Ruby 映射嵌套数组

Question

我正在尝试将这个字符串拆分为嵌套数组：

x = '{type:paragaph|class:red|content:[class:intro|body:This is the introduction paragraph.][body:This is the second paragraph.]}'
x << '{type:image|class:grid|content:[id:1|title:image1][id:2|title:image2][id:3|title:image3]}'

到目前为止：

x.scan(/\{(.*?)\}/).map {|m| m[0].split(/\|\s*(?=[^\[\]]*(?:\[|$))/)}

成功划分为：

[
  ["type:paragaph", "class:red", "content:[class:intro|body:This is the introduction paragraph.][body:This is the second paragraph.]"],
  ["type:image", "class:grid", "content:[id:1|title:image1][id:2|title:image2][id:3|title:image3]"]
]

---

我正在尝试添加额外的地图：

x.scan(/\{(.*?)\}/).map {|m| m[0].split(/\|\s*(?=[^\[\]]*(?:\[|$))/)}.map {|m| m[0].split(/\:\s*(?=[^\[\]]*(?:\[|$))/)}

返回：

[["type", "paragaph"], ["type", "image"]] 

然而我却在追求这个：

[
  [['type','paragaph'], ['class','red'], ['content',['[class:intro|body:This is the introduction paragraph.][body:This is the second paragraph.]']],
  [['type','image'], ['class','grid'], ['content','[id:1|title:image1][id:2|title:image2][id:3|title:image3]']]
]

地图似乎将自身应用于整个 2 级数组，而不是其中的每个元素。我在这里做错了什么？

Answer 1

在第二张地图中，您只拆分第一个元素，而不是使用地图拆分每个元素

x.scan(/\{(.*?)\}/).map {|m| m[0].split(/\|\s*(?=[^\[\]]*(?:\[|$))/)}.map {|m| m.map {|n| n.split(/\:\s*(?=[^\[\]]*(?:\[|$))/)}}

您还可以将正则表达式提取到变量中进行一些清理

regex = /\|\s*(?=[^\[\]]*(?:\[|$))/

x.scan(/\{(.*?)\}/).map {|m| m[0].split(regex)}.map {|m| m.map {|n| n.split(regex)}}