From 88a6f54ef3e199f6dfef67f7a6d037f29dd47245 Mon Sep 17 00:00:00 2001
From: sanine <sanine.not@pm.me>
Date: Thu, 2 Jan 2025 18:40:21 -0600
Subject: begin implementing metagrammar for ddf

---
 .gitignore  |  2 ++
 example.lua | 21 ++++++++++++++++-----
 grammar.lua |  4 ++--
 3 files changed, 20 insertions(+), 7 deletions(-)
 create mode 100644 .gitignore

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3819313
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+*.swp
+*.swo
diff --git a/example.lua b/example.lua
index 2bd87fa..9f4a852 100644
--- a/example.lua
+++ b/example.lua
@@ -17,10 +17,15 @@ for line in csvFile:lines() do
   end
 end
 
-print(#data)
-for i, v in ipairs(data[1]) do
-  print(i, v)
-end
+
+local metaproduction = {}
+metaproduction["<start>"] = {{'<functions>'}}
+metaproduction["<functions>"] = { {}, {'<function>', '<functions>'} }
+metaproduction["<function>"] = {{ 'defun(', '<arity>', ')\n' }}
+metaproduction["<arity>"] = { {'0'}, {'1+', '<arity>'} }
+
+local metagrammar = Grammar.createGrammar(metaproduction, {})
+
 
 local production = {}
 production["<start>"]={{'<expr>'}}
@@ -41,7 +46,8 @@ production["<number>"]={ {'0.','<digit>','<digit>','<digit>'} }
 local grammar = Grammar.createGrammar(production, {})
 
 
-math.randomseed(0)
+--math.randomseed(0)
+math.randomseed(os.time())
 
 
 function randomGenome()
@@ -54,6 +60,11 @@ function randomGenome()
 end
 
 
+local g = randomGenome()
+print(#g, metagrammar:expand(randomGenome()))
+os.exit(0)
+
+
 function randomPop()
   local pop = {}
   for n=1,1000 do
diff --git a/grammar.lua b/grammar.lua
index 286723d..d4adf32 100644
--- a/grammar.lua
+++ b/grammar.lua
@@ -59,10 +59,10 @@ function Grammar.expandSequence(self, sequence, n)
 end
 
 
-function Grammar.expand(self, genome, maxLength)
+function Grammar.expand(self, genome, geneIndex, maxLoops)
+  geneIndex = 0
   maxLoops = maxLoops or 2
   local sequence = { '<start>' }
-  local geneIndex = 0
   local count = 0
   local continue = true
   while continue do
-- 
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