diff options
Diffstat (limited to 'util/datamanager.lua')
| -rw-r--r-- | util/datamanager.lua | 66 |
1 files changed, 37 insertions, 29 deletions
diff --git a/util/datamanager.lua b/util/datamanager.lua index 754c5620..e5a74acd 100644 --- a/util/datamanager.lua +++ b/util/datamanager.lua @@ -8,6 +8,12 @@ local io_open = io.open; local tostring = tostring; local error = error; +local indent = function(f, i) + for n = 1, i do + f:write("\t"); + end +end + module "datamanager" @@ -29,34 +35,36 @@ do end local function basicSerialize (o) - if type(o) == "number" or type(o) == "boolean" then - return tostring(o) - else -- assume it is a string - return format("%q", tostring(o)) - end + if type(o) == "number" or type(o) == "boolean" then + return tostring(o); + else -- assume it is a string -- FIXME make sure it's a string. throw an error otherwise. + return (format("%q", tostring(o)):gsub("\\\n", "\\n")); + end end -local function simplesave (f, o) - if type(o) == "number" then - f:write(o) - elseif type(o) == "string" then - f:write(format("%q", o)) - elseif type(o) == "table" then - f:write("{\n") - for k,v in pairs(o) do - f:write(" [", basicSerialize(k), "] = ") - simplesave(f, v) - f:write(",\n") - end - f:write("}\n") - elseif type(o) == "boolean" then - f:write(o and "true" or "false"); - else - error("cannot serialize a " .. type(o)) - end - end - +local function simplesave (f, o, ind) + if type(o) == "number" then + f:write(o) + elseif type(o) == "string" then + f:write((format("%q", o):gsub("\\\n", "\\n"))) + elseif type(o) == "table" then + f:write("{\n") + for k,v in pairs(o) do + indent(f, ind); + f:write("[", basicSerialize(k), "] = ") + simplesave(f, v, ind+1) + f:write(",\n") + end + indent(f, ind-1); + f:write("}") + elseif type(o) == "boolean" then + f:write(o and "true" or "false"); + else + error("cannot serialize a " .. type(o)) + end +end + ------- API ------------- function getpath(username, host, datastore) @@ -72,13 +80,13 @@ end function load(username, host, datastore) local data, ret = loadfile(getpath(username, host, datastore)); if not data then - log("warn", "Failed to load "..datastore.." storage ('"..ret.."') for user: "..(username or nil).."@"..(host or nil)); + log("warn", "Failed to load "..datastore.." storage ('"..ret.."') for user: "..(username or "nil").."@"..(host or "nil")); return nil; end setfenv(data, {}); local success, ret = pcall(data); if not success then - log("error", "Unable to load "..datastore.." storage ('"..ret.."') for user: "..(username or nil).."@"..(host or nil)); + log("error", "Unable to load "..datastore.." storage ('"..ret.."') for user: "..(username or "nil").."@"..(host or "nil")); return nil; end return ret; @@ -87,11 +95,11 @@ end function store(username, host, datastore, data) local f, msg = io_open(getpath(username, host, datastore), "w+"); if not f then - log("error", "Unable to write to "..datastore.." storage ('"..msg.."') for user: "..(username or nil).."@"..(host or nil)); + log("error", "Unable to write to "..datastore.." storage ('"..msg.."') for user: "..(username or "nil").."@"..(host or "nil")); return nil; end f:write("return "); - simplesave(f, data); + simplesave(f, data, 1); f:close(); return true; end |