Asp Forum - construct AoA with REXML XPath?

Chris McMahon

3/15/2006 6:59:00 PM

Hi...

say I have a document

<plan xsi:type="ns0:plan">
<id>123</id>
<status>ACTIVE</status>
<jellyBean>RED</jellyBean>
<foo>BAR</foo>
</plan>
<plan xsi:type="ns0:plan">
<id>456</id>
<status>BOGUS</status>
<jellyBean>BLUE</jellyBean>
<foo>BAZ</foo>
</plan>

I know I can do
ids = doc.elements.to_a( "//plan/id")
jellybeans = doc.elements.to_a( "//plan/jellyBean")

but is there some way to do something like

idsAndJellyBeans = doc.elements.to_a( "//plan/id" "//plan/jellyBean")

and get

[[123, "RED"],[456,"BLUE"]]?

Thanks...

26 Answers

gordon

3/15/2006 9:42:00 PM

You could use Array#zip

ids = doc.elements.to_a( "//plan/id/").map{|i| i.text}
=> ["123", "456"]

jellybeans = doc.elements.to_a( "//plan/jellyBean").map {|i| i.text}
=> ["RED", "BLUE"]

idsAndJellyBeans = ids.zip(jellybeans)
=> [["123", "RED"], ["456", "BLUE"]]

Chris McMahon

3/15/2006 10:22:00 PM

Yes, but I wonder if there is a rock-solid guarantee that each array
that is an element of idsAndJellyBeans is in fact from the same "plan"
record.

Empirical research suggests that they are, but I'm nervous. That's why
I wonder if there is some sort of pure-REXML trick that would extract
multiple elements from within a single record, so that I could always
be sure that the id and the jellyBean in each individual array had FER
SHURE come from the same "plan" record.

William James

3/16/2006 4:51:00 AM

Chris McMahon wrote:
> Hi...
>
> say I have a document
>
> <plan xsi:type="ns0:plan">
> <id>123</id>
> <status>ACTIVE</status>
> <jellyBean>RED</jellyBean>
> <foo>BAR</foo>
> </plan>
> <plan xsi:type="ns0:plan">
> <id>456</id>
> <status>BOGUS</status>
> <jellyBean>BLUE</jellyBean>
> <foo>BAZ</foo>
> </plan>
>
> I know I can do
> ids = doc.elements.to_a( "//plan/id")
> jellybeans = doc.elements.to_a( "//plan/jellyBean")
>
> but is there some way to do something like
>
> idsAndJellyBeans = doc.elements.to_a( "//plan/id" "//plan/jellyBean")
>
> and get
>
> [[123, "RED"],[456,"BLUE"]]?
>
> Thanks...

Using plain Ruby:

class Array; alias atr first; alias txt last end
class String
def xtag(str)
result = []
re = %r{ < #{str} (?: \s+ ( (?> [^>"/]* (?> "[^"]*" )? )* ) )? }xi
scan( %r{ #{re} / > | #{re} > ( .*? ) </ #{str} >
}mix ) { |unpaired, attr, data| h = { }
( unpaired || attr || "" ).
scan( %r{ ( \w+ ) \s* = \s* (?: " ( [^"]* ) " | ( \S+ ) )
}mx ) { |k,v,v2|
h[k.downcase] = (v || v2) }
block_given? ? ( yield [ h, data ] ) : result << [ h, data ]
}
result
end
end

p DATA.read.xtag('plan').map{|attr,text|
[ text.xtag('id').first.txt,
text.xtag('jellyBean').first.txt
]
}

__END__
<plan xsi:type="ns0:plan">
<id>123</id>
<status>ACTIVE</status>
<jellyBean>RED</jellyBean>
<foo>BAR</foo>
</plan>
<plan xsi:type="ns0:plan">
<id>456</id>
<status>BOGUS</status>
<jellyBean>BLUE</jellyBean>
<foo>BAZ</foo>
</plan>

William Clark

12/17/2010 2:15:00 PM

In article <e0olg6p28phjh9tucnnqaaqqf7u9jjtuaj@4ax.com>,
Fred J. McCall <fjmccall@gmail.com> wrote:

> William Clark <wclark2@colnospamumbus.rr.com> wrote:
>
> >In article <4gdkg6tssufe1p4u1ieba1o1mrte6bg5h4@4ax.com>,
> > Fred J. McCall <fjmccall@gmail.com> wrote:
> >
> >> William Clark <wclark2@colnospamumbus.rr.com> wrote:
> >>
> >> >In article <zNidnWmZIftMt5fQnZ2dnUVZ_t-dnZ2d@giganews.com>,
> >> > "conwaycaine" <conwaycaine@bellsouth.net> wrote:
> >> >
> >> >> "William Clark" <wclark2@colnospamumbus.rr.com> wrote in message
> >> >> news:wclark2-75FE1F.16041615122010@charm.magnus.acs.ohio-state.edu...
> >> >> > "conwaycaine" <conwaycaine@bellsouth.net> wrote:
> >> >> >> "Westprog" <westprog@hottmail.com> wrote in message
> >> >> >> >
> >> >> >> > It's not that the British or Irish tests are that good - it's that
> >> >> >> > most
> >> >> >> > US
> >> >> >> > tests appear to be barely driving tests at all. They test the
> >> >> >> > ability
> >> >> >> > to
> >> >> >> > start the car and manouevre it in a circle.
> >> >> >>
> >> >> >> A bit more to the driving and written tests than that.
> >> >> >> Most sober Americans do very well when it comes to safety.
> >> >> >> Those who have taken to the drink cause most of our problems.
> >> >> >
> >> >> > I am scared of drunk drivers - we all should be. What is more
> >> >> > worrying,
> >> >> > though, is that I am almost equally scared of sober ones in the US.
> >> >> > Too
> >> >> > many of them are just that incompetent, and ignorant of their own
> >> >> > short
> >> >> > comings..
> >> >>
> >> >> Come now, Mister Clark, methinks you embellish a bit.
> >> >> But I've a solution to your problem.
> >> >> If American drivers scare the bejayus out of you, stay in Ireland.
> >> >> Now there's a happy thought.....................
> >> >
> >> >Why would I "stay in Ireland"? I have the driving skills and caution
> >> >necessary to avoid the idiots. You almost certainly do not.
> >> >
> >>
> >> And yet you're the one out there afraid of things. Don't you find
> >> that interesting? I know I do...
> >
> >No, not really "afraid", just sufficiently aware of their lack of
> >driving skills to want to give them a very wide berth.
> >
>
> Gee, that must make things like driving down the street really tough
> for you...

I suppose you go down the freeway at 70, sitting five feet of the trunk
of the car in front of you?

Welcome to the US drivers' club.

William Clark

12/17/2010 2:16:00 PM

In article <lrnlg6prnuc4k3logsk0brj0vj95djtqe6@4ax.com>,
Fred J. McCall <fjmccall@gmail.com> wrote:

> William Clark <wclark2@colnospamumbus.rr.com> wrote:
>
> >In article <KKKdneASH4ks25fQnZ2dnUVZ_vmdnZ2d@giganews.com>,
> > "conwaycaine" <conwaycaine@bellsouth.net> wrote:
> >
> >> "William Clark" <wclark2@colnospamumbus.rr.com> wrote in message
> >> news:wclark2-42BA4D.10332316122010@charm.magnus.acs.ohio-state.edu...
> >> > "conwaycaine" <conwaycaine@bellsouth.net> wrote:
> >> >
> >>
> >> >> Come now, Mister Clark, methinks you embellish a bit.
> >> >> But I've a solution to your problem.
> >> >> If American drivers scare the bejayus out of you, stay in Ireland.
> >> >> Now there's a happy thought.....................
> >> >
> >> > Why would I "stay in Ireland"? I have the driving skills and caution
> >> > necessary to avoid the idiots. You almost certainly do not.
> >>
> >> So far I've successfully avoided the idiots.
> >> Except for a bit of a problem backing up, I am an exemplary driver.
> >> (They are very quick around here to lift the license of us ancient ones if
> >> we prove to be somewhat remiss in our driving habits.)
> >
> >"Backing up". Then I assume you never had to learn to reverse round a
> >corner in order to pass your "driving test"? Tut, tut.
> >
>
> Why would anyone want to test for that? I mean, that sounds like a
> stupid thing to do, so why practice to pass a 'test' over it?

Because, by Conway's own admission, he can't do it? I would pay the
price of admission to see you try to get your car into a small parking
space. It would be a good laugh.
>
> Besides which, how hard can it be? I mean, getting in and out of
> parallel parking is SO hard for you Brits.

Sounds like it's too hard for your date.

William Clark

12/17/2010 2:17:00 PM

In article <83olg69l6c5dg2cueg7k88r8n2o4v0ai0l@4ax.com>,
Fred J. McCall <fjmccall@gmail.com> wrote:

> William Clark <wclark2@colnospamumbus.rr.com> wrote:
>
> >In article <6ddkg6lukb999vrotts35a7gh0l7ma94i5@4ax.com>,
> > Fred J. McCall <fjmccall@gmail.com> wrote:
> >
> >> William Clark <wclark2@colnospamumbus.rr.com> wrote:
> >>
> >> >In article <638kg6plfgsdmm63b1ekicctskds43forh@4ax.com>,
> >> > Fred J. McCall <fjmccall@gmail.com> wrote:
> >> >
> >> >> William Clark <wclark2@colnospamumbus.rr.com> wrote:
> >> >>
> >> >> >In article <ut1jg61it5b3lftddal2sh97t0tr79cavi@4ax.com>,
> >> >> > Fred J. McCall <fjmccall@gmail.com> wrote:
> >> >> >
> >> >> >> William Clark <wclark2@colnospamumbus.rr.com> wrote:
> >> >> >>
> >> >> >> >In article <3ISdndkCWedjQZXQnZ2dnUVZ_tKdnZ2d@giganews.com>,
> >> >> >> > "conwaycaine" <conwaycaine@bellsouth.net> wrote:
> >> >> >> >
> >> >> >> >> "Westprog" <westprog@hottmail.com> wrote in message
> >> >> >> >> news:ieadcj$fh$1@news.datemas.de...
> >> >> >> >> > William Clark wrote:
> >> >> >> >> >> "conwaycaine" <conwaycaine@bellsouth.net> wrote:
> >> >> >> >> >
> >> >> >> >> > It's not that the British or Irish tests are that good - it's
> >> >> >> >> > that
> >> >> >> >> > most
> >> >> >> >> > US
> >> >> >> >> > tests appear to be barely driving tests at all. They test the
> >> >> >> >> > ability
> >> >> >> >> > to
> >> >> >> >> > start the car and manouevre it in a circle.
> >> >> >> >>
> >> >> >> >> A bit more to the driving and written tests than that.
> >> >> >> >> Most sober Americans do very well when it comes to safety.
> >> >> >> >> Those who have taken to the drink cause most of our problems.
> >> >> >> >
> >> >> >> >I am scared of drunk drivers - we all should be. What is more
> >> >> >> >worrying,
> >> >> >> >though, is that I am almost equally scared of sober ones in the US.
> >> >> >> >Too
> >> >> >> >many of them are just that incompetent, and ignorant of their own
> >> >> >> >short
> >> >> >> >comings..
> >> >> >> >
> >> >> >>
> >> >> >> Feel free to go back wherever it is you're more comfortable and stay
> >> >> >> there...
> >> >> >
> >> >> >That would be anywhere that a cocky little git like you isn't.
> >> >> >
> >> >>
> >> >> So why are you still here, again?
> >> >
> >> >Because you are nothing more than hot air on the Usenet.
> >> >
> >>
> >> And you have an affinity for hot air, do you?
> >>
> >> I can see why, since it seems to be all there is to you. However, the
> >> fact that you think we have something in common (we don't) doesn't
> >> make you my friend...
> >
> >No, it is you and Conway that "have something in common", But don't
> >worry, the secret you two share is safe with me.
> >
>
> Jealousy is *such* an ugly emotion, Willie...

No, thank you, I don't play on that side of the fence. But I am broad
minded, so each to his own.

Fred J. McCall

12/17/2010 3:49:00 PM

William Clark <wclark2@colnospamumbus.rr.com> wrote:

>In article <e0olg6p28phjh9tucnnqaaqqf7u9jjtuaj@4ax.com>,
> Fred J. McCall <fjmccall@gmail.com> wrote:
>
>> William Clark <wclark2@colnospamumbus.rr.com> wrote:
>>
>> >In article <4gdkg6tssufe1p4u1ieba1o1mrte6bg5h4@4ax.com>,
>> > Fred J. McCall <fjmccall@gmail.com> wrote:
>> >
>> >> William Clark <wclark2@colnospamumbus.rr.com> wrote:
>> >>
>> >> >In article <zNidnWmZIftMt5fQnZ2dnUVZ_t-dnZ2d@giganews.com>,
>> >> > "conwaycaine" <conwaycaine@bellsouth.net> wrote:
>> >> >
>> >> >> "William Clark" <wclark2@colnospamumbus.rr.com> wrote in message
>> >> >> news:wclark2-75FE1F.16041615122010@charm.magnus.acs.ohio-state.edu...
>> >> >> > "conwaycaine" <conwaycaine@bellsouth.net> wrote:
>> >> >> >> "Westprog" <westprog@hottmail.com> wrote in message
>> >> >> >> >
>> >> >> >> > It's not that the British or Irish tests are that good - it's that
>> >> >> >> > most
>> >> >> >> > US
>> >> >> >> > tests appear to be barely driving tests at all. They test the
>> >> >> >> > ability
>> >> >> >> > to
>> >> >> >> > start the car and manouevre it in a circle.
>> >> >> >>
>> >> >> >> A bit more to the driving and written tests than that.
>> >> >> >> Most sober Americans do very well when it comes to safety.
>> >> >> >> Those who have taken to the drink cause most of our problems.
>> >> >> >
>> >> >> > I am scared of drunk drivers - we all should be. What is more
>> >> >> > worrying,
>> >> >> > though, is that I am almost equally scared of sober ones in the US.
>> >> >> > Too
>> >> >> > many of them are just that incompetent, and ignorant of their own
>> >> >> > short
>> >> >> > comings..
>> >> >>
>> >> >> Come now, Mister Clark, methinks you embellish a bit.
>> >> >> But I've a solution to your problem.
>> >> >> If American drivers scare the bejayus out of you, stay in Ireland.
>> >> >> Now there's a happy thought.....................
>> >> >
>> >> >Why would I "stay in Ireland"? I have the driving skills and caution
>> >> >necessary to avoid the idiots. You almost certainly do not.
>> >> >
>> >>
>> >> And yet you're the one out there afraid of things. Don't you find
>> >> that interesting? I know I do...
>> >
>> >No, not really "afraid", just sufficiently aware of their lack of
>> >driving skills to want to give them a very wide berth.
>> >
>>
>> Gee, that must make things like driving down the street really tough
>> for you...
>>
>
>I suppose you go down the freeway at 70, sitting five feet of the trunk
>of the car in front of you?
>
>Welcome to the US drivers' club.
>

I know thought is hard for you, but lets give it a try, shall we?

YOU: "give them a very wide birth"

Now, how wide is the road? For you to "give them a very wide birth" I
assume you must be pulling up onto the sidewalks or something every
time a car comes down the street the other way...

--
"Some people get lost in thought because it's such unfamiliar
territory."
--G. Behn

Fred J. McCall

12/17/2010 3:51:00 PM

William Clark <wclark2@colnospamumbus.rr.com> wrote:

>In article <lrnlg6prnuc4k3logsk0brj0vj95djtqe6@4ax.com>,
> Fred J. McCall <fjmccall@gmail.com> wrote:
>
>> William Clark <wclark2@colnospamumbus.rr.com> wrote:
>>
>> >In article <KKKdneASH4ks25fQnZ2dnUVZ_vmdnZ2d@giganews.com>,
>> > "conwaycaine" <conwaycaine@bellsouth.net> wrote:
>> >
>> >> "William Clark" <wclark2@colnospamumbus.rr.com> wrote in message
>> >> news:wclark2-42BA4D.10332316122010@charm.magnus.acs.ohio-state.edu...
>> >> > "conwaycaine" <conwaycaine@bellsouth.net> wrote:
>> >> >
>> >>
>> >> >> Come now, Mister Clark, methinks you embellish a bit.
>> >> >> But I've a solution to your problem.
>> >> >> If American drivers scare the bejayus out of you, stay in Ireland.
>> >> >> Now there's a happy thought.....................
>> >> >
>> >> > Why would I "stay in Ireland"? I have the driving skills and caution
>> >> > necessary to avoid the idiots. You almost certainly do not.
>> >>
>> >> So far I've successfully avoided the idiots.
>> >> Except for a bit of a problem backing up, I am an exemplary driver.
>> >> (They are very quick around here to lift the license of us ancient ones if
>> >> we prove to be somewhat remiss in our driving habits.)
>> >
>> >"Backing up". Then I assume you never had to learn to reverse round a
>> >corner in order to pass your "driving test"? Tut, tut.
>> >
>>
>> Why would anyone want to test for that? I mean, that sounds like a
>> stupid thing to do, so why practice to pass a 'test' over it?
>
>Because, by Conway's own admission, he can't do it? I would pay the
>price of admission to see you try to get your car into a small parking
>space. It would be a good laugh.
>

What's that got to do with "reverse round a corner"?

>
>>
>> Besides which, how hard can it be? I mean, getting in and out of
>> parallel parking is SO hard for you Brits.
>>
>
>Sounds like it's too hard for your date.
>

No, she does it fine, too.

--
"Oooo, scary! Y'know, there are a lot scarier things
in the world than you ... and I'm one of them."

-- Buffy the vampire

conwaycaine

12/17/2010 6:41:00 PM

"William Clark" <wclark2@colnospamumbus.rr.com> wrote in message
news:wclark2-7FECD0.16410116122010@charm.magnus.acs.ohio-state.edu...
> In article <KKKdneASH4ks25fQnZ2dnUVZ_vmdnZ2d@giganews.com>,
> "conwaycaine" <conwaycaine@bellsouth.net> wrote:
>
>> "William Clark" <wclark2@colnospamumbus.rr.com> wrote in message
>> news:wclark2-42BA4D.10332316122010@charm.magnus.acs.ohio-state.edu...
>> > "conwaycaine" <conwaycaine@bellsouth.net> wrote:
>> >
>>
>> >> Come now, Mister Clark, methinks you embellish a bit.
>> >> But I've a solution to your problem.
>> >> If American drivers scare the bejayus out of you, stay in Ireland.
>> >> Now there's a happy thought.....................
>> >
>> > Why would I "stay in Ireland"? I have the driving skills and caution
>> > necessary to avoid the idiots. You almost certainly do not.
>>
>> So far I've successfully avoided the idiots.
>> Except for a bit of a problem backing up, I am an exemplary driver.
>> (They are very quick around here to lift the license of us ancient ones
>> if
>> we prove to be somewhat remiss in our driving habits.)
>
> "Backing up". Then I assume you never had to learn to reverse round a
> corner in order to pass your "driving test"? Tut, tut.

No, I haven't.
The local law much prefers we go round corners front first rather than rear
first.
Is the reverse thingy one of those quaint Brit driving habits?

conwaycaine

12/17/2010 6:44:00 PM

"William Clark" <wclark2@colnospamumbus.rr.com> wrote in message
news:wclark2-318623.09155817122010@charm.magnus.acs.ohio-state.edu...
> Fred J. McCall <fjmccall@gmail.com> wrote:
>>
>> Why would anyone want to test for that? I mean, that sounds like a
>> stupid thing to do, so why practice to pass a 'test' over it?
>
> Because, by Conway's own admission, he can't do it?

Bill (May I call you "Bill"?) is the world a literal place for you?

>I would pay the
> price of admission to see you try to get your car into a small parking
> space. It would be a good laugh.

Why would you assume Fred can't get into a small parking space.
And why must Brits back into a parking place?
Front first is so much easier.

comp.lang.ruby

construct AoA with REXML XPath?

Chris McMahon

gordon

Chris McMahon

William James

William Clark

William Clark

William Clark

Fred J. McCall

Fred J. McCall

conwaycaine

conwaycaine

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