[Commits] [wesnoth/wesnoth] df7189: add error reporting when [if] is evaluated with no...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/wesnoth/wesnoth
  Commit: df71897d2f1e42e9e244a4eab7abfbdded1150ef
      https://github.com/wesnoth/wesnoth/commit/df71897d2f1e42e9e244a4eab7abfbdded1150ef
  Author: Chris Beck <render787 at gmail.com>
  Date:   2014-06-05 (Thu, 05 Jun 2014)

  Changed paths:
    M data/lua/wml-tags.lua

  Log Message:
  -----------
  add error reporting when [if] is evaluated with no actions

I frequently make the mistake of using {IF_VAR} but forgetting to
use [then] with it. One solution is to use my own macro, but the
better solution is to add proper error reporting to if. If the
engine parses an [if] tag with no [then], [else], or [elseif], it
should flag an error... otherwise these mistakes are generally
silent and very difficult to find.