Remove memory allocation bug

.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": "${workspaceFolder}/grammar/bfe.g4"
         },
         {
             "name": "GDB - simple.bfe",
@@ -57,6 +65,44 @@
                     "ignoreFailures": true
                 }
             ]
+        },
+        {
+            "name": "GDB - error.bfe",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${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

@@ -27,5 +27,6 @@ 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 +1,68 @@
-# bfc
+# bfc (*.bfe)
 
 An extension of a language that shall not be named
 
-*Hello world*
+Requires:
+1. cxxopts -> v2.2.1
+2. antlr4
+
+
+*HelloWorld.bfe*
 ```
 -[-7>+<]>-.-[->+5<]>++.+7..+3.[-3>+<]>-5.--[->+4<]>-.-8.+3.-6.-8.
 ```
 
-## Setup oddities
+## Usage
+
+```sh
+./bfc -h #Help
+./bfc prog.bfe #Execute
+./bfc prog.bfe -t #Translate file to bf
+```
+
+## 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;

samples/error.bfe

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

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 +1,37 @@
 #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 "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()
+        ("t,translate", "Translate to bf", cxxopts::value<bool>()->default_value("false"))
+        ("i,input", "Input(First argument)", cxxopts::value<std::string>())
+        ("h,help", "Print usage");
+    options.parse_positional({"input"});
+    auto results = options.parse(argc, argv);
+    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 +43,28 @@ int main(int argc, const char *argv[])
         bfeParser parser(&tokens);
 
         tree::ParseTree *tree = parser.program();
-    // toBFListener listener;
-    // tree::ParseTreeWalker::DEFAULT.walk(&listener, tree);
+        if(results["translate"].as<bool>()){
+            toBFListener listener;
+            tree::ParseTreeWalker::DEFAULT.walk(&listener, tree);
+        }else{
             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{
+        std::cout<<"?:Expected file"<<std::endl;
+        return 1;
+    }
+    
+    
+
+    // if(argc>2 && )
     return 0;
 }