EVE$HELP.HLB  —  Ranges And Boxes
  Ranges And Boxes

  There are three ways to highlight text for editing operations, such as
  case changes, copying, cutting, and filling:

     Select range       Use SELECT to highlight a range of text as you move
                        the cursor. The selection appears in reverse video.
                        To select the entire buffer, use SELECT ALL. On
                        DECWindows, you can use the mouse (M1) to select
                        text (see usage notes below). With the WPS keypad,
                        you can use the Continue Search/Select key (GOLD-/
                        or GOLD-?). To cancel a selection, repeat SELECT or
                        use RESET.

     Box selection      Use BOX SELECT to select a rectangular area, such as
                        a list or part of a table. The start and end of the
                        selection are the diagonally opposite corners of the
                        box. Highlighting is in bold video. If SET BOX
                        SELECT is in effect, SELECT is the same as BOX
                        SELECT without having to redefine keys.

     Found range        Use FIND to search for a string of text, or WILDCARD
                        FIND to search for a pattern using wildcards and
                        literal text. Found text is highlighted in bold
                        video, with the cursor at the start of the found
                        text. Most edits that work on a selection work on a
                        found range. If SET BOX SELECT is in effect, found
                        ranges are treated like boxes. To cancel the
                        highlighting, move the cursor off the found text or
                        use RESET.

  Usage notes:

  o  On DECwindows, you can select text with the mouse by clicking or
     dragging M1 as follows:

        1 Click ...... Cancels a selection, and repositions the cursor.
        2 Clicks ..... Selects all of the word the pointer is on.
        3 Clicks ..... Selects all of the line the pointer is on.
        4 Clicks ..... Selects all of the paragraph the pointer is on.
        5 Clicks ..... Selects all of the buffer (same as SELECT ALL).
        Drag ......... Selects text, starting where you press M1
                       and ending where you release M1.
        Shift/Drag ... Extends or shrinks a selection.

  o  To edit a range or box, use any of the following commands or keys. Some
     of these commands or keys also work without highlighted text (for
     example, CAPITALIZE WORD, CONVERT TABS, FILL, and SPELL), and some do
     not work on a found range (such as SPELL and pending delete).

        Case changes                       Copying
        ---------------                    --------
        CAPITALIZE WORD                    BOX COPY
        LOWERCASE WORD                     STORE TEXT or COPY
        UPPERCASE WORD                     WPS Copy (GOLD-MINUS)
        EDT ChngCase (GOLD-KP1)
        WPS Lower Case (GOLD-KP3)          DECwindows Quick Copy
        WPS Upper Case (KP3)               ---------------------
                                           Copy To (M2CLICK)
        Cutting                            Move To (ALT/M2CLICK)
        -------
        BOX CUT                            Formatting
        BOX CUT INSERT                     ------------
        BOX CUT OVERSTRIKE                 CONVERT TABS
        REMOVE or CUT                      FILL
        EDT Append (KP9)                   FILL RANGE
        WPS Cut (MINUS or REMOVE)
                                           Other edits
        Replacing                          ----------------------
        ---------------------              DELETE (pending delete)
        EDT Replace (GOLD-KP9)             FIND SELECTED
        EDT Subs  (GOLD-ENTER)             OPEN SELECTED
        WPS Replace (GOLD-' or GOLD-")     SPELL

  o  With a standard, linear range, BOX COPY or BOX CUT uses the start and
     end of the range as diagonally opposite corners. Thus, you can use
     SELECT, FIND, or WILDCARD FIND and then use BOX COPY or BOX CUT.

  o  With a box selection, STORE TEXT or COPY is the same as BOX COPY, and
     REMOVE or CUT is the same as BOX CUT, so you do not have to redefine
     keys to copy or cut a box.

  o  SET BOX SELECT makes most commands and keys for editing a range work
     like the corresponding BOX commands---for example, INSERT HERE or PASTE
     is then the same as BOX PASTE. Also, a found range is then treated as a
     box, using the start and end of the found range as diagonally opposite
     corners.

  o  A selection takes precedence over a found range. Thus, if you use FIND
     to move the cursor, extending or shrinking a selection, the found text
     may not be part of the selection. If the search is in forward direction
     (right and down), the selection is extended up to the start of the
     found text, but the found range is not part of the selection. If the
     search is in reverse direction (left and up), the found text is part of
     the selection.

  o  Cutting and pasting a box have different effects depending on whether
     you disabled box padding:

     Settings        Effects on BOX CUT and BOX PASTE
     ---------------------------------------------------------------------
     SET BOX PAD     Cutting a box pads the area of the cut with spaces to
     (default)       keep the column alignment of text to the right of the
                     box, and adds spaces (if necessary) to the start and
                     end of lines in the cut to keep the rectangular shape.
                     shape.  Pasting a box overwrites existing text. These
                     effects also apply to erasing a box selection with
                     pending delete and to RESTORE BOX SELECTION.

     SET BOX NOPAD   Box editing depends on the mode of the buffer.  In
                     insert mode, cutting a box makes text to the right
                     "collapse" to left, closing the gap; pasting a box
                     pushes existing text to the right.  In overstrike
                     mode, the effects are the same as with SET BOX PAD.
                     These effects also apply to erasing a box selection
                     with pending delete and to RESTORE BOX SELECTION.)

  o  To override these effects without changing your settings, use either
     BOX CUT INSERT and BOX PASTE INSERT, or BOX CUT OVERSTRIKE and BOX
     PASTE OVERSTRIKE.

  o  SET BOX commands are global attributes, which can be saved in a section
     file or command file for future editing sessions---see help on
     Attributes. On DECwindows, you can toggle the settings by choosing
     Global Attributes from the Customize menu.

  o  On DECwindows, if you select text, the pop-up menu (displayed by
     holding down M2) contains COPY, CUT, FILL RANGE, and other commands for
     editing a selection. See help on Menus.

  o  If you frequently cut and paste boxes as well as linear ranges, you may
     want to define keys for BOX SELECT and BOX PASTE. You can use keys
     defined as STORE TEXT and REMOVE to copy or cut a box wihout having to
     redefine the keys and without having to use SET BOX SELECT.

  +-----------------------------------------------------------------------+
  | Copying, cutting, or pasting a large box selection is slow because    |
  | EVE must separately process the selected text on each line.  Also     |
  | slow are operations that move large amounts of text when you are      |
  | using buffer-change journaling.  For example, including a large file  |
  | in your buffer will be slow due to the need to journal each change    |
  | made to the buffer.                                                   |
  +-----------------------------------------------------------------------+

  Related topics:

     Pending Delete                  Quick Copy
     BOX SELECT                      FIND
     SELECT                          SET BOX PAD
     SET BOX SELECT                  SET SELECTION GRAB FOCUS
     SET SELECTION GRAB SELECTION    WILDCARD FIND
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