Annotation of coherent/d/usr/bin/elvis/doc/cutbufs.doc, revision 1.1

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        !             2:      Elvis 1.4                   CUT BUFFERS                    Page 6-1
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        !             4: 
        !             5: E6.  CUT BUFFERSF
        !             6: 
        !             7:         When  elvis  deletes  text, it stores that text in a cut buffer.
        !             8:      This happens in both  visual  mode  and  EX  mode.    There  is  no
        !             9:      practical limit to how much text a cut buffer can hold.  
        !            10: 
        !            11:         There  are  36  cut buffers: 26 named buffers ("a through "z), 9
        !            12:      anonymous buffers ("1 through "9), and 1 extra cut buffer (".).  
        !            13: 
        !            14:         In EX mode, the :move and :copy commands use  a  cut  buffer  to
        !            15:      temporarily hold the text to be moved/copied.  
        !            16: 
        !            17: 
        !            18:    E6.1  FillingF
        !            19: 
        !            20:         In  visual  mode,  text is copied into a cut buffer when you use
        !            21:      the d, y, c, C, or s commands.  
        !            22: 
        !            23:         By default, the text goes into the "1 buffer.    The  text  that
        !            24:      used to be in "1 gets shifted into "2, "2 gets shifted into "3, and 
        !            25:      so on.  The text that used to be in "9 is lost.  This way, the last 
        !            26:      9 things you deleted are still accessible.  
        !            27: 
        !            28:         You  can also put the text into a named buffer -- "a through "z.
        !            29:      To do this, you should type the buffer's name  (two  keystrokes:  a
        !            30:      double-quote  and a lowercase letter) before the d/y/c/C/s command.
        !            31:      When you do this, "1 through "9 are not affected by the cut.  
        !            32: 
        !            33:         You can append text to one of the named buffers.   To  do  this,
        !            34:      type  the  buffer's  name  in  uppercase  (a  double-quote  and  an
        !            35:      uppercase letter) before the d/y/c/C/s command.  
        !            36: 
        !            37:         The ". buffer is special.  It isn't affected  by  the  d/y/c/C/s
        !            38:      command.   Instead,  it  stores the text that you typed in the last
        !            39:      time you were in input mode.  It is used to implement the .  visual
        !            40:      command, and ^A in input mode.  
        !            41: 
        !            42:         In EX mode (also known as colon mode), the :delete, :change, and 
        !            43:      :yank commands  all  copy  text into a cut buffer.  Like the visual
        !            44:      commands, these EX commands normally use the "1 buffer, but you can 
        !            45:      use one of the named buffers by giving its name after the  command.
        !            46:      For example, 
        !            47: 
        !            48:             :20,30y a
        !            49: 
        !            50:         will copy lines 20 through 30 into cut buffer "a.  
        !            51: 
        !            52:         You  can't  directly  put  text  into  the  ". buffer, or the "2
        !            53:      through "9 buffers.  
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        !            67: 
        !            68:      Elvis 1.4                   CUT BUFFERS                    Page 6-2
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        !            71:    E6.2  Pasting from a Cut BufferF
        !            72: 
        !            73:         There are two styles of pasting: line-mode  and  character-mode.
        !            74:      If  a  cut  buffer  contains whole lines (from a command like "dd")
        !            75:      then line-mode pasting is used; if it contains partial lines  (from
        !            76:      a command  like  "dw") then character-mode pasting is used.  The EX
        !            77:      commands always cut whole lines.  
        !            78: 
        !            79:         Character-mode pasting causes the text to be inserted  into  the
        !            80:      line that the cursor is on.  
        !            81: 
        !            82:         Line-mode  pasting inserts the text on a new line above or below
        !            83:      the line that the cursor is on.  It  doesn't  affect  the  cursor's
        !            84:      line at all.  
        !            85: 
        !            86:         In  visual  mode,  the  p  and P commands insert text from a cut
        !            87:      buffer.   Uppercase  P  will  insert  it  before  the  cursor,  and
        !            88:      lowercase p  will  insert  it  after  the  cursor.  Normally, these
        !            89:      commands will paste from the "1 buffer, but  you  can  specify  any
        !            90:      other buffer to paste from.  Just type its name (a double-quote and 
        !            91:      another character) before you type the P or p.  
        !            92: 
        !            93:         In  EX  mode,  the (pu)t command pastes text after a given line.
        !            94:      To paste from a buffer other that "1,  enter  its  name  after  the
        !            95:      command.  
        !            96: 
        !            97: 
        !            98:    E6.3  MacrosF
        !            99: 
        !           100:         The  contents  of a named cut buffer can be executed as a series
        !           101:      of ex/vi commands.  
        !           102: 
        !           103:         To put the instructions into the  cut  buffer,  you  must  first
        !           104:      insert  them  into  the file, and then delete them into a named cut
        !           105:      buffer.  
        !           106: 
        !           107:         To execute a cut buffer's contents as EX  commands,  you  should
        !           108:      give the  EX  command "@" and the name of the buffer.  For example,
        !           109:      :@z will execute "z as a series of EX commands.  
        !           110: 
        !           111:         To execute a cut  buffer's  contents  as  visual  commands,  you
        !           112:      should  give  the visual command "@" and the letter of the buffer's
        !           113:      name.  The  visual  "@"  command  is  different  from  the  EX  "@"
        !           114:      command.  They interpret the cut buffer's contents differently.  
        !           115: 
        !           116:         The visual  @  command can be rather finicky.  Each character in
        !           117:      the buffer is interpretted  as  a  keystroke.    If  you  load  the
        !           118:      instructions  into  the  cut  buffer  via  a "zdd command, then the
        !           119:      newline character at the end of the line will be executed just like 
        !           120:      any other character, so the cursor would be moved down 1 line.   If
        !           121:      you don't want the cursor to move down 1 line at the end of each @z 
        !           122:      command,  then  you  should  load  the  cut  buffer  by saying 0"zD
        !           123:      instead.  
        !           124: 
        !           125:         Although cut buffers may hold any amount of text, elvis can only 
        !           126:      -1execute-0 small buffers.  For EX mode, the buffer is limited to about 
        !           127:      1k bytes.  For visual mode, the  buffer  is  limited  to  about  80
        !           128:      bytes.   If  a  buffer is too large to execute, an error message is
        !           129: 
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        !           133: 
        !           134:      Elvis 1.4                   CUT BUFFERS                    Page 6-3
        !           135: 
        !           136: 
        !           137:      displayed.  
        !           138: 
        !           139:         You can't nest @ commands.  You can't run @ commands  from  your
        !           140:      .exrc file, or any other :source file either.  Similarly, you can't 
        !           141:      run a  :source  command from within an @ command.  Hopefully, these
        !           142:      restrictions will be lifted in a later version.  
        !           143: 
        !           144: 
        !           145:    E6.4  The Effect of Switching FilesF
        !           146: 
        !           147:         When elvis first starts up, all cut buffers are empty.  When you 
        !           148:      switch to a different file (via the :n or :e commands perhaps)  the
        !           149:      9 anonymous cut buffers are emptied again, but the other 27 buffers 
        !           150:      retain their text.  
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