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Milestone1的讨论 #2

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13leaf opened this issue Mar 7, 2015 · 6 comments
Closed

Milestone1的讨论 #2

13leaf opened this issue Mar 7, 2015 · 6 comments
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@bigbigant
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@13leaf
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13leaf commented Mar 7, 2015

  1. Etag中对+操作符的编译结果是否考虑覆盖php默认+的实现?
    例如{{a+b}}转换到etag_add(a,b)而不是((a)+(b))。好处是可以直接实现ab为字符串时的连接行为，无需增加新的字符串concat符。(在其它模板引擎中使用~来做字符串连接)。覆盖的问题会增加函数开销，导致解释结果的性能下降。
  2. Etag转换过程中使用的一些内置函数(原属api)Runtime怎么安置？
    例如1中的etag_add，是否直接在Runtime实现并作为一个全局函数?

下面是参考其它模板引擎的一些比较有趣的feature，看看是否有必要在后续考虑引入:

以jade为代表的依靠缩写表达式来节约html的冗余性。以slim举例:

body
  p
    |
      This is a test of the text block.

结果将是

<body><p>This is a test of the text block.</p></body>

list作用域

类似Handlebars可以这样使用.
{{#list people}}{{firstName}} {{lastName}}{{/list}}
等同于{{people.firstName}} {{people.lastName}}

View的数据绑定与共享传递

在laravel中可以对View绑定数据提供者，以此实现MVC。还可以让视图之间做数据传递(可以解决之前专题组件的联动更新问题?)。
@13leaf 13leaf added the discuss label Mar 7, 2015
@13leaf 13leaf added this to the M1 milestone Mar 7, 2015
@bigbigant
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必要的函数应该是在Runtime下实现，但应该是带着namespace的, 类似 Etag\Runtime\op_add。
也可以实现为Etag\Runtime\Op::add()

用+替代~, 从兼容旧版的角度来看，不建议进行。

list作用域 这个觉得不错。

缩写表达式来简化 HTML标签 和 View数据绑定还没看，了解中：）

@bigbigant
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支持宏不错
多终端 适配
I18n也不错

@13leaf
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13leaf commented Mar 11, 2015

支持宏是什么呀?
多终端适配和i18n的具体方案是?

@bigbigant
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Macro looks like follows.

{#to define#}
{{define SayHello}}
  Hello {{$target}}!
{{/define}}

{#to use#}
{{do SayHello target="World"}}

{#outputs "Hello World!" #}

I've no idea about the schema of i18n now, Lol

@13leaf
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13leaf commented Mar 11, 2015

明白了。这个在twig里面用这种形式:

{%macro SayHello(target)%}
    {{"Hello"~target}}
{%endmacro%}

其实和sass中@mixin属同样概念

@bigbigant
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了解

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