From 6e60bebf3db66ff7aa63ad84556f2665d4bf605a Mon Sep 17 00:00:00 2001
From: Devine Lu Linvega <aliceffekt@gmail.com>
Date: Mon, 8 Apr 2024 10:32:06 -0700
Subject: [PATCH] Faster rewrite

---
 src/modal.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/modal.c b/src/modal.c
index 7cf6066..adc3bf6 100644
--- a/src/modal.c
+++ b/src/modal.c
@@ -11,7 +11,7 @@ static char bank_a[0x4000], *prog_ = bank_a;
 static char bank_b[0x4000], *outp_ = bank_b;
 static char *regs[0x100];
 
-#define spacer(c) (c < 0x21 || c == '(' || c == ')')
+#define spacer(c) (c < 0x21 || c == '(' || c == ')' || !c)
 
 static char *
 walk(char *s)
@@ -149,13 +149,13 @@ add_rule(char *p)
 static int
 rewrite(void)
 {
-	char c, c_ = 0, last = 0, *p = direction ? bank_b : bank_a, *o = p;
+	char c, last = 0, *p = direction ? bank_b : bank_a;
 	while((c = *p) && c <= ' ') p++;
 	while((c = *p)) {
 		int i;
-		if(p[0] == '<' && p[1] == '>') return add_rule(p);
-		if(p != o) c_ = *(p - 1);
-		if(p == o || spacer(c_)) {
+		if(p[0] == '<' && p[1] == '>')
+			return add_rule(p);
+		if(spacer(last)) {
 			for(i = 0; i < rules_len; i++) {
 				Rule *r = &rules[i];
 				char *res = match_rule(p, r);