The library was originally based on Clargon (a library I wrote) which had the interface you are describing (optional and required functions). Various changes were made after getting feedback on the clojure-dev mailing list, which you can read about here if you're interested:
https://groups.google.com/d/topic/clojure-dev/KGvzndhX5vk/discussion Hopefully the project documentation is clear about its use: https://github.com/clojure/tools.cli Hope that helps, Gaz On Fri, Aug 24, 2012 at 2:52 PM, octopusgrabbus <octopusgrab...@gmail.com> wrote: > Given the following code > > (defn parse-opts > "Using the newer cli library, parses command line args." > [args] > (cli args > (optional ["--in-file-name" ".csv input file" :default > "resultset.csv"] identity) > (optional ["--out-file-name" ".csv pipe delimited output file" > :default "accumail_out.unl"] ))) > > What is the origin of optional, and why do tools.cli examples that I can > find now leave out (optional ... ? > > Would current examples still use identity? > > Here is why I'm asking: > > http://stackoverflow.com/questions/12112403/how-do-i-mix-non-optional-cli-arguments-with-optional-ones > > Thanks for any pointers or help. > > -- > 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 -- 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
