Le 21 sept. 07 à 09:30, Alain Matthes a écrit : > > hello Ben > > How to make a test like : > > if right = } then right =\\right > > I found : #!/usr/bin/env ruby sel = STDIN.read.chomp sel.match(/^(.+)(.)$/) left = $~[1] right = $~[2] if right == '}' left = '\\{' right = '\\}' end print "\\left#{left}\\right#{right}" Regards Alain