用小村庄渲染静态HTML [英] Rendering static HTML with hamlet
问题描述
如何使用 hamlet 框架从Haskell内部生成静态HTML页面?
How can I use the hamlet framework to generate static HTML pages from inside Haskell?
注意:这个问题有意没有显示出研究成果.对于我的研究工作，请参见下面的问答式答案.
Note: This question intentionally doesn't show research effort. For my research effort, see the Q&A-style answer below.
推荐答案
hamlet产生QuasiQuoters，其评估为 Text.Blaze.Html.Renderer.String.renderHtml 将它们呈现为字符串.
hamlet yields QuasiQuoters that are evaluated to blaze expressions. Using Text.Blaze.Html.Renderer.String.renderHtml you can render them to a string.
让我们从一个简单的非HTML示例开始:
Let's start with a simple non-HTML example:
{-# LANGUAGE QuasiQuotes #-}
import Text.Blaze.Html.Renderer.String (renderHtml)
import Text.Hamlet
greet name = [shamlet|Hello world #{name}|]
-- This prints "Hello world John Foo"
main = putStrLn $ renderHtml $ greet "John Foo"
For increased efficiency, you could also use Text instead of String Text.Blaze.Html.Renderer.Text.renderHtml
将此内容写入文件与标准的Haskell方法没有什么不同.例如，可以使用writeFile代替putStrLn来执行此操作.您只需要修改最后一行
Writing this to a file is not different from the standard Haskell approach. You can do this, for example, by using writeFile instead of putStrLn. You only need to modify the last line
main = do writeFile "greet.txt" $ renderHtml $ greet "John Foo"
现在，我们只需要添加HTML标记，而无需使用纯文本.有关更多参考，请参见莎士比亚文档.
Now we only need to add HTML markup instead of using plain text. See the Shakespeare documentation for further reference.
{-# LANGUAGE QuasiQuotes #-}
import Text.Blaze.Html.Renderer.String (renderHtml)
import Text.Hamlet
greet name = [shamlet|
$doctype 5
<html>
<head>
<title>Greeting for #{name}
<body>
<h2>
Hello world #{name}|]
main = writeFile "greet.html" $ renderHtml $ greet "John Foo"
greet.html现在包含一个静态呈现的问候HTML.
greet.html now contains a statically rendered greeting HTML.
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