tarau.jinni
Class Lexer

java.lang.Object
  |
  +--java.io.StreamTokenizer
        |
        +--tarau.jinni.Lexer

Direct Known Subclasses:

Parser

class Lexer

extends java.io.StreamTokenizer

Lexicographic analyser reading from a stream

Field Summary

private static java.lang.String	anonymous
(package private) HashDict	dict
private boolean	inClause
protected java.io.Reader	input

Fields inherited from class java.io.StreamTokenizer

buf, CT_ALPHA, CT_COMMENT, CT_DIGIT, CT_QUOTE, CT_WHITESPACE, ctype, eolIsSignificantP, forceLower, input, LINENO, NEED_CHAR, nval, peekc, pushedBack, reader, SKIP_LF, slashSlashCommentsP, slashStarCommentsP, sval, TT_EOF, TT_EOL, TT_NOTHING, TT_NUMBER, TT_WORD, ttype

Constructor Summary

Lexer()

Lexer(java.io.Reader I)

Lexer(java.lang.String s)
String based constructor.

Lexer(java.lang.String path, java.lang.String s)
Path+File name based constructor Used in prolog2java

Method Summary

(package private) boolean	atEOC()
(package private) boolean	atEOF()
private static java.lang.String	char2string(int c)
private Term	getWord(boolean quoted)
protected static Term	make_const(java.lang.String s)
private static Term	make_fun(java.lang.String s)
private static Term	make_int(double n)
private static Term	make_number(double nval)
private static Term	make_real(double n)
private Term	make_var(java.lang.String s)
protected Term	next()
private void	whitespaceChar(char c)
private void	wordChar(char c)

Methods inherited from class java.io.StreamTokenizer

commentChar, eolIsSignificant, lineno, lowerCaseMode, nextToken, ordinaryChar, ordinaryChars, parseNumbers, pushBack, quoteChar, read, resetSyntax, slashSlashComments, slashStarComments, toString, whitespaceChars, wordChars

Methods inherited from class java.lang.Object

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

Field Detail

input

protected java.io.Reader input

anonymous

private static final java.lang.String anonymous

inClause

private boolean inClause

dict

HashDict dict

Constructor Detail

Lexer

public Lexer(java.io.Reader I)
      throws java.io.IOException

Lexer

public Lexer(java.lang.String path,
             java.lang.String s)
      throws java.io.IOException

Path+File name based constructor Used in prolog2java

Lexer

public Lexer(java.lang.String s)
      throws java.lang.Exception

String based constructor. Used in queries ended by \n + prolog2java.

Lexer

public Lexer()
      throws java.io.IOException

Method Detail

char2string

private static final java.lang.String char2string(int c)

atEOF

boolean atEOF()

atEOC

boolean atEOC()

make_const

protected static final Term make_const(java.lang.String s)

make_fun

private static final Term make_fun(java.lang.String s)

make_int

private static final Term make_int(double n)

make_real

private static final Term make_real(double n)

make_number

private static final Term make_number(double nval)

make_var

private final Term make_var(java.lang.String s)

whitespaceChar

private final void whitespaceChar(char c)

wordChar

private final void wordChar(char c)

getWord

private Term getWord(boolean quoted)
              throws java.io.IOException

next

protected Term next()
             throws java.io.IOException