public class MatlabTokenMaker
extends org.fife.ui.rsyntaxtextarea.AbstractJFlexTokenMaker
Copyright (C) 2009 Sumit Dubey Licensed as per LGPLv3, or any other license
at the discretion of Robert Futrell. This implementation was created using JFlex 1.4.1; however, the generated file was
modified for performance. Memory allocation needs to be almost completely
removed to be competitive with the handwritten lexers (subclasses of
AbstractTokenMaker, so this class has been modified so that
Strings are never allocated (via yytext()), and the scanner never has to
worry about refilling its buffer (needlessly copying chars around). We can
achieve this because RText always scans exactly 1 line of tokens at a time,
and hands the scanner this line as an array of characters (a Segment really).
Since tokens contain pointers to char arrays instead of Strings holding their
contents, there is no need for allocating new memory for Strings.
The actual algorithm generated for scanning has, of course, not been modified.
If you wish to regenerate this file yourself, keep in mind the following:
JavaTokenMaker.java file will contain two
definitions of both zzRefill and yyreset. You
should hand-delete the second of each definition (the ones generated by the
lexer), as these generated methods modify the input buffer, which we'll never
have to do.yylex() on the generated scanner
directly; rather, you should use getTokenList as you would with
any other TokenMaker instance.| Modifier and Type | Field and Description |
|---|---|
static int |
EOL_COMMENT
lexical states
|
static int |
MLC |
static int |
STRING |
static int |
YYEOF
This character denotes the end of file
|
static int |
YYINITIAL |
| Constructor and Description |
|---|
MatlabTokenMaker()
Constructor.
|
MatlabTokenMaker(InputStream in)
Creates a new scanner.
|
MatlabTokenMaker(Reader in)
Creates a new scanner There is also a java.io.InputStream version of this
constructor.
|
| Modifier and Type | Method and Description |
|---|---|
void |
addToken(char[] array,
int start,
int end,
int tokenType,
int startOffset,
boolean hyperlink)
Adds the token specified to the current linked list of tokens.
|
org.fife.ui.rsyntaxtextarea.Token |
getTokenList(Segment text,
int initialTokenType,
int startOffset)
Returns the first token in the linked list of tokens generated from
text. |
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.
|
org.fife.ui.rsyntaxtextarea.Token |
yylex()
Resumes scanning until the next regular expression is matched, the end of
input is encountered or an I/O-Error occurs.
|
void |
yypushback(int number)
Pushes the specified amount of characters back into the input stream.
|
void |
yyreset(Reader reader)
Resets the scanner to read from a new input stream.
|
int |
yystate()
Returns the current lexical state.
|
String |
yytext()
Returns the text matched by the current regular expression.
|
addNullToken, addToken, addToken, createOccurrenceMarker, getClosestStandardTokenTypeForInternalType, getCurlyBracesDenoteCodeBlocks, getInsertBreakAction, getLanguageIndex, getLastTokenTypeOnLine, getLineCommentStartAndEnd, getMarkOccurrencesOfTokenType, getOccurrenceMarker, getShouldIndentNextLineAfter, isIdentifierChar, isMarkupLanguage, resetTokenList, setLanguageIndexpublic static final int YYEOF
public static final int EOL_COMMENT
public static final int STRING
public static final int YYINITIAL
public static final int MLC
public MatlabTokenMaker()
public MatlabTokenMaker(Reader in)
in - the java.io.Reader to read input from.public MatlabTokenMaker(InputStream in)
in - the java.io.Inputstream to read input from.public void addToken(char[] array,
int start,
int end,
int tokenType,
int startOffset,
boolean hyperlink)
addToken in class org.fife.ui.rsyntaxtextarea.TokenMakerBasearray - The character array.start - The starting offset in the array.end - The ending offset in the array.tokenType - The token's type.startOffset - The offset in the document at which this token occurs.hyperlink - Whether this token is a hyperlink.public org.fife.ui.rsyntaxtextarea.Token getTokenList(Segment text, int initialTokenType, int startOffset)
text. This method must be implemented by subclasses so they
can correctly implement syntax highlighting.text - The text from which to get tokens.initialTokenType - The token type we should start with.startOffset - The offset into the document at which text
starts.Token in a linked list representing the
syntax highlighted text.public final void yyreset(Reader reader) throws IOException
reader - the new input streamIOExceptionpublic final void yyclose()
throws IOException
IOExceptionpublic final int yystate()
public final void yybegin(int newState)
yybegin in class org.fife.ui.rsyntaxtextarea.AbstractJFlexTokenMakernewState - the new lexical statepublic final 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)
number - the number of characters to be read again. This number must
not be greater than yylength()!public org.fife.ui.rsyntaxtextarea.Token yylex()
throws IOException
IOException - if any I/O-Error occursCopyright © 2015–2022 SciJava. All rights reserved.