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#include "decodedtext.h"
#include <QStringList>
#include <QRegularExpression>
#include <QDebug>
extern "C" {
bool stdmsg_(char const * msg, fortran_charlen_t);
}
namespace
{
QRegularExpression words_re {R"(^(?:(?<word1>(?:CQ|DE|QRZ)(?:\s?DX|\s(?:[A-Z]{2}|\d{3}))|[A-Z0-9/]+)\s)(?:(?<word2>[A-Z0-9/]+)(?:\s(?<word3>[-+A-Z0-9]+)(?:\s(?<word4>(?:OOO|(?!RR73)[A-R]{2}[0-9]{2})))?)?)?)"};
}
DecodedText::DecodedText (QString const& the_string)
: string_ {the_string.left (the_string.indexOf (QChar::Nbsp))} // discard appended info
, padding_ {string_.indexOf (" ") > 4 ? 2 : 0} // allow for
// seconds
, message_ {string_.mid (column_qsoText + padding_).trimmed ()}
, is_standard_ {false}
{
// qDebug () << "DecodedText: the_string:" << the_string << "Nbsp pos:" << the_string.indexOf (QChar::Nbsp);
if (message_.length() >= 1)
{
message0_ = message_.left(36);
message_ = message_.left(36).remove (QRegularExpression {"[<>]"});
int i1 = message_.indexOf ('\r');
if (i1 > 0)
{
message_ = message_.left (i1 - 1);
}
if (message_.contains (QRegularExpression {"^(CQ|QRZ)\\s"}))
{
// TODO this magic position 16 is guaranteed to be after the
// last space in a decoded CQ or QRZ message but before any
// appended DXCC entity name or worked before information
auto eom_pos = message_.indexOf (' ', 16);
// we always want at least the characters to position 16
if (eom_pos < 16) eom_pos = message_.size () - 1;
// remove DXCC entity and worked B4 status. TODO need a better way to do this
message_ = message_.left (eom_pos + 1);
}
// stdmsg is a Fortran routine that packs the text, unpacks it
// and compares the result
auto message_c_string = message0_.toLocal8Bit ();
message_c_string += QByteArray {37 - message_c_string.size (), ' '};
is_standard_ = stdmsg_(message_c_string.constData(),37);
}
};
QStringList DecodedText::messageWords () const
{
if (is_standard_)
{
// extract up to the first four message words
return words_re.match (message_).capturedTexts ();
}
// simple word split for free text messages
auto words = message_.split (' ', QString::SkipEmptyParts);
// add whole message as item 0 to mimic RE capture list
words.prepend (message_);
return words;
}
QString DecodedText::CQersCall() const
{
QRegularExpression callsign_re {R"(^(CQ|DE|QRZ)(\s?DX|\s([A-Z]{2,4}|\d{3}))?\s(?<callsign>[A-Z0-9/]{2,})(\s[A-R]{2}[0-9]{2})?)"};
return callsign_re.match (message_).captured ("callsign");
}
bool DecodedText::isJT65() const
{
return string_.indexOf("#") == column_mode + padding_;
}
bool DecodedText::isJT9() const
{
return string_.indexOf("@") == column_mode + padding_;
}
bool DecodedText::isTX() const
{
int i = string_.indexOf("Tx");
return (i >= 0 && i < 15); // TODO guessing those numbers. Does Tx ever move?
}
bool DecodedText::isLowConfidence () const
{
return QChar {'?'} == string_.mid (padding_ + column_qsoText + 21, 1);
}
int DecodedText::frequencyOffset() const
{
return string_.mid(column_freq + padding_,4).toInt();
}
int DecodedText::snr() const
{
int i1=string_.indexOf(" ")+1;
return string_.mid(i1,3).toInt();
}
float DecodedText::dt() const
{
return string_.mid(column_dt + padding_,5).toFloat();
}
/*
2343 -11 0.8 1259 # YV6BFE F6GUU R-08
2343 -19 0.3 718 # VE6WQ SQ2NIJ -14
2343 -7 0.3 815 # KK4DSD W7VP -16
2343 -13 0.1 3627 @ CT1FBK IK5YZT R+02
0605 Tx 1259 # CQ VK3ACF QF22
*/
// find and extract any report. Returns true if this is a standard message
bool DecodedText::report(QString const& myBaseCall, QString const& dxBaseCall, /*mod*/QString& report) const
{
if (message_.size () < 1) return false;
QStringList const& w = message_.split(" ",QString::SkipEmptyParts);
if (w.size ()
&& is_standard_ && (w[0] == myBaseCall
|| w[0].endsWith ("/" + myBaseCall)
|| w[0].startsWith (myBaseCall + "/")
|| (w.size () > 1 && !dxBaseCall.isEmpty ()
&& (w[1] == dxBaseCall
|| w[1].endsWith ("/" + dxBaseCall)
|| w[1].startsWith (dxBaseCall + "/")))))
{
QString tt="";
if(w.size() > 2) tt=w[2];
bool ok;
auto i1=tt.toInt(&ok);
if (ok and i1>=-50 and i1<50)
{
report = tt;
}
else
{
if (tt.mid(0,1)=="R")
{
i1=tt.mid(1).toInt(&ok);
if(ok and i1>=-50 and i1<50)
{
report = tt.mid(1);
}
}
}
}
return is_standard_;
}
// get the first text word, usually the call
QString DecodedText::call() const
{
return words_re.match (message_).captured ("word1");
}
// get the second word, most likely the de call and the third word, most likely grid
void DecodedText::deCallAndGrid(/*out*/QString& call, QString& grid) const
{
auto const& match = words_re.match (message_);
call = match.captured ("word2");
grid = match.captured ("word3");
if ("R" == grid) grid = match.captured ("word4");
if(match.captured("word1")=="CQ" and call.length()>=3 and call.length()<=4
and !call.contains(QRegExp("[0-9]"))) {
//Second word has length 3 or 4 and contains no digits
call = match.captured ("word3");
grid = match.captured ("word4");
}
}
unsigned DecodedText::timeInSeconds() const
{
return 3600 * string_.mid (column_time, 2).toUInt ()
+ 60 * string_.mid (column_time + 2, 2).toUInt()
+ (padding_ ? string_.mid (column_time + 2 + padding_, 2).toUInt () : 0U);
}
/*
2343 -11 0.8 1259 # YV6BFE F6GUU R-08
2343 -19 0.3 718 # VE6WQ SQ2NIJ -14
2343 -7 0.3 815 # KK4DSD W7VP -16
2343 -13 0.1 3627 @ CT1FBK IK5YZT R+02
0605 Tx 1259 # CQ VK3ACF QF22
*/
QString DecodedText::report() const // returns a string of the SNR field with a leading + or - followed by two digits
{
int sr = snr();
if (sr<-50)
sr = -50;
else
if (sr > 49)
sr = 49;
QString rpt;
rpt.sprintf("%d",abs(sr));
if (sr > 9)
rpt = "+" + rpt;
else
if (sr >= 0)
rpt = "+0" + rpt;
else
if (sr >= -9)
rpt = "-0" + rpt;
else
rpt = "-" + rpt;
return rpt;
}
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