From 711e1b9418a02c1dfd961c08faf4abf068513137 Mon Sep 17 00:00:00 2001
From: "plvines (corpora)" <paul.vines@baesystems.com>
Date: Mon, 17 Feb 2020 14:28:45 +0000
Subject: [PATCH] Added relaxation/violation for missing %%EOF and/or startxref
after internal (updated) xref-table + trailer
---
pdf.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/pdf.c b/pdf.c
index 9a1ce54..9ad84b3 100644
--- a/pdf.c
+++ b/pdf.c
@@ -710,9 +710,10 @@ init_parser(struct Env *aux)
H_RULE(hdr_junk, VIOL(h_many1(h_butnot(h_ch_range(0, 255), objdef)),
"Uncommented junk after header (severity=1)"));
- H_RULE(tail, SEQ(body, h_optional(xr_td), startxr));
- // XXX the real world likes to omit 'startxr' from all but the
- // last trailer. we should accept-and-warn in that case.
+ H_RULE(tail, SEQ(body, CHX(SEQ(h_optional(xr_td), startxr),
+ VIOL(SEQ(xr_td, OPT(SEQ(nl, KW("startxref"), nl, lws, nat, nl)),
+ OPT(nl), OPT(LIT("%%EOF")), OPT(nl)),
+ "Improper end of trailer - missing startxref and/or %%EOF (severity=5)"))));
H_RULE(final_eof_junk, CHX(VIOL(SEQ(h_many1(nl), end), "Multiple newlines after final %%EOF (severity=4)"),
VIOL(h_many1(h_butnot(h_ch_range(0, 255), LIT("%%EOF"))),
"Data after final %%EOF (severity=7)"),
--
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