gnu.jemacs.swing
Class BufferContent

java.lang.Object
  gnu.lists.AbstractSequence
      gnu.lists.GapVector
          gnu.lists.StableVector
              gnu.lists.CharBuffer
                  gnu.jemacs.swing.BufferContent

All Implemented Interfaces:

CharSeq, Consumable, Sequence, java.lang.CharSequence, java.lang.Iterable, java.util.Collection, java.util.List, javax.swing.text.AbstractDocument.Content

public class BufferContent
extends CharBuffer
implements javax.swing.text.AbstractDocument.Content

A Content class that supports Emacs-style Markers. The standard GapContent is close, but unfortunately it only supports inserting *before* marks, which is not the Emacs default. This provides a superset of the Position functionality (except for undo).

Field Summary

Fields inherited from class gnu.lists.StableVector

free, FREE_POSITION, positions

Fields inherited from class gnu.lists.GapVector

base, gapEnd, gapStart

Fields inherited from interface gnu.lists.Sequence

ATTRIBUTE_VALUE, BOOLEAN_VALUE, CDATA_VALUE, CHAR_VALUE, COMMENT_VALUE, DOCUMENT_VALUE, DOUBLE_VALUE, EOF_VALUE, eofValue, FLOAT_VALUE, GROUP_VALUE, INT_S16_VALUE, INT_S32_VALUE, INT_S64_VALUE, INT_S8_VALUE, INT_U16_VALUE, INT_U32_VALUE, INT_U64_VALUE, INT_U8_VALUE, OBJECT_VALUE, PRIM_VALUE, PROCESSING_INSTRUCTION_VALUE, TEXT_BYTE_VALUE

Constructor Summary

BufferContent()

BufferContent(int initialSize)

Method Summary

javax.swing.text.Position	createPosition(int offset)
void	dump()
protected int	getChars(int where, int len)
void	getChars(int where, int len, javax.swing.text.Segment txt)
java.lang.String	getString(int where, int len)
static int	indexOf(char[] buffer, int start, int limit, char ch)
javax.swing.undo.UndoableEdit	insertString(int where, java.lang.String str)
javax.swing.undo.UndoableEdit	insertString(int where, java.lang.String str, boolean beforeMarkers)
static int	lastIndexOf(char[] buffer, int start, int limit, char ch) Search for the last occurrence of a character in buffer[limit..start].
javax.swing.undo.UndoableEdit	remove(int where, int nitems)
long	scan(char target, int start, int end, int count, boolean allowQuit) Search in BUF for COUNT instances of the character TARGET between START and END.

Methods inherited from class gnu.lists.CharBuffer

charAt, consume, delete, fill, fill, getArray, getChars, insert, length, setCharAt, subSequence, toString, writeTo, writeTo, writeTo, writeTo

Methods inherited from class gnu.lists.StableVector

addPos, adjustPositions, allocPositionIndex, chainFreelist, consumePosRange, copyPos, createPos, endPos, fillPosRange, gapReserve, hasNext, isAfterPos, nextIndex, nextPos, releasePos, removePosRange, shiftGap, startPos, unchainFreelist

Methods inherited from class gnu.lists.GapVector

add, fill, gapReserve, get, getNextKind, set, size

Methods inherited from class gnu.lists.AbstractSequence

add, addAll, addAll, append, append, append, baseUriOfPos, clear, compare, compare, compare, consume, consumeNext, contains, containsAll, createRelativePos, elements, equals, equals, fill, firstAttributePos, firstChildPos, fromEndIndex, get, getAttribute, getAttributeLength, getContainingSequenceSize, getEffectiveIndex, getIndexDifference, getIterator, getIterator, getIteratorAtPos, getLowBound, getNextTypeName, getNextTypeObject, getPosNext, getPosPrevious, getSize, gotoAttributesStart, gotoChildrenStart, gotoParent, hashCode, hasPrevious, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, nextIndex, nextMatching, parentPos, previousPos, rank, remove, remove, removeAll, removePos, retainAll, set, setPosNext, setPosPrevious, stableCompare, subList, subSequence, subSequencePos, toArray, toArray, toString, unsupported

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.swing.text.AbstractDocument.Content

length

Methods inherited from interface gnu.lists.Sequence

elements, fill, get, isEmpty, size

Methods inherited from interface java.util.List

add, add, addAll, addAll, clear, contains, containsAll, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, retainAll, set, subList, toArray, toArray

Methods inherited from interface gnu.lists.Consumable

consume

Constructor Detail

BufferContent

public BufferContent()

BufferContent

public BufferContent(int initialSize)

Method Detail

getChars

protected int getChars(int where,
                       int len)
                throws javax.swing.text.BadLocationException

Throws:

javax.swing.text.BadLocationException

getChars

public void getChars(int where,
                     int len,
                     javax.swing.text.Segment txt)
              throws javax.swing.text.BadLocationException

Specified by:

getChars in interface javax.swing.text.AbstractDocument.Content

Throws:

javax.swing.text.BadLocationException

getString

public java.lang.String getString(int where,
                                  int len)
                           throws javax.swing.text.BadLocationException

Specified by:

getString in interface javax.swing.text.AbstractDocument.Content

Throws:

javax.swing.text.BadLocationException

remove

public javax.swing.undo.UndoableEdit remove(int where,
                                            int nitems)
                                     throws javax.swing.text.BadLocationException

Specified by:

remove in interface javax.swing.text.AbstractDocument.Content

Throws:

javax.swing.text.BadLocationException

insertString

public javax.swing.undo.UndoableEdit insertString(int where,
                                                  java.lang.String str,
                                                  boolean beforeMarkers)
                                           throws javax.swing.text.BadLocationException

Throws:

javax.swing.text.BadLocationException

insertString

public javax.swing.undo.UndoableEdit insertString(int where,
                                                  java.lang.String str)
                                           throws javax.swing.text.BadLocationException

Specified by:

insertString in interface javax.swing.text.AbstractDocument.Content

Throws:

javax.swing.text.BadLocationException

createPosition

public javax.swing.text.Position createPosition(int offset)
                                         throws javax.swing.text.BadLocationException

Specified by:

createPosition in interface javax.swing.text.AbstractDocument.Content

Throws:

javax.swing.text.BadLocationException

dump

public void dump()

indexOf

public static int indexOf(char[] buffer,
                          int start,
                          int limit,
                          char ch)

lastIndexOf

public static int lastIndexOf(char[] buffer,
                              int start,
                              int limit,
                              char ch)

Search for the last occurrence of a character in buffer[limit..start].

scan

public final long scan(char target,
                       int start,
                       int end,
                       int count,
                       boolean allowQuit)

Search in BUF for COUNT instances of the character TARGET between START and END. If COUNT is positive, search forwards; END must be >= START. If COUNT is negative, search backwards for the -COUNTth instance; END must be <= START. If COUNT is zero, do anything you please; run rogue, for all I care. If we find COUNT instances, SHORTAGE is zero, and return the position after the COUNTth match. Note that for reverse motion this is not the same as the usual convention for Emacs motion commands. If we don't find COUNT instances before reaching END, set SHORTAGE to the number of TARGETs left unfound, and return (shortage<<32|END).

Returns:

(SHORTAGE<<32|POS)