Package com.singularsys.jep.parser

Class JccParser

    • Constructor Detail

      • JccParser

        public JccParser​(CharStream stream)
        Constructor with user supplied CharStream.

    • Method Detail

      • restart

        public void restart​(CharStream stream,
                    Jep jep,
                    java.util.ArrayList<java.lang.String> errorList)
        Restart the parse with the given stream.
        Since:
        2.3.0 beta 1

      • continueParse

        public Node continueParse()
                   throws ParseException
        Continue parsing without re-initializing the stream. Allows reentrance of parser so that strings like "x=1; y=2; z=3;" can be parsed. When a semi colon is encountered parsing finishes leaving the rest of the string unparsed. Parsing can be resumed from the current position by using this method. For example 
         XJep j = new XJep();
 Parser parse = j.getParse();
 StringReader sr = new StringReader("x=1; y=2; z=3;");
 parse.restart(sr,j);
 Node node;
 try {
 while((node = j.continueParse())!=null) {
    j.println(node);
 } }catch(ParseException e) {}
        Empty expressions, such as the middle one in "x=1;;y=2" are returned as an ASTStart node, the end of file is returned as null.
        Throws:
        ParseException

      • setInitialTokenManagerState

        public void setInitialTokenManagerState​(int state)
        Sets the initial state that the token manager is in. Can be used to change how x.x is interpreted, either as a single identifier (DEFAULT) or as x <DOT> x (NO_DOT_IN_IDENTIFIERS)
        Parameters:
        state - the state to be in. Currently the only legal values are DEFAULT and NO_DOT_IN_IDENTIFIER

      • ArgumentList

        public final void ArgumentList​(int reqArguments,
                               java.lang.String functionName)
                        throws ParseException
        Throws:
        ParseException

      • ReInit

        public void ReInit​(CharStream stream)
        Reinitialise.

      • getNextToken

        public final Token getNextToken()
        Get the next Token.

      • getToken

        public final Token getToken​(int index)
        Get the specific Token.

      • generateParseException

        public ParseException generateParseException()
        Generate ParseException.

      • enable_tracing

        public final void enable_tracing()
        Enable tracing.

      • disable_tracing

        public final void disable_tracing()
        Disable tracing.