Module:string utilities

Documentation for this module may be created at Module:string utilities/doc

local module_name = "string_utilities"
local export = {}

local format_escapes = {
    ["op"] = "{",
    ["cl"] = "}",
}

function export.format(str, tbl)
    return (string.gsub(str, "{(\\?)((\\?)[^{}]*)}", function (p1, name, p2)
        if #p1 + #p2 == 1 then
            return format_escapes[name] or error(module_name .. ".format: unrecognized escape sequence '{\\" .. name .. "}'")
        else
            return tbl[name] or error(module_name .. ".format: '" .. name .. "' not found in table")
        end
    end))
end

return export