public class MxmlTokenMaker extends AbstractMarkupTokenMaker
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:
MXMLTokenMaker.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 |
AS |
static int |
AS_EOL_COMMENT
lexical states
|
static int |
AS_MLC |
static int |
CDATA |
static int |
COMMENT |
static int |
DTD |
static int |
INATTR_DOUBLE |
static int |
INATTR_DOUBLE_SCRIPT |
static int |
INATTR_SINGLE |
static int |
INATTR_SINGLE_SCRIPT |
static int |
INTAG |
static int |
INTAG_SCRIPT |
static int |
INTERNAL_ATTR_DOUBLE
Type specific to JSPTokenMaker denoting a line ending with an unclosed
double-quote attribute.
|
static int |
INTERNAL_ATTR_DOUBLE_QUOTE_SCRIPT
Token type specific to this class; this signals that the user has
ended a line in the middle of a double-quoted attribute in a Script
tag.
|
static int |
INTERNAL_ATTR_SINGLE
Type specific to JSPTokenMaker denoting a line ending with an unclosed
single-quote attribute.
|
static int |
INTERNAL_ATTR_SINGLE_QUOTE_SCRIPT
Token type specific to this class; this signals that the user has
ended a line in the middle of a single-quoted attribute in a Script
tag.
|
static int |
INTERNAL_IN_AS
Token type specific to this class; this signals that the user has
ended a line in an ActionScript code block (text content inside a
Script tag).
|
static int |
INTERNAL_IN_AS_MLC
Token type specific to this class; this signals that the user has
ended a line in an MLC in an ActionScript code block (text content
inside a Script tag).
|
static int |
INTERNAL_INTAG
Token type specific to this class; this signals that the user has
ended a line with an unclosed XML tag; thus a new line is beginning
still inside of the tag.
|
static int |
INTERNAL_INTAG_SCRIPT
Token type specific to this class; this signals that the user has
ended a line with an unclosed Script tag; thus a new line is beginning
still inside of the tag.
|
static int |
PI |
static int |
YYEOF
This character denotes the end of file
|
static int |
YYINITIAL |
offsetShift, s, start
currentToken, firstToken, previousToken
Constructor and Description |
---|
MxmlTokenMaker()
Constructor.
|
MxmlTokenMaker(java.io.InputStream in)
Creates a new scanner.
|
MxmlTokenMaker(java.io.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.
|
static boolean |
getCompleteCloseMarkupTags()
Static version of
getCompleteCloseTags() . |
boolean |
getCompleteCloseTags()
Returns whether markup close tags should be completed.
|
boolean |
getMarkOccurrencesOfTokenType(int type)
Always returns
false , as you never want "mark occurrences"
working in XML files. |
Token |
getTokenList(javax.swing.text.Segment text,
int initialTokenType,
int startOffset)
Returns the first token in the linked list of tokens generated
from
text . |
static void |
setCompleteCloseTags(boolean complete)
Sets whether markup close tags should be completed.
|
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.
|
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(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.
|
getLineCommentStartAndEnd, isMarkupLanguage
yybegin
addNullToken, addToken, addToken, createOccurrenceMarker, getClosestStandardTokenTypeForInternalType, getCurlyBracesDenoteCodeBlocks, getInsertBreakAction, getLanguageIndex, getLastTokenTypeOnLine, getOccurrenceMarker, getShouldIndentNextLineAfter, isIdentifierChar, resetTokenList, setLanguageIndex
public static final int YYEOF
public static final int AS_EOL_COMMENT
public static final int AS_MLC
public static final int INTAG_SCRIPT
public static final int INATTR_DOUBLE_SCRIPT
public static final int CDATA
public static final int INATTR_SINGLE_SCRIPT
public static final int DTD
public static final int INATTR_SINGLE
public static final int INATTR_DOUBLE
public static final int YYINITIAL
public static final int AS
public static final int INTAG
public static final int COMMENT
public static final int PI
public static final int INTERNAL_ATTR_DOUBLE
public static final int INTERNAL_ATTR_SINGLE
public static final int INTERNAL_INTAG
public static final int INTERNAL_INTAG_SCRIPT
public static final int INTERNAL_ATTR_DOUBLE_QUOTE_SCRIPT
public static final int INTERNAL_ATTR_SINGLE_QUOTE_SCRIPT
public static final int INTERNAL_IN_AS
public static final int INTERNAL_IN_AS_MLC
public MxmlTokenMaker()
public MxmlTokenMaker(java.io.Reader in)
in
- the java.io.Reader to read input from.public MxmlTokenMaker(java.io.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 TokenMakerBase
array
- 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 boolean getCompleteCloseTags()
true
.getCompleteCloseTags
in class AbstractMarkupTokenMaker
setCompleteCloseTags(boolean)
public static boolean getCompleteCloseMarkupTags()
getCompleteCloseTags()
. This hack is
unfortunately needed for applications to be able to query this value
without instantiating this class.setCompleteCloseTags(boolean)
public boolean getMarkOccurrencesOfTokenType(int type)
false
, as you never want "mark occurrences"
working in XML files.getMarkOccurrencesOfTokenType
in interface TokenMaker
getMarkOccurrencesOfTokenType
in class TokenMakerBase
type
- The token type.public Token getTokenList(javax.swing.text.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 static void setCompleteCloseTags(boolean complete)
complete
- Whether closing markup tags are completed.getCompleteCloseTags()
public final void yyreset(java.io.Reader reader)
YY_INITIAL
.reader
- the new input streampublic final void yyclose() throws java.io.IOException
java.io.IOException
public final int yystate()
public final void yybegin(int newState)
yybegin
in class AbstractJFlexTokenMaker
newState
- the new lexical statepublic final java.lang.String yytext()
public final char yycharat(int pos)
pos
from the
matched text.
It is equivalent to yytext().charAt(pos), but fasterpos
- 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 Token yylex() throws java.io.IOException
java.io.IOException
- if any I/O-Error occurs