From 023c0d12c896aa20fb9a35cc6a03c6df77d5f9d5 Mon Sep 17 00:00:00 2001
From: Mylloon <kennel.anri@tutanota.com>
Date: Mon, 15 Apr 2024 20:40:15 +0200
Subject: [PATCH] Add CSV parser

---
 converter.py | 75 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 converter.py

diff --git a/converter.py b/converter.py
new file mode 100644
index 0000000..5129b2d
--- /dev/null
+++ b/converter.py
@@ -0,0 +1,75 @@
+from csv import reader as csv_reader
+from pprint import pp as print, pformat
+from sys import argv, stderr
+
+
+class System:
+    """Represents an L-System"""
+
+    def __init__(
+        self,
+        name: str,
+        base: set[str],
+        axiom: str,
+        substitutions: list[tuple[str, str]],
+        interpretations: list[tuple[str, str]],
+    ):
+        self.name = name
+        """System name"""
+
+        self.base = base
+        """Set used"""
+
+        self.axiom = axiom
+        """Axiom used at the start of iterations"""
+
+        self.substitutions = substitutions
+        """
+        Substitution for each member of the base,
+        represented as a couple (member, substitution)
+        """
+
+        self.interpretations = interpretations
+        """
+        Interpretation for each member of the base,
+        represented as a couple (member, interpretation)
+        """
+
+        # TODO: Est-ce que on garde ça ??
+        # Interpretation of extra symbols added if necessary
+        extra_symbols = ["[", "]"]
+        for _, substitution in substitutions:
+            if any(symbol in substitution for symbol in extra_symbols):
+                self.interpretations.extend(
+                    [(extra_symbols[0], "STORE"), (extra_symbols[1], "RESTORE")]
+                )
+                break
+
+    def __repr__(self):
+        return pformat(self.__dict__, compact=True, width=120, sort_dicts=False)
+
+
+def data_reader(path: str, delimiter: str = ","):
+    """Read a CSV file and returns a list of L-System"""
+    res: list[System] = []
+    with open(path) as csv_file:
+        data = csv_reader(csv_file, delimiter=delimiter)
+        for system in data:
+            name = system[0]
+            base = set(system[1])
+            axiom = system[2]
+            substitutions = [(v, system[3 + i]) for i, v in enumerate(base)]
+            interpretations = [
+                (v, system[3 + i + len(substitutions)]) for i, v in enumerate(base)
+            ]
+
+            res.append(System(name, base, axiom, substitutions, interpretations))
+    return res
+
+
+if __name__ == "__main__":
+    if len(argv) != 2:
+        print(f"Syntax error:\n\tpython {argv[0]} file.csv", stream=stderr)
+        exit(1)
+
+    print(data_reader(argv[1]))