added template engine

hyml/template.hy

@@ -0,0 +1,43 @@
+#!/usr/bin/python3
+;----------------------------------------------
+; Template functionality
+; 
+; Utilizing render-template and extend-template
+;----------------------------------------------
+(require (hyml.minimal (*)))
+(import (hyml.minimal (*)))
+
+; template dir setter. this could be retrieved OR set
+; from other modules too
+(def template-dir "templates/")
+
+; return / chain extended list rather than extending in-place (.extend)
+(defn extend [a b] (.extend a b) a)
+
+; should take previus variables and pass them to the next template
+; globals are automaticly added, locals should be added with dictinary
+; or (locals) / (vars)
+; (setv variable "click")
+; (render-template "index.hyml" (locals))
+(defn render-template [tmpl &rest args]
+  ; prefix template with dir
+  (setv tmpl (+ template-dir tmpl))
+  ; we want to get a recursive access to render-template function and 
+  ; extend-template macro to enable "extend" / blocks functionality in templates
+  (setv vars (globals))
+  ; pass variables from arguments
+  (for [d args] (setv vars (merge-two-dicts d vars)))
+  ; next part is very similar to parse-mnml unquote-splice part
+  (.join "" (map
+    (fn [item] (parse-mnml item vars))
+      ; include will return unquote-splice (~@) so we need to get over them to
+      ; real content with first and second
+      (eval  (second  (first (include tmpl))) vars))))
+
+; to imitate jinja and mako
+; ~(extend-template "layout.hyml" {"var1" "val1" "var2" "val2"})
+(defmacro extend-template [tmpl &rest args]
+  `(if-not (empty? ~args)
+            (do (setv args (list-comp (fn [arg] (parse-mnml arg)) (list ~args)))
+                (apply render-template (extend (extend [~tmpl] ~args) [(globals)])))
+            (render-template ~tmpl (globals))))

setup.py

@@ -17,13 +17,13 @@
     'hyml': ['*.hy']
   },
 
-  version = 'v0.2.2',
+  version = 'v0.2.3',
   description = 'HyML - XML / (X)HTML generator for Hy',
   author = 'Marko Manninen',
   author_email = '[email protected]',
 
   url = 'https://github.com/markomanninen/hyml',
-  download_url = 'https://github.com/markomanninen/hyml/archive/v0.2.2.tar.gz',
+  download_url = 'https://github.com/markomanninen/hyml/archive/v0.2.3.tar.gz',
   keywords = ['hylang', 'python', 'lisp', 'macros', 'markup language', 'dsl', 'xml', 'html', 'xhtml'],
   platforms = ['any'],