定义自定义Ruby运算符 [英] Define custom Ruby operator

问题描述

问题是:我可以在Ruby中定义我的自己的自定义运算符，除了在 "运算符"?

The question is: Can I define my own custom operator in Ruby, except for the ones found in "Operator Expressions"?

例如:1 %! 2

推荐答案

是的，尽管有一些注意事项，但可以创建自定义运算符. Ruby本身并不直接支持它，但是 superators gem 巧妙地将运算符链接在一起.这使您可以创建自己的运算符，但有一些限制:

Yes, custom operators can be created, although there are some caveats. Ruby itself doesn't directly support it, but the superators gem does a clever trick where it chains operators together. This allows you to create your own operators, with a few limitations:

$ gem install superators19

然后:

require 'superators19'

class Array
  superator "%~" do |operand|
    "#{self} percent-tilde #{operand}"
  end
end

puts [1] %~ [2]
# Outputs: [1] percent-tilde [2]

由于上述限制，我无法执行您的1 %! 2示例. 文档包含完整的详细信息，但不能为Fixnums赋予上级者，而!可以'不要成为超级管理员.

Due to the aforementioned limitations, I couldn't do your 1 %! 2 example. The Documentation has full details, but Fixnums can't be given a superator, and ! can't be in a superator.

这篇关于定义自定义Ruby运算符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！