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zero-input-table.el
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zero-input-table.el
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;;; zero-input-table.el --- a demo table based input method based on zero.el -*- no-byte-compile: t; lexical-binding: t -*-
;; Licensed under the Apache License, Version 2.0 (the "License");
;; you may not use this file except in compliance with the License.
;; You may obtain a copy of the License at
;;
;; http://www.apache.org/licenses/LICENSE-2.0
;;
;; Unless required by applicable law or agreed to in writing, software
;; distributed under the License is distributed on an "AS IS" BASIS,
;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;; See the License for the specific language governing permissions and
;; limitations under the License.
;;; Commentary:
;; when you type the key in `zero-input-table-table', IM will insert the
;; corresponding value.
;;
;; To use this demo IM,
;; (add-to-list 'load-path "~/fromsource/zero")
;; (require 'zero-input-table)
;; (zero-input-set-default-im 'zero-input-table) ; set as default IM
;; or (zero-input-set-im 'zero-input-table) ; set as current buffer's IM
;;; Code:
;;==============
;; dependencies
;;==============
(require 'zero-input-framework)
;;===============================
;; basic data and emacs facility
;;===============================
(defvar zero-input-table-table nil
"The table used by zero-input-table input method, map string to string.")
(defvar zero-input-table-sequence-initials nil
"Used in `zero-input-table-can-start-sequence'.")
;;=====================
;; key logic functions
;;=====================
(defun zero-input-table-sort-key (lhs rhs)
"A predicate function to sort candidates. Return t if LHS should sort before RHS."
(string< (car lhs) (car rhs)))
(defun zero-input-table-build-candidates (preedit-str &optional _fetch-size)
"Build candidates by looking up PREEDIT-STR in `zero-input-table-table'."
(mapcar 'cdr (sort (cl-remove-if-not (lambda (pair) (string-prefix-p preedit-str (car pair))) zero-input-table-table) 'zero-input-table-sort-key)))
;; (defun zero-input-table-build-candidates-async (preedit-str)
;; "build candidate list, when done show it via `zero-input-table-show-candidates'"
;; (zero-input-table-debug "building candidate list\n")
;; (let ((candidates (zero-input-table-build-candidates preedit-str)))
;; ;; update cache to make SPC and digit key selection possible.
;; (setq zero-input-table-candidates candidates)
;; (zero-input-table-show-candidates candidates)))
(defun zero-input-table-can-start-sequence (ch)
"Return t if char CH can start a preedit sequence."
(member (make-string 1 ch) zero-input-table-sequence-initials))
;;===============================
;; register IM to zero framework
;;===============================
(zero-input-register-im
'zero-input-table
'((:build-candidates . zero-input-table-build-candidates)
(:can-start-sequence . zero-input-table-can-start-sequence)))
;;============
;; public API
;;============
(defun zero-input-table-set-table (alist)
"Set the conversion table.
the ALIST should be a list of (key . value) pairs. when user type
\(part of) key, the IM will show all matching value.
To use demo data, you can call:
\(zero-input-table-set-table
\\='((\"phone\" . \"18612345678\")
(\"mail\" . \"[email protected]\")
(\"map\" . \"https://ditu.amap.com/\")
(\"m\" . \"https://msdn.microsoft.com/en-us\")
(\"address\" . \"123 Happy Street\")))"
(setq zero-input-table-table alist)
(setq zero-input-table-sequence-initials
(delete-dups (mapcar (lambda (pair) (substring (car pair) 0 1))
zero-input-table-table))))
(provide 'zero-input-table)
;;; zero-input-table.el ends here