Package org.pipservices3.expressions.io

Class StringScanner

java.lang.Object

org.pipservices3.expressions.io.StringScanner

All Implemented Interfaces:

IScanner

public class StringScanner
extends Object
implements IScanner

Field Summary

Fields

Modifier and Type	Field	Description
static int	EOF

Constructor Summary

Constructors

Constructor	Description
StringScanner(String content)	Creates an instance of this class.

Method Summary

Modifier and Type	Method	Description
int	column()	Gets the column in the current line
int	line()	Gets the current line number
int	peek()	Returns the character from the top of the stream without moving the stream pointer.
int	peekColumn()	Gets the next character column number
int	peekLine()	Gets the next character line number
int	read()	Reads character from the top of the stream.
void	reset()	Resets scanner to the initial position
void	unread()	Puts the one character back into the stream stream.
void	unreadMany(int count)	Pushes the specified number of characters to the top of the stream.

Methods inherited from class java.lang.Object

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

Field Detail

EOF

public static final int EOF

See Also:

Constant Field Values

Constructor Detail

StringScanner

public StringScanner(String content)

Creates an instance of this class.

Parameters:

content - A text content to be read.

Method Detail

line

public int line()

Gets the current line number

Specified by:

line in interface IScanner

Returns:

The current line number in the stream

column

public int column()

Gets the column in the current line

Specified by:

column in interface IScanner

Returns:

The column in the current line in the stream

read

public int read()

Reads character from the top of the stream. A read character or -1 if stream processed to the end.

Specified by:

read in interface IScanner

Returns:

A read character or -1 if stream processed to the end.

peek

public int peek()

Returns the character from the top of the stream without moving the stream pointer.

Specified by:

peek in interface IScanner

Returns:

A character from the top of the stream or -1 if stream is empty.

peekLine

public int peekLine()

Gets the next character line number

Specified by:

peekLine in interface IScanner

Returns:

The next character line number in the stream

peekColumn

public int peekColumn()

Gets the next character column number

Specified by:

peekColumn in interface IScanner

Returns:

The next character column number in the stream

unread

public void unread()

Puts the one character back into the stream stream.

Specified by:

unread in interface IScanner

unreadMany

public void unreadMany(int count)

Pushes the specified number of characters to the top of the stream.

Specified by:

unreadMany in interface IScanner

Parameters:

count - A number of characcted to be pushed back.

reset

public void reset()

Resets scanner to the initial position

Specified by:

reset in interface IScanner