Prefacing this with being a complete Clojure novice, my question is more about approach than the actual code required. Like many, I have a few tried and true examples that I like to work through in each language. In my case, I have a set of IIS log files that I want to generate usage statistics on. The hitch in my particular problem is that the log files may or may not have columns redefined within the file.
As an example #Software: Microsoft Internet Information Services 6.0 #Version: 1.0 #Date: 2011-05-02 17:42:15 #Software: Microsoft Internet Information Services 6.0 #Version: 1.0 #Date: 2011-05-02 17:42:15 #Fields: date time c-ip cs-username s-ip s-port cs-method cs-uri-stem cs-uri-query sc-status cs(User-Agent) 2011-05-02 17:42:15 172.22.255.255 - 172.30.255.255 80 GET /images/picture2.jpg - 200 Mozilla/4.0+(compatible;MSIE+5.5;+Windows+2000+Server) 2011-05-02 17:43:15 172.22.255.255 - 172.30.255.255 80 GET /images/picture1.jpg - 200 Mozilla/4.0+(compatible;MSIE+5.5;+Windows+2000+Server) . . <many more lines> . . #Same file, s-ip is now removed so ordinal positions are changed #Fields: date time c-ip cs-username s-port cs-method cs-uri-stem cs-uri-query sc-status cs(User-Agent) 2011-05-02 17:48:15 172.22.255.255 - 80 GET /images/picture1.jpg - 200 Mozilla/4.0+(compatible;MSIE+5.5;+Windows+2000+Server) 2011-05-02 17:49:15 172.22.255.255 - 80 GET /images/picture3.jpg - 200 Mozilla/4.0+(compatible;MSIE+5.5;+Windows+2000+Server) So with the above data, I am trying to get the count of log file hits from a given cs(User-Agent). In other languages, I would just read in the #Fields row and continue processing merrily given the most recent order I encountered moving through the file sequentially. With Clojure, the immutability of the fields is throwing a wrench for me. If anyone could give me a nudge in the right direction, I would appreciate it. Cliff -- 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 Note that posts from new members are moderated - please be patient with your first post. 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
