Notepad++中字符后转大写及冒号后字母转大写的实现方法

Hey there! Let's break down how to solve your two Notepad++ tasks easily using regular expression replacements—they're perfect for these kinds of text transformations.

If you mean converting all content after the first character of each line to uppercase (e.g., turning hello world into hELLO WORLD), here's how to do it:

• Open your file in Notepad++ and press Ctrl+H to open the Replace dialog.
• At the bottom left, check the Regular expression option (and uncheck ". matches newline" if it's selected).
• In the Find what field, enter: ^(.)(.*)$
• In the Replace with field, enter: $1\U$2
• Click Replace All to apply the change to your entire document.

How this works: #

• ^(.) captures the first character of each line.
• (.*) captures all remaining content on the line.
• \U$2 converts the captured remaining content to uppercase, while $1 keeps the first character as-is.

For your specific example (turning nerd:class:ace make:milk lake:cake into nerd:Class:Ace make:Milk lake:Cake), follow these steps:

• Open your file in Notepad++ and press Ctrl+H to open the Replace dialog.
• Check the Regular expression option (leave ". matches newline" unchecked).
• In the Find what field, enter: :\K([a-z])
• In the Replace with field, enter: \U$1
• Click Replace All to update all instances.

Alternative method (if you prefer): #

You can also use this pair if the first one feels unfamiliar:

• Find what: (:)([a-z])
• Replace with: $1\U$2

How this works: #

• :\K tells Notepad++ to match the colon but exclude it from the replacement (so we don't retype the colon).
• ([a-z]) captures the first lowercase letter immediately after the colon.
• \U$1 converts that captured letter to uppercase.

内容的提问来源于stack exchange，提问作者Maestro Bm