From ad8e1d30bf217e2985671652960d28ecedb6ea75 Mon Sep 17 00:00:00 2001
From: Steven Stallion <sstallion@gmail.com>
Date: Mon, 18 Mar 2019 14:35:28 -0700
Subject: [PATCH] Add g:vimwiki_create_link option to prevent link creation.

Adds a new global option named create_link, which allows the user to
control :VimwikiFollowLink behavior when attempting to follow a
non-existent link. The original behavior of creating a new link is
preserved. However, by setting this option to 0, new links will not be
created when pressing return over regular text. Closes #528.
---
 autoload/vimwiki/base.vim |  2 +-
 autoload/vimwiki/vars.vim |  1 +
 doc/vimwiki.txt           | 12 ++++++++++++
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/autoload/vimwiki/base.vim b/autoload/vimwiki/base.vim
index bbb1963..4f6e234 100644
--- a/autoload/vimwiki/base.vim
+++ b/autoload/vimwiki/base.vim
@@ -1200,7 +1200,7 @@ function! vimwiki#base#follow_link(split, ...)
   else
     if a:0 >= 3
       execute "normal! ".a:3
-    else
+    elseif vimwiki#vars#get_global('create_link')
       call vimwiki#base#normalize_link(0)
     endif
   endif
diff --git a/autoload/vimwiki/vars.vim b/autoload/vimwiki/vars.vim
index d60a561..a9d82a2 100644
--- a/autoload/vimwiki/vars.vim
+++ b/autoload/vimwiki/vars.vim
@@ -145,6 +145,7 @@ function! s:read_global_settings_from_user()
         \ 'auto_chdir': {'type': type(0), 'default': 0, 'min': 0, 'max': 1},
         \ 'autowriteall': {'type': type(0), 'default': 1, 'min': 0, 'max': 1},
         \ 'conceallevel': {'type': type(0), 'default': 2, 'min': 0, 'max': 3},
+        \ 'create_link': {'type': type(0), 'default': 1, 'min':0, 'max': 1},
         \ 'diary_months': {'type': type({}), 'default':
         \   {
         \     1: 'January', 2: 'February', 3: 'March',
diff --git a/doc/vimwiki.txt b/doc/vimwiki.txt
index e8de748..8b956c1 100644
--- a/doc/vimwiki.txt
+++ b/doc/vimwiki.txt
@@ -2541,6 +2541,18 @@ Value           Description~
 Default: 1
 
 
+------------------------------------------------------------------------------
+*g:vimwiki_create_link*
+
+Create target wiki page if it does not exist. See |:VimwikiFollowLink|.
+
+Value           Description~
+0               Do not create target wiki page.
+1               Create target wiki page.
+
+Default: 1
+
+
 ------------------------------------------------------------------------------
 *VimwikiLinkHandler*