feat: parse op_return

Scarb.toml

@@ -10,6 +10,8 @@ starknet = "2.8.5"
 openzeppelin = "0.18.0"
 utils = { git = "https://github.com/keep-starknet-strange/raito.git", rev = "02a13045b7074ae2b3247431cd91f1ad76263fb2" }
 consensus = { git = "https://github.com/keep-starknet-strange/raito.git", rev = "02a13045b7074ae2b3247431cd91f1ad76263fb2" }
+alexandria_math = { git = "https://github.com/keep-starknet-strange/alexandria.git" }
+alexandria_data_structures = { git = "https://github.com/keep-starknet-strange/alexandria.git" }
 
 [dev-dependencies]
 snforge_std = { git = "https://github.com/foundry-rs/starknet-foundry", tag = "v0.31.0" }

src/constants.cairo

@@ -0,0 +1,4 @@
+pub const OP_RETURN: u8 = 0x6a;
+pub const OP_13: u8 = 0x5d;
+pub const ETCHING_MAX_DIVISIBILITY: u8 = 38;
+pub const ETCHING_MAX_SPACERS: u32 = 0b00000111_11111111_11111111_11111111;

src/lib.cairo

@@ -1,7 +1,26 @@
 pub mod parser;
+pub mod types;
+pub mod constants;
 
+pub mod runestone {
+    pub mod flag;
+    pub mod tag;
+    pub mod message;
+}
+
+pub mod utils {
+    pub mod varint;
+    pub mod fields;
+    pub mod char;
+}
 
 #[cfg(test)]
 mod tests {
     mod parser;
+    mod opcodes;
+    mod cenotaph;
+    mod utils;
+    mod varint;
+    mod flag;
+    mod transactions;
 }