From d037a456fc7fc8c29c1929e6865f328d9f880970 Mon Sep 17 00:00:00 2001
From: Stefan Behnel <scoder@users.berlios.de>
Date: Tue, 16 Nov 2010 22:42:24 +0100
Subject: [PATCH] more cythonisation in the scanner/parser

---
 Cython/Plex/Actions.pxd  | 25 +++++++++++++++++++++++++
 Cython/Plex/Actions.py   | 13 +++++--------
 Cython/Plex/Scanners.pxd |  3 +++
 setup.py                 |  1 +
 4 files changed, 34 insertions(+), 8 deletions(-)
 create mode 100644 Cython/Plex/Actions.pxd

diff --git a/Cython/Plex/Actions.pxd b/Cython/Plex/Actions.pxd
new file mode 100644
index 00000000..34660a2d
--- /dev/null
+++ b/Cython/Plex/Actions.pxd
@@ -0,0 +1,25 @@
+
+cdef class Action:
+  cdef perform(self, token_stream, text)
+  cpdef same_as(self, other)
+
+cdef class Return(Action):
+  cdef object value
+  cdef perform(self, token_stream, text)
+  cpdef same_as(self, other)
+
+cdef class Call(Action):
+  cdef object function
+  cdef perform(self, token_stream, text)
+  cpdef same_as(self, other)
+
+cdef class Begin(Action):
+  cdef object state_name
+  cdef perform(self, token_stream, text)
+  cpdef same_as(self, other)
+
+cdef class Ignore(Action):
+  cdef perform(self, token_stream, text)
+
+cdef class Text(Action):
+  cdef perform(self, token_stream, text)
diff --git a/Cython/Plex/Actions.py b/Cython/Plex/Actions.py
index 9da4e340..50e1c9cc 100644
--- a/Cython/Plex/Actions.py
+++ b/Cython/Plex/Actions.py
@@ -8,6 +8,9 @@
 
 class Action(object):
 
+  def perform(self, token_stream, text):
+    pass # abstract
+
   def same_as(self, other):
     return self is other
 
@@ -18,8 +21,6 @@ class Return(Action):
   be returned as the value of the associated token
   """
 
-  value = None
-
   def __init__(self, value):
     self.value = value
 
@@ -38,8 +39,6 @@ class Call(Action):
   Internal Plex action which causes a function to be called.
   """
 
-  function = None
-
   def __init__(self, function):
     self.function = function
 
@@ -60,8 +59,6 @@ class Begin(Action):
   for more information.
   """
 
-  state_name = None
-
   def __init__(self, state_name):
     self.state_name = state_name
 
@@ -88,7 +85,7 @@ class Ignore(Action):
     return "IGNORE"
 
 IGNORE = Ignore()
-IGNORE.__doc__ = Ignore.__doc__
+#IGNORE.__doc__ = Ignore.__doc__
 
 class Text(Action):
   """
@@ -104,6 +101,6 @@ class Text(Action):
     return "TEXT"
 
 TEXT = Text()
-TEXT.__doc__ = Text.__doc__
+#TEXT.__doc__ = Text.__doc__
 
 
diff --git a/Cython/Plex/Scanners.pxd b/Cython/Plex/Scanners.pxd
index c746cc5a..8e93e4be 100644
--- a/Cython/Plex/Scanners.pxd
+++ b/Cython/Plex/Scanners.pxd
@@ -1,5 +1,7 @@
 import cython
 
+from Cython.Plex.Actions cimport Action
+
 cdef class Scanner:
 
     cdef public lexicon
@@ -26,6 +28,7 @@ cdef class Scanner:
 
     @cython.locals(input_state=long)
     cdef next_char(self)
+    @cython.locals(action=Action)
     cdef tuple read(self)
     cdef tuple scan_a_token(self)
     cdef tuple position(self)
diff --git a/setup.py b/setup.py
index 64b4330b..9cd680c9 100644
--- a/setup.py
+++ b/setup.py
@@ -87,6 +87,7 @@ else:
 def compile_cython_modules(profile=False):
     source_root = os.path.abspath(os.path.dirname(__file__))
     compiled_modules = ["Cython.Plex.Scanners",
+                        "Cython.Plex.Actions",
                         "Cython.Compiler.Scanning",
                         "Cython.Compiler.Parsing",
                         "Cython.Compiler.Visitor",
-- 
2.26.2