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-rw-r--r--util/human/io.lua10
1 files changed, 9 insertions, 1 deletions
diff --git a/util/human/io.lua b/util/human/io.lua
index a38ab5dd..a175f5af 100644
--- a/util/human/io.lua
+++ b/util/human/io.lua
@@ -131,7 +131,15 @@ local function new_table(col_specs, max_width)
local output = {};
for i, column in ipairs(col_specs) do
local width = widths[i];
- local v = (not titles and column.mapper or tostring)(row[not titles and column.key or i] or "", row);
+ local v = row[not titles and column.key or i];
+ if not titles and column.mapper then
+ v = column.mapper(v, row);
+ end
+ if v == nil then
+ v = "";
+ else
+ v = tostring(v);
+ end
if #v < width then
if column.align == "right" then
v = padleft(v, width);