Implement emacs-style join_lines

Default.sublime-keymap

@@ -40,6 +40,7 @@
     {"keys": ["ctrl+l"], "command": "sbp_center_view"},
     {"keys": ["ctrl+x", "g"], "command": "sbp_goto_line"},
     {"keys": ["alt+g"], "command": "sbp_goto_line"},
+    {"keys": ["super+shift+6"], "command": "sbp_join_lines"},
 
     // Goto open file
     {"keys": ["ctrl+x", "ctrl+f"], "command": "show_overlay", "args": {"overlay": "goto", "show_files": true} },

jove.py

@@ -1319,6 +1319,31 @@ def run_cmd(self, util):
             view.insert(util.edit, point.b, "\n")
         view.run_command("move", {"by": "characters", "forward": False})
 
+class SbpJoinLinesCommand(SbpTextCommand):
+    def run_cmd(self, util):
+        if util.state.argument_supplied:
+            forward = True
+        else:
+            forward = False
+        view = self.view
+
+        def join(cursor):
+            if not forward:
+                current_line = view.line(cursor)
+                view.run_command("move", {"by": "lines", "forward": False})
+                cursor = view.sel()[0]
+                if view.line(cursor) == current_line:
+                    # must be on the first line; do nothing
+                    return None
+            else:
+                # Move to end-of-line
+                current_line = view.line(cursor)
+                cursor = sublime.Region(current_line.b, current_line.b)
+            view.run_command("join_lines")
+            return view.sel()[0]
+
+        util.for_each_cursor(join)
+
 class SbpKillRegionCommand(SbpTextCommand):
     is_kill_cmd = True
     def run_cmd(self, util, is_copy=False):

sbp.sublime-commands

@@ -17,6 +17,7 @@
     {"caption": "Sublemacs - Go to Line", "command": "sbp_goto_line"},
 
     {"caption": "Sublemacs - Open line", "command": "sbp_open_line"},
+    {"caption": "Sublemacs - Join Lines", "command": "sbp_join_lines"},
     {"caption": "Sublemacs - Center View Around Point", "command": "sbp_center_view"},
 
     //