Package org.esa.snap.core.jexp

Interface Parser

public interface Parser
Instances of the Parser interface are used to convert a code string representing an arithmetic expression in a tree of terms which can then be executed by using one of the evaluation methods of the Term class.
Version:
$Revision$ $Date$

  • Method Summary

    Modifier and Type
    Method
    Description
    Namespace
    getDefaultNamespace()
    Gets this parser's default namespace.
    Term
    parse(String code)
    Parses the expression given in the code string.
    Term
    parse(String code, Namespace namespace)
    Parses the expression given in the code string.

  • Method Details

    • getDefaultNamespace

      Namespace getDefaultNamespace()
      Gets this parser's default namespace.
      Returns:
      the default environment used to resolve names.

    • parse

      Term parse(String code) throws ParseException
      Parses the expression given in the code string. Names in the code string are resolved using the default namespace.
      Parameters:
      code - the code string, for the syntax of valid expressions refer to the class description
      Returns:
      the the parsed code as Term
      Throws:
      ParseException - if a parse reportError occurs

    • parse

      Term parse(String code, Namespace namespace) throws ParseException
      Parses the expression given in the code string. Names in the code string are resolved using the given namespace.
      Parameters:
      code - the code string, for the syntax of valid expressions refer to the class description
      namespace - the environment which is used to resolve names
      Returns:
      the the parsed code as Term
      Throws:
      ParseException - if a parse error occurs