basic pagination working

microblog.py

@@ -1,7 +1,7 @@
 
 import sys
-
 import subprocess
+import os
 
 def make_post(num, timestamp, email, msg):
     # used <a class> for name and email but it's not actually needed.
@@ -127,6 +127,48 @@ def make_tagcloud(d):
         output.append(fmt % (key, d[key]))
     return output
 
+class Paginator:
+    def __init__(self, x, y, loc="./pages"):
+        self.TOTAL_POSTS = x
+        self.PPP         = y # posts per page
+        self.TOTAL_PAGES = int(x/y)
+        if self.TOTAL_PAGES > 0:
+            self.SUBDIR = loc
+            if not os.path.exists(loc):
+                os.makedirs(loc)
+        pass
+
+    def toc(self, n=None, page=None): #style 1
+        if self.TOTAL_PAGES < 1 or (n == None and page == None):
+            return "[no pages]"
+        # For page 'n' do not create an anchor tag
+        fmt = "<a href=\"%s/%s\">[%i]</a>" #(self.subdir, page, page number)
+        anchors = []
+        for i in range(self.TOTAL_PAGES):
+            if i != n:
+                anchors.append(fmt % (self.SUBDIR, page, i))
+            else:
+                anchors.append("<b>[%i]</b>" % i)
+        return "\n".join(anchors)
+
+    def singlepage(self, template, tagcloud, timeline):
+        tc = "\n".join(tagcloud)
+        tl = "\n\n".join(timeline)
+        return (template % (self.TOTAL_POSTS, tc, tl))
+
+    def paginate(self, template, tagcloud, timeline):
+        outfile = self.SUBDIR + "/%i.html"
+        timeline.reverse() # reorder from oldest to newest
+        for i in range(self.TOTAL_PAGES):
+            with open(outfile % i, 'w') as fout:
+                prev = self.PPP * i
+                curr = self.PPP * (i+1)
+                sliced = timeline[prev:curr]
+                sliced.reverse()
+                fout.write(
+                    self.singlepage(template, tagcloud, sliced))
+        pass
+
 if __name__ == "__main__":
     def get_args():
         argc = len(sys.argv)
@@ -147,7 +189,18 @@ if __name__ == "__main__":
         tl, tc = make_timeline(content, email)
         tcl    = make_tagcloud(tc)
         count  = len(tl)
+        html = ""
         with open(template,'r') as f:
             html = f.read()
-            print(html % (count, "\n".join(tcl), "\n\n".join(tl)))
+            #print(html % (count, "\n".join(tcl), "\n\n".join(tl)))
+        count = len(tl)
+        posts_per_page = 5
+        pagectrl = Paginator(count, posts_per_page)
+        if count <= posts_per_page:
+            print(pagectrl.paginate(html, tcl, timeline))
+        else:
+            latest   = tl[:posts_per_page]
+            print(pagectrl.singlepage(html, tcl, latest))
+            pagectrl.paginate(html, tcl, tl)
+
     main()