什么是编程习语? [英] What is a programming idiom?
问题描述
我看到编程习惯用法"一词泛滥，就好像人们普遍理解的那样.但是，在搜索结果和stackoverflow中，我看到了所有内容...
I see the phrase "programming idiom" thrown around as if it is commonly understood. Yet, in search results and stackoverflow I see everything...
从微型:
- 增加变量
- 代表无限循环
- 交换变量值
到中等:
- PIMPL
- RAII
- Format, comments, style...
到宏:
- Programming paradigm or common library features as idiom
- Process model as idiom
- A collection of idioms equals a new paradigm
编程习惯用语"是否有一个通用定义?由于编程习惯用法"已在许多范围中使用:
Is there a single, common definition for "programming idiom"? Since "programming idiom" is used in many scopes:
- 微观:语法上的细微差别或通用语法
- 中等:常见的样式和样式
- 宏:将范式编程为习惯用法
在任何这些范围中使用该短语是否有效?到目前为止，答案集中在句法成语上.其他人也有效吗?
Is it valid to use the phrase in any of these scopes? The answers so far focus on syntactic idioms. Are the others valid as well?
推荐答案
编程习惯用法是用特定语言编写任务的常用方法.例如，经常在C中这样写一个循环:
A programming idiom is the usual way to code a task in a specific language. For example a loop is often written like this in C:
for (i=0; i<10; i++)
PHP将了解类似的构造:
PHP will understand a similar construct:
for ($i = 1; $i <= 10; $i++)
但是在PHP中不建议在数组上循环.在这种情况下，您将使用:
But it is discouraged in PHP for looping over an array. In this case you would use:
foreach ($arr as $value)
在Ruby中，您将使用:
Whereas in Ruby, you would use:
(1..10).each
循环，或:
array.each
用这些语言编写循环有很多可能性.使用该习语可以使经验丰富的读者立即识别出该习语.然后，他们可以将时间花在更重要的问题上.
There are many many possibilities to write a loop in those languages. Using the idiom makes it immediately identifiable by experienced readers. They can then spend their time on more important problems.
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