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;;; pyim-codes.el --- codes lib for pyim. -*- lexical-binding: t; -*-
;; * Header
;; Copyright (C) 2021 Free Software Foundation, Inc.
;; Author: Feng Shu <tumashu@163.com>
;; Maintainer: Feng Shu <tumashu@163.com>
;; URL: https://github.com/tumashu/pyim
;; Keywords: convenience, Chinese, pinyin, input-method
;; This file is part of GNU Emacs.
;; GNU Emacs 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 Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
;; * 代码 :code:
(require 'cl-lib)
(require 'pyim-scheme)
(require 'pyim-imobjs)
(require 'pyim-dcache)
(cl-defgeneric pyim-codes-create (imobj scheme &optional first-n)
"按照 SCHEME 对应的输入法方案，从一个 IMOBJ 创建一个列表 codes.
这个列表包含一个或者多个 code 字符串，这些 code 字符串用于从词库
中搜索词条.")
(cl-defmethod pyim-codes-create (imobj (_scheme pyim-scheme-quanpin) &optional first-n)
"从IMOBJ 创建一个 code 列表：codes.
列表 codes 中包含一个或者多个 code 字符串，这些 code 字符串用于从
词库中搜索相关词条。
(pyim-codes-create (quote ((\"w\" \"o\" \"w\" \"o\")
(\"\" \"ai\" \"\" \"ai\")
(\"m\" \"ei\" \"m\" \"ei\")
(\"n\" \"v\" \"n\" \"v\")))
(pyim-scheme-get (quote quanpin)))
结果为:
(\"wo\" \"ai\" \"mei\" \"nv\")"
(mapcar
(lambda (w)
(let ((py (replace-regexp-in-string ;去掉分隔符，在词库中搜索候选词不需要分隔符
"'" "" (concat (nth 0 w) (nth 1 w)))))
(if (numberp first-n)
(substring py 0 (min first-n (length py)))
py)))
imobj))
(cl-defmethod pyim-codes-create (imobj (scheme pyim-scheme-xingma) &optional first-n)
"用于处理形码输入法的 `pyim-codes-create' 方法。"
(when scheme
(let ((code-prefix (pyim-scheme-code-prefix scheme)))
(mapcar
(lambda (x)
(concat (or code-prefix "")
(if (numberp first-n)
(substring x 0 (min first-n (length x)))
x)))
imobj))))
;; * Footer
(provide 'pyim-codes)
;;; pyim-imobjs.el ends here
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