There are patches for this so the above can be expressed with something like this: [ (x) | x ] http://lua-users.org/files/wiki_insecure/power_patches/5.4/lu

There are patches for this so the above can be expressed with something like this: [ (x) | x ] http://lua-users.org/files/wiki_insecure/power_patches/5.4/lua-5.4.2_shorthand-lambdas.patch http://lua-users.org/files/wiki_insecure/power_patches/5.4/l... And for Lua 5.1: http://lua-users.org/files/wiki_insecure/power_patches/5.1/lua-5.1.4_shorthand-lambdas.patch http://lua-users.org/files/wiki_insecure/power_patches/5.1/l... (I personally don’t use patches like this because “Lua 5.1” is something pretty standardized with a bunch of different implementations; e.g. I wrote my Lua book with a C# developer who was using the moonsharp Lua implementation)