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RSyntaxTextArea is the syntax highlighting text editor for Swing applications. Features include syntax highlighting for 40+ languages, code folding, code completion, regex find and replace, macros, code templates, undo/redo, line numbering and bracket matching.
/*
* 03/23/2005
*
* FortranTokenMaker.java - Scanner for the Fortran 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 Fortran programming language.
*
* 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
FortranTokenMaker.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 0.4
*
*/
%%
%public
%class FortranTokenMaker
%extends AbstractJFlexTokenMaker
%unicode
%ignorecase
%type org.fife.ui.rsyntaxtextarea.Token
%{
/**
* Constructor. We must have this here as there is no default,
* no-parameter constructor generated by JFlex.
*/
public FortranTokenMaker() {
super();
}
/**
* 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;
}
/**
* {@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;
// Start off in the proper state.
int state = Token.NULL;
switch (initialTokenType) {
case Token.LITERAL_STRING_DOUBLE_QUOTE:
state = STRING;
start = text.offset;
break;
case Token.LITERAL_CHAR:
state = CHAR;
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();
}
}
/**
* 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 = zzPushbackPos = s.offset;
zzLexicalState = YYINITIAL;
zzReader = reader;
zzAtBOL = true;
zzAtEOF = false;
}
%}
LineTerminator = (\n)
WhiteSpace = ([ \t\f])
Column1CommentBegin = ([C\*])
Column1Comment2Begin = (D)
AnywhereCommentBegin = (\!)
Identifier = ([A-Za-z0-9_$]+)
StringDelimiter = (\")
CharDelimiter = (\')
Operators1 = ("<"|">"|"<="|">="|"&"|"/="|"==")
Operators2 = (\.(lt|gt|eq|ne|le|ge|and|or)\.)
Operator = ({Operators1}|{Operators2})
Boolean = (\.(true|false)\.)
%state STRING
%state CHAR
%%
/* Keywords */
"INCLUDE" { addToken(Token.RESERVED_WORD); }
"PROGRAM" { addToken(Token.RESERVED_WORD); }
"MODULE" { addToken(Token.RESERVED_WORD); }
"SUBROUTINE" { addToken(Token.RESERVED_WORD); }
"FUNCTION" { addToken(Token.RESERVED_WORD); }
"CONTAINS" { addToken(Token.RESERVED_WORD); }
"USE" { addToken(Token.RESERVED_WORD); }
"CALL" { addToken(Token.RESERVED_WORD); }
"RETURN" { addToken(Token.RESERVED_WORD); }
"IMPLICIT" { addToken(Token.RESERVED_WORD); }
"EXPLICIT" { addToken(Token.RESERVED_WORD); }
"NONE" { addToken(Token.RESERVED_WORD); }
"DATA" { addToken(Token.RESERVED_WORD); }
"PARAMETER" { addToken(Token.RESERVED_WORD); }
"ALLOCATE" { addToken(Token.RESERVED_WORD); }
"ALLOCATABLE" { addToken(Token.RESERVED_WORD); }
"ALLOCATED" { addToken(Token.RESERVED_WORD); }
"DEALLOCATE" { addToken(Token.RESERVED_WORD); }
"INTEGER" { addToken(Token.RESERVED_WORD); }
"REAL" { addToken(Token.RESERVED_WORD); }
"DOUBLE" { addToken(Token.RESERVED_WORD); }
"PRECISION" { addToken(Token.RESERVED_WORD); }
"COMPLEX" { addToken(Token.RESERVED_WORD); }
"LOGICAL" { addToken(Token.RESERVED_WORD); }
"CHARACTER" { addToken(Token.RESERVED_WORD); }
"DIMENSION" { addToken(Token.RESERVED_WORD); }
"KIND" { addToken(Token.RESERVED_WORD); }
"CASE" { addToken(Token.RESERVED_WORD); }
"SELECT" { addToken(Token.RESERVED_WORD); }
"DEFAULT" { addToken(Token.RESERVED_WORD); }
"CONTINUE" { addToken(Token.RESERVED_WORD); }
"CYCLE" { addToken(Token.RESERVED_WORD); }
"DO" { addToken(Token.RESERVED_WORD); }
"WHILE" { addToken(Token.RESERVED_WORD); }
"ELSE" { addToken(Token.RESERVED_WORD); }
"IF" { addToken(Token.RESERVED_WORD); }
"ELSEIF" { addToken(Token.RESERVED_WORD); }
"THEN" { addToken(Token.RESERVED_WORD); }
"ELSEWHERE" { addToken(Token.RESERVED_WORD); }
"END" { addToken(Token.RESERVED_WORD); }
"ENDIF" { addToken(Token.RESERVED_WORD); }
"ENDDO" { addToken(Token.RESERVED_WORD); }
"FORALL" { addToken(Token.RESERVED_WORD); }
"WHERE" { addToken(Token.RESERVED_WORD); }
"EXIT" { addToken(Token.RESERVED_WORD); }
"GOTO" { addToken(Token.RESERVED_WORD); }
"PAUSE" { addToken(Token.RESERVED_WORD); }
"STOP" { addToken(Token.RESERVED_WORD); }
"BACKSPACE" { addToken(Token.RESERVED_WORD); }
"CLOSE" { addToken(Token.RESERVED_WORD); }
"ENDFILE" { addToken(Token.RESERVED_WORD); }
"INQUIRE" { addToken(Token.RESERVED_WORD); }
"OPEN" { addToken(Token.RESERVED_WORD); }
"PRINT" { addToken(Token.RESERVED_WORD); }
"READ" { addToken(Token.RESERVED_WORD); }
"REWIND" { addToken(Token.RESERVED_WORD); }
"WRITE" { addToken(Token.RESERVED_WORD); }
"FORMAT" { addToken(Token.RESERVED_WORD); }
"AIMAG" { addToken(Token.RESERVED_WORD); }
"AINT" { addToken(Token.RESERVED_WORD); }
"AMAX0" { addToken(Token.RESERVED_WORD); }
"AMIN0" { addToken(Token.RESERVED_WORD); }
"ANINT" { addToken(Token.RESERVED_WORD); }
"CEILING" { addToken(Token.RESERVED_WORD); }
"CMPLX" { addToken(Token.RESERVED_WORD); }
"CONJG" { addToken(Token.RESERVED_WORD); }
"DBLE" { addToken(Token.RESERVED_WORD); }
"DCMPLX" { addToken(Token.RESERVED_WORD); }
"DFLOAT" { addToken(Token.RESERVED_WORD); }
"DIM" { addToken(Token.RESERVED_WORD); }
"DPROD" { addToken(Token.RESERVED_WORD); }
"FLOAT" { addToken(Token.RESERVED_WORD); }
"FLOOR" { addToken(Token.RESERVED_WORD); }
"IFIX" { addToken(Token.RESERVED_WORD); }
"IMAG" { addToken(Token.RESERVED_WORD); }
"INT" { addToken(Token.RESERVED_WORD); }
"LOGICAL" { addToken(Token.RESERVED_WORD); }
"MODULO" { addToken(Token.RESERVED_WORD); }
"NINT" { addToken(Token.RESERVED_WORD); }
"REAL" { addToken(Token.RESERVED_WORD); }
"SIGN" { addToken(Token.RESERVED_WORD); }
"SNGL" { addToken(Token.RESERVED_WORD); }
"TRANSFER" { addToken(Token.RESERVED_WORD); }
"ZEXT" { addToken(Token.RESERVED_WORD); }
"ABS" { addToken(Token.RESERVED_WORD); }
"ACOS" { addToken(Token.RESERVED_WORD); }
"AIMAG" { addToken(Token.RESERVED_WORD); }
"AINT" { addToken(Token.RESERVED_WORD); }
"ALOG" { addToken(Token.RESERVED_WORD); }
"ALOG10" { addToken(Token.RESERVED_WORD); }
"AMAX0" { addToken(Token.RESERVED_WORD); }
"AMAX1" { addToken(Token.RESERVED_WORD); }
"AMIN0" { addToken(Token.RESERVED_WORD); }
"AMIN1" { addToken(Token.RESERVED_WORD); }
"AMOD" { addToken(Token.RESERVED_WORD); }
"ANINT" { addToken(Token.RESERVED_WORD); }
"ASIN" { addToken(Token.RESERVED_WORD); }
"ATAN" { addToken(Token.RESERVED_WORD); }
"ATAN2" { addToken(Token.RESERVED_WORD); }
"CABS" { addToken(Token.RESERVED_WORD); }
"CCOS" { addToken(Token.RESERVED_WORD); }
"CHAR" { addToken(Token.RESERVED_WORD); }
"CLOG" { addToken(Token.RESERVED_WORD); }
"CMPLX" { addToken(Token.RESERVED_WORD); }
"CONJG" { addToken(Token.RESERVED_WORD); }
"COS" { addToken(Token.RESERVED_WORD); }
"COSH" { addToken(Token.RESERVED_WORD); }
"CSIN" { addToken(Token.RESERVED_WORD); }
"CSQRT" { addToken(Token.RESERVED_WORD); }
"DABS" { addToken(Token.RESERVED_WORD); }
"DACOS" { addToken(Token.RESERVED_WORD); }
"DASIN" { addToken(Token.RESERVED_WORD); }
"DATAN" { addToken(Token.RESERVED_WORD); }
"DATAN2" { addToken(Token.RESERVED_WORD); }
"DBLE" { addToken(Token.RESERVED_WORD); }
"DCOS" { addToken(Token.RESERVED_WORD); }
"DCOSH" { addToken(Token.RESERVED_WORD); }
"DDIM" { addToken(Token.RESERVED_WORD); }
"DEXP" { addToken(Token.RESERVED_WORD); }
"DIM" { addToken(Token.RESERVED_WORD); }
"DINT" { addToken(Token.RESERVED_WORD); }
"DLOG" { addToken(Token.RESERVED_WORD); }
"DLOG10" { addToken(Token.RESERVED_WORD); }
"DMAX1" { addToken(Token.RESERVED_WORD); }
"DMIN1" { addToken(Token.RESERVED_WORD); }
"DMOD" { addToken(Token.RESERVED_WORD); }
"DNINT" { addToken(Token.RESERVED_WORD); }
"DPROD" { addToken(Token.RESERVED_WORD); }
"DREAL" { addToken(Token.RESERVED_WORD); }
"DSIGN" { addToken(Token.RESERVED_WORD); }
"DSIN" { addToken(Token.RESERVED_WORD); }
"DSINH" { addToken(Token.RESERVED_WORD); }
"DSQRT" { addToken(Token.RESERVED_WORD); }
"DTAN" { addToken(Token.RESERVED_WORD); }
"DTANH" { addToken(Token.RESERVED_WORD); }
"EXP" { addToken(Token.RESERVED_WORD); }
"FLOAT" { addToken(Token.RESERVED_WORD); }
"IABS" { addToken(Token.RESERVED_WORD); }
"ICHAR" { addToken(Token.RESERVED_WORD); }
"IDIM" { addToken(Token.RESERVED_WORD); }
"IDINT" { addToken(Token.RESERVED_WORD); }
"IDNINT" { addToken(Token.RESERVED_WORD); }
"IFIX" { addToken(Token.RESERVED_WORD); }
"INDEX" { addToken(Token.RESERVED_WORD); }
"INT" { addToken(Token.RESERVED_WORD); }
"ISIGN" { addToken(Token.RESERVED_WORD); }
"LEN" { addToken(Token.RESERVED_WORD); }
"LGE" { addToken(Token.RESERVED_WORD); }
"LGT" { addToken(Token.RESERVED_WORD); }
"LLE" { addToken(Token.RESERVED_WORD); }
"LLT" { addToken(Token.RESERVED_WORD); }
"LOG" { addToken(Token.RESERVED_WORD); }
"LOG10" { addToken(Token.RESERVED_WORD); }
"MAX" { addToken(Token.RESERVED_WORD); }
"MAX0" { addToken(Token.RESERVED_WORD); }
"MAX1" { addToken(Token.RESERVED_WORD); }
"MIN" { addToken(Token.RESERVED_WORD); }
"MIN0" { addToken(Token.RESERVED_WORD); }
"MIN1" { addToken(Token.RESERVED_WORD); }
"MOD" { addToken(Token.RESERVED_WORD); }
"NINT" { addToken(Token.RESERVED_WORD); }
"REAL" { addToken(Token.RESERVED_WORD); }
"SIGN" { addToken(Token.RESERVED_WORD); }
"SIN" { addToken(Token.RESERVED_WORD); }
"SINH" { addToken(Token.RESERVED_WORD); }
"SNGL" { addToken(Token.RESERVED_WORD); }
"SQRT" { addToken(Token.RESERVED_WORD); }
"TAN" { addToken(Token.RESERVED_WORD); }
"TANH" { addToken(Token.RESERVED_WORD); }
{
{LineTerminator} { addNullToken(); return firstToken; }
{WhiteSpace}+ { addToken(Token.WHITESPACE); }
/* String/Character Literals. */
{CharDelimiter} { start = zzMarkedPos-1; yybegin(CHAR); }
{StringDelimiter} { start = zzMarkedPos-1; yybegin(STRING); }
/* Comment Literals. */
/* Note that we cannot combine these as JFLex doesn't like combining an */
/* expression containing the beginning-of-line character '^'. */
{Column1CommentBegin} {
// Since we change zzStartRead, we have the unfortunate
// side-effect of not being able to use the '^' operator.
// So we must check whether we're really at the beginning
// of the line ourselves...
if (zzStartRead==s.offset) {
addToken(zzStartRead,zzEndRead, Token.COMMENT_EOL);
addNullToken();
return firstToken;
}
else {
addToken(Token.IDENTIFIER);
}
}
{Column1Comment2Begin} {
// Since we change zzStartRead, we have the unfortunate
// side-effect of not being able to use the '^' operator.
// So we must check whether we're really at the beginning
// of the line ourselves...
if (zzStartRead==s.offset) {
addToken(zzStartRead,zzEndRead, Token.COMMENT_DOCUMENTATION);
addNullToken();
return firstToken;
}
else {
addToken(Token.IDENTIFIER);
}
}
{AnywhereCommentBegin} { addToken(zzStartRead,zzEndRead, Token.COMMENT_EOL); addNullToken(); return firstToken; }
/* Operators. */
{Operator} { addToken(Token.OPERATOR); }
/* Boolean literals. */
{Boolean} { addToken(Token.LITERAL_BOOLEAN); }
{Identifier} { addToken(Token.IDENTIFIER); }
/* Ended with a line not in a string or char literal. */
<> { addNullToken(); return firstToken; }
/* Catch any other (unhandled) characters. */
. { addToken(Token.IDENTIFIER); }
}
{
[^\'\n]* {}
\' { yybegin(YYINITIAL); addToken(start,zzStartRead, Token.LITERAL_CHAR); }
\n { addToken(start,zzStartRead-1, Token.LITERAL_CHAR); return firstToken; }
<> { addToken(start,zzStartRead-1, Token.LITERAL_CHAR); return firstToken; }
}
{
[^\"\n]* {}
\" { yybegin(YYINITIAL); addToken(start,zzStartRead, Token.LITERAL_STRING_DOUBLE_QUOTE); }
\n { addToken(start,zzStartRead-1, Token.LITERAL_STRING_DOUBLE_QUOTE); return firstToken; }
<> { addToken(start,zzStartRead-1, Token.LITERAL_STRING_DOUBLE_QUOTE); return firstToken; }
}