mako-语法

变量
变量替换,可以做计算

this is x: ${x}
pythagorean theorem:  ${pow(x,2) + pow(y,2)}

变量在render中传入

# -*- coding:utf-8 -*-
from mako.template import Template
mytemplate = Template("hello, ${name}!")
print(mytemplate.render(name="jack"))

转义

${"this is some text" | u}

u代表rul转义
h代表html转义
x代表xml转义
trim代表trim函数
参考：http://docs.makotemplates.org/en/latest/filtering.html

控制结构
if

% if x==5:
    this is some output
% endif

for

% for a in ['one', 'two', 'three', 'four', 'five']:
    % if a[0] == 't':
    its two or three
    % elif a[0] == 'f':
    four/five
    % else:
    one
    % endif
% endfor

循环上下文

<ul>
% for a in ("one", "two", "three"):
    <li>Item ${loop.index}: ${a}</li>
% endfor
</ul>

提供循环的额外信息：
http://docs.makotemplates.org/en/latest/runtime.html#loop-context

注释
单行

## this is a comment.

多行

<%doc>
    these are comments
    more comments
</%doc>

行拼接

here is a line that goes onto \
another line.

python块
用 <% %> 可以写python块

this is a template
<%
    x = db.get_resource('foo')
    y = [z.element for z in x if x.frobnizzle==5]
%>
% for elem in y:
    element: ${elem}
% endfor

模块级的代码

this is a template
<%
    x = db.get_resource('foo')
    y = [z.element for z in x if x.frobnizzle==5]
%>
% for elem in y:
    element: ${elem}
% endfor

Tags
类似xml的tag属性

<%include file="foo.txt"/>
<%def name="foo" buffered="True">
    this is a def
</%def>

有些属性需要参数，因为可以在tag属性中插入表达式${}

<%include file="/foo/bar/${myfile}.txt"/>

<%page>

<%page args="x, y, z='default'"/>

<%page cached="True" cache_type="memory"/>

暂时先记住，一个模板里只有一个 <%page>标签

<%include>
%include可以插入其他文件的内容

<%include file="header.html"/>
    hello world
<%include file="footer.html"/>

可以使用<%page>输入参数

<%include file="toolbar.html" args="current_section='members', username='ed'"/>

<%def>
%def标签定义了一个python函数

<%def name="myfunc(x)">
    this is myfunc, x is ${x}
</%def>

${myfunc(7)}

参考：
http://docs.makotemplates.org/en/latest/defs.html

<%block>
可以是匿名的

<%block filter="h">
    some <html> stuff.
</%block>

block可以继承

<html>
    <body>
    <%block name="header">
        <h2><%block name="title"/></h2>
    </%block>
    ${self.body()}
    </body>
</html>

详细参考：
http://docs.makotemplates.org/en/latest/defs.html#blocks
http://docs.makotemplates.org/en/latest/inheritance.html

<%namespace>
和python的import类似

<%namespace file="functions.html" import="*"/>

namespcae
http://docs.makotemplates.org/en/latest/namespaces.html

<%inherit>

<%inherit file="base.html"/>

更多参考：
http://docs.makotemplates.org/en/latest/inheritance.html

<%nsname:defname>
用户定义的tag可以
使用<%:>的形式
分别使用 <%call>标签

<%mynamespace:somedef param="some value">
    this is the body
</%mynamespace:somedef>

为了创建一个特定的标签，能够接收body，参考：
http://docs.makotemplates.org/en/latest/defs.html#defs-with-content

<%call>
参考
http://docs.makotemplates.org/en/latest/defs.html#defs-with-content

<%doc>
处理多行注释

<%doc>
    these are comments
    more comments
</%doc>

<%text>
延迟

<%text filter="h">
    heres some fake mako ${syntax}
    <%def name="x()">${x}</%def>
</%text>

Exiting Early from a Template

% if not len(records):
    No records found.
    <% return STOP_RENDERING %>
% endif

<%
    if not len(records):
        return STOP_RENDERING
%>

旧版本，空串也能代替STOP_RENDERING符号

<% return '' %>
posted @ 2017-01-18 13:35  zhangshihai1232  阅读(738)  评论(0)    收藏  举报