Lua: Add unit names support.

Add support for using unit names in ProtoField integer types by
using base.UNIT_STRING.

Add unit name table argument in ProtoField.float() and
ProtoField.double() (and made backward compatibility).

The use of base.UNIT_STRING is not really the best API for adding
unit names in Lua, but is the simples solution without adding new
arguments to ProtoField.

Change-Id: Ib5d064480cffd970a41db1764440642f6c593bb2
Reviewed-on: https://code.wireshark.org/review/19313
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/epan/wslua/make-init-lua.pl b/epan/wslua/make-init-lua.pl
index f1b2e945f8..9c848048c1 100755
--- a/epan/wslua/make-init-lua.pl
+++ b/epan/wslua/make-init-lua.pl
@@ -184,6 +184,12 @@ while(<PROTO_H>) {
         $bases_table .= "\t[\"$1\"] = $2,\n";
     }
 
+    if (/^#define\s+BASE_(UNIT_STRING)[ ]*((0x)?[0-9]+) / ) {
+        # Handle BASE_UNIT_STRING as a valid base value in Lua
+        my $num = hex($2);
+        $bases_table .= "\t[\"$1\"] = $num,\n";
+    }
+
     if (/^.define\s+PI_SEVERITY_MASK /) {
         $in_severity = 1;
         $skip_this = 1;