- const char *err = "Adds trailing whitespace";
- int seen_space = 0;
- int i;
-
- /*
- * We know len is at least two, since we have a '+' and we
- * checked that the last character was a '\n' before calling
- * this function. That is, an addition of an empty line would
- * check the '+' here. Sneaky...
- */
- if (isspace(line[len-2]))
- goto error;
-
- /*
- * Make sure that there is no space followed by a tab in
- * indentation.
- */
- err = "Space in indent is followed by a tab";
- for (i = 1; i < len; i++) {
- if (line[i] == '\t') {
- if (seen_space)
- goto error;
- }
- else if (line[i] == ' ')
- seen_space = 1;
- else
- break;
- }
- return;
+ char *err;
+ unsigned result = check_and_emit_line(line + 1, len - 1, ws_rule,
+ NULL, NULL, NULL, NULL);
+ if (!result)
+ return;