Add options to customize vim indentation options

README.md

@@ -62,6 +62,15 @@ require('guess-indent').setup {
     "terminal",
     "prompt",
   },
+  on_tab_options = { -- A table of vim options when tabs are detected 
+    ["expandtab"] = false,
+  },
+  on_space_options = { -- A table of vim options when spaces are detected 
+    ["expandtab"] = true,
+    ["tabstop"] = "detected", -- If the option value is 'detected', The value is set to the automatically detected indent size.
+    ["softtabstop"] = "detected",
+    ["shiftwidth"] = "detected",
+  },
 }
 ```
 

doc/guess_indent.txt

@@ -65,6 +65,12 @@ instead.
 
 `buftype_exclude`	Same as `filetype_exclude` but for 'buftype' instead.
 
+`on_tab_options`	A table of vim options when tabs are detected.
+
+`on_space_options`	A table of vim options when spaces are detected.
+			If the option value is `'detected'`, The value is set
+			to the automatically detected indent size.
+
 ==============================================================================
 COMMANDS                                                *GuessIndent-commands*
 

lua/guess-indent/config.lua

@@ -13,6 +13,15 @@ local default_config = {
     "terminal",
     "prompt",
   },
+  on_tab_options = {
+    ["expandtab"] = false,
+  },
+  on_space_options = {
+    ["expandtab"] = true,
+    ["tabstop"] = "detected",
+    ["softtabstop"] = "detected",
+    ["shiftwidth"] = "detected",
+  },
 }
 
 -- The current active config

lua/guess-indent/init.lua

@@ -65,13 +65,17 @@ local function set_indentation(indentation)
   end
 
   if indentation == "tabs" then
-    set_buffer_opt(0, "expandtab", false)
+    for opt, value in pairs(config.on_tab_options) do
+      set_buffer_opt(0, opt, value)
+    end
     print("Did set indentation to tabs.")
   elseif type(indentation) == "number" and indentation > 0 then
-    set_buffer_opt(0, "expandtab", true)
-    set_buffer_opt(0, "tabstop", indentation)
-    set_buffer_opt(0, "softtabstop", indentation)
-    set_buffer_opt(0, "shiftwidth", indentation)
+    for opt, value in pairs(config.on_space_options) do
+      if value == "detected" then
+        value = indentation
+      end
+      set_buffer_opt(0, opt, value)
+    end
     print("Did set indentation to", indentation, "spaces.")
   else
     print("Failed to detect indentation style.")