Re: [Factor-talk] Dedupe by Slot

Maybe something like this: : duplicates-by ( seq quot: ( elt -- key ) -- seq' ) HS{ } clone '[ @ _ ?adjoin ] filter ; inline Then you can use it: IN: scratchpad { 1 2 3 4 5 } [ 2/ ] duplicates-by { 1 2 4 } IN: scratchpad sequence-of-tuples [ hash>> ] duplicates-by It would

[Factor-talk] Dedupe by Slot

Hello, all! I have an interesting little task for you today. Let's say you have a sequence of tuples, and you want to remove all tuples with duplicate ids, so that in the new sequence there is only one tuple with each id. Here's my solution: TYPED: dedupe-by-hash ( seq: sequence --

Re: [Factor-talk] Dedupe by Slot

2016-11-18 15:36 GMT+01:00 Alexander Ilin : > Hello, all! > > I have an interesting little task for you today. > > Let's say you have a sequence of tuples, and you want to remove all tuples > with duplicate ids, so that in the new sequence there is only one tuple with >

Re: [Factor-talk] Dedupe by Slot

John, thank you very much! : )Really helpful stuff! 18.11.2016, 18:13, "John Benediktsson" :P.S., Hah I should have called it unique-by, it's too early in the morning! P.P.S., I committed this word into sets.extras, with one small change besides the name which is to size the

Re: [Factor-talk] Dedupe by Slot

The *.extras vocabularies are places to incubate new words. We haven't done the best job of documenting them and promoting to the core/basis vocabularies. > On Nov 18, 2016, at 8:21 AM, Alexander Ilin wrote: > > Hello, Björn! > > 18.11.2016, 18:25, "Björn Lindqvist"

Re: [Factor-talk] Dedupe by Slot

Hello, Björn! 18.11.2016, 18:25, "Björn Lindqvist" : > USE: sequences.extras > [ id>> ] sort-with [ id>> ] group-by [ second first ] map I could not find `group-by` using the Browser. Grepping the source tree, it turned up in `grouping.extras`. > USE:

Re: [Factor-talk] Web scraping

I think the reason it is parsed into a vector of start and end tags is because it is much simpler when not all of the html data is available. Or you are dealing with broken html code. There is no real XPath support in any Factor vocab as far as I'm aware of. I once wrote a half-completed binding

[Factor-talk] Web scraping

Hello again :) I'm looking at implemented options of scraping web pages? I've hit into this http://re-factor.blogspot.nl/2014/04/scraping-re-factor.html but that's a json output and I'm looking at pages that only have html. I see there's parse-html and scrape-html to parse a url into a