org.fife.ui.rsyntaxtextarea
Interface TokenMaker

All Known Implementing Classes:

AbstractJFlexCTokenMaker, AbstractJFlexTokenMaker, AbstractMarkupTokenMaker, AbstractTokenMaker, ActionScriptTokenMaker, AssemblerX86TokenMaker, BBCodeTokenMaker, ClojureTokenMaker, CPlusPlusTokenMaker, CSharpTokenMaker, CSSTokenMaker, CTokenMaker, DartTokenMaker, DelphiTokenMaker, DtdTokenMaker, DTokenMaker, FortranTokenMaker, GroovyTokenMaker, HtaccessTokenMaker, HTMLTokenMaker, JavaScriptTokenMaker, JavaTokenMaker, JshintrcTokenMaker, JsonTokenMaker, JSPTokenMaker, LatexTokenMaker, LessTokenMaker, LispTokenMaker, LuaTokenMaker, MakefileTokenMaker, MxmlTokenMaker, NSISTokenMaker, PerlTokenMaker, PHPTokenMaker, PlainTextTokenMaker, PropertiesFileTokenMaker, PythonTokenMaker, RubyTokenMaker, SASTokenMaker, ScalaTokenMaker, SQLTokenMaker, TclTokenMaker, TokenMakerBase, UnixShellTokenMaker, VisualBasicTokenMaker, WindowsBatchTokenMaker, XMLTokenMaker

public interface TokenMaker

An implementation of TokenMaker is a class that turns text into a linked list of Tokens for syntax highlighting in a particular language.

See Also:

Token, AbstractTokenMaker

Method Summary

void	addNullToken() Adds a null token to the end of the current linked list of tokens.
void	addToken(char[] array, int start, int end, int tokenType, int startOffset) Adds the token specified to the current linked list of tokens.
int	getClosestStandardTokenTypeForInternalType(int type) Returns the closest "standard" token type for a given "internal" token type (e.g.
boolean	getCurlyBracesDenoteCodeBlocks(int languageIndex) Returns whether this programming language uses curly braces ('{' and '}') to denote code blocks.
javax.swing.Action	getInsertBreakAction() Returns an action to handle "insert break" key presses (i.e.
int	getLastTokenTypeOnLine(javax.swing.text.Segment text, int initialTokenType) Returns the last token on this line's type if the token is "unfinished", or TokenTypes.NULL if it was finished.
java.lang.String[]	getLineCommentStartAndEnd(int languageIndex) Returns the text to place at the beginning and end of a line to "comment" it in this programming language.
boolean	getMarkOccurrencesOfTokenType(int type) Returns whether tokens of the specified type should have "mark occurrences" enabled for the current programming language.
OccurrenceMarker	getOccurrenceMarker() Returns the object in charge of marking all occurrences of the token at the current caret position, if it is a relevant token.
boolean	getShouldIndentNextLineAfter(Token token) If a line ends in the specified token, this method returns whether a new line inserted after that line should be indented.
Token	getTokenList(javax.swing.text.Segment text, int initialTokenType, int startOffset) Returns the first token in the linked list of tokens generated from text.
boolean	isIdentifierChar(int languageIndex, char ch) Returns whether a character could be part of an "identifier" token in a specific language.
boolean	isMarkupLanguage() Returns whether this language is a markup language.

Method Detail

addNullToken

void addNullToken()

Adds a null token to the end of the current linked list of tokens. This should be put at the end of the linked list whenever the last token on the current line is NOT a multi-line token.

addToken

void addToken(char[] array,
              int start,
              int end,
              int tokenType,
              int startOffset)

Adds the token specified to the current linked list of tokens.

Parameters:

array - The character array from which to get the text.

start - Start offset in segment of token.

end - End offset in segment of token.

tokenType - The token's type.

startOffset - The offset in the document at which this token occurs.

getClosestStandardTokenTypeForInternalType

int getClosestStandardTokenTypeForInternalType(int type)

Returns the closest "standard" token type for a given "internal" token type (e.g. one whose value is < 0).

Parameters:

type - The token type.

Returns:

The closest "standard" token type. If a mapping is not defined for this language, then type is returned.

getCurlyBracesDenoteCodeBlocks

boolean getCurlyBracesDenoteCodeBlocks(int languageIndex)

Returns whether this programming language uses curly braces ('{' and '}') to denote code blocks.

Parameters:

languageIndex - The language index at the offset in question. Since some TokenMakers effectively have nested languages (such as JavaScript in HTML), this parameter tells the TokenMaker what sub-language to look at.

Returns:

Whether curly braces denote code blocks.

getLastTokenTypeOnLine

int getLastTokenTypeOnLine(javax.swing.text.Segment text,
                           int initialTokenType)

Returns the last token on this line's type if the token is "unfinished", or TokenTypes.NULL if it was finished. For example, if C-style syntax highlighting is being implemented, and text contained a line of code that contained the beginning of a comment but no end-comment marker ("*\/"), then this method would return TokenTypes.COMMENT_MULTILINE for that line. This is useful for doing syntax highlighting.

Parameters:

text - The line of tokens to examine.

initialTokenType - The token type to start with (i.e., the value of getLastTokenTypeOnLine for the line before text).

Returns:

The last token on this line's type, or TokenTypes.NULL if the line was completed.

getLineCommentStartAndEnd

java.lang.String[] getLineCommentStartAndEnd(int languageIndex)

Returns the text to place at the beginning and end of a line to "comment" it in this programming language.

Parameters:

languageIndex - The language index at the offset in question. Since some TokenMakers effectively have nested languages (such as JavaScript in HTML), this parameter tells the TokenMaker what sub-language to look at.

Returns:

The start and end strings to add to a line to "comment" it out. A null value for either means there is no string to add for that part. A value of null for the array means this language does not support commenting/uncommenting lines.

getInsertBreakAction

javax.swing.Action getInsertBreakAction()

Returns an action to handle "insert break" key presses (i.e. Enter).

Returns:

The action, or null if the default action should be used.

getMarkOccurrencesOfTokenType

boolean getMarkOccurrencesOfTokenType(int type)

Returns whether tokens of the specified type should have "mark occurrences" enabled for the current programming language.

Parameters:

type - The token type.

Returns:

Whether tokens of this type should have "mark occurrences" enabled.

getOccurrenceMarker

OccurrenceMarker getOccurrenceMarker()

Returns the object in charge of marking all occurrences of the token at the current caret position, if it is a relevant token. If null is returned, a default OccurrenceMarker is used.

Returns:

The occurrence marker for this language, or null for none.

getShouldIndentNextLineAfter

boolean getShouldIndentNextLineAfter(Token token)

If a line ends in the specified token, this method returns whether a new line inserted after that line should be indented.

Parameters:

token - The token the previous line ends with.

Returns:

Whether the next line should be indented.

getTokenList

Token getTokenList(javax.swing.text.Segment text,
                   int initialTokenType,
                   int startOffset)

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.

Parameters:

text - The text from which to get tokens.

initialTokenType - The token type we should start with.

startOffset - The offset into the document at which text starts.

Returns:

The first Token in a linked list representing the syntax highlighted text.

isIdentifierChar

boolean isIdentifierChar(int languageIndex,
                         char ch)

Returns whether a character could be part of an "identifier" token in a specific language. This is used to identify such things as the bounds of the "word" to select on double-clicking.

Parameters:

languageIndex - The language index the character was found in.

ch - The character.

Returns:

Whether the character could be part of an "identifier" token.

isMarkupLanguage

boolean isMarkupLanguage()

Returns whether this language is a markup language.

Returns:

Whether this language is markup.