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org.gjt.sp.jedit.syntax
Class FortranTokenMarker  

java.lang.Object
  org.gjt.sp.jedit.syntax.TokenMarker
      org.gjt.sp.jedit.syntax.FortranTokenMarker

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public class FortranTokenMarker

extends TokenMarker

Custom TokenMarker for UNISYS's ASCII FORTRAN 77. Characteristics of this dialect are:

• Fixed column format, with
  • comment character ( 'C'|'c'|'*' ) in column 1,
  • labels (numeric) in column 1-5,
  • continuation character ( any nonblank ) in column 6,
  • logical end of line after column 72.
• Nonstandard block comment character ( '@' ) in any column,
• Some nonstandard functions: BITS, BOOL, INDEX, TRMLEN

It should be easy enough to adapt this class for minor variations in the dialect so long as the format is the classic fixed column format. As this scanner is highly optimized for the fixed column format, it is probably not readily adaptable for freeform FORTRAN code.

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Nested Class Summary

 

Nested classes inherited from class org.gjt.sp.jedit.syntax.TokenMarker

TokenMarker.LineInfo

 

Field Summary
private static KeywordMap	fortranKeywords
private  KeywordMap	keywords
private  int	lastOffset
private static int	MAYBE_KEYWORD_FIRST
private static int	MAYBE_KEYWORD_MORE
private static java.lang.String	S_E_P

 

Fields inherited from class org.gjt.sp.jedit.syntax.TokenMarker

firstToken, lastLine, lastToken, length, lineInfo, nextLineRequested

 

Constructor Summary

FortranTokenMarker()           Constructor, with a wee bit of initialization.

 

Method Summary
private  boolean	checkStartEditPage(javax.swing.text.Segment line)
private  void	doKeyword(javax.swing.text.Segment line, int keywordEnd)           Add the latest token to the current list.
static KeywordMap	getKeywords()           Return the keyword map.
private  void	guardedAddToken(int len, byte token)           Call addToken only if the length of the token is not 0.
byte	markTokensImpl(byte token, javax.swing.text.Segment line, int lineIndex)           Implementation of code to mark tokens.

 

Methods inherited from class org.gjt.sp.jedit.syntax.TokenMarker

addToken, addToken, deleteLines, ensureCapacity, getLineCount, getMaxLineWidth, insertLines, isNextLineRequested, markTokens, setLineWidth, supportsMultilineTokens

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

MAYBE_KEYWORD_FIRST

private static final int MAYBE_KEYWORD_FIRST

See Also:

Constant Field Values

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MAYBE_KEYWORD_MORE

private static final int MAYBE_KEYWORD_MORE

See Also:

Constant Field Values

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S_E_P

private static final java.lang.String S_E_P

See Also:

Constant Field Values

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fortranKeywords

private static KeywordMap fortranKeywords

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keywords

private KeywordMap keywords

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lastOffset

private int lastOffset

Constructor Detail

FortranTokenMarker

public FortranTokenMarker()

Constructor, with a wee bit of initialization.

Method Detail

markTokensImpl

public byte markTokensImpl(byte token,
                           javax.swing.text.Segment line,
                           int lineIndex)

Implementation of code to mark tokens.

Specified by:

markTokensImpl in class TokenMarker

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checkStartEditPage

private boolean checkStartEditPage(javax.swing.text.Segment line)

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doKeyword

private void doKeyword(javax.swing.text.Segment line,
                       int keywordEnd)

Add the latest token to the current list. Process 'START' as a special case.

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guardedAddToken

private void guardedAddToken(int len,
                             byte token)

Call addToken only if the length of the token is not 0.

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getKeywords

public static KeywordMap getKeywords()

Return the keyword map. It's lazily initialized on the first call.

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