[ale] expect script question

[fletch at phydeaux.org (Fletch)]

>>>>> "Yong" == Yong Wang <yongwang at mindspring.com> writes:

    Yong> Thanks to all who responded to my email. To escape +, it
    Yong> take "\\+", which is a bit surprising. This is not the
    Yong> regular expression I am used to. In sed, this can be done:

    Yong> echo "+OK 0 0" | sed -e 's/\+OK \([0-9]*\)
    Yong> \([0-9]*\)/\1:\2/'

        It's the same regular expressions, it's a different quoting
mechanism.  You've got to double the \ inside the ""'s to get the
backslash itself into the string.  "\+" is simply `+'.  The same thing
would happen in the shell if you used double quotes there rather than
single quotes.

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