split DS_gene from jinja2 config and start working on filters

DS_gene.py

@@ -1,20 +1,13 @@
 #!/usr/bin/env python
 # encoding: utf-8
 
-import jinja2, random, os
+import os
 import sys
 import optparse
 from path import path
-from pymath.random_expression import RdExpression
 
-texenv = jinja2.Environment(
-    block_start_string = '\Block{',
-    # Gros WTF!! Si on le met en maj ça ne marche pas alors que c'est en maj dans le template...
-    block_end_string = '}',
-    variable_start_string = '\Var{',
-    variable_end_string = '}',
-    loader = jinja2.FileSystemLoader(os.path.abspath('.'))
-)
+from texenv import texenv
+from pymath.random_expression import RdExpression
 
 def main(options):
     #template = report_renderer.get_template(options.template)
@@ -42,10 +35,12 @@ def main(options):
         dest = path(str(subj) + output)
         with open( dest, 'w') as f:
             f.write(template.render( RdExpression = RdExpression , infos = {"subj" : subj}))
-        #os.system("pdflatex " + dest)
 
-        #if not options.dirty:
-        #    os.system("rm *.aux *.log")
+        if not options.no_compil:
+            os.system("pdflatex " + dest)
+
+            if not options.dirty:
+                os.system("rm *.aux *.log")
 
     cwd.cd()
 
@@ -53,10 +48,11 @@ if __name__ == '__main__':
 
 
     parser = optparse.OptionParser()
-    parser.add_option("-t","--tempalte",action="store",type="string",dest="template", help="File with the template. The name should have the following form tpl_... .")
+    parser.add_option("-t","--template",action="store",type="string",dest="template", help="File with the template. The name should have the following form tpl_... .")
     parser.add_option("-o","--output",action="store",type="string",dest="output",help="Base name for output )")
-    parser.add_option("-n","--number_subjects", action="store",type="int", dest="num_subj", default = 1, help="The number of subjects to make")
+    parser.add_option("-N","--number_subjects", action="store",type="int", dest="num_subj", default = 1, help="The number of subjects to make")
     parser.add_option("-d","--dirty", action="store_true", dest="dirty", help="Do not clean after compilation")
+    parser.add_option("-n","--no-compile", action="store_true", dest="no_compil", help="Do not compile source code")
 
     (options, args) = parser.parse_args()
 

example/tpl_example.tex

@@ -1,5 +1,5 @@
-\documentclass[a4paper,10pt]{/media/documents/Cours/Prof/Enseignements/tools/style/classDS}
-\usepackage{/media/documents/Cours/Prof/Enseignements/2013_2014}
+\documentclass[a4paper,10pt]{/media/documents/Cours/Prof/Enseignements/Archive/2013-2014/tools/style/classDS}
+\usepackage{/media/documents/Cours/Prof/Enseignements/Archive/2013-2014/2013_2014}
 
 % Title Page
 \titre{Calcul littéral et statistiques}
@@ -26,6 +26,10 @@ Le barème est donné à titre indicatif, il pourra être modifié.
             A = \Var{ A } \\
             B = \Var{ B }
 		\end{equation*}
+
+        Solutions:
+        \Var{A.simplify() | calculus}
+        \Var{B.simplify() | calculus(name = "B")}
 \end{Exo}
 
 

texenv.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+# encoding: utf-8
+
+import jinja2, os
+
+# Definition of jinja syntax for latex
+texenv = jinja2.Environment(
+    block_start_string = '\Block{',
+    # Gros WTF!! Si on le met en maj ça ne marche pas alors que c'est en maj dans le template...
+    block_end_string = '}',
+    variable_start_string = '\Var{',
+    variable_end_string = '}',
+    loader = jinja2.FileSystemLoader(os.path.abspath('.'))
+)
+
+# Filters
+
+def do_calculus(steps, name = "A"):
+    """Display properly the calculus
+
+    :param steps: list of steps
+    :returns: latex string ready to be endbeded
+
+    """
+    ans = "\\begin{eqnarray*}\n"
+
+    ans += " \\\\ \n".join([name + " & = & " + s for s in steps])
+    ans += "\n\\end{eqnarray*}\n"
+    return ans
+
+
+
+texenv.filters['calculus'] = do_calculus
+
+
+if __name__ == '__main__':
+    from pymath.expression import Expression
+    exp = Expression("2/4 + 18")
+    print(do_calculus(exp.simplify()))
+
+
+
+# -----------------------------
+# Reglages pour 'vim'
+# vim:set autoindent expandtab tabstop=4 shiftwidth=4:
+# cursor: 16 del