feat: remove cpp-peglib, add python interfacing

.pre-commit-config.yaml

@@ -11,7 +11,6 @@ repos:
       - id: clang-format
         args: [--style=file]
       - id: cppcheck
-      - id: cpplint
       # - id: clang-tidy
       # - id: include-what-you-use
 

CMakeLists.txt

@@ -17,22 +17,14 @@ if(PROJECT_SOURCE_DIR STREQUAL PROJECT_BINARY_DIR)
   )
 endif()
 
-if(MSVC)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /Zc:__cplusplus /utf-8 /D_CRT_SECURE_NO_DEPRECATE")
-else()
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra")
-endif()
-
 # ---- Add dependencies via CPM ----
 include(cmake/CPM.cmake)
 include(cmake/tools.cmake)
 
-CPMAddPackage(
-  NAME peglib
-  GIT_TAG v1.9.1
-  GITHUB_REPOSITORY yhirose/cpp-peglib
-  OPTIONS "PEGLIB_BUILD_LINT YES"
-)
+# Add python-dev library to interface with python
+
+find_package(PythonLibs REQUIRED)
+include_directories(${PYTHON_INCLUDE_DIRS})
 
 # ---- Add source files ----
 
@@ -52,5 +44,4 @@ target_include_directories(
                          $<INSTALL_INTERFACE:${PROJECT_NAME}-${PROJECT_VERSION}>
 )
 
-target_include_directories(${PROJECT_NAME} PUBLIC peglib)
-target_link_libraries(${PROJECT_NAME} PUBLIC peglib)
+target_link_libraries(${PROJECT_NAME} PUBLIC ${PYTHON_LIBRARIES})

README.md

@@ -2,7 +2,7 @@
 
 ### B Compiler to z80 in C++
 
-* The frontend is built with Parsing Expression Grammars (PEG) via [cpp-peglib](https://github.com/yhirose/cpp-peglib)
+* The frontend is built with a [easy-to-read LALR(1) grammar and parser generator in python](https://github.com/jahan-addison/xion/tree/master), that interfaces with C++ via CPython
 * The backend will focus on modern work in SSA, Sea of Nodes, and compiler optimizations through IR breakthroughs in LLVM, gcc, V8, and related toolchains.
 
 

grammar/b-grammar.abnf

@@ -161,4 +161,4 @@ COMMENT    : "/*" /(\S|\s)*?/ "*/"
 WHITESPACE : /[ \t\f\r\n]/+
 
 %ignore WHITESPACE   // Ignore whitespace
-%ignore COMMENT      // Ignore comments
+%ignore COMMENT      // Ignore comments

roxas/main.cc

@@ -1,7 +1,25 @@
+/*
+ * Copyright (c) Jahan Addison
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 #include <iostream>
-#include <peglib.h>
+
+// https://stackoverflow.com/questions/39813301/creating-a-python-object-in-c-and-calling-its-method
+#include <Python.h>
 
 int main(void)
 {
     std::cout << "Hello, World" << std::endl;
-}
+}