Opens an existing file that the user chooses in the Open dialog box. The file may be either in the FS-format (usually a file with a .fs extension) or a file in the CSTS SGML format. In the later case, James Clark's SGML parser SP must be installed and the sgmls configuration option must point to its binary executable nsgmls, unless it can be found in PATH.

TrEd expects files in the ISO-8859-2 (ISO Latin 2) encoding (which by TrEd is transparently translated to Windows 1250 encoding and back on Microsoft Windows systems).

Closes current file. If the file is modified but not saved, user is prompted to save it.

Opens a Filelist dialog window which allows user to create, load, modify and save lists of files for browsing, editing or searching pruposes. See more detail in Section 6..

Saves the active file to the disk. A backup file is created by appending a tilde `~' to the filename (which is a UNIX convention for naming backups).

Prompts user for a new name of the file using a standard file dialog and then performs the Save command.

This submenu displays ten most recently opened files. User may quickly reopen any of them by clicking on the corresponding item.

Closes the active file (asking user to save it if modified) and opens the previous file in the current filelist (see Section 6.).

Closes the active file (asking user to save it if modified) and opens the next file in the current filelist (see Section 6.).

Opens a Print Dialog. TrEd can only print to PostScript or Encapsulated PostScript which works fine on Unix/Linux systems (using standard lpr command). Windows users may print by printing to file and then opening the file in a PostScript interpreter (e.g. GhostView).

Encapsulated PostScript files (EPS) may be created here and used for preparation of other printed materials e.g. PDF of LaTeX documents.

Opens a small configuration file editor (see Section 7. for the details about configuration options). To apply the new configuration, save the configuration file to disk and leave the editor press the Save and Apply button. To apply changes without saving them, press Apply. The Close button closes the editor without making any changes to the present configuration.

	Note
	Some configuration options even if applied take effect only after restarting TrEd.

Use this command to reload the configuration file from disk and apply the new options. This command is useful if you have changed the configuration file in some other editor or in an another running instance of TrEd. As above, note, that some configuration changes still take effect only after restarting TrEd.

Exits the editor and in case that active file is modified and not yet saved, prompts the user to save it.

Display previous tree in the current file.

Display next tree in the current file.

If this item is checked, square boxes are drawn around the group of node labels.

If this item is checked, square boxes are drawn around the group of edge attributes.

Toggle displaying the hidden subtrees of the tree. If this item is checked, nodes makred as hidden using a special attribute (see FS-format description for details) and all their subtrees are also displayed.

Toggle highlighting certain attributes with user-defined colors. See Section 7. for details on customizing colors and FS-format description to learn about how to specify which attributes are highlighted.

Toggle sorting attributes by name in all dialog windows displaying any form of a list of attributes or attribute values.

Closes focused view if more than one views are present.

Create and focus a new view by splitting the current view horizontally. Sizes of the new and old view may be adjusted by dragging the thin that separats them. User may switch between views by clicking into the view he or she wants to focus. All subsequent keyboard shorcuts as well as menu and button commands are applied to the focused view. The focused view is distinguished from other views by black border drawn around it (both color and width of this border may be customized, see HighlightWindowColor and HighlightWindowWidth configuration options described bellow).

Create and focus a new view by splitting the current view vertically. Sizes of the new and old view may be adjusted by dragging the thin that separats them. See also little more detailed description of Split view horizontally.

Display a window containing a list of all `sentences' based on all trees in the current file. A `sentence' is a chain consisting of values of the value-attributes (i.e. @V attributes in FS format) of all nodes in the tree.

Open a dialog box in which the user can select the attributes that should be displayed and modify the way the attributes are presented. See Section 5. for more detail.

Display a window containing a list of all user-defined macros in current context and the corresponding keyboard shortcuts. User may immediately run a macro by double-clicking a corresponding item in the list, or by pressing the Run and Close button. In the latter case, the window is closed. The Sort by name and Sort by keyboard shortcuts radio-buttons let user to switch between the two modes of ordering the list.

Creates a new node and connects it as a child of the active node. All the attribute values of this node are left empty.

Passes all the children of the active node to its parent and deletes the active node. Does nothing if the active node is the root of the tree.

Inserts new tree before the current tree. The new tree consists of one empty node (its root) only.

Inserts new tree after the current tree. The new tree consists of one empty node (its root) only.

Removes the current tree from the file and displays the following tree (or the preceding tree, in case the current tree was the last one in the file).

Displays the Edit Node Attributes dialog box with the list of all attributes defined for the file and the values assigned to them in the active node. There are two types of attributes and therefore two ways to edit them:

This command displays a dialog box in which user may specify a search criterion for a node search. The search is based on regular expressions, wild-card patterns or literal strings matching the desired nodes values. In the dialog, there is an entry for each defined attribute into which user may enter a regular expression, exhaustive regular expression (i.e. the pattern must match the whole value being searched), wild-card pattern (where ? matches any character and * matches any number of any characters) or a literal string (depending on the value of the Search method option-menu).

In the Search file-list option-menu, the user may choose a file-list to search through.

When user presses Find button, TrEd searches for the first matching node in the selected file-list (or current file in case the [Current file only] option was selected from the Search file-list menu). A node matches if and only if all its attributes match the given patterns. (If no pattern is given for a certain attributes, these attributes are always considered to match). If a matching node is found, this node is displayed and made active.

Searches for the first node matching the criteria of the previous use of the Find ... command.

Searches for the first preceding node matching the criterion given in a previous use of the Find ... command.

Copies all values of the active node to an internal clipboard. These values may be pasted to any other node using the Paste Values command.

Cuts the whole subtree of the active node and stores it in an iternal clipboard. It may be then pasted as a subtree of any of the remaining nodes with the Paste Subtree command.

Deletes active node. The node must be a leaf and must not be the root of the tree, otherwise this command is ignored.

Displays the first tree in the file.

Displays the last tree in the file.

Promts user to enter an ordinal number of a tree and displays it.

Creates new node as a right brother of the active node (does nothing if the active node is root).

Creates new node as a son of the active node.

Pastes the tree saved in an internal clipboard during the last call of the Cut Subtree command as a subtree of the active node.

Assignes the active nodes attribute values stored in an internal clipboard during the last call of the Copy Values command.

When invoked, displays a window with a small editor for Perl code. The Perl code entered by user is then evaluated for every node of the tree in the natural ordering starting from the current node. The evaluation stops on the first node for which the Perl code returns with true (i.e. a defined non-zero value). The node is then made active.

In the Perl code, the $this variable may be used to refer to the current node and $root variable may be used as a reference to the root of the tree. If $n refers to some node, then $n->{attr} is value of attr attribute for the node $n. The governor of a node $n is refered to as to Parent($n) or $n->parent, nearest left brother of $n in the tree structure is LBrother($n) or $n->lbrother; the right brother of $n is RBrother($n) or $n->rbrother. The first son of $n is referred to as to FirstSon($n) or $n->firstson. If no such node exists, all these functions return zero `0'. Moreover, all the nodes of the tree are elements of the @nodes array (list) with the same order as they are displayed on the screen from left to right.

	Note
	$n->lbrother and $n->rbrother are not necesserilly displayed on left of $n.

Searches for the next node for which the Perl-expression given during the last call of Perl-Search command results in non-zero defined value.

Makes the active node exchange all attribute values with its governing node.

Displays the About dialog where the information about version, current file name and format, number of trees, and more is given.