Class Parser
java.lang.Object
java_cup.runtime.lr_parser
weka.core.expressionlanguage.parser.Parser
public class Parser
extends java_cup.runtime.lr_parser
CUP v0.11b 20160615 (GIT 4ac7450) generated parser.
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Field Summary
Fields inherited from class java_cup.runtime.lr_parser
symbolFactory -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionshort[][]Access to parse-action table.java_cup.runtime.SymbolInvoke a user supplied parse action.intEOF_sym()EOFSymbol index.interrorSymbol index.getRoot()Returns the root node of the programfinal Classstatic Nodeparse(String expr, VariableDeclarations variables, MacroDeclarations macros) Tries to parse and compile a program from the textual representation in expr while exposing the variables and marcosshort[][]Access to production table.short[][]Access toreduce_gototable.voidsetMacros(MacroDeclarations macros) Sets the macro declarations for the programvoidsetVariables(VariableDeclarations variables) Sets the variable declarations for the programintIndicates start production.intIndicates start state.voidunrecovered_syntax_error(java_cup.runtime.Symbol token) Methods inherited from class java_cup.runtime.lr_parser
debug_message, debug_parse, debug_reduce, debug_shift, debug_stack, done_parsing, dump_stack, expected_token_ids, getScanner, getSymbolFactory, parse, report_error, report_fatal_error, scan, setScanner, symbl_name_from_id, syntax_error, user_init
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Constructor Details
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Parser
Deprecated.Default constructor. -
Parser
Deprecated.Constructor which sets the default scanner. -
Parser
public Parser(java_cup.runtime.Scanner s, java_cup.runtime.SymbolFactory sf) Constructor which sets the default scanner.
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Method Details
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getSymbolContainer
- Overrides:
getSymbolContainerin classjava_cup.runtime.lr_parser
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production_table
public short[][] production_table()Access to production table.- Specified by:
production_tablein classjava_cup.runtime.lr_parser
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action_table
public short[][] action_table()Access to parse-action table.- Specified by:
action_tablein classjava_cup.runtime.lr_parser
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reduce_table
public short[][] reduce_table()Access toreduce_gototable.- Specified by:
reduce_tablein classjava_cup.runtime.lr_parser
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do_action
public java_cup.runtime.Symbol do_action(int act_num, java_cup.runtime.lr_parser parser, Stack stack, int top) throws Exception Invoke a user supplied parse action.- Specified by:
do_actionin classjava_cup.runtime.lr_parser- Throws:
Exception
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start_state
public int start_state()Indicates start state.- Specified by:
start_statein classjava_cup.runtime.lr_parser
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start_production
public int start_production()Indicates start production.- Specified by:
start_productionin classjava_cup.runtime.lr_parser
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EOF_sym
public int EOF_sym()EOFSymbol index.- Specified by:
EOF_symin classjava_cup.runtime.lr_parser
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error_sym
public int error_sym()errorSymbol index.- Specified by:
error_symin classjava_cup.runtime.lr_parser
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setVariables
Sets the variable declarations for the program- Parameters:
variables- the variables that should be exposed to the program
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setMacros
Sets the macro declarations for the program- Parameters:
macros- the macros that should be exposed to the program
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getRoot
Returns the root node of the program- Returns:
- the root node
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parse
public static Node parse(String expr, VariableDeclarations variables, MacroDeclarations macros) throws Exception Tries to parse and compile a program from the textual representation in expr while exposing the variables and marcos- Parameters:
expr- the expression to be compiled in textual formvariables- the variables exposed to the programmacros- the macros exposed to the program- Returns:
- the root node of the compiled program
- Throws:
Exception- if an error occurs during compilation
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unrecovered_syntax_error
- Overrides:
unrecovered_syntax_errorin classjava_cup.runtime.lr_parser- Throws:
SyntaxException
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