it.haefelinger.flaka.el
Class EL.MyParser

java.lang.Object
  de.odysseus.el.tree.impl.Parser
      it.haefelinger.flaka.el.EL.MyParser

Enclosing class:

EL

public static class EL.MyParser
extends Parser

Nested Class Summary

Nested classes/interfaces inherited from class de.odysseus.el.tree.impl.Parser

Parser.ExtensionHandler, Parser.ExtensionPoint, Parser.ParseException

Field Summary

protected List<Exception>	errors
protected List<AstNode>	list

Fields inherited from class de.odysseus.el.tree.impl.Parser

context, extensions, scanner

Constructor Summary

EL.MyParser(Builder builder, String expression)

Method Summary

protected Scanner	createScanner(String expression)
protected void	exprref()
protected void	handleEx(Exception e)
Tree	maketree()
protected Tree	maketree(AstNode node, boolean deferred)
protected String	q(String s)
protected void	recover() Recover from a syntax error while inside a EL reference.
protected boolean	sym(Scanner.Symbol s)
protected void	syntaxerror(String expected, int start)
protected void	trytext() Try to read a TEXT node.
protected void	trytoken() A method to consume a plain token.

Methods inherited from class de.odysseus.el.tree.impl.Parser

add, and, cmp, consumeToken, consumeToken, createAstBinary, createAstBracket, createAstChoice, createAstComposite, createAstDot, createAstFunction, createAstIdentifier, createAstMethod, createAstUnary, eq, eval, eval, expr, fail, fail, function, getExtensionHandler, getFunctions, getIdentifiers, getToken, identifier, list, literal, lookahead, mul, nonliteral, or, parseFloat, parseInteger, putExtensionHandler, text, tree, unary, value

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

list

protected List<AstNode> list

errors

protected List<Exception> errors

Constructor Detail

EL.MyParser

public EL.MyParser(Builder builder,
                   String expression)

Method Detail

createScanner

protected Scanner createScanner(String expression)

Overrides:

createScanner in class Parser

sym

protected boolean sym(Scanner.Symbol s)

exprref

protected void exprref()

recover

protected void recover()

Recover from a syntax error while inside a EL reference. To recover from a syntatical error switch scanner into ignoring mode. In this mode, the scanner will simply move forward until character '}' is seen.

q

protected String q(String s)

syntaxerror

protected void syntaxerror(String expected,
                           int start)

maketree

protected Tree maketree(AstNode node,
                        boolean deferred)

trytext

protected void trytext()

Try to read a TEXT node. This method is similar to super.text() except that any exceptions thrown will end up in the list of errors. If current token is TEXT, then appropirate node is created and added to the internal node list. In addition, the next token will be consumed from the stream.

trytoken

protected void trytoken()

A method to consume a plain token. This method is similar to consumeToken. The main difference is that all exceptions thrown are treated as errors (end up in internal error list). This is not the case for ScanExceptions, cause the scanner is not supposed to throw any exceptions at all. Instead the scanner is supposed to create a EOF token in case of problems.

handleEx

protected void handleEx(Exception e)

maketree

public Tree maketree()