Add filter and create setup function

opytex/filter.py

@@ -1,31 +0,0 @@
-#!/usr/bin/env python
-# encoding: utf-8
-
-"""
-Custom filter for Bopytex
-"""
-
-def do_calculus(steps, name="A", sep="=", end="", joining=" \\\\ \n"):
-    """Display properly the calculus
-
-    Generate this form string:
-    "name & sep & a_step end joining"
-
-    :param steps: list of steps
-    :returns: latex string ready to be endbeded
-
-
-    """
-
-    ans = joining.join([
-        name + " & "
-        + sep + " & "
-        + str(s) + end for s in steps
-        ])
-    return ans
-
-
-# -----------------------------
-# Reglages pour 'vim'
-# vim:set autoindent expandtab tabstop=4 shiftwidth=4:
-# cursor: 16 del

opytex/opytex.py

@@ -13,6 +13,7 @@ import sys
 from path import Path
 import pytex
 import pymath
+import opytex.filters as filters
 
 formatter = logging.Formatter('%(name)s :: %(levelname)s :: %(message)s')
 steam_handler = logging.StreamHandler()
@@ -25,7 +26,8 @@ logger = logging.getLogger(__name__)
 logger.setLevel(logging.DEBUG)
 logger.addHandler(steam_handler)
 
-MAPYTEX_TOOLS = {
+def setup():
+    mapytex_tools = {
         "Expression": pymath.Expression,
         "Polynom": pymath.Polynom,
         "Fraction": pymath.Fraction,
@@ -35,8 +37,9 @@ MAPYTEX_TOOLS = {
         "Dataset": pymath.Dataset,
         "WeightedDataset": pymath.WeightedDataset,
         }
+    pytex.update_export_dict(mapytex_tools)
 
-pytex.update_export_dict(MAPYTEX_TOOLS)
+    pytex.add_filter("do_calculus", filters.do_calculus)
 
 
 def get_working_dir(options):
@@ -168,6 +171,8 @@ def produce_and_compile(options):
 
 
 def main():
+    setup()
+
     parser = optparse.OptionParser()
     parser.add_option(
         "-t",