coins.ffront
Class Parser

java.lang.Object
  coins.ffront.Parser

public class Parser

extends java.lang.Object

Nested Class Summary

protected static class	Parser.YyCheckClass
protected static class	Parser.YyDefRedClass
protected static class	Parser.YyDgotoClass
static class	Parser.yyException thrown for irrecoverable syntax errors and stack overflow.
protected static class	Parser.YyGindexClass
static interface	Parser.yyInput must be implemented by a scanner object to supply input to the parser.
protected static class	Parser.YyLenClass
protected static class	Parser.YyLhsClass
protected static class	Parser.YyNameClass
protected static class	Parser.YyRindexClass
protected static class	Parser.YySindexClass
protected static class	Parser.YyTableClass

Field Summary

static int	AND
static int	ARITH_IF
static int	ASSIGN
static int	ASSIGN_GOTO
static int	BACKSPACE
static int	BLOCKDATA
static int	CALL
static int	CHAR_CONST
static int	CHARACTER
static int	CLOSE
static int	COMMON
static int	COMP_GOTO
static int	COMPLEX
static int	CONTINUE
static int	DATA
static int	DIMENSION
static int	DO
static int	DOUBLE_CONST
static int	DOUBLE_PREC
static int	DOUBLE_SLASH
static int	ELSE
static int	ELSE_IF
static int	END
static int	END_DO
static int	END_FILE
static int	END_IF
static int	ENTRY
static int	EOS
static int	EQUAL
static int	EQUIVALENCE
static int	EQV
static int	EXTERNAL
static int	FALSE_CONST
(package private) F77Hir	fHir
static int	FORMAT
static int	FORMAT_SPECIFICATION
(package private) F77Sym	fSym
static int	FUNCTION
static int	GOTO
static int	GREATER_OR_EQUAL
static int	GREATER_THAN
static int	IDENT
static int	IF
static int	IMPLICIT
static int	INQUIRE
static int	INT_CONST
static int	INTEGER
static int	INTRINSIC
static int	LABEL
static int	LABEL_DEF
static int	LESS_OR_EQUAL
static int	LESS_THAN
static int	LET
static int	LOGICAL
static int	NEQV
static int	NO_LABEL
static int	NOT
static int	NOT_EQUAL
static int	OPEN
static int	OR
static int	PARAM
static int	PAUSE
static int	POWER
static int	PRINT
static int	PROGRAM
static int	READ
static int	REAL
static int	REAL_CONST
static int	RETURN
static int	REWIND
static int	SAVE
static int	STOP
static int	SUBROUTINE
static int	THEN
static int	TO
static int	TRUE_CONST
static int	UMINUS
static int	UPLUS
static int	WRITE
static int	yyErrorCode
protected static int	yyFinal debugging support, requires the package jay.yydebug.
(package private) Scanner	yyLex
protected int	yyMax initial size and increment of the state/value stack [default 256].

Constructor Summary

Parser(SymRoot sRoot, HirRoot hRoot, IoRoot iRoot, Scanner lexer)

Method Summary

F77Hir	getHir()
protected java.lang.Object	yyDefault(java.lang.Object first) executed at the beginning of a reduce action.
void	yyerror(java.lang.String message) simplified error message.
void	yyerror(java.lang.String message, java.lang.String[] expected) (syntax) error message.
protected java.lang.String[]	yyExpecting(int state) computes list of expected tokens on error by tracing the tables.
java.lang.Object	yyparse(Parser.yyInput yyLex) the generated parser.
java.lang.Object	yyparse(Parser.yyInput yyLex, java.lang.Object yydebug) the generated parser, with debugging messages.

Methods inherited from class java.lang.Object

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

Field Detail

fHir

F77Hir fHir

fSym

F77Sym fSym

yyLex

Scanner yyLex

REAL_CONST

public static final int REAL_CONST

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Constant Field Values

CHAR_CONST

public static final int CHAR_CONST

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INT_CONST

public static final int INT_CONST

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DOUBLE_CONST

public static final int DOUBLE_CONST

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IDENT

public static final int IDENT

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LABEL_DEF

public static final int LABEL_DEF

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LABEL

public static final int LABEL

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EOS

public static final int EOS

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NO_LABEL

public static final int NO_LABEL

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TRUE_CONST

public static final int TRUE_CONST

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FALSE_CONST

public static final int FALSE_CONST

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INTEGER

public static final int INTEGER

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REAL

public static final int REAL

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COMPLEX

public static final int COMPLEX

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DOUBLE_PREC

public static final int DOUBLE_PREC

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LOGICAL

public static final int LOGICAL

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CHARACTER

public static final int CHARACTER

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PARAM

public static final int PARAM

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LET

public static final int LET

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ARITH_IF

public static final int ARITH_IF

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IF

public static final int IF

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ASSIGN

public static final int ASSIGN

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BLOCKDATA

public static final int BLOCKDATA

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CALL

public static final int CALL

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CLOSE

public static final int CLOSE

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COMMON

public static final int COMMON

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CONTINUE

public static final int CONTINUE

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DATA

public static final int DATA

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DIMENSION

public static final int DIMENSION

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DO

public static final int DO

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END_DO

public static final int END_DO

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ELSE

public static final int ELSE

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ELSE_IF

public static final int ELSE_IF

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END

public static final int END

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END_FILE

public static final int END_FILE

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END_IF

public static final int END_IF

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ENTRY

public static final int ENTRY

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EQUIVALENCE

public static final int EQUIVALENCE

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EXTERNAL

public static final int EXTERNAL

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FORMAT

public static final int FORMAT

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FUNCTION

public static final int FUNCTION

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GOTO

public static final int GOTO

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ASSIGN_GOTO

public static final int ASSIGN_GOTO

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COMP_GOTO

public static final int COMP_GOTO

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IMPLICIT

public static final int IMPLICIT

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INTRINSIC

public static final int INTRINSIC

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PAUSE

public static final int PAUSE

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PRINT

public static final int PRINT

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PROGRAM

public static final int PROGRAM

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READ

public static final int READ

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RETURN

public static final int RETURN

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SAVE

public static final int SAVE

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STOP

public static final int STOP

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SUBROUTINE

public static final int SUBROUTINE

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THEN

public static final int THEN

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TO

public static final int TO

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WRITE

public static final int WRITE

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OPEN

public static final int OPEN

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INQUIRE

public static final int INQUIRE

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BACKSPACE

public static final int BACKSPACE

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REWIND

public static final int REWIND

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AND

public static final int AND

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OR

public static final int OR

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NEQV

public static final int NEQV

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EQV

public static final int EQV

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NOT

public static final int NOT

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EQUAL

public static final int EQUAL

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LESS_THAN

public static final int LESS_THAN

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GREATER_THAN

public static final int GREATER_THAN

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LESS_OR_EQUAL

public static final int LESS_OR_EQUAL

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GREATER_OR_EQUAL

public static final int GREATER_OR_EQUAL

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NOT_EQUAL

public static final int NOT_EQUAL

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POWER

public static final int POWER

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DOUBLE_SLASH

public static final int DOUBLE_SLASH

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FORMAT_SPECIFICATION

public static final int FORMAT_SPECIFICATION

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UMINUS

public static final int UMINUS

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UPLUS

public static final int UPLUS

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yyErrorCode

public static final int yyErrorCode

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yyFinal

protected static final int yyFinal

debugging support, requires the package jay.yydebug. Set to null to suppress debugging messages.

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yyMax

protected int yyMax

initial size and increment of the state/value stack [default 256]. This is not final so that it can be overwritten outside of invocations of yyparse().

Constructor Detail

Parser

public Parser(SymRoot sRoot,
              HirRoot hRoot,
              IoRoot iRoot,
              Scanner lexer)

Method Detail

getHir

public F77Hir getHir()

yyerror

public void yyerror(java.lang.String message)

simplified error message.

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yyerror

yyerror

public void yyerror(java.lang.String message,
                    java.lang.String[] expected)

(syntax) error message. Can be overwritten to control message format.

Parameters:

message - text to be displayed.

expected - vector of acceptable tokens, if available.

yyExpecting

protected java.lang.String[] yyExpecting(int state)

computes list of expected tokens on error by tracing the tables.

Parameters:

state - for which to compute the list.

Returns:

list of token names.

yyparse

public java.lang.Object yyparse(Parser.yyInput yyLex,
                                java.lang.Object yydebug)
                         throws java.io.IOException,
                                Parser.yyException

the generated parser, with debugging messages. Maintains a state and a value stack, currently with fixed maximum size.

Parameters:

yyLex - scanner.

yydebug - debug message writer implementing yyDebug, or null.

Returns:

result of the last reduction, if any.

Throws:

Parser.yyException - on irrecoverable parse error.

java.io.IOException

yyDefault

protected java.lang.Object yyDefault(java.lang.Object first)

executed at the beginning of a reduce action. Used as $$ = yyDefault($1), prior to the user-specified action, if any. Can be overwritten to provide deep copy, etc.

Parameters:

first - value for $1, or null.

Returns:

first.

yyparse

public java.lang.Object yyparse(Parser.yyInput yyLex)
                         throws java.io.IOException,
                                Parser.yyException

the generated parser. Maintains a state and a value stack, currently with fixed maximum size.

Parameters:

yyLex - scanner.

Returns:

result of the last reduction, if any.

Throws:

Parser.yyException - on irrecoverable parse error.

java.io.IOException