Module:PageSummary

此模块的文档可以在Module:PageSummary/doc创建

local p = {}

local function safeStrip(text)
    if not text then return "" end
    text = string.gsub(text, "<ref.-</ref>", "")
    text = string.gsub(text, "<ref.->", "")
    text = string.gsub(text, "<!%-%-.-%-%->", "")
    
    local imagePrefixes = {"[Ff]ile:", "[Ii]mage:", "文件:", "图像:"}
    for _, prefix in ipairs(imagePrefixes) do
        text = string.gsub(text, "%[%[" .. prefix .. ".-%]%]", "")
    end

    for i = 1, 5 do
        local newText = string.gsub(text, "{{[^{}]+}}", "")
        if newText == text then break end
        text = newText
    end

    text = string.gsub(text, "\n==+.-==+", " ")
    text = string.gsub(text, "\n%s*[*#:]+", " ")
    text = string.gsub(text, "&[Nn][Bb][Ss][Pp];", " ")
    text = string.gsub(text, "\n", " ")
    text = string.gsub(text, "%s+", " ")
    return mw.text.trim(text)
end

function p.getSummaryAndImage(frame)
    local pageName = frame.args[1] or ""
    local title = mw.title.new(pageName)
    if not title or not title.exists then return "页面不存在" end
    
    local content = title:getContent()
    local rawExcerpt = mw.ustring.sub(content, 1, 500)

    local firstImage = string.match(rawExcerpt, "%[%[([Ff]ile:.-)[|%]]") or 
                       string.match(rawExcerpt, "%[%[([Ii]mage:.-)[|%]]") or
                       string.match(rawExcerpt, "%[%[(文件:.-)[|%]]")

    local cleanText = safeStrip(rawExcerpt)

    local targetLen = 150
    local summary = mw.ustring.sub(cleanText, 1, targetLen)
    
    while mw.ustring.sub(summary, -1) == "[" do
        summary = mw.ustring.sub(summary, 1, -2)
    end

    local _, opens = string.gsub(summary, "%[%[", "")
    local _, closes = string.gsub(summary, "%]%]", "")
    if opens > closes then
        local rest = mw.ustring.sub(cleanText, targetLen + 1, targetLen + 100)
        local endLink = string.find(rest, "]]", 1, true)
        if endLink then
            summary = summary .. string.sub(rest, 1, endLink + 1)
        else
            local lastOpen = string.find(summary:reverse(), "%[%[")
            if lastOpen then summary = string.sub(summary, 1, #summary - lastOpen - 1) end
        end
    end
    
    summary = mw.text.trim(summary)
    if mw.ustring.len(cleanText) > targetLen then summary = summary .. "..." end

    local container = mw.html.create('div'):css({['margin']='15px 0', ['display']='flow-root'})
    if firstImage then
        container:wikitext('[[' .. firstImage .. '|150px|right|link=' .. pageName .. ']]')
    end
    container:tag('div')
        :css({['font-size']='1.4em', ['font-weight']='bold', ['margin-bottom']='8px'})
        :wikitext('[[' .. pageName .. ']]')
    container:tag('div')
        :css({['line-height']='1.6', ['color']='#202122'})
        :wikitext(summary)

    return tostring(container)
end

return p