diff options
| -rw-r--r-- | luatexbase-mcb.dtx | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/luatexbase-mcb.dtx b/luatexbase-mcb.dtx index 3740e06..6d23eb8 100644 --- a/luatexbase-mcb.dtx +++ b/luatexbase-mcb.dtx @@ -572,7 +572,7 @@ local function listhandler (name) for _, f in ipairs(callbacklist[name]) do ret = f.func(head, ...) if ret == false then - log("function '%s' returned false\nin callback '%s'", + log("function '%s' returned false in callback '%s'", f.description, name) break end @@ -611,14 +611,22 @@ local function firsthandler (name) end % \end{macrocode} % -% Handler for |simple| callbacks. +% Handler for |simple| callbacks. If a function returns false, we return +% this value, without going through other functions. % % \begin{macrocode} local function simplehandler (name) return function(...) + local ret = true for _, f in ipairs(callbacklist[name]) do - f.func(...) + ret = f.func(...) + if ret == false then + log("function '%s' returned false in callback '%s'", + f.description, name) + return false + end end + return ret end end % \end{macrocode} |