Introduce the 'completion_extra_word_chars' option

This string option is used to get all the additional characters
that should be considered as "word" character for the purpose of
insert mode completion.

Fixes #758

1 files changed, 7 insertions, 2 deletions

diff --git a/src/word_db.hh b/src/word_db.hh
index 3dcf455d..c23d266e 100644
--- a/src/word_db.hh
+++ b/src/word_db.hh
@@ -13,12 +13,13 @@ namespace Kakoune
 using RankedMatchList = Vector<RankedMatch>;
 
 // maintain a database of words available in a buffer
-class WordDB
+class WordDB : public OptionManagerWatcher
 {
 public:
     WordDB(const Buffer& buffer);
+    ~WordDB();
     WordDB(const WordDB&) = delete;
-    WordDB(WordDB&&) = default;
+    WordDB(WordDB&&);
 
     RankedMatchList find_matching(StringView str);
 
@@ -28,6 +29,10 @@ private:
     void add_words(StringView line);
     void remove_words(StringView line);
 
+    void rebuild_db();
+
+    void on_option_changed(const Option& option) override;
+
     struct WordInfo
     {
         StringDataPtr word;