From ec3f8aedafe09bc8e82f52b963a7995eff6093f4 Mon Sep 17 00:00:00 2001
From: hrsh7th <hrsh7th@gmail.com>
Date: Thu, 26 Aug 2021 16:49:43 +0900
Subject: [PATCH] Add `completion.get_trigger_characters` as configurable
 option

---
 README.md                  | 5 +++++
 lua/cmp/config/default.lua | 3 +++
 lua/cmp/source.lua         | 8 ++++++--
 lua/cmp/types/cmp.lua      | 1 +
 4 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 9f01d65..626747d 100644
--- a/README.md
+++ b/README.md
@@ -187,6 +187,11 @@ length of the word to the left of the cursor is less than `keyword_length`.
 
 Default: `1`
 
+### completion.get_trigger_characters (type: fun(trigger_characters: string[]): string[])
+
+The function to resolve trigger_characters.
+
+Default: `function(trigger_characters) return trigger_characters end`
 
 #### completion.completeopt (type: string)
 
diff --git a/lua/cmp/config/default.lua b/lua/cmp/config/default.lua
index 01bcfe2..de1de23 100644
--- a/lua/cmp/config/default.lua
+++ b/lua/cmp/config/default.lua
@@ -13,6 +13,9 @@ return function()
       completeopt = 'menu,menuone,noselect',
       keyword_pattern = [[\%(-\?\d\+\%(\.\d\+\)\?\|\h\w*\%(-\w*\)*\)]],
       keyword_length = 1,
+      get_trigger_characters = function(trigger_characters)
+        return trigger_characters
+      end
     },
 
     snippet = {
diff --git a/lua/cmp/source.lua b/lua/cmp/source.lua
index 10569b0..f103273 100644
--- a/lua/cmp/source.lua
+++ b/lua/cmp/source.lua
@@ -196,12 +196,16 @@ end
 ---Get trigger_characters
 ---@return string[]
 source.get_trigger_characters = function(self)
+  local trigger_characters = {}
   if self.source.get_trigger_characters then
-    return self.source:get_trigger_characters({
+    trigger_characters = self.source:get_trigger_characters({
       option = self:get_option(),
     }) or {}
   end
-  return {}
+  if config.get().completion.get_trigger_characters then
+    return config.get().completion.get_trigger_characters(trigger_characters)
+  end
+  return trigger_characters
 end
 
 ---Invoke completion
diff --git a/lua/cmp/types/cmp.lua b/lua/cmp/types/cmp.lua
index 5eb2b16..86128fc 100644
--- a/lua/cmp/types/cmp.lua
+++ b/lua/cmp/types/cmp.lua
@@ -63,6 +63,7 @@ cmp.PreselectMode.None = 'none'
 ---@field public completeopt string
 ---@field public keyword_pattern string
 ---@field public keyword_length number
+---@field public get_trigger_characters fun(trigger_characters: string[]): string[]
 
 ---@class cmp.DocumentationConfig
 ---@field public border string[]