Package com.singularsys.jep.configurableparser.matchers

Class StringTokenMatcher2

java.lang.Object
com.singularsys.jep.configurableparser.matchers.StringTokenMatcher2
All Implemented Interfaces:
TokenMatcher, Serializable
public class StringTokenMatcher2 extends Object implements TokenMatcher
Base class for matching quoted strings. This class allows escape characters like \n inside the string, As well as unicode ᨚ and latin \007 escape sequences. Unlike StringTokenMatcher a hand built pattern matcher is used rather than regular expressions.
See Also:

  • Constructor Details

    • StringTokenMatcher2

      public StringTokenMatcher2(char delim, boolean incQuotes)
      Construct a string matcher.
      Parameters:
      delim - The delimiter character typically " or ' or `.
      incQuotes - whether the quote character should be included.

  • Method Details

    • match

      public Token match(String s) throws ParseException
      Description copied from interface: TokenMatcher
      Attempts to match the start of the string. Note new objects should be created each time as error reporting information is later attached to tokens.
      Specified by:
      match in interface TokenMatcher
      Parameters:
      s - the string to match against
      Returns:
      if successful returns the corresponding token, return null if failed to match
      Throws:
      ParseException - on syntax error

    • doubleQuoteStringMatcher

      public static StringTokenMatcher2 doubleQuoteStringMatcher()
      Factory for matching single line double-quoted strings.
      Returns:
      a TokenMatcher

    • singleQuoteStringMatcher

      public static StringTokenMatcher2 singleQuoteStringMatcher()
      Factory for matching single line single quoted strings.
      Returns:
      a TokenMatcher

    • singleQuoteStringMatcher

      public static StringTokenMatcher2 singleQuoteStringMatcher(boolean incQuotes)
      Factory for matching single line single quoted strings.
      Parameters:
      incQuotes - whether the quote character should be returned to the parser.
      Returns:
      a TokenMatcher

    • init

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