Feat: import Expression from calculus and docstring in random

mapytex/calculus/core/random/str_gene.py

@@ -0,0 +1,39 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+# vim:fenc=utf-8
+#
+# Copyright © 2017 lafrite <lafrite@Poivre>
+#
+# Distributed under terms of the MIT license.
+
+"""
+Function to create random strings
+
+:example:
+
+>>> form = "{a} / {b} + {c} / {k*b}"
+>>> conditions = [
+...    "abs({b}) != 1",
+...    "{d} > 1",
+...    "{b} != {d}",
+...    "gcd({a},{b}) == 1",
+...    "gcd({c},{k*b}) == 1",
+...    ]
+>>> #random_str(form, conditions)
+
+>>> form = "{a:int}x + {b:fraction}"
+>>> conditions = [
+...    "{b.denom} > 2",
+...    ]
+>>> #random_str(form, conditions)
+
+"""
+import random
+
+__all__ = []
+
+
+# -----------------------------
+# Reglages pour 'vim'
+# vim:set autoindent expandtab tabstop=4 shiftwidth=4:
+# cursor: 16 del