Allow value expressions to gain access to option settings.

For example, "ledger eval options.limit" prints 0 (for false), but:
"ledger -l hello eval options.limit" print "hello"s, since the value of
options.limit, once set to a value, is that string.  For flag options,
such as -Y, eval prints 0 if unset, and 1 if set.

This feature allows value expressions to be conditionalized based on the
presence of user options.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/global.h b/src/global.h
index f7f10b30..85745ba2 100644
--- a/src/global.h
+++ b/src/global.h
@@ -109,6 +109,8 @@ See LICENSE file included with the distribution for details and disclaimer.";
     out << std::endl;
   }
 
+  option_t<global_scope_t> * lookup_option(const char * p);
+
   virtual expr_t::ptr_op_t lookup(const string& name);
 
   OPTION(global_scope_t, debug_);