grammar: document identifiers

2023-08-26 02:28:55 +00:00 · 2023-08-26 02:28:55 +00:00 · e6c3919d45
commit e6c3919d45
parent 2a818d1c05
1 changed files with 3 additions and 0 deletions
--- 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