Fix #84

doc/snippy.txt

@@ -130,6 +130,10 @@ part of the description:
 <
 Please be aware that the legacy syntax doesn't support snippet options.
 
+A single empty line at the end of the snippet body is discarded, regardless of
+being indented. This is for maintaining compatibility with SnipMate, but also
+allows snippets to be conveniently separated by a single blank line.
+
                                                       *snippy-snippet-options*
 
 The `option`s control the behavior of the expansion of the snippet and are

lua/snippy/builder.lua

@@ -17,10 +17,10 @@ local varmap = {
         return fn.expand('<cword>')
     end,
     TM_LINE_INDEX = function()
-        return fn.line('.') - 1
+        return tostring(fn.line('.') - 1)
     end,
     TM_LINE_NUMBER = function()
-        return fn.line('.')
+        return tostring(fn.line('.'))
     end,
     TM_FILENAME = function()
         return fn.expand('%:t')

lua/snippy/reader/snipmate.lua

@@ -97,6 +97,9 @@ local function read_snippets_file(snippets_file)
             end
         end
         if not snips[prefix] or snips[prefix].priority <= priority then
+            if #body > 1 and body[#body] == '' then
+                body = vim.list_slice(body, 1, #body - 1)
+            end
             snips[prefix] = {
                 kind = 'snipmate',
                 prefix = prefix,

test/snippets/blank.snippets

@@ -0,0 +1,12 @@
+snippet blank1
+	This is line 1.
+	This is line 2.
+	Then a blank line.
+
+
+snippet blank2
+	Indented line is also removed.
+
+snippet blank3
+	Blank line at the end of the file.
+

test/unit/reader_spec.lua

@@ -134,4 +134,14 @@ describe('Snippet reader', function()
         end
         assert.is_same({}, total_failed)
     end)
+
+    it('removes last blank line from snippet', function()
+        snippy.setup({ snippet_dirs = './test/snippets/', enable_auto = true })
+        vim.cmd('set filetype=blank')
+        assert.is_truthy(require('snippy.shared').config.snippet_dirs)
+        assert.is_not.same({}, require('snippy.reader.snipmate').list_available_scopes())
+        assert.is_same(4, #snippy.snippets.blank.blank1.body)
+        assert.is_same(1, #snippy.snippets.blank.blank2.body)
+        assert.is_same(1, #snippy.snippets.blank.blank3.body)
+    end)
 end)