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;;; guix-help-vars.el --- Variables related to --help output
;; Copyright © 2015 Alex Kost <alezost@gmail.com>
;; This file is part of GNU Guix.
;; GNU Guix is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Guix is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; This file provides regular expressions to parse various "guix
;; ... --help" outputs and lists of non-receivable items (system types,
;; hash formats, etc.).
;;; Code:
;;; Regexps for parsing "guix ..." outputs
(defvar guix-help-parse-option-regexp
(rx bol " "
(zero-or-one (group "-" (not (any "- ")))
",")
(one-or-more " ")
(group "--" (one-or-more (or wordchar "-")))
(group (zero-or-one "[")
(zero-or-one "="))
(zero-or-more (not space))
(one-or-more space)
(group (one-or-more any)))
"Common regexp used to find command options.")
(defvar guix-help-parse-command-regexp
(rx bol " "
(group wordchar (one-or-more (or wordchar "-"))))
"Regexp used to find guix commands.
'Command' means any option not prefixed with '-'. For example,
guix subcommand, system action, importer, etc.")
(defvar guix-help-parse-long-option-regexp
(rx (or " " ", ")
(group "--" (one-or-more (or wordchar "-"))
(zero-or-one "=")))
"Regexp used to find long options.")
(defvar guix-help-parse-short-option-regexp
(rx bol (one-or-more blank)
"-" (group (not (any "- "))))
"Regexp used to find short options.")
(defvar guix-help-parse-package-regexp
(rx bol (group (one-or-more (not blank))))
"Regexp used to find names of the packages.")
(defvar guix-help-parse-list-regexp
(rx bol (zero-or-more blank) "- "
(group (one-or-more (or wordchar "-"))))
"Regexp used to find various lists (lint checkers, graph types).")
(defvar guix-help-parse-regexp-group 1
"Parenthesized expression of regexps used to find commands and
options.")
;;; Non-receivable lists of system types, hash formats, etc.
(defvar guix-help-system-types
'("x86_64-linux" "i686-linux" "armhf-linux" "mips64el-linux")
"List of supported systems.")
(defvar guix-help-source-types
'("package" "all" "transitive")
"List of supported sources types.")
(defvar guix-help-hash-formats
'("nix-base32" "base32" "base16" "hex" "hexadecimal")
"List of supported hash formats.")
(defvar guix-help-refresh-subsets
'("core" "non-core")
"List of supported 'refresh' subsets.")
(defvar guix-help-key-policies
'("interactive" "always" "never")
"List of supported key download policies.")
(defvar guix-help-verify-options
'("repair" "contents")
"List of supported 'verify' options")
(defvar guix-help-elpa-archives
'("gnu" "melpa" "melpa-stable")
"List of supported ELPA archives.")
(provide 'guix-help-vars)
;;; guix-help-vars.el ends here
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