From 70297cec8122c0a0a7957664b60129e6809d57b6 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Sun, 31 May 2015 23:24:40 +0100
Subject: Add some experience to the flex, prefixes

---
 project2/files/configFlexLexer.cpp |  8 ++------
 project2/files/configFlexLexer.h   |  1 -
 project2/files/configuration.ll    | 12 ++++++++++++
 project2/files/optionsSource.cpp   |  1 +
 project2/sql/sql.ll                | 10 ++++++++--
 project2/sql/sqlFlexLexer.cpp      |  4 +++-
 project2/sql/sqlFlexLexer.h        |  4 +++-
 7 files changed, 29 insertions(+), 11 deletions(-)

diff --git a/project2/files/configFlexLexer.cpp b/project2/files/configFlexLexer.cpp
index fe44b0c..6d6f700 100644
--- a/project2/files/configFlexLexer.cpp
+++ b/project2/files/configFlexLexer.cpp
@@ -1,4 +1,5 @@
-#include "FlexLexer.h"
+#define yyFlexLexer configBaseFlexLexer
+#include <FlexLexer.h>
 #include "configFlexLexer.h"
 #include <stdexcept>
 
@@ -15,11 +16,6 @@ configFlexLexer::process() const
 	consume(domain.empty() ? option : domain + "." + option, platform, value, currentPlatform);
 }
 
-void
-configFlexLexer::LexerOutput(const char *, int)
-{
-}
-
 void
 configFlexLexer::LexerError(const char * msg)
 {
diff --git a/project2/files/configFlexLexer.h b/project2/files/configFlexLexer.h
index 177f11c..180c1fa 100644
--- a/project2/files/configFlexLexer.h
+++ b/project2/files/configFlexLexer.h
@@ -9,7 +9,6 @@ class configFlexLexer : public yyFlexLexer {
 		configFlexLexer(std::istream & in, const ConfigConsumer & consume, const Options::CurrentPlatform &);
 		int yylex();
 
-		void LexerOutput(const char *, int) override;
 		void LexerError(const char * msg) override;
 
 	private:
diff --git a/project2/files/configuration.ll b/project2/files/configuration.ll
index b3c8de7..aa04456 100644
--- a/project2/files/configuration.ll
+++ b/project2/files/configuration.ll
@@ -1,10 +1,15 @@
 %option batch
 %option c++
 %option noyywrap
+%option 8bit
+%option stack
+%option yylineno
 %option yyclass="configFlexLexer"
+%option prefix="configBase"
 
 %{
 #include "configFlexLexer.h"
+#pragma GCC diagnostic ignored "-Wsign-compare"
 %}
 
 element [a-zA-Z][a-zA-Z0-9_-]*
@@ -62,3 +67,10 @@ value [^ ][^\r\n]*
 	BEGIN(INITIAL);
 }
 
+<*>[ \t\r\n\f] {
+}
+
+<*>. {
+	throw std::runtime_error("Unexpected input");
+}
+
diff --git a/project2/files/optionsSource.cpp b/project2/files/optionsSource.cpp
index 2ebebdb..8e98df0 100644
--- a/project2/files/optionsSource.cpp
+++ b/project2/files/optionsSource.cpp
@@ -1,6 +1,7 @@
 #include <pch.hpp>
 #include <boost/filesystem/convenience.hpp>
 #include "optionsSource.h"
+#define yyFlexLexer configBaseFlexLexer
 #include <FlexLexer.h>
 #include "configFlexLexer.h"
 #include <boost/shared_ptr.hpp>
diff --git a/project2/sql/sql.ll b/project2/sql/sql.ll
index 604a53d..ab40642 100644
--- a/project2/sql/sql.ll
+++ b/project2/sql/sql.ll
@@ -1,13 +1,16 @@
 %option batch
 %option c++
 %option noyywrap
+%option 8bit
+%option stack
+%option yylineno
 %option yyclass="sqlFlexLexer"
+%option prefix="sqlBase"
 
 %{
 #include <stdexcept>
 #include "sqlFlexLexer.h"
-std::string comment;
-std::string statement;
+#pragma GCC diagnostic ignored "-Wsign-compare"
 %}
 
 space			[ \t\n\r\f]
@@ -115,3 +118,6 @@ p2mockscriptdir "$P2MOCKSCRIPTDIR"
 	statement += YYText();
 }
 
+<*>[ \t\r\n\f] {
+}
+
diff --git a/project2/sql/sqlFlexLexer.cpp b/project2/sql/sqlFlexLexer.cpp
index cbf2416..eaacd50 100644
--- a/project2/sql/sqlFlexLexer.cpp
+++ b/project2/sql/sqlFlexLexer.cpp
@@ -1,3 +1,4 @@
+#define yyFlexLexer sqlBaseFlexLexer
 #include <FlexLexer.h>
 #include "sqlFlexLexer.h"
 #include <logger.h>
@@ -10,8 +11,9 @@ sqlFlexLexer::sqlFlexLexer(const boost::filesystem::path & s, std::istream & f,
 }
 
 void
-sqlFlexLexer::LexerOutput(const char *, int)
+sqlFlexLexer::LexerError(const char * msg)
 {
+	throw std::runtime_error(msg);
 }
 
 void
diff --git a/project2/sql/sqlFlexLexer.h b/project2/sql/sqlFlexLexer.h
index fbaf799..55019e5 100644
--- a/project2/sql/sqlFlexLexer.h
+++ b/project2/sql/sqlFlexLexer.h
@@ -13,10 +13,12 @@ class sqlFlexLexer : public yyFlexLexer {
 		std::string MockScriptDir() const;
 
 	protected:
-		void LexerOutput(const char *, int) override;
+		void LexerError(const char *) override;
 
 	private:
 		DB::Connection * conn;
 		const boost::filesystem::path script;
+		std::string comment;
+		std::string statement;
 };
 
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