From a77c2f97954285665a959ebc59d734e413db5dc1 Mon Sep 17 00:00:00 2001
From: Bertrand Benjamin <benjamin.bertrand@opytex.org>
Date: Thu, 9 May 2019 16:46:24 +0200
Subject: [PATCH] Feat(random): Start random tree generation

---
 mapytex/calculus/core/random/__init__.py | 67 ++++++++++++++++++++++++
 mapytex/calculus/core/random/str_gene.py | 39 --------------
 2 files changed, 67 insertions(+), 39 deletions(-)
 delete mode 100644 mapytex/calculus/core/random/str_gene.py

diff --git a/mapytex/calculus/core/random/__init__.py b/mapytex/calculus/core/random/__init__.py
index e69de29..c9f3080 100644
--- a/mapytex/calculus/core/random/__init__.py
+++ b/mapytex/calculus/core/random/__init__.py
@@ -0,0 +1,67 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+# vim:fenc=utf-8
+#
+# Copyright © 2017 lafrite <lafrite@Poivre>
+#
+# Distributed under terms of the MIT license.
+
+"""
+Tools to extract random nodes, random variables, generate random values and
+fill new trees
+
+Flow
+----
+
+Tree with RdLeaf
+|
+| Extract nodes
+|
+List of nodes to generate
+|
+| extract_rv
+|
+List random variables to generate
+|
+| Generate
+|
+Dictionnary of generated random variables
+|
+| Compute nodes
+|
+Dictionnary of computed nodes
+|
+| Replace
+|
+Tree with RdLeaf replaced by generated values
+
+"""
+
+
+def extract_rv(node_list):
+    """ Extract the set of random values from the node list
+
+    :param node_list: list of nodes
+    :return: set of random values
+
+    :example:
+    >>> node_list = ["{a}", "{a*k}"]
+    >>> extract_rv(node_list)
+    {"a", "k"}
+    """
+    pass
+
+def compute_nodes(node_list, generated_values):
+    """ Compute nodes from generated random values
+
+    :param generated_values: Dictionnary of name:generated value
+    :param node_list: list of nodes
+    :return: Dictionnary of evaluated nodes from generated values
+
+    :example:
+    >>> node_list = ["{a}", "{a*k}"]
+    >>> generated_values = {"a":2, "k":3}
+    >>> compute_nodes(node_list, generated_values)
+    {"{a}": 2, "{a*k}": 6} 
+    """
+    pass
diff --git a/mapytex/calculus/core/random/str_gene.py b/mapytex/calculus/core/random/str_gene.py
deleted file mode 100644
index 7f857a7..0000000
--- a/mapytex/calculus/core/random/str_gene.py
+++ /dev/null
@@ -1,39 +0,0 @@
-#! /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