[TxMt] Snippet or command

[Ben Alpert]

Try this command (before: none, input: selection or nothing, output:
replace selection):

#!/usr/bin/env ruby

sel = STDIN.read.chomp
sel.match(/^(.+)(.)$/)
left = $~[1]
right = $~[2]
print "\\left#{left}\\right#{right}"

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