How to insert leading spaces/tabs in yasnippet?

Question

yasnippet does not respect spaces or tabs when they occur at the start a line.

In my snippet file I have

   example

which executes as

example

Escaping with \ doesn't work.

How do I get leading spaces/tabs?

Answer 1

Look for expand-env: ((yas-indent-line 'fixed)):

# -*- mode: snippet -*-
# name: Example for Indent
# key: example
# expand-env: ((yas-indent-line 'fixed))
# --
    example
$0