From e108a70f9115fc503c96628748185267afd15f00 Mon Sep 17 00:00:00 2001
From: zztrieuzz <longtrieu1912@gmail.com>
Date: Thu, 23 Sep 2021 11:23:42 +0700
Subject: [PATCH] feat: map <c-w> to delete pair

---
 README.md                     |  1 +
 lua/nvim-autopairs.lua        | 24 +++++++++++++++++++++---
 tests/nvim-autopairs_spec.lua | 13 ++++++++++++-
 3 files changed, 34 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index f2299cf..e9333cf 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,7 @@ local enable_afterquote = true  -- add bracket pairs after quote
 local enable_check_bracket_line = true  --- check bracket in same line
 local check_ts = false
 local map_bs = true  -- map the <BS> key
+local map_c_w = false -- map <c-w> to delete an pair if possible
 
 ```
 
diff --git a/lua/nvim-autopairs.lua b/lua/nvim-autopairs.lua
index bd09143..78f23e3 100644
--- a/lua/nvim-autopairs.lua
+++ b/lua/nvim-autopairs.lua
@@ -13,6 +13,7 @@ M.state = {
 
 local default = {
     map_bs = true,
+    map_c_w = false,
     disable_filetype = { 'TelescopePrompt', 'spectre_panel' },
     ignored_next_char = string.gsub([[ [%w%%%'%[%"%.] ]], '%s+', ''),
     check_ts = false,
@@ -302,12 +303,21 @@ M.on_attach = function(bufnr)
             { expr = true, noremap = true }
         )
     end
+    if M.config.map_c_w then
+        api.nvim_buf_set_keymap(
+            bufnr,
+            'i',
+            '<c-w>',
+            string.format('v:lua.MPairs.autopairs_c_w(%d)', bufnr),
+            { expr = true, noremap = true }
+        )
+    end
     api.nvim_buf_set_var(bufnr, 'nvim-autopairs', 1)
 end
 
-M.autopairs_bs = function(bufnr)
+local autopairs_delete = function(bufnr,key)
     if is_disable() then
-        return utils.esc(utils.key.bs)
+        return utils.esc(key)
     end
     local line = utils.text_get_current_line(bufnr)
     local _, col = utils.get_cursor()
@@ -343,7 +353,15 @@ M.autopairs_bs = function(bufnr)
             end
         end
     end
-    return utils.esc(utils.key.bs)
+    return utils.esc(key)
+end
+
+M.autopairs_c_w = function (bufnr)
+    return autopairs_delete(bufnr, "<c-g>U<c-w>")
+end
+
+M.autopairs_bs = function (bufnr)
+    return autopairs_delete(bufnr,utils.key.bs)
 end
 
 M.autopairs_map = function(bufnr, char)
diff --git a/tests/nvim-autopairs_spec.lua b/tests/nvim-autopairs_spec.lua
index 09cb171..b24c6d6 100644
--- a/tests/nvim-autopairs_spec.lua
+++ b/tests/nvim-autopairs_spec.lua
@@ -485,7 +485,18 @@ local data = {
         before = [[{{("It doesn't name %s", ''), 'ErrorMsg'| }},  ]],
         after  = [[{{("It doesn't name %s", ''), 'ErrorMsg''|' }},  ]],
         end_cursor = 42,
-    }
+    },
+    {
+        setup_func = function()
+            npairs.setup({
+                map_c_w = true
+            })
+        end,
+        name = "map <c-w>",
+        key = "<c-w>",
+        before = [[aa'|' ]],
+        after  = [[aa| ]],
+    },
 }
 
 local run_data = {}