( Conditional Init Constructs

Info Catalog ( Readline Init File Syntax ( Readline Init File ( Sample Init File
 1.3.2 Conditional Init Constructs
 Readline implements a facility similar in spirit to the conditional
 compilation features of the C preprocessor which allows key bindings
 and variable settings to be performed as the result of tests.  There
 are four parser directives used.
      The `$if' construct allows bindings to be made based on the
      editing mode, the terminal being used, or the application using
      Readline.  The text of the test extends to the end of the line; no
      characters are required to isolate it.
           The `mode=' form of the `$if' directive is used to test
           whether Readline is in `emacs' or `vi' mode.  This may be
           used in conjunction with the `set keymap' command, for
           instance, to set bindings in the `emacs-standard' and
           `emacs-ctlx' keymaps only if Readline is starting out in
           `emacs' mode.
           The `term=' form may be used to include terminal-specific key
           bindings, perhaps to bind the key sequences output by the
           terminal's function keys.  The word on the right side of the
           `=' is tested against both the full name of the terminal and
           the portion of the terminal name before the first `-'.  This
           allows `sun' to match both `sun' and `sun-cmd', for instance.
           The APPLICATION construct is used to include
           application-specific settings.  Each program using the
           Readline library sets the APPLICATION NAME, and you can test
           for a particular value.  This could be used to bind key
           sequences to functions useful for a specific program.  For
           instance, the following command adds a key sequence that
           quotes the current or previous word in Bash:
                $if Bash
                # Quote the current or previous word
                "\C-xq": "\eb\"\ef\""
      This command, as seen in the previous example, terminates an `$if'
      Commands in this branch of the `$if' directive are executed if the
      test fails.
      This directive takes a single filename as an argument and reads
      commands and bindings from that file.  For example, the following
      directive reads from `/etc/inputrc':
           $include /etc/inputrc
Info Catalog ( Readline Init File Syntax ( Readline Init File ( Sample Init File
automatically generated byinfo2html