initial parsing prototype

uml.py

@@ -0,0 +1,54 @@
+from fileinput import input as finput
+
+class UntitledError: pass
+class InternalError(UntitledError): pass
+class ParsingError(UntitledError): pass
+class MiscError(UntitledError): pass
+
+class Element:
+    def __init__(self, element, data=None):
+        if not data: self.data = ""
+        else: self.data = data
+        self.element = element
+    def append(self, string, space=False):
+        if space: self.data += " "
+        self.data += string
+
+def printchain(chain):
+    for i in chain:
+        if not i.data == None: print(i.data, i.element)
+        else: print(i.element)
+
+chain = []
+for i in finput():
+    i = i.rstrip()
+
+    # ignore blank lines
+    if len(i) == 0: continue
+
+    # lines with text
+    if i[0].isalpha(): chain.append(Element("p", i))
+
+    # we have a processing command
+    if not i[0].isalpha():
+        command = ""
+        params = ""
+        counter = 0
+        for j in i:
+            if not j.isalpha() \
+                and not j == ' ':
+                command += j
+            else:
+                if j == ' ':
+                    params = i[counter + 1:]
+                else:
+                    params = i[counter:]
+                break
+            counter += 1
+        if command[0] == "#": chain.append(Element("h" + str(len(command)), params))
+        elif command == "%": chain.append(Element("c", params))
+        elif command == "*": chain.append(Element("l", params))
+        elif command == "-": chain.append(Element("l", params))
+        elif command == ">": chain.append(Element("q", params))
+        elif command == "=": chain.append(Element("r", params))
+printchain(chain)