[REBOL] Re: Parsing for fun and profit
From: learned:talentsinc at: 24-Sep-2001 21:12
You totally lost me on your last bit of code...I'm digging thru it now...to
simplify, let's take a block that only has the last section and say we want
to get it into a 2-dimensial array. So, for example:
blob:
123 abd 123456788 jk234234f 12345
234 kjl 124kjlkj werwerr35 234jk
253 klj klj343jk klwj32543 jkljl
.
.
.
853 lk3 2342342 23424lk kjlkjlkj
So, we have a blob of n rows, each with 5 elements inside of it. The goal
is to put it into an array such as:
blobarray: array [x 5]
Sorry I'm being dense.
Gary
--On Tuesday, September 25, 2001 12:37 AM +0200 Ladislav Mecir
<[lmecir--mbox--vol--cz]> wrote:
> OK,
>
> how about this:
>
> preparsed: parse data none
> parse preparsed [
> thru "REV:" copy vRev to "Processor"
> thru "Board" copy vBoard to "Rev"
> thru "#" (vSerial: copy []) 5 string!
> any [
> copy vs 5 string! (append/only vSerial vs)
> ]
> ]
>
> Cheers
> Ladislav
>
> ----- Original Message -----
> From: G. Edw. Learned <[learned--talentsinc--net]>
> To: <[rebol-list--rebol--com]>
> Sent: Monday, September 24, 2001 11:31 PM
> Subject: [REBOL] Re: Parsing for fun and profit
>
>> Ok, I'll buy that, how about in the final section of the file, where I
> have
>> a 1 to n (where N < 100) row table of 5 values each.
>>
>> 123 234 345 46 56469u0
>> 111 234 234 25 8798jh9
>>
>> I this case, I'd love to end up with a two dimensional array
>> of [n 5], but I haven't figured out how to swing that one yet.
>> Seems like it should be easy, but I have my brain wrapped around
>> my axle.
>>
>> --On Monday, September 24, 2001 11:17 PM +0200 Ladislav Mecir
>> <[lmecir--mbox--vol--cz]> wrote:
>>
>> > Hi Gary,
>> >
>> > I think, that the "double parsing" may be convenient in some cases. If
> you
>> > really know, that the whitespace characters serve only as "delimiters"
>> > through the whole text, then there is a possibility to "swap" the order
> of
>> > operation and write the parse rules more efficiently like this:
>> >
>> > preparsed: parse data none
>> > parse preparsed [
>> > thru "REV:" copy vRev to "Processor"
>> > thru "Board" copy vBoard to "Rev"
>> > ]
>> >
>> > etc. In the case the whitespace could have a different "meaning"
>> > somewhere, I would suggest to use a different approach, i.e. to use
>> > only single parse.
>> >
>> > Regards
>> > Ladislav
>> >
>> > ----- Original Message -----
>> > From: G. Edw. Learned <[learned--talentsinc--net]>
>> > To: <[rebol-list--rebol--com]>
>> > Sent: Monday, September 24, 2001 8:43 PM
>> > Subject: [REBOL] Parsing for fun and profit
>> >
>> >
>> >> I've been working with the parsing routines for a little utility
> project
>> >> I've inherited, and while I'm coming up with some brute force
> solutions,
>> >> I'd love to hear any suggestions for streamlineing the code. The data
>> >> I am inputing has assorted formats embedded within the text files I
>> >> have
> to
>> >> read. I've included an example below:
>> >>
>> >> ---
>> >> SYS SER #: 123 VER: 4 REV: 7a
>> >> Processor
>> >> SER: 3.2
>> >>
>> >> Slot 1 Slot 2 Slot 3 Slot 4
>> >> Board 123 123 123 123
>> >> Rev 2.3 2.3 2.3 3.4
>> >>
>> >> Drive Information:
>> >> Slot Manuf Type Rev Serial #
>> >> ---- -------- ---------------- ---- ------------
>> >> A0 MYXPTL XXX786768XX 1.2 8687163816SA
>> >> A1 MYXPTL XXX786768XX 1.2 8687163817SA
>> >>
>> >> What I have been doing is double parsing to get the information. For
>> >> example, to get the REV off the first line, the parse is:
>> >>
>> >> thru "REV:" copy vREV to "Processor"
>> >> vREV: parse vREV none
>> >>
>> >> the purpose of the second parse being to get rid of whitespace.
>> >>
>> >> In the case of the table information, for example, Board, I am doing
> the
>> >> following:
>> >>
>> >> thru "Board" copy vBoard to "Rev"
>> >> vBoard: parce vBoard none
>> >>
>> >> the second parse in this case serves to return each 'slot' as a
>> >> seperatly addressable data block (i.e. vBoard/1).
>> >>
>> >> I haven't started parsing the last section yet, which would have
>> >> 5 pieces of information for each drive found.
>> >>
>> >> Are there easier ways to get to where I'm going, or am I on the
>> >> right track in trying to "think REBOL"?
>> >>
>> >> Thanks
>> >> Gary
>> >>
>> >> ---
>> >> G. Edw. Learned - [learned--talentsinc--net]
>> >> (Never apply a Star Trek Solution to a Babylon Five Problem)
>> >> --
>
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---
G. Edw. Learned ( [learned--talentsinc--net] )
(Never apply a Star Trek Solution to a Babylon 5 Problem)
