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/* * 09/08/2014 * * DTokenMaker.java - Scanner for the D programming language. * * 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 the D programming language.file will contain two * definitions of both* * 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 DTokenMaker.java
zzRefillandyyreset. * 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.zzMarkedPos.
*
* @param tokenType The token's type.
*/
private void addEndToken(int tokenType) {
addToken(zzMarkedPos,zzMarkedPos, tokenType);
}
private void addNestedMlcEndToken() {
addEndToken(INTERNAL_IN_NESTABLE_MLC - nestedMlcDepth);
}
/**
* 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 int getClosestStandardTokenTypeForInternalType(int type) {
switch (type) {
case INTERNAL_IN_NESTABLE_MLC:
return TokenTypes.COMMENT_MULTILINE;
}
return type;
}
/**
* {@inheritDoc}
*/
@Override
public String[] getLineCommentStartAndEnd(int languageIndex) {
return new String[] { "//", null };
}
/**
* 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;
nestedMlcDepth = 0;
// Start off in the proper state.
int state = YYINITIAL;
switch (initialTokenType) {
case Token.LITERAL_BACKQUOTE:
state = WYSIWYG_STRING_2;
break;
case Token.LITERAL_STRING_DOUBLE_QUOTE:
state = WYSIWYG_STRING_1;
break;
case Token.COMMENT_MULTILINE:
state = MLC;
break;
case Token.COMMENT_DOCUMENTATION:
state = DOCCOMMENT;
break;
case INTERNAL_IN_NESTABLE_MLC:
state = NESTABLE_MLC;
break;
default:
if (initialTokenType<-1024) {
int main = -(-initialTokenType & 0xffffff00);
switch (main) {
default: // Should never happen
case INTERNAL_IN_NESTABLE_MLC:
state = NESTABLE_MLC;
break;
}
nestedMlcDepth = -initialTokenType&0xff;
}
else {
state = YYINITIAL;
}
}
start = text.offset;
s = text;
try {
yyreset(zzReader);
yybegin(state);
return yylex();
} catch (IOException ioe) {
ioe.printStackTrace();
return new TokenImpl();
}
}
/**
* Refills the input buffer.
*
* @return true if EOF was reached, otherwise
* false.
* @exception IOException if any I/O-Error occurs.
*/
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(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;
}
%}
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 = ("\\"(([btnfr\"'\\])|([0123]{OctalDigit}?{OctalDigit}?)|({OctalDigit}{OctalDigit}?)|{EscapedSourceCharacter}))
NonSeparator = ([^\t\f\r\n\ \(\)\{\}\[\]\;\,\.\=\>\<\!\~\?\:\+\-\*\/\&\|\^\%\"\'\`]|"#"|"\\")
IdentifierStart = ({LetterOrUnderscore}|"$")
IdentifierPart = ({IdentifierStart}|{Digit}|("\\"{EscapedSourceCharacter}))
LineTerminator = (\n)
WhiteSpace = ([ \t\f])
StringPostfix = ([cwd])
CharLiteral = ([\']({AnyCharacterButApostropheOrBackSlash}|{Escape})[\']{StringPostfix}?)
UnclosedCharLiteral = ([\'][^\'\n]*)
ErrorCharLiteral = ({UnclosedCharLiteral}[\']{StringPostfix}?)
StringLiteral = ([\"]({AnyCharacterButDoubleQuoteOrBackSlash}|{Escape})*[\"]{StringPostfix}?)
UnclosedStringLiteral = ([\"]([\\].|[^\\\"])*[^\"]?)
HexStringLiteral = ([x]{StringLiteral})
UnclosedHexStringLiteral = ([x]{UnclosedStringLiteral})
ErrorStringLiteral = ({UnclosedStringLiteral}[\"]{StringPostfix}?)
WysiwygStringLiteralStart = ("r"[\"])
WysiwygStringLiteralStart2 = ("`")
MLCBegin = "/*"
MLCEnd = "*/"
DocCommentBegin = "/**"
NestableMLCBegin = "/+"
LineCommentBegin = "//"
LineDocCommentBegin = "///"
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})
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 NESTABLE_MLC
%state EOL_COMMENT
%state EOL_DOCCOMMENT
%state WYSIWYG_STRING_1
%state WYSIWYG_STRING_2
%%