Make links clickable as well as @usernames

Turns:

    @reednj Yeah I was gonna work on that today http://foo.bar <b>foo</b>

into:

    <a href="/users/reednj/0">@reednj</a> Yeah I was gonna work on that
    today <a href="http://foo.bar">http://foo.bar</a>
    &lt;b&gt;foo&lt;/b&gt;

src/templates/tweets.mustache

@@ -7,7 +7,7 @@
 {{# tweets }}
   <div class="entries">
     <a href="/users/{{ username }}/0">@{{ username }}</a> - {{ time }}
-    <p>{{ tweet }}</p>
+    <p>{{{ tweet }}}</p>
     <small><a href="/tweet/{{ permalink }}">permalink</a></small>
   </div>
   <br />

src/tweet/.gitignore

@@ -0,0 +1 @@
+parse

src/tweet/parse.nim

@@ -0,0 +1,32 @@
+import strutils, ../twtxt
+from htmlgen import nil
+
+type
+  TweetData* = seq[string]
+
+proc `$`*(t: TweetData): string = t.join ""
+
+proc prettyfyTweet*(t: string): TweetData =
+  result = newSeq[string]()
+
+  var tweet = t.replace("<", "&lt;").replace(">", "&gt;")
+
+  for word in tokenize(tweet):
+    if word.isSep:
+      result.add word.token
+    else:
+      if word.token.startsWith "@":
+        let
+          username = word.token.substr 1
+          ahref = htmlgen.a(href="/users/" & username & "/0", word.token)
+        result.add ahref
+      elif word.token.startsWith "http":
+        let ahref = htmlgen.a(href=word.token, word.token)
+        result.add ahref
+      else:
+        result.add word.token
+
+when isMainModule:
+  const inp = "@reednj Yeah I was gonna work on that today http://foo.bar <b>foo</b>"
+
+  echo inp.prettyfyTweet

src/twtxtlist.nim

@@ -1,5 +1,5 @@
 import asyncdispatch, db_sqlite, httpclient, jester, moustachu, os, shorturl,
-  strutils, tables, templates/all, times, twtxt, typetraits
+  strutils, tables, templates/all, times, tweet/parse, twtxt, typetraits
 
 let
   db = open("data/twtxt.db", nil, nil, nil)
@@ -142,7 +142,7 @@ routes:
         c["permalink"] = tweet[0].parseInt().encodeURLSimple()
         c["username"] = tweet[1]
         c["time"] = time
-        c["tweet"] = tweet[3]
+        c["tweet"] = $tweet[3].prettyfyTweet()
 
         tweetList.add c
 
@@ -177,7 +177,7 @@ routes:
         c["permalink"] = tweet[0].parseInt().encodeURLSimple()
         c["username"] = tweet[1]
         c["time"] = time
-        c["tweet"] = tweet[3]
+        c["tweet"] = $tweet[3].prettyfyTweet()
 
         tweetList.add c
 
@@ -213,7 +213,7 @@ routes:
         c["permalink"] = tweet[0].parseInt().encodeURLSimple()
         c["username"] = tweet[1]
         c["time"] = time
-        c["tweet"] = tweet[3]
+        c["tweet"] = $tweet[3].prettyfyTweet()
 
         tweetList.add c