查看“︁模块:Common”︁的源代码

local p = {}

local cache = {}

function p.trim(value)
    if value == nil then
        return ''
    end
    return mw.text.trim(tostring(value))
end

function p.getArg(frame, key, default)
    local value = frame.args[key]
    if value == nil and frame:getParent() then
        value = frame:getParent().args[key]
    end
    value = p.trim(value)
    if value == '' then
        return default or ''
    end
    return value
end

function p.toText(value, sep)
    if value == nil then
        return ''
    end
    if type(value) == 'boolean' then
        return value and '是' or '否'
    end
    if type(value) == 'table' then
        local parts = {}
        for _, item in ipairs(value) do
            parts[#parts + 1] = tostring(item)
        end
        return table.concat(parts, sep or '、')
    end
    return tostring(value)
end

function p.normalizeKey(value)
    return mw.ustring.lower(p.trim(value))
end

function p.readJsonPage(titleText)
    local pageName = p.trim(titleText)
    if pageName == '' then
        return nil
    end

    if cache[pageName] ~= nil then
        return cache[pageName]
    end

    local title = mw.title.new(pageName)
    if not title then
        cache[pageName] = nil
        return nil
    end

    local content = title:getContent()
    if not content or content == '' then
        cache[pageName] = nil
        return nil
    end

    local ok, data = pcall(mw.text.jsonDecode, content)
    if not ok or type(data) ~= 'table' then
        cache[pageName] = nil
        return nil
    end

    cache[pageName] = data
    return data
end

function p.getCurrentTitleText()
    return mw.title.getCurrentTitle().text
end

return p