From 12ea0367d27b47280e8d768d04c8c332e9657491 Mon Sep 17 00:00:00 2001
From: albert-github <albert.tests@gmail.com>
Date: Tue, 27 Mar 2018 18:22:58 +0200
Subject: Making VHDL error messages more doxygen like

---
 src/vhdljjparser.cpp                  |  7 +++++++
 vhdlparser/VhdlParserErrorHandler.hpp | 27 +++++++++++++++++++++------
 vhdlparser/VhdlParserIF.cpp           |  2 ++
 3 files changed, 30 insertions(+), 6 deletions(-)

diff --git a/src/vhdljjparser.cpp b/src/vhdljjparser.cpp
index 953cd6b..34391b5 100644
--- a/src/vhdljjparser.cpp
+++ b/src/vhdljjparser.cpp
@@ -83,6 +83,7 @@ static struct
 static bool doxComment=FALSE; // doxygen comment ?
 static QCString strComment;
 static int iCodeLen;
+static const char *vhdlFileName = 0;
 
 bool  checkMultiComment(QCString& qcs,int line);
 QList<Entry>* getEntryAtLine(const Entry* ce,int line);
@@ -200,6 +201,7 @@ void VHDLLanguageScanner::parseInput(const char *fileName,const char *fileBuf,En
   VhdlParser::current=new Entry();
   VhdlParser::initEntry(VhdlParser::current);
   groupEnterFile(fileName,yyLineNr);
+  vhdlFileName = fileName;
   lineParse=new int[200]; // Dimitri: dangerous constant: should be bigger than largest token id in VhdlParserConstants.h
   VhdlParserIF::parseVhdlfile(fileBuf,inLine);
 
@@ -213,6 +215,7 @@ void VHDLLanguageScanner::parseInput(const char *fileName,const char *fileBuf,En
   yyFileName.resize(0);
   libUse.clear();
   VhdlDocGen::resetCodeVhdlParserState();
+  vhdlFileName = 0;
 }
 
 void VhdlParser::lineCount()
@@ -851,3 +854,7 @@ QList<Entry>* getEntryAtLine(const Entry* ce,int line)
   return &lineEntry;
 }
 
+const char *getVhdlFileName(void)
+{
+  return vhdlFileName;
+}
diff --git a/vhdlparser/VhdlParserErrorHandler.hpp b/vhdlparser/VhdlParserErrorHandler.hpp
index d98f029..9576ce6 100644
--- a/vhdlparser/VhdlParserErrorHandler.hpp
+++ b/vhdlparser/VhdlParserErrorHandler.hpp
@@ -7,32 +7,47 @@
 #include "VhdlParser.h"
 #include "ErrorHandler.h"
 #include "vhdlstring.h"
+#include "message.h"
+
+const char *getVhdlFileName(void);
 
 namespace vhdl { namespace parser {
 
-class VhdlErrorHandler: public ErrorHandler 
+class VhdlErrorHandler: public ErrorHandler
   {
-    virtual void handleUnexpectedToken(int expectedKind, JAVACC_STRING_TYPE expectedToken, Token *actual, VhdlParser *parser) 
+    virtual void handleUnexpectedToken(int expectedKind, JAVACC_STRING_TYPE expectedToken, Token *actual, VhdlParser *parser)
     {
-      fprintf(stderr,"\n\n syntax error at line: %d : %s\n", actual->beginLine,actual->image.data());
+      warn(getVhdlFileName(),actual->beginLine,"syntax error '%s'",actual->image.data());
       error_count++;
       throw std::exception();
     }
 
-    virtual void handleParseError(Token *last, Token *unexpected, JAVACC_SIMPLE_STRING production, VhdlParser *parser) 
+    virtual void handleParseError(Token *last, Token *unexpected, JAVACC_SIMPLE_STRING production, VhdlParser *parser)
     {
-      fprintf(stderr,"\n\n unexpected token at line: %d %s\n", last->beginLine,unexpected->image.data());
+      warn(getVhdlFileName(),last->beginLine,"unexpected token: '%s'", unexpected->image.data());
       error_count++;
       throw std::exception();
     }
 
     virtual void handleOtherError(JAVACC_STRING_TYPE message, VhdlParser *parser)
     {
-      fprintf(stderr, "\n\n unexpected error: %s\n", (char*)message.c_str());
+      warn(getVhdlFileName(), -1, "unexpected error: '%s'", (char*)message.c_str());
       error_count++;
       throw std::exception();
     }
   };
+
+class VhdlTokenManagerErrorHandler: public TokenManagerErrorHandler {
+    virtual void lexicalError(bool EOFSeen, int lexState, int errorLine, int errorColumn, JAVACC_STRING_TYPE errorAfter, JAVACC_CHAR_TYPE curChar, VhdlParserTokenManager* token_manager)
+    {
+      warn(getVhdlFileName(),errorLine,"Lexical error, Encountered: '%c' after: '%s'",curChar, (EOFSeen? "EOF" : (const char*)errorAfter.c_str()));
+    }
+
+    virtual void lexicalError(JAVACC_STRING_TYPE errorMessage, VhdlParserTokenManager* token_manager)
+    {
+      warn(getVhdlFileName(),-1,"Unknown error: '%s'", (char*)errorMessage.c_str());
+    }
+  };
 }
 }
 
diff --git a/vhdlparser/VhdlParserIF.cpp b/vhdlparser/VhdlParserIF.cpp
index f9f689b..3a6746f 100644
--- a/vhdlparser/VhdlParserIF.cpp
+++ b/vhdlparser/VhdlParserIF.cpp
@@ -14,6 +14,8 @@ void  VhdlParserIF::parseVhdlfile(const char* inputBuffer,bool inLine)
   JAVACC_STRING_TYPE s =inputBuffer;
   CharStream *stream = new CharStream(s.c_str(), (int)s.size(), 1, 1);
   VhdlParserTokenManager *tokenManager = new VhdlParserTokenManager(stream);
+  VhdlTokenManagerErrorHandler *myTokErr=new VhdlTokenManagerErrorHandler();
+  tokenManager->setErrorHandler(myTokErr);
   myParser=new VhdlParser(tokenManager);
   VhdlErrorHandler *myErr=new VhdlErrorHandler();
   myParser->setErrorHandler(myErr);
-- 
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