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Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference 11g Release 1 (11.1.1.6.0) E13403-07 |
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java.lang.Object oracle.javatools.parser.AbstractLexer oracle.javatools.parser.diff.DiffLexer
public class DiffLexer
The DiffLexer
is an implementation of the
Lexer
interface for a *.diff or *.patch file.
Nested Class Summary |
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Nested classes/interfaces inherited from class oracle.javatools.parser.AbstractLexer |
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AbstractLexer.DefaultLexerToken |
Field Summary |
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Fields inherited from class oracle.javatools.parser.AbstractLexer |
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currentPos, textBuffer |
Fields inherited from interface oracle.javatools.parser.diff.DiffTokens |
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TK_ADDITION, TK_HEADER, TK_REMOVAL |
Fields inherited from interface oracle.javatools.parser.Lexer |
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TK_EOF, TK_NOT_FOUND |
Constructor Summary | |
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DiffLexer()
Constructs a default PropertiesLexer with a starting
position of 0. |
Method Summary | |
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void |
backup()
Unlexes the last found token. |
int |
lex(LexerToken lexedToken)
Scans the text buffer at the current position and returns the token that was found. |
void |
setPosition(int offset)
Sets the current lex (read) position to the given offset in the buffer. |
static java.lang.String |
tokenToString(int token)
Utility routine to map the token to a string representation of the token (for debug printing.) |
static java.lang.String |
tokenToText(int token)
Utility routine to map the token to the original text (if retrievable) of the token (for debug printing.) |
Methods inherited from class oracle.javatools.parser.AbstractLexer |
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createLexerToken, getTextBuffer, setTextBuffer |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public DiffLexer()
PropertiesLexer
with a starting
position of 0. Clients must call setTextBuffer()
to
initialize the text buffer used for the Lexer. To start lexing
from an offset other than 0, call setPosition()
.
Method Detail |
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public int lex(LexerToken lexedToken)
lexedToken
instance passed in to the
call.
lex
in interface Lexer
lex
in class AbstractLexer
lexedToken
- the instance passed in where token info is stored
lexedToken.getToken()
(for convenience)public void backup()
lex()
will return the last token and offset information found.
backup
in interface Lexer
backup
in class AbstractLexer
public void setPosition(int offset)
setPosition
in interface Lexer
setPosition
in class AbstractLexer
offset
- the offset for the next lex()
operation.public static java.lang.String tokenToString(int token)
token
- the token to map
public static java.lang.String tokenToText(int token)
token
- the token to map
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Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference 11g Release 1 (11.1.1.6.0) E13403-07 |
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