAN_USE_HUFF 0
|
|
|
|
// pack data message using the full 72 bits available (with the data flag in the i3bit header)
|
|
QString Varicode::packFastDataMessage(const QString &input, int *n){
|
|
#if JS8_FAST_DATA_CAN_USE_HUFF
|
|
QString huffFrame;
|
|
int huffChars = 0;
|
|
huffFrame = packHuffMessage(input, {false}, &huffChars);
|
|
|
|
QString compressedFrame;
|
|
int compressedChars = 0;
|
|
compressedFrame = packCompressedMessage(input, {true}, &compressedChars);
|
|
|
|
if(huffChars > compressedChars){
|
|
if(n) *n = huffChars;
|
|
return huffFrame;
|
|
} else {
|
|
if(n) *n = compressedChars;
|
|
return compressedFrame;
|
|
}
|
|
#else
|
|
QString compressedFrame;
|
|
int compressedChars = 0;
|
|
compressedFrame = packCompressedMessage(input, {}, &compressedChars);
|
|
|
|
if(n) *n = compressedChars;
|
|
return compressedFrame;
|
|
#endif
|
|
}
|
|
|
|
// unpack data message using the full 72 bits available (with the data flag in the i3bit header)
|
|
QString Varicode::unpackFastDataMessage(const QString &text){
|
|
QString unpacked;
|
|
|
|
if(text.length() < 12 || text.contains(" ")){
|
|
return unpacked;
|
|
}
|
|
|
|
quint8 rem = 0;
|
|
quint64 value = Varicode::unpack72bits(text, &rem);
|
|
auto bits = Varicode::intToBits(value, 64) + Varicode::intToBits(rem, 8);
|
|
|
|
#if JS8_FAST_DATA_CAN_USE_HUFF
|
|
bool compressed = bits.at(0);
|
|
int n = bits.lastIndexOf(0);
|
|
|
|
// trim off the pad bits
|
|
bits = bits.mid(1, n-1);
|
|
|
|
if(compressed){
|
|
// partial word (s,c)-dense coding with code tables
|
|
unpacked = JSC::decompress(bits);
|
|
} else {
|
|
// huff decode the bits (without escapes)
|
|
unpacked = Varicode::huffDecode(Varicode::defaultHuffTable(), bits);
|
|
}
|
|
#else
|
|
int n = bits.lastIndexOf(0);
|
|
|
|
// trim off the pad bits
|
|
bits = bits.mid(0, n);
|
|
|
|
// partial word (s,c)-dense coding with code tables
|
|
unpacked = JSC::decompress(bits);
|
|
#endif
|
|
|
|
return unpacked;
|
|
}
|
|
|
|
// TODO: remove the dependence on providing all this data?
|
|
QList<QPair<QString, int>> Varicode::buildMessageFrames(QString const& mycall,
|
|
QString const& mygrid,
|
|
QString const& selectedCall,
|
|
QString const& text,
|
|
bool forceIdentify,
|
|
bool forceData,
|
|
int submode,
|
|
MessageInfo *pInfo){
|
|
|
|
#define ALLOW_SEND_COMPOUND 1
|
|
#define ALLOW_SEND_COMPOUND_DIRECTED 1
|
|
#define AUTO_PREPEND_DIRECTED 1
|
|
#define AUTO_REMOVE_MYCALL 1
|
|
#define AUTO_PREPEND_DIRECTED_ALLOW_TEXT_CALLSIGNS 1
|
|
#define ALLOW_FORCE_IDENTIFY 1
|
|
|
|
bool mycallCompound = Varicode::isCompoundCallsign(mycall);
|
|
|
|
QList<QPair<QString, int>> allFrames;
|
|
|
|
#if JS8_NO_MULTILINE
|
|
// auto lines = text.split(QRegExp("[\\r\\n]"), QString::SkipEmptyParts);
|
|
#else
|
|
QStringList lines = { text };
|
|
#endif
|
|
|
|
foreach(QString line, lines){
|
|
QList<QPair<QString, int>> lineFrames;
|
|
|
|
// once we find a directed call, data encode the rest of the line.
|
|
bool hasDirected = false;
|
|
|
|
// do the same for when we have sent data...
|
|
bool hasData = false;
|
|
|
|
// or if we're forcing data to be sent...
|
|
if(forceData){
|
|
forceIdentify = false;
|
|
hasData = true;
|
|
}
|
|
|
|
#if AUTO_REMOVE_MYCALL
|
|
// remove our callsign from the start of the line...
|
|
if(line.startsWith(mycall + ":") || line.startsWith(mycall + " ")){
|
|
line = lstrip(line.mid(mycall.length() + 1));
|
|
}
|
|
#endif
|
|
|
|
#if AUTO_RSTRIP_WHITESPACE
|
|
// remove trailing whitespace as long as there are characters left afterwards
|
|
auto rline = rstrip(line);
|
|
if(!rline.isEmpty()){
|
|
line = rline;
|
|
}
|
|
#endif
|
|
|
|
#if AUTO_PREPEND_DIRECTED
|
|
// see if we need to prepend the directed call to the line...
|
|
// if we have a selected call and the text doesn't start with that call...
|
|
// and if this isn't a raw message (starting with "`")... then...
|
|
if(!selectedCall.isEmpty() && !line.startsWith(selectedCall) && !line.startsWith("`") && !forceData){
|
|
bool lineStartsWithBaseCall = (
|
|
line.startsWith("@ALLCALL") ||
|
|
Varicode::startsWithCQ(line) ||
|
|
Varicode::startsWithHB(line)
|
|
);
|
|
|
|
#if AUTO_PREPEND_DIRECTED_ALLOW_TEXT_CALLSIGNS
|
|
auto calls = Varicode::parseCallsigns(line);
|
|
bool lineStartsWithStandardCall = !calls.isEmpty() && line.startsWith(calls.first()) && calls.first().length() > 3;
|
|
#else
|
|
bool lineStartsWithStandardCall = false;
|
|
#endif
|
|
|
|
if(lineStartsWithBaseCall || lineStartsWithStandardCall){
|
|
// pass
|
|
} else {
|
|
// if the message doesn't start with a base call
|
|
// and if there are no other callsigns in this message
|
|
// or if the first callsign in the message isn't at the beginning...
|
|
// then we should be auto-prefixing this line with the selected call
|
|
auto sep = line.startsWith(" ") ? "" : " ";
|
|
line = QString("%1%2%3").arg(selectedCall).arg(sep).arg(line);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
while(line.size() > 0){
|
|
QString frame;
|
|
|
|
bool useBcn = false;
|
|
#if ALLOW_SEND_COMPOUND
|
|
bool useCmp = false;
|
|
#endif
|
|
bool useDir = false;
|
|
bool useDat = false;
|
|
|
|
int l = 0;
|
|
QString bcnFrame = Varicode::packHeartbeatMessage(line, mycall, &l);
|
|
|
|
#if ALLOW_SEND_COMPOUND
|
|
int o = 0;
|
|
QString cmpFrame = Varicode::packCompoundMessage(line, &o);
|
|
#endif
|
|
|
|
int n = 0;
|
|
QString dirCmd;
|
|
QString dirTo;
|
|
QString dirNum;
|
|
bool dirToCompound = false;
|
|
QString dirFrame = Varicode::packDirectedMessage(line, mycall, &dirTo, &dirToCompound, &dirCmd, &dirNum, &n);
|
|
if(dirToCompound){
|
|
qDebug() << "directed message to field is compound" << dirTo;
|
|
}
|
|
|
|
#if ALLOW_FORCE_IDENTIFY
|
|
// if we're sending a data message, then ensure our callsign is included automatically
|
|
bool isLikelyDataFrame = lineFrames.isEmpty() && selectedCall.isEmpty() && dirTo.isEmpty() && l == 0 && o == 0;
|
|
if(forceIdentify && isLikelyDataFrame && !line.contains(mycall)){
|
|
line = QString("%1: %2").arg(mycall).arg(line);
|
|
}
|
|
#endif
|
|
int m = 0;
|
|
bool fastDataFrame = false;
|
|
QString datFrame;
|
|
if(submode == Varicode::JS8CallNormal){
|
|
datFrame = Varicode::packDataMessage(line, &m);
|
|
fastDataFrame = false;
|
|
} else {
|
|
datFrame = Varicode::packFastDataMessage(line, &m);
|
|
fastDataFrame = true;
|
|
}
|
|
|
|
// if this parses to a standard FT8 free text message
|
|
// but it can be parsed as a directed message, then we
|
|
// should send the directed version. if we've already sent
|
|
// a directed message or a data frame, we will only follow it
|
|
// with more data frames.
|
|
|
|
if(!hasDirected && !hasData && l > 0){
|
|
useBcn = true;
|
|
hasDirected = false;
|
|
frame = bcnFrame;
|
|
}
|
|
#if ALLOW_SEND_COMPOUND
|
|
else if(!hasDirected && !hasData && o > 0){
|
|
useCmp = true;
|
|
hasDirected = false;
|
|
frame = cmpFrame;
|
|
}
|
|
#endif
|
|
else if(!hasDirected && !hasData && n > 0){
|
|
useDir = true;
|
|
hasDirected = true;
|
|
frame = dirFrame;
|
|
}
|
|
else if (m > 0) {
|
|
useDat = true;
|
|
hasData = true;
|
|
frame = datFrame;
|
|
}
|
|
|
|
if(useBcn){
|
|
lineFrames.append({ frame, Varicode::JS8Call });
|
|
line = line.mid(l);
|
|
}
|
|
|
|
#if ALLOW_SEND_COMPOUND
|
|
if(useCmp){
|
|
lineFrames.append({ frame, Varicode::JS8Call });
|
|
line = line.mid(o);
|
|
}
|
|
#endif
|
|
|
|
if(useDir){
|
|
bool shouldUseStandardFrame = true;
|
|
|
|
#if ALLOW_SEND_COMPOUND_DIRECTED
|
|
/**
|
|
* We have a few special cases when we are sending to a compound call, or our call is a compound call, or both.
|
|
* CASE 0: Non-compound: KN4CRD: J1Y ACK
|
|
* -> One standard directed message frame
|
|
*
|
|
* CASE 1: Compound From: KN4CRD/P: J1Y ACK
|
|
* -> One standard compound frame, followed by a standard directed message frame with placeholder
|
|
* -> The second standard directed frame _could_ be replaced with a compound directed frame
|
|
* -> <KN4CRD/P EM73> then <....>: J1Y ACK
|
|
* -> <KN4CRD/P EM73> then <J1Y ACK>
|
|
*
|
|
* CASE 2: Compound To: KN4CRD: J1Y/P ACK
|
|
* -> One standard compound frame, followed by a compound directed frame
|
|
* -> <KN4CRD EM73> then <J1Y/P ACK>
|
|
*
|
|
* CASE 3: Compound From & To: KN4CRD/P: J1Y/P ACK
|
|
* -> One standard compound frame, followed by a compound directed frame
|
|
* -> <KN4CRD/P EM73> then <J1Y/P ACK>
|
|
**/
|
|
if(mycallCompound || dirToCompound){
|
|
qDebug() << "compound?" << mycallCompound << dirToCompound;
|
|
// Cases 1, 2, 3 all send a standard compound frame first...
|
|
QString deCompoundMessage = QString("`%1 %2").arg(mycall).arg(mygrid);
|
|
QString deCompoundFrame = Varicode::packCompoundMessage(deCompoundMessage, nullptr);
|
|
if(!deCompoundFrame.isEmpty()){
|
|
lineFrames.append({ deCompoundFrame, Varicode::JS8Call });
|
|
}
|
|
|
|
// Followed, by a standard OR compound directed message...
|
|
QString dirCompoundMessage = QString("`%1%2%3").arg(dirTo).arg(dirCmd).arg(dirNum);
|
|
QString dirCompoundFrame = Varicode::packCompoundMessage(dirCompoundMessage, nullptr);
|
|
if(!dirCompoundFrame.isEmpty()){
|
|
lineFrames.append({ dirCompoundFrame, Varicode::JS8Call });
|
|
}
|
|
shouldUseStandardFrame = false;
|
|
}
|
|
#endif
|
|
|
|
if(shouldUseStandardFrame) {
|
|
// otherwise, just send the standard directed frame
|
|
lineFrames.append({ frame, Varicode::JS8Call });
|
|
}
|
|
|
|
line = line.mid(n);
|
|
|
|
// generate a checksum for buffered commands with line data
|
|
if(Varicode::isCommandBuffered(dirCmd) && !line.isEmpty()){
|
|
qDebug() << "generating checksum for line" << line << line.mid(1);
|
|
|
|
// strip leading whitespace after a buffered directed command
|
|
line = lstrip(line);
|
|
|
|
qDebug() << "before:" << line;
|
|
|
|
#if 1
|
|
int checksumSize = Varicode::isCommandChecksumed(dirCmd);
|
|
#else
|
|
int checksumSize = 0;
|
|
#endif
|
|
|
|
if(checksumSize == 32){
|
|
line = line + " " + Varicode::checksum32(line);
|
|
} else if (checksumSize == 16) {
|
|
line = line + " " + Varicode::checksum16(line);
|
|
} else if (checksumSize == 0) {
|
|
// pass
|
|
qDebug() << "no checksum required for cmd" << dirCmd;
|
|
}
|
|
qDebug() << "after:" << line;
|
|
}
|
|
|
|
if(pInfo){
|
|
pInfo->dirCmd = dirCmd;
|
|
pInfo->dirTo = dirTo;
|
|
pInfo->dirNum = dirNum;
|
|
}
|
|
}
|
|
|
|
if(useDat){
|
|
// use the standard data frame
|
|
lineFrames.append({ frame, fastDataFrame ? Varicode::JS8CallData : Varicode::JS8Call });
|
|
line = line.mid(m);
|
|
}
|
|
}
|
|
|
|
if(!lineFrames.isEmpty()){
|
|
lineFrames.first().second |= Varicode::JS8CallFirst;
|
|
lineFrames.last().second |= Varicode::JS8CallLast;
|
|
}
|
|
|
|
allFrames.append(lineFrames);
|
|
}
|
|
|
|
return allFrames;
|
|
}
|
|
|
|
BuildMessageFramesThread::BuildMessageFramesThread(const QString &mycall,
|
|
const QString &mygrid,
|
|
const QString &selectedCall,
|
|
const QString &text,
|
|
bool forceIdentify,
|
|
bool forceData,
|
|
int submode,
|
|
QObject *parent):
|
|
QThread(parent),
|
|
m_mycall{mycall},
|
|
m_mygrid{mygrid},
|
|
m_selectedCall{selectedCall},
|
|
m_text{text},
|
|
m_forceIdentify{forceIdentify},
|
|
m_forceData{forceData},
|
|
m_submode{submode}
|
|
{
|
|
}
|
|
|
|
void BuildMessageFramesThread::run(){
|
|
auto results = Varicode::buildMessageFrames(
|
|
m_mycall,
|
|
m_mygrid,
|
|
m_selectedCall,
|
|
m_text,
|
|
m_forceIdentify,
|
|
m_forceData,
|
|
m_submode
|
|
);
|
|
|
|
// TODO: jsherer - we wouldn't normally use decodedtext.h here... but it's useful for computing the actual frames transmitted.
|
|
QStringList textList;
|
|
qDebug() << "frames:";
|
|
foreach(auto frame, results){
|
|
auto dt = DecodedText(frame.first, frame.second, m_submode);
|
|
qDebug() << "->" << frame << dt.message() << Varicode::frameTypeString(dt.frameType()) << "submode:" << m_submode;
|
|
textList.append(dt.message());
|
|
}
|
|
|
|
auto transmitText = textList.join("");
|
|
emit resultReady(transmitText, results.length());
|
|
}
|