add {{hint:Field}}

anki/template/hint.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Copyright: Damien Elmes <anki@ichi2.net>
+# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
+
+import re
+from anki.hooks import addHook
+
+def hint(txt, extra, context, tag, fullname):
+    if not txt.strip():
+        return ""
+    # random id
+    domid = "hint%d" % id(txt)
+    return """
+<a href="#"
+onclick="this.style.display='none';document.getElementById('%s').style.display='block';return false;">
+%s</a><div id="%s" style="display: none">%s</div>
+""" % (domid, _("Show %s") % tag, domid, txt)
+
+def install():
+    addHook('fmod_hint', hint)

anki/template/template.py

@@ -4,6 +4,7 @@ import collections
 from anki.utils import stripHTML
 from anki.hooks import runFilter
 from anki.template import furigana; furigana.install()
+from anki.template import hint; hint.install()
 from anki.lang import _
 
 clozeReg = r"\{\{c%s::(.*?)(::(.*?))?\}\}"