Class MathExpParser

src/org/opensourcephysics/numerics/MathExpParser.java:13–51

MathExpParser defines an abstract super class for mathematical expression parsers.

 * MathExpParser defines an abstract super class for mathematical expression parsers.
 */
public abstract class MathExpParser implements Function, MultiVarFunction {
  /** No error. */
  public static final int NO_ERROR = 0;

  /**  Syntax error. */
  public static final int SYNTAX_ERROR = 1;

  /**
   * Parses the function string using existing variable names.
   *
   * @param funcStr the function to be parsed
   */
  public abstract void setFunction(String funcStr) throws ParserException;

  /**
   * Parses the function string using existing variable names.
   *
   * @param funcStr the function to be parsed
   * @param vars the function's variables
   */
  public abstract void setFunction(String funcStr, String[] vars) throws ParserException;

  /**
   * Gets the function string.
   */
  public abstract String getFunction();

  public static MathExpParser createParser() {
    return new SuryonoParser(0);
  }

  /**
   * Returns names of functions recognized by the parser.
   *
   * @return array of function names
   */
  public abstract String[] getFunctionNames();

}

/*
 * Open Source Physics software is free software; you can redistribute