introduce transpile to cpp

.vscode/c_cpp_properties.json

@@ -4,13 +4,14 @@
             "name": "Linux",
             "includePath": [
                 "${workspaceFolder}/include",
-                "${workspaceFolder}/**",
+                "${workspaceFolder}/lib/antlr4/include",
+                "${workspaceFolder}/lib/cxxopts/include",
                 "${workspaceFolder}/lib/generated"
             ],
             "defines": [],
             "compilerPath": "/usr/lib64/ccache/clang",
             "cStandard": "c11",
-            "cppStandard": "c++14",
+            "cppStandard": "c++11",
             "intelliSenseMode": "clang-x64",
             "configurationProvider": "ms-vscode.cmake-tools"
         }

.vscode/launch.json

@@ -10,7 +10,7 @@
             "name": "Grammar - simple.bfe",
             "input": "samples/simple.bfe",
             "visualParseTree": true,
-            "grammar": "${workspaceFolder}/grammar/bf.g4"
+            "grammar": "${workspaceFolder}/grammar/bfe.g4"
         },
         {
             "type": "antlr-debug",
@@ -18,7 +18,15 @@
             "name": "Grammar - group.bfe",
             "input": "samples/group.bfe",
             "visualParseTree": true,
-            "grammar": "${workspaceFolder}/grammar/bf.g4"
+            "grammar": "${workspaceFolder}/grammar/bfe.g4"
+        },
+        {
+            "type": "antlr-debug",
+            "request": "launch",
+            "name": "Grammar - testmem.bfe",
+            "input": "samples/testmem.bfe",
+            "visualParseTree": true,
+            "grammar": "${workspaceFolder}/grammar/bfe.g4"
         },
         {
             "name": "GDB - simple.bfe",
@@ -39,6 +47,25 @@
                 }
             ]
         },
+        {
+            "name": "GDB - simple.bfe - Translate to BF",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/build/main.out",
+            "args": ["samples/simple.bfe","-a","bf"],
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                }
+            ]
+        },
         {
             "name": "GDB - group.bfe",
             "type": "cppdbg",
@@ -57,6 +84,44 @@
                     "ignoreFailures": true
                 }
             ]
+        },
+        {
+            "name": "GDB - error.bfe",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/build/main.out",
+            "args": ["samples/error.bfe"],
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                }
+            ]
+        },
+        {
+            "name": "GDB - testmem.bfe",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/build/main.out",
+            "args": ["samples/testmem.bfe"],
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                }
+            ]
         }
     ]
 }

.vscode/settings.json

@@ -70,6 +70,8 @@
         "streambuf": "cpp",
         "thread": "cpp",
         "cinttypes": "cpp",
-        "typeinfo": "cpp"
+        "typeinfo": "cpp",
+        "regex": "cpp",
+        "shared_mutex": "cpp"
     }
 }

CMakeLists.txt

@@ -10,6 +10,7 @@ set(CMAKE_CXX_STANDARD_REQUIRED True)
 set(SOURCES
     src/main.cpp
     src/toBFListener.cpp
+    src/toCPPListener.cpp
     src/executeBFE.cpp
     lib/generated/bfeLexer.cpp
     lib/generated/bfeParser.cpp
@@ -27,5 +28,6 @@ target_include_directories(main.out
         ${PROJECT_SOURCE_DIR}/lib/generated
         ${PROJECT_SOURCE_DIR}/include
         ${PROJECT_SOURCE_DIR}/lib/antlr4/include
+        ${PROJECT_SOURCE_DIR}/lib/cxxopts/include
 
 )

README.md

@@ -1,25 +1,76 @@
-# bfc
+# (+97>)3<3+>+5>+2<2(.>)3 (*.bfe)
 
-An extension of a language that shall not be named
+A slight syntactic superset of BF.
 
-*Hello world*
+Development requirements:
+1. cxxopts -> v2.2.1
+2. antlr4
+
+
+*HelloWorld.bfe*
 ```
 -[-7>+<]>-.-[->+5<]>++.+7..+3.[-3>+<]>-5.--[->+4<]>-.-8.+3.-6.-8.
 ```
 
-## Setup oddities
+## Functions
+
+1. Interpret bfe(and bf) files
+2. Convert bf/bfe to bf
+3. Convert bf/bfe to C++ (not optimized)
+
+
+## Usage
+
+```sh
+./bfc -h #Help
+./bfc prog.bfe #Execute
+./bfc prog.bfe -a bf #Translate file to bf
+./bfc prog.bfe -a cpp # Translate file to cpp
+```
+
+## Syntax
+
+**Basic**
+
+```bf
+,. IO
+<> Address manipulation
++- Value manipulation
+[] Looping construct
+```
+**Comments**
+
+`//` - Single Line
+
+`/* */` - Multi Line
+
+**Repeats**
+
+```
+<symbol><number>
+(<symbols>)<number>
+```
+Eg.
+```
++65. //prints A
+>
+(+65>)3 //stores AAA
+(<.)3   //prints AAA
+```
+
+
+## Setup oddities (dev)
 
 1. Copy antlr4's cpp libs to `./libs/antlr4`. (Please take care that the include folder points straight to the files not to `antlr-runtime`)
 2. Copy `antlr-4.8-complete.jar` to `./thirdparty/antlr`.
 3. Generate parsers to `./libs/generated` or use VSCode with the ANTLR extension.
 
-
 ## Todo (Tentative)
 
 - [ ] Grammar
     - [X] Number shorthand
     - [X] Loop statements
     - [ ] Shorthand segments
-- [ ] Processing
+- [X] Processing
     - [X] Translate to bf
-    - [ ] Execute result
+    - [X] Execute results

include/executeBFE.hpp

@@ -9,11 +9,11 @@ using namespace antlr4;
 using namespace antlrcpp;
 // using namespace std;
 class executeBGE: public bfeBaseVisitor{
-    private:
+    protected:
         std::vector<char> memory;
         int pointer=0;
     public:
-        executeBGE() : bfeBaseVisitor(),memory(100) {
+        executeBGE() : bfeBaseVisitor(),memory(1) {
         }
         // Any visitProgram(bfeParser::ProgramContext*) override;
         Any visitNumberedStmt(bfeParser::NumberedStmtContext*) override;

include/toBFListener.hpp

@@ -22,4 +22,6 @@ class toBFListener : public bfeBaseListener {
         void exitLoopStmt(bfeParser::LoopStmtContext *ctx) override;
         void enterGroupedStmt(bfeParser::GroupedStmtContext *ctx) override;
         void exitGroupedStmt(bfeParser::GroupedStmtContext *ctx) override;
+        void enterOutputStmt(bfeParser::OutputStmtContext *ctx) override;
+        void enterInputStmt(bfeParser::InputStmtContext *ctx) override;
 };

include/toCPPListener.hpp

@@ -0,0 +1,27 @@
+#pragma once
+
+#include<string>
+#include "bfeLexer.h"
+#include "bfeParser.h"
+#include "bfeBaseListener.h"
+
+
+class toCPPListener : public bfeBaseListener {
+    protected:
+        std::vector<std::string> printStack;
+    public:
+        void enterProgram(bfeParser::ProgramContext *ctx) override;
+        void exitProgram(bfeParser::ProgramContext *ctx) override ;
+        void enterPtrIncr(bfeParser::PtrIncrContext *ctx) override;
+        void enterPtrDecr(bfeParser::PtrDecrContext *ctx) override;
+        void enterPtrLeft(bfeParser::PtrLeftContext *ctx) override;
+        void enterPtrRight(bfeParser::PtrRightContext *ctx) override;
+        void enterNumberedStmt(bfeParser::NumberedStmtContext *ctx) override;
+        void exitNumberedStmt(bfeParser::NumberedStmtContext *ctx) override;
+        void enterLoopStmt(bfeParser::LoopStmtContext *ctx) override;
+        void exitLoopStmt(bfeParser::LoopStmtContext *ctx) override;
+        void enterGroupedStmt(bfeParser::GroupedStmtContext *ctx) override;
+        void exitGroupedStmt(bfeParser::GroupedStmtContext *ctx) override;
+        void enterOutputStmt(bfeParser::OutputStmtContext *ctx) override;
+        void enterInputStmt(bfeParser::InputStmtContext *ctx) override;
+};

samples/bfc.bfe

@@ -0,0 +1 @@
+(+97>)3<3+>+5>+2<2(.>)3

samples/error.bfe

@@ -0,0 +1 @@
++65.<

samples/test.bfe

@@ -0,0 +1,48 @@
+>,<>>,>,<[->-               
+                                  >+<><<]+->>[-<<+>>]            
+                                <+-><><<<[-+->-<+-<+>]<          
+                               [->+<]><>>>>>><>++->>+->>         
+                              >>>+[>><>>>[-]<[-<>-+]<<>[-        
+                             +-]-++-+-<         [-]<><<>[+       
+                            ---+]<><<             <<+-<<<<>      
+                           -+<><<<>                 <+-<<[->     
+                          >>>>>>+                     >>>>>-+    
+                         >+<<<><            <          <><<<<<   
+                        <<<<]>[           ->>           >>><><>  
+                       ><>>+>>          >>>>+            <<<<<>< 
+                      <<<<+-<           <<<]>             [->>>>>
+                                        >><>+                    
+                                        >>>>-                    
+                                        +><>>                    
+                                        +<<<<                    
+                                        <<+-<                    
+         <<<><<<<        -+><]     >>-++-+>+-+[<-]      <[->>    
+      <>++-<<<]>>>>      [-<<<     +--+<<<<+>><>>>      >>>]>    
+     [-<<-+<<<<<+<>>     +->>>     >>>]>[-<<<<><<<      ><<+>    
+    >>>>>>]>>>>>><>>+    [-<<<     <+--+<><+-<<<<<      <[->>    
+   +>>+<<<<]+->[->>+>>   +-+<<     <<]>[-<<+>>]>[-      <<+>>    
+  ]+[[<>-]-++>[<-]<+-[   +--><     >><>-<<<]>>-+->      >>+>[    
+ <-]<+-[-       >+>[-    <-]<[          >>[-<           <-+->    
+ ]-<<[->         ><-     >+->-          +-<<<           <]]<]    
+ >>-<<<           <      <+>[>          <<-]<           [>+->    
+[-+<<-                   >]<<[          <]]>-           +-]>>    
+>>><>>                   >><>+          ]-<<<           >+-<<    
+<>+>-                    ++[<-          ]<[-+           >>+[<    
+<<>->                    -+]<<          [>>>+           [<-+<    
+<->>]                    <<<[<          ]]]>-           ]>>>>    
+[-]<<                    <<<<<          -+<><           <<<<<    
+<[-]>                    >+>+[          <-]<[           ->>+<    
+><<<]                    >+>[<          -]<[>           >[<<-    
+>]<<[                    <]]>-          [+>>>           >>>><    
+++-++                    +++++          ++<<<           <<<+>    
++-[<<>                   -]<[>          >[<<-           >]<<[    
+<]]>-[                   ++>[<          -]<[-           >>-<<    
+ <]>>->           >      +>>+>          -[<-]           <[<<[    
+ ->>>+<<         ><<     ]+->>          >>>+>           +[<><    
+ -]<><[->       >+<<<    ]<<-<          ]<<<<           +>[<-    
+  ]<[>>[<<->]<<[<]]>-]   >>+++          +++++[   ->     +++++    
+   +<]>[-<<<<+>>>>]>>>   >>+><          >-+[<-]<[>>     [<<->    
+    ]<<[<]]>-[++>[<-]    <[->>          -<<<]>>-<<<     <<<<<    
+     +>+[<-]<[->>+<<     <]>>>          >>>>>+>[<-      ]<[>>    
+      [<<->]<<[<]]>      -]<<[           -]<<<<<+>      [<-]<    
+         [>>[<<->        ]<<[<            ]]>-]<<       [.<]

samples/testmem.bfe

@@ -0,0 +1 @@
+(+65.>)65536

src/executeBFE.cpp

@@ -20,9 +20,6 @@ Any executeBGE::visitNumberedStmt(bfeParser::NumberedStmtContext *ctx){
 }
 
 Any executeBGE::visitPtrIncr(bfeParser::PtrIncrContext *ctx){
-    if(memory.size()<pointer){
-        memory.push_back(0);
-    }
     memory[pointer]++;
     return Any();
 }
@@ -33,12 +30,23 @@ Any executeBGE::visitPtrDecr(bfeParser::PtrDecrContext *ctx){
 }
 
 Any executeBGE::visitPtrRight(bfeParser::PtrRightContext *ctx){
+    // too much -> throw this program out
+    if(memory.max_size()==memory.size()){
+        throw (std::string("Max Size Reached ")+to_string(memory.capacity()));
+    }
+    // its about to be incremented -> need to increase
+    if(memory.size()==pointer+1){
+        memory.push_back(0);
+    }
     pointer++;
     return Any();
 }
 
 Any executeBGE::visitPtrLeft(bfeParser::PtrLeftContext *ctx){
-    if(pointer==0) throw std::string("Decrement below zero");
+    
+    if(pointer==0){
+        throw std::string("Decrement below zero");
+    }
     pointer--;
     return Any();
 }

src/main.cpp

@@ -1,20 +1,45 @@
 #include <iostream>
 #include <vector>
 #include <string>
-#include <antlr4-common.h>
+#include <cxxopts.hpp>
+#include "antlr4-common.h"
+#include "cxxopts.hpp"
 #include "bfeLexer.h"
 #include "bfeParser.h"
 #include "toBFListener.hpp"
+#include "toCPPListener.hpp"
 #include "executeBFE.hpp"
 
-
 using namespace antlr4;
 
-int main(int argc, const char *argv[])
+int main(int argc, char **argv)
 {
+    cxxopts::Options options(argv[0], "An interpreter/translator for bfe");
+
+    options.add_options()
+    ("a,action", "Action (exec,cpp,bf)", cxxopts::value<std::string>()->default_value("exec"))
+    ("i,input", "Input (First argument)", cxxopts::value<std::string>())
+    ("h,help", "Print usage");
+    options.parse_positional({"input"});
+    // try
+    {
+        auto results = options.parse(argc, argv);
+        std::string action = results["action"].as<std::string>();
+        if (action.compare("exec") && action.compare("bf") && action.compare("cpp"))
+        {
+            action = std::string( "exec");
+        }
+        if (results.count("help"))
+        {
+            std::cout << options.help() << std::endl;
+            return 0;
+        }
+        if (results.count("input"))
+        {
+            // std::cout << results["input"].as<std::string>()<<std::endl;
             std::ifstream stream;
             bool outFile = false;
-    stream.open(argv[1]);
+            stream.open(results["input"].as<std::string>());
             if (stream.fail())
             {
                 std::cout << "Could not open" << std::endl;
@@ -26,14 +51,43 @@ int main(int argc, const char *argv[])
             bfeParser parser(&tokens);
 
             tree::ParseTree *tree = parser.program();
-    // toBFListener listener;
+            if (action.compare("bf")==0)
-    // tree::ParseTreeWalker::DEFAULT.walk(&listener, tree);
+            {
+                toBFListener listener;
+                tree::ParseTreeWalker::DEFAULT.walk(&listener, tree);
+            }
+            else if (action.compare( "exec")==0)
+            {
                 executeBGE *visitor = new executeBGE();
-    try{
+                try
+                {
                     visitor->visit(tree);
                     std::cout << std::endl;
-    }catch(std::string e){
-        std::cout<<"Illegal:"<<e<<std::endl;
                 }
+                catch (std::string e)
+                {
+                    std::cout << "\nIllegal:" << e << std::endl;
+                }
+            }
+            else
+            {
+                //else cpp
+                toCPPListener listener;
+                tree::ParseTreeWalker::DEFAULT.walk(&listener, tree);
+            }
+        }
+        else
+        {
+            std::cout << "?:Expected file" << std::endl;
+            return 1;
+        }
+    }
+    // catch (std::exception e)
+    // {
+    //     std::cout << "E:" << e.what() << "\n";
+    //     return 1;
+    // }
+
+    // if(argc>2 && )
     return 0;
 }

src/toBFListener.cpp

@@ -29,6 +29,12 @@ void toBFListener::enterPtrRight(bfeParser::PtrRightContext *ctx)
 {
     printStack.back() += (">");
 }
+void toBFListener::enterOutputStmt(bfeParser::OutputStmtContext *ctx) {
+    printStack.back() += (".");
+}
+void toBFListener::enterInputStmt(bfeParser::InputStmtContext *ctx) {
+    printStack.back() += (",");
+}
 
 void toBFListener::enterNumberedStmt(bfeParser::NumberedStmtContext *ctx)
 {
@@ -44,9 +50,14 @@ void toBFListener::exitNumberedStmt(bfeParser::NumberedStmtContext *ctx)
         printStack.back() += s;
     }
 }
+
+
+
 void toBFListener::enterLoopStmt(bfeParser::LoopStmtContext *ctx){
     printStack.push_back("");
 }
+
+
 void toBFListener::exitLoopStmt(bfeParser::LoopStmtContext *ctx){
     std::string s = printStack.back();
     printStack.pop_back();

src/toCPPListener.cpp

@@ -0,0 +1,79 @@
+#include "bfeParser.h"
+#include "bfeBaseListener.h"
+#include "toCPPListener.hpp"
+// #include "bfBaseVisitor.h"
+
+using namespace antlr4;
+
+void toCPPListener::enterProgram(bfeParser::ProgramContext *ctx)
+{
+    printStack.push_back("#include<iostream>\n#include<vector>\nusing namespace std;\nint main(){\nvector<char> vec(1000,0);int ptr = 0;\n");
+}
+void toCPPListener::exitProgram(bfeParser::ProgramContext *ctx)
+{
+    std::cout << printStack.front() << "}\n"<< std::endl;
+}
+void toCPPListener::enterPtrIncr(bfeParser::PtrIncrContext *ctx)
+{
+    // printStack.back() += "+";
+    printStack.back()+= "vec[ptr]++;\n";
+}
+void toCPPListener::enterPtrDecr(bfeParser::PtrDecrContext *ctx)
+{
+    // printStack.back() += ("-");
+    printStack.back()+= "vec[ptr]--;\n";
+}
+void toCPPListener::enterPtrLeft(bfeParser::PtrLeftContext *ctx)
+{
+    // printStack.back() += ("<");
+    printStack.back() += ("ptr--;\n");
+}
+void toCPPListener::enterPtrRight(bfeParser::PtrRightContext *ctx)
+{
+
+    printStack.back() += ("ptr++;\n");
+}
+
+void toCPPListener::enterNumberedStmt(bfeParser::NumberedStmtContext *ctx)
+{
+    printStack.push_back("");
+}
+void toCPPListener::exitNumberedStmt(bfeParser::NumberedStmtContext *ctx)
+{
+    std::string s = printStack.back();
+    printStack.pop_back();
+    int n = stoi(ctx->NUMBER()->getText());
+    for (int i = 0; i < n; i++)
+    {
+        printStack.back() += s;
+    }
+}
+void toCPPListener::enterLoopStmt(bfeParser::LoopStmtContext *ctx){
+    printStack.push_back("");
+}
+void toCPPListener::exitLoopStmt(bfeParser::LoopStmtContext *ctx){
+    std::string s = printStack.back();
+    printStack.pop_back();
+    printStack.back()+= "while(vec[ptr]){\n"+s+"}\n";
+}
+
+void toCPPListener::enterOutputStmt(bfeParser::OutputStmtContext *ctx){
+    std::string s = printStack.back();
+    // printStack.pop_back();
+    printStack.back()+= "cout<<vec[ptr];\n";
+}
+
+void toCPPListener::enterInputStmt(bfeParser::InputStmtContext *ctx){
+    // std::string s = printStack.back();
+    // printStack.pop_back();
+    printStack.back()+= "cin>>vec[ptr];\n";
+}
+
+void toCPPListener::enterGroupedStmt(bfeParser::GroupedStmtContext *ctx){
+    printStack.push_back("");
+}
+void toCPPListener::exitGroupedStmt(bfeParser::GroupedStmtContext *ctx){
+    std::string s = printStack.back();
+    printStack.pop_back();
+    printStack.back()+=(s);
+}