Added all built-in functions

5 files changed, 62 insertions, 0 deletions

diff --git a/include/cps/CharHandler.h b/include/cps/CharHandler.h
new file mode 100644
index 0000000..03c86e7
--- /dev/null
+++ b/include/cps/CharHandler.h
@@ -0,0 +1,23 @@
+#pragma once
+#include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
+
+namespace cps {
+
+class CharHandler {
+    llvm::LLVMContext &Context;
+    llvm::IRBuilder<> &Builder;
+    llvm::Module &Module;
+
+public:
+    CharHandler(llvm::LLVMContext &Ctx, llvm::IRBuilder<> &B, llvm::Module &M);
+    
+    // ASC(ThisChar: CHAR) RETURNS INTEGER
+    llvm::Value *emitAsc(llvm::Value *CharVal);
+    
+    // CHR(x: INTEGER) RETURNS CHAR
+    llvm::Value *emitChr(llvm::Value *IntVal);
+};
+
+} // namespace cps
diff --git a/include/cps/CodeGen.h b/include/cps/CodeGen.h
index cb8cecb..121f30d 100644
--- a/include/cps/CodeGen.h
+++ b/include/cps/CodeGen.h
@@ -11,6 +11,8 @@
 #include "cps/BooleanHandler.h"
 #include "cps/ArithmeticHandler.h"
 #include "cps/StringHandler.h"
+#include "cps/CharHandler.h"
+#include "cps/StringConversionHandler.h"
 
 #include <map>
 #include <memory>
@@ -34,6 +36,8 @@ class CodeGen {
     std::unique_ptr<BooleanHandler> BoolHandler;
     std::unique_ptr<ArithmeticHandler> ArithHandler;
     std::unique_ptr<StringHandler> StrHandler;
+    std::unique_ptr<CharHandler> ChrHandler;
+    std::unique_ptr<StringConversionHandler> StrConvHandler;
 
     llvm::FunctionCallee PrintfFunc;
     llvm::FunctionCallee ScanfFunc;
diff --git a/include/cps/Lexer.h b/include/cps/Lexer.h
index c36599f..df84d0b 100644
--- a/include/cps/Lexer.h
+++ b/include/cps/Lexer.h
@@ -48,6 +48,7 @@ enum Token {
     tok_lcase = -34,
     tok_ucase = -35,
     tok_string_literal = -36,
+    tok_left = -37,
 
     tok_identifier = -100,
     tok_number_int = -101,
diff --git a/include/cps/StringConversionHandler.h b/include/cps/StringConversionHandler.h
new file mode 100644
index 0000000..db493bf
--- /dev/null
+++ b/include/cps/StringConversionHandler.h
@@ -0,0 +1,33 @@
+#pragma once
+#include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
+
+namespace cps {
+
+class StringConversionHandler {
+    llvm::LLVMContext &Context;
+    llvm::IRBuilder<> &Builder;
+    llvm::Module &Module;
+
+    llvm::FunctionCallee SprintfFunc;
+    llvm::FunctionCallee StrtolFunc;
+    llvm::FunctionCallee StrtodFunc;
+    llvm::FunctionCallee MallocFunc;
+
+public:
+    StringConversionHandler(llvm::LLVMContext &Ctx, llvm::IRBuilder<> &B, llvm::Module &M);
+    
+    void setupExternalFunctions();
+    
+    // NUM TO STR(x) RETURNS STRING
+    llvm::Value *emitNumToStr(llvm::Value *Num, bool IsReal);
+    
+    // STR TO NUM(x) RETURNS NUMBER
+    llvm::Value *emitStrToNum(llvm::Value *Str, bool AsReal);
+    
+    // IS NUM(ThisString) RETURNS BOOLEAN
+    llvm::Value *emitIsNum(llvm::Value *Str);
+};
+
+} // namespace cps
diff --git a/include/cps/StringHandler.h b/include/cps/StringHandler.h
index 87710fb..a31fd2b 100644
--- a/include/cps/StringHandler.h
+++ b/include/cps/StringHandler.h
@@ -31,6 +31,7 @@ public:
     llvm::Value *emitLength(llvm::Value *Str);
     llvm::Value *emitMid(llvm::Value *Str, llvm::Value *Start, llvm::Value *Len);
     llvm::Value *emitRight(llvm::Value *Str, llvm::Value *Len);
+    llvm::Value *emitLeft(llvm::Value *Str, llvm::Value *Len);
     llvm::Value *emitLCase(llvm::Value *Str);
     llvm::Value *emitUCase(llvm::Value *Str);
 };