help: use parse_config_key for man config

The resulting code ends up about the same length, but it is a little more self-explanatory. It now explicitly documents and checks the pre-condition that the incoming var starts with "man.", and drops the magic offset "4". Signed-off-by: Jeff King <peff@peff.net> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Jeff King committed Jan 23, 2013 at 01:27 UTC 4d5c6cefd5c3e37fdf096c955abe9f9ac5938a53
1 file changed +7 -7
builtin/help.c
+7 -7
@@ -237,21 +237,21 @@ static int add_man_viewer_cmd(const char *name,
237
238 static int add_man_viewer_info(const char *var, const char *value)
239 {
240 - const char *name = var + 4;
241 - const char *subkey = strrchr(name, '.');
240 + const char *name, *subkey;
241 + int namelen;
242
243 - if (!subkey)
243 + if (parse_config_key(var, "man", &name, &namelen, &subkey) < 0 || !name)
244 return 0;
245
246 - if (!strcmp(subkey, ".path")) {
246 + if (!strcmp(subkey, "path")) {
247 if (!value)
248 return config_error_nonbool(var);
249 - return add_man_viewer_path(name, subkey - name, value);
249 + return add_man_viewer_path(name, namelen, value);
250 }
251 - if (!strcmp(subkey, ".cmd")) {
251 + if (!strcmp(subkey, "cmd")) {
252 if (!value)
253 return config_error_nonbool(var);
254 - return add_man_viewer_cmd(name, subkey - name, value);
254 + return add_man_viewer_cmd(name, namelen, value);
255 }
256
257 return 0;