Corrects parsing problem in GUI with output of QRE tracing.

The parsing of the command-line output of the QRE tracers was
not handling correctly the final (approximate Nash) profile.
This corrects this problem.

Closes #172.

Author: tturocy

ChangeLog

@@ -1,5 +1,12 @@
 # Changelog
 
+## [16.3.2] - unreleased
+
+### Fixed
+- Parsing of output of `gambit-logit` in the graphical interface did not handle the
+  terminal Nash profile correctly.  (#172)
+
+
 ## [16.3.1] - 2025-08-18
 
 ### Fixed

src/gui/dlefglogit.cc

@@ -174,15 +174,14 @@ void gbtLogitBehavList::AddProfile(const wxString &p_text, bool p_forceShow)
   auto profile = std::make_shared<MixedBehaviorProfile<double>>(m_doc->GetGame());
 
   wxStringTokenizer tok(p_text, wxT(","));
-
-  m_lambdas.push_back((double)Gambit::lexical_cast<Gambit::Rational>(
-      std::string((const char *)tok.GetNextToken().mb_str())));
-
+  const auto next = tok.GetNextToken();
+  if (next == "NE") {
+    return;
+  }
+  m_lambdas.push_back(std::stod(next.ToStdString()));
   for (size_t i = 1; i <= profile->BehaviorProfileLength(); i++) {
-    (*profile)[i] = Gambit::lexical_cast<Gambit::Rational>(
-        std::string((const char *)tok.GetNextToken().mb_str()));
+    (*profile)[i] = std::stod(tok.GetNextToken().ToStdString());
   }
-
   m_profiles.push_back(profile);
   if (p_forceShow || m_profiles.size() - GetNumberRows() > 20) {
     AppendRows(m_profiles.size() - GetNumberRows());

src/gui/dlnfglogit.cc

@@ -74,11 +74,14 @@ void LogitMixedBranch::AddProfile(const wxString &p_text)
 
   wxStringTokenizer tok(p_text, wxT(","));
 
-  m_lambdas.push_back(
-      (double)lexical_cast<Rational>(std::string((const char *)tok.GetNextToken().mb_str())));
+  const auto next = tok.GetNextToken();
+  if (next == "NE") {
+    return;
+  }
+  m_lambdas.push_back(std::stod(next.ToStdString()));
 
   for (size_t i = 1; i <= profile->MixedProfileLength(); i++) {
-    (*profile)[i] = lexical_cast<Rational>(std::string((const char *)tok.GetNextToken().mb_str()));
+    (*profile)[i] = std::stod(tok.GetNextToken().ToStdString());
   }
 
   m_profiles.push_back(profile);