impression_hp: first draft

impression/livret.py

@@ -0,0 +1,31 @@
+#!/bin/bash /usr/scripts/python.sh
+
+import sys
+import math
+import itertools
+
+def booklet_order(n):
+    page = (lambda k: None if k > n else k)
+
+    recto = 2*int(math.ceil(n/4.))
+    verso = recto + 2
+
+    while recto > 1:
+        yield page(verso)
+        yield page(recto-1)
+        yield page(recto)
+        yield page(verso-1)
+        recto -= 2
+        verso += 2
+
+def pdfjam_order(n):
+    return ",".join(itertools.imap(lambda k: str(k or '{}'), booklet_order(n)))
+
+if __name__ == '__main__':
+    try:
+        n = int(sys.argv[1])
+    except:
+        print "Veuillez entrer un nombre"
+        exit(1)
+
+    print pdfjam_order(n)