Fix for #647: Add g:tagbar_wrap option

autoload/tagbar.vim

@@ -954,10 +954,19 @@ function! s:InitWindow(autoclose) abort
     " Window-local options
 
     setlocal nolist
-    setlocal nowrap
     setlocal winfixwidth
     setlocal nospell
 
+    if g:tagbar_wrap == 0
+        setlocal nowrap
+    else
+        setlocal wrap
+        if exists('+linebreak')
+            setlocal breakindent
+            setlocal breakindentopt=shift:4
+        endif
+    endif
+
     if g:tagbar_show_linenumbers == 0
         setlocal nonumber
         if exists('+relativenumber')

doc/tagbar.txt

@@ -882,6 +882,22 @@ Example:
 >
         let g:tagbar_use_cache = 0
 <
+                                                            *g:tagbar_wrap*
+g:tagbar_wrap~
+Default: 0
+
+If set to non-zero, this will enable line wrapping on the tagbar window. This
+option will use the built-in |wrap| vim option on the tagbar window to
+enable line wrapping. This also will use the |breakindent| and
+|breakindentopt| options in vim to set the indentation of the wrapped lines.
+
+Note: This requires VIM to be compiled with the |+linebreak| option for the
+wrap intentation to function.
+
+Example:
+>
+       let g:tagbar_wrap = 1
+>
 
 ------------------------------------------------------------------------------
 HIGHLIGHT COLOURS                                           *tagbar-highlight*

plugin/tagbar.vim

@@ -109,6 +109,7 @@ function! s:setup_options() abort
         \ ['zoomwidth', 1],
         \ ['silent', 0],
         \ ['use_cache', 1],
+        \ ['wrap', 0],
     \ ]
 
     for [opt, val] in options