maybe_numb=: 13 : '>({.`}. @. ( _. = a)) (a=._. ". y) ;y'
test_numb=: 3 : 0
try.
0+maybe_numb y
catch.
y , ' is not a number'
end.
)
test_numb '12223'
12223
test_numb 'David'
David is not a number
2007/12/28, Björn Helgason <[EMAIL PROTECTED]>:
>
> maybe_numb=: 13 : '>({.`}. @. ( _. = a)) (a=._. ". y) ;y'
>
> 2+> maybe_numb '12223'
> 12225
>
> maybe_numb 'David'
> David
>
> maybe_numb '3+45'
> 3+45
>
>
> 2007/12/28, Björn Helgason <[EMAIL PROTECTED]>:
> >
> > maybe_numb=: 3 : 0
> > a=._. ". y
> > n=. _. = a
> > >({.`}. @. n ) a;y
> > )
> >
> > 2+> maybe_numb '12223'
> > 12225
> >
> > maybe_numb 'David'
> > David
> > 0+maybe_numb '123'
> > 123
> >
> >
> > 2007/12/27, June Kim <[EMAIL PROTECTED]>:
> > >
> > > 2007/12/28, Björn Helgason <[EMAIL PROTECTED]>:
> > > > Similar to:
> > > >
> > > > maybe_numb=: 3 : 0
> > > > a=._. ". y
> > > > n=. _. = a
> > > > [ ^: n y
> > > > )
> > > > maybe_numb '12223'
> > > > 12223
> > > > maybe_numb 'David'
> > > > David
> > > > maybe_numb '3+45'
> > > > 3+45
> > >
> > > 0+maybe_numb '123'
> > > |domain error
> > > | 0 +maybe_numb'123'
> > >
> > > maybe_numb=: 3 : 0
> > > a=._. ". y
> > > n=. _. = a
> > > y ([ ^: n) a
> > > )
> > >
> > > 0+maybe_numb '123'
> > > 123
> > > 0+maybe_numb '123+1'
> > > |domain error
> > > | 0 +maybe_numb'123+1'
> > >
> > >
> > > >
> > > >
> > > > 2007/12/27, Roger Hui <[EMAIL PROTECTED]>:
> > > > >
> > > > > mbn=: ] [^:(_.=]) _.&".
> > > > > mbn '12e3'
> > > > > 12000
> > > > > mbn '3+45'
> > > > > 3+45
> > > > >
> > > > >
> > > > >
> > > > > ----- Original Message -----
> > > > > From: June Kim < [EMAIL PROTECTED] >
> > > > > Date: Thursday, December 27, 2007 4:41
> > > > > Subject: [Jprogramming] Numbers for numbers, otherwise leaving
> > > alone
> > > > > To: Programming forum < [email protected]>
> > > > >
> > > > > > Current numbers operation is:
> > > > > > ". '12223'
> > > > > > 12223
> > > > > > ". 'David'
> > > > > >
> > > > > >
> > > > > > I could change the behavior when y can't be turned into a
> > > number:
> > > > > >
> > > > > > _99 ". 'David'
> > > > > > _99
> > > > > >
> > > > > > However, how would you define a verb that is:
> > > > > >
> > > > > > maybe_numb '12223'
> > > > > > 12223
> > > > > > maybe_numb 'David'
> > > > > > 'David'
> > > > > >
> > > > > > I am looking for a simple solution.
> > > > >
> > > ----------------------------------------------------------------------
> > > > > For information about J forums see
> > > http://www.jsoftware.com/forums.htm
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > Björn Helgason, Verkfræðingur
> > > > Fugl&Fiskur ehf, Þerneyjarsund 23, Box 127
> > > > 801 Grímsnes ,t-póst: [EMAIL PROTECTED]
> > > > Skype: gosiminn, gsm: +3546985532
> > > > Landslags og skrúðgarðagerð, gröfuþjónusta
> > > > http://groups.google.com/group/J-Programming
> > > >
> > > >
> > > > Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari
> > > einfaldleikans
> > > >
> > > > góður kennari getur stigið á tær án þess að glansinn fari af skónum
> > > > /|_ .-----------------------------------.
> > > > ,' .\ / | Með léttri lund verður |
> > > > ,--' _,' | Dagurinn í dag |
> > > > / / | Enn betri en gærdagurinn |
> > > > ( -. | `-----------------------------------'
> > > > | ) | (\_ _/)
> > > > (`-. '--.) (='.'=)
> > > > `. )----' (")_(")
> > > >
> > > >
> > > ----------------------------------------------------------------------
> > > > For information about J forums see
> > > http://www.jsoftware.com/forums.htm
> > > >
> > >
> > > ----------------------------------------------------------------------
> > >
> > > For information about J forums see http://www.jsoftware.com/forums.htm
> > >
> >
> >
> >
> > --
> > Björn Helgason, Verkfræðingur
> > Fugl&Fiskur ehf, Þerneyjarsund 23, Box 127
> > 801 Grímsnes ,t-póst: [EMAIL PROTECTED]
> > Skype: gosiminn, gsm: +3546985532
> > Landslags og skrúðgarðagerð, gröfuþjónusta
> > http://groups.google.com/group/J-Programming
> >
> >
> > Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari
> > einfaldleikans
> >
> > góður kennari getur stigið á tær án þess að glansinn fari af skónum
> > /|_ .-----------------------------------.
> > ,' .\ / | Með léttri lund verður |
> > ,--' _,' | Dagurinn í dag |
> > / / | Enn betri en gærdagurinn |
> > ( -. | `-----------------------------------'
> > | ) | (\_ _/)
> > (`-. '--.) (='.'=)
> > `. )----' (")_(")
> >
>
>
>
> --
> Björn Helgason, Verkfræðingur
> Fugl&Fiskur ehf, Þerneyjarsund 23, Box 127
> 801 Grímsnes ,t-póst: [EMAIL PROTECTED]
> Skype: gosiminn, gsm: +3546985532
> Landslags og skrúðgarðagerð, gröfuþjónusta
> http://groups.google.com/group/J-Programming
>
>
> Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans
>
> góður kennari getur stigið á tær án þess að glansinn fari af skónum
> /|_ .-----------------------------------.
> ,' .\ / | Með léttri lund verður |
> ,--' _,' | Dagurinn í dag |
> / / | Enn betri en gærdagurinn |
> ( -. | `-----------------------------------'
> | ) | (\_ _/)
> (`-. '--.) (='.'=)
> `. )----' (")_(")
>
--
Björn Helgason, Verkfræðingur
Fugl&Fiskur ehf, Þerneyjarsund 23, Box 127
801 Grímsnes ,t-póst: [EMAIL PROTECTED]
Skype: gosiminn, gsm: +3546985532
Landslags og skrúðgarðagerð, gröfuþjónusta
http://groups.google.com/group/J-Programming
Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans
góður kennari getur stigið á tær án þess að glansinn fari af skónum
/|_ .-----------------------------------.
,' .\ / | Með léttri lund verður |
,--' _,' | Dagurinn í dag |
/ / | Enn betri en gærdagurinn |
( -. | `-----------------------------------'
| ) | (\_ _/)
(`-. '--.) (='.'=)
`. )----' (")_(")
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
