wip

lua/substitute.lua

@@ -56,8 +56,14 @@ function substitute.operator_callback(vmode)
     end
   end
 
-  local wrapper = substitute.state.wrappers and require("substitute.wrappers").build(substitute.state.wrappers)
-    or doSubstitution
+  local wrapper
+  if type(substitute.state.wrappers) == "function" then
+    wrapper = require("substitute.wrappers").build(substitute.state.wrappers(substitute.state))
+  elseif type(substitute.state.wrappers) == "table" then
+    wrapper = require("substitute.wrappers").build(substitute.state.wrappers)
+  else
+    wrapper = doSubstitution
+  end
 
   wrapper(substitute.state, doSubstitution)
 

spec/substitute/wrappers/config_spec.lua

@@ -0,0 +1,59 @@
+local substitute = require("substitute")
+
+local function execute_keys(feedkeys)
+  local keys = vim.api.nvim_replace_termcodes(feedkeys, true, false, true)
+  vim.api.nvim_feedkeys(keys, "x", false)
+end
+
+local function get_buf_lines()
+  return vim.api.nvim_buf_get_lines(0, 0, -1, true)
+end
+
+local buf
+describe("Substitute wrappers", function()
+  before_each(function()
+    substitute.setup()
+
+    buf = vim.api.nvim_create_buf(false, true)
+    vim.api.nvim_command("buffer " .. buf)
+  end)
+
+  it("should be taken from a function", function()
+    vim.api.nvim_buf_set_lines(buf, 0, -1, true, { "Lorem", "ipsum", "dolor", "sit", "amet" })
+
+    vim.keymap.set({ "n", "x" }, "]s", function()
+      require("substitute").operator({
+        wrappers = function(_)
+          return { "linewise" }
+        end,
+      })
+    end, { noremap = true })
+
+    execute_keys("lly2l")
+    execute_keys("j")
+    execute_keys("]s2l")
+
+    assert.are.same({ "Lorem", "ip", "re", "m", "dolor", "sit", "amet" }, get_buf_lines())
+  end)
+
+  it("could be conditionnal", function()
+    vim.api.nvim_buf_set_lines(buf, 0, -1, true, { "    Lorem    ", "ipsum", "dolor", "sit", "amet" })
+
+    vim.keymap.set({ "n", "x" }, "]s", function()
+      require("substitute").operator({
+        wrappers = function(state)
+          return state.vmode == "char" and { "trim" } or { "linewise" }
+        end,
+      })
+    end, { noremap = true })
+
+    execute_keys("yy")
+    execute_keys("jll")
+    execute_keys("]s2l")
+
+    execute_keys("jV")
+    execute_keys("]s")
+
+    assert.are.same({ "    Lorem    ", "ipLoremm", "    Lorem    ", "sit", "amet" }, get_buf_lines())
+  end)
+end)