* STRING is the name of a file within that
* directory for this mail message.
*
+ * property: Has a property with key=value
+ * FIXME: if no = is present, should match on any value
+ *
* A mail document also has four values:
*
* TIMESTAMP: The time_t value corresponding to the message's
{ "is", "K" },
{ "id", "Q" },
{ "path", "P" },
+ { "property", "XPROPERTY" },
/*
* Unconditionally add ':' to reduce potential ambiguity with
* overlapping prefixes and/or terms that start with capital