org.z3950.zing.cql
Interface CQLTokenizer

All Known Implementing Classes:

CQLLexer

public interface CQLTokenizer

API bridge between the parser and lexer implementation

Author:

jakub

Field Summary

static int	TT_AND
static int	TT_EOF
static int	TT_EQEQ
static int	TT_GE
static int	TT_LE
static int	TT_NE
static int	TT_NOT
static int	TT_NOTHING
static int	TT_OR
static int	TT_PROX
static int	TT_SORTBY
static int	TT_STRING
static int	TT_WORD

Method Summary

void	move() Consume next input token
int	pos()
String	render() Render the type and value of the last consumed token
String	render(int what, boolean quote) Render specified token type
String	value() Return the value of the last consumed token
int	what() Return the type of the last consumed token

Field Detail

TT_EOF

static final int TT_EOF

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Constant Field Values

TT_WORD

static final int TT_WORD

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Constant Field Values

TT_NOTHING

static final int TT_NOTHING

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Constant Field Values

TT_STRING

static final int TT_STRING

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Constant Field Values

TT_LE

static final int TT_LE

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TT_GE

static final int TT_GE

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TT_NE

static final int TT_NE

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TT_EQEQ

static final int TT_EQEQ

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Constant Field Values

TT_AND

static final int TT_AND

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TT_OR

static final int TT_OR

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TT_NOT

static final int TT_NOT

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Constant Field Values

TT_PROX

static final int TT_PROX

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Constant Field Values

TT_SORTBY

static final int TT_SORTBY

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Constant Field Values

Method Detail

move

void move()

Consume next input token

value

String value()

Return the value of the last consumed token

Returns:

value of the token

what

int what()

Return the type of the last consumed token

Returns:

last consumed token

render

String render()

Render the type and value of the last consumed token

Returns:

human-readable string

render

String render(int what,
              boolean quote)

Render specified token type

Parameters:

what - token type

quote - true, if single characters should be quoted for readability

Returns:

human-readable string

pos

int pos()