Fiddling with the site.

hy/importer.py

@@ -1,8 +1,8 @@
 #
 
+from hy.compiler import hy_compile
 from hy.lex import tokenize
 from hy.core import process
-from hy.compiler import hy_compile
 
 
 import imp
@@ -10,18 +10,34 @@ import sys
 import os
 
 
-def import_file_to_hst(fpath):
-    tree = tokenize(open(fpath, 'r').read())
+if sys.version_info[0] >= 3:
+    from io import StringIO
+else:
+    from StringIO import StringIO
+
+
+def import_buffer_to_hst(fd):
+    tree = tokenize(fd.read())
     tree = process(tree)
     return tree
 
 
+def import_file_to_hst(fpath):
+    return import_buffer_to_hst(open(fpath, 'r'))
+
+
 def import_file_to_ast(fpath):
     tree = import_file_to_hst(fpath)
     ast = hy_compile(tree)
     return ast
 
 
+def import_string_to_ast(buff):
+    tree = import_buffer_to_hst(StringIO(buff))
+    ast = hy_compile(tree)
+    return ast
+
+
 def import_file_to_module(name, fpath):
     ast = import_file_to_ast(fpath)
     mod = imp.new_module(name)

site/app.hy

@@ -1,15 +1,47 @@
 ; Copyright (c) Paul R. Tagliamonte <tag@pault.ag>, 2013 under the terms of
 ; hy.
 
-
-
 (import-from flask
-             Flask render-template)
+             Flask render-template request)
+
+(import-from pygments highlight)
+(import-from pygments.lexers PythonLexer ClojureLexer)
+(import-from pygments.formatters HtmlFormatter)
+
+(import-from hy.importer import_string_to_ast)
+
+(import codegen)
+
+; pygments bits.
+(def lexers {"python" (PythonLexer)
+             "lisp"   (ClojureLexer)})
+
+
+; internal use fns
+(defn colorize-python [x]
+  (highlight x (get lexers "python") (HtmlFormatter)))
+
+
+(defn hy-to-py [hython]
+  (.to_source codegen
+    (import-string-to-ast hython)))
 
 
 (def app (Flask "__main__"))  ; long story, needed hack
 
 
+; view routes
+
 (route "/" [] (render-template "index.html"))
 
-(post-route "/test" [] (render-template "index.html"))
+
+(post-route "/format/<language>" [language]
+    (highlight
+      (get request.form "code") (get lexers language) (HtmlFormatter)))
+
+
+(post-route "/hy2py" [] (hy-to-py (get request.form "code")))
+
+
+(post-route "/hy2pycol" []
+  (colorize-python (hy-to-py (get request.form "code"))))