config.phundrak.com/org/config/nano.org

#+TITLE: Nano configuration
#+setupfile: headers
#+OPTIONS: auto-id:t
#+HTML_HEAD_EXTRA: <meta name="description" content="Phundrak's nano configuration" />
#+HTML_HEAD_EXTRA: <meta property="og:title" content="Phundrak's nano configuration" />
#+HTML_HEAD_EXTRA: <meta property="og:description" content="Description of the nano configuration of Phundrak" />
#+PROPERTY: header-args :tangle ~/.config/nano/nanorc

* Introduction
  :PROPERTIES:
  :CUSTOM_ID: Introduction-7e535842
  :END:
  I nowadays rarely use Nano as a text  editor, since I mainly rely on Emacs for
  all sorts  of tasks, including  quick file  editing. However, at  times, Emacs
  won’t work or won’t be available, and I therefore need a lightweight, fast and
  reliable text editor: Nano. And despite Nano being a simple piece of software,
  it does offer some customization I cannot refuse. Here is how I configured it:

* Configuration
  :PROPERTIES:
  :CUSTOM_ID: Configuration-b55668a7
  :END:
  When saving a file, create a backup file by adding a tilde (=~=) to the file's
  name. And make and keep not just one backup file, but make and keep a uniquely
  numbered one every time  a file is saved — when backups  are enabled with =set
  backup= or =--backup=  or =-B=. The uniquely numbered files  are stored in the
  directory =~/.cache/nano/backups/=.
  #+BEGIN_SRC conf
    set backup
    set backupdir /home/phundrak/.cache/nano/backups/
  #+END_SRC

  Save a file by default in  Unix format. This overrides nano's default behavior
  of saving a  file in the format that  it had. (This option has  no effect when
  you also use =set noconvert=.)
  #+BEGIN_SRC conf
    set unix
  #+END_SRC

** Keys behavior
   :PROPERTIES:
   :CUSTOM_ID: Configuration-Keys_behavior-c665fa36
   :END:
   Make the  Home key  smarter. When Home  is pressed anywhere  but at  the very
   beginning of  non-whitespace characters on  a line,  the cursor will  jump to
   that beginning  (either forwards or backwards).  If the cursor is  already at
   that position, it will jump to the true beginning of the line.
   #+BEGIN_SRC conf
     set smarthome
   #+END_SRC

** Search
   :PROPERTIES:
   :CUSTOM_ID: Configuration-Search-6e458076
   :END:
   Do case-unsensitive searches by default.
   #+BEGIN_SRC conf
     unset casesensitive
   #+END_SRC

   Do regular-expression searches by default.  Regular expressions in =nano= are
   of the extended type (ERE).
   #+BEGIN_SRC conf
     set regexp
   #+END_SRC

** Visual settings
   :PROPERTIES:
   :CUSTOM_ID: Configuration-Visual_settings-9952f2ae
   :END:
   Use bold instead of reverse video for  the title bar, status bar, key combos,
   function tags,  line numbers, and  selected text.  This can be  overridden by
   setting the options =titlecolor=, =statuscolor=, =keycolor=, =functioncolor=, =numbercolor=, and =selectedcolor=.
   #+BEGIN_SRC conf
     set boldtext
   #+END_SRC

   Enable soft line wrapping for easier viewing of very long lines.
   #+BEGIN_SRC conf
    set softwrap
   #+END_SRC

   When soft  line wrapping is enabled,  make it wrap lines  at blank characters
   (tabs and spaces) instead of always at the edge of the screen.
   #+BEGIN_SRC conf
     set atblanks
   #+END_SRC

   Display line numbers to the left of the text area.
   #+BEGIN_SRC conf
     set linenumbers
   #+END_SRC

   Constantly display the cursor position in  the status bar. This overrides the
   option =quickblank=.
   #+BEGIN_SRC conf
     set constantshow
   #+END_SRC

** Whitespace settings
   :PROPERTIES:
   :CUSTOM_ID: Configuration-Whitespace_settings-8cef9cd7
   :END:
  Convert typed tabs to spaces. Sue me.
  #+BEGIN_SRC conf
    set tabstospaces
  #+END_SRC

  Use a  tab size of a  certain amount of columns.  The value of number  must be
  greater than 0. The default value is 8.
  #+BEGIN_SRC conf
  set tabsize 2
  #+END_SRC

  Automatically indent  a newly created line  to the same number  of tabs and/or
  spaces as the previous  line (or as the next line if the  previous line is the
  beginning of a paragraph).
  #+BEGIN_SRC conf
    set autoindent
  #+END_SRC

  Remove  trailing whitespace  from wrapped  lines when  automatic hard-wrapping
  occurs or when text is justified.
  #+BEGIN_SRC conf
  set trimblanks
  #+END_SRC

** Included configuration file
   :PROPERTIES:
   :CUSTOM_ID: Configuration-Included_configuration_file-70b0f35b
   :END:
   Nano gives the  opportunity to include some files located  elsewhere. This is
   why I added [[https://github.com/scopatz/nanorc][this repo]] as a submodule of  my dotfiles so I can access a lot of
   them at the  same time. Since the submodule is  cloned in =~/.config/nanorc=,
   we can add only one line to include all of the =.nanorc= files.
   #+BEGIN_SRC conf
     include ~/.config/nano/nano-syntax/*.nanorc
   #+END_SRC