X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fccan_tokenizer%2Fread_cstring.c;h=9a62d0cc5b8c02b171e5b8cc1e56906197298355;hp=2302180c856943e452b1d016e5b4dc532af5073e;hb=165727526f785b05f67f3d88f9518a0a840acbbf;hpb=69cc1b45b4921c0be738902fe0d5225f135e2aae

diff --git a/ccan/ccan_tokenizer/read_cstring.c b/ccan/ccan_tokenizer/read_cstring.c
index 2302180c..9a62d0cc 100644
--- a/ccan/ccan_tokenizer/read_cstring.c
+++ b/ccan/ccan_tokenizer/read_cstring.c
@@ -125,6 +125,8 @@ char *read_cstring(array_char *out, const char *s, const char *e, char quoteChar
 								"Double quote characters need not be escaped within single quotes"); */
 							break;
 						}
+						if (c=='?') // \? is needed in some situations to avoid building a trigraph
+							break;
 						tok_msg_warn(unknown_escape, s-2,
 							"Unknown escape sequence '\\%c'", c);
 						break;