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tinmop/modules/expand-abbrev-command-windo...

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Common Lisp

;; tinmop module to expand abbreviations on the command window
;; Copyright © 2021 cage
;; This program 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.
;; This program 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/>.
;; This module will expand an abbreviation as described in
;; *expand-abbrev-rewriting-rules* when typing on the command line the
;; command line is that thin window on the bottom of the terminal
;; where user can input data when requested from the program
;; (e.g. asking for a password). an entry in
;; *expand-abbrev-rewriting-rules* is composed by a list of two
;; elements the first is a regular expression the second the expansion,
;; for example
;; ("^\\^g" "gemini://")
;; means: if a string that starts ("^") with "^g" is expanded to
;; gemini:// if the input string starts with a backslash ("\") this
;; escape the second character so if you want to enter "^g" you need
;; to start typing "\^g".
(in-package :modules)
(defparameter *expand-abbrev-rewriting-rules* '(("^!ge" "gemini://")
("^!go" "gopher://")
("^!n" "np://"))
"Before displaying messages that module will rewrites the first
element of each item (a regular expression) of this list with the second
Example
(\"foo\" \"bar\")
^^^
first
^^^
second
will replace 'foo' with 'bar'.
So the whole list is like: '((\"foo\" \"bar\") (\"old\" \"new\") ...)")
(defun expand-abbrev-abbrev-re (abbrev)
(first abbrev))
(defun expand-abbrev-abbrev-replace (abbrev)
(second abbrev))
(defparameter *expand-abbrev-actual-rewriting-rules*
(mapcar (lambda (a) (list (create-scanner (expand-abbrev-abbrev-re a))
(expand-abbrev-abbrev-replace a)))
*expand-abbrev-rewriting-rules*))
(defparameter *expand-abbrev-stop-rewrite* nil)
(defun expand-abbrev-command-hook-fn (command-window)
(let ((expanded (command-window:command-line command-window)))
(when (null *expand-abbrev-stop-rewrite*)
(if (scan "^\\\\." expanded)
(progn
(setf *expand-abbrev-stop-rewrite* t)
(setf expanded (subseq expanded 1)))
(loop for expansion in *expand-abbrev-actual-rewriting-rules* do
(let ((start (scan (expand-abbrev-abbrev-re expansion) expanded)))
(when start
(setf expanded (regex-replace (expand-abbrev-abbrev-re expansion)
expanded
(expand-abbrev-abbrev-replace expansion)))
(point-tracker:move-point command-window
start
(length expanded))
(point-tracker:move-point-right command-window
(length expanded)
:offset
(length (expand-abbrev-abbrev-replace expansion)))))))
(setf (command-window:command-line command-window) expanded)))
command-window)
(defun expand-abbrev-command-fire-hook (x)
(declare (ignore x))
(setf *expand-abbrev-stop-rewrite* nil))
(defun expand-abbrev-command-delete-hook (x)
(expand-abbrev-command-fire-hook x))
(hooks:add-hook 'hooks:*after-char-to-command-window*
#'expand-abbrev-command-hook-fn)
(hooks:add-hook 'hooks:*before-fire-string-event-command-window*
#'expand-abbrev-command-fire-hook)
(hooks:add-hook 'hooks:*after-delete-char-from-command-window*
#'expand-abbrev-command-delete-hook)