fracas: code to generate HTML treebank

examples/fracas/ToHTML.hs

@@ -0,0 +1,43 @@
+import Data.Char(isSpace)
+
+main = interact (unlines.wrap "dl".concatMap conv.paras.lines)
+
+conv (('@':n):ls) = (tag_class aname "dt"++(fmtnum n++": "++vt abs++" "++abs)):map conc concs
+  where
+    (aname,abs):concs = map (apSnd (dropWhile isSpace.drop 1).break (==':')) ls
+    conc (lang,s) = tag_class lang "dd"++vp abs lang++" "++s
+
+vt abs = tag' "img" ("src=\"http://cloud.grammaticalframework.org/minibar/tree-btn.png\""++a)
+  where
+    a = " onclick=\"vt(this,'"++abs++"')\""
+
+vp abs lang = tag' "img" ("src=\"http://cloud.grammaticalframework.org/minibar/tree-btn.png\""++a)
+  where
+    a = " onclick=\"vp(this,'"++lang++"','"++abs++"')\""
+
+fmtnum n =
+    case words (map u2s n) of
+      [_,n1,n2,_] -> dropWhile (=='0') n1++"."++n2
+      _ -> n
+  where
+    u2s '_' = ' '
+    u2s c   = c
+    
+--------------------------------------------------------------------------------
+
+paras ls =
+  case dropWhile null ls of
+    [] -> []
+    ls -> case break null ls of
+            (ls1,ls2) -> ls1:paras ls2
+
+wrap t ls = tag t:ls++[endtag t]
+
+tag_class cls t = tag' t ("class="++cls)
+
+tag' t a = '<':t++" "++a++">"
+
+tag t = '<':t++">"
+endtag t = tag ('/':t)
+
+apSnd f (x,y) = (x,f y)