dtpad man page on UnixWare

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dtpad(1)		 USER COMMANDS			 dtpad(1)

NAME
     dtpad - edit text files

SYNOPSIS
     dtpad [-options] [file]

DESCRIPTION
     The dtpad utility is a basic editor that supports editing
     text files in a manner consistent with other common Graphi-
     cal User Interface text manipulation and file access mechan-
     isms.  Cursor positioning and text selection as well as
     access to various edit operations can be done via the stan-
     dard Motif text manipulation mechanisms using the mouse or
     user-definable key combinations.  Text can be cut, copied or
     pasted, or dragged to and from the Text Editor and/or other
     compliant application windows via the standard Motif Clip-
     board and ICCCM Primary and Secondary selection mechanisms.
     Also, standard dialogs are presented for accessing files and
     printing text.

     The Text Editor also provides the following features:

	o  Pull down menus for common edit and file operations.

	o  Undo of the previous edit operation.

	o  Search and replace.

	o  Spell checking.

	o  Simple formatting.

	o  Wrap-to-fit and overstrike modes.

	o  Optional status line - allowing cursor positioning by
	   line number.

	o  Automatic file save on many abnormal termination con-
	   ditions.

	o  Mechanism for automatic session save and restore.

     In the TED, the Text Editor can be a drag target for TED
     files, allowing a File Manager file icon to be dropped on a
     Text Editor window for insertion in the current text.  Also,
     in TED, the Text Editor operates in a transparent client-
     server mode in which all text editing for a display is han-
     dled by a single Text Editor server process.  In this mode,
     invoking the Text Editor causes the invoked Text Editor pro-
     cess to be relegated to the role of a requestor process that
     simply sends an edit request to the server process where the
     actual editing is handled.	 The server creates and maintains

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dtpad(1)		 USER COMMANDS			 dtpad(1)

     a separate edit window for each edit request and notifies
     the requestor when its edit window is closed.  The requestor
     normally just blocks until told by the server to exit; how-
     ever, if the server cannot honor the edit request (for exam-
     ple, it can't access the directory containing the
     requestor's file), the requestor handles the editing by
     itself.  If a Text Editor server for a display is not run-
     ning when an edit request is made, TED automatically starts
     one, normally on the TED session server (which need not be
     the same as the requestor's host).	 The normal client-server
     behavior can be disabled or altered via the Client and
     Server Control options described under the OPTIONS heading
     in this manual page.

OPTIONS
     The following options are available:

  Basic Command Line Options
	-saveOnClose
	      Automatically and silently saves the current text
	      when there are unsaved changes and the Text Editor
	      is closed.  The default action for this situation
	      posts a dialog asking whether or not to save the
	      current text.  This option inhibits the posting of
	      the Save dialog when the Text Editor is closed.
	      The Save dialog is always posted when a new file is
	      specified and there are unsaved changes.

	-missingFileWarning
	      Posts a Warning dialog whenever a file name is
	      specified and the file does not exist or cannot be
	      accessed.

	-noReadOnlyWarning
	      Disables the Warning dialog posted whenever a file
	      is specified for which the user does not have write
	      permission.  The default posts a Warning dialog
	      whenever this situation occurs.

	-noNameChange
	      Indicates that the default file name associated
	      with the current text is not to change when the
	      text is saved under a name different than what it
	      was read in under.  The current text can still be
	      saved under a different file name; however, the
	      default file name does not change.  By default, the
	      default file name is automatically changed to
	      correspond to the last name under which the current
	      text was saved.

	-viewOnly
	      Disallows editing of text in the edit window,

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dtpad(1)		 USER COMMANDS			 dtpad(1)

	      essentially turning the Text Editor into a text
	      viewer.  The default allows text editing in the
	      edit window even if the text was obtained from a
	      file for which the user does not have write permis-
	      sion.

	-statusLine
	      Displays a status line at the bottom of the edit
	      window.  The status line shows the line number of
	      the line where the text cursor is currently posi-
	      tioned.  The text cursor can be positioned to a
	      specific line by selecting the line number window
	      in the status line, typing the desired number and
	      pressing the Return key.	Normally, a status line
	      is not displayed.

	-wrapToFit
	      Initially turns on wrap-to-fit mode.  Wrap-to-fit
	      mode can be toggled on or off via the Option menu
	      Wrap-to-fit button and normally is initially turned
	      off.

	-workspaceList workspace_list
	      Displays the edit window for the current invocation
	      of the Text Editor in the specified workspace or
	      workspaces.  The default displays the edit window
	      in the workspace in which the Text Editor was
	      invoked.	The workspace_list argument specifies a
	      blank-separated list of TED workspaces.  If more
	      than one workspace is specified, the list must be
	      enclosed in quotes.

	-session session_file
	      Restores the Text Editor to all text editing win-
	      dows and settings that were in effect at a previous
	      TED shutdown.  All other command-line options are
	      ignored when this option is specified.  The
	      session_file argument specifies a Text Editor ses-
	      sion file, previously saved at session shutdown by
	      the Text Editor, to be used to restore the Text
	      Editor to its state at shutdown.

  Client and Server Control Options
	-standAlone
	      Forces the current invocation of the Text Editor to
	      do its own text processing in its own window,
	      independent of the Text Editor server.  This is
	      useful for displaying the Text Editor with an
	      environment different from that of other edit win-
	      dows controlled by the server as, for example, to
	      specify a different locale or different color
	      resources.  The Text Editor still supports file

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dtpad(1)		 USER COMMANDS			 dtpad(1)

	      drag and drop in this mode.

	-noBlocking
	      Terminates the Text Editor requestor process as
	      soon as the Text Editor server determines that it
	      can handle the requestor's edit request.	If this
	      option is not specified, the requestor blocks, ter-
	      minating only when it receives notification from
	      the server that its edit window has been closed.

	-server
	      Forces a Text Editor server to be started up (if
	      one is not already running) to process all subse-
	      quent edit requests for the display.  These edit
	      requests are normally generated by subsequent invo-
	      cations of the Text Editor without the -standAlone
	      command-line option and cause the server to create
	      a separate edit window to handle each request.
	      Users normally do not need to use this option since
	      the initial edit request for the display causes the
	      TED to start a Text Editor server automatically.

	-exitOnLastClose
	      Specifies that the Text Editor server process is to
	      terminate when the last edit window for the display
	      is closed.  It should only be used with the -server
	      option since it only applies to the server process.
	      If this option is not specified, the Text Editor
	      server remains active indefinitely, even when all
	      active edit windows have been closed.

OPERANDS
     The following operand is supported:

	file  The file to be edited or viewed.	If no file is
	      specified, the Text Editor opens a new (empty) edit
	      window and the file name must be specified when the
	      contents are saved.

RESOURCES
     The dtpad utility supports the specific Text Editor
     resources described here plus the standard resources related
     to the Text Editor widget hierarchy.  The main widgets that
     make up the Text Editor hierarchy are shown under this head-
     ing to aid in specifying resources.  The widget instance
     name is shown first, followed by the widget class name in
     parentheses.  Indentation indicates hierarchical structure.

	  dtpad (Dtpad)
	      main (MainWindow)
		  bar (MenuBar)
		      fileMenu (PulldownMenu)

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dtpad(1)		 USER COMMANDS			 dtpad(1)

		      editMenu (PulldownMenu)
		      formatMenu (PulldownMenu)
		      optionsMenu (PulldownMenu)
		      helpMenu (PulldownMenu)
		  editor (DtEditor)

     The client-server architecture of dtpad restricts the scope
     of resources that can be specified for individual edit win-
     dows that the Text Editor server handles.	For efficiency,
     only the resources specific to the Text Editor are passed on
     the Text Editor server.  None of the standard widget
     resources, except for geometry, are passed on from the
     requestor Text Editor to the Text Editor server.  These
     resources are loaded according to the environment on the
     server's host at the time the server is started up.  If more
     control is required, the -standAlone command-line option is
     used to create a separate, stand alone dtpad process where
     any and all of the standard resources, such as fontList or
     colors, can be loaded according to the environment on the
     requestor's host.

			   Basic Resources
     ____________________________________________________________
     Name		 Class		      Type     Default
     ____________________________________________________________
     saveOnClose	 SaveOnClose	      Boolean  False
     missingFileWarning	 MissingFileWarning   Boolean  False
     readOnlyWarning	 ReadOnlyWarning      Boolean  True
     nameChange		 NameChange	      Boolean  True
     viewOnly		 ViewOnly	      Boolean  False
     statusLine		 StatusLine	      Boolean  False
     wrapToFit		 WrapToFit	      Boolean  False
     workspaceList	 WorkspaceList	      String   NULL
     session		 Session	      String   NULL
     ____________________________________________________________

  Basic Resources
	saveOnClose
	      Indicates whether the Text Editor is to save
	      automatically the current text when there are
	      unsaved changes and the Text Editor is closed.
	      Setting this resource to True automatically saves
	      unsaved changes when the Text Editor is closed.
	      This is equivalent to specifying the -saveOnClose
	      command-line option.

	missingFileWarning
	      Indicates whether a warning dialog is to be posted
	      when a file is specified that does not exist or
	      cannot be accessed.  Setting this resource to True
	      displays the warning.  This is equivalent to speci-
	      fying the -missingFileWarning command-line option.

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dtpad(1)		 USER COMMANDS			 dtpad(1)

	readOnlyWarning
	      Indicates whether a warning dialog is to be posted
	      when a file for which the user does not have write
	      permission is read.  Setting this resource to False
	      suppresses the warning.  This is equivalent to
	      specifying the -noReadOnlyWarning command-line
	      option.

	nameChange
	      Indicates whether the current file name is to be
	      changed when the current text is saved under a new
	      name.  Setting this resource to False does not
	      allow the name to be reset.  This is equivalent to
	      specifying the -noNameChange command-line option.

	viewOnly
	      Indicates whether text only be viewed or whether it
	      can be edited in the edit window.	 Setting this
	      resource to True disables text editing.  This is
	      equivalent to specifying the -viewOnly command-line
	      option.

	statusLine
	      Indicates whether the Text Editor is to display the
	      status line at the bottom of the edit window.  Set-
	      ting this resource to True displays the status
	      line.  This is equivalent to specifying the
	      -statusLine command-line option.

	wrapToFit
	      Indicates whether the Text Editor is to enable
	      wrap-to-fit mode when the editor is started.  Set-
	      ting this resource to True enables wrap-to-fit
	      mode.  This is equivalent to specifying the -wrap-
	      ToFit command-line option.

	workspaceList
	      Indicates which workspace or workspaces the Text
	      Editor is to be displayed in.  This is equivalent
	      to specifying the -workspaceList command-line
	      option.

	session
	      Specifies the saved session file to use in restor-
	      ing a previously saved Text Editor session.  This
	      is equivalent to specifying the -session command-
	      line argument.

		   Client-Server Control Resources
     ____________________________________________________________
     Name		Class		   Type	      Default
     ____________________________________________________________

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dtpad(1)		 USER COMMANDS			 dtpad(1)

     standAlone		StandAlone	   Boolean    False
     blocking		Blocking	   Boolean    True
     server		Server		   Boolean    False
     exitOnLastClose	ExitOnLastClose	   Boolean    False
     ____________________________________________________________

  Client And Server Control Resources
	standAlone
	      Specifies whether the Text Editor is to run as a
	      separate, independent Text Editor process without
	      using the Text Editor server.  Setting this
	      resource to True invokes a separate, independent
	      process.	This is equivalent to specifying the
	      -standAlone command-line option.

	blocking
	      Specifies that the client Text Editor process is
	      not to terminate until receiving notification from
	      the Text Editor server that the user exited or
	      closed its edit window.  Setting this resource to
	      False causes the client process to exit immediately
	      when the server determines that it can handle its
	      edit request.  This is equivalent to specifying the
	      -noBlocking command-line option.

	server
	      Specifies that the Text Editor is to be started in
	      server mode to handle all processing for all subse-
	      quent edit requests for the display.  Setting this
	      resource to True is equivalent to specifying the
	      -server command-line option.

	exitOnLastClose
	      Specifies that the Text Editor server is to ter-
	      minate when the last edit window for the display is
	      closed.  Setting this resource to True is
	      equivalent to specifying the -exitOnLastClose
	      command-line option.

STDIN
     Not used.

INPUT FILES
     None.

ENVIRONMENT VARIABLES
     The following environment variables affect the execution of
     dtpad:

	DISPLAY	       Specify the default X Windows display to
		       connect to.

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dtpad(1)		 USER COMMANDS			 dtpad(1)

	LANG	       Provide a default value for the interna-
		       tionalization variables that are unset or
		       null.  If LANG is unset or null, the
		       corresponding value from the
		       implementation-specific default locale
		       will be used.  If any of the internation-
		       alization variables contains an invalid
		       setting, the utility behaves as if none of
		       the variables had been defined.

	LC_ALL	       If set to a non-empty string value, over-
		       ride the values of all the other interna-
		       tionalization variables.

	LC_MESSAGES    Determine the locale that is used to
		       affect the format and contents of diagnos-
		       tic messages written to standard error and
		       informative messages written to standard
		       output.

	NLSPATH	       Determine the location of message catalo-
		       gues for the processing of LC_MESSAGES.

ASYNCHRONOUS EVENTS
  ToolTalk Messages
     The following ToolTalk Desktop and Media requests are sup-
     ported by the Text Editor server:

	C_STRING   Text in an arbitrary codeset

	_DT_DATA   Data that does not match any other data type

     In addition, the Text Editor supports the messages below for
     any media type that does not have a specific editor
     registered.

     The following messages are supported from the Media Exchange
     message set:

	Instantiate
		   Opens a new edit window for composing arbi-
		   trary file(s).

	Edit	   Opens a new edit window for editing an exist-
		   ing file or buffer or for composing a specific
		   new file or buffer. If a non-editable file is
		   loaded and the user tries to edit the file,
		   dtpad will beep.

	Display	   Opens a new edit window for displaying an
		   existing file or buffer.

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dtpad(1)		 USER COMMANDS			 dtpad(1)

     The following messages are supported from the Desktop mes-
     sage set:

	Quit	   Terminates the text editing services or closes
		   a specific Text Editor edit window as speci-
		   fied by the operation2Quit argument.	 The
		   operation2Quit argument must be the message ID
		   of the Media Exchange request that created the
		   edit window.

		   The default actions for notifying the user,
		   saving or returning text and closing edit win-
		   dows are:

		      o	 If operation2Quit is specified, the
			 specified edit window is closed; other-
			 wise, all edit window(s) are closed and
			 the text editing services are terminated

		      o	 If there are unsaved changes, the user
			 is notified and allowed to save the text
			 and/or abort the Quit; otherwise, the
			 user is not notified and the text is not
			 saved (or returned if a buffer is being
			 edited)

		   Both the silent and force arguments are sup-
		   ported.  However, the semantics of silent
		   differ from the Desktop message set in that
		   the text editing services provides user notif-
		   ication only when there are unsaved changes,
		   rather than user notification when an edit
		   window is terminated.  The following table
		   describes variances in the default action for
		   various combination of silent and force.

		  silent   force   action
		  _______________________________________________
		  False	   False   default
		  True	   False   If there are unsaved changes,
				   the user is not notified, the
				   text is not saved and the edit
				   window is not terminated.
		  False	   True	   If there are unsaved changes,
				   the user is still notified and
				   allowed to save the text, but
				   cannot abort the Quit.

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dtpad(1)		 USER COMMANDS			 dtpad(1)

		  True	   True	   If there are unsaved changes,
				   the user is not notified, the
				   text is not saved and the edit
				   window is closed.
		  _______________________________________________

		   Whenever the Quit request is not carried out
		   (i.e., in the default case when the user
		   explicitly aborts the Quit or when silent is
		   True and force is not specified or is False),
		   the Quit request is failed with
		   TT_DESKTOP_ECANCELED.

	Save	   Saves a specific edit window opened via an
		   Edit request.  The ID argument must have the
		   messageID vtype and have the value of the mes-
		   sage ID of the Edit request that created the
		   edit window.

	Saved	   Sent when a file has been saved, as the result
		   of a Save request or a user action.

STDOUT
     Not used.

STDERR
     Not used.

OUTPUT FILES
     None.

EXTENDED DESCRIPTION
     None.

EXIT STATUS
     The following exit values are returned:

	 0  Successful completion.

	>0  An error occurred.

CONSEQUENCES OF ERRORS
     Default.

APPLICATION USAGE
     None.

EXAMPLES
     None.

NOTES

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dtpad(1)		 USER COMMANDS			 dtpad(1)

  Modes of Operation
     Each instance of the Text Editor operates in one of three
     modes:

	Requestor Mode
	      When the Text Editor is started without any over-
	      riding command-line options (that is, -standAlone
	      or -server), it always attempts to run in this
	      mode.  In this mode it simply sends an edit request
	      to a separate Text Editor server process and then
	      blocks (does nothing) until it receives a notice
	      from the server when its edit request is done, at
	      which time it exits.  If -noBlocking is specified,
	      it exits immediately after the server accepts its
	      edit request rather than waiting until the edit
	      request is done.

	StandAlone Mode
	      If the Text Editor server cannot process the edit
	      request from the Text Editor instance (for example,
	      the server process doesn't exist or can't be
	      started, or it can't access the requestor's file),
	      or if -standAlone is specified on the command line,
	      the Text Editor instance operates in standAlone
	      mode.  In this mode the Text Editor creates its own
	      edit window and handles all processing for this
	      window on its own.  In addition, it does not handle
	      any edit requests from outside sources and it exits
	      when its edit window is closed.

	Server Mode
	      When -server is specified on the command line, the
	      Text Editor instance operates as a server for all
	      Text Editor edit requests for the same display.
	      That is, it creates a separate edit window and does
	      the actual editing for all Text Editor instances
	      running to the same display that do not have -stan-
	      dAlone specified on their command line.  Only one
	      Text Editor server for a display can exist, and in
	      the TED, this instance is normally started automat-
	      ically if it's not running at the time an edit
	      request is made.

  Automatic File Save
     The Text Editor automatically saves the current text to a
     panic save file before exiting whenever it encounters a
     panic signal or an internal X error.  Panic signals are sig-
     nals such as SIGHUP, SIGINT, SIGQUIT, SIGILL, SIGABRT,
     SIGIOT, SIGEMT, SIGFPE, SIGBUS, SIGSEGV, SIGSYS, SIGPIPE and
     SIGTERM.  Internal X errors are both non fatal X Error
     events (as trapped by XSetErrorHandler(3X)), such as a
     failure in X server memory allocation, and fatal X errors

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dtpad(1)		 USER COMMANDS			 dtpad(1)

     (as trapped by XSetIOErrorHandler), such as losing the con-
     nection to the X server.  The Text Editor constructs the
     name of the panic save file by bracketing the file name as
     supplied by the user (or noName if none is supplied) with
     enough number symbols (#) to make the name unique.

  Wrap-to-fit Mode and Formatting
     Wrap-to-fit mode and text formatting are essentially
     independent operations.  Wrap-to-fit mode pertains to the
     dynamic display of lines, as delimited by <newline> charac-
     ters, which exceed the width of the Text Editor window and
     is based on the left and right window boundaries.	When
     wrap-to-fit mode is off (the default), each line of text is
     displayed on a single line on the display and text entered
     at the right window boundary causes the window to scroll
     automatically to the right to accommodate the new text until
     an actual <newline> character is entered (normally, by
     pressing the Return key).	When wrap-to-fit mode is on,
     lines longer than the window width are automatically wrapped
     at the right window margin to one or more display lines, and
     text entered at the right window boundary is automatically
     broken on a word boundary to the first column of the next
     display line.  Wrap-to-fit mode is dynamic in that wrapped
     lines are automatically adjusted when text is inserted or
     deleted or when the window is resized.  Wrap-to-fit mode
     only affects the display of lines; it does not actually
     insert <newline> characters in the text.

     Text formatting is a static operation that inserts actual
     <newline> (and/or <space>) characters directly in the text
     to match it to the left and right margins (and justification
     mode) specified in the Format Settings dialog.  Format set-
     tings affect text only when explicitly applied and have no
     affect on wrap-to-fit mode or previously formatted text.
     Initially, and whenever the window is resized, the right
     format margin is automatically set to the window width to
     match the wrap-to-fit boundary.

FILES
	/usr/dt/app-defaults/$LANG/Dtpad
	      Text Editor Application Defaults.

	/usr/dt/lib/nls/msg/$LANG/dtpad.cat
	      Text Editor Message Catalog.

	/usr/dt/appconfig/help/$LANG/Textedit.sdl
	      Text Editor Help Volume.

	/usr/dt/appconfig/types/$LANG/dtpad.dt
	      Contains Text Editor action definitions used by the
	      Text Editor.

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dtpad(1)		 USER COMMANDS			 dtpad(1)

	/usr/dt/appconfig/tttypes/types.xdr
	      ToolTalk process-types file containing message
	      definitions used by the Text Editor.

	#<file name>#
	      Panic save file (see Automatic File Save).

SEE ALSO
     DtEditor(3).

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