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-rw-r--r--util/format.lua7
1 files changed, 6 insertions, 1 deletions
diff --git a/util/format.lua b/util/format.lua
index da48c60a..76296fbf 100644
--- a/util/format.lua
+++ b/util/format.lua
@@ -29,7 +29,8 @@ local control_symbols = {
["\027"] = "\226\144\155", ["\028"] = "\226\144\156", ["\029"] = "\226\144\157",
["\030"] = "\226\144\158", ["\031"] = "\226\144\159", ["\127"] = "\226\144\161",
};
-local supports_p = pcall(string.format, "%p", "");
+local supports_p = pcall(string.format, "%p", ""); -- >= Lua 5.4
+local supports_a = pcall(string.format, "%a", 0.0); -- > Lua 5.1
local function format(formatstring, ...)
local args = pack(...);
@@ -66,6 +67,8 @@ local function format(formatstring, ...)
if option == "s" and t == "string" and not arg:find("[%z\1-\31\128-\255]") then
-- No UTF-8 or control characters, assumed to be the common case.
return
+ elseif option == "s" and t ~= "string" then
+ args[i] = tostring(arg);
end
if option ~= "s" and option ~= "q" and option ~= "p" then
@@ -79,6 +82,8 @@ local function format(formatstring, ...)
elseif expects_integer[option] and num_type(arg) ~= "integer" then
args[i] = tostring(arg);
return "[%s]";
+ elseif (option == "a" or option == "A") and not supports_a then
+ return "%x";
else
return -- acceptable number
end