gnu.jel
Class Parser
java.lang.Object
|
+--gnu.jel.Parser
- public class Parser
- extends java.lang.Object
Field Summary |
protected int |
c
|
int |
ct_column
Column, where the current token started |
int |
ct_line
Line, where the current token started |
int |
type
type of the currect token |
java.lang.Object |
val
value of the current token wrapped into a reflection object |
Constructor Summary |
Parser(java.lang.String in,
Library lib)
Initializes the parser. |
Method Summary |
protected void |
consume(int cc)
|
boolean |
isCast()
|
void |
nextToken()
|
OP |
parse(java.lang.Class resultType)
Parses expression. |
protected int |
read()
Reads character from underlying Reader. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
c
protected int c
ct_column
public int ct_column
- Column, where the current token started
ct_line
public int ct_line
- Line, where the current token started
val
public java.lang.Object val
- value of the current token wrapped into a reflection object
type
public int type
- type of the currect token
Parser
public Parser(java.lang.String in,
Library lib)
- Initializes the parser.
- Parameters:
expr
- expression to parselib
- library to resolve functions in
read
protected int read()
- Reads character from underlying Reader.
Additionally it counts line and column numbers. The read character
is automatically set as a current char of this Tokenizer.
- Returns:
- next character from the selected input.
consume
protected void consume(int cc)
throws CompilationException
nextToken
public void nextToken()
throws CompilationException
isCast
public boolean isCast()
parse
public OP parse(java.lang.Class resultType)
throws CompilationException
- Parses expression.
- Parameters:
resType
- the type to convert the result into- Returns:
- top of the parse tree