Package java_cup
Class terminal
- java.lang.Object
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- java_cup.symbol
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- java_cup.terminal
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public class terminal extends symbol
This class represents a terminal symbol in the grammar. Each terminal has a textual name, an index, and a string which indicates the type of object it will be implemented with at runtime (i.e. the class of object that will be returned by the scanner and pushed on the parse stack to represent it).
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Field Summary
Fields Modifier and Type Field Description protected static java.util.Hashtable
_all
Table of all terminals.protected static java.util.Hashtable
_all_by_index
Table of all terminals indexed by their index number.static terminal
EOF
Special terminal for end of input.static terminal
error
special terminal used for error recoveryprotected static int
next_index
Static counter to assign unique index.-
Fields inherited from class java_cup.symbol
_index, _name, _stack_type, _use_count
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static java.util.Enumeration
all()
Access to all terminals.static terminal
find(int indx)
Lookup a terminal by index.static terminal
find(java.lang.String with_name)
Lookup a terminal by name string.boolean
is_non_term()
Report this symbol as not being a non-terminal.static int
number()
Total number of terminals.java.lang.String
toString()
Convert to a string.
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Field Detail
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_all
protected static java.util.Hashtable _all
Table of all terminals. Elements are stored using name strings as the key
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_all_by_index
protected static java.util.Hashtable _all_by_index
Table of all terminals indexed by their index number.
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next_index
protected static int next_index
Static counter to assign unique index.
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EOF
public static final terminal EOF
Special terminal for end of input.
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error
public static final terminal error
special terminal used for error recovery
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Method Detail
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all
public static java.util.Enumeration all()
Access to all terminals.
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find
public static terminal find(java.lang.String with_name)
Lookup a terminal by name string.
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find
public static terminal find(int indx)
Lookup a terminal by index.
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number
public static int number()
Total number of terminals.
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is_non_term
public boolean is_non_term()
Report this symbol as not being a non-terminal.- Specified by:
is_non_term
in classsymbol
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