Info Catalog emacs: Continuation Lines emacs: Basic emacs: Arguments

emacs: Position Info

 
 7.9 Cursor Position Information
 ===============================
 
 Here are commands to get information about the size and position of
 parts of the buffer, and to count words and lines.
 
 ‘M-x what-line’
      Display the line number of point.
 ‘M-x line-number-mode’
 ‘M-x column-number-mode’
      Toggle automatic display of the current line number or column
      number.  Optional Mode Line.
 
 ‘M-=’
      Display the number of lines, words, and characters that are present
      in the region (‘count-words-region’).  Mark, for
      information about the region.
 
 ‘M-x count-words’
      Display the number of lines, words, and characters that are present
      in the buffer.  If the region is active (Mark), display the
      numbers for the region instead.
 
 ‘C-x =’
      Display the character code of character after point, character
      position of point, and column of point (‘what-cursor-position’).
 ‘M-x hl-line-mode’
      Enable or disable highlighting of the current line.  Cursor
      Display.
 ‘M-x size-indication-mode’
      Toggle automatic display of the size of the buffer.  Optional
      Mode Line.
 
    ‘M-x what-line’ displays the current line number in the echo area.
 This command is usually redundant, because the current line number is
 shown in the mode line (Mode Line).  However, if you narrow the
 buffer, the mode line shows the line number relative to the accessible
 portion (Narrowing).  By contrast, ‘what-line’ displays both the
 line number relative to the narrowed region and the line number relative
 to the whole buffer.
 
    ‘M-=’ (‘count-words-region’) displays a message reporting the number
 of lines, words, and characters in the region (Mark, for an
 explanation of the region).  With a prefix argument, ‘C-u M-=’, the
 command displays a count for the entire buffer.
 
    The command ‘M-x count-words’ does the same job, but with a different
 calling convention.  It displays a count for the region if the region is
 active, and for the buffer otherwise.
 
    The command ‘C-x =’ (‘what-cursor-position’) shows information about
 the current cursor position and the buffer contents at that position.
 It displays a line in the echo area that looks like this:
 
      Char: c (99, #o143, #x63) point=28062 of 36168 (78%) column=53
 
    After ‘Char:’, this shows the character in the buffer at point.  The
 text inside the parenthesis shows the corresponding decimal, octal and
 hex character codes; for more information about how ‘C-x =’ displays
 character information, see International Chars.  After ‘point=’
 is the position of point as a character count (the first character in
 the buffer is position 1, the second character is position 2, and so
 on).  The number after that is the total number of characters in the
 buffer, and the number in parenthesis expresses the position as a
 percentage of the total.  After ‘column=’ is the horizontal position of
 point, in columns counting from the left edge of the window.
 
    If the buffer has been narrowed, making some of the text at the
 beginning and the end temporarily inaccessible, ‘C-x =’ displays
 additional text describing the currently accessible range.  For example,
 it might display this:
 
      Char: C (67, #o103, #x43) point=252 of 889 (28%) <231-599> column=0
 
 where the two extra numbers give the smallest and largest character
 position that point is allowed to assume.  The characters between those
 two positions are the accessible ones.  Narrowing.
 

Info Catalog emacs: Continuation Lines emacs: Basic emacs: Arguments