Hi all,
I feel like a bloody noob for having to ask this (I've been coding C++
for years but Clojure, Lisp and Java are all new territory for me) but
I'm missing something obvious and basic here and I'm still struggling
with the syntax a bit.
I'm trying to learn clojure by simply translating an example app from
the Apache POI project. I'm attempting to create a dummy Excel
spreadsheet. The code below is cut down a bit from the code I'm
trying to run; I'm just trying to demonstrate the issue that I'm
having.
This code compiles just fine but when I run it, I see all of the
println message except "In init-sheet". So it looks like init-sheet
is never getting called. Would someone please give me a little
guidance as to why the function is not getting invoked? Is this
something to do with lazy evaluation?
****
;; calendardemo
;; 29 January 2009
;; Onorio Catenacci
;Clojure version of CalendarDemo app originally done by Yegor Kozlov
;Define namespace for app and include needed libraries
(ns name.catenacci.calendardemo
(:import (org.apache.poi.xssf.usermodel))
(:import (org.apache.poi.ss.util CellRangeAddress))
(:import (org.apache.poi.ss.usermodel))
(:import (org.apache.poi.ss.usermodel Font))
(:import (org.apache.poi.hssf.usermodel HSSFWorkbook))
(:import (java.util Calendar))
(:import (java.io FileOutputStream))
)
(def debugging true)
;Constant for days of the week
(def days
["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"])
(if debugging (println days))
;Constant for months
(def months
["January","February","March","April","May","June","July","August","September","October","November","December"])
(if debugging (println months))
;hold the main calendar instance
(def cal (. Calendar getInstance))
(if debugging (println cal))
;now create a workbook instance
(def wb (HSSFWorkbook.))
(if debugging (println wb))
;initialize the various worksheets
(defn init-sheet
#^{:doc "Initialize a worksheet with a particular month"}
([current-month]
(if debugging (println "In init-sheet"))
)
)
;For my own reference--this is an example of a Clojure sequence
comprehension
(for [current-month [months]]
(let [current-sheet (init-sheet current-month)])
)
****
--
Onorio Catenacci III
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