Print strings

docs/syntax.md

@@ -8,4 +8,12 @@ Create a boolean: `bool name value`
 
 Create an integer: `int name value`
 
-**Note**: A string of dynamic length can be created by setting the bytes to -1.
+**Note**: A string of dynamic length can be created by setting the bytes to -1.
+
+Print a string: `print name`
+
+Example program (prints "Hello, World"):
+```cpp
+string var 13 "Hello, world!"
+print var
+```

readme.md

@@ -33,4 +33,4 @@ Example:
 python src/main.py tests/create.basm test.bf
 ```
 
-This will create a Brainfuck file named test.bf that contains the compiled code of our test programs.
+This will create a Brainfuck file named test.bf that contains the compiled code of the 'create' test program.

src/codegen.py

@@ -1,4 +1,4 @@
-from error import error
+from error import error, warn
 import math as m
         
 class Variable:
@@ -118,5 +118,47 @@ def generateCode(line: list[str], offset: int) -> str:
                 error()
         returnval += '<[<]' + '<' * (offset-1)
         
+        return returnval
+    elif keyword == 'print':
+        if len(line) != 2:
+            error(f'Print command requires 1 argument (got {len(line)-1})')
+        
+        returnval = '>' * offset + '[>]'
+        varnames = []
+        for var in variables:
+            varnames.append(var.name)
+        
+        if line[1] in varnames:
+            idx = varnames.index(line[1])
+
+            for var in variables[:idx]:
+                if var.bytes >= 0:
+                    returnval += '>' * (var.bytes+1)
+                elif var.bytes == -1:
+                    returnval += '>[>]'
+                else:
+                    error()
+            
+            var = variables[idx]
+            if var.type != 1:
+                error(f'Can\'t print {var.name}: Invalid type')
+            if var.bytes >= 0:
+                returnval += '>' + '.>' * var.bytes + '<' * (var.bytes+1)
+            elif var.bytes == -1:
+                returnval += '>[.>]' + '<[<]'
+            else:
+                error()
+            
+            for var in reversed(variables[:idx]):
+                if var.bytes >= 0:
+                    returnval += '<' * (var.bytes+1)
+                elif var.bytes == -1:
+                    returnval += '<[<]'
+                else:
+                    error()
+            returnval += '<[<]' + '<' * (offset-1)
+        else:
+            error(f'{line[1]} is not a variable')
+        
         return returnval
     error()

src/error.py

@@ -2,4 +2,4 @@ def error(message: str = "This is a bugged error message. Please report this iss
     exit(f"\033[91mError: \033[0m{message}")
     
 def warn(message: str):
-    print(f"\033[33mWarning: {message}")
+    print(f"\033[33mWarning: {message}\033[0m")

tests/create.basm

@@ -1,8 +1,4 @@
-bool var true
+string str1 13 "Hello, world!"
-bool var2 false
+int var 100000
-string str1 -1 "Hell"
+inc str1
-bool var3 true
+print var
-int num1 -1736671613
-int num2 9182364129
-string str2 5 "World!"
-bool var4 true