[ShopSuite-dev] [rational type] X/1 --> X

[Davi Leal]

I have modified rational_out() to realize the X/1 --> X conversion. The GUI is
more readable and clean now.

I have tried some modifications to rational_in() but I have not finished it
yet. Its goal is to check the format at input so as to fit fully the below
regular expressions. If the input does not fit then RETURN_UNDEF is used. See
the attached rational.c file. Execute 'cvs diff rational.c'.

    Number:   "^ *[0-9]\+ *$"
    Rational: "^ *[0-9]\+\/[0-9]\+ *$"

Do you know about regcomp() and regexec(). Do you have any idea of how check
if the input match a regular expressions?.