Merge remote-tracking branch 'aschrab/trailing' into trailing

doc/UltiSnips.txt

@@ -552,6 +552,10 @@ The options currently supported are: >
        Vim settings and insert the tab characters as is. This option is useful
        for snippets involved with tab delimited formats, for example.
 
+   s   Remove whitespace immediately before the cursor at the end of a line
+       before jumping to the next tabstop.  This is useful if there is a
+       tabstop with optional text at the end of a line.
+
 The end line is the 'endsnippet' keyword on a line by itself. >
 
    endsnippet

plugin/UltiSnips/__init__.py

@@ -288,6 +288,10 @@ class Snippet(object):
             return match
         return False
 
+    def has_option(self, opt):
+        """ Check if the named option is set """
+        return opt in self._opts
+
     def matches(self, trigger):
         # If user supplies both "w" and "i", it should perhaps be an
         # error, but if permitted it seems that "w" should take precedence
@@ -412,11 +416,7 @@ class Snippet(object):
             v.append(line_ind + line[tabs:])
         v = '\n'.join(v)
 
-        if parent is None:
-            si = SnippetInstance(None, indent, v, start, end, visual_content = visual_content,
-                    last_re = self._last_re, globals = self._globals)
-        else:
-            si = SnippetInstance(parent, indent, v, start, end, visual_content,
+        si = SnippetInstance(self, parent, indent, v, start, end, visual_content,
                 last_re = self._last_re, globals = self._globals)
 
         return si
@@ -743,6 +743,13 @@ class SnippetManager(object):
         if self._cs:
             self._ctab = self._cs.select_next_tab(backwards)
             if self._ctab:
+                before, after = _vim.buf.current_line_splitted
+                if self._cs.snippet.has_option("s"):
+                    if after == "":
+                        m = re.match( r'(.*?)\s+$', before )
+                        if m:
+                            lineno = _vim.buf.cursor.line
+                            _vim.text_to_vim( Position(lineno,0), Position(lineno,len(before)+len(after)), m.group(1) )
                 _vim.select(self._ctab.start, self._ctab.end)
                 jumped = True
                 if self._ctab.no == 0:

plugin/UltiSnips/text_objects/_snippet_instance.py

@@ -15,12 +15,12 @@ class SnippetInstance(EditableTextObject):
     also a TextObject because it has a start an end
     """
 
-    def __init__(self, parent, indent, initial_text, start, end, visual_content, last_re, globals):
+    def __init__(self, snippet, parent, indent, initial_text, start, end, visual_content, last_re, globals):
         if start is None:
             start = Position(0,0)
         if end is None:
             end = Position(0,0)
-
+        self.snippet = snippet
         self._cts = 0
 
         self.locals = {"match" : last_re}

test.py

@@ -2605,6 +2605,16 @@ ${0}
     keys = "test" + EX + JF + "sub junk {}"
     wanted = "package c03;\nsub junk {}\n1;"
 # End: Folding Interaction  #}}}
+# Trailing whitespace {{{#
+class RemoveTrailingWhitespace(_VimTest):
+    snippets = ("test", """Hello\t ${1:default}\n$2""", "", "s")
+    wanted = """Hello\nGoodbye"""
+    keys = "test" + EX + BS + JF + "Goodbye"
+class LeaveTrailingWhitespace(_VimTest):
+    snippets = ("test", """Hello \t ${1:default}\n$2""")
+    wanted = """Hello \t \nGoodbye"""
+    keys = "test" + EX + BS + JF + "Goodbye"
+# End: Trailing whitespace }}}#
 
 # Cursor Movement  {{{#
 class CursorMovement_Multiline_ECR(_VimTest):