Microsoft.VisualStudio.Text.Logic Prepares the for presentation in the editor. The of the text data model. The of the text data model. Raised when the of this text data model changes. Gets the that should be presented in the editor. The that should be presented in the editor. Gets the that corresponds to a document in the file system. the that corresponds to a document in the file system. Provides information for the event. Initializes a new instance of . The of the before the change. The of the after the change. Gets the of the after the change. The of the after the change. Gets the of the before the change. The of the before the change. Represents a that may have virtual spaces. Initializes a new instance of a at the specified position in the specified snapshot, with zero virtual spaces. The snapshot to use. The position of the snapshot point. Initializes a new instance of a at the specified offset of the specified line, placing the point in virtual space if necessary. The line on which to place the point. The column (zero-based) of the point. is null. is negative, or the start position plus the column is less than the start position. Initializes a new instance of a at the specified position, with zero virtual spaces. The position the point in the snapshot. Initializes a new instance of a at the specified position, with the specified number of virtual spaces. The position of the virtual snapshot point. The number of virtual spaces after . is negative, or the position plus the number of virtual spaces is less than the position. is not zero and the position does not correspond to the end of the line. Compares one to another. If the positions of the virtual snapshot points are different, returns the difference in positions, otherwise returns the difference in the number of virtual spaces. The second . Determines whether two objects are the same. true if the objects are the same, otherwise false. The second virtual snapshot point. Gets the hash code for the object. The hash code for the object. Determines whether the snapshot point has virtual spaces. true if the snapshot point has virtual spaces, otherwise false. Determines whether two objects are the same. true if the two objects are the same, otherwise false. The left-hand point. The right-hand point. Determines whether the position of the left point is greater than the position of the right point. true if left.Position is greater than right.Position, otherwise false. The left-hand point. The right-hand point. The snapshots of the two points do not match. Determines whether the position of the left point is greater than or equal to the position of the right point. true if left.Position is greater than or equal to right.Position, otherwise false. The left-hand point. The right-hand point. The snapshots of the two points do not match. Determines whether two objects are different. true if the two objects are different, otherwise false. The left-hand point. The right-hand point. Determines whether the position of the left point is less than the position of the right point. true if left.Position is less than right.Position, otherwise false. The left-hand point. The right-hand point. The snapshots of the points do not match. Determines whether the position of the left point is less than or equal to the position of the right point. true if left.Position is less than or equal to right.Position, otherwise false. The left-hand point. The right-hand point. If the snapshots of the points do not match. Gets the position of the snapshot point. The position of the snapshot point. Converts the object to a string. The string form of this object. Translates this point to the specified snapshot. The corresponding in . The target snapshot. is for an earlier snapshot. Translates this point to the specified text snapshot with the specified tracking mode. The corresponding in . The target snapshot. The tracking mode to use. is for an earlier snapshot. Gets the number of virtual spaces. The number of virtual spaces. Represents the range between two objects. Initializes a new instance of a in the specified snapshot span, with no virtual spaces. A snapshot span. Initializes a new instance of a from the specified start and end points. The start point. The end point, which must be from the same as the start point. The snapshot points belong to different objects. The end point comes before the start point. Determines whether or not the given virtual point is contained within this virtual span. true if the position is greater than or equal to Start and less than End, otherwise false. The virtual point. Determines whether the specified virtual span falls completely within this virtual span. true if the specified span falls completely within this span, otherwise false. The virtual span. Gets the ending virtual point. The end point. Determines whether two objects are the same. true if the objects are the same, otherwise false. The object to compare. Gets the hash code for the object. The hash code. The text contained by this virtual snapshot span. A non-null string. Returns the intersection with the given virtual span. The intersection of the spans, or null if the spans do not intersect. The virtual span to check. Determines whether the specified virtual span intersects this span. true if the spans intersect, otherwise false. The virtual span to check. Determines whether the start and end points are in the same place. true if the span is empty, otherwise false. Determines whether the start or end points are in virtual space. true if both the start or end points of the span are in virtual space, otherwise false. The length of this span, taking into account virtual space. The length of the span. Determines whether two objects are the same. true if the two objects are the same, otherwise false. The first object. The second object. Determines whether two objects are different. true if the two objects are different, otherwise false. The first object. The second object. Returns the overlap with the specified virtual span. The overlap of the spans, or null if the spans do not overlap. The virtual span. Determines whether the specified span overlaps this span. true if the spans overlap, otherwise false. The virtual span. The to which this snapshot span refers. The text snapshot. Gets the non-virtual snapshot span to which this span corresponds. The snapshot span. Gets the starting virtual point. The start point. Converts the object to a string. The string form of this object. Translates this span to the specified snapshot. The corresponding in . The target snapshot. is for an earlier snapshot. Translates this span to the specified snapshot with the given tracking mode. The corresponding in . The target snapshot. The tracking mode. is for an earlier snapshot. Provides information for the event. Initializes a new instance of . The span of the classification that changed. Gets the span of the classification that changed. The change span. Describes a region of text classified by an . Initializes a new instance of a . The span of text to which the classification applies. The classification type of the span. is null. Gets the classification type of the text. The classification type. Gets the snapshot span of the classified text. The snapshot span. Provides the name for a logical classification type and the name of a classification type from which it is derived. Initializes a new instance of . Gets or sets the name of this classification type. The name of the type. The value is null. The value is an empty string. Describes a data-only export for declaring classification types. Initializes a new instance of . The logical classification type of a span of text. Gets the classification types from which the current is derived. The base classification types Gets the name of the classification type. The name of the classification type. Determines whether the current derives from the classification type named . true if the current classification type derives from the one identified by , otherwise false. The name of the base classification type. The service that maintains the collection of all known classification types. Initializes a new instance of a and adds it to the registry. A new . The name of the classification type to create. The base types of the classification. is already in the registry. Creates an that persists only for the duration of this session. A new which inherits from all . The base types for this . is null. has zero items. Creates an that persists only for the duration of this session.. A new that inherits from all of . The base types for this . is null. has zero items. Gets the object identified by the specified type. The classification type, null if there is no classification type of that name. The name of the classification type. Assigns objects to the text in a . Ocurs when the classification of a span of text has changed. Gets all the objects that overlap the given range of text. A list of objects that intersect with the given range. The snapshot span. A service that returns an that aggregates and normalizes all contributions for a . Gets the cached for the given . The cached . The with which to retrieve/create the . is null. Creates a classifier for a given in the given environment. Gets a classifier for the given text buffer. A classifier for the text buffer, or null if the provider cannot provide one in its current state. The to classify. A base class that can be used for options that are specific to an . The type of the option. Initializes a new instance of DifferenceBufferOption. Determines whether this option is applicable to the given scope. true if the option is applicable, otherwise false. The scope to which to apply the option. A set of options for the difference buffer. The ID of the option that determines whether or not to ignore case when performing line-level differencing. The name of the option that determines whether or not to ignore case when performing line-level differencing. The ID of the option that determines what type of whitespace, if any, to ignore when performing line-level differencing. The name of the option that determines what type of whitespace, if any, to ignore when performing line-level differencing. The mapping modes that can be used when mapping points inside a difference between the left and right snapshots. Map any point in a difference to the end of the corresponding difference in the other snapshot. Map any point in a difference to the corresponding line/column of the corresponding difference in the other snapshot.If the difference in the other snapshot doesn't have a corresponding line, the point is mapped to the end of the difference. If the column is greater than the length of the corresponding line in the other snapshot, then the point is mapped to the end of the corresponding line. Map any point in a difference to the start of the corresponding difference in the other snapshot. A difference buffer constantly computes the differences between two objects, providing an , , that contains the differences between the two objects in an inline difference. Add a predicate to selectively ignore differences. A predicate to be called for every computed line difference. Add a custom , which can modify lines of text before they are compared. The transform to add. Gets or sets the source of the left buffer in the difference. The source of the left buffer in the difference. Gets or sets the source of the right buffer in the difference. The source of the right buffer in the difference. Gets or sets the snapshot of the that corresponds to the state at which is current. The snapshot of the that corresponds to the state at which is current. Gets or sets the currently-used snapshot difference that matches up with the current snapshot of the . The currently-used snapshot difference that matches up with the current snapshot of the . Gets or sets the options used in differencing the two buffers. These options are used in calls to the that performs the actual comparison. The options used in differencing the two buffers. Gets or sets the top-level buffer, which contains the differences combined. The top-level buffer, which contains the differences combined. Determines whether editing is disabled in this . true if editing is disabled in this , otherwise false. Gets or sets the left buffer of the difference. The left buffer of the difference. Gets or sets the general difference buffer options ). The general difference buffer options ). Remove a predicate previously added with . true if the predicate was found and removed, false otherwise. The predicate to remove. Remove a custom previously added with true if the transform was found and removed, false otherwise. The transform to remove. Gets or sets the right buffer in the difference. The right buffer in the difference. Occurs when the and have changed. Occurs immediately before the and are updated. A factory for creating instances. Creates an for the given left and right buffers. Returns . The left (before) buffer The right (after) buffer. Creates an for the given left and right buffers and with the given difference options. Returns . The left (before) buffer. The right (after) buffer. The options to use in computing differences between the buffers. If true, disable editing in the right and inline views. If true, create a read-only projection of (which will prevent that buffer from being modified through the difference buffers). If true and editing is disabled, create a read-only projection of (which will prevent that buffer from being modified through the difference buffers). Gets the for the given projection buffer if there is one. The difference buffer if one exists, otherwise null. The projection buffer. Tracking spans for an for the various line and word differences. Gets or sets the added line spans, against the . The added line spans, against the . Gets or sets the added line spans, against the . Added line spans, against the Gets or sets the removed line spans, against the . The removed line spans, against the . Gets or sets the removed word spans, against the . The removed word spans, against the . Add a predicate to selectively ignore differences.: A predicate to be called for every computed line difference. Determines how to treat whitespace. Ignore all whitespace when performing line-level differencing. Ignore whitespace at the start and end of lines when performing line-level differencing. This is equivalent to . Don't ignore whitespace. A set of differences between two objects. These are created by an , and are valid to a specific set of snapshots for the , the , and the and collections of and in place at that time. Gets or sets the that generated this difference. The that generated this difference. The difference options that were used in generating this difference. Gets or sets the word and line difference spans as objects against the left and right buffer. The word and line difference spans as objects against the left and right buffer. Finds the match or difference that contains the specified point. The index of the matching difference. The point for which to find the corresponding difference. This can be on the left, right or inline buffers. A match containing the (will be null if lies in a difference). A difference containing the (will be null if lies in a match). Gets or sets the objects that were used to generate this difference. The objects that were used to generate this difference. Gets or sets the snapshot generated for the inline buffer for this difference. The snapshot generated for the inline buffer for this difference. Gets or sets the snapshot of the left buffer used to compute this difference. The snapshot of the left buffer used to compute this difference. Gets or sets the differences for this snapshot. The differences for this snapshot. Maps a point from either the left or right buffer to the inline snapshot. A point in the . The point to map. Gets the extent of the difference in the specified snapshot. A snapshot span that gives the extent of the difference. The difference. The target. Map the specified SnapshotPoint to the specified ITextSnapshot. The snapshot point. The point to map. The target snapshot. The mode used when mapping between the left and right snapshots (or vice- versa) when lies inside a difference. Maps the specified in the inline buffer to its corresponding location in the left or right snapshots. The corresponding location on either the left or right buffers. The point to map. Gets or sets the snapshot of the right buffer used to compute this difference. The snapshot of the right buffer used to compute this difference. Gets or sets the line transforms that were used to generate this difference. The line transforms that were used to generate this difference. Translates the specified point to the corresponding snapshot associated with the snapshot difference. The point, translated from its snapshot to the corresponding LeftBufferSnapshot, RightBufferSnapshot, or InlineBufferSnapshot. The SnapshotPoint to translate. The line type, as used in methods on . A line that was added, meaning that it appears only in the right buffer. A line that appears in both the left and right buffer. A line that was removed, meaning that it appears only in the left buffer. Used in conjunction with the and events. Initializes a new instance of SnapshotDifferenceChangeEventArgs from the given before and after objects. The before the change (may be null). The after the change. Gets the after the change. If this is a event, this property is null, because it hasn't been computed yet. The after the change. If this is a event, this property is null, because it hasn't been computed yet. Gets the before the change, which is null for the first change event. The before the change, which is null for the first change event. A custom transform for text snapshot lines, to allow clients of to modify lines before performing any comparison.: The original snapshot line that this transform is being asked to operate on.</: The current text of the line, which may differ from " if an earlier transform has already processed the line.Returns the new line text to use for the line. A tag associated with a span of modified text. Initializes a new instance of with the specified change type. The type of change for the tag. Gets the type of change for the tag. The type of change for the tag. Specifies the types of changes that can be made to a document. The change occurred after the document was opened. The change occurred after the document was saved. No change types are set. The option definition that determines whether to convert tabs to spaces. Initializes a new instance of . Gets the default value (true). true. Gets the editor option key. . Common editor default options. Determines whether to convert tabs to spaces. The name of the default option that determines whether to convert tabs to spaces. Determines the size of an indentation. The name of the default option that determines size of an indent. This option is used to determine the numerical column offset of an indent level. The default option that determines the chunking size for long lines. Lines longer than may be considered in chunks of this size. The name of the default option that determines the chunking size for long lines. Lines longer than may be considered in chunks of this size. The default option that determines the threshold for special handling of long lines. Some operations do not operate on lines longer than this threshold. The name of the default option that determines the threshold for special handling of long lines. Some operations do not operate on lines longer than this threshold. Determines the newline character or characters. The default option that determines the newline character or characters. The newline character can be a string, as in the common case of "\r\n". This setting applies when is false, or when is true and the text buffer is empty. Determines whether to duplicate the new line character already present when inserting a new line. The name of the default option that determines the newline character or characters. The newline character can be a string, as in the common case of "\r\n". This setting applies when is false, or when is true and the text buffer is empty. Determines size of a tab. The name of the default option that determines size of a tab. This option is used to determine the numerical column offset of a tab character ('\t') and, if is enabled, the number of spaces to which a tab should be converted. Specifies optional deferred creation semantics. Instantiates a new instance of a . Gets the optional OptionName that controls creation. The optional OptionName that controls creation. Provides information for the event. Initializes a new instance of . The ID of the option. Gets the ID of the option that has changed. The option ID. The definition of an editor option. Initializes a new instance of . Gets the default value of the option. The default value. Determines whether two objects are the same. true if the two objects are the same, otherwise false. The object to be compared. Gets the hash code of this type. The hash code. Determines whether this option is applicable for the given scope (for example, a text buffer). true if the option is applicable to the scope, otherwise false. The . Determines whether the proposed value is valid. true if the value is valid, otherwise false. The proposed value for this option. Gets the name of the option from the options registry. The name of the option. Gets the actual type of the option. This is used to ensure that setting the option by using the editor options registry is type-safe. The type of the option. Represents the definition of an editor option. The type of the option. Initializes a new instance of . Gets the default value of this option. The default value of this option. Gets the default value of the option. The default value. Determines whether the proposed value is valid. true if the value is valid, otherwise false. The proposed value for this option. Determines whether the proposed value is valid. true if the value is valid, otherwise false. The proposed value for this option. Gets the key of this option. The key. Gets the name of the option. The name of the option. Gets the actual type of the option. The type of the option. Represents a type-safe key for editor options. The type of the option value. Initializes a new instance of . The name of the option key. Determines whether two objects are the same. true if the objects are the same, otherwise false. The object to be compared. Gets the hash code for this object. The hash code. Gets the name of this key. The name of this key. Determines whether two instances of this type are the same. true if the two keys are the same, otherwise false. The left-hand editor option key. The right-hand editor option key. Determines whether two instances of this type are different. true if the two keys are different, otherwise false. The left-hand editor option key. The right-hand editor option key. Converts this object to a string. The name of the option. Represents common editor options and an extensible mechanism for modifying values and adding new options. Clear the locally-defined value for the given option. true if the option was defined locally and cleared, otherwise false. The key of the option. The type of the value. Clear the locally-defined value for the given option. true if the option was defined locally and cleared. The ID of the option. Gets the value of the option identified by the specified key. The current value of the option. The key of the option. The type of the value. Gets the value of the option identified by the specified option ID. The current value of the option. The ID of the option. The type of the value. Gets the value of the option specified by the option ID. The current value of the option, as an object. The caller is responsible for casting the object to the correct type. The ID of the option. Gets the global options. The global options. Determines whether the specified editor option is defined. true if the option is defined, otherwise false. The key of the option. true to search only in this scope, false to try parent scopes as well. This setting has no effect if the current scope is global. The type of the key. Determines whether the specified option is defined. true if the option is defined, otherwise false. The ID of the option. true to search only in this scope, false to try parent scopes as well. This setting has no effect if the current scope is global. Occurs when any option changes. Gets the immediate parent of this set of options. The parent scope. Sets the value of the specified option in the current scope. The key of the option. The new value of the option. The type of the key. Sets the value of the specified option in the current scope. The ID of the option. The new value of the option. Gets the supported options. The supported options. Represents a service that gets for a specified scope or for the global scope. Creates a new instance of that is not bound to any particular scope. A new instance of , parented on the . Gets the for the . Buffers and views are property owners. Creates new options for the scope if none have previously been created. The for the given . The . Gets the global . The global options. The option definition that determines the size (in number of spaces) of an indent. Initializes a new instance of . Gets the default value (4). The default value (4). Determines whether a given indent size is valid. true if the size is valid, otherwise false. The size of the indent, in number of spaces. Gets the editor option key. The editor option key. The option definition that determines the determines the chunking size for long lines. Initializes a new instance of LongBufferLineChunk. Gets the default value (4K). The default value (4K). Gets the editor option key. The editor option key. The option definition that determines the threshold for special handling of long lines. Initializes a new instance of LongBufferLineThreshold. Gets the default value (32K). The default value (32K). Gets the editor option key. The editor option key. The option definition that specifies the newline character or characters. Initializes a new instance of . Gets the default value ("\r\n"). "\r\n". Gets the editor option key. . Determines whether to duplicate a newline character when inserting a line. Initializes a new instance of . Gets the default value (true). true. Gets the editor option key. . The option definition that determines the number of spaces of a tab. Initializes a new instance of . Gets the default value (4). The default value (4). Determines whether a given tab size is valid. true if is a valid size, otherwise false. The size of the tab, in number of spaces. Gets the editor option key. . Extension methods for common general options. Gets the size of an indentation for the specified . The size of the indentation. The . Gets the newline character or characters for the specified editor options. A string containing the newline character or characters. The . Determines whether to duplicate the newline character or character sequence if it is already present when inserting a newline. true if the newline character(s) should be duplicated, otherwise false. The . Gets the number of spaces for the tab in the specified . The number of spaces of the tab size. The . Determines whether the option to convert tabs to spaces is enabled in the specified . true if the option is enabled, otherwise false. The . Represents the set of data used in a search by the . Initializes a new instance of with the specified search pattern and text snapshot. The search string. The text snapshot in which to search. Initializes a new instance of with the specified search pattern, text snapshot, find options, and text structure navigator. The search pattern. The to search. The to use during the search. The to use during the search. or is null. is an empty string. Determines whether two objects are the same. true if the objects are the same, otherwise false. The object to compare. Gets or sets the options that are used for the search. The options that are used for the search. Gets the hash code for the object. The hash code. Determines whether two objects are the same. true if the objects are the same, otherwise false. The first object. The second object. Determines whether two objects are different. true if the two objects are different, otherwise false. The first object. The second object. Gets or sets the string to use in the search. The string to use in the search. The value is null. The value is an empty string. Gets or sets the on which to perform the search. The on which to perform the search. The value is null. Gets or sets the to use in determining word boundaries. The to use in determining word boundaries. Converts the object to a string. The string representation of the object. Represents the options that are used in a search. The search is case-sensitive. The search contains data that could match over line endings.. No options have been set. The string comparison used for the search is culture-insensitive (ordinal). For regular expressions, this option specifies The search starts at the end of the string. When supplied, uses the option to perform the searches. Only valid in conjunction with the UseRegularExpressions option. The search uses .NET regular expressions. The search matches whole words only. The search should wrap around if it hits boundaries of the search range.. Provides the merge policy for undo transactions. Determines whether two transactions can be merged true if the transactions can be merged, otherwise false. The newer transaction. The older transaction. Merges a new with an existing one. The existing transaction. The new transaction. Determines whether one is compatible with another. true if the policy is compatible, otherwise false. The to test. Registers the for a text buffer, listens for change events on a text buffer, and adds objects to the . Gets the for which this manages undo operations. The . Gets the undo history for the underlying . The undo history. Unregisters the for the underlying from the . Provides an for a given . Gets the cached for the specified . The cached for . The . is null. Removes the for the specified text buffer. The to check. is null. Navigates between search results on an and performs text replacements. Clears the current result. Gets the corresponding to the result of the last find operation. Returns the result of the last find operation. If no matches were found or if no search was performed, returns null. Finds the next occurrence of the text matching the . Returns true if a match is found; otherwise, returns false. Replaces the current result with the . Returns true if the replacement succeeded; otherwise returns false. Gets or sets the term to use to replace matches. Returns the term to use to replace matches. Gets or sets options to use for a search. Returns options to use for a search. Gets or sets the range of text to search. Returns the range of text to search. Gets or sets the term to search for. Returns the term to search for. Gets or sets the position at which the search is started. Returns the position at which the search is started. Creates objects. Creates a new instance of that searches the provided text buffer. Returns an that searches the provided buffer.. The buffer to search. Searches a with different search options. Searches for all the occurrences of the search string. A list of all the matches, or null if no matches were found. The data to use for this search. is null. The flag is set and the search string is an invalid regular expression. Searches for the next occurrence of the search string. The containing the match if a match was found, or null if no matches were found. The index from which to begin the search. Determines whether the search wraps to the beginning of the buffer when it reaches the end of the buffer. The data to use for this search. is null. is less than zero or greater than the length of the data. The flag is set and the search string is an invalid regular expression. Extends with methods for searching contents of a and helper methods for performing replace operations. Searches for the next occurrence of the given search pattern, using the given starting position and options. Returns the text span containing the match if a match was found; otherwise, returns null if no matches were found. [in] The position from which to begin the search. [in] The text pattern to search for. [in] Options to use for the search. Searches for the next occurrence of the given search pattern, using the given search range, starting position and options. This method is safe to be executed on any thread.Returns the text span containing the match if a match was found; otherwise, returns null if no matches were found. [in] The range of text to search in. [in] The position from which to begin the search. [in] The text pattern to search for. [in] Options to use for the search. Searches for all occurrences of the given search pattern, using the given search range, starting position and options. Returns an enumeration of containing the matches if any matches were found; otherwise, returns null if no matches were found. [in] The range of text to search in. [in] The position from which to begin the search. [in] The text pattern to search for. [in] Options to use for the search. Searches for all occurrences of the given search pattern, using the given starting range and options. Returns an enumeration of containing the matches if any matches were found; otherwise, returns null if no matches were found. [in] The range of text to search in. [in] The text pattern to search for. [in] Options to use for the search. Searches for all occurrences of the and calculates all the corresponding replacement results for every match according to the . An T containing all matches found and their corresponding replacement values. The range of text to search in. The pattern to search for. The replace pattern to use for the operation. The options to use while performing the search operation. Searches for the next occurrence of the search pattern and returns the result of replacing the search pattern with the replacement pattern. Returns the search result found. If no match is found, returns null. The position from which the search is started. The search will be performed on the to which this parameter belongs. [in] The text pattern to search for. [in] The text pattern to replace the found text with. [in] Options to use for the search. [out] The result of the replacement. Value is null if no matches are found. This value will be useful when performing regular expression searches. Searches for the next occurrence of the search pattern and returns the result of replacing the search pattern with the replacement pattern. Returns the search result found. If no match is found, returns null. [in] The range of text to search in. [in] The text pattern to search for. [in] The text pattern to replace the found text with. [in] Options to use for the search. [out] The result of the replacement. Value is null if no matches are found. This value will be useful when performing regular expression searches. Provides methods to navigate text, such as getting word extents. Gets the content type that this navigator supports. The content type that this navigator supports. Gets the extent of the word at the given position. A that represents the word. The text position. Gets the span of the enclosing syntactic element of the specified snapshot span. A that represents the enclosing syntactic element. If the specified snapshot span covers multiple syntactic elements, then the method returns the least common ancestor of the elements.If the snapshot span covers the root element (in other words, the whole document), then the method returns of the whole document. The from which to get the enclosing syntactic element. Gets the span of the first child syntactic element of the specified snapshot span. A that represents the first child syntactic element. The from which to get the span of the first child syntactic element. Gets the span of the next sibling syntactic element of the specified snapshot span. A that represents the next sibling syntactic element. The from which to get the span of the next sibling syntactic element. Gets the span of the previous sibling syntactic element of the specified snapshot span. A that represents the previous sibling syntactic element. The from which to get the span of the previous sibling syntactic element. Gets an for a given . Creates a new for the specified . The for , or null. The for which to get the . Selects and caches objects based on content type. Creates a new for the specified by using the specified to select the navigator. A valid . This value is never null. The that the will navigate. The content type to use. is null. Gets a for the specified , either by creating a new one or by using a cached value. A valid . This value will never be null. The that the will navigate. is null. Contains undo transactions. Determines whether a single redo is possible. true if a single redo is possible, otherwise false. Determines whether a single undo is possible. true if a single undo is possible, otherwise false. Creates a new transaction, nests it in the previously current transaction, and marks it current. The new transaction. The description of the transaction. Gets the current undo transaction in progress. The current undo operation. Gets the most recent (top) item of the . The most recent (top) item of the redo stac, or null if the stack is empty. Gets the most recent (top) item of the . The most recent (top) item of the , or null if the stack is empty. Performs the specified number of redo operation and places the transactions on the undo stack. The number of redo operations to perform. Gets the description of the most recent visible redo . The description of the most recent visible redo . The redo stack for this history. It does not include any currently open or undo transactions. The redo stack for this history. Gets the current state of the undo history. The current state of the undo history. Performs the specified number of undo operations and places the transactions on the redo stack. The number of undo operations to perform. Gets the description of the most recent visible undo . The description of the most recent visible undo . Notifies consumers when an undo or a redo has happened on this history. The undo stack for this history. It does not include any currently open or redo transactions. The undo stack for this history. Notifies consumers when an is completed and added to the . Maintains the relationship between text buffers and objects. Attaches an existing to a text buffer. The buffer must not already be mapped in this registry. This object should always be an . An object to associate with the text buffer. Gets a history associated with the text buffer, but does not create a new one. An . This object should always be an . Gets, and if necessary creates, a history associated with the context. An This object should always be an . Removes all mappings to a given in this registry, if any exist. The to remove from the registry. Gets a history associated with the text buffer, but does not create a new one. true if there is an undo history associated with the specified text buffer, otherwise false. This object should always be an . [out] An associated with the text buffer. Represents an atomic operation that knows how to do, undo, and redo itself. Determines whether this undo primitive can merge with the specified undo primitive. true if the undo primitives can be merged, otherwise false. The older primitive. Determines whether it is currently possible to call Do() successfully. true if it is currently possible to call Do() successfully, otherwise false. Determines whether it is currently possible to call Undo() successfully. true if it is currently possible to call Undo() successfully, otherwise false. Performs or redoes the operation. Performs a merge with the specified undo primitive. The replacement primitive. The older primitive to merge. Gets or sets the that contains the primitive. The that contains the primitive. Performs undo on the primitive. Represents a container for objects. Adds a new undo primitive to the end of the list when the transaction is open. The undo primitive. Marks an open transaction as canceled, but the modification is left in the file. Since the state of the buffer doesn't match the undo/redo stacks, any further attempt to undo/redo will either throw exceptions or corrupt the buffer. Determines whether it is currently possible to call successfully. true if it is currently possible to call Do() successfully, otherwise false. Determines whether it is currently possible to call Undo() successfully. true if it is currently possible to call successfully, otherwise false. Marks the transaction as finished and eligible for undo. Gets or sets the description. The description. Performs a do or redo. Gets the that contains this transaction. The . Gets the associated with this transaction. the . Gets the that contains this transaction. The parent . Gets the for the . The . Performs an undo or rollback. Gets the collection of objects in this container. The collection. Represents the extent of a word. Initializes a new instance of a from the specified . The from which to copy. Initializes a new instance of . The that includes the extent. false if the extent contains whitespace, unless whitespace should be treated like any other character. Determines whether two objects are the same. true if the two objects are the same, otherwise false. The to compare. Gets the hash code of the object. The hash code. Determines whether the extent is significant. true if the extent is significant, otherwise false. Determines whether two objects are the same. true if the objects are the same, otherwise false. The first object. The second object. Determines whether two objects are different. true if the two objects are different, otherwise false. The first object. The second object. Gets the . The . Provides information about the state of an . The is not in the process of performing an undo or redo. The is in the process of executing its Redo method. The is in the process of executing its Undo method. Provides information about the effect of the undo or redo operation for the event. Initializes a new instance of . The . The . Gets the state of the transaction. The state of the transaction. Gets the transaction that was processed in this undo or redo. The transaction that was processed in this undo or redo. Provides information for the event. Initializes a new instance of . The . The . is null. Gets the result of the completed transaction. The result of the completed transaction. Gets the transaction that was added to the . The transaction that was added to the . Describes the possible results of a transaction completion for an . The most recent transaction is added to the of the . The most recent transaction is merged with the transaction on the top of the of the associated . Holds the state of the transaction. The transaction is no longer being defined, but has been aborted and cleared. The transaction is no longer being defined, and is eligible for undo. The transaction has been removed from the undo history stack, for example because it was on the redo stack when a new operation cleared the redo stack. After a transaction is invalid, it should not be used for anything. The initial state of the transaction, after it has been created and before it is canceled or completed. A transient state set by the Do operation, between the undone state and the completed state. A transient state set by the Undo operation, between the completed state and the undone state. The Undo operation was called after completion. Provides information for the event. Initializes a new instance of with the specified list of objects. The list of objects in which the tags have changed. is null. Gets the list of objects where the tags have changed. The list of objects where the tags have changed. A tag that represents a classification type. An implementation of . Creates a new tag associated with the given type of classification. The type of classification. is null. Gets the classification type associated with this tag. The classification type associated with this tag. Creates an for an . Creates a tag aggregator for the specified text buffer. The tag aggregator. The over which the aggregator should aggregate tags, including all source buffers if the buffer is a projection buffer. The type of tag to aggregate. Creates a tag aggregator for the specified text buffer using the given options. The tag aggregator. The over which the aggregator should aggregate tags, including all source buffers if the buffer is a projection buffer. The options to use for the newly created aggregator. The type of tag to aggregate. A tag that represents a classification type. Gets the classification type associated with this tag. The classification type associated with this tag Associates an with a specified . The type, which must be a subtype of .This type parameter is covariant. That is, you can use either the type you specified or any type that is more derived. For more information about covariance and contravariance, see Covariance and Contravariance in Generics. Gets the mapping span for this tag. The mapping span for this tag. Gets the tag located in this span. The tag located in this span. The base interface of all tags. Aggregates all the tag providers in a buffer graph for the specified type of tag. The type of tag returned by the aggregator.This type parameter is covariant. That is, you can use either the type you specified or any type that is more derived. For more information about covariance and contravariance, see Covariance and Contravariance in Generics. Occurs on idle after one or more TagsChanged events. Gets the buffer graph over which this aggregator operates. The buffer graph over which this aggregator operates. Gets all the tags that overlap or are contained by the specified of the type of the aggregator. All the tags that overlap the region. The span to search. Gets all the tags that overlap or are contained by the specified of the type of the aggregator. All the tags that overlap the region. The spans to search. Gets all the tags that overlap or are contained by the specified of the same type as the aggregator. All the tags that overlap the region. The span to search. Occurs when tags are added to or removed from providers. A provider of tags over a buffer. The type of tags to generate.This type parameter is covariant. That is, you can use either the type you specified or any type that is more derived. For more information about covariance and contravariance, see Covariance and Contravariance in Generics. Gets all the tags that intersect the specified spans. A for each tag. The spans to visit. Occurs when tags are added to or removed from the provider. Creates an for a given buffer. Creates a tag provider for the specified buffer. The . The . The type of the tag. Associates an with a given . The type, which must be a subclass of .This type parameter is covariant. That is, you can use either the type you specified or any type that is more derived. For more information about covariance and contravariance, see Covariance and Contravariance in Generics. Gets the snapshot span for this tag. The snapshot span for this tag. Gets the tag located in this span. The tag located in this span. A tag that represents a URL. Gets the URL. The URL. The implementation of . The type, which must be a subtype of . Creates a mapping tag span. The mapping span with which to associate the tag. The tag associated with the span. or is null. Gets the mapping span for this tag. The mapping span for this tag. Gets the tag located in this span. The tag located in this span. Provides simple, thread-safe storage of and interaction with tags of the given type. The type, which must be a subtype of . Initializes a new instance of for the specified buffer. The subject buffer that will be tagged. Adds a tag over the given span. The that was added, which can be used to remove the tag later on. The that tracks the tag across text versions. The tag to associate with the given span. or is null. Gets the tagged spans that intersect the given . The set of objects that intersect the given span, in order. The to use. Gets all the tags that overlap the spans in the specified snapshot of the desired type. A for each tag. The spans to visit. Removes a tag span that was created by calling . true if removed successfully, otherwise false. The returned from a previous call to . Removes all tag spans that match the conditions specified by the predicate. The number of tag spans removed. The that defines the match. is null. Occurs when one or more tags have been added or removed. Gets an IDisposable object that represents an update batch. An object that represents an update batch. Represents a set of options for aggregating tags. Map only through projection buffers that have the "projection" content type. Normally, a tag aggregator maps up and down through all projection buffers (buffers that implement ). This flag causes the projection buffer not to map through buffers that are projection buffers but do not have a projection content type. This is used by the classifier aggregator, because classification depends on content type. Default behavior. The tag aggregator maps up and down through all projection buffers. Provides information about the event. Initializes a new instance of with the specified . The . is null. Gets the span over which tags have changed. The span over which tags have changed. The implementation of . The type, which must be a subclass of . Initializes a new instance of a with the specified snapshot span and tag. The with which to associate the tag. The tag associated with the span. is null. Gets the snapshot span for this tag. The snapshot span for this tag. Gets the tag located in this span. The tag located in this span. Declares the types of tags an produces. Initializes a new instance of a . The tag type, which must derive from . is null. does not derive from . Gets the type of the tag. The type of the tag. Associates an with a given . The type, which must be a subclass of . Initializes a new instance of a . The tracking span with which to associate the tag. The tag associated with the span. or is null. Gets the tracking span for this tag. The tracking span for this tag. Gets the tag located in this span. The tag located in this span. An implementation of . Create a new tag with the given URL. The URL. Thrown if is null. Gets the URL. The URL.