From e6c3919d45ed10341dc0f23f74f66ddcba26a73f Mon Sep 17 00:00:00 2001
From: Zack Buhman <zack@buhman.org>
Date: Sat, 26 Aug 2023 02:28:55 +0000
Subject: [PATCH] grammar: document identifiers

---
 grammar.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/grammar.txt b/grammar.txt
index 39f0c7a..6a6b9f4 100644
--- a/grammar.txt
+++ b/grammar.txt
@@ -7,8 +7,11 @@ shift          → andl ( ( "<<" | ">>" ) andl )*
 andl           → orl ( "&" orl )*
 orl            → andl ( ( "|" | "^" ) andl )*
 primary        → number
+	       → identifier
                | "(" expression ")"
 
+identifier → ( [a-z][A-Z][0-9][_] ) +
+
 number → "%" base2-number
        | "$" base16-number
        | "0b" base2-number