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Merge pull request #2864 from stapelberg/fixconfig 

Improve error messages for incorrect config lines starting with “set”
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Michael Stapelberg 2017-08-20 13:16:53 +02:00 committed by GitHub
parent ad8bb41686 1e349ae3e1
commit afdf67924a
3 changed files with 17 additions and 10 deletions
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3
parser-specs/config.spec
View File

@ -17,7 +17,8 @@ state INITIAL:
end ->
error ->
'#' -> IGNORE_LINE
'set' -> IGNORE_LINE
'set ' -> IGNORE_LINE
'set ' -> IGNORE_LINE
'set_from_resource' -> IGNORE_LINE
bindtype = 'bindsym', 'bindcode', 'bind' -> BINDING
'bar' -> BARBRACE

21
src/config_parser.c
View File

@ -235,7 +235,7 @@ static void next_state(const cmdp_token *token) {
*
*/
static const char *start_of_line(const char *walk, const char *beginning) {
while (*walk != '\n' && *walk != '\r' && walk >= beginning) {
while (walk >= beginning && *walk != '\n' && *walk != '\r') {
walk--;
}
@ -903,6 +903,8 @@ bool parse_file(const char *f, bool use_nagbar) {
fread(current_config, 1, stbuf.st_size, fstr);
rewind(fstr);
bool invalid_sets = false;
while (!feof(fstr)) {
if (!continuation)
continuation = buffer;
@ -916,6 +918,7 @@ bool parse_file(const char *f, bool use_nagbar) {
}
/* sscanf implicitly strips whitespace. */
value[0] = '\0';
const bool skip_line = (sscanf(buffer, "%511s %4095[^\n]", key, value) < 1 || strlen(key) < 3);
const bool comment = (key[0] == '#');
value[4095] = '\n';
@ -936,26 +939,28 @@ bool parse_file(const char *f, bool use_nagbar) {
continue;
}
if (strcasecmp(key, "set") == 0) {
if (strcasecmp(key, "set") == 0 && *value != '\0') {
char v_key[512];
char v_value[4096];
char v_value[4096] = {'\0'};
if (sscanf(value, "%511s %4095[^\n]", v_key, v_value) < 1) {
ELOG("Failed to parse variable specification '%s', skipping it.\n", value);
invalid_sets = true;
continue;
}
if (v_key[0] != '$') {
ELOG("Malformed variable assignment, name has to start with $\n");
invalid_sets = true;
continue;
}
upsert_variable(&variables, v_key, v_value);
continue;
} else if (strcasecmp(key, "set_from_resource") == 0) {
char res_name[512];
char res_name[512] = {'\0'};
char v_key[512];
char fallback[4096];
char fallback[4096] = {'\0'};
/* Ensure that this string is terminated. For example, a user might
* want a variable to be empty if the resource can't be found and
@ -967,11 +972,13 @@ bool parse_file(const char *f, bool use_nagbar) {
if (sscanf(value, "%511s %511s %4095[^\n]", v_key, res_name, fallback) < 1) {
ELOG("Failed to parse resource specification '%s', skipping it.\n", value);
invalid_sets = true;
continue;
}
if (v_key[0] != '$') {
ELOG("Malformed variable assignment, name has to start with $\n");
invalid_sets = true;
continue;
}
@ -1087,12 +1094,12 @@ bool parse_file(const char *f, bool use_nagbar) {
check_for_duplicate_bindings(context);
reorder_bindings();
if (use_nagbar && (context->has_errors || context->has_warnings)) {
if (use_nagbar && (context->has_errors || context->has_warnings || invalid_sets)) {
ELOG("FYI: You are using i3 version %s\n", i3_version);
if (version == 3)
ELOG("Please convert your configfile first, then fix any remaining errors (see above).\n");
start_config_error_nagbar(f, context->has_errors);
start_config_error_nagbar(f, context->has_errors || invalid_sets);
}
bool has_errors = context->has_errors;

3
testcases/t/201-config-parser.t
View File

@ -446,8 +446,7 @@ hide_edge_border both
client.focused #4c7899 #285577 #ffffff #2e9ef4
EOT
my $expected_all_tokens = "ERROR: CONFIG: Expected one of these tokens: <end>, '#', '" . join("', '", qw(
set
my $expected_all_tokens = "ERROR: CONFIG: Expected one of these tokens: <end>, '#', '" . join("', '", 'set ', 'set ', qw(
set_from_resource
bindsym
bindcode