TSyntMemoStrings Class

Represents text storage class with direct access to the text.

TSyntMemoStrings = class(TecStrings);

File

ecMemoStrings

Description

TSyntMemoStrings stores text as a single null-terminated string in the field FText. You may directly access to this field. Direct access enables text analysis without creating a copy of the text, especially for large texts.

TSyntMemoStrings implements the abstract properties and methods introduced by TStrings. TSyntMemoStrings support objects linked to the strings. But it's necessary to use SetObjectsStore method to create a container for these objects. You may also delete this container using SetObjectsStore.

TSyntMemoStrings also stores undo records. All clients of the TSyntMemoStrings share single undo list.

Notes

Do not use FText to update text. Use it only for reading.

Group

Classes

Topics

Topic	Description
TSyntMemoStrings Methods	The methods of the TSyntMemoStrings class are listed here.
TSyntMemoStrings Properties	The properties of the TSyntMemoStrings class are listed here.
TSyntMemoStrings Events	The events of the TSyntMemoStrings class are listed here.

Legend

	Method
	virtual
	protected
	Property
	read only
	Event

TSyntMemoStrings Events

TSyntMemoStrings Events	Description
OnChange	Occurs immediately after the text changes.
OnCheckTextCoding	Called when detecting text coding of the stream.
OnModifiedChanged	Occurs when Modified property changes its value.

TSyntMemoStrings Methods

TSyntMemoStrings Methods	Description
AddStrings	Adds a group of strings to the list.
AddUndo	Adds undo record to buffer. For internal use only.
Assign	Assigns TStrings. To prevent adding empty line last line break is deleted.
BeginUndoGroup	Starts group of undo records.
CaretToStr	Converts the position of the caret in TPoint format to index of the character in text.
Changed	Called after text has been changed.
CharType	Returns representation of the use of a single byte in FText.
Clear	Deletes all the strings from the list.
ClearRedo	Clears all undone changes in undo buffer so that no changes to the text can be redone.
ClearUndo	Clears the undo buffer so that no changes to the text can be backed out.
ContainUnicode	Detects whether text contains unicode characters.
Create	Creates and initializes a TSyntMemoStrings instance.
Delete	Removes the string specified by the Index parameter.
DeleteTxt	Deletes portion of the text.
Destroy	Destroys an instance of TSyntMemoStrings.
EndUndoGroup	Finishes group of undo records.
Find	Finds a substring in the text.
Get	Returns a string given according to its index.
GetCount	Returns the number of strings in the list.
GetObject	Returns object associated with a string.
GetTextStr	Returns the value of the Text property.
Insert	Introduces a method to insert a string at a specified position.
InsertTxt	Inserts string at the specified position.
IsLineEmpty	Returns True if line is empty or if it contains only space characters.
IsNullEnd	Returns False if there is line break at the end of the text.
LineIndex	Returns index of the first character of the specified line.
LineLength	Returns length of the specified line.
LineSpace	Returns length of the specified line with line break.
LoadFromStream	Loads text from a stream.
MatchAtPos	Checks whether FindText string matches a substring in text starting with StrtPos.
ModifiedChanged	Called when modified status is changed.
Put	Changes the value of the string with a specified index.
PutObject	Changes the object associated with the string at a specified index.
RealCount	Returns number of lines excluding zero-space last line. There are two possible cases: 1. Text is ended on line-break -> RealCount = Count-1. 2. Text is ended on any other character -> RealCount = Count.
ResetLineStates	Resets states of all lines.
SaveLineStates	Assignes states of all modified lines of the text ls Saved value.
SaveToStream	Writes the value of the FText field to a stream object.
SaveUndoState	SaveUndoState assigns Modified flag to false and saves undo buffer.
SetObjectsStore	Destroys all objects associated with strings of the Strings property if Enable is false. Creates these objects otherwise.
SetTextStr	Sets the FText field.
StrToCaret	Converts index of the character in text to the position of the caret in TPoint format.
SubString	Returns portion of text.
TextLength	Returns length of the FText string.

TSyntMemoStrings Properties

TSyntMemoStrings Properties	Description
Chars	Provides indexed access to the characters of the text.
CharSet	Specifies the character set of the text.
CodePage	Specifies code page of the text. Code page is used when loading and saving files, copy/paste text from clipboard, etc.
LineState	Returns state of the line with number Line.
Modified	Defines whether text is modified.
RedoCount	Specifies number of undo records that have been undone.
SkipSignature	Defines whether signature is skipped while loading and saving streams.
SupportObjects	Enables objects storage.
TextCoding	Specifies coding of the text.
TextFormat	Specifies type of the line break.
UndoLimit	Specifies the number of keystrokes that can be undone.
UndoList	Contains undo records.

Links

Classes, Legend, Members, Topics, TSyntMemoStrings Methods, TSyntMemoStrings Properties, TSyntMemoStrings Events, TSyntMemoStrings Events, TSyntMemoStrings Methods, TSyntMemoStrings Properties

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