nedit.doc

nedit 是一款linux下的开发源码的功能强大的编辑器

    Buttons

      Button 1 (left)    Cursor position and primary selection

      Button 2 (middle)  Secondary selections, and dragging and
                         copying the primary selection

      Button 3 (right)   Quick-access programmable menu and pan
                         scrolling


    Modifier keys

      Shift   On primary selections, (left mouse button):
                 Extends selection to the mouse pointer
              On secondary and copy operations, (middle):
                 Toggles between move and copy

      Ctrl    Makes selection rectangular or insertion
              columnar

      Alt*    (on release) Exchange primary and secondary
              selections.


  LEFT MOUSE BUTTON

  The left mouse button is used to position the cursor and to make primary 
  selections. 

    Click         Moves the cursor

    Double Click  Selects a whole word

    Triple Click  Selects a whole line

    Quad Click    Selects the whole file

    Shift Click   Adjusts (extends or shrinks) the
                  selection, or if there is no existing
                  selection, begins a new selection
                  between the cursor and the mouse.

    Ctrl+Shift+   Adjusts (extends or shrinks) the
    Click         selection rectangularly.

    Drag          Selects text between where the mouse
                  was pressed and where it was released.

    Ctrl+Drag     Selects rectangle between where the
                  mouse was pressed and where it was
                  released.


  RIGHT MOUSE BUTTON

  The right mouse button posts a programmable menu for frequently used 
  commands. 

    Click/Drag    Pops up the background menu (programmed
                  from Preferences -> Default Settings ->
                  Customize Menus -> Window Background).

    Ctrl+Drag     Pan scrolling.  Scrolls the window
                  both vertically and horizontally, as if
                  you had grabbed it with your mouse.


  MIDDLE MOUSE BUTTON

  The middle mouse button is for making secondary selections, and copying and 
  dragging the primary selection. 

    Click         Copies the primary selection to the
                  clicked position.

    Shift+Click   Moves the primary selection to the
                  clicked position, deleting it from its
                  original position.

    Drag          1) Outside of the primary selection:
                      Begins a secondary selection.
                  2) Inside of the primary selection:
                      Moves the selection by dragging.

    Ctrl+Drag     1) Outside of the primary selection:
                      Begins a rectangular secondary
                      selection.
                  2) Inside of the primary selection:
                      Drags the selection in overlay
                      mode (see below).

  When the mouse button is released after creating a secondary selection: 

    No Modifiers  If there is a primary selection,
                  replaces it with the secondary
                  selection.  Otherwise, inserts the
                  secondary selection at the cursor
                  position.

    Shift         Move the secondary selection, deleting
                  it from its original position.  If
                  there is a primary selection, the move
                  will replace the primary selection
                  with the secondary selection.
                  Otherwise, moves the secondary
                  selection to to the cursor position.

    Alt*          Exchange the primary and secondary
                  selections.

  While moving the primary selection by dragging with the middle mouse button: 

    Shift         Leaves a copy of the original
                  selection in place rather than
                  removing it or blanking the area.

    Ctrl          Changes from insert mode to overlay
                  mode (see below).

    Escape        Cancels drag in progress.

  Overlay Mode: Normally, dragging moves text by removing it from the selected 
  position at the start of the drag, and inserting it at a new position 
  relative to to the mouse. When you drag a block of text over existing 
  characters, the existing characters are displaced to the end of the 
  selection. In overlay mode, characters which are occluded by blocks of text 
  being dragged are simply removed. When dragging non-rectangular selections, 
  overlay mode also converts the selection to rectangular form, allowing it to 
  be dragged outside of the bounds of the existing text. 

  Mouse buttons 4 and 5 are usually represented by a mouse wheel nowadays. 
  They are used to scroll up or down in the text window. 

  * The Alt key may be labeled Meta or Compose-Character on some keyboards. 
  Some window managers, including default configurations of mwm, bind 
  combinations of the Alt key and mouse buttons to window manager operations. 
  In NEdit, Alt is only used on button release, so regardless of the window 
  manager bindings for Alt-modified mouse buttons, you can still do the 
  corresponding NEdit operation by using the Alt key AFTER the initial mouse 
  press, so that Alt is held while you release the mouse button. If you find 
  this difficult or annoying, you can re-configure most window managers to 
  skip this binding, or you can re-configure NEdit to use a different key 
  combination. 

------------------
KEYBOARD SHORTCUTS
------------------

  Most of the keyboard shortcuts in NEdit are shown on the right hand sides of 
  the pull-down menus. However, there are more which are not as obvious. These 
  include; dialog button shortcuts; menu and dialog mnemonics; labeled 
  keyboard keys, such as the arrows, page-up, page-down, and home; and 
  optional Shift modifiers on accelerator keys, like [Shift]Ctrl+F. 


  MENU ACCELERATORS

  Pressing the key combinations shown on the right of the menu items is a 
  shortcut for selecting the menu item with the mouse. Some items have the 
  shift key enclosed in brackets, such as [Shift]Ctrl+F. This indicates that 
  the shift key is optional. In search commands, including the shift key 
  reverses the direction of the search. In Shift commands, it makes the 
  command shift the selected text by a whole tab stop rather than by single 
  characters. 


  MENU MNEMONICS

  Pressing the Alt key in combination with one of the underlined characters in 
  the menu bar pulls down that menu. Once the menu is pulled down, typing the 
  underlined characters in a menu item (without the Alt key) activates that 
  item. With a menu pulled down, you can also use the arrow keys to select 
  menu items, and the Space or Enter keys to activate them. 


  KEYBOARD SHORTCUTS WITHIN DIALOGS

  One button in a dialog is usually marked with a thick indented outline. 
  Pressing the Return or Enter key activates this button. 

  All dialogs have either a Cancel or Dismiss button. This button can be 
  activated by pressing the Escape (or Esc) key. 

  Pressing the tab key moves the keyboard focus to the next item in a dialog. 
  Within an associated group of buttons, the arrow keys move the focus among 
  the buttons. Shift+Tab moves backward through the items. 

  Most items in dialogs have an underline under one character in their name. 
  Pressing the Alt key along with this character, activates a button as if you 
  had pressed it with the mouse, or moves the keyboard focus to the associated 
  text field or list. 

  You can select items from a list by using the arrow keys to move the 
  selection and space to select. 

  In file selection dialogs, you can type the beginning characters of the file 
  name or directory in the list to select files 


  LABELED FUNCTION KEYS

  The labeled function keys on standard workstation and PC keyboards, like the 
  arrows, and page-up and page-down, are active in NEdit, though not shown in 
  the pull-down menus. 

  Holding down the control key while pressing a named key extends the scope of 
  the action that it performs. For example, Home normally moves the insert 
  cursor the beginning of a line. Ctrl+Home moves it to the beginning of the 
  file. Backspace deletes one character, Ctrl+Backspace deletes one word. 

  Holding down the shift key while pressing a named key begins or extends a 
  selection. Combining the shift and control keys combines their actions. For 
  example, to select a word without using the mouse, position the cursor at 
  the beginning of the word and press Ctrl+Shift+RightArrow. The Alt key 
  modifies selection commands to make the selection rectangular. 

  Under X and Motif, there are several levels of translation between keyboard 
  keys and the actions they perform in a program. The "Customizing NEdit", and 
  "X Resources" sections of the Help menu have more information on this 
  subject. Because of all of this configurability, and since keyboards and 
  standards for the meaning of some keys vary from machine to machine, the 
  mappings may be changed from the defaults listed below. 


  MODIFIER KEYS (IN GENERAL)

    Ctrl   Extends the scope of the action that the key
           would otherwise perform.  For example, Home
           normally moves the insert cursor to the beginning
           of a line. Ctrl+Home moves it to the beginning of
           the file.  Backspace deletes one character, Ctrl+
           Backspace deletes one word.

    Shift  Extends the selection to the cursor position. If
           there's no selection, begins one between the old
           and new cursor positions.

    Alt    When modifying a selection, makes the selection
           rectangular.

  (For the effects of modifier keys on mouse button presses, see the section 
  titled "Using the Mouse") 


  ALL KEYBOARDS

    Escape        Cancels operation in progress: menu
                  selection, drag, selection, etc.  Also
                  equivalent to cancel button in dialogs.

    Backspace     Delete the character before the cursor

    Ctrl+BS       Delete the word before the cursor

    Arrows --

      Left        Move the cursor to the left one character

      Ctrl+Left   Move the cursor backward one word
                  (Word delimiters are settable, see
                  "Customizing NEdit", and "X_Resources_")

      Right       Move the cursor to the right one character

      Ctrl+Right  Move the cursor forward one word

      Up          Move the cursor up one line

      Ctrl+Up     Move the cursor up one paragraph.
                  (Paragraphs are delimited by blank lines)

      Down        Move the cursor down one line.

      Ctrl+Down   Move the cursor down one paragraph.

    Ctrl+Return   Return with automatic indent, regardless
                  of the setting of Auto Indent.

    Shift+Return  Return without automatic indent,
                  regardless of the setting of Auto Indent.

    Ctrl+Tab      Insert an ASCII tab character, without