Module:Unsigned

This module is currently protected from editing as it is a high-use module. Edits made to it will affect many pages. Please discuss changes on the talk page before implementing them. Test changes in the module's /sandbox or in your sandbox.

---

local p = {}

-- There's probably a way to use strptime or some other more sophisticated way, but you're not supposed to be using a non-timestamp as input anyway.

local function endswith(String,End)
    return End == '' or string.sub(String,-string.len(End)) == End
end

local function trim(s)
    return s:gsub("^%s+", ""):gsub("%s+$", ""):gsub("\226\128\142", "")
end

local function addUtcToStringIfItDoesNotEndWithUtc(s)
    if s == "" or endswith(s, "~~~~") then return s end
    if not endswith(s, "(UTC)") then
        return s .. " (UTC)"
    end
    return s
end

local function _main(args)
    local hopefullyTimestamp = args[1] or os.date('%H:%M, %d %B %Y (%Z)')
    return addUtcToStringIfItDoesNotEndWithUtc(trim(hopefullyTimestamp))
end

function p.main(frame)
    local args
    if type(frame.args) == 'table' then
        -- We're being called via #invoke. The args are passed through to the module
        -- from the template page, so use the args that were passed into the template.
        args = frame.args
    else
        -- We're being called from another module or from the debug console, so assume
        -- the args are passed in directly.
        args = frame
    end
    return _main(args)
end

return p