org.codehaus.swizzle.stream
Class StreamLexer
java.lang.Object
org.codehaus.swizzle.stream.StreamLexer
public class StreamLexer
- extends java.lang.Object
- Version:
- $Revision$ $Date$
Constructor Summary |
StreamLexer(java.io.InputStream delegate)
|
Method Summary |
StreamLexer |
mark()
|
StreamLexer |
mark(java.lang.String limit)
|
java.lang.String |
peek(java.lang.String string)
|
java.lang.String |
peek(java.lang.String begin,
java.lang.String end)
|
java.lang.String |
read(java.lang.String string)
|
java.lang.String |
read(java.lang.String begin,
java.lang.String end)
|
boolean |
readAndMark(java.lang.String begin,
java.lang.String end)
|
boolean |
readAndUnmark()
|
java.lang.String |
readToken(java.lang.String string)
Seeks in the stream till it finds and has completely read the token, then stops. |
java.lang.String |
readToken(java.lang.String begin,
java.lang.String end)
Seeks in the stream till it finds the start token, reads into a buffer till it finds the end token, then returns the token (the buffer) as a String. |
java.lang.String |
seek(java.lang.String string)
|
java.lang.String |
seek(java.lang.String begin,
java.lang.String end)
|
boolean |
seekAndMark(java.lang.String begin,
java.lang.String end)
|
boolean |
seekAndUnmark()
|
void |
unmark()
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
StreamLexer
public StreamLexer(java.io.InputStream delegate)
readToken
public java.lang.String readToken(java.lang.String begin,
java.lang.String end)
throws java.lang.Exception
- Seeks in the stream till it finds the start token, reads into a buffer till it finds the end token, then returns the token (the buffer) as a String.
Given the input stream contained the sequence "123ABC456EFG"
InputStream in ... StreamLexer lexer = new StreamLexer(in); String token = lexer.readToken("3","C"); // returns the string "AB" char character = (char)in.read(); // returns the character '4'
Does not support regular expression matching.
- Parameters:
begin
- start tokenend
- end token
- Returns:
- the token inbetween the start and end token or null if the end of the stream was reached
- Throws:
java.lang.Exception
readToken
public java.lang.String readToken(java.lang.String string)
throws java.lang.Exception
- Seeks in the stream till it finds and has completely read the token, then stops. Useful for seeking up to a certain point in the stream.
Given the input stream contained the sequence "000[A]111[B]222[C]345[D]"
InputStream in ... StreamLexer lexer = new StreamLexer(in); String token = lexer.readToken("222"); // returns the string "222" token = lexer.readToken("[", "]"); // returns the string "C" char
character = (char)in.read(); // returns the character '3'
Does not support regular expression matching.
- Parameters:
string
- the token to find in the stream
- Returns:
- the token if found in the stream or null if the stream was reached (i.e. the token was not found)
- Throws:
java.lang.Exception
read
public java.lang.String read(java.lang.String begin,
java.lang.String end)
throws java.io.IOException
- Throws:
java.io.IOException
read
public java.lang.String read(java.lang.String string)
throws java.io.IOException
- Throws:
java.io.IOException
seek
public java.lang.String seek(java.lang.String begin,
java.lang.String end)
throws java.io.IOException
- Throws:
java.io.IOException
seek
public java.lang.String seek(java.lang.String string)
throws java.io.IOException
- Throws:
java.io.IOException
peek
public java.lang.String peek(java.lang.String begin,
java.lang.String end)
throws java.io.IOException
- Throws:
java.io.IOException
peek
public java.lang.String peek(java.lang.String string)
throws java.io.IOException
- Throws:
java.io.IOException
mark
public StreamLexer mark()
throws java.io.IOException
- Throws:
java.io.IOException
unmark
public void unmark()
mark
public StreamLexer mark(java.lang.String limit)
throws java.io.IOException
- Throws:
java.io.IOException
readAndMark
public boolean readAndMark(java.lang.String begin,
java.lang.String end)
throws java.io.IOException
- Throws:
java.io.IOException
seekAndMark
public boolean seekAndMark(java.lang.String begin,
java.lang.String end)
throws java.io.IOException
- Throws:
java.io.IOException
readAndUnmark
public boolean readAndUnmark()
throws java.io.IOException
- Throws:
java.io.IOException
seekAndUnmark
public boolean seekAndUnmark()
throws java.io.IOException
- Throws:
java.io.IOException
Copyright © 2011 The Codehaus Foundation. All Rights Reserved.