WSJT-X/decodedtext.cpp
Bill Somerville 388f5d13ab Better detection of allsign from general calls (CQ, QRZ ...)
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8027 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-08-16 12:10:50 +00:00

173 lines
4.4 KiB
C++

#include "decodedtext.h"
#include <QStringList>
#include <QRegularExpression>
extern "C" {
bool stdmsg_(const char* msg, int len);
}
QString DecodedText::CQersCall()
{
QRegularExpression callsign_re {R"(\s(CQ|DE|QRZ)(\s?DX|\s([A-Z]{2}|\d{3}))?\s(?<callsign>[A-Z0-9/]{2,})(\s[A-R]{2}[0-9]{2})?)"};
return callsign_re.match (_string).captured ("callsign");
}
bool DecodedText::isJT65()
{
return _string.indexOf("#") == column_mode + padding_;
}
bool DecodedText::isJT9()
{
return _string.indexOf("@") == column_mode + padding_;
}
bool DecodedText::isTX()
{
int i = _string.indexOf("Tx");
return (i >= 0 && i < 15); // TODO guessing those numbers. Does Tx ever move?
}
bool DecodedText::isLowConfidence ()
{
return QChar {'?'} == _string.mid (padding_ + column_qsoText + 21, 1);
}
int DecodedText::frequencyOffset()
{
return _string.mid(column_freq + padding_,4).toInt();
}
int DecodedText::snr()
{
int i1=_string.indexOf(" ")+1;
return _string.mid(i1,3).toInt();
}
float DecodedText::dt()
{
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)
{
QString msg=_string.mid(column_qsoText + padding_).trimmed();
if(msg.length() < 1) return false;
msg = msg.left (22).remove (QRegularExpression {"[<>]"});
int i1=msg.indexOf('\r');
if (i1>0)
msg=msg.left (i1-1);
bool b = stdmsg_ ((msg + " ").toLatin1().constData(),22); // stdmsg is a fortran routine that packs the text, unpacks it and compares the result
QStringList w=msg.split(" ",QString::SkipEmptyParts);
if(w.size ()
&& b && (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;
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 b;
}
// get the first text word, usually the call
QString DecodedText::call()
{
auto call = _string;
call = call.replace (QRegularExpression {" CQ ([A-Z]{2,2}|[0-9]{3,3}) "}, " CQ_\\1 ").mid (column_qsoText + padding_);
int i = call.indexOf(" ");
return call.mid(0,i);
}
// get the second word, most likely the de call and the third word, most likely grid
void DecodedText::deCallAndGrid(/*out*/QString& call, QString& grid)
{
auto msg = _string;
if(msg.mid(4,1)!=" ") msg=msg.mid(0,4)+msg.mid(6,-1); //Remove seconds from UTC
msg = msg.replace (QRegularExpression {" CQ ([A-Z]{2,2}|[0-9]{3,3}) "}, " CQ_\\1 ").mid (column_qsoText + padding_);
int i1 = msg.indexOf (" ");
call = msg.mid (i1 + 1);
int i2 = call.indexOf (" ");
if (" R " == call.mid (i2, 3)) // MSK144 contest mode report
{
grid = call.mid (i2 + 3, 4);
}
else
{
grid = call.mid (i2 + 1, 4);
}
call = call.left (i2).replace (">", "");
}
int DecodedText::timeInSeconds()
{
return 60*_string.mid(column_time,2).toInt() + _string.mid(2,2).toInt();
}
/*
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() // 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;
}