static bool
ParseArcTNP(const TCHAR *buffer, TempAirspaceType &temp_area)
{
if (temp_area.points.empty())
return false;
// (ANTI-)CLOCKWISE RADIUS=34.95 CENTRE=N523333 E0131603 TO=N522052 E0122236
GeoPoint from = temp_area.points.back();
const TCHAR* parameter;
if ((parameter = _tcsstr(buffer, _T(" "))) == nullptr)
return false;
if ((parameter = StringAfterPrefixCI(parameter, _T(" CENTRE="))) == nullptr)
return false;
if (!ParseCoordsTNP(parameter, temp_area.center))
return false;
if ((parameter = _tcsstr(parameter, _T(" "))) == nullptr)
return false;
parameter++;
if ((parameter = _tcsstr(parameter, _T(" "))) == nullptr)
return false;
if ((parameter = StringAfterPrefixCI(parameter, _T(" TO="))) == nullptr)
return false;
GeoPoint to;
if (!ParseCoordsTNP(parameter, to))
return false;
temp_area.AppendArc(from, to);
return true;
}
static void
ParseArcBearings(const TCHAR *buffer, TempAirspaceType &temp_area)
{
// Determine radius and start/end bearing
TCHAR *endptr;
temp_area.radius = Units::ToSysUnit(fixed(_tcstod(&buffer[2], &endptr)), Unit::NAUTICAL_MILES);
Angle start_bearing = Angle::Degrees(_tcstod(&endptr[1], &endptr)).AsBearing();
Angle end_bearing = Angle::Degrees(_tcstod(&endptr[1], &endptr)).AsBearing();
temp_area.AppendArc(start_bearing, end_bearing);
}
static bool
ParseArcPoints(const TCHAR *buffer, TempAirspaceType &temp_area)
{
// Read start coordinates
GeoPoint start;
if (!ReadCoords(&buffer[3], start))
return false;
// Skip comma character
const TCHAR* comma = _tcschr(buffer, ',');
if (!comma)
return false;
// Read end coordinates
GeoPoint end;
if (!ReadCoords(&comma[1], end))
return false;
temp_area.AppendArc(start, end);
return true;
}
static bool
ParseLineTNP(Airspaces &airspace_database, TCHAR *line,
TempAirspaceType &temp_area, bool &ignore)
{
// Strip comments
TCHAR *comment = _tcschr(line, _T('*'));
if (comment != nullptr)
*comment = _T('\0');
const TCHAR* parameter;
if ((parameter = StringAfterPrefixCI(line, _T("INCLUDE="))) != nullptr) {
if (StringStartsWithIgnoreCase(parameter, _T("YES")))
ignore = false;
else if (StringStartsWithIgnoreCase(parameter, _T("NO")))
ignore = true;
return true;
}
if (ignore)
return true;
if ((parameter = StringAfterPrefixCI(line, _T("POINT="))) != nullptr) {
GeoPoint temp_point;
if (!ParseCoordsTNP(parameter, temp_point))
return false;
temp_area.points.push_back(temp_point);
} else if ((parameter =
StringAfterPrefixCI(line, _T("CIRCLE "))) != nullptr) {
if (!ParseCircleTNP(parameter, temp_area))
return false;
temp_area.AddCircle(airspace_database);
temp_area.ResetTNP();
} else if ((parameter =
StringAfterPrefixCI(line, _T("CLOCKWISE "))) != nullptr) {
temp_area.rotation = 1;
if (!ParseArcTNP(parameter, temp_area))
return false;
} else if ((parameter =
StringAfterPrefixCI(line, _T("ANTI-CLOCKWISE "))) != nullptr) {
temp_area.rotation = -1;
if (!ParseArcTNP(parameter, temp_area))
return false;
} else if ((parameter = StringAfterPrefixCI(line, _T("TITLE="))) != nullptr) {
temp_area.AddPolygon(airspace_database);
temp_area.ResetTNP();
temp_area.name = parameter;
} else if ((parameter = StringAfterPrefixCI(line, _T("TYPE="))) != nullptr) {
temp_area.AddPolygon(airspace_database);
temp_area.ResetTNP();
temp_area.type = ParseTypeTNP(parameter);
} else if ((parameter = StringAfterPrefixCI(line, _T("CLASS="))) != nullptr) {
temp_area.type = ParseClassTNP(parameter);
} else if ((parameter = StringAfterPrefixCI(line, _T("TOPS="))) != nullptr) {
ReadAltitude(parameter, temp_area.top);
} else if ((parameter = StringAfterPrefixCI(line, _T("BASE="))) != nullptr) {
ReadAltitude(parameter, temp_area.base);
} else if ((parameter = StringAfterPrefixCI(line, _T("RADIO="))) != nullptr) {
temp_area.radio = parameter;
} else if ((parameter = StringAfterPrefixCI(line, _T("ACTIVE="))) != nullptr) {
if (StringIsEqualIgnoreCase(parameter, _T("WEEKEND")))
temp_area.days_of_operation.SetWeekend();
else if (StringIsEqualIgnoreCase(parameter, _T("WEEKDAY")))
temp_area.days_of_operation.SetWeekdays();
else if (StringIsEqualIgnoreCase(parameter, _T("EVERYDAY")))
temp_area.days_of_operation.SetAll();
}
return true;
}
static bool
ParseLine(Airspaces &airspace_database, TCHAR *line,
TempAirspaceType &temp_area)
{
const TCHAR *value;
// Strip comments
TCHAR *comment = _tcschr(line, _T('*'));
if (comment != nullptr)
*comment = _T('\0');
// Only return expected lines
switch (line[0]) {
case _T('D'):
case _T('d'):
switch (line[1]) {
case _T('P'):
case _T('p'):
value = ValueAfterSpace(line + 2);
if (value == nullptr)
break;
{
GeoPoint temp_point;
if (!ReadCoords(value, temp_point))
return false;
temp_area.points.push_back(temp_point);
break;
}
case _T('C'):
case _T('c'):
temp_area.radius = Units::ToSysUnit(fixed(ParseDouble(&line[2])),
Unit::NAUTICAL_MILES);
temp_area.AddCircle(airspace_database);
temp_area.Reset();
break;
case _T('A'):
case _T('a'):
ParseArcBearings(line, temp_area);
break;
case _T('B'):
case _T('b'):
return ParseArcPoints(line, temp_area);
default:
return true;
}
break;
case _T('V'):
case _T('v'):
// Need to set these while in count mode, or DB/DA will crash
if ((value = StringAfterPrefixCI(SkipSpaces(line + 1), _T("X="))) != nullptr) {
if (!ReadCoords(value, temp_area.center))
return false;
} else if (StringAfterPrefixCI(SkipSpaces(line + 1), _T("D=-"))) {
temp_area.rotation = -1;
} else if (StringAfterPrefixCI(SkipSpaces(line + 1), _T("D=+"))) {
temp_area.rotation = +1;
}
break;
case _T('A'):
case _T('a'):
switch (line[1]) {
case _T('C'):
case _T('c'):
value = ValueAfterSpace(line + 2);
if (value == nullptr)
break;
temp_area.AddPolygon(airspace_database);
temp_area.Reset();
temp_area.type = ParseType(value);
break;
case _T('N'):
case _T('n'):
value = ValueAfterSpace(line + 2);
if (value != nullptr)
temp_area.name = value;
break;
case _T('L'):
case _T('l'):
value = ValueAfterSpace(line + 2);
if (value != nullptr)
ReadAltitude(value, temp_area.base);
break;
case _T('H'):
case _T('h'):
value = ValueAfterSpace(line + 2);
if (value != nullptr)
ReadAltitude(value, temp_area.top);
break;
case _T('R'):
case _T('r'):
value = ValueAfterSpace(line + 2);
if (value != nullptr)
temp_area.radio = value;
break;
default:
return true;
}
break;
}
return true;
}
static bool
ParseLineTNP(Airspaces &airspace_database, const TCHAR *line,
TempAirspaceType &temp_area, bool &ignore)
{
const TCHAR* parameter;
if ((parameter = string_after_prefix_ci(line, _T("INCLUDE="))) != NULL) {
if (_tcsicmp(parameter, _T("YES")) == 0)
ignore = false;
else if (_tcsicmp(parameter, _T("NO")) == 0)
ignore = true;
return true;
}
if (ignore)
return true;
if ((parameter = string_after_prefix_ci(line, _T("TITLE="))) != NULL) {
temp_area.Name = parameter;
} else if ((parameter = string_after_prefix_ci(line, _T("RADIO="))) != NULL) {
temp_area.Radio = parameter;
} else if ((parameter = string_after_prefix_ci(line, _T("ACTIVE="))) != NULL) {
if (_tcsicmp(parameter, _T("WEEKEND")) == 0)
temp_area.days_of_operation.set_weekend();
else if (_tcsicmp(parameter, _T("WEEKDAY")) == 0)
temp_area.days_of_operation.set_weekdays();
else if (_tcsicmp(parameter, _T("EVERYDAY")) == 0)
temp_area.days_of_operation.set_all();
} else if ((parameter = string_after_prefix_ci(line, _T("TYPE="))) != NULL) {
if (!temp_area.Waiting)
temp_area.AddPolygon(airspace_database);
temp_area.reset();
temp_area.Type = ParseTypeTNP(parameter);
temp_area.Waiting = false;
} else if ((parameter = string_after_prefix_ci(line, _T("CLASS="))) != NULL) {
if (temp_area.Type == OTHER)
temp_area.Type = ParseClassTNP(parameter);
} else if ((parameter = string_after_prefix_ci(line, _T("TOPS="))) != NULL) {
ReadAltitude(parameter, &temp_area.Top);
} else if ((parameter = string_after_prefix_ci(line, _T("BASE="))) != NULL) {
ReadAltitude(parameter, &temp_area.Base);
} else if ((parameter = string_after_prefix_ci(line, _T("POINT="))) != NULL) {
GeoPoint TempPoint;
if (!ParseCoordsTNP(parameter, TempPoint))
return false;
temp_area.points.push_back(TempPoint);
} else if ((parameter =
string_after_prefix_ci(line, _T("CIRCLE "))) != NULL) {
if (!ParseCircleTNP(parameter, temp_area))
return false;
temp_area.AddCircle(airspace_database);
} else if ((parameter =
string_after_prefix_ci(line, _T("CLOCKWISE "))) != NULL) {
temp_area.Rotation = 1;
if (!ParseArcTNP(parameter, temp_area))
return false;
} else if ((parameter =
string_after_prefix_ci(line, _T("ANTI-CLOCKWISE "))) != NULL) {
temp_area.Rotation = -1;
if (!ParseArcTNP(parameter, temp_area))
return false;
}
return true;
}
static bool
ParseLine(Airspaces &airspace_database, const TCHAR *line,
TempAirspaceType &temp_area)
{
const TCHAR *value;
// Only return expected lines
switch (line[0]) {
case _T('A'):
case _T('a'):
switch (line[1]) {
case _T('C'):
case _T('c'):
value = value_after_space(line + 2);
if (value == NULL)
break;
if (!temp_area.Waiting)
temp_area.AddPolygon(airspace_database);
temp_area.reset();
temp_area.Type = ParseType(value);
temp_area.Waiting = false;
break;
case _T('N'):
case _T('n'):
value = value_after_space(line + 2);
if (value != NULL)
temp_area.Name = value;
break;
case _T('R'):
case _T('r'):
value = value_after_space(line + 2);
if (value != NULL)
temp_area.Radio = value;
break;
case _T('L'):
case _T('l'):
value = value_after_space(line + 2);
if (value != NULL)
ReadAltitude(value, &temp_area.Base);
break;
case _T('H'):
case _T('h'):
value = value_after_space(line + 2);
if (value != NULL)
ReadAltitude(value, &temp_area.Top);
break;
default:
return true;
}
break;
case _T('D'):
case _T('d'):
switch (line[1]) {
case _T('A'):
case _T('a'):
CalculateSector(line, temp_area);
break;
case _T('B'):
case _T('b'):
CalculateArc(line, temp_area);
break;
case _T('C'):
case _T('c'):
temp_area.Radius = Units::ToSysUnit(fixed(_tcstod(&line[2], NULL)),
unNauticalMiles);
temp_area.AddCircle(airspace_database);
temp_area.reset();
break;
case _T('P'):
case _T('p'):
value = value_after_space(line + 2);
if (value == NULL)
break;
{
GeoPoint TempPoint;
if (!ReadCoords(value, TempPoint))
return false;
temp_area.points.push_back(TempPoint);
break;
}
default:
return true;
}
break;
case _T('V'):
case _T('v'):
// Need to set these while in count mode, or DB/DA will crash
if (string_after_prefix_ci(&line[2], _T("X="))) {
if (!ReadCoords(&line[4],temp_area.Center))
return false;
} else if (string_after_prefix_ci(&line[2], _T("D=-"))) {
temp_area.Rotation = -1;
} else if (string_after_prefix_ci(&line[2], _T("D=+"))) {
temp_area.Rotation = +1;
}
break;
}
return true;
}