From a22bc69491fe060bedfb048d72aec891c10ccc6d Mon Sep 17 00:00:00 2001
From: Anthony Debucquoy <tonitch@herisson.ovh>
Date: Thu, 20 Mar 2025 21:37:08 +0100
Subject: [PATCH] Adding range

---
 examples/lists.spf | 9 +++++++++
 spf.lark           | 2 +-
 spf.py             | 4 ++++
 3 files changed, 14 insertions(+), 1 deletion(-)
 create mode 100644 examples/lists.spf

diff --git a/examples/lists.spf b/examples/lists.spf
new file mode 100644
index 0000000..9dfb9ef
--- /dev/null
+++ b/examples/lists.spf
@@ -0,0 +1,9 @@
+liste premier = [1, 2, 3];
+
+ajouter 4 dans premier;
+
+liste deuxieme = [1:4];
+
+liste troisième = [deuxieme[0]: 10];
+
+liste quatrième = [1: troisième[6]];
diff --git a/spf.lark b/spf.lark
index 55f6bd1..e41353a 100644
--- a/spf.lark
+++ b/spf.lark
@@ -55,7 +55,7 @@ loop: "tant" "que" expression "faire" "{" instruction_seq "}" -> while_loop
 
 list: "[" expression? ("," expression)* "]" 
 
-range: "[" expression? ":" expression? "]"
+range: "[" expression ":" expression "]"
 
 controls: test
 		| loop
diff --git a/spf.py b/spf.py
index 8c8b907..2a3d98c 100755
--- a/spf.py
+++ b/spf.py
@@ -136,6 +136,10 @@ class SPFInterpreter(lark.visitors.Interpreter):
     true = lambda self, _: True
     false = lambda self, _: False
 
+    def range(self, el):
+        (left, right) = self.visit_children(el)
+        return list(range(left, right+1))
+
     def dump(self):
         self.variables.dump()