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authorJonathan Tan <jonathantanmy@google.com>2016-11-02 10:29:16 -0700
committerJunio C Hamano <gitster@pobox.com>2016-11-29 14:22:08 -0800
commite4319562bc2834096fade432fd90c985b96476db (patch)
tree77709e8ee4d037edf8e14138f6d2984d441c2b2d /trailer.c
parentbe5a750939c212bc0781ffa04fabcfd2b2bd744e (diff)
downloadgit-e4319562bc2834096fade432fd90c985b96476db.tar.gz
trailer: be stricter in parsing separators
Currently, a line is interpreted to be a trailer line if it contains a separator. Make parsing stricter by requiring the text on the left of the separator, if not the empty string, to be of the "<token><optional whitespace>" form. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'trailer.c')
-rw-r--r--trailer.c29
1 files changed, 23 insertions, 6 deletions
diff --git a/trailer.c b/trailer.c
index f0ecde2d2f..eefe91d865 100644
--- a/trailer.c
+++ b/trailer.c
@@ -563,15 +563,32 @@ static int token_matches_item(const char *tok, struct arg_item *item, int tok_le
}
/*
- * Return the location of the first separator in line, or -1 if there is no
- * separator.
+ * If the given line is of the form
+ * "<token><optional whitespace><separator>..." or "<separator>...", return the
+ * location of the separator. Otherwise, return -1. The optional whitespace
+ * is allowed there primarily to allow things like "Bug #43" where <token> is
+ * "Bug" and <separator> is "#".
+ *
+ * The separator-starts-line case (in which this function returns 0) is
+ * distinguished from the non-well-formed-line case (in which this function
+ * returns -1) because some callers of this function need such a distinction.
*/
static int find_separator(const char *line, const char *separators)
{
- int loc = strcspn(line, separators);
- if (!line[loc])
- return -1;
- return loc;
+ int whitespace_found = 0;
+ const char *c;
+ for (c = line; *c; c++) {
+ if (strchr(separators, *c))
+ return c - line;
+ if (!whitespace_found && (isalnum(*c) || *c == '-'))
+ continue;
+ if (c != line && (*c == ' ' || *c == '\t')) {
+ whitespace_found = 1;
+ continue;
+ }
+ break;
+ }
+ return -1;
}
/*