使用标准库可以在Go中嵌套模板吗? [英] Is it possible to have nested templates in Go using the standard library?
问题描述
我如何在python运行时中获得类似于Jinja的嵌套模板. TBC的意思是我如何从基本模板继承一堆模板，就像在Jinja/django-templates中那样，将基本模板中的文件归档.是否可以仅使用标准库中的html/template.
How do I get nested templates like Jinja has in the python runtime. TBC what I mean is how do I have a bunch of templates inherit from a base templates, just filing in blocks of the base templates, like Jinja/django-templates does. Is it possible using just html/template in the standard library.
如果这是不可能的，我有什么选择.胡子似乎是一种选择，但是我会不会错过html/template的那些细微妙功能，例如上下文敏感的转义等?还有什么其他选择?
If that is not a possibility, what are my alternatives. Mustache seems to be an option but would I then be missing out on those nice subtle features of html/template like the context sensitive escaping etc.? What other alternatives are ther?
(环境:Google App Engin，Go runtime v1，Dev-Mac OSx lion)
(Environment: Google App Engin, Go runtime v1, Dev - Mac OSx lion)
感谢阅读.
推荐答案
是可以的. html.Template实际上是一组模板文件.如果您在此集中执行已定义的块，则它有权访问此集中定义的所有其他块.
Yes it is possible. A html.Template is actually a set of template files. If you execute a defined block in this set, it has access to all the other blocks defined in this set.
如果您自己创建此类模板集的映射，则基本上具有Jinja/Django提供的灵活性.唯一的区别是 html/template 包无法直接访问文件系统，因此您必须自己解析和组成模板.
If you create a map of such template sets on your own, you have basically the same flexibility that Jinja / Django offers. The only difference is that the html/template package has no direct access to the file system, so you have to parse and compose the templates on your own.
考虑下面的示例，其中有两个不同的页面("index.html"和"other.html")都从"base.html"继承:
Consider the following example with two different pages ("index.html" and "other.html") that both inherit from "base.html":
// Content of base.html:
{{define "base"}}<html>
<head>{{template "head" .}}</head>
<body>{{template "body" .}}</body>
</html>{{end}}
// Content of index.html:
{{define "head"}}<title>index</title>{{end}}
{{define "body"}}index{{end}}
// Content of other.html:
{{define "head"}}<title>other</title>{{end}}
{{define "body"}}other{{end}}
以及以下模板集图:
tmpl := make(map[string]*template.Template)
tmpl["index.html"] = template.Must(template.ParseFiles("index.html", "base.html"))
tmpl["other.html"] = template.Must(template.ParseFiles("other.html", "base.html"))
您现在可以通过调用
tmpl["index.html"].Execute("base", data)
，您可以通过调用
tmpl["other.html"].Execute("base", data)
通过一些技巧(例如，模板文件的命名约定一致)，甚至可以自动生成tmpl映射.
With some tricks (e.g. a consistent naming convention of your template files), it's even possible to generate the tmpl map automatically.
这篇关于使用标准库可以在Go中嵌套模板吗?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
