33 files changed, 638 insertions, 55 deletions

diff --git a/build.conf b/build.conf
index 640fbff..8f06532 100644
--- a/build.conf
+++ b/build.conf
@@ -4,7 +4,8 @@ default action: check "build"
 "clean" action: clean "build"
 "rebuild" action: clean "build", check "build"
 
-set "CXXFLAGS" += "-ggdb"
+set "CXXFLAGS" += "-ggdb -Ilibbu++/src"
+set "LDFLAGS" += "-Llibbu++ -lbu++ -ldl"
 
 "build":
         rule "exe",
@@ -15,13 +16,13 @@ set "CXXFLAGS" += "-ggdb"
 
 rule "exe":
         matches regexp("(.*)\\.o$"),
-        input filter toString(),
-        perform command("g++ {LDFLAGS} -o {target} {match}")
+        aggregate toString(" "),
+        perform command("g++ -o {target} {match} {LDFLAGS}")
 
 rule "cpp":
-        matches regexp("(.*)\\.cpp$"),
+        matches regexp("(.*)\\.(cpp|c)$"),
         produces "{re:1}.o",
-        requires commandToList("g++ -M {match}", "make"),
+        requires commandToList("g++ -M {CXXFLAGS} {match}", "make"),
         perform command("g++ {CXXFLAGS} -c -o {target} {match}")
 
 rule "bison":
diff --git a/src/build.cpp b/src/build.cpp
index 255cbd3..5c0b721 100644
--- a/src/build.cpp
+++ b/src/build.cpp
@@ -1,10 +1,14 @@
 #include "build.h"
+#include "function.h"
+#include "viewerfactory.h"
 
 subExceptionDef( BuildException );
 
 Build::Build() :
-        pStrProc( NULL )
+        pStrProc( NULL ),
+        pView( NULL )
 {
+        pView = ViewerFactory::getInstance().instantiate("plain");
 }
 
 Build::~Build()
@@ -46,6 +50,7 @@ void Build::execAction( const std::string &sWhat )
                                 sWhat.c_str()
                                 );
                 Target *pTarget = mTarget[pAct->getWhat()];
+                pView->beginCommand( pAct->getAct(), pAct->getWhat(), 0 );
                 switch( pAct->getAct() )
                 {
                         case Action::actCheck:
@@ -56,6 +61,7 @@ void Build::execAction( const std::string &sWhat )
                                 pTarget->clean( *this );
                                 break;
                 }
+                pView->endCommand();
         }
 
         return;
@@ -234,3 +240,34 @@ void Build::debugDump()
         }
 }
 
+RuleList Build::findChainRules( Rule *pHead )
+{
+        RuleList lOut;
+        FunctionList &lMatches = pHead->getMatchesList();
+
+        for( RuleMap::iterator i = mRule.begin(); i != mRule.end(); i++ )
+        {
+                if( (*i).second == pHead )
+                        continue;
+
+                for( FunctionList::iterator j = lMatches.begin();
+                         j != lMatches.end(); j++ )
+                {
+                        StringList lTmp;
+                        (*j)->execute( NULL, (*i).second->getProducesList(), lTmp );
+                        if( !lTmp.empty() )
+                        {
+                                lOut.push_back( (*i).second );
+                                break;
+                        }
+                }
+        }
+
+        return lOut;
+}
+
+StringList &Build::getRequires( std::string sName )
+{
+        return mRequires[sName];
+}
+
diff --git a/src/build.h b/src/build.h
index 080304b..31c8bde 100644
--- a/src/build.h
+++ b/src/build.h
@@ -14,6 +14,15 @@
 
 subExceptionDecl( BuildException );
 typedef std::map<std::string, std::string> VarMap;
+typedef std::map<std::string, Target *> TargetMap;
+typedef std::list<std::string> StringList;
+typedef std::map<std::string, StringList> ReqMap;
+typedef std::map<std::string, VarMap> ContextMap;
+typedef std::map<std::string, Rule *> RuleMap;
+typedef std::list<Rule *> RuleList;
+typedef std::map<std::string, Action *> ActionMap;
+
+class Viewer;
 
 class Build
 {
@@ -44,15 +53,15 @@ public:
 
         void setStringProc( StringProc *pStrProc );
         std::string replVars( const std::string &sSrc, const std::string &sCont, VarMap *mExtra );
+        RuleList findChainRules( Rule *pHead );
+        StringList &getRequires( std::string sName );
 
-private:
-        typedef std::map<std::string, Target *> TargetMap;
-        typedef std::list<std::string> StringList;
-        typedef std::map<std::string, StringList> ReqMap;
-        typedef std::map<std::string, VarMap> ContextMap;
-        typedef std::map<std::string, Rule *> RuleMap;
-        typedef std::map<std::string, Action *> ActionMap;
+        Viewer *getView()
+        {
+                return pView;
+        }
 
+private:
         TargetMap mTarget;
         ReqMap mRequires;
         VarMap mVars;
@@ -60,6 +69,7 @@ private:
         RuleMap mRule;
         ActionMap mAction;
         StringProc *pStrProc;
+        Viewer *pView;
 
         //std::map<std::string, Rule *> mRule;
         //Action *pActDefault;
diff --git a/src/build.l b/src/build.l
index 41abaf4..49275c8 100644
--- a/src/build.l
+++ b/src/build.l
@@ -34,6 +34,7 @@ std::string strbuf;
 "input"                                                         return TOK_INPUT;
 "filter"                                                        return TOK_FILTER;
 "prefix"                                                        return TOK_PREFIX;
+"aggregate"                                                     return TOK_AGGREGATE;
 
 \n+                                                                     {
         yylloc->last_line += yyleng;
diff --git a/src/build.y b/src/build.y
index bb30d84..0853bd9 100644
--- a/src/build.y
+++ b/src/build.y
@@ -39,6 +39,7 @@ void yyerror( YYLTYPE *locp, BuildParser &bld, char const *msg );
 %token TOK_MATCHES                              "matches"
 %token TOK_PERFORM                              "perform"
 %token TOK_PRODUCES                             "produces"
+%token TOK_AGGREGATE                    "aggregate"
 
 %token ',' ':' '=' '(' ')'
 
@@ -86,6 +87,10 @@ rulecmd: TOK_MATCHES func
            {
                    bld.addRulePerform();
            }
+           | TOK_AGGREGATE func
+           {
+                   bld.setRuleAggregate();
+           }
            ;
 
 // Action interpretation
diff --git a/src/buildparser.cpp b/src/buildparser.cpp
index f855990..6c3337f 100644
--- a/src/buildparser.cpp
+++ b/src/buildparser.cpp
@@ -121,7 +121,7 @@ void BuildParser::filterList()
 {
         StringList lTmp2;
         StringList lIn = buildToStringList( lTmp, StringList() );
-        pTmpFunc->execute( lIn, lTmp2 );
+        pTmpFunc->execute( NULL, lIn, lTmp2 );
         lTmp.clear();
         for( StringList::iterator i = lTmp2.begin(); i != lTmp2.end(); i++ )
         {
@@ -137,7 +137,7 @@ StringList BuildParser::buildToStringList( const BuildList &lSrc, const StringLi
         {
                 if( (*i).second )
                 {
-                        (*i).second->execute( lIn, lOut );
+                        (*i).second->execute( NULL, lIn, lOut );
                 }
                 else
                 {
@@ -155,6 +155,7 @@ void BuildParser::addRule( const char *sName )
 {
         lRuleTmp.push_back( RuleInfo() );
         lRuleTmp.back().sName = sName;
+        lRuleTmp.back().pAggregate = NULL;
 }
 
 void BuildParser::addRuleMatches()
@@ -188,6 +189,11 @@ void BuildParser::addRulePerform()
         lRuleTmp.back().lPerform.push_back( pTmpPerform );
 }
 
+void BuildParser::setRuleAggregate()
+{
+        lRuleTmp.back().pAggregate = pTmpFunc;
+}
+
 //
 // Perform functions
 //
@@ -431,14 +437,35 @@ Build *BuildParser::genBuild()
                         pRule->getPerformList().push_back( *j );
                 }
 
-                /*StringList lITmp = buildToStringList(
-                        (*i).lProduces, StringList()
-                        );
+                for( BuildList::iterator j = (*i).lProduces.begin();
+                         j != (*i).lProduces.end(); j++ )
+                {
+                        if( (*j).second )
+                        {
+                                throw BuildException(
+                                        "You cannot have functions in produces lists (rule %s).",
+                                        (*i).sName.c_str() );
+                        }
+                        pRule->getProducesList().push_back( (*j).first );
+                }
 
-                for( StringList::iterator i = lITmp.begin(); i != lITmp.end(); i++ )
+                if( (*i).pAggregate )
                 {
-                        get
-                }*/
+                        pRule->setAggregate( (*i).pAggregate );
+                }
+
+                for( BuildList::iterator j = (*i).lRequires.begin();
+                         j != (*i).lRequires.end(); j++ )
+                {
+                        if( (*j).second )
+                        {
+                                pRule->getReqFuncList().push_back( (*j).second );
+                        }
+                        else
+                        {
+                                pRule->getReqStrList().push_back( (*j).first );
+                        }
+                }
 
                 bld->addRule( pRule );
         }
diff --git a/src/buildparser.h b/src/buildparser.h
index 2e1924c..dda2d80 100644
--- a/src/buildparser.h
+++ b/src/buildparser.h
@@ -127,6 +127,7 @@ public: // Rules functions
         void addRuleRequires();
         void addRuleInputFilter();
         void addRulePerform();
+        void setRuleAggregate();
 
 private: // Rule variables
         class RuleInfo
@@ -138,6 +139,7 @@ private: // Rule variables
                 BuildList lRequires;
                 FunctionList lFilter;
                 PerformList lPerform;
+                Function *pAggregate;
         };
 
         typedef std::list<RuleInfo> RuleTmpList;
diff --git a/src/function.cpp b/src/function.cpp
index e7554e1..8debbe9 100644
--- a/src/function.cpp
+++ b/src/function.cpp
@@ -13,3 +13,13 @@ void Function::addParam( const char *str )
         lParams.push_back( str );
 }
 
+void Function::copyData( Function *pSrc, Build &bld, const std::string &cont, VarMap *mExtra )
+{
+        lParams.clear();
+        for( std::list<std::string>::iterator i = pSrc->lParams.begin();
+                 i != pSrc->lParams.end(); i++ )
+        {
+                lParams.push_back( bld.replVars( *i, cont, mExtra ) );
+        }
+}
+
diff --git a/src/function.h b/src/function.h
index 73dcb01..7035d2f 100644
--- a/src/function.h
+++ b/src/function.h
@@ -11,7 +11,9 @@ public:
         virtual ~Function();
 
         void addParam( const char *str );
-        virtual void execute( const StringList &lInput, StringList &lOutput )=0;
+        virtual void execute( Build *bld, const StringList &lInput, StringList &lOutput )=0;
+        virtual Function *duplicate( Build &bld, const std::string &cont, VarMap *mExtra ) = 0;
+        void copyData( Function *pSrc, Build &bld, const std::string &cont, VarMap *mExtra );
 
 protected:
         StringList lParams;
diff --git a/src/functioncommandtolist.cpp b/src/functioncommandtolist.cpp
index 46762b5..708db5b 100644
--- a/src/functioncommandtolist.cpp
+++ b/src/functioncommandtolist.cpp
@@ -11,7 +11,58 @@ FunctionCommandToList::~FunctionCommandToList()
 {
 }
 
-void FunctionCommandToList::execute( const StringList &lInput, StringList &lOutput )
+void FunctionCommandToList::execute( Build *bld, const StringList &lInput, StringList &lOutput )
 {
+        //rView.beginExtraRequiresCheck( s.c_str() );
+        //rView.executeCmd( s.c_str() );
+        FILE *fcmd = popen( lParams.front().c_str(), "r" );
+        std::string rhs;
+        bool bHeader = true;
+        for(;;)
+        {
+                if( feof( fcmd ) )
+                        break;
+                int cc = fgetc( fcmd );
+                if( cc == EOF )
+                        break;
+                unsigned char c = cc;
+                if( bHeader )
+                {
+                        if( c == ':' )
+                                bHeader = false;
+                }
+                else
+                {
+                        if( c == ' ' || c == '\t' )
+                        {
+                                if( rhs != "" )
+                                {
+                                        lOutput.push_back( rhs );
+                                        rhs = "";
+                                }
+                        }
+                        else
+                        {
+                                if( c == '\\' )
+                                        c = fgetc( fcmd );
+                                if( c != '\n' )
+                                        rhs += c;
+                        }
+                }
+        }
+        if( rhs != "" )
+        {
+                lOutput.push_back( rhs );
+                rhs = "";
+        }
+        pclose( fcmd );
+        //rView.endExtraRequiresCheck();
+}
+
+Function *FunctionCommandToList::duplicate( Build &bld, const std::string &cont, VarMap *mExtra )
+{
+        Function *pRet = new FunctionCommandToList();
+        pRet->copyData( this, bld, cont, mExtra );
+        return pRet;
 }
 
diff --git a/src/functioncommandtolist.h b/src/functioncommandtolist.h
index 176e40f..c74ce29 100644
--- a/src/functioncommandtolist.h
+++ b/src/functioncommandtolist.h
@@ -11,7 +11,8 @@ public:
         FunctionCommandToList();
         virtual ~FunctionCommandToList();
         
-        virtual void execute( const StringList &lInput, StringList &lOutput );
+        virtual void execute( Build *bld, const StringList &lInput, StringList &lOutput );
+        virtual Function *duplicate( Build &bld, const std::string &cont, VarMap *mExtra );
 
 private:
 
diff --git a/src/functiondirectoriesin.cpp b/src/functiondirectoriesin.cpp
index 9452489..0e90dbc 100644
--- a/src/functiondirectoriesin.cpp
+++ b/src/functiondirectoriesin.cpp
@@ -11,7 +11,14 @@ FunctionDirectoriesIn::~FunctionDirectoriesIn()
 {
 }
 
-void FunctionDirectoriesIn::execute( const StringList &lInput, StringList &lOutput )
+void FunctionDirectoriesIn::execute( Build *bld, const StringList &lInput, StringList &lOutput )
 {
 }
 
+Function *FunctionDirectoriesIn::duplicate( Build &bld, const std::string &cont, VarMap *mExtra )
+{
+        Function *pRet = new FunctionDirectoriesIn();
+        pRet->copyData( this, bld, cont, mExtra );
+        return pRet;
+}
+
diff --git a/src/functiondirectoriesin.h b/src/functiondirectoriesin.h
index ba1b2e4..c387577 100644
--- a/src/functiondirectoriesin.h
+++ b/src/functiondirectoriesin.h
@@ -11,7 +11,8 @@ public:
         FunctionDirectoriesIn();
         virtual ~FunctionDirectoriesIn();
         
-        virtual void execute( const StringList &lInput, StringList &lOutput );
+        virtual void execute( Build *bld, const StringList &lInput, StringList &lOutput );
+        virtual Function *duplicate( Build &bld, const std::string &cont, VarMap *mExtra );
 
 private:
 
diff --git a/src/functionfilesin.cpp b/src/functionfilesin.cpp
index 3e1233a..e3d8e92 100644
--- a/src/functionfilesin.cpp
+++ b/src/functionfilesin.cpp
@@ -14,7 +14,7 @@ FunctionFilesIn::~FunctionFilesIn()
 {
 }
 
-void FunctionFilesIn::execute( const StringList &lInput, StringList &lOutput )
+void FunctionFilesIn::execute( Build *bld, const StringList &lInput, StringList &lOutput )
 {
         DIR *d = opendir( lParams.front().c_str() );
         if( d == NULL )
@@ -38,3 +38,10 @@ void FunctionFilesIn::execute( const StringList &lInput, StringList &lOutput )
         closedir( d );
 }
 
+Function *FunctionFilesIn::duplicate( Build &bld, const std::string &cont, VarMap *mExtra )
+{
+        Function *pRet = new FunctionFilesIn();
+        pRet->copyData( this, bld, cont, mExtra );
+        return pRet;
+}
+
diff --git a/src/functionfilesin.h b/src/functionfilesin.h
index b660301..dc504b9 100644
--- a/src/functionfilesin.h
+++ b/src/functionfilesin.h
@@ -11,7 +11,8 @@ public:
         FunctionFilesIn();
         virtual ~FunctionFilesIn();
         
-        virtual void execute( const StringList &lInput, StringList &lOutput );
+        virtual void execute( Build *bld, const StringList &lInput, StringList &lOutput );
+        virtual Function *duplicate( Build &bld, const std::string &cont, VarMap *mExtra );
 
 private:
 
diff --git a/src/functionregexp.cpp b/src/functionregexp.cpp
index d1491e6..57a1725 100644
--- a/src/functionregexp.cpp
+++ b/src/functionregexp.cpp
@@ -12,7 +12,7 @@ FunctionRegexp::~FunctionRegexp()
 {
 }
 
-void FunctionRegexp::execute( const StringList &lInput, StringList &lOutput )
+void FunctionRegexp::execute( Build *bld, const StringList &lInput, StringList &lOutput )
 {
         if( lParams.size() == 1 )
         {
@@ -24,6 +24,16 @@ void FunctionRegexp::execute( const StringList &lInput, StringList &lOutput )
                         if( re.execute( (*i).c_str() ) )
                         {
                                 lOutput.push_back( *i );
+                                if( bld )
+                                {
+                                        int jmax = re.getNumSubStrings();
+                                        for( int j = 0; j < jmax; j++ )
+                                        {
+                                                char buf[30];
+                                                sprintf( buf, "re:%d", j );
+                                                bld->set( *i, buf, re.getSubString( j ) );
+                                        }
+                                }
                         }
                 }
         }
@@ -32,3 +42,10 @@ void FunctionRegexp::execute( const StringList &lInput, StringList &lOutput )
         }
 }
 
+Function *FunctionRegexp::duplicate( Build &bld, const std::string &cont, VarMap *mExtra )
+{
+        Function *pRet = new FunctionRegexp();
+        pRet->copyData( this, bld, cont, mExtra );
+        return pRet;
+}
+
diff --git a/src/functionregexp.h b/src/functionregexp.h
index 9fa2eb4..1dfd91e 100644
--- a/src/functionregexp.h
+++ b/src/functionregexp.h
@@ -11,7 +11,8 @@ public:
         FunctionRegexp();
         virtual ~FunctionRegexp();
         
-        virtual void execute( const StringList &lInput, StringList &lOutput );
+        virtual void execute( Build *bld, const StringList &lInput, StringList &lOutput );
+        virtual Function *duplicate( Build &bld, const std::string &cont, VarMap *mExtra );
 
 private:
 
diff --git a/src/functiontostring.cpp b/src/functiontostring.cpp
index a76705a..0a7bb48 100644
--- a/src/functiontostring.cpp
+++ b/src/functiontostring.cpp
@@ -11,7 +11,23 @@ FunctionToString::~FunctionToString()
 {
 }
 
-void FunctionToString::execute( const StringList &lInput, StringList &lOutput )
+void FunctionToString::execute( Build *bld, const StringList &lInput, StringList &lOutput )
 {
+        std::string sOut;
+
+        for( StringList::const_iterator i = lInput.begin(); i != lInput.end(); i++ )
+        {
+                if( i != lInput.begin() ) sOut += " ";
+                sOut += *i;
+        }
+
+        lOutput.push_back( sOut );
+}
+
+Function *FunctionToString::duplicate( Build &bld, const std::string &cont, VarMap *mExtra )
+{
+        Function *pRet = new FunctionToString();
+        pRet->copyData( this, bld, cont, mExtra );
+        return pRet;
 }
 
diff --git a/src/functiontostring.h b/src/functiontostring.h
index 5e64256..4779712 100644
--- a/src/functiontostring.h
+++ b/src/functiontostring.h
@@ -11,7 +11,8 @@ public:
         FunctionToString();
         virtual ~FunctionToString();
         
-        virtual void execute( const StringList &lInput, StringList &lOutput );
+        virtual void execute( Build *bld, const StringList &lInput, StringList &lOutput );
+        virtual Function *duplicate( Build &bld, const std::string &cont, VarMap *mExtra );
 
 private:
 
diff --git a/src/main.cpp b/src/main.cpp
index 02cb9d6..9106a74 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -91,8 +91,6 @@ int main( int argc, char *argv[] )
         //      printf("\n\n----------\nDebug dump\n----------\n");
         //      bld.debugDump();
         //}
-        //      printf("\n\n----------\nDebug dump\n----------\n");
-        //      pBuild->debugDump();
         //else
         {
                 if( prm.sAction > 0 )
@@ -100,6 +98,8 @@ int main( int argc, char *argv[] )
                 else
                         pBuild->execAction("");
         }
+        //printf("\n\n----------\nDebug dump\n----------\n");
+        //pBuild->debugDump();
 
         delete pBuild;
 }
diff --git a/src/perform.h b/src/perform.h
index 93c8b9a..ea8d5e3 100644
--- a/src/perform.h
+++ b/src/perform.h
@@ -17,7 +17,8 @@ public:
         virtual ~Perform();
 
         void addParam( const char *sParam );
-        virtual Perform *duplicate( Build &bld, const std::string &cont ) = 0;
+        virtual Perform *duplicate( Build &bld, const std::string &cont, VarMap *mExtra ) = 0;
+        virtual void execute( Build &bld ) = 0;
         void copyData( Perform *pSrc, Build &bld, const std::string &cont, VarMap *mExtra );
         std::string getTarget()
         {
@@ -28,9 +29,26 @@ public:
                 this->sTarget = sTarget;
         }
 
-private:
+        std::list<class Function *> &getReqFuncs()
+        {
+                return lReqFuncs;
+        }
+
+        void setRule( const std::string &sRule )
+        {
+                this->sRule = sRule;
+        }
+
+        std::string &getRule()
+        {
+                return sRule;
+        }
+
+protected:
         std::list<std::string> lParam;
         std::string sTarget;
+        std::string sRule;
+        std::list<class Function *> lReqFuncs;
 };
 
 #endif
diff --git a/src/performcommand.cpp b/src/performcommand.cpp
index 6963022..f6da4ac 100644
--- a/src/performcommand.cpp
+++ b/src/performcommand.cpp
@@ -11,10 +11,15 @@ PerformCommand::~PerformCommand()
 {
 }
 
-Perform *PerformCommand::duplicate( Build &bld, const std::string &cont )
+Perform *PerformCommand::duplicate( Build &bld, const std::string &cont, VarMap *mExtra )
 {
         Perform *pRet = new PerformCommand();
-        pRet->copyData( this, bld, cont, NULL );
+        pRet->copyData( this, bld, cont, mExtra );
         return pRet;
 }
 
+void PerformCommand::execute( Build &bld )
+{
+        system( lParam.front().c_str() );
+}
+
diff --git a/src/performcommand.h b/src/performcommand.h
index b6f7f11..d128845 100644
--- a/src/performcommand.h
+++ b/src/performcommand.h
@@ -11,7 +11,8 @@ public:
         PerformCommand();
         virtual ~PerformCommand();
 
-        virtual Perform *duplicate( Build &bld, const std::string &cont );
+        virtual Perform *duplicate( Build &bld, const std::string &cont, VarMap *mExtra );
+        virtual void execute( Build &bld );
 
 private:
 
diff --git a/src/rule.cpp b/src/rule.cpp
index 4919eef..c5ed1c2 100644
--- a/src/rule.cpp
+++ b/src/rule.cpp
@@ -1,6 +1,10 @@
 #include "rule.h"
+#include "build.h"
+#include "function.h"
+#include "perform.h"
 
-Rule::Rule()
+Rule::Rule() :
+        pAggregate( NULL )
 {
 }
 
@@ -12,6 +16,112 @@ StringList Rule::execute( Build &bld, StringList &lInput, PerformList &lPerf )
 {
         StringList lOutput;
 
+        RuleList rl = bld.findChainRules( this );
+
+        for( RuleList::iterator i = rl.begin(); i != rl.end(); i++ )
+        {
+                StringList tmp = (*i)->execute( bld, lInput, lPerf );
+                lOutput.insert( lOutput.end(), tmp.begin(), tmp.end() );
+        }
+
+        StringList lMine;
+        for( FunctionList::iterator i = lMatches.begin(); i != lMatches.end(); i++ )
+        {
+                (*i)->execute( &bld, lInput, lMine );
+        }
+
+        StringList lTmp;
+        for( FunctionList::iterator i = lFilter.begin(); i != lFilter.end(); i++ )
+        {
+                (*i)->execute( &bld, lMine, lTmp );
+                lMine.swap( lTmp );
+                lTmp.clear();
+        }
+
+        bool bHasProduces = true;
+        if( lProduces.empty() )
+        {
+                bHasProduces = false;
+                lProduces.push_back( sTarget );
+        }
+
+        StringList lNewOut;
+        if( pAggregate )
+        {
+                VarMap mTmp;
+                std::string target = lProduces.front();//, lProduces.front(), NULL ).c_str();
+                mTmp["target"] = target;
+                lNewOut.push_back( target );
+
+                for( StringList::iterator i = lMine.begin(); i != lMine.end(); i++ )
+                {
+                        bld.addRequires( target, (*i) );
+                }
+                for( StringList::iterator i = lReqStrs.begin();
+                         i != lReqStrs.end(); i++ )
+                {
+                        bld.addRequires( target, (*i) );
+                }
+
+                StringList lTmp;
+                pAggregate->execute( &bld, lMine, lTmp );
+                mTmp["match"] = lTmp.front();
+
+                for( PerformList::iterator k = lPerform.begin();
+                         k != lPerform.end(); k++ )
+                {
+                        Perform *p = (*k)->duplicate( bld, target, &mTmp );
+                        p->setTarget( target );
+                        p->setRule( sName );
+                        //p->setReqFuncs( &lReqFuncs );
+                        lPerf.push_back( p );
+                }
+        }
+        else
+        {
+                for( StringList::iterator i = lMine.begin(); i != lMine.end(); i++ )
+                {
+                        for( StringList::iterator j = lProduces.begin();
+                                 j != lProduces.end(); j++ )
+                        {
+                                VarMap mTmp;
+                                std::string target = bld.replVars( (*j), (*i), NULL );
+                                mTmp["target"] = target;
+                                lNewOut.push_back( target );
+                                mTmp["match"] = (*i);
+                                bld.addRequires( target, (*i) );
+                                for( StringList::iterator k = lReqStrs.begin();
+                                         k != lReqStrs.end(); k++ )
+                                {
+                                        bld.addRequires( target, (*k) );
+                                }
+                                for( PerformList::iterator k = lPerform.begin();
+                                         k != lPerform.end(); k++ )
+                                {
+                                        Perform *p = (*k)->duplicate( bld, (*i), &mTmp );
+                                        p->setTarget( target );
+                                        p->setRule( sName );
+                                        for( FunctionList::iterator f = lReqFuncs.begin();
+                                                 f != lReqFuncs.end(); f++ )
+                                        {
+                                                p->getReqFuncs().push_back(
+                                                        (*f)->duplicate( bld, (*i), &mTmp )
+                                                        );
+                                        }
+                                        lPerf.push_back( p );
+                                }
+                        }
+                }
+        }
+
+        lInput.insert( lInput.end(), lNewOut.begin(), lNewOut.end() );
+        lOutput.insert( lOutput.end(), lNewOut.begin(), lNewOut.end() );
+
+        if( bHasProduces == false )
+        {
+                lProduces.clear();
+        }
+
         return lOutput;
 }
 
diff --git a/src/rule.h b/src/rule.h
index 5b2bbfd..98c95a6 100644
--- a/src/rule.h
+++ b/src/rule.h
@@ -21,6 +21,11 @@ public:
 
         StringList execute( Build &bld, StringList &lInput, PerformList &lPerf );
 
+        void setTarget( const std::string &sTarget )
+        {
+                this->sTarget = sTarget;
+        }
+
         std::string getName()
         {
                 return sName;
@@ -46,11 +51,36 @@ public:
                 return lMatches;
         }
 
+        StringList &getProducesList()
+        {
+                return lProduces;
+        }
+
+        void setAggregate( Function *pAggregate )
+        {
+                this->pAggregate = pAggregate;
+        }
+
+        StringList &getReqStrList()
+        {
+                return lReqStrs;
+        }
+
+        FunctionList &getReqFuncList()
+        {
+                return lReqFuncs;
+        }
+
 private:
         std::string sName;
         FunctionList lMatches;
         FunctionList lFilter;
         PerformList lPerform;
+        StringList lProduces;
+        std::string sTarget;
+        Function *pAggregate;
+        StringList lReqStrs;
+        FunctionList lReqFuncs;
 };
 
 #endif
diff --git a/src/targetfile.cpp b/src/targetfile.cpp
index dc9e597..0299f9d 100644
--- a/src/targetfile.cpp
+++ b/src/targetfile.cpp
@@ -2,6 +2,9 @@
 #include "plugger.h"
 #include "rule.h"
 #include "build.h"
+#include "perform.h"
+#include "function.h"
+#include "viewer.h"
 
 PluginInterface2(file, TargetFile, Target, "Mike Buland", 0, 1 );
 
@@ -15,26 +18,43 @@ TargetFile::~TargetFile()
 
 void TargetFile::check( Build &bld )
 {
-        printf("Target file checking:  %s\n", getName().c_str() );
-
         Rule *pRule = bld.getRule( getRule() );
         PerformList lPerf;
+        pRule->setTarget( getName() );
         StringList lFinal = pRule->execute( bld, getInput(), lPerf );
 
-        printf("Input:  ");
-        for( StringList::iterator i = getInput().begin();
-                 i != getInput().end(); i++ )
-        {
-                if( i != getInput().begin() ) printf(", ");
-                printf("%s", (*i).c_str() );
-        }
-        printf("\nFinal:  ");
-        for( StringList::iterator i = lFinal.begin(); i != lFinal.end(); i++ )
+        for( PerformList::iterator i = lPerf.begin(); i != lPerf.end(); i++ )
         {
-                if( i != lFinal.begin() ) printf(", ");
-                printf("%s", (*i).c_str() );
+                time_t tTarget = getTime( bld, (*i)->getTarget() );
+                StringList &reqs = bld.getRequires( (*i)->getTarget() );
+                FunctionList::iterator f = (*i)->getReqFuncs().begin();
+                bool bBuilt = false;
+aastrt: for( StringList::iterator j = reqs.begin(); j != reqs.end(); j++ )
+                {
+                        if( getTime( bld, *j ) > tTarget )
+                        {
+                                bld.getView()->beginPerform( *i );
+                                (*i)->execute( bld );
+                                bld.getView()->endPerform();
+                                updateTime( (*i)->getTarget() );
+                                bBuilt = true;
+                                break;
+                        }
+                }
+                if( bBuilt == true )
+                        continue;
+
+                if( f != (*i)->getReqFuncs().end() )
+                {
+                        StringList lTmpIn;
+                        lTmpIn.push_back( (*i)->getTarget() );
+                        bld.getView()->beginRequiresCheck( false, (*i)->getTarget() );
+                        (*f)->execute( &bld, lTmpIn, reqs );
+                        bld.getView()->endRequiresCheck();
+                        f++;
+                        goto aastrt;
+                }
         }
-        printf("\n");
 }
 
 void TargetFile::clean( Build &bld )
@@ -42,3 +62,35 @@ void TargetFile::clean( Build &bld )
         printf("Target file cleaning:  %s\n", getName().c_str() );
 }
 
+time_t TargetFile::getTime( Build &bld, std::string str )
+{
+        std::map<std::string, time_t>::iterator i = mTimes.find( str );
+        if( i != mTimes.end() )
+        {
+                //nCache++;
+                //bld.view().beginRequiresCheck( true, str.c_str() );
+                //bld.view().endRequiresCheck();
+                return (*i).second;
+        }
+
+        //bld.view().beginRequiresCheck( false, str.c_str() );
+        struct stat st;
+        stat( str.c_str(), &st );
+
+        mTimes[str] = st.st_mtime;
+
+        //nNew++;
+
+        //bld.view().endRequiresCheck();
+
+        return st.st_mtime;
+}
+
+void TargetFile::updateTime( std::string str )
+{
+        struct stat st;
+        stat( str.c_str(), &st );
+
+        mTimes[str] = st.st_mtime;
+}
+
diff --git a/src/targetfile.h b/src/targetfile.h
index 37e6770..368e252 100644
--- a/src/targetfile.h
+++ b/src/targetfile.h
@@ -2,6 +2,10 @@
 #define TARGET_FILE_H
 
 #include <stdint.h>
+#include <map>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
 
 #include "target.h"
 
@@ -14,8 +18,11 @@ public:
         virtual void check( Build &bld );
         virtual void clean( Build &bld );
 
-private:
+        time_t getTime( class Build &bld, std::string str );
+        void updateTime( std::string str );
 
+private:
+        std::map<std::string, time_t> mTimes;
 };
 
 #endif
diff --git a/src/viewer.cpp b/src/viewer.cpp
index 93b2ac1..51acc3b 100644
--- a/src/viewer.cpp
+++ b/src/viewer.cpp
@@ -7,3 +7,48 @@ Viewer::Viewer()
 Viewer::~Viewer()
 {
 }
+
+void Viewer::beginAction( const std::string &sName, int nCommands )
+{
+}
+
+void Viewer::endAction()
+{
+}
+
+void Viewer::beginCommand( Action::eAction nAct, const std::string &sTarget, int nPerforms )
+{
+}
+
+void Viewer::endCommand()
+{
+}
+
+void Viewer::beginRequiresCheck( bool bCached, const std::string &sName )
+{
+}
+
+void Viewer::endRequiresCheck()
+{
+}
+
+void Viewer::beginPerform( Perform *pPerform )
+{
+}
+
+void Viewer::endPerform()
+{
+}
+
+void Viewer::beginExecute()
+{
+}
+
+void Viewer::endExecute()
+{
+}
+
+void Viewer::executeCmd( const std::string &sCmd )
+{
+}
+
diff --git a/src/viewer.h b/src/viewer.h
index 04f4ea7..93cebb7 100644
--- a/src/viewer.h
+++ b/src/viewer.h
@@ -2,7 +2,10 @@
 #define VIEWER_H
 
 #include <stdint.h>
+#include <string>
+#include "action.h"
 
+class Perform;
 
 class Viewer
 {
@@ -10,6 +13,20 @@ public:
         Viewer();
         virtual ~Viewer();
 
+        virtual void beginAction( const std::string &sName, int nCommands );
+        virtual void endAction();
+
+        virtual void beginCommand( Action::eAction nAct, const std::string &sTarget, int nPerforms );
+        virtual void endCommand();
+
+        virtual void beginRequiresCheck( bool bCached, const std::string &sName );
+        virtual void endRequiresCheck();
+        virtual void beginPerform( Perform *pPerform );
+        virtual void endPerform();
+        virtual void beginExecute();
+        virtual void endExecute();
+        virtual void executeCmd( const std::string &sCmd );
+
 private:
 
 };
diff --git a/src/viewerfactory.cpp b/src/viewerfactory.cpp
new file mode 100644
index 0000000..3778c37
--- /dev/null
+++ b/src/viewerfactory.cpp
@@ -0,0 +1,12 @@
+#include "viewerfactory.h"
+
+extern struct PluginInfo plain;
+
+ViewerFactory::ViewerFactory()
+{
+        registerBuiltinPlugin( &plain );
+}
+
+ViewerFactory::~ViewerFactory()
+{
+}
diff --git a/src/viewerfactory.h b/src/viewerfactory.h
new file mode 100644
index 0000000..8704e03
--- /dev/null
+++ b/src/viewerfactory.h
@@ -0,0 +1,20 @@
+#ifndef VIEWER_FACTORY_H
+#define VIEWER_FACTORY_H
+
+#include <stdint.h>
+
+#include "viewer.h"
+#include "plugger.h"
+#include "singleton.h"
+
+class ViewerFactory : public Plugger<Viewer>, public Singleton<ViewerFactory>
+{
+public:
+        ViewerFactory();
+        virtual ~ViewerFactory();
+
+private:
+
+};
+
+#endif
diff --git a/src/viewerplain.cpp b/src/viewerplain.cpp
new file mode 100644
index 0000000..f2123b0
--- /dev/null
+++ b/src/viewerplain.cpp
@@ -0,0 +1,42 @@
+#include "viewerplain.h"
+#include "perform.h"
+#include "plugger.h"
+
+PluginInterface2( plain, ViewerPlain, Viewer, "Mike Buland", 0, 1 );
+
+ViewerPlain::ViewerPlain()
+{
+}
+
+ViewerPlain::~ViewerPlain()
+{
+}
+
+void ViewerPlain::beginCommand( Action::eAction nAct, const std::string &sTarget, int nPerforms )
+{
+        printf("--- check %s ---\n", sTarget.c_str() );
+}
+
+void ViewerPlain::endCommand()
+{
+        printf("---\n");
+}
+
+void ViewerPlain::beginRequiresCheck( bool bCached, const std::string &sName )
+{
+        printf("     deps: %s\n", sName.c_str() );
+}
+
+void ViewerPlain::endRequiresCheck()
+{
+}
+
+void ViewerPlain::beginPerform( Perform *pPerform )
+{
+        printf(" %8s: %s\n", pPerform->getRule().c_str(), pPerform->getTarget().c_str() );
+}
+
+void ViewerPlain::endPerform()
+{
+}
+
diff --git a/src/viewerplain.h b/src/viewerplain.h
new file mode 100644
index 0000000..6e37c28
--- /dev/null
+++ b/src/viewerplain.h
@@ -0,0 +1,26 @@
+#ifndef VIEWER_PLAIN_H
+#define VIEWER_PLAIN_H
+
+#include <stdint.h>
+
+#include "viewer.h"
+
+class ViewerPlain : public Viewer
+{
+public:
+        ViewerPlain();
+        virtual ~ViewerPlain();
+
+        virtual void beginCommand( Action::eAction nAct, const std::string &sTarget, int nPerforms );
+        virtual void endCommand();
+
+        virtual void beginRequiresCheck( bool bCached, const std::string &sName );
+        virtual void endRequiresCheck();
+        virtual void beginPerform( Perform *pPerform );
+        virtual void endPerform();
+
+private:
+
+};
+
+#endif