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-rw-r--r--luatexbase-mcb.dtx18
1 files changed, 8 insertions, 10 deletions
diff --git a/luatexbase-mcb.dtx b/luatexbase-mcb.dtx
index 21786a3..c8c23b0 100644
--- a/luatexbase-mcb.dtx
+++ b/luatexbase-mcb.dtx
@@ -566,7 +566,7 @@ function add_to_callback (name,func,description,priority)
name)
return
end
- if priority_in_callback(name, description) ~= 0 then
+ if priority_in_callback(name, description) then
warning("function '%s' already registered\nin callback '%s'",
description, name)
end
@@ -753,20 +753,20 @@ function priority_in_callback (name, description)
if not name or name == ""
or not callbacktypes[name]
or not description then
- return 0
+ return false
end
local l = callbacklist[name]
- if not l then return 0 end
+ if not l then return false end
for p, f in pairs(l) do
if f.description == description then
return p
end
end
- return 0
+ return false
end
% \end{macrocode}
%
-% Finally, overwrite \code{callback.register} so that bails out in error.
+% Finally, overwrite |callback.register| so that bails out in error.
%
% \begin{macrocode}
callback.register = function ()
@@ -799,11 +799,11 @@ end
luatexbase.add_to_callback("hpack_filter", sample, "sample function one", 1)
luatexbase.add_to_callback("hpack_filter", sample, "sample function two", 2)
luatexbase.add_to_callback("hpack_filter", sample, "sample function three", 1)
- texio.write_nl(prio("hpack_filter", "sample function three"))
+ assert(prio("hpack_filter", "sample function three"))
luatexbase.remove_from_callback("hpack_filter", "sample function three")
- texio.write_nl(prio("hpack_filter", "sample function three"))
+ assert(not prio("hpack_filter", "sample function three"))
luatexbase.reset_callback("hpack_filter")
- texio.write_nl(prio("hpack_filter", "sample function one"))
+ assert(not prio("hpack_filter", "sample function one"))
local function data_one(s)
texio.write_nl("I'm data 1 whith argument: "..s)
@@ -818,7 +818,6 @@ end
return s
end
---[[
luatexbase.create_callback("fooback", "data", data_one)
luatexbase.call_callback("fooback", "default")
luatexbase.add_to_callback("fooback", data_two, "my sample function two", 2)
@@ -828,7 +827,6 @@ end
luatexbase.call_callback("fooback", "all but three")
luatexbase.reset_callback("fooback")
luatexbase.call_callback("fooback", "default")
- --]]
}
%</testplain,testlatex>
%<testplain>\bye