fix: handle exclusive selection

lua/snippy/main.lua

@@ -36,18 +36,20 @@ local function cursor_placed()
     api.nvim_feedkeys(t("<cmd>lua require('snippy.buf').setup_autocmds()<CR>"), 'n', true)
 end
 
-local function move_cursor_to(row, col)
+local function move_cursor_to(row, col, after)
     local line = fn.getline(row)
     col = math.max(fn.strchars(line:sub(1, col)) - 1, 0)
+    col = after and col + 1 or col
     api.nvim_feedkeys(t(string.format('%sG0%s', row, string.rep('<Right>', col))), 'n', true)
 end
 
 local function select_stop(from, to)
     api.nvim_win_set_cursor(0, { from[1] + 1, from[2] + 1 })
     ensure_normal_mode()
-    move_cursor_to(from[1] + 1, from[2] + 1)
+    move_cursor_to(from[1] + 1, from[2] + 1, false)
     api.nvim_feedkeys(t('v'), 'n', true)
-    move_cursor_to(to[1] + 1, to[2])
+    local exclusive = vim.o.selection == 'exclusive'
+    move_cursor_to(to[1] + 1, to[2], exclusive)
     api.nvim_feedkeys(t('o<c-g>'), 'n', true)
     cursor_placed()
 end

test/functional/selection_spec.lua

@@ -0,0 +1,66 @@
+local helpers = require('helpers')
+local command = helpers.command
+local exec_lua = helpers.exec_lua
+
+describe('Selection', function()
+    local screen
+
+    before_each(function()
+        helpers.before_each()
+        screen = helpers.screen
+    end)
+
+    after_each(function()
+        screen:detach()
+    end)
+
+    it('inclusive', function()
+        command('set filetype=lua')
+        command('set selection=inclusive')
+        exec_lua('snippy.expand_snippet([[local ${1:var} = ${2:val}${0}]])')
+        screen:expect({
+            grid = [[
+          local ^v{3:ar} = val                                   |
+          {1:~                                                 }|
+          {1:~                                                 }|
+          {1:~                                                 }|
+          {2:-- SELECT --}                                      |
+        ]],
+        })
+        exec_lua([[snippy.next()]])
+        screen:expect({
+            grid = [[
+          local var = ^v{3:al}                                   |
+          {1:~                                                 }|
+          {1:~                                                 }|
+          {1:~                                                 }|
+          {2:-- SELECT --}                                      |
+        ]],
+        })
+    end)
+
+    it('exclusive', function()
+        command('set filetype=lua')
+        command('set selection=exclusive')
+        exec_lua('snippy.expand_snippet([[local ${1:var} = ${2:val}${0}]])')
+        screen:expect({
+            grid = [[
+          local {3:^var} = val                                   |
+          {1:~                                                 }|
+          {1:~                                                 }|
+          {1:~                                                 }|
+          {2:-- SELECT --}                                      |
+        ]],
+        })
+        exec_lua([[snippy.next()]])
+        screen:expect({
+            grid = [[
+          local var = {3:^val}                                   |
+          {1:~                                                 }|
+          {1:~                                                 }|
+          {1:~                                                 }|
+          {2:-- SELECT --}                                      |
+        ]],
+        })
+    end)
+end)