org.fife.ui.rsyntaxtextarea.modes.DartTokenMaker Maven / Gradle / Ivy
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/* The following code was generated by JFlex 1.4.1 on 9/1/14 10:57 PM */ /* * 09/01/2014 * * DartTokenMaker.java - Token parser for Dart. * * 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 Dart files. Its states could be simplified, but are * kept the way they are to keep a degree of similarity (i.e. copy/paste) * between it and HTML/JSP/PHPTokenMaker. This should cause no difference in * performance.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 DartTokenMaker.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.aState
*/
private static final int [] ZZ_ATTRIBUTE = zzUnpackAttribute();
private static final String ZZ_ATTRIBUTE_PACKED_0 =
"\5\0\4\1\1\11\4\1\1\11\10\1\2\11\3\1"+
"\1\11\45\1\1\11\1\1\1\11\1\1\1\11\1\1"+
"\1\11\1\1\1\11\5\1\2\11\2\1\1\11\20\1"+
"\1\11\6\1\1\0\42\1\1\0\33\1\1\0\1\11"+
"\2\1\1\11\4\0\1\11\1\0\1\11\1\0\2\1"+
"\1\0\7\1\1\0\47\1\1\11\43\1\1\11\6\0"+
"\2\11\5\1\1\11\74\1\1\0\1\11\1\0\1\1"+
"\1\0\65\1\2\0\303\1";
private static int [] zzUnpackAttribute() {
int [] result = new int[600];
int offset = 0;
offset = zzUnpackAttribute(ZZ_ATTRIBUTE_PACKED_0, offset, result);
return result;
}
private static int zzUnpackAttribute(String packed, int offset, int [] result) {
int i = 0; /* index in packed string */
int j = offset; /* index in unpacked array */
int l = packed.length();
while (i < l) {
int count = packed.charAt(i++);
int value = packed.charAt(i++);
do result[j++] = value; while (--count > 0);
}
return j;
}
/** the input device */
private java.io.Reader zzReader;
/** the current state of the DFA */
private int zzState;
/** the current lexical state */
private int zzLexicalState = YYINITIAL;
/** this buffer contains the current text to be matched and is
the source of the yytext() string */
private char zzBuffer[];
/** the textposition at the last accepting state */
private int zzMarkedPos;
/** the current text position in the buffer */
private int zzCurrentPos;
/** startRead marks the beginning of the yytext() string in the buffer */
private int zzStartRead;
/** endRead marks the last character in the buffer, that has been read
from input */
private int zzEndRead;
/** zzAtEOF == true <=> the scanner is at the EOF */
private boolean zzAtEOF;
/* user code: */
/**
* Token type specifying we're in a JavaScript multi-line comment.
*/
private static final int INTERNAL_IN_JS_MLC = -8;
/**
* Token type specifying we're in an invalid multi-line JS string.
*/
private static final int INTERNAL_IN_JS_STRING_INVALID = -10;
/**
* Token type specifying we're in a valid multi-line JS string.
*/
private static final int INTERNAL_IN_JS_STRING_VALID = -11;
/**
* Token type specifying we're in an invalid multi-line JS single-quoted string.
*/
private static final int INTERNAL_IN_JS_CHAR_INVALID = -12;
/**
* Token type specifying we're in a valid multi-line JS single-quoted string.
*/
private static final int INTERNAL_IN_JS_CHAR_VALID = -13;
/**
* When in the JS_STRING state, whether the current string is valid.
*/
private boolean validJSString;
/**
* The version of JavaScript being highlighted.
*/
private static String jsVersion;
/**
* Language state set on JS tokens. Must be 0.
*/
private static final int LANG_INDEX_DEFAULT = 0;
/**
* Constructor. This must be here because JFlex does not generate a
* no-parameter constructor.
*/
public DartTokenMaker() {
super();
}
static {
jsVersion = "1.0";
}
/**
* 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.
*/
@Override
public void addToken(char[] array, int start, int end, int tokenType, int startOffset) {
super.addToken(array, start,end, tokenType, startOffset);
zzStartRead = zzMarkedPos;
}
/**
* Returns the closest {@link TokenTypes "standard" token type} for a given
* "internal" token type (e.g. one whose value is < 0).
*/
@Override
public int getClosestStandardTokenTypeForInternalType(int type) {
switch (type) {
case INTERNAL_IN_JS_MLC:
return TokenTypes.COMMENT_MULTILINE;
case INTERNAL_IN_JS_STRING_INVALID:
case INTERNAL_IN_JS_STRING_VALID:
case INTERNAL_IN_JS_CHAR_INVALID:
case INTERNAL_IN_JS_CHAR_VALID:
return TokenTypes.LITERAL_STRING_DOUBLE_QUOTE;
}
return type;
}
/**
* Returns the JavaScript version being highlighted.
*
* @return Supported JavaScript version.
* @see #isJavaScriptCompatible(String)
*/
public static String getJavaScriptVersion() {
return jsVersion;
}
/**
* {@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;
validJSString = true;
int languageIndex = LANG_INDEX_DEFAULT;
// Start off in the proper state.
int state = YYINITIAL;
switch (initialTokenType) {
case Token.LITERAL_STRING_DOUBLE_QUOTE:
state = DART_MULTILINE_STRING_DOUBLE;
break;
case Token.LITERAL_CHAR:
state = DART_MULTILINE_STRING_SINGLE;
break;
case INTERNAL_IN_JS_MLC:
state = JS_MLC;
break;
case INTERNAL_IN_JS_STRING_INVALID:
state = JS_STRING;
validJSString = false;
break;
case INTERNAL_IN_JS_STRING_VALID:
state = JS_STRING;
break;
case INTERNAL_IN_JS_CHAR_INVALID:
state = JS_CHAR;
validJSString = false;
break;
case INTERNAL_IN_JS_CHAR_VALID:
state = JS_CHAR;
break;
default:
state = YYINITIAL; // ???
break;
}
setLanguageIndex(languageIndex);
start = text.offset;
s = text;
try {
yyreset(zzReader);
yybegin(state);
return yylex();
} catch (IOException ioe) {
ioe.printStackTrace();
return new TokenImpl();
}
}
/**
* Returns whether features for a specific JS version should be honored
* while highlighting.
*
* @param version JavaScript version required
* @return Whether the JavaScript version is the same or greater than
* version required.
*/
public static boolean isJavaScriptCompatible(String version) {
return jsVersion.compareTo(version) >= 0;
}
/**
* Set the supported JavaScript version because some keywords were
* introduced on or after this version.
*
* @param javaScriptVersion The version of JavaScript to support, such as
* "1.5" or "1.6".
* @see #isJavaScriptCompatible(String)
* @see #getJavaScriptVersion()
*/
public static void setJavaScriptVersion(String javaScriptVersion) {
jsVersion = javaScriptVersion;
}
/**
* 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(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;
zzAtEOF = false;
}
/**
* Creates a new scanner
* There is also a java.io.InputStream version of this constructor.
*
* @param in the java.io.Reader to read input from.
*/
public DartTokenMaker(java.io.Reader in) {
this.zzReader = in;
}
/**
* Creates a new scanner.
* There is also java.io.Reader version of this constructor.
*
* @param in the java.io.Inputstream to read input from.
*/
public DartTokenMaker(java.io.InputStream in) {
this(new java.io.InputStreamReader(in));
}
/**
* Unpacks the compressed character translation table.
*
* @param packed the packed character translation table
* @return the unpacked character translation table
*/
private static char [] zzUnpackCMap(String packed) {
char [] map = new char[0x10000];
int i = 0; /* index in packed string */
int j = 0; /* index in unpacked array */
while (i < 190) {
int count = packed.charAt(i++);
char value = packed.charAt(i++);
do map[j++] = value; while (--count > 0);
}
return map;
}
/**
* Closes the input stream.
*/
public final void yyclose() throws java.io.IOException {
zzAtEOF = true; /* indicate end of file */
zzEndRead = zzStartRead; /* invalidate buffer */
if (zzReader != null)
zzReader.close();
}
/**
* Returns the current lexical state.
*/
public final int yystate() {
return zzLexicalState;
}
/**
* Enters a new lexical state
*
* @param newState the new lexical state
*/
@Override
public final void yybegin(int newState) {
zzLexicalState = newState;
}
/**
* Returns the text matched by the current regular expression.
*/
public final String yytext() {
return new String( zzBuffer, zzStartRead, zzMarkedPos-zzStartRead );
}
/**
* Returns the character at position pos from the
* matched text.
*
* It is equivalent to yytext().charAt(pos), but faster
*
* @param pos the position of the character to fetch.
* A value from 0 to yylength()-1.
*
* @return the character at position pos
*/
public final char yycharat(int pos) {
return zzBuffer[zzStartRead+pos];
}
/**
* Returns the length of the matched text region.
*/
public final int yylength() {
return zzMarkedPos-zzStartRead;
}
/**
* Reports an error that occured while scanning.
*
* In a wellformed scanner (no or only correct usage of
* yypushback(int) and a match-all fallback rule) this method
* will only be called with things that "Can't Possibly Happen".
* If this method is called, something is seriously wrong
* (e.g. a JFlex bug producing a faulty scanner etc.).
*
* Usual syntax/scanner level error handling should be done
* in error fallback rules.
*
* @param errorCode the code of the errormessage to display
*/
private void zzScanError(int errorCode) {
String message;
try {
message = ZZ_ERROR_MSG[errorCode];
}
catch (ArrayIndexOutOfBoundsException e) {
message = ZZ_ERROR_MSG[ZZ_UNKNOWN_ERROR];
}
throw new Error(message);
}
/**
* Pushes the specified amount of characters back into the input stream.
*
* They will be read again by then next call of the scanning method
*
* @param number the number of characters to be read again.
* This number must not be greater than yylength()!
*/
public void yypushback(int number) {
if ( number > yylength() )
zzScanError(ZZ_PUSHBACK_2BIG);
zzMarkedPos -= number;
}
/**
* Resumes scanning until the next regular expression is matched,
* the end of input is encountered or an I/O-Error occurs.
*
* @return the next token
* @exception java.io.IOException if any I/O-Error occurs
*/
public org.fife.ui.rsyntaxtextarea.Token yylex() throws java.io.IOException {
int zzInput;
int zzAction;
// cached fields:
int zzCurrentPosL;
int zzMarkedPosL;
int zzEndReadL = zzEndRead;
char [] zzBufferL = zzBuffer;
char [] zzCMapL = ZZ_CMAP;
int [] zzTransL = ZZ_TRANS;
int [] zzRowMapL = ZZ_ROWMAP;
int [] zzAttrL = ZZ_ATTRIBUTE;
while (true) {
zzMarkedPosL = zzMarkedPos;
zzAction = -1;
zzCurrentPosL = zzCurrentPos = zzStartRead = zzMarkedPosL;
zzState = zzLexicalState;
zzForAction: {
while (true) {
if (zzCurrentPosL < zzEndReadL)
zzInput = zzBufferL[zzCurrentPosL++];
else if (zzAtEOF) {
zzInput = YYEOF;
break zzForAction;
}
else {
// store back cached positions
zzCurrentPos = zzCurrentPosL;
zzMarkedPos = zzMarkedPosL;
boolean eof = zzRefill();
// get translated positions and possibly new buffer
zzCurrentPosL = zzCurrentPos;
zzMarkedPosL = zzMarkedPos;
zzBufferL = zzBuffer;
zzEndReadL = zzEndRead;
if (eof) {
zzInput = YYEOF;
break zzForAction;
}
else {
zzInput = zzBufferL[zzCurrentPosL++];
}
}
int zzNext = zzTransL[ zzRowMapL[zzState] + zzCMapL[zzInput] ];
if (zzNext == -1) break zzForAction;
zzState = zzNext;
int zzAttributes = zzAttrL[zzState];
if ( (zzAttributes & 1) == 1 ) {
zzAction = zzState;
zzMarkedPosL = zzCurrentPosL;
if ( (zzAttributes & 8) == 8 ) break zzForAction;
}
}
}
// store back cached position
zzMarkedPos = zzMarkedPosL;
switch (zzAction < 0 ? zzAction : ZZ_ACTION[zzAction]) {
case 11:
{ addToken(start,zzStartRead-1, Token.ERROR_STRING_DOUBLE); addNullToken(); return firstToken;
}
case 44: break;
case 5:
{ addToken(Token.IDENTIFIER);
}
case 45: break;
case 41:
{ addToken(Token.LITERAL_BOOLEAN);
}
case 46: break;
case 39:
{ addToken(start,zzStartRead+2, Token.LITERAL_CHAR); yybegin(YYINITIAL);
}
case 47: break;
case 30:
{ /* Skip all escaped chars. */
}
case 48: break;
case 32:
{ /* Invalid latin-1 character \xXX */ validJSString = false;
}
case 49: break;
case 38:
{ addToken(start,zzStartRead+2, Token.LITERAL_STRING_DOUBLE_QUOTE); yybegin(YYINITIAL);
}
case 50: break;
case 23:
{ addToken(Token.ERROR_NUMBER_FORMAT);
}
case 51: break;
case 17:
{ addToken(start,zzStartRead-1, Token.COMMENT_MULTILINE); addEndToken(INTERNAL_IN_JS_MLC); return firstToken;
}
case 52: break;
case 36:
{ addToken(Token.FUNCTION);
}
case 53: break;
case 28:
{ addToken(Token.ANNOTATION);
}
case 54: break;
case 2:
{ addToken(Token.ERROR_IDENTIFIER);
}
case 55: break;
case 27:
{ start = zzMarkedPos-2; yybegin(JS_MLC);
}
case 56: break;
case 13:
{ int type = validJSString ? Token.LITERAL_STRING_DOUBLE_QUOTE : Token.ERROR_STRING_DOUBLE; addToken(start,zzStartRead, type); yybegin(YYINITIAL);
}
case 57: break;
case 37:
{ start = zzMarkedPos-3; yybegin(DART_MULTILINE_STRING_DOUBLE);
}
case 58: break;
case 16:
{ int type = validJSString ? Token.LITERAL_CHAR : Token.ERROR_CHAR; addToken(start,zzStartRead, type); yybegin(YYINITIAL);
}
case 59: break;
case 14:
{ addToken(start,zzStartRead-1, Token.ERROR_CHAR); addNullToken(); return firstToken;
}
case 60: break;
case 26:
{ start = zzMarkedPos-2; yybegin(JS_EOL_COMMENT);
}
case 61: break;
case 20:
{ /* Skip escaped chars, handles case: '\"""'. */
}
case 62: break;
case 35:
{ start = zzMarkedPos-3; yybegin(DART_MULTILINE_STRING_SINGLE);
}
case 63: break;
case 25:
{ addToken(Token.LITERAL_NUMBER_HEXADECIMAL);
}
case 64: break;
case 12:
{ /* Line ending in '\' => continue to next line. */
if (validJSString) {
addToken(start,zzStartRead, Token.LITERAL_STRING_DOUBLE_QUOTE);
addEndToken(INTERNAL_IN_JS_STRING_VALID);
}
else {
addToken(start,zzStartRead, Token.ERROR_STRING_DOUBLE);
addEndToken(INTERNAL_IN_JS_STRING_INVALID);
}
return firstToken;
}
case 65: break;
case 3:
{ addToken(Token.WHITESPACE);
}
case 66: break;
case 34:
{ addToken(Token.DATA_TYPE);
}
case 67: break;
case 33:
{ yybegin(YYINITIAL); addToken(start,zzStartRead+1, Token.COMMENT_MULTILINE);
}
case 68: break;
case 15:
{ /* Line ending in '\' => continue to next line. */
if (validJSString) {
addToken(start,zzStartRead, Token.LITERAL_CHAR);
addEndToken(INTERNAL_IN_JS_CHAR_VALID);
}
else {
addToken(start,zzStartRead, Token.ERROR_CHAR);
addEndToken(INTERNAL_IN_JS_CHAR_INVALID);
}
return firstToken;
}
case 69: break;
case 6:
{ addToken(Token.LITERAL_NUMBER_DECIMAL_INT);
}
case 70: break;
case 10:
{ start = zzMarkedPos-1; validJSString = true; yybegin(JS_STRING);
}
case 71: break;
case 31:
{ /* Invalid Unicode character \\uXXXX */ validJSString = false;
}
case 72: break;
case 22:
{ /* Skip escaped chars, handles case: "\'''". */
}
case 73: break;
case 9:
{ start = zzMarkedPos-1; validJSString = true; yybegin(JS_CHAR);
}
case 74: break;
case 29:
{ addToken(Token.RESERVED_WORD);
}
case 75: break;
case 43:
{ addToken(Token.RESERVED_WORD_2);
}
case 76: break;
case 18:
{ addToken(start,zzStartRead-1, Token.COMMENT_EOL); addNullToken(); return firstToken;
}
case 77: break;
case 8:
{ addToken(Token.SEPARATOR);
}
case 78: break;
case 4:
{ addNullToken(); return firstToken;
}
case 79: break;
case 7:
{ addToken(Token.OPERATOR);
}
case 80: break;
case 21:
{ addToken(start,zzStartRead-1, Token.LITERAL_CHAR); return firstToken;
}
case 81: break;
case 24:
{ addToken(Token.LITERAL_NUMBER_FLOAT);
}
case 82: break;
case 42:
{ int temp=zzStartRead; addToken(start,zzStartRead-1, Token.COMMENT_EOL); addHyperlinkToken(temp,zzMarkedPos-1, Token.COMMENT_EOL); start = zzMarkedPos;
}
case 83: break;
case 40:
{ addToken(Token.COMMENT_MULTILINE);
}
case 84: break;
case 1:
{
}
case 85: break;
case 19:
{ addToken(start,zzStartRead-1, Token.LITERAL_STRING_DOUBLE_QUOTE); return firstToken;
}
case 86: break;
default:
if (zzInput == YYEOF && zzStartRead == zzCurrentPos) {
zzAtEOF = true;
switch (zzLexicalState) {
case JS_STRING: {
addToken(start,zzStartRead-1, Token.ERROR_STRING_DOUBLE); addNullToken(); return firstToken;
}
case 601: break;
case JS_CHAR: {
addToken(start,zzStartRead-1, Token.ERROR_CHAR); addNullToken(); return firstToken;
}
case 602: break;
case DART_MULTILINE_STRING_DOUBLE: {
addToken(start,zzStartRead-1, Token.LITERAL_STRING_DOUBLE_QUOTE); return firstToken;
}
case 603: break;
case JS_EOL_COMMENT: {
addToken(start,zzStartRead-1, Token.COMMENT_EOL); addNullToken(); return firstToken;
}
case 604: break;
case YYINITIAL: {
addNullToken(); return firstToken;
}
case 605: break;
case JS_MLC: {
addToken(start,zzStartRead-1, Token.COMMENT_MULTILINE); addEndToken(INTERNAL_IN_JS_MLC); return firstToken;
}
case 606: break;
case DART_MULTILINE_STRING_SINGLE: {
addToken(start,zzStartRead-1, Token.LITERAL_CHAR); return firstToken;
}
case 607: break;
default:
return null;
}
}
else {
zzScanError(ZZ_NO_MATCH);
}
}
}
}
}