/*
* 11/13/2004
*
* TokenMaker4MyRSJTextArea.java - Scanner for the Java programming language.
*
* This library is distributed under a modified BSD license. See the included
* LICENSE file for details.
*/
// package org.fife.ui.rsyntaxtextarea.modes;
package info.istlab.SyntaxEditor;
import java.io.*;
import javax.swing.text.Segment;
import org.fife.ui.rsyntaxtextarea.*;
/**
* Scanner for the Java programming language.<p>
*
* This implementation was created using
* <a href="https://www.jflex.de/">JFlex</a> 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 <code>AbstractTokenMaker</code>), 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.<p>
*
* The actual algorithm generated for scanning has, of course, not been
* modified.<p>
*
* If you wish to regenerate this file yourself, keep in mind the following:
* <ul>
* <li>The generated <code>JavaTokenMaker.java</code> file will contain two
* definitions of both <code>zzRefill</code> and <code>yyreset</code>.
* 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.</li>
* <li>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.</li>
* <li>You should NOT call <code>yylex()</code> on the generated scanner
* directly; rather, you should use <code>getTokenList</code> as you would
* with any other <code>TokenMaker</code> instance.</li>
* </ul>
*
* @author Robert Futrell
* @version 1.0
*
*/
%%
%public
%class MyTokenMaker
%extends AbstractJFlexCTokenMaker
%unicode
%type org.fife.ui.rsyntaxtextarea.Token
%{
/**
* Constructor. This must be here because JFlex does not generate a
* no-parameter constructor.
*/
public MyTokenMaker() {
}
/**
* 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.
* @see #addHyperlinkToken(int, int, int)
*/
private void addToken(int start, int end, int tokenType) {
int so = start + offsetShift;
addToken(zzBuffer, start,end, tokenType, so, false);
}
/**
* 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;
}
@Override
public String[] getLineCommentStartAndEnd(int languageIndex) {
return new String[] { "//", null };
}
/**
* Returns the first token in the linked list of tokens generated
* from <code>text</code>. 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
* <code>text</code> starts.
* @return The first <code>Token</code> 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;
switch (initialTokenType) {
case TokenTypes.COMMENT_MULTILINE:
state = MLC;
start = text.offset;
break;
case TokenTypes.COMMENT_DOCUMENTATION:
state = DOCCOMMENT;
start = text.offset;
break;
case TokenTypes.LITERAL_STRING_DOUBLE_QUOTE:
state = TEXT_BLOCK;
start = text.offset;
break;
default:
state = YYINITIAL;
}
s = text;
try {
yyreset(zzReader);
yybegin(state);
return yylex();
} catch (IOException ioe) {
ioe.printStackTrace();
return new TokenImpl();
}
}
/**
* Refills the input buffer.
*
* @return <code>true</code> if EOF was reached, otherwise
* <code>false</code>.
*/
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
* <b>cannot</b> be reused (internal buffer is discarded and lost).
* Lexical state is set to <tt>YY_INITIAL</tt>.
*
* @param reader the new input stream
*/
public final void yyreset(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 = s.offset;
zzLexicalState = YYINITIAL;
zzReader = reader;
zzAtBOL = true;
zzAtEOF = false;
}
%}
Letter = ([A-Za-z])
LetterOrUnderscore = ({Letter}|"_")
NonzeroDigit = ([1-9])
BinaryDigit = ([0-1])
Digit = ("0"|{NonzeroDigit})
HexDigit = ({Digit}|[A-Fa-f])
OctalDigit = ([0-7])
AnyCharacterButApostropheOrBackSlash = ([^\\'])
AnyCharacterButDoubleQuoteOrBackSlash = ([^\\\"\n])
EscapedSourceCharacter = ("u"{HexDigit}{HexDigit}{HexDigit}{HexDigit})
Escape = ("\\"(([bstnfr\"'\\])|([0123]{OctalDigit}?{OctalDigit}?)|({OctalDigit}{OctalDigit}?)|{EscapedSourceCharacter}))
NonSeparator = ([^\t\f\r\n\ \(\)\{\}\[\]\;\,\.\=\>\<\!\~\?\:\+\-\*\/\&\|\^\%\"\']|"#"|"\\")
IdentifierStart = ([:jletter:])
IdentifierPart = ([:jletterdigit:]|("\\"{EscapedSourceCharacter}))
LineTerminator = (\n)
WhiteSpace = ([ \t\f])
CharLiteral = ([\']({AnyCharacterButApostropheOrBackSlash}|{Escape})[\'])
UnclosedCharLiteral = ([\'][^\'\n]*)
ErrorCharLiteral = ({UnclosedCharLiteral}[\'])
StringLiteral = ([\"]({AnyCharacterButDoubleQuoteOrBackSlash}|{Escape})*[\"])
UnclosedStringLiteral = ([\"]([\\].|[^\\\"])*[^\"]?)
ErrorStringLiteral = ({UnclosedStringLiteral}[\"])
MLCBegin = "/*"
MLCEnd = "*/"
DocCommentBegin = "/**"
LineCommentBegin = "//"
/*LineCommentBegin = ("//"|"===")*/
MessageBegin = "==="([^\n\(\)]+)
CommandEcho = ">\ "([^\n\)]+)
DigitOrUnderscore = ({Digit}|[_])
DigitsAndUnderscoresEnd = ({DigitOrUnderscore}*{Digit})
IntegerHelper = (({NonzeroDigit}{DigitsAndUnderscoresEnd}?)|"0")
IntegerLiteral = ({IntegerHelper}[lL]?)
BinaryDigitOrUnderscore = ({BinaryDigit}|[_])
BinaryDigitsAndUnderscores = ({BinaryDigit}({BinaryDigitOrUnderscore}*{BinaryDigit})?)
BinaryLiteral = ("0"[bB]{BinaryDigitsAndUnderscores})
HexDigitOrUnderscore = ({HexDigit}|[_])
HexDigitsAndUnderscores = ({HexDigit}({HexDigitOrUnderscore}*{HexDigit})?)
OctalDigitOrUnderscore = ({OctalDigit}|[_])
OctalDigitsAndUnderscoresEnd= ({OctalDigitOrUnderscore}*{OctalDigit})
HexHelper = ("0"(([xX]{HexDigitsAndUnderscores})|({OctalDigitsAndUnderscoresEnd})))
HexLiteral = ({HexHelper}[lL]?)
FloatHelper1 = ([fFdD]?)
FloatHelper2 = ([eE][+-]?{Digit}+{FloatHelper1})
FloatLiteral1 = ({Digit}+"."({FloatHelper1}|{FloatHelper2}|{Digit}+({FloatHelper1}|{FloatHelper2})))
FloatLiteral2 = ("."{Digit}+({FloatHelper1}|{FloatHelper2}))
FloatLiteral3 = ({Digit}+{FloatHelper2})
FloatLiteral = ({FloatLiteral1}|{FloatLiteral2}|{FloatLiteral3}|({Digit}+[fFdD]))
ErrorNumberFormat = (({IntegerLiteral}|{HexLiteral}|{FloatLiteral}){NonSeparator}+)
BooleanLiteral = ("true"|"false")
Separator = ([\(\)\{\}\[\]])
Separator2 = ([\;,.])
NonAssignmentOperator = ("+"|"-"|"<="|"^"|"++"|"<"|"*"|">="|"%"|"--"|">"|"/"|"!="|"?"|">>"|"!"|"&"|"=="|":"|">>"|"~"|"|"|"&&"|">>>")
AssignmentOperator = ("="|"-="|"*="|"/="|"|="|"&="|"^="|"+="|"%="|"<<="|">>="|">>>=")
Operator = ({NonAssignmentOperator}|{AssignmentOperator})
CurrentBlockTag = ("author"|"deprecated"|"exception"|"param"|"return"|"see"|"serial"|"serialData"|"serialField"|"since"|"throws"|"version")
ProposedBlockTag = ("category"|"example"|"tutorial"|"index"|"exclude"|"todo"|"internal"|"obsolete"|"threadsafety")
BlockTag = ({CurrentBlockTag}|{ProposedBlockTag})
InlineTag = ("code"|"docRoot"|"inheritDoc"|"link"|"linkplain"|"literal"|"value")
Identifier = ({IdentifierStart}{IdentifierPart}*)
ErrorIdentifier = ({NonSeparator}+)
Annotation = ("@"{Identifier}?)
URLGenDelim = ([:\/\?#\[\]@])
URLSubDelim = ([\!\$&'\(\)\*\+,;=])
URLUnreserved = ({LetterOrUnderscore}|{Digit}|[\-\.\~])
URLCharacter = ({URLGenDelim}|{URLSubDelim}|{URLUnreserved}|[%])
URLCharacters = ({URLCharacter}*)
URLEndCharacter = ([\/\$]|{Letter}|{Digit})
/* URL = (((https?|f(tp|ile))"://"|"www.")({URLCharacters}{URLEndCharacter})?) */
%state MLC
%state DOCCOMMENT
%state EOL_COMMENT
%state TEXT_BLOCK
%%
<YYINITIAL> {
{LineTerminator} { addNullToken(); return firstToken; }
{WhiteSpace}+ { addToken(TokenTypes.WHITESPACE); }
{CommandEcho} { addToken(TokenTypes.ANNOTATION); }
{MessageBegin} { addToken(TokenTypes.COMMENT_EOL); }
/* Comment literals. */
"/**/" { addToken(TokenTypes.COMMENT_MULTILINE); }
{MLCBegin} { start = zzMarkedPos-2; yybegin(MLC); }
{DocCommentBegin} { start = zzMarkedPos-3; yybegin(DOCCOMMENT); }
{LineCommentBegin} { start = zzMarkedPos-2; yybegin(EOL_COMMENT); }
/* Annotations. */
{Annotation} { addToken(TokenTypes.ANNOTATION); }
/* Ended with a line not in a string or comment. */
<<EOF>> { addNullToken(); return firstToken; }
/* Catch any other (unhandled) characters and flag them as identifiers. */
. { addToken(TokenTypes.IDENTIFIER); }
"/*.java" { addToken(TokenTypes.IDENTIFIER); }
}
<MLC> {
[^hwf\n\*]+ {}
/* {URL} { int temp=zzStartRead; addToken(start,zzStartRead-1, TokenTypes.COMMENT_MULTILINE); addHyperlinkToken(temp,zzMarkedPos-1, TokenTypes.COMMENT_MULTILINE); start = zzMarkedPos; }*/
[hwf] {}
{MLCEnd} { yybegin(YYINITIAL); addToken(start,zzStartRead+1, TokenTypes.COMMENT_MULTILINE); }
\* {}
\n |
<<EOF>> { addToken(start,zzStartRead-1, TokenTypes.COMMENT_MULTILINE); return firstToken; }
}
<DOCCOMMENT> {
[^hwf\@\{\n\<\*]+ {}
/* {URL} {
int temp = zzStartRead;
if (start <= zzStartRead - 1) {
addToken(start,zzStartRead-1, TokenTypes.COMMENT_DOCUMENTATION);
}
addHyperlinkToken(temp,zzMarkedPos-1, TokenTypes.COMMENT_DOCUMENTATION);
start = zzMarkedPos;
}*/
[hwf] {}
"@"{BlockTag} {
int temp = zzStartRead;
if (start <= zzStartRead - 1) {
addToken(start,zzStartRead-1, TokenTypes.COMMENT_DOCUMENTATION);
}
addToken(temp,zzMarkedPos-1, TokenTypes.COMMENT_KEYWORD);
start = zzMarkedPos;
}
"@" {}
"{@"{InlineTag}[^\}]*"}" {
int temp = zzStartRead;
if (start <= zzStartRead - 1) {
addToken(start,zzStartRead-1, TokenTypes.COMMENT_DOCUMENTATION);
}
addToken(temp,zzMarkedPos-1, TokenTypes.COMMENT_KEYWORD);
start = zzMarkedPos;
}
"{" {}
\n { addToken(start,zzStartRead-1, TokenTypes.COMMENT_DOCUMENTATION); return firstToken; }
"<"[/]?({Letter}[^\>]*)?">" { int temp=zzStartRead; addToken(start,zzStartRead-1, TokenTypes.COMMENT_DOCUMENTATION); addToken(temp,zzMarkedPos-1, TokenTypes.COMMENT_MARKUP); start = zzMarkedPos; }
\< {}
{MLCEnd} { yybegin(YYINITIAL); addToken(start,zzStartRead+1, TokenTypes.COMMENT_DOCUMENTATION); }
\* {}
<<EOF>> { yybegin(YYINITIAL); addToken(start,zzEndRead, TokenTypes.COMMENT_DOCUMENTATION); return firstToken; }
}
<EOL_COMMENT> {
[^hwf\n]+ {}
/* {URL} { int temp=zzStartRead; addToken(start,zzStartRead-1, TokenTypes.COMMENT_EOL); addHyperlinkToken(temp,zzMarkedPos-1, TokenTypes.COMMENT_EOL); start = zzMarkedPos; }
*/
[hwf] {}
\n |
<<EOF>> { addToken(start,zzStartRead-1, TokenTypes.COMMENT_EOL); addNullToken(); return firstToken; }
}
<TEXT_BLOCK> {
[^\"\\\n]* {}
\\.? { /* Skip escaped chars, handles case: '\"""'. */ }
\"\"\" { yybegin(YYINITIAL); addToken(start,zzStartRead+2, TokenTypes.LITERAL_STRING_DOUBLE_QUOTE); }
\" {}
\n |
<<EOF>> { addToken(start,zzStartRead-1, TokenTypes.LITERAL_STRING_DOUBLE_QUOTE); return firstToken; }
}
