Use argparse instead of parseopt

etherpad2latex.nimble

@@ -13,3 +13,4 @@ bin           = @["etherpad2latex"]
 
 requires "nim >= 0.20.0"
 requires "jester >= 0.4.1"
+requires "argparse >= 0.7.1"

src/etherpad2latex.nim

@@ -2,6 +2,7 @@ import asynchttpserver, asyncdispatch, httpclient
 import os, osproc, strutils, parseopt
 
 import jester
+import argparse
 
 proc getContent(pad:string, etherpadUrl:string):string =
   var client = newHTTPClient()
@@ -9,16 +10,18 @@ proc getContent(pad:string, etherpadUrl:string):string =
 
 
 when isMainModule:
-  var
-    p = initOptParser()
-    port = 8080
-    etherpadUrl = "http://localhost:9001/"
+  var p = newParser("etherpad2latex"):
+    help("Compiles etherpad pads to pdf")
+    option("-p", "--port", help="Port for the server", default="8080")
+    option("-a", "--etherpad-address", help="The address of the etherpad", default="http://localhost:9001")
+
+  let opts = p.parse()
 
   router main:
     get "/@pad":
       let
         pad = @"pad"
-        content = getContent(pad, etherpadUrl)
+        content = getContent(pad, opts.etherpadaddress)
         texFile = open(pad & ".tex", fmWrite)
   
       texFile.write(content)
@@ -30,20 +33,6 @@ when isMainModule:
       else:
         resp output
 
-  # Parse command-line args
-  while true:
-    p.next()
-    case p.kind
-    of cmdEnd: break
-    of cmdShortOption, cmdLongOption:
-      case p.key
-      of "p", "port":
-        port = p.val.parseInt
-      of "a", "etherpad-address":
-        etherpadUrl = p.val
-      else: discard
-    of cmdArgument: continue
-
-  let s = newSettings(port=Port(port))
+  let s = newSettings(port=Port(opts.port.parseInt))
   var j = initJester(main, settings=s)
   j.serve()