issue doxygen#11590 Invalid LaTeX caused by unclosed markdown codeblocks. No warnings provided

Author: doxygen

src/docbookgen.cpp

@@ -308,8 +308,11 @@ DB_GEN_C1(*m_t)
 void DocbookCodeGenerator::endCodeFragment(const QCString &)
 {
 DB_GEN_C1(*m_t)
+  bool wasHidden = m_hide;
+  m_hide = false;
   //endCodeLine checks is there is still an open code line, if so closes it.
   endCodeLine();
+  m_hide = wasHidden;
 
   *m_t << "</programlisting>";
 }

src/htmlgen.cpp

@@ -842,6 +842,7 @@ void HtmlCodeGenerator::writeLineNumber(const QCString &ref,const QCString &file
   qsnprintf(lineNumber,maxLineNrStr,"%5d",l);
   qsnprintf(lineAnchor,maxLineNrStr,"l%05d",l);
 
+  //printf("writeLineNumber open=%d\n",m_lineOpen);
   if (!m_lineOpen)
   {
     *m_t << "<div class=\"line\">";
@@ -988,6 +989,7 @@ void HtmlCodeGenerator::writeTooltip(const QCString &id, const DocLinkInfo &docI
 
 void HtmlCodeGenerator::startCodeLine(int)
 {
+  //printf("startCodeLine open=%d\n",m_lineOpen);
   m_col=0;
   if (m_hide) return;
   if (!m_lineOpen)
@@ -999,6 +1001,7 @@ void HtmlCodeGenerator::startCodeLine(int)
 
 void HtmlCodeGenerator::endCodeLine()
 {
+  //printf("endCodeLine hide=%d open=%d\n",m_hide,m_lineOpen);
   if (m_hide) return;
   if (m_col == 0)
   {
@@ -1037,14 +1040,19 @@ void HtmlCodeGenerator::startCodeFragment(const QCString &)
 
 void HtmlCodeGenerator::endCodeFragment(const QCString &)
 {
+  //printf("endCodeFragment hide=%d open=%d\n",m_hide,m_lineOpen);
+  bool wasHidden = m_hide;
+  m_hide = false;
   //endCodeLine checks is there is still an open code line, if so closes it.
   endCodeLine();
+  m_hide = wasHidden;
 
   *m_t << "</div><!-- fragment -->";
 }
 
 void HtmlCodeGenerator::startFold(int lineNr,const QCString &startMarker,const QCString &endMarker)
 {
+  //printf("startFold open=%d\n",m_lineOpen);
   if (m_lineOpen) // if we have a hidden comment in a code fold, we need to end the line
   {
     *m_t << "</div>\n";
@@ -1065,6 +1073,7 @@ void HtmlCodeGenerator::startFold(int lineNr,const QCString &startMarker,const Q
 
 void HtmlCodeGenerator::_startOpenLine()
 {
+  //printf("_startOpenLine open=%d\n",m_lineOpen);
   *m_t << "<div class=\"line\">";
   bool wasHidden=m_hide;
   m_hide = false;
@@ -1079,6 +1088,7 @@ void HtmlCodeGenerator::_startOpenLine()
 
 void HtmlCodeGenerator::endFold()
 {
+  //printf("endFold open=%d\n",m_lineOpen);
   if (m_lineOpen) // if we have a hidden comment in a code fold, we need to end the line
   {
     *m_t << "</div>\n";

src/latexgen.cpp

@@ -308,7 +308,10 @@ void LatexCodeGenerator::startCodeFragment(const QCString &style)
 void LatexCodeGenerator::endCodeFragment(const QCString &style)
 {
   //endCodeLine checks is there is still an open code line, if so closes it.
+  bool wasHidden = m_hide;
+  m_hide = false;
   endCodeLine();
+  m_hide = wasHidden;
 
   *m_t << "\\end{" << style << "}\n";
 }

src/rtfgen.cpp

@@ -224,7 +224,10 @@ void RTFCodeGenerator::startCodeFragment(const QCString &)
 
 void RTFCodeGenerator::endCodeFragment(const QCString &)
 {
+  bool wasHidden = m_hide;
+  m_hide = false;
   endCodeLine();
+  m_hide = wasHidden;
 
   DBG_RTF(*m_t << "{\\comment (endCodeFragment) }\n")
   *m_t << "}\n";

src/scanner.l

@@ -7324,14 +7324,21 @@ NONLopt [^\n]*
                                           }
                                         }
 <DocCopyBlock>{CCS}|{CCE}|{CPPC}        {
-                                          if (yytext[1]=='*')
+                                          if (yytext[1]=='*') // start comment
                                           {
                                             yyextra->nestedComment++;
                                           }
-                                          else if (yytext[0]=='*' && yyextra->nestedComment>0)
+                                          else if (yytext[0]=='*' && yyextra->nestedComment>0) // end comment
                                           {
                                             yyextra->nestedComment--;
                                           }
+                                          else if (yytext[0]=='*' && yyextra->nestedComment==0) // end comment without start
+                                          {
+                                            warn(yyextra->fileName,yyextra->yyLineNr,
+                                                "Found end of C comment inside a '{}' block without matching start of the comment!"
+                                                " Maybe the end marker for the block is missing?",
+                                                yyextra->docBlockName);
+                                          }
                                           yyextra->docBlock << yytext;
                                         }
 <DocCopyBlock>\n                        { // newline