reuse last translate path

[QiangF]

Fix https://github.com/lorniu/go-translate/issues/35

[QiangF]

The issue is that the gts-matched-paths is not always correct, the user's choice should be respected and remembered in case the guessed path is wrong. Instead of starting from the wrong match every time.

[lorniu]

You can turn off auto judge by executing (setq gts-picker-lang-match-alist nil).

Please test and report the result.

[QiangF]

auto judge is nice. I would rather keep it. My fix just adds the fallback behavior.

[lorniu]

你看看我最新的修改 95804f3 能不能符合预期。

[QiangF]

好像不行，比如下面的俄文：

Товары

重现步骤

1. 配置 (setq gts-translate-list '(("en" . "zh") ("ru" . "en") ("ja" . "en") ("de" . "en") ("fr" . "en")))
2. put point on Товары and do gts-do-translate
3. 移到下一个ru->en：M-n
4. 退出重来 put point on Товары and do gts-do-translate

See? ru->en选项没有在最前面

想要的状态，步骤4，不需要再使用移到下一个ru->en：M-n

[QiangF]

你可以试试我的改动，是可以的。你的包用了很多高级功能，对初学者不太友好，难度这就是所谓的：lisp的诅咒 :-)

[lorniu]

我这里测试可以啊？试了好几次，ru->en 都会到最前面。奇怪。

[QiangF]

我这边还是不行 :

1. emacs -q
2. load go-translate
3. config :
(setq gts-google-rpc-base-url "https://translate.google.cn"
      gts-translate-list '(("en" . "zh")
                           ("ru" . "en")
                           ("ja" . "en")
                           ("de" . "en")
                           ("fr" . "en")))
(setq gts-default-translator
      (gts-translator
       :picker (gts-noprompt-picker)
       :engines (gts-google-engine)
       :render (gts-buffer-render)))
4. gts-do-translate on Товары

[QiangF]

找到问题了，在那个translate buffer, 按M-n，应该保存当前的path到last path

出现的时间顺序

1. gts-do-translate 此时默认 zh-en
2. 在popup buffer里M-n ，此时是 ru-en
3. q 用户退出，我希望把 ru-en 保存到 last path

实际根本没有保存，原代码很绕，没看明白：

    (gts-buffer-set-key ("M-n" "Next direction")
      (let* ((picker (let ((op (oref translator picker)))
                       (if (functionp op) (funcall op) op)))
             (next (gts-next-path picker text from to)))
        (gts-translate translator text (car next) (cdr next))))

[QiangF]

如果加上自动识别，默认最好是 picker (gts-noprompt-picker)，至少每次少敲个回车键，所以这个不合理，M-n后保存才合理 “是不是只有 gts-picker 选取之后再修改 gts-picker-last-path 才更合理”

 (setq gts-default-translator
       (gts-translator
        :picker (gts-noprompt-picker)
        :engines (gts-google-engine)
        :render (gts-buffer-render)))

[lorniu]

明白了。已更新，请测试。

[QiangF]

高手，厉害！