org.jeditor.scripts.tokenmarkers

Class FortranTokenMarker

java.lang.Object

org.jeditor.scripts.base.TokenMarker

org.jeditor.scripts.tokenmarkers.FortranTokenMarker

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.

Nested Class Summary

Nested classes/interfaces inherited from class org.jeditor.scripts.base.TokenMarker

TokenMarker.LineInfo

Field Summary

Fields inherited from class org.jeditor.scripts.base.TokenMarker

currentTokenOffset, firstToken, lastLine, lastToken, length, lineIndex, lineInfo, nextLineRequested, offsetGap, syntaxListener

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
static KeywordMap	getKeywords() Return the keyword map.
protected byte	markTokensImpl(byte token, javax.swing.text.Segment line, int lineIndex, boolean externalTokenizer) Splits a line up into tokens.

Methods inherited from class org.jeditor.scripts.base.TokenMarker

addToken, deleteLines, ensureCapacity, getLineCount, getLineIndex, getMaxLineWidth, getOffsetGap, getSyntaxListener, insertLines, isNextLineRequested, markTokens, markTokens, setLineWidth, setOffsetGap, setSyntaxListener, supportsMultilineTokens

Methods inherited from class java.lang.Object

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

Constructor Detail

FortranTokenMarker

public FortranTokenMarker()

Constructor, with a wee bit of initialization.

Method Detail

getKeywords

public static KeywordMap getKeywords()

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

Returns:

the keyword map

markTokensImpl

protected byte markTokensImpl(byte token,
                              javax.swing.text.Segment line,
                              int lineIndex,
                              boolean externalTokenizer)

Splits a line up into tokens.

Specified by:

markTokensImpl in class TokenMarker

Parameters:

token - The initial token type for this line

line - The line to be tokenized

lineIndex - The index of the line in the document, starting at 0

externalTokenizer - true for an external tokenizer

Returns:

The initial token type for the next line