用xcode中的“(换行){”替换“{”的正则表达式-RegularExpressiontoreplace“{”with“(newline){”inxcode

47  

You could try the following:

你可以试试下面的方法:

• In the Find box, type space \ { $
• 在“查找”框中，输入空格\ {$
• In the Replace box, type control+q return {
• 在替换框中，类型控制+q返回{

control+q is needed to quote the return key. There’s no visual feedback for typing control+q return, so the only visible character in the replace box is the opening curly brace:

需要控件+q来引用返回键。输入控制+q返回没有视觉反馈，所以替换框中唯一可见的字符是左大括号:

Although this answers your question, there’s (at least!) one problem: it won’t indent the opening curly brace, so something like

虽然这回答了你的问题，但至少有一个问题:它不会缩进大括号，所以类似。

- (void)method {
    for (obj in collection) {
        NSLog(@"%@", obj);
    }
}

is converted to

被转换为

- (void)method
{
    for (obj in collection)
{
        NSLog(@"%@", obj);
    }
}

The menu item Edit > Format > Re-Indent will place the opening curly braces in the correct indentation tab but there might be non-desired side effects to your code style.

菜单项编辑>格式> reindent将在正确的缩进选项卡中放置左花括号，但您的代码风格可能有不希望的副作用。

Edit: as commented in the other answer, you might want a regular expression that matches an arbitrary number of whitespaces surrounding the curly brace, e.g. \s*{\s*$

编辑:正如在另一个答案中评论的那样，您可能想要一个正则表达式，该表达式与围绕花括号的任意数目的空格匹配，例如:s*{s \s*$

2  

search for this \s\{ and replace with \n\{

搜索这个\s\{并替换为\n\{

Your editor needs to support regular expressions in both search and replace fields. If you can't use the \n in the replace dialog because it takes the string literally, try a option-enter followed by {, that works in most editors I tried.

编辑器需要在搜索和替换字段中支持正则表达式。如果您不能在替换对话框中使用\n，因为它从字面上理解了字符串，请尝试一个选项-enter，然后是{，在我尝试过的大多数编辑器中工作。

• the \s is a space character (if there could be more spaces you can use \s+)
• \s是一个空格字符(如果有更多的空格可以使用\s+)

note it has to be \s+ instead of \s* as someone fixed because indeed \s* also matches in case there is no space.

注意，它必须是\s+而不是\s*作为一个固定的，因为确实\s*也匹配，以防没有空格。

• the \{ needs the backslash because {
  needs to be escaped as it has another meaning in a regex
• \{需要反斜杠，因为{需要转义，因为它在regex中有另一个含义
• the \n is for a newline
• \n表示换行

The best way however would be to reformat your code where you choose to have your { on a new line. Most editors allow you to set these options.

但是，最好的方法是重新格式化您选择在新行中使用{的代码。大多数编辑器允许您设置这些选项。

Another way is to use a code beautifier, you can google these online and some allow to change settings like that.

另一种方法是使用代码美化器，您可以在网上谷歌这些和一些允许改变这样的设置。

1  

You can use [\n\r] to describe newline It's a shame, I came across with that when I tap on magnifier icon next to search bar while finding something in a single file.

你可以用[\n\r]来描述换行，真可惜，当我点击搜索栏旁边的放大镜图标时，在一个文件中发现了一些东西。

To see several other expressions:

查看其他几个表达式:

1. go to a file
2. 去一个文件
3. do cmd+f and open search
4. 做cmd+f和开放搜索
5. tap on the magnifier icon at the left-hand side of search field at the top
6. 点击搜索框左边的放大镜图标
7. you can see other expressions in the dropdown menu
8. 您可以在下拉菜单中看到其他表达式

0  

i searched a while to find out, that you have to enable the find options for regular expressions first on the small magnifier glass in the left side of the find-input field ;)

我搜索了一会儿才发现，您必须首先在find-input字段左侧的小放大镜上启用正则表达式的查找选项;

0  

Just copy an example of needed replacement string (new line or else) from code to replacement box.

只需将所需的替换字符串(新行或其他)从代码复制到替换框。