parse problem code template

problem/utils.py

@@ -0,0 +1,10 @@
+import re
+
+
+def parse_problem_template(template_str):
+    prepend = re.findall("//PREPEND BEGIN\n([\s\S]+?)//PREPEND END", template_str)
+    template = re.findall("//TEMPLATE BEGIN\n([\s\S]+?)//TEMPLATE END", template_str)
+    append = re.findall("//APPEND BEGIN\n([\s\S]+?)//APPEND END", template_str)
+    return {"prepend": prepend[0] if prepend else "",
+            "template": template[0] if template else "",
+            "append": append[0] if append else ""}