fix all annoying bugs + alpha !!!

* Better error messages (it's been a long time 🤣 )
* Does not crash when error in multiple line statements

example.noug

@@ -1,4 +1,4 @@
-# This file was made in nougaro-prototype-1 version.
+# This file was made in nougaro alpha 0.1 version.
 
 # This is a comment
 # Basics :
@@ -11,12 +11,12 @@ print(3-4)
 print(2*3)
 print(6/2)
 print(3^2)
-print(|-5|)
+print(abs(-5))
 
 # Variables
-var sometext = "Hello, world!"
+var some_text = "Hello, world!"
 var a = var b = 3
-print(sometext); print(a * b)
+print(some_text); print(a * b)
 print(noug_version)
 print(None)
 
@@ -25,7 +25,7 @@ print("this is a string quoted by \".")
 print("You can put\nbacklines and\n\ttabs.")
 print("You can add \\ backslashes and \" \' quotes")
 
-print("You can additionate and multiply strings : " + 3*sometext)
+print("You can add up and multiply strings: " + 3*some_text)
 
 # Tests
 var name = input("Whats your name? ")
@@ -67,7 +67,7 @@ def fib(n)
 	end
 end
 
-print(fib(input_int("Enter number:")))
+print(fib(input_int("Enter number: ")))
 
 var a = def()->print("Hello, world!")
 a()

shell.py

@@ -43,7 +43,7 @@
 
 with open("version.json") as ver_json:
     ver_json_loaded = json.load(ver_json)
-    version = ver_json_loaded.get("noug_version")
+    version = ver_json_loaded.get("phase") + " " + ver_json_loaded.get("noug_version")
 
 if path == "<stdin>":
     print(f"Welcome to Nougaro {version}! Contribute : https://github.com/jd-develop/nougaro/")

src/nodes.py

@@ -222,7 +222,7 @@ def __init__(self, node_to_call, arg_nodes: list):
             self.pos_end = self.node_to_call.pos_end
 
     def __repr__(self):
-        return f'(call:{self.node_to_call})'
+        return f'(call:{self.node_to_call}, arg_nodes:{self.arg_nodes})'
 
 
 class ReturnNode:

src/nougaro.py

@@ -27,7 +27,7 @@
 
 with open("version.json") as ver_json:
     ver_json_loaded = json.load(ver_json)
-    version_ = ver_json_loaded.get("noug_version")
+    version_ = ver_json_loaded.get("phase") + " " + ver_json_loaded.get("noug_version")
 
 
 # ##########

src/parser.py

@@ -10,7 +10,7 @@
 from src.parse_result import ParseResult
 from src.nodes import *  # src.tokens.Token is imported in src.nodes
 # built-in python imports
-# no imports
+from typing import Any, Union
 
 
 # ##########
@@ -53,7 +53,9 @@ def update_current_token(self):
 
     # GRAMMARS ATOMS (AST) :
 
-    def statements(self):
+    def statements(self, stop: list[Union[tuple[str, Any], str]] = None) -> ParseResult:
+        if stop is None:
+            stop = [TT_EOF]
         result = ParseResult()
         statements = []
         pos_start = self.current_token.pos_start.copy()
@@ -81,13 +83,20 @@ def statements(self):
             if newline_count == 0:
                 more_statements = False
 
-            if not more_statements:
+            have_to_break = False
+            for e in stop:
+                if isinstance(e, tuple):
+                    if not more_statements or self.current_token.matches(*e):
+                        have_to_break = True
+                else:
+                    if not more_statements or self.current_token.type == e:
+                        have_to_break = True
+            if have_to_break:
                 break
-            statement = result.try_register(self.statement())
-            if statement is None:
-                self.reverse(result.to_reverse_count)
-                more_statements = False
-                continue
+
+            statement = result.register(self.statement())
+            if result.error is not None:
+                return result
             statements.append(statement)
 
         return result.success(ListNode(
@@ -450,7 +459,7 @@ def if_expr_c(self):
                 result.register_advancement()
                 self.advance()
 
-                statements = result.register(self.statements())
+                statements = result.register(self.statements(stop=[(TT_KEYWORD, 'end')]))
                 if result.error is not None:
                     return result
                 else_case = (statements, True)
@@ -517,7 +526,8 @@ def if_expr_cases(self, case_keyword):
             result.register_advancement()
             self.advance()
 
-            statements = result.register(self.statements())
+            statements = result.register(self.statements(stop=[(TT_KEYWORD, 'elif'), (TT_KEYWORD, 'else'),
+                                                               (TT_KEYWORD, 'end')]))
             if result.error is not None:
                 return result
             cases.append((condition, statements, True))
@@ -592,7 +602,7 @@ def for_expr(self):
                 result.register_advancement()
                 self.advance()
 
-                body = result.register(self.statements())
+                body = result.register(self.statements(stop=[(TT_KEYWORD, 'end')]))
                 if result.error is not None:
                     return result
 
@@ -662,7 +672,7 @@ def for_expr(self):
             result.register_advancement()
             self.advance()
 
-            body = result.register(self.statements())
+            body = result.register(self.statements(stop=[(TT_KEYWORD, 'end')]))
             if result.error is not None:
                 return result
 
@@ -708,7 +718,7 @@ def while_expr(self):
             result.register_advancement()
             self.advance()
 
-            body = result.register(self.statements())
+            body = result.register(self.statements(stop=[(TT_KEYWORD, 'end')]))
             if result.error is not None:
                 return result
 
@@ -844,7 +854,7 @@ def func_def(self):
         result.register_advancement()
         self.advance()
 
-        body = result.register(self.statements())
+        body = result.register(self.statements(stop=[(TT_KEYWORD, 'end')]))
         if result.error is not None:
             return result
 

src/position.py

@@ -27,5 +27,8 @@ def advance(self, current_char=None):
 
         return self
 
+    def __repr__(self):
+        return f"Position at index {self.index} line {self.line_number} colon {self.colon}, in file {self.file_name}."
+
     def copy(self):
         return Position(self.index, self.line_number, self.colon, self.file_name, self.file_txt)

src/tokens.py

@@ -18,7 +18,7 @@ def __init__(self, type_, value=None, pos_start=None, pos_end=None):
             self.pos_end = pos_start.copy()
             self.pos_end.advance()
         if pos_end is not None:
-            self.pos_end = pos_end
+            self.pos_end = pos_end.copy()
 
     def __repr__(self) -> str:
         if self.value:

version.json

@@ -1,4 +1,5 @@
 {
-    "noug_version": "prototype-2",
+    "noug_version": "0.1",
+    "phase": "alpha",
     "inherit": true
 }