%D \module
%D   [       file=m-json,
%D        version=2022.04.11, % 2012.08.03,
%D          title=\CONTEXT\ Modules,
%D       subtitle=Json,
%D         author=Hans Hagen,
%D           date=\currentdate,
%D      copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.

\startmodule [json]

%registerctxluafile{util-jsn}{autosuffix}
\registerctxluafile{util-tbs}{}

% \def\u#1#2#3#4{\cldcontext{utf.char(0x#1#2#3#4)}}

\startluacode

    local tablestore = utilities.tablestore
    local field      = tablestore.field

    interfaces.implement {
        name      = "loadtable",
        actions   = tablestore.load,
        arguments = { "optional", "optional" },
        public    = true,
        protected = true,
    }

    interfaces.implement {
        name      = "tablefield",
        actions   = function(namespace,name)
            local data = field(namespace,name)
            if data then
                context(data)
            end
        end,
        arguments = "2 arguments",
        public    = true,
        protected = true,
    }

    interfaces.implement {
        name      = "tablefielddefault",
        actions   = function(namespace,name,default)
            local data = field(namespace,name,default)
            if data then
                context(data)
            end
        end,
        arguments = "3 arguments",
        public    = true,
    }

    local replace   = lpeg.replacer("@","%%")
    local lpegmatch = lpeg.match

    interfaces.implement {
        name      = "tableformatted",
        actions   = function(namespace,name,fmt)
            local data = field(namespace,name)
            if data then
                context(lpegmatch(replace,fmt),data)
            end
        end,
        arguments = "3 arguments",
        public    = true,
    }

    interfaces.implement {
        name      = "tablelength",
        actions   = { tablestore.length, context },
        arguments = "2 arguments",
        public    = true,
    }

    utilities.json.field  = tablestore.field
    utilities.json.loaded = tablestore.loaded
    utilities.json.length = tablestore.length

\stopluacode

\let\loadjsonfile     \loadtable
\let\jsonfield        \tablefield
\let\jsonfielddefault \tablefielddefault
\let\jsonformatted    \tableformatted
\let\jsonlength       \tablelength

\stopmodule