Implement proper whitespace functionality. Implement single line and multi line comments

grammar/core/base_types.bnf

@@ -9,4 +9,4 @@
                    | <error_type>
                    | "Any"
 
-<return_type_list> ::= "[" <type> ("," <type>)* "]" | <callable_type_keyword>
+<return_type_list> ::= "[" <optional_whitespace> <type> ( <optional_whitespace> "," <optional_whitespace> <type>)* <optional_whitespace> "]" | <callable_type_keyword>

grammar/core/comments.bnf

@@ -0,0 +1,11 @@
+<comment> ::= <single_line_comment> | <multi_line_comment>
+
+<single_line_comment> ::= <single_line_comment_identifier> <single_line_comment_character>* <multi_line_whitespace>
+
+<multi_line_comment> ::= <multi_line_comment_open_identifier>
+                         (<multi_line_comment_character> | <multi_line_comment>)*
+                         <multi_line_comment_close_identifier>
+
+<single_line_comment_character> ::= <letter> | <digit> | <symbol> | <single_line_whitespace>
+
+<multi_line_comment_character> ::= <letter> | <digit> | <symbol> | <multi_line_whitespace>

grammar/core/identifiers.bnf

@@ -16,5 +16,12 @@
 
 <symbol> ::= "!" | "@" | "#" | "$" | "%" | "^" | "&" | "*" | "(" | ")" | "-" | "_" | "+" | "=" | "[" | "]" | "{" | "}" | "|" | "\" | ":" | ";" | "<" | ">" | "," | "." | "?" | "/"
 
-<whitespace> ::= " " | "\t" | "\n" | "\r"
+<whitespace> ::= <single_line_whitespace> | <multi_line_whitespace> | <comment>
 
+<single_line_whitespace> ::= " " | "\t"
+
+<multi_line_whitespace> ::= "\n" | "\r"
+
+<optional_whitespace> ::= <whitespace>*
+
+<optional_single_line_whitespace ::= (<single_line_whitespace> | <comment>)*

grammar/core/keywords.bnf

@@ -2,6 +2,12 @@
 
 <arrow_keyword> ::= "->"
 
+<single_line_comment_identifier> ::= "//"
+
+<multi_line_comment_open_identifier> ::= "/*"
+
+<multi_line_comment_close_identifier> ::= "*/"
+
 <string_type_keyword> ::= "String"
 
 <integer_type_keyword> ::= "Integer"

grammar/declarations/function_declarations.bnf

@@ -1,7 +1,16 @@
-<function_declaration> ::= <accessibility_modifier> <function_keyword> <identifier>
+<function_declaration> ::= <optional_whitespace>
+                           <accessibility_modifier>
+                           <function_keyword>
+                           <optional_whitespace>
+                           <identifier>
+                           <optional_whitespace>
                            <function_signature>
-    (<function_error_identifier> <error_type_list>)?
+                           <optional_whitespace>
-    "{" <statement>* "}"
+                           "{"
+                           <optional_whitespace>
+                           <statement>*
+                           <optional_whitespace>
+                           "}"
 
 <function_signature> ::= "(" <parameter_list>? ")" 
     <arrow_keyword> <return_type_list>
@@ -10,26 +19,28 @@
 
 <error_type> ::= <identifier> ("/" <identifier>)?
 
-<parameter_list> ::=
+<parameter_list> ::= <parameter_group>?
-    <parameter_group>?
 
-<parameter_group> ::=
+<parameter_group> ::= <optional_whitespace>
-    <required_parameters>
+    ( <required_parameters>
     | <required_parameters> "," <default_parameters>
-    | <default_parameters>
+    | <default_parameters> )
+    <optional_whitespace>
 
 <required_parameters> ::=
-    <required_parameter>
+    <optional_whitespace>
-    | <required_parameter> "," <required_parameters>
+    ( <required_parameter>
+    | <required_parameter> "," <optional_whitespace> <required_parameters> )
 
 <default_parameters> ::=
-    <default_parameter>
+    <optional_whitespace>
-    | <default_parameter> "," <default_parameters>
+    ( <default_parameter>
+    | <default_parameter> "," <default_parameters> )
 
 <required_parameter> ::= <parameter_type> <identifier>
 
 <default_parameter> ::= <parameter_type> <identifier> ".default(" <literal> ")"
 
-<lambda_declaration> ::= <function_keyword> "(" <parameter_list>? ")"
+<lambda_declaration> ::= <function_keyword> <optional_whitespace> "(" <parameter_list>? ")"
-    <arrow_keyword> "[" <type> "]"
+    <arrow_keyword> <optional_whitespace> "[" <optional_whitespace> <type> <optional_whitespace> "]"
-    "{" <statement>* "}"
+    "{" <optional_whitespace> <statement>* <optional_whitespace> "}"

grammar/declarations/type_declarations.bnf

@@ -1,12 +1,21 @@
 <type_declaration> ::= <inherited_type>
+                       <optional_whitespace>
                        <interface_implementation>?
-    "{" <class_body> "}"
+                       <optional_whitespace>
+                       "{"
+                       <optional_whitespace>
+                       <class_body>
+                       <optional_whitespace>
+                       "}"
 
-<class_body> ::= (<variable_declaration> 
+<class_body> ::= <optional_whitespace>
+                 (<variable_declaration>
                  | <constant_declaration>
                  | <function_declaration>
                  | <constructor_declaration>
-                | <destructor_declaration>)*
+                 | <destructor_declaration>
+                 | <optional_whitespace>)*
+                 <optional_whitespace>
 
 <inherited_type> ::= (<parent> "/")? <child>
 
@@ -16,8 +25,13 @@
 
 <type_parameter_list> ::= <identifier> ("," <identifier>)*
 
-<variable_declaration> ::= <type> <identifier> 
+<variable_declaration> ::= <optional_whitespace>
-    (".set(" <expression> ")")? ";"
+                           <type>
+                           <optional_whitespace>
+                           <identifier>
+                           (".set(" <optional_whitespace> <expression> <optional_whitespace> ")")?
+                           <optional_whitespace>
+                           ";"
 
 <constant_declaration> ::= <type> <identifier> ".define(" <literal> ");"
 

grammar/main.bnf

@@ -1,13 +1,21 @@
-<program> ::= <use_statement>* <top_level_definition>*
+<program> ::= <use_statement>*
+              <optional_whitespace>
+              <top_level_definition>*
+              <optional_whitespace>
 
-<use_statement> ::= <use_statement_identifier> <identifier> ("." <identifier>)* ";"
+<use_statement> ::= <use_statement_identifier>
+                    <optional_whitespace>
+                    <identifier>
+                    ("." <identifier>)*
+                    <optional_whitespace> ";"
 
-<top_level_definition> ::=
+<top_level_definition> ::= (<type_declaration>
-    <type_declaration>
                            | <interface_declaration>
-    | <error_declaration>
+                           | <error_declaration>)
+                           <optional_whitespace>
 
 import "core/keywords.bnf"
+import "core/comments.bnf"
 import "core/base_types.bnf"
 import "core/identifiers.bnf"
 import "core/literals.bnf"

grammar/operations/control_flow.bnf

@@ -9,12 +9,45 @@
               | <attempt_statement>
               | <fail_statement>
 
+<statement> ::= <optional_whitespace>
+                (<assignment_statement>
+                  | <if_statement>
+                  | <while_statement>
+                  | <loop_statement>
+                  | <reverse_loop_statement>
+                  | <function_call_statement>
+                  | <return_statement>
+                  | <using_statement>
+                  | <attempt_statement>
+                  | <fail_statement>)
+                <optional_whitespace>
+
 <assignment_statement> ::= <my_identifier> ".set(" <expression> ")" ";"
 
-<if_statement> ::= <if_statement_keyword> "(" <boolean_expression> ")"
+<if_statement> ::= <if_statement_keyword>
+                    <optional_whitespace>
+                    "("
+                    <optional_whitespace>
+                    <boolean_expression>
+                    <optional_whitespace> ")"
                     "{" <statement>* "}"
-    (<elseif_statement_keyword> "(" <boolean_expression> ")" "{" <statement>* "}")?
+                    (<elseif_statement_keyword>
-    (<else_statement_keyword> "{" <statement>* "}")?
+                    <optional_whitespace>
+                    "("
+                    <optional_whitespace>
+                    <boolean_expression>
+                    <optional_whitespace>
+                    ")"
+                    "{"
+                    <statement>*
+                    "}"
+                    )?
+                    (<else_statement_keyword>
+                    <optional_whitespace>
+                    "{"
+                    <statement>*
+                    "}"
+                    )?
 
 <while_statement> ::= <while_loop_keyword> "(" <expression> ")"
     "{" <statement>* "}"

grammar/operations/expressions.bnf

@@ -1,14 +1,20 @@
-<expression> ::= <my_identifier>
+<expression> ::= <optional_whitespace>
+                (
+                    <my_identifier>
                    | <literal>
                    | <object_method_call>
                    | <constant_declaration>
                    | <type_conversion_expression>
                    | "(" <expression> ")"
                    | <lambda_declaration>
+                )
+                <optional_whitespace>
 
-<type_conversion_expression> ::= <my_identifier> ".as(" <type> ")"
+<type_conversion_expression> ::= <my_identifier> ".as(" <optional_whitespace> <type> <optional_whitespace> ")"
 
 <boolean_expression> ::=
+    <optional_whitespace>
+    (
     <boolean_literal>
     | "(" <boolean_expression> ")"
     | <my_identifier> ".eq(" <expression> ")"
@@ -29,4 +35,6 @@
     | <boolean_type_keyword> ".lt(" <boolean_expression> "," <boolean_expression> ")"
     | <boolean_type_keyword> ".gte(" <boolean_expression> "," <boolean_expression> ")"
     | <boolean_type_keyword> ".lte(" <boolean_expression> "," <boolean_expression> ")"
+    )
+    <optional_whitespace>