emacs-w3m查看html幫助手冊
Table of Contents
- 1. 使用效果
- 2. 為什么要用emacs-w3m來查看html的幫助手冊？
- 3. 什么是w3m?
- 4. 配置
- 5. 額外資源
1 使用效果
使用快捷鍵C-c C-j之后，打開如圖所示的輸入界面，可以用 正則表達式 搜索想要的API，查找非常方便：
用emacs-w3m打開html文件的效果如圖：
2 為什么要用emacs-w3m來查看html的幫助手冊？
- 每次打開firefox，要等待較長時間，只為查看一個API的用法，感覺不爽。
- 直接用emacs將html文件當作文本文件打開，一堆的tags不方便看。
- 用瀏覽器搜索命令不夠方便，不如emacs的正則表達式來的帶勁。
- 就是喜歡在emacs中做所有的事，這一條就夠了。
3 什么是w3m?
http://blog.csdn.net/superwengo/article/details/8241601
4 配置
;;; init-emacs-w3m.el --- Summary ;;; Commentary: ;; comments;;; Code: (use-package w3m:commands (w3m):config;; (require 'w3m-load)(setq w3m-coding-system 'utf-8w3m-file-coding-system 'utf-8w3m-file-name-coding-system 'utf-8w3m-input-coding-system 'utf-8w3m-output-coding-system 'utf-8w3m-terminal-coding-system 'utf-8)(setq w3m-use-cookies t)(setq w3m-cookie-accept-bad-cookies t)(setq w3m-home-page(if (file-readable-p (expand-file-name "html/home.html" unimacs-tempfiles-dir))(concat "file://" (expand-file-name "html/home.html" unimacs-tempfiles-dir))"http://www.baidu.com"));; set proxy(defun toggle-env-http-proxy ()"set/unset the environment variable http_proxy which w3m uses"(interactive)(let ((proxy "http://proxynj.huawei.com:8080"))(if (string= (getenv "http_proxy") proxy);; clear the the proxy(progn(setenv "http_proxy" "")(message "env http_proxy is empty now"));; set the proxy(progn(setenv "http_proxy" proxy)(message "env http_proxy is %s now" proxy)))))(setq w3m-use-toolbar tw3m-key-binding 'info);; show images in the browser;; (setq w3m-default-display-inline-images t);; (setq w3m-default-toggle-inline-images t)(setq w3m-view-this-url-new-session-in-background t);;顯示圖標(setq w3m-show-graphic-icons-in-header-line t)(setq w3m-show-graphic-icons-in-mode-line t)(setq w3m-search-default-engine "b")(eval-after-load "w3m-search"'(progn;; C-u S g RET <search term> RET(add-to-list 'w3m-search-engine-alist '("b" "http://www.baidu.com/search?hl=en&q=%s" utf-8))(add-to-list 'w3m-search-engine-alist '("g" "http://www.google.com.au/search?hl=en&q=%s" utf-8))(add-to-list 'w3m-search-engine-alist '("wz" "http://zh.wikipedia.org/wiki/Special:Search?search=%s" utf-8))(add-to-list 'w3m-search-engine-alist '("q" "http://www.google.com.au/search?hl=en&q=%s+site:stackoverflow.com" utf-8))(add-to-list 'w3m-search-engine-alist '("s" "http://code.ohloh.net/search?s=%s&browser=Default" utf-8))(add-to-list 'w3m-search-engine-alist '("bl" "http://blogsearch.google.com.au/blogsearch?q=%s" utf-8))(add-to-list 'w3m-search-engine-alist '("w" "http://en.wikipedia.org/wiki/Special:Search?search=%s" utf-8))(add-to-list 'w3m-search-engine-alist '("d" "http://dictionary.reference.com/search?q=%s" utf-8))(add-to-list 'w3m-search-engine-alist '("j" "http://www.google.com.au/search?ie=UTF-8&oe=UTF-8&sourceid=navclient&btnI=1&q=%s+site:developer.mozilla.org" utf-8))))(setq w3m-command-arguments '("-F" "-cookie")w3m-mailto-url-function 'compose-mailbrowse-url-browser-function 'w3mmm-text-html-renderer 'w3m);; bind this function to ‘a’, which is the normal w3m bookmark binding:(eval-after-load "w3m" '(progn(w3m-lnum-mode 1)));; external browser(setq browse-url-generic-program(cond(*is-a-mac* "open")(*linux* (executable-find "firefox"))))(setq browse-url-browser-function 'browse-url-generic);; use external browser to search programming stuff(defun w3mext-hacker-search ()"search word under cursor in google code search and stackoverflow.com"(interactive)(require 'w3m)(let ((keyword (w3m-url-encode-string (thing-at-point 'symbol))));; google(browse-url-generic(concat "http://www.google.com.au/search?hl=en&q=%22"keyword"%22"(if buffer-file-name(concat "+filetype%3A" (file-name-extension buffer-file-name))"") ))(browse-url-generic(concat "http://www.google.com.au/search?hl=en&q="keyword"+site:stackoverflow.com" ));; koders.com(browse-url-generic(concat "http://code.ohloh.net/search?s=\""keyword"\"&browser=Default&mp=1&ml=1&me=1&md=1&filterChecked=true" ))))(defun w3mext-open-link-or-image-or-url ()"Opens the current link or image or current page's uri or any url-like text under cursor in firefox."(interactive)(let (url)(if (or (string= major-mode "w3m-mode") (string= major-mode "gnus-article-mode"))(setq url (or (w3m-anchor) (w3m-image) w3m-current-url)))(browse-url-generic (if url url (car (browse-url-interactive-arg "URL: "))))))(global-set-key (kbd "C-c b") 'w3mext-open-link-or-image-or-url)(defun w3mext-search-js-api-mdn ()"search current symbol under cursor in Mozilla Developer Network (MDN)"(interactive)(let ((keyword (thing-at-point 'symbol)))(w3m-search "j" keyword)))(add-hook 'prog-mode-hook '( lambda () (local-set-key (kbd "C-c ; h") 'w3mext-hacker-search)));; Find in blog.;; @see: http://blog.csdn.net/superwen_go/article/details/8241601(add-hook 'w3m-fontify-after-hook 'remove-w3m-output-garbages)(defun remove-w3m-output-garbages ()"去掉w3m輸出的垃圾."(interactive)(let ((buffer-read-only))(setf (point) (point-min))(while (re-search-forward "[\200-\240]" nil t)(replace-match " "))(set-buffer-multibyte t))(set-buffer-modified-p nil)))(provide 'init-emacs-w3m) ;;; init-emacs-w3m.el ends here
5 額外資源
如果找不到w3m的執行程序，可以在我的github上面下載，這個是最新版的：
https://github.com/yangwen0228/unimacs/tree/master/utils/extra-bins/msys64
也可以下載我的配置，或者使用其中的部分配置，配置文件放置在 personal/configures中。
Date: 2016-12-31 10:38
Created: 2017-03-11 周六 21:53
Emacs 26.0.50.4 (Org mode 8.2.10)
Validate
和sizeof(指針))
