Oops, sorry Paul (In your favour I expect people can probably pronounce your surname! ;-)
Cheers Tom 2009/1/7 Paul Barry <pauljbar...@gmail.com> > No Problem Ayerst :) Just kidding, people call me Barry all the time, even > though my first name is Paul. That's the curse of having 2 first names I > guess. > > > On Wed, Jan 7, 2009 at 8:17 AM, Tom Ayerst <tom.aye...@gmail.com> wrote: > >> Thanks Barry, I now see what I did. >> >> I tried doseq early but it didn't print anything. I had: >> (with-open [r (reader "doc.txt")] >> (doseq [line (line-seq r)] println line)) >> >> so I wasn't evaluating the println. >> >> Cheers >> >> Tom >> >> 2009/1/7 Paul Barry <pauljbar...@gmail.com> >> >> Here's a little cleaner version using doseq: >>> (use 'clojure.contrib.duck-streams) >>> >>> (with-open [r (reader "doc.txt")] >>> (doseq [line (line-seq r)] (println line))) >>> >>> >>> On Wed, Jan 7, 2009 at 7:27 AM, Tom Ayerst <tom.aye...@gmail.com> wrote: >>> >>>> Thanks Brian. >>>> >>>> I finally nailed it with: >>>> >>>> (use '[clojure.contrib.duck-streams :only (reader)]) >>>> >>>> (with-open [r (reader "doc.txt")] >>>> (dorun >>>> (for [line (line-seq r)] (do (println line))))) >>>> >>>> Cheers >>>> >>>> Tom >>>> >>>> 2009/1/6 Brian Doyle <brianpdo...@gmail.com> >>>> >>>> >>>>> On Tue, Jan 6, 2009 at 4:47 PM, Tom Ayerst <tom.aye...@gmail.com>wrote: >>>>> >>>>>> Its not the println, nor getting a reader (duckstreams is fine, I can >>>>>> do that). Its the converting it to a seq and stepping through it printing >>>>>> each element (which should be a line). Its the loopy, steppy bit, just >>>>>> for a >>>>>> side effect; that I am messing up. >>>>>> >>>>>> Cheers >>>>>> >>>>>> Tom >>>>> >>>>> >>>>> I've done this type of thing and it worked great for me. >>>>> >>>>> (with-open [r (clojure.contrib.duck-streams/reader >>>>> "filename.txt")] >>>>> (doseq [line (line-seq r)] >>>>> ; do stuff with the line here >>>>> )) >>>>> >>>>> Basically you'll want to use the line-seq function. Hopefully that >>>>> helps. >>>>> >>>>> >>>>>> 2009/1/6 Mark Volkmann <r.mark.volkm...@gmail.com> >>>>>> >>>>>> >>>>>>> On Tue, Jan 6, 2009 at 5:26 PM, Tom Ayerst <tom.aye...@gmail.com> >>>>>>> wrote: >>>>>>> > Hi, >>>>>>> > >>>>>>> > How do I read and print a text file? I can read it, its the >>>>>>> printing that >>>>>>> > is the problem, I feel it should be obvious but I keep tripping >>>>>>> myself up. >>>>>>> > (The context is I need to extract data line by line, translate the >>>>>>> line >>>>>>> > format and save it for a legacy app) >>>>>>> >>>>>>> Do you just need to print to stdout? >>>>>>> The println function does that. It puts a space between the output of >>>>>>> each of its arguments. If you don't want that you can use the str >>>>>>> function to concatenate a bunch of string values together. >>>>>>> If you need something fancier, don't forget that you can access >>>>>>> everything in java.io from Clojure. >>>>>>> >>>>>>> -- >>>>>>> R. Mark Volkmann >>>>>>> Object Computing, Inc. >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>>> >>>> >>>> >>>> >>> >>> >>> >> >> >> > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
