feat(emacs/lean-tags): add lean-global-search

close #170

src/emacs/lean-mode.el

@@ -105,6 +105,7 @@
     ["Show type info"       lean-eldoc-documentation-function lean-eldoc-use]
     ["Fill a placeholder"   lean-fill-placeholder             (looking-at  (rx symbol-start "_"))]
     ["Find tag at point"    lean-find-tag                     t]
+    ["Global tag search"    lean-global-search                t]
     "-----------------"
     ["Run flycheck"         flycheck-compile                  lean-flycheck-use]
     ["List of errors"       flycheck-list-errors              lean-flycheck-use]

src/emacs/lean-tags.el

@@ -8,6 +8,8 @@
 (require 'f)
 (require 'lean-util)
 
+(defalias 'lean-global-search 'tags-apropos)
+
 (defun lean-tags-table-list ()
   (-filter 'f-exists?
            (--map (f-join it "TAGS") (lean-path-list))))