From 722992ee28830b38c5e46e477e0ab7b2627a3f1d Mon Sep 17 00:00:00 2001
From: Nathan Reiner <nathan@nathanreiner.xyz>
Date: Wed, 14 May 2025 17:02:41 +0200
Subject: fix entry argument

---
 grammar/middle-recursion.grm |  2 +-
 src/argument.zig             | 17 ++++++++++++-----
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/grammar/middle-recursion.grm b/grammar/middle-recursion.grm
index 71cc71f..ccb8b58 100644
--- a/grammar/middle-recursion.grm
+++ b/grammar/middle-recursion.grm
@@ -1,3 +1,3 @@
-main -> 'a' main B | B
+S -> 'a' S B | B
 A -> 'ab'
 B -> A | 'b'
diff --git a/src/argument.zig b/src/argument.zig
index a9c823d..75bb7bf 100644
--- a/src/argument.zig
+++ b/src/argument.zig
@@ -143,11 +143,6 @@ pub const Args = union(Mode) {
 
 		const text = Entry.read_file(check(args.next()), allocator);
 		defer allocator.free(text);
-		const grammar = Grammar.parse(
-			"main",
-			text,
-			allocator
-		) catch |e| help(e);
 
 		switch (mode) {
 			.recognize => {
@@ -162,6 +157,12 @@ pub const Args = union(Mode) {
 					} else help(error.InvalidArgument);
 				}
 
+				const grammar = Grammar.parse(
+					entry,
+					text,
+					allocator
+				) catch |e| help(e);
+
 				return Self {
 					.recognize = .{
 						.input = input orelse Entry.stdin(),
@@ -191,6 +192,12 @@ pub const Args = union(Mode) {
 					} else help(error.InvalidArgument);
 				}
 
+				const grammar = Grammar.parse(
+					entry,
+					text,
+					allocator
+				) catch |e| help(e);
+
 				return Self {
 					.generate = .{
 						.count = count,
-- 
cgit v1.2.3-70-g09d2