ComplexMat.jj

/**
 * JavaCC template file created by SF JavaCC plugin 1.5.17+ wizard for JavaCC 1.5.0+
*/



options
{
  static = false;
  DEBUG_PARSER = true;
}

PARSER_BEGIN(NuevoParser)
package uniandes.teolen.parserJavaCC.newParser;

public class NuevoParser
{
  
}

PARSER_END(NuevoParser)

SKIP :
{
  " "
| "\r" 
| "\t"
| "\n"
}

TOKEN : // OPERATORS 
{
  < PLUS : "+" >
| < MINUS : "-" >
| < MULTIPLY : "*" >
| < DIVIDE : "/" >
}

TOKEN :
{ 
   < DIGIT : ["1"-"9"] >
|  < CONSTANT : ("0" | < DIGIT >)+"E"("0" | < DIGIT >)+ >
|  < IM_UNIT : "i">
|  < #LOWER : ["a"-"z"] >
|  < #UPPER : ["A"-"Z"] >
|  < #CHAR : (< LOWER > | < UPPER >) >
|  < VAR : < CHAR > (< CHAR > | "_" | "0" | < DIGIT >)*>
}


int one_line() :
{}
{
  exp() ";"
  {
    return 0;
  }
| ";"
  {
    return 1;
  }
}

void exp() :
{}
{
  term()
  (
    (
      < PLUS >
    | < MINUS >
    )
    term()
  )*
}

void term() :
{}
{
  fact()
  (
    (
      < MULTIPLY >
    | < DIVIDE >
    )
    fact()
  )*
}

void fact() :
{}
{
  (< MINUS >)? (variable() |complex()|"(" exp() ")" | frac() )
}


void frac() :
{}
{
  "<" ( < PLUS > | < MINUS > )? ("0" | < DIGIT >)+ ":" ( < PLUS > | < MINUS > )? < DIGIT >("0" | < DIGIT >)*">"
}

void complex() :
{}
{
   (< CONSTANT > | ("0" | < DIGIT >)+)(","(< CONSTANT > | ("0" | < DIGIT >)+)< IM_UNIT >)?
}

void variable() :
{}
{
   < VAR >(("["exp_non_complex()"]")+)?
}

void exp_non_complex() :
{}
{
  term_non_complex()
  (
    (
      < PLUS >
    | < MINUS >
    )
    term_non_complex()
  )*
}

void term_non_complex() :
{}
{
  fact_non_complex()
  (
    (
      < MULTIPLY >
    | < DIVIDE >
    )
    fact_non_complex()
  )*
}

void fact_non_complex() :
{}
{
  (< MINUS >)? (("0" | < DIGIT >)+ | variable() |"(" exp_non_complex() ")")
}