Replacing tabs with spaces in Emacs

How to replace tabs with spaces in Emacs?

You can first select the regions of text for converting/replacing, then run

M-x untabify

to replace all tabs with appropriate number of spaces.

There is also a M-x tabify for replacing sequences of spaces to tabs.

There are also commands to convert tabs to spaces or vice versa, always preserving the columns of all non-whitespace text. M-x tabify scans the region for sequences of spaces, and converts sequences of at least two spaces to tabs if that can be done without changing indentation. M-x untabify changes all tabs in the region to appropriate numbers of spaces.

Reference: GNU Emacs Manual.

Eric Ma

Eric is a systems guy. Eric is interested in building high-performance and scalable distributed systems and related technologies. The views or opinions expressed here are solely Eric's own and do not necessarily represent those of any third parties.

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