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/*
* 01/21/2011
*
* MxmlTokenMaker.java - Generates tokens for MXML syntax highlighting.
*
* This library is distributed under a modified BSD license. See the included
* RSyntaxTextArea.License.txt file for details.
*/
package org.fife.ui.rsyntaxtextarea.modes;
import java.io.*;
import javax.swing.text.Segment;
import org.fife.ui.rsyntaxtextarea.*;
/**
* Scanner for MXML.
*
* 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:
*
* - The generated
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.
* - You should also change the declaration/definition of zzBuffer to NOT
* be initialized. This is a needless memory allocation for us since we
* will be pointing the array somewhere else anyway.
* - You should NOT call
yylex() on the generated scanner
* directly; rather, you should use getTokenList as you would
* with any other TokenMaker instance.
*
*
* @author Robert Futrell
* @version 0.5
*
*/
%%
%public
%class MxmlTokenMaker
%extends AbstractMarkupTokenMaker
%unicode
%type org.fife.ui.rsyntaxtextarea.Token
%{
/**
* Type specific to JSPTokenMaker denoting a line ending with an unclosed
* double-quote attribute.
*/
public static final int INTERNAL_ATTR_DOUBLE = -1;
/**
* Type specific to JSPTokenMaker denoting a line ending with an unclosed
* single-quote attribute.
*/
public static final int INTERNAL_ATTR_SINGLE = -2;
/**
* 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.
*/
public static final int INTERNAL_INTAG = -3;
/**
* 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.
*/
public static final int INTERNAL_INTAG_SCRIPT = -4;
/**
* 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.
*/
public static final int INTERNAL_ATTR_DOUBLE_QUOTE_SCRIPT = -5;
/**
* 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.
*/
public static final int INTERNAL_ATTR_SINGLE_QUOTE_SCRIPT = -6;
/**
* 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).
*/
public static final int INTERNAL_IN_AS = -7;
/**
* 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).
*/
public static final int INTERNAL_IN_AS_MLC = -8;
/**
* Whether closing markup tags are automatically completed for HTML.
*/
private static boolean completeCloseTags;
/**
* Constructor. This must be here because JFlex does not generate a
* no-parameter constructor.
*/
public MxmlTokenMaker() {
}
static {
completeCloseTags = true;
}
/**
* Adds the token specified to the current linked list of tokens as an
* "end token;" that is, at zzMarkedPos.
*
* @param tokenType The token's type.
*/
private void addEndToken(int tokenType) {
addToken(zzMarkedPos,zzMarkedPos, tokenType);
}
/**
* Adds the token specified to the current linked list of tokens.
*
* @param tokenType The token's type.
* @see #addToken(int, int, int)
*/
private void addHyperlinkToken(int start, int end, int tokenType) {
int so = start + offsetShift;
addToken(zzBuffer, start,end, tokenType, so, true);
}
/**
* Adds the token specified to the current linked list of tokens.
*
* @param tokenType The token's type.
*/
private void addToken(int tokenType) {
addToken(zzStartRead, zzMarkedPos-1, tokenType);
}
/**
* Adds the token specified to the current linked list of tokens.
*
* @param tokenType The token's type.
*/
private void addToken(int start, int end, int tokenType) {
int so = start + offsetShift;
addToken(zzBuffer, start,end, tokenType, so);
}
/**
* Adds the token specified to the current linked list of tokens.
*
* @param array The character array.
* @param start The starting offset in the array.
* @param end The ending offset in the array.
* @param tokenType The token's type.
* @param startOffset The offset in the document at which this token
* occurs.
* @param hyperlink Whether this token is a hyperlink.
*/
@Override
public void addToken(char[] array, int start, int end, int tokenType,
int startOffset, boolean hyperlink) {
super.addToken(array, start,end, tokenType, startOffset, hyperlink);
zzStartRead = zzMarkedPos;
}
/**
* Returns whether markup close tags should be completed. For XML, the
* default value is true.
*
* @return Whether closing markup tags are completed.
* @see #setCompleteCloseTags(boolean)
*/
@Override
public boolean getCompleteCloseTags() {
return completeCloseTags;
}
/**
* Static version of {@link #getCompleteCloseTags()}. This hack is
* unfortunately needed for applications to be able to query this value
* without instantiating this class.
*
* @return Whether closing markup tags are completed.
* @see #setCompleteCloseTags(boolean)
*/
public static boolean getCompleteCloseMarkupTags() {
return completeCloseTags;
}
/**
* Always returns false, as you never want "mark occurrences"
* working in XML files.
*
* @param type The token type.
* @return Whether tokens of this type should have "mark occurrences"
* enabled.
*/
public boolean getMarkOccurrencesOfTokenType(int type) {
return false;
}
/**
* Returns the first token in the linked list of tokens generated
* from text. This method must be implemented by
* subclasses so they can correctly implement syntax highlighting.
*
* @param text The text from which to get tokens.
* @param initialTokenType The token type we should start with.
* @param startOffset The offset into the document at which
* text starts.
* @return The first Token in a linked list representing
* the syntax highlighted text.
*/
public Token getTokenList(Segment text, int initialTokenType, int startOffset) {
resetTokenList();
this.offsetShift = -text.offset + startOffset;
// Start off in the proper state.
int state = Token.NULL;
switch (initialTokenType) {
case Token.MARKUP_COMMENT:
state = COMMENT;
start = text.offset;
break;
case Token.MARKUP_DTD:
state = DTD;
start = text.offset;
break;
case INTERNAL_ATTR_DOUBLE:
state = INATTR_DOUBLE;
start = text.offset;
break;
case INTERNAL_ATTR_SINGLE:
state = INATTR_SINGLE;
start = text.offset;
break;
case Token.MARKUP_PROCESSING_INSTRUCTION:
state = PI;
start = text.offset;
break;
case INTERNAL_INTAG:
state = INTAG;
start = text.offset;
break;
case INTERNAL_INTAG_SCRIPT:
state = INTAG_SCRIPT;
start = text.offset;
break;
case INTERNAL_ATTR_DOUBLE_QUOTE_SCRIPT:
state = INATTR_DOUBLE_SCRIPT;
start = text.offset;
break;
case INTERNAL_ATTR_SINGLE_QUOTE_SCRIPT:
state = INATTR_SINGLE_SCRIPT;
start = text.offset;
break;
case INTERNAL_IN_AS:
state = AS;
start = text.offset;
break;
case INTERNAL_IN_AS_MLC:
state = AS_MLC;
start = text.offset;
break;
case Token.MARKUP_CDATA:
state = CDATA;
start = text.offset;
break;
default:
state = Token.NULL;
}
s = text;
try {
yyreset(zzReader);
yybegin(state);
return yylex();
} catch (IOException ioe) {
ioe.printStackTrace();
return new TokenImpl();
}
}
/**
* Sets whether markup close tags should be completed.
*
* @param complete Whether closing markup tags are completed.
* @see #getCompleteCloseTags()
*/
public static void setCompleteCloseTags(boolean complete) {
completeCloseTags = complete;
}
/**
* Refills the input buffer.
*
* @return true if EOF was reached, otherwise
* false.
*/
private boolean zzRefill() {
return zzCurrentPos>=s.offset+s.count;
}
/**
* Resets the scanner to read from a new input stream.
* Does not close the old reader.
*
* All internal variables are reset, the old input stream
* cannot be reused (internal buffer is discarded and lost).
* Lexical state is set to YY_INITIAL.
*
* @param reader the new input stream
*/
public final void yyreset(java.io.Reader reader) {
// 's' has been updated.
zzBuffer = s.array;
/*
* We replaced the line below with the two below it because zzRefill
* no longer "refills" the buffer (since the way we do it, it's always
* "full" the first time through, since it points to the segment's
* array). So, we assign zzEndRead here.
*/
//zzStartRead = zzEndRead = s.offset;
zzStartRead = s.offset;
zzEndRead = zzStartRead + s.count - 1;
zzCurrentPos = zzMarkedPos = zzPushbackPos = s.offset;
zzLexicalState = YYINITIAL;
zzReader = reader;
zzAtBOL = true;
zzAtEOF = false;
}
%}
/* XML macros (and some building-block macros used by AS macros). */
Letter = [A-Za-z]
NonzeroDigit = [1-9]
Digit = ("0"|{NonzeroDigit})
LetterOrUnderscore = ({Letter}|"_")
NameStartChar = ({Letter}|[\:])
NameChar = ({NameStartChar}|[\-\.]|{Digit})
TagName = ({NameStartChar}{NameChar}*)
Whitespace = ([ \t\f])
LineTerminator = ([\n])
Identifier = ([^ \t\n<&]+)
EntityReference = ([&][^; \t]*[;]?)
InTagIdentifier = ([^ \t\n\"\'=\/>]+)
CDataBegin = ("")
/* ActionScript macros. */
HexDigit = ({Digit}|[A-Fa-f])
OctalDigit = ([0-7])
AnyCharacterButApostropheOrBackSlash = ([^\\'])
AnyCharacterButDoubleQuoteOrBackSlash = ([^\\\"\n])
EscapedSourceCharacter = ("u"{HexDigit}{HexDigit}{HexDigit}{HexDigit})
Escape = ("\\"(([btnfr\"'\\])|([0123]{OctalDigit}?{OctalDigit}?)|({OctalDigit}{OctalDigit}?)|{EscapedSourceCharacter}))
NonSeparator = ([^\t\f\r\n\ \(\)\{\}\[\]\;\,\.\=\>\<\!\~\?\:\+\-\*\/\&\|\^\%\"\']|"#"|"\\")
IdentifierStart = ({LetterOrUnderscore}|"$")
IdentifierPart = ({IdentifierStart}|{Digit}|("\\"{EscapedSourceCharacter}))
AS_CharLiteral = ([\']({AnyCharacterButApostropheOrBackSlash}|{Escape})*[\'])
AS_UnclosedCharLiteral = ([\']([\\].|[^\\\'])*[^\']?)
AS_ErrorCharLiteral = ({AS_UnclosedCharLiteral}[\'])
AS_StringLiteral = ([\"]({AnyCharacterButDoubleQuoteOrBackSlash}|{Escape})*[\"])
AS_UnclosedStringLiteral = ([\"]([\\].|[^\\\"])*[^\"]?)
AS_ErrorStringLiteral = ({AS_UnclosedStringLiteral}[\"])
AS_MLCBegin = ("/*")
AS_MLCEnd = ("*/")
AS_LineCommentBegin = ("//")
IntegerHelper1 = (({NonzeroDigit}{Digit}*)|"0")
IntegerHelper2 = ("0"(([xX]{HexDigit}+)|({OctalDigit}*)))
AS_IntegerLiteral = ({IntegerHelper1}[lL]?)
AS_HexLiteral = ({IntegerHelper2}[lL]?)
FloatHelper1 = ([fFdD]?)
FloatHelper2 = ([eE][+-]?{Digit}+{FloatHelper1})
FloatLiteral1 = ({Digit}+"."({FloatHelper1}|{FloatHelper2}|{Digit}+({FloatHelper1}|{FloatHelper2})))
FloatLiteral2 = ("."{Digit}+({FloatHelper1}|{FloatHelper2}))
FloatLiteral3 = ({Digit}+{FloatHelper2})
AS_FloatLiteral = ({FloatLiteral1}|{FloatLiteral2}|{FloatLiteral3}|({Digit}+[fFdD]))
AS_ErrorNumberFormat = (({AS_IntegerLiteral}|{AS_HexLiteral}|{AS_FloatLiteral}){NonSeparator}+)
AS_BooleanLiteral = ("true"|"false")
AS_Separator = ([\(\)\{\}\[\]])
AS_Separator2 = ([\;,.])
NonAssignmentOperator = ("+"|"-"|"<="|"^"|"++"|"<"|"*"|">="|"%"|"--"|">"|"/"|"!="|"?"|">>"|"!"|"&"|"=="|":"|">>"|"~"|"|"|"&&"|">>>")
AssignmentOperator = ("="|"-="|"*="|"/="|"|="|"&="|"^="|"+="|"%="|"<<="|">>="|">>>=")
AS_Operator = ({NonAssignmentOperator}|{AssignmentOperator})
AS_Identifier = ({IdentifierStart}{IdentifierPart}*)
AS_ErrorIdentifier = ({NonSeparator}+)
AS_EndScriptTag = ("")
URLGenDelim = ([:\/\?#\[\]@])
URLSubDelim = ([\!\$&'\(\)\*\+,;=])
URLUnreserved = ({LetterOrUnderscore}|{Digit}|[\-\.\~])
URLCharacter = ({URLGenDelim}|{URLSubDelim}|{URLUnreserved}|[%])
URLCharacters = ({URLCharacter}*)
URLEndCharacter = ([\/\$]|{Letter}|{Digit})
URL = (((https?|f(tp|ile))"://"|"www.")({URLCharacters}{URLEndCharacter})?)
%state COMMENT
%state PI
%state DTD
%state INTAG
%state INATTR_DOUBLE
%state INATTR_SINGLE
%state INTAG_SCRIPT
%state INATTR_DOUBLE_SCRIPT
%state INATTR_SINGLE_SCRIPT
%state CDATA
%state AS
%state AS_MLC
%state AS_EOL_COMMENT
%%
{
"" { yybegin(YYINITIAL); addToken(start,zzStartRead+2, Token.MARKUP_COMMENT); }
"-" {}
<> { addToken(start,zzStartRead-1, Token.MARKUP_COMMENT); return firstToken; }
}
{
[^\n\?]+ {}
{LineTerminator} { addToken(start,zzStartRead-1, Token.MARKUP_PROCESSING_INSTRUCTION); return firstToken; }
"?>" { yybegin(YYINITIAL); addToken(start,zzStartRead+1, Token.MARKUP_PROCESSING_INSTRUCTION); }
"?" {}
<> { addToken(start,zzStartRead-1, Token.MARKUP_PROCESSING_INSTRUCTION); return firstToken; }
}
{
[^\n>]+ {}
{LineTerminator} { addToken(start,zzStartRead-1, Token.MARKUP_DTD); return firstToken; }
">" { yybegin(YYINITIAL); addToken(start,zzStartRead, Token.MARKUP_DTD); }
<> { addToken(start,zzStartRead-1, Token.MARKUP_DTD); return firstToken; }
}
{
{InTagIdentifier} { addToken(Token.MARKUP_TAG_ATTRIBUTE); }
{Whitespace}+ { addToken(Token.WHITESPACE); }
"=" { addToken(Token.OPERATOR); }
"/" { addToken(Token.MARKUP_TAG_DELIMITER); /* Not valid but we'll still accept it */ }
"/>" { yybegin(YYINITIAL); addToken(Token.MARKUP_TAG_DELIMITER); }
">" { yybegin(YYINITIAL); addToken(Token.MARKUP_TAG_DELIMITER); }
[\"] { start = zzMarkedPos-1; yybegin(INATTR_DOUBLE); }
[\'] { start = zzMarkedPos-1; yybegin(INATTR_SINGLE); }
<> { addToken(start,zzStartRead-1, INTERNAL_INTAG); return firstToken; }
}
{
[^\"]* {}
[\"] { yybegin(INTAG); addToken(start,zzStartRead, Token.MARKUP_TAG_ATTRIBUTE_VALUE); }
<> { addToken(start,zzStartRead-1, Token.MARKUP_TAG_ATTRIBUTE_VALUE); addEndToken(INTERNAL_ATTR_DOUBLE); return firstToken; }
}
{
[^\']* {}
[\'] { yybegin(INTAG); addToken(start,zzStartRead, Token.MARKUP_TAG_ATTRIBUTE_VALUE); }
<> { addToken(start,zzStartRead-1, Token.MARKUP_TAG_ATTRIBUTE_VALUE); addEndToken(INTERNAL_ATTR_SINGLE); return firstToken; }
}
{
{InTagIdentifier} { addToken(Token.MARKUP_TAG_ATTRIBUTE); }
{Whitespace}+ { addToken(Token.WHITESPACE); }
"=" { addToken(Token.OPERATOR); }
"/" { addToken(Token.MARKUP_TAG_DELIMITER); /* Not valid but we'll still accept it */ }
"/>" { yybegin(YYINITIAL); addToken(Token.MARKUP_TAG_DELIMITER); }
">" { yybegin(AS); addToken(Token.MARKUP_TAG_DELIMITER); }
[\"] { start = zzMarkedPos-1; yybegin(INATTR_DOUBLE_SCRIPT); }
[\'] { start = zzMarkedPos-1; yybegin(INATTR_SINGLE_SCRIPT); }
<> { addToken(start,zzStartRead-1, INTERNAL_INTAG_SCRIPT); return firstToken; }
}
{
[^\"]* {}
[\"] { yybegin(INTAG_SCRIPT); addToken(start,zzStartRead, Token.MARKUP_TAG_ATTRIBUTE_VALUE); }
<> { addToken(start,zzStartRead-1, Token.MARKUP_TAG_ATTRIBUTE_VALUE); addEndToken(INTERNAL_ATTR_DOUBLE_QUOTE_SCRIPT); return firstToken; }
}
{
[^\']* {}
[\'] { yybegin(INTAG_SCRIPT); addToken(start,zzStartRead, Token.MARKUP_TAG_ATTRIBUTE_VALUE); }
<> { addToken(start,zzStartRead-1, Token.MARKUP_TAG_ATTRIBUTE_VALUE); addEndToken(INTERNAL_ATTR_SINGLE_QUOTE_SCRIPT); return firstToken; }
}
{
[^\]]+ {}
{CDataEnd} { int temp=zzStartRead; yybegin(YYINITIAL); addToken(start,zzStartRead-1, Token.MARKUP_CDATA); addToken(temp,zzMarkedPos-1, Token.MARKUP_CDATA_DELIMITER); }
"]" {}
<> { addToken(start,zzStartRead-1, Token.MARKUP_CDATA); return firstToken; }
}
{
{AS_EndScriptTag} {
int origStart = zzStartRead;
String text = yytext();
int tagNameEnd = text.length() - 2; // "-1" is '>'
while (Character.isWhitespace(text.charAt(tagNameEnd))) {
tagNameEnd--;
}
int tagNameLen = tagNameEnd - 1;
yybegin(YYINITIAL);
addToken(zzStartRead,zzStartRead+1, Token.MARKUP_TAG_DELIMITER);
addToken(origStart+2,origStart+2+tagNameLen-1, Token.MARKUP_TAG_NAME);
if (tagNameEnd> { addEndToken(INTERNAL_IN_AS); return firstToken; }
/* Catch any other (unhandled) characters and flag them as bad. */
. { addToken(Token.ERROR_IDENTIFIER); }
}
{
[^hwf\n\*]+ {}
{URL} { int temp=zzStartRead; addToken(start,zzStartRead-1, Token.COMMENT_MULTILINE); addHyperlinkToken(temp,zzMarkedPos-1, Token.COMMENT_MULTILINE); start = zzMarkedPos; }
[hwf] {}
\n { addToken(start,zzStartRead-1, Token.COMMENT_MULTILINE); addEndToken(INTERNAL_IN_AS_MLC); return firstToken; }
{AS_MLCEnd} { yybegin(AS); addToken(start,zzStartRead+1, Token.COMMENT_MULTILINE); }
\* {}
<> { addToken(start,zzStartRead-1, Token.COMMENT_MULTILINE); addEndToken(INTERNAL_IN_AS_MLC); return firstToken; }
}
{
[^hwf\n]+ {}
{URL} { int temp=zzStartRead; addToken(start,zzStartRead-1, Token.COMMENT_EOL); addHyperlinkToken(temp,zzMarkedPos-1, Token.COMMENT_EOL); start = zzMarkedPos; }
[hwf] {}
\n |
<> { addToken(start,zzStartRead-1, Token.COMMENT_EOL); addEndToken(INTERNAL_IN_AS); return firstToken; }
}