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home: Add inputrc service.
* gnu/home/services/shells.scm (home-inputrc-service-type, home-inputrc-configuration): New variables. (serialize-inputrc-key-bindings, serialize-inputrc-variables, serialize-inputrc-conditional-constructs, serialize-inputrc-extra-content): New procedures. * doc/guix.texi (Shells Home Services): Document it.
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doc/guix.texi
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doc/guix.texi
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@ -42991,6 +42991,135 @@ for example).
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@end deftp
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@subsubheading Inputrc Profile Service
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@cindex inputrc
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@cindex readline
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The @uref{https://tiswww.cwru.edu/php/chet/readline/rltop.html, GNU
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Readline package} includes Emacs and vi editing modes, with the ability
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to customize the configuration with settings in the @file{~/.inputrc}
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file. With the @code{gnu home services shells} module, you can setup
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your readline configuration in a predictable manner, as shown below.
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For more information about configuring an @file{~/.inputrc} file,
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@pxref{Readline Init File,,, readline, GNU Readline}.
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@defvar home-inputrc-service-type
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This is the service to setup various @file{.inputrc} configurations. The
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settings in @file{.inputrc} are read by all programs which are linked
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with GNU Readline.
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Here is an example of a service and its configuration that you could add
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to the @code{services} field of your @code{home-environment}:
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@lisp
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(service home-inputrc-service-type
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(home-inputrc-configuration
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(key-bindings
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`(("Control-l" . "clear-screen")))
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(variables
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`(("bell-style" . "visible")
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("colored-completion-prefix" . #t)
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("editing-mode" . "vi")
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("show-mode-in-prompt" . #t)))
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(conditional-constructs
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`(("$if mode=vi" .
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,(home-inputrc-configuration
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(variables
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`(("colored-stats" . #t)
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("enable-bracketed-paste" . #t)))))
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("$else" .
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,(home-inputrc-configuration
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(variables
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`(("show-all-if-ambiguous" . #t)))))
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("endif" . #t)
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("$include" . "/etc/inputrc")
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("$include" . ,(file-append
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(specification->package "readline")
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"/etc/inputrc"))))))
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@end lisp
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The example above starts with a combination of @code{key-bindings} and
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@code{variables}. The @code{conditional-constructs} show how it is
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possible to add conditionals and includes. In the example above
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@code{colored-stats} is only enabled if the editing mode is @code{vi}
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style, and it also reads any additional configuration located in
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@file{/etc/inputrc} or in @file{/gnu/store/@dots{}-readline/etc/inputrc}.
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The value associated with a @code{home-inputrc-service-type} instance
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must be a @code{home-inputrc-configuration} record, as described below.
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@end defvar
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@anchor{home-inputrc-configuration}
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@deftp {Data Type} home-inputrc-configuration
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Available @code{home-inputrc-configuration} fields are:
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@table @asis
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@item @code{key-bindings} (default: @code{'()}) (type: alist)
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Association list of readline key bindings to be added to the
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@file{~/.inputrc} file.
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@lisp
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'((\"Control-l\" . \"clear-screen\"))
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@end lisp
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turns into
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@example
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Control-l: clear-screen
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@end example
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@item @code{variables} (default: @code{'()}) (type: alist)
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Association list of readline variables to set.
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@lisp
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'((\"bell-style\" . \"visible\")
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(\"colored-completion-prefix\" . #t))
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@end lisp
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turns into
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@example
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set bell-style visible
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set colored-completion-prefix on
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@end example
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@item @code{conditional-constructs} (default: @code{'()}) (type: alist)
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Association list of conditionals to add to the initialization file. This
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includes @command{$if}, @command{else}, @command{endif} and @command{include}
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and they receive a value of another @command{home-inputrc-configuration}.
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@lisp
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(conditional-constructs
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`((\"$if mode=vi\" .
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,(home-inputrc-configuration
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(variables
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`((\"show-mode-in-prompt\" . #t)))))
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(\"$else\" .
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,(home-inputrc-configuration
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(key-bindings
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`((\"Control-l\" . \"clear-screen\")))))
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(\"$endif\" . #t)))
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@end lisp
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turns into
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@example
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$if mode=vi
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set show-mode-in-prompt on
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$else
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Control-l: clear-screen
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$endif
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@end example
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@item @code{extra-content} (default: @code{""}) (type: text-config)
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Extra content appended as-is to the configuration file. Run @command{man
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readline} for more information about all the configuration options.
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@end table
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@end deftp
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@node Mcron Home Service
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@subsection Scheduled User's Job Execution
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@ -1,6 +1,7 @@
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2021 Andrew Tropin <andrew@trop.in>
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;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
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;;; Copyright © 2023 Efraim Flashner <efraim@flashner.co.il>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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@ -44,7 +45,10 @@
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home-fish-service-type
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home-fish-configuration
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home-fish-extension))
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home-fish-extension
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home-inputrc-service-type
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home-inputrc-configuration))
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;;; Commentary:
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;;;
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@ -626,6 +630,134 @@ end\n\n")
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(description "\
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Install and configure Fish, the friendly interactive shell.")))
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;;;
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;;; Readline.
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;;;
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(define (serialize-inputrc-key-bindings field-name val)
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#~(string-append
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#$@(map
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(match-lambda
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((key . value)
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#~(string-append #$key ": " #$value "\n")))
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val)))
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(define (serialize-inputrc-variables field-name val)
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#~(string-append
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#$@(map
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(match-lambda
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((key . #f)
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#~(string-append "set " #$key " off\n"))
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((key . #t)
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#~(string-append "set " #$key " on\n"))
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((key . value)
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#~(string-append "set " #$key " " #$value "\n")))
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val)))
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(define (serialize-inputrc-conditional-constructs field-name val)
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#~(string-append
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#$@(map
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(match-lambda
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(("$endif" . _)
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"$endif\n")
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(("$include" . value)
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#~(string-append "$include " #$value "\n"))
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;; TODO: key can only be "$if" or "$else".
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((key . value)
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#~(string-append #$key "\n"
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#$(serialize-configuration
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value
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home-inputrc-configuration-fields))))
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val)))
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(define (serialize-inputrc-extra-content field-name value)
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#~(if (string=? #$value "") "" (string-append #$value "\n")))
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(define-configuration home-inputrc-configuration
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(key-bindings
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(alist '())
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"Association list of readline key bindings to be added to the
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@code{~/.inputrc} file. This is where code like this:
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@lisp
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'((\"Control-l\" . \"clear-screen\"))
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@end lisp
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turns into
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@example
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Control-l: clear-screen
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@end example"
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(serializer serialize-inputrc-key-bindings))
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(variables
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(alist '())
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"Association list of readline variables to set. This is where configuration
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options like this:
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@lisp
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'((\"bell-style\" . \"visible\")
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(\"colored-completion-prefix\" . #t))
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@end lisp
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turns into
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@example
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set bell-style visible
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set colored-completion-prefix on
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@end example"
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(serializer serialize-inputrc-variables))
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(conditional-constructs
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(alist '())
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"Association list of conditionals to add to the initialization file. This
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includes @command{$if}, @command{else}, @command{endif} and @command{include}
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and they receive a value of another @command{home-inputrc-configuration}.
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@lisp
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(conditional-constructs
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`((\"$if mode=vi\" .
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,(home-inputrc-configuration
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(variables
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`((\"show-mode-in-prompt\" . #t)))))
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(\"$else\" .
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,(home-inputrc-configuration
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(key-bindings
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`((\"Control-l\" . \"clear-screen\")))))
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(\"$endif\" . #t)))
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@end lisp
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turns into
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@example
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$if mode=vi
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set show-mode-in-prompt on
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$else
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Control-l: clear-screen
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$endif
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@end example"
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(serializer serialize-inputrc-conditional-constructs))
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(extra-content
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(string "")
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"Extra content appended as-is to the configuration file. Run @command{man
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readline} for more information about all the configuration options."
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(serializer serialize-inputrc-extra-content)))
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(define (home-inputrc-files config)
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(list
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`(".inputrc"
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,(mixed-text-file "inputrc"
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(serialize-configuration
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config
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home-inputrc-configuration-fields)))))
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(define home-inputrc-service-type
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(service-type (name 'inputrc)
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(extensions
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(list (service-extension home-files-service-type
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home-inputrc-files)))
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(default-value (home-inputrc-configuration))
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(description "Configure readline in @code{.inputrc}.")))
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(define (generate-home-shell-profile-documentation)
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(generate-documentation
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