NearleyJs de infijo a EVM

Author: Adrián Epifanio Rodríguez Hernández

Gramática empleada:

S -> InitialDo _
InitialDo -> DO StList END
Function -> FUN LP NameList RP Statement END
FunctionCall -> name LP FunctionCallList RP 

NameList -> name
        | NameList COMMA  name 

StList -> Statement
        | StList SEMICOLON Statement

FunctionCallList -> ListElement
        | FunctionCallList COMMA ListElement 

ListElement -> name
        | number
        | string
        | FunctionCall
        | PositionArray
 
Statement -> null                                                 
      | Function                                                  
      | FunctionCall                                              
      | InitialDo                                                 
	  | IF LP ComparisonExpression RP Statement ELSE Statement END  
      | WHILE LP ComparisonExpression RP Statement END              
      | LET name ASSIGNMENT DataType                               
      | name ASSIGNMENT DataType                                   
      | PositionArray                                             
      | name LBRACKET UnaryExpression RBRACKET ASSIGNMENT DataType 

DataType -> Function      
      | AdditiveExpression
      | string            
      | array             
      | PositionArray     
      | FunctionCall      

ComparisonExpression -> AdditiveExpression                       
    |  ComparisonExpression ComparisonOperator AdditiveExpression  

ComparisonOperator -> _ ">"  
    | _ "<"                  
    | _ "=="                 

AdditiveExpression -> MultiplicativeExpression       
    |  AdditiveExpression PM MultiplicativeExpression 

PM -> _ "+"
  | _ "-" 

MultiplicativeExpression -> UnaryExpression        
    |  MultiplicativeExpression MDM UnaryExpression

MDM -> _ "*"
  | _ "/"     

UnaryExpression -> number
    |  name              
    |  string            

array -> LBRACKET ElementArray RBRACKET

ElementArray -> null             
    | DataType                   
    | ElementArray COMMA DataType

PositionArray -> name LBRACKET UnaryExpression RBRACKET 

# Lexical part
name       -> _ /[a-z_][a-z_0-9]*/    
string     -> _ /(?:[^\n\\"]|\\["\\ntbfr])*/
number     -> _ /[0-9]+(?:\.[0-9]+)?/
LP         -> _ "("            
RP         -> _ ")"            
LBRACKET   -> _ "["      
RBRACKET   -> _ "]"      
COMMA      -> _  ","        
SEMICOLON  -> _ ";"    
DO         -> _ "do"         
IF         -> _ "if"         
ELSE       -> _ "else"       
WHILE      -> _ "while"      
FUN        -> _ "function"           
END        -> _ "end"           
LET        -> _ "let"        
ASSIGNMENT -> _ "="    
_          -> /[\s]:*/