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-rw-r--r--trailer.c75
1 files changed, 53 insertions, 22 deletions
diff --git a/trailer.c b/trailer.c
index ea6eeb0..eeaafc4 100644
--- a/trailer.c
+++ b/trailer.c
@@ -543,29 +543,37 @@ static int token_matches_item(const char *tok, struct arg_item *item, int tok_le
return item->conf.key ? !strncasecmp(tok, item->conf.key, tok_len) : 0;
}
-static int parse_trailer(struct strbuf *tok, struct strbuf *val,
- const struct conf_info **conf, const char *trailer)
+/*
+ * Return the location of the first separator in line, or -1 if there is no
+ * separator.
+ */
+static int find_separator(const char *line, const char *separators)
+{
+ int loc = strcspn(line, separators);
+ if (!line[loc])
+ return -1;
+ return loc;
+}
+
+/*
+ * Obtain the token, value, and conf from the given trailer.
+ *
+ * separator_pos must not be 0, since the token cannot be an empty string.
+ *
+ * If separator_pos is -1, interpret the whole trailer as a token.
+ */
+static void parse_trailer(struct strbuf *tok, struct strbuf *val,
+ const struct conf_info **conf, const char *trailer,
+ int separator_pos)
{
- size_t len;
- struct strbuf seps = STRBUF_INIT;
struct arg_item *item;
int tok_len;
struct list_head *pos;
- strbuf_addstr(&seps, separators);
- strbuf_addch(&seps, '=');
- len = strcspn(trailer, seps.buf);
- strbuf_release(&seps);
- if (len == 0) {
- int l = strlen(trailer);
- while (l > 0 && isspace(trailer[l - 1]))
- l--;
- return error(_("empty trailer token in trailer '%.*s'"), l, trailer);
- }
- if (len < strlen(trailer)) {
- strbuf_add(tok, trailer, len);
+ if (separator_pos != -1) {
+ strbuf_add(tok, trailer, separator_pos);
strbuf_trim(tok);
- strbuf_addstr(val, trailer + len + 1);
+ strbuf_addstr(val, trailer + separator_pos + 1);
strbuf_trim(val);
} else {
strbuf_addstr(tok, trailer);
@@ -587,8 +595,6 @@ static int parse_trailer(struct strbuf *tok, struct strbuf *val,
break;
}
}
-
- return 0;
}
static void add_trailer_item(struct list_head *head, char *tok, char *val)
@@ -619,6 +625,12 @@ static void process_command_line_args(struct list_head *arg_head,
const struct conf_info *conf;
struct list_head *pos;
+ /*
+ * In command-line arguments, '=' is accepted (in addition to the
+ * separators that are defined).
+ */
+ char *cl_separators = xstrfmt("=%s", separators);
+
/* Add an arg item for each configured trailer with a command */
list_for_each(pos, &conf_head) {
item = list_entry(pos, struct arg_item, list);
@@ -631,12 +643,25 @@ static void process_command_line_args(struct list_head *arg_head,
/* Add an arg item for each trailer on the command line */
for_each_string_list_item(tr, trailers) {
- if (!parse_trailer(&tok, &val, &conf, tr->string))
+ int separator_pos = find_separator(tr->string, cl_separators);
+ if (separator_pos == 0) {
+ struct strbuf sb = STRBUF_INIT;
+ strbuf_addstr(&sb, tr->string);
+ strbuf_trim(&sb);
+ error(_("empty trailer token in trailer '%.*s'"),
+ (int) sb.len, sb.buf);
+ strbuf_release(&sb);
+ } else {
+ parse_trailer(&tok, &val, &conf, tr->string,
+ separator_pos);
add_arg_item(arg_head,
strbuf_detach(&tok, NULL),
strbuf_detach(&val, NULL),
conf);
+ }
}
+
+ free(cl_separators);
}
static struct strbuf **read_input_file(const char *file)
@@ -775,11 +800,17 @@ static int process_input_file(FILE *outfile,
/* Parse trailer lines */
for (i = trailer_start; i < trailer_end; i++) {
- if (lines[i]->buf[0] != comment_line_char &&
- !parse_trailer(&tok, &val, NULL, lines[i]->buf))
+ int separator_pos;
+ if (lines[i]->buf[0] == comment_line_char)
+ continue;
+ separator_pos = find_separator(lines[i]->buf, separators);
+ if (separator_pos >= 1) {
+ parse_trailer(&tok, &val, NULL, lines[i]->buf,
+ separator_pos);
add_trailer_item(head,
strbuf_detach(&tok, NULL),
strbuf_detach(&val, NULL));
+ }
}
return trailer_end;