咨询IDEA和VIM代码行展开快捷键及HTML代码格式化方法

Hey there! Let me walk you through exactly what you need to know, since I’ve dealt with these exact formatting quirks before:

VIM: Reverse of Shift+J (Line Expansion & Formatting) #

Shift+J is great for squishing lines together, but getting that code back to a clean, expanded state is totally doable:

• For code blocks wrapped in braces (like {var a=1;}), pop your cursor inside the braces and run =i{—VIM will auto-format the entire block to match your indentation rules, adding spaces around operators and fixing spacing (turning it into { var a = 1; }).
• If you just need to split a single line of multiple statements (e.g., var a=1;var b=2;), use f; to jump to a semicolon, hit r<Enter> to replace it with a newline, then adjust indentation as needed. For bulk jobs, a quick macro will save you time.
• Pro tip: Install the vim-autoformat plugin, and you can hit <leader>f (default leader is the backslash key) to one-click format any code block to expanded, clean formatting.

IDEA: Reverse of Alt+Shift+J (Line Expansion & Formatting) #

IDEA’s got you covered with built-in tools that make this way easier:

• The go-to shortcut is Ctrl+Alt+L (Windows/Linux) or Cmd+Opt+L (Mac). Select your compact code (like {var a=1;}) and hit this—IDEA will auto-expand it to match your configured code style (adding spaces around operators, fixing brace spacing, etc.).
• If you just want to split a single line into multiple lines (e.g., one line with three statements into three separate lines), use Ctrl+Shift+Enter (Windows/Linux) or Cmd+Shift+Enter (Mac)—it’ll split at logical points and auto-indent.
• You can even set a custom shortcut for splitting lines specifically: Go to File > Settings > Keymap, search for "Split Line", and assign a key combo that fits your workflow.

Formatting HTML to Add Spaces Around Content #

Turning <div>hello</div> into <div> hello </div> is straightforward in both editors:

In IDEA: #

1. First, tweak your code style settings to enforce this: Head to File > Settings > Editor > Code Style > HTML > Other, then check the option labeled something like "Insert space between tag name and content" (wording varies slightly by IDEA version).
2. Select your HTML code and hit Ctrl+Alt+L/Cmd+Opt+L—done, the spaces will be added automatically.

In VIM: #

• If you use a formatting plugin like vim-autoformat with htmlbeautifier, configure the plugin to add spaces around tag content, then use the plugin’s format shortcut (like <leader>f) to apply it.
• For a quick regex fix (good for simple, non-nested tags), run this command: :%s/<\([a-z]*\)>\([^<]*\)<\/\1>/<\1> \2 <\/\1>/g—it’ll insert spaces around the content inside any basic closed tag.

内容的提问来源于stack exchange，提问作者kimwz.kr