Add modules/feature/jump (WIP)

modules/feature/jump/config.el

@@ -0,0 +1,65 @@
+;;; feature/jump/config.el
+
+;; "What am I looking at?"
+;;
+;; This module helps you answer that question. It helps you look up whatever
+;; you're looking at, with:
+;;
+;; 1. A dwim Jump-to-definition functionality that "just works", with the help
+;;    of `dumb-jump'.
+;; 2. A dwim interface to the new (and experimental) xref API built into Emacs.
+;;    Once its API is more stable, backends could be written (or provided by
+;;    plugins) to create universal find-references and find-definition
+;;    functionality. Warning: xref may change drastically in future updates.
+;; 3. Simple ways to look up the symbol at point in external resources, like
+;;    stackoverflow, devdocs.io or google.
+;; 4. TODO Automatic and transparent integration with cscope databases and ctags
+;;    files. Databases are optionally isolated to the Emacs environment.
+
+(defvar +lookup-search-url-alist
+  '(("Google"        . "https://google.com/?q=%s")
+    ("DuckDuckGo"    . "https://duckduckgo.com/?q=%s")
+    ("DevDocs.io"    . "http://devdocs.io/#q=%s")
+    ("StackOverflow" . "https://stackoverflow.com/search?q=%s"))
+  "An alist that maps online resources to their search url.")
+
+(set! :popup "*xref*" :size 10 :noselect t :autokill t :autoclose t)
+
+;; Let me control what backends to fall back on
+(setq-default xref-backend-functions '())
+
+(def-setting! :xref-backend (mode function)
+  "TODO"
+  `(add-hook! ,mode
+     (add-hook 'xref-backend-functions ',function nil t)))
+
+;; Recenter after certain jumps
+(add-hook!
+  '(imenu-after-jump-hook evil-jumps-post-jump-hook)
+  'recenter)
+
+
+;;
+;; Packages
+;;
+
+(def-package! dumb-jump
+  :commands (dumb-jump-go dumb-jump-quick-look dumb-jump-back)
+  :config
+  (setq dumb-jump-default-project doom-emacs-dir))
+
+
+;; (def-package! ggtags
+;;   :commands (ggtags-find-tag-dwim
+;;              ggtags-find-tag-mouse
+;;              ggtags-find-definition
+;;              ggtags-find-reference
+;;              ggtags-find-other-symbol
+;;              ggtags-find-tag-regexp
+;;              ggtags-idutils-query
+;;              ggtags-grep
+;;              ggtags-find-file
+;;              ggtags-query-replace
+;;              ggtags-delete-tags
+;;              ggtags-explain-tags))
+