In IntelliJ IDEA how do I replace text with a new line?
Quickly replace text with a new line in IntelliJ IDEA by enabling the Regex option in the Replace function. Press Ctrl+R
(Cmd+R on macOS), input your desired text in the Find box and replace it with \\n
for a new line.
Example:
- Find:
old_text
- Replace with:
\\n
Remember: In Regex, a double backslash is used due to the special nature of the backslash character.
Mastering replacements using Regex
Let's dive deeper into using Regex with the Replace function.
Real-world examples of text replacement
Situation 1: Converting CSV data to multiline text
If you need to turn a CSV file into mulitiline text, here's how:
- Find:
,
- Replace with:
\\n
Situation 2: Adding extra line breaks
Want to double space your lines? Here, \\n
becomes \\n\\n
:
- Find:
\\n
- Replace with:
\\n\\n
Boost productivity with keyboard shortcuts
IntelliJ IDEA's wide range of keyboard shortcuts can significantly speed up your text replacement tasks:
- On a Mac, the shortcut combo
⌘-shift-enter
is like vim's\r
function, which essentially corresponds to\n
with Regex in a Unix environment. Ctrl+Shift+F
is your universal remote for text across all files. For text in the current file,Ctrl+F
is your friend. Once done, hitCtrl+R
to replace.
Replacing special characters with Regex
Regex allows you to replace more than just simple text. Here are a few examples of special character replacements:
- Tabs -> Spaces: Find:
\\t
Replace with: - Spaces before period -> Newline before period: Find:
\\.
Replace with:\\n.
When using Regex, remember that not all characters are equal; escape those that have special meanings! After all, we're coding, not playing hide and seek.😉
Advanced text manipulations
IntelliJ IDEA supports Regex for complex text manipulations:
- For conditional line breaks, use positive lookaheads or lookbehinds within your regex to add new lines only under certain conditions.
- With capturing groups (parentheses), catch and release parts of the matched text in the replace field using
$1
,$2
, etc. Who says fishing is only a weekend activity?
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