Implemented while

build.bat

@@ -5,23 +5,22 @@ pushd %~dp0
 set exeName=slime.exe
 set binDir=bin
 
-mkdir quickbuild 2>nul
-pushd quickbuild
+mkdir build 2>nul
+pushd build
 
 taskkill /F /IM %exeName% > NUL 2> NUL
 
 echo ---------- Compiling ----------
-call timecmd cl ../src/main.c /Fe%exeName% /W3 /Ox /O2 /Oi /TC /nologo /EHsc /link
+call timecmd cl ../src/main.c /Fe%exeName% /D_DEBUG /W3 /TC /Zi /nologo /EHsc /link
 
 if %errorlevel% == 0 (
    echo.
-   if not exist ..\%binDir% mkdir ..\%binDir%
-   move %exeName% ..\%binDir%\ > NUL
+   echo Done
 ) else (
   echo.
-  echo Fucki'n 'ell
+  echo Fuckin' ell
 )
 
 popd
-rd quickbuild /S /Q
+rem rd build /S /Q
 popd

debug.bat

@@ -1,4 +1,4 @@
 @echo off
-pushd %~dp0\vs
-start slime.sln
+pushd %~dp0
+start "" "cdbg64.exe" build\slime.exe
 popd

src/ast.c

@@ -156,6 +156,7 @@ typedef enum {
     Built_In_Rest,
     Built_In_Subtraction,
     Built_In_Type,
+    Built_In_While,
 } Built_In_Name;
 
 /**
@@ -196,6 +197,7 @@ char* Built_In_Name_to_string(Built_In_Name name) {
     case Built_In_Rest:           return "rest";
     case Built_In_Subtraction:    return "-";
     case Built_In_Type:           return "type";
+    case Built_In_While:          return "while";
     }
 
     return "Built in string missing in Built_In_Name_to_string";
@@ -311,6 +313,7 @@ Ast_Node* create_ast_node_built_in_function(char* name) {
     else if (string_equal(name, "read"))         type = Built_In_Read;
     else if (string_equal(name, "rest"))         type = Built_In_Rest;
     else if (string_equal(name, "type"))         type = Built_In_Type;
+    else if (string_equal(name, "while"))        type = Built_In_While;
     else return nullptr;
 
     Ast_Node* node = new(Ast_Node);

src/eval.c

@@ -632,6 +632,23 @@ Ast_Node* eval_expr(Ast_Node* node, Environment* env) {
                     return create_ast_node_nil();
                 return create_ast_node_t();
             }
+            case Built_In_While: {
+                try {
+                    arguments_length = list_length(arguments);
+                }
+
+                if (arguments_length < 2) {
+                    report_error(Error_Type_Wrong_Number_Of_Arguments);
+                }
+                Ast_Node* condition = arguments->value.pair->first;
+                Ast_Node* then_part = arguments->value.pair->rest;
+                Ast_Node* result = create_ast_node_nil();
+                while (eval_expr(condition, env)->type != Ast_Node_Type_Nil) {
+                    result = eval_expr(then_part->value.pair->first, env);
+                }
+                return result;
+
+            }
             case Built_In_If: {
                 try {
                     arguments_length = list_length(arguments);

src/io.c

@@ -1,7 +1,13 @@
-#define console_normal "\x1B[0m"
-#define console_red    "\x1B[31m"
-#define console_green  "\x1B[32m"
-#define console_cyan   "\x1B[36m"
+/* #define console_normal "\x1B[0m" */
+/* #define console_red    "\x1B[31m" */
+/* #define console_green  "\x1B[32m" */
+/* #define console_cyan   "\x1B[36m" */
+
+#define console_normal ""
+#define console_red    ""
+#define console_green  ""
+#define console_cyan   ""
+
 
 typedef enum {
     Log_Level_None,

vs/slime.vcxproj

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
@@ -30,7 +30,7 @@
     <VCProjectVersion>15.0</VCProjectVersion>
     <ProjectGuid>{1A47A3ED-871F-4CB4-875B-8CAA385B1771}</ProjectGuid>
     <RootNamespace>slime</RootNamespace>
-    <WindowsTargetPlatformVersion>10.0.16299.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>10.0.15063.0</WindowsTargetPlatformVersion>
     <ProjectName>slime</ProjectName>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />