Re: table key starting with backslash

[Christopher Kappe <nox_diesque@...>]

Still wondering if anyone can say sth. regarding this topic.
If the escape character "\" isn't allowed as first character in a string
key, it should be stated somewhere. Also, I would be interested in an
explanation why it is like that.

Am 09.10.2015 um 11:36 schrieb Christopher Kappe:
> Hello,
> 
> I think I stumbled upon an error in the Lua parser or at least in the
> manual.
> I want to write a table mapping from special characters given in their
> LaTeX representation to the utf8 character. Like this (using the well
> known syntactic sugar for string keys):
> 
> local latexToUtf8 = {
>   \\\"a = "ä", -- without escaping: \"a
>   \\\"o = "ö"
>   -- etc.
> }
> 
> This does not compile! However, this works:
> 
> local latexToUtf8 = {
>   ["\\\"a"] = "ä",
>   ["\\\"o"] = "ö"
> }
> 
> This contradicts the following sentence from
> http://www.lua.org/manual/5.3/manual.html
> A field of the form name = exp is equivalent to ["name"] = exp.
> 
> Because all accents combined with all possible letters makes a large
> number, this table is going to be quite long, so I would really be happy
> if I could save the [""]
> 
> Regards
> Christopher
>