Package com.singularsys.jep.configurableparser.matchers

Class StringTokenMatcher

java.lang.Object
com.singularsys.jep.configurableparser.matchers.RegExpTokenMatcher
com.singularsys.jep.configurableparser.matchers.StringTokenMatcher
All Implemented Interfaces:
TokenBuilder, TokenMatcher, Serializable
public class StringTokenMatcher extends RegExpTokenMatcher
Base class for matching quoted strings. This class uses regular expressions but does not work well with escaped character inside the string. See StringTokenMatcher2 for a matcher which works with escape character like \' \" and \n.
See Also:

  • Constructor Details

    • StringTokenMatcher

      public StringTokenMatcher(Pattern pattern, char delim)
      A StringTokenMatcher with a given regular expression pattern.
      Parameters:
      pattern - regular expression pattern to use
      delim - the delimiter character marking start and end of the string.

  • Method Details

    • match

      public Token match(String s)
      Description copied from class: RegExpTokenMatcher
      Attempts to match the start of the string.
      Specified by:
      match in interface TokenMatcher
      Overrides:
      match in class RegExpTokenMatcher
      Parameters:
      s - the string to match against
      Returns:
      if successful returns the corresponding token, return null if failed to match

    • doubleQuoteStringMatcher

      public static StringTokenMatcher doubleQuoteStringMatcher()
      Factory for matching single line double-quoted strings.
      Returns:
      a TokenMatcher

    • singleQuoteStringMatcher

      public static StringTokenMatcher singleQuoteStringMatcher()
      Factory for matching single line single quoted strings.
      Returns:
      a TokenMatcher

    • buildToken

      public Token buildToken(String s)
      Description copied from class: RegExpTokenMatcher
      Builds a token following a successful match. Note new objects should be created each time as error reporting information is later attached to tokens.
      Specified by:
      buildToken in interface TokenBuilder
      Specified by:
      buildToken in class RegExpTokenMatcher
      Parameters:
      s - String representing the completed matched token
      Returns:
      the appropriate type of token.

    • init

      public void init(Jep j)
      Description copied from interface: TokenMatcher
      Initialize the matcher when the Jep instance is known.
      Parameters:
      j - Jep instance