Package groovy.ui.text

## Class StructuredSyntaxDocumentFilter

- java.lang.Object
- - javax.swing.text.DocumentFilter
  - - groovy.ui.text.StructuredSyntaxDocumentFilter

- Direct Known Subclasses:
    `GroovyFilter`

      public class StructuredSyntaxDocumentFilter
      extends DocumentFilter

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `StructuredSyntaxDocumentFilter.LexerNode` |
    `protected class` | `StructuredSyntaxDocumentFilter.MultiLineRun` |

    - ### Nested classes/interfaces inherited from class javax.swing.text.DocumentFilter

      `DocumentFilter.FilterBypass`

  - ### Field Summary

    Fields
    Modifier and Type | Field | Description
    --- | --- | ---
    `protected StructuredSyntaxDocumentFilter.LexerNode` | `lexer` | The root of the lexical parsing tree.
    `protected SortedSet` | `mlTextRunSet` | The position tree of multi-line comments.
    `protected DefaultStyledDocument` | `styledDocument` |
    `static String` | `TAB_REPLACEMENT` |

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `StructuredSyntaxDocumentFilter​(DefaultStyledDocument document)` | Creates a new instance of StructuredSyntaxDocumentFilter

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `StructuredSyntaxDocumentFilter.LexerNode` | `createLexerNode()` | Create a new LexerNode for adding to root.
    `StructuredSyntaxDocumentFilter.LexerNode` | `getRootNode()` | Get the root node for lexing the document.
    `void` | `insertString​(DocumentFilter.FilterBypass fb, int offset, String text, AttributeSet attrs)` | Insert a string into the document, and then parse it if the parser has been set.
    `protected void` | `parseDocument​(int offset, int length)` | Parse the Document to update the character styles given an initial start position.
    `void` | `remove​(DocumentFilter.FilterBypass fb, int offset, int length)` | Remove a string from the document, and then parse it if the parser has been set.
    `void` | `replace​(DocumentFilter.FilterBypass fb, int offset, int length, String text, AttributeSet attrs)` | Replace a string in the document, and then parse it if the parser has been set.

    - ### Methods inherited from class java.lang.Object

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

- - ### Field Detail

    - #### TAB_REPLACEMENT

          public static final String TAB_REPLACEMENT

      See Also:
        Constant Field Values

    - #### lexer

          protected StructuredSyntaxDocumentFilter.LexerNode lexer

      The root of the lexical parsing tree.

    - #### styledDocument

          protected DefaultStyledDocument styledDocument

    - #### mlTextRunSet

          protected SortedSet mlTextRunSet

      The position tree of multi-line comments.

  - ### Constructor Detail

    - #### StructuredSyntaxDocumentFilter

          public StructuredSyntaxDocumentFilter​(DefaultStyledDocument document)

      Creates a new instance of StructuredSyntaxDocumentFilter
      Parameters:
        `document` - the styled document to parse

  - ### Method Detail

    - #### createLexerNode

          public StructuredSyntaxDocumentFilter.LexerNode createLexerNode()

      Create a new LexerNode for adding to root.
      Returns:
        a new LexerNode

    - #### getRootNode

          public StructuredSyntaxDocumentFilter.LexerNode getRootNode()

      Get the root node for lexing the document. Children can be added such that matching patterns can be further parsed if required.
      Returns:
        the root lexing node.

    - #### insertString

          public void insertString​(DocumentFilter.FilterBypass fb,
                                   int offset,
                                   String text,
                                   AttributeSet attrs)
                            throws BadLocationException

      Insert a string into the document, and then parse it if the parser has been set.
      Overrides:
        `insertString` in class `DocumentFilter`
      Parameters:
        `fb` -
        `offset` -
        `text` -
        `attrs` -
      Throws:
        `BadLocationException`

    - #### parseDocument

          protected void parseDocument​(int offset,
                                       int length)
                                throws BadLocationException

      Parse the Document to update the character styles given an initial start position. Called by the filter after it has updated the text.
      Parameters:
        `offset` -
        `length` -
      Throws:
        `BadLocationException`

    - #### remove

          public void remove​(DocumentFilter.FilterBypass fb,
                             int offset,
                             int length)
                      throws BadLocationException

      Remove a string from the document, and then parse it if the parser has been set.
      Overrides:
        `remove` in class `DocumentFilter`
      Parameters:
        `fb` -
        `offset` -
        `length` -
      Throws:
        `BadLocationException`

    - #### replace

          public void replace​(DocumentFilter.FilterBypass fb,
                              int offset,
                              int length,
                              String text,
                              AttributeSet attrs)
                       throws BadLocationException

      Replace a string in the document, and then parse it if the parser has been set.
      Overrides:
        `replace` in class `DocumentFilter`
      Parameters:
        `fb` -
        `offset` -
        `length` -
        `text` -
        `attrs` -
      Throws:
        `BadLocationException`