commit 653c9a034fe0f81fd93cc7a1fb1bb385490de085
from: Sven M. Hallberg <pesco@khjk.org>
date: Sun Jul 02 15:50:13 2023 UTC

skip leading whitespace in rule a85zero

This matches the other rules. An ASCII85-encoded stream may begin with
arbitrary whitespace.

commit - 0cb8c6a3ba749d4b075c1d1c6ffd094676b7e867
commit + 653c9a034fe0f81fd93cc7a1fb1bb385490de085
blob - 294319147561500b4264666b9d09b3781a7eeb1a
blob + 6f6875da900aa7c9d36e813729d62640aac5221d
--- pdf.c
+++ pdf.c
@@ -2383,7 +2383,7 @@ init_parser(struct Env *aux)
 	 */
 
 	/* ASCII85Decode */
-	H_ARULE(a85zero,	h_ch('z'));
+	H_ARULE(a85zero,	h_right(aws, h_ch('z')));
 	H_ARULE(a85digit,	h_ch_range('!', 'u'));
 	H_RULE(a85eod,		SEQ(aws, tilde, aws, rangle, aws, end));
 	H_RULE(a85two,		h_repeat_n(h_right(aws, a85digit), 2));