public class Scanner
extends java.lang.Object
implements java_cup.runtime.Scanner
| Modifier and Type | Field and Description |
|---|---|
static int |
STRING1 |
static int |
STRING2 |
static int |
YYEOF
This character denotes the end of file
|
static int |
YYINITIAL
lexical states
|
| Constructor and Description |
|---|
Scanner(java.io.Reader in)
Creates a new scanner
|
| Modifier and Type | Method and Description |
|---|---|
java_cup.runtime.Symbol |
next_token()
Resumes scanning until the next regular expression is matched,
the end of input is encountered or an I/O-Error occurs.
|
void |
yybegin(int newState)
Enters a new lexical state
|
char |
yycharat(int pos)
Returns the character at position pos from the
matched text.
|
void |
yyclose()
Closes the input stream.
|
int |
yylength()
Returns the length of the matched text region.
|
void |
yypushback(int number)
Pushes the specified amount of characters back into the input stream.
|
void |
yyreset(java.io.Reader reader)
Resets the scanner to read from a new input stream.
|
int |
yystate()
Returns the current lexical state.
|
java.lang.String |
yytext()
Returns the text matched by the current regular expression.
|
public static final int YYEOF
public static final int YYINITIAL
public static final int STRING1
public static final int STRING2
public Scanner(java.io.Reader in)
in - the java.io.Reader to read input from.public final void yyclose()
throws java.io.IOException
java.io.IOExceptionpublic final void yyreset(java.io.Reader reader)
reader - the new input streampublic final int yystate()
public final void yybegin(int newState)
newState - the new lexical statepublic final java.lang.String yytext()
public final char yycharat(int pos)
pos - the position of the character to fetch.
A value from 0 to yylength()-1.public final int yylength()
public void yypushback(int number)
throws SyntaxException
number - the number of characters to be read again.
This number must not be greater than yylength()!SyntaxExceptionpublic java_cup.runtime.Symbol next_token()
throws java.io.IOException,
SyntaxException
next_token in interface java_cup.runtime.Scannerjava.io.IOException - if any I/O-Error occursSyntaxException