VSCode 片段将第一个大写字母转换为小写

问题描述

我想将 VSCode Dart 代码段中的第一个大写字母转换为小写.

I would like to convert the first uppercased letter in a VSCode Dart snippet to a lowercased one.

示例:

MyClassIWroteInMySnippet -> myClassIWroteInMySnippet

在我的搜索过程中，我发现了 this 演示了如何将 camelCase 字符串转换为 UPPER_CASED_STRING 但我没有选择第一个字符(大写)然后将其转换为小写...

During my search, I found this which demonstrate how to convert a camelCase String to UPPER_CASED_STRING but I don't achieve to pick the first character (in uppercase) and then transform it to lowercase...

任何帮助都会非常感激！

谢谢:)

这是我当前的片段

"Mock a service using Mockito": {
    "prefix": "testMockitoService",
    "body": [
        "class _${1}Mock extends Mock implements ${1} {}",
        "",
        "final ${1} = _${1}Mock();", // Here I want to "${1}" be camelCased when I finish to write my class
    ],
    "description": "Mock a service using Mockito"
},

因此，如果我插入我的代码段，并编写MyClass"，我想在我的代码中显示

So If I insert my snippet, and write "MyClass", I want to display in my code

class _MyClassMock extends Mock implements MyClass {}

final myClass = _MyClassMock();

推荐答案

在你澄清问题后，试试这个:

After your clarification in the question, try this:

  "Mock a service using Mockito": {
    "prefix": "testMockitoService",
    "body": [
        "class _${1}Mock extends Mock implements ${1} {}",
        "",
        "final ${1/(.)(.*)/${1:/downcase}$2/} = _${1}Mock();",
    ],
    "description": "Mock a service using Mockito"
  },

---

${1/(.)(.*)/${1:/downcase}$2/} 将第一个字母放入捕获组 1，其余放入捕获组 2.然后第一个字母是小写的，第二组附加在后面.

---

${1/(.)(.*)/${1:/downcase}$2/} puts the first letter into capture group 1 and the rest into capture group 2. Then that first letter is down-cased and the second group appended to that.

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