mirror of
https://codeberg.org/dnkl/yambar.git
synced 2025-06-16 08:15:40 +02:00
Implement '&&' and '||' operators on map
'-' is a valid character for tags.
Commit 03e1c7d (module/network: Add link stats, 2022-04-30) introduced
two new tags for the network module: `ul-speed` and `dl-speed`. These
use the `-` character, that was previously never used in any tag.
We had two options: either change those tags to use `_` instead, or just
accept `-`s as a valid character. Going forward, I can see many people
deciding to name their tags with `-` instead of `_`, so I believe it is
better to just accept it once and for all.
Note that `-` cannot be used as the first character of a tag (e.g.
`-tag1`) since the `-` has a special meaning in `.yml` files. I don't
believe this will happen often, however, and should be easy to both
detect and correct if it does.
This commit is contained in:
Leonardo Gibrowski Faé
parent
463b39b56d
commit
4a41d4296a
10 changed files with 330 additions and 226 deletions
264
particles/map.c
264
particles/map.c
|
|
@ -11,38 +11,7 @@
|
|||
#include "../plugin.h"
|
||||
#include "dynlist.h"
|
||||
|
||||
enum map_op{
|
||||
MAP_OP_EQ,
|
||||
MAP_OP_NE,
|
||||
MAP_OP_LE,
|
||||
MAP_OP_LT,
|
||||
MAP_OP_GE,
|
||||
MAP_OP_GT,
|
||||
/* The next two are for bool types */
|
||||
MAP_OP_SELF,
|
||||
MAP_OP_NOT,
|
||||
};
|
||||
|
||||
struct map_condition {
|
||||
char *tag;
|
||||
enum map_op op;
|
||||
char *value;
|
||||
};
|
||||
|
||||
static char *
|
||||
trim(char *s)
|
||||
{
|
||||
while (*s == ' ')
|
||||
s++;
|
||||
|
||||
char *end = s + strlen(s) - 1;
|
||||
while (*end == ' ') {
|
||||
*end = '\0';
|
||||
end--;
|
||||
}
|
||||
|
||||
return s;
|
||||
}
|
||||
#include "map.h"
|
||||
|
||||
bool
|
||||
int_condition(const long tag_value, const long cond_value, enum map_op op)
|
||||
|
|
@ -54,6 +23,7 @@ int_condition(const long tag_value, const long cond_value, enum map_op op)
|
|||
case MAP_OP_LT: return tag_value < cond_value;
|
||||
case MAP_OP_GE: return tag_value >= cond_value;
|
||||
case MAP_OP_GT: return tag_value > cond_value;
|
||||
case MAP_OP_SELF: LOG_WARN("using int tag as bool");
|
||||
default: return false;
|
||||
}
|
||||
}
|
||||
|
|
@ -68,6 +38,7 @@ float_condition(const double tag_value, const double cond_value, enum map_op op)
|
|||
case MAP_OP_LT: return tag_value < cond_value;
|
||||
case MAP_OP_GE: return tag_value >= cond_value;
|
||||
case MAP_OP_GT: return tag_value > cond_value;
|
||||
case MAP_OP_SELF: LOG_WARN("using float tag as bool");
|
||||
default: return false;
|
||||
}
|
||||
}
|
||||
|
|
@ -82,12 +53,13 @@ str_condition(const char* tag_value, const char* cond_value, enum map_op op)
|
|||
case MAP_OP_LT: return strcmp(tag_value, cond_value) < 0;
|
||||
case MAP_OP_GE: return strcmp(tag_value, cond_value) >= 0;
|
||||
case MAP_OP_GT: return strcmp(tag_value, cond_value) > 0;
|
||||
case MAP_OP_SELF: LOG_WARN("using String tag as bool");
|
||||
default: return false;
|
||||
}
|
||||
}
|
||||
|
||||
bool
|
||||
eval_map_condition(const struct map_condition* map_cond, const struct tag_set *tags)
|
||||
eval_comparison(const struct map_condition* map_cond, const struct tag_set *tags)
|
||||
{
|
||||
const struct tag *tag = tag_for_name(tags, map_cond->tag);
|
||||
if (tag == NULL) {
|
||||
|
|
@ -131,8 +103,6 @@ eval_map_condition(const struct map_condition* map_cond, const struct tag_set *t
|
|||
case TAG_TYPE_BOOL:
|
||||
if (map_cond->op == MAP_OP_SELF)
|
||||
return tag->as_bool(tag);
|
||||
else if (map_cond->op == MAP_OP_NOT)
|
||||
return !tag->as_bool(tag);
|
||||
else {
|
||||
LOG_WARN("boolean tag '%s' should be used directly", map_cond->tag);
|
||||
return false;
|
||||
|
|
@ -145,86 +115,43 @@ eval_map_condition(const struct map_condition* map_cond, const struct tag_set *t
|
|||
return false;
|
||||
}
|
||||
|
||||
struct map_condition*
|
||||
map_condition_from_str(const char *str)
|
||||
bool
|
||||
eval_map_condition(const struct map_condition* map_cond, const struct tag_set *tags)
|
||||
{
|
||||
struct map_condition *cond = malloc(sizeof(*cond));
|
||||
|
||||
/* This strdup is just to discard the 'const' qualifier */
|
||||
char *str_cpy = strdup(str);
|
||||
char *op_str = strpbrk(str_cpy, "=!<>~");
|
||||
|
||||
/* we've already checked things in the verify functions, so these should all work */
|
||||
char *tag = str_cpy;
|
||||
char *value = NULL;
|
||||
|
||||
if (op_str == NULL) {
|
||||
cond->tag = strdup(trim(tag));
|
||||
cond->op = MAP_OP_SELF;
|
||||
cond->value = NULL;
|
||||
free(str_cpy);
|
||||
return cond;
|
||||
switch(map_cond->op)
|
||||
{
|
||||
case MAP_OP_NOT: return !eval_map_condition(map_cond->cond1, tags);
|
||||
case MAP_OP_AND: return eval_map_condition(map_cond->cond1, tags) && eval_map_condition(map_cond->cond2, tags);
|
||||
case MAP_OP_OR: return eval_map_condition(map_cond->cond1, tags) || eval_map_condition(map_cond->cond2, tags);
|
||||
default: return eval_comparison(map_cond, tags);
|
||||
}
|
||||
|
||||
switch (op_str[0]) {
|
||||
case '=':
|
||||
cond->op = MAP_OP_EQ;
|
||||
value = op_str + 2;
|
||||
break;
|
||||
case '!':
|
||||
cond->op = MAP_OP_NE;
|
||||
value = op_str + 2;
|
||||
break;
|
||||
case '<':
|
||||
if (op_str[1] == '=') {
|
||||
cond->op = MAP_OP_LE;
|
||||
value = op_str + 2;
|
||||
} else {
|
||||
cond->op = MAP_OP_LT;
|
||||
value = op_str + 1;
|
||||
}
|
||||
break;
|
||||
case '>':
|
||||
if (op_str[1] == '=') {
|
||||
cond->op = MAP_OP_GE;
|
||||
value = op_str + 2;
|
||||
} else {
|
||||
cond->op = MAP_OP_GT;
|
||||
value = op_str + 1;
|
||||
}
|
||||
break;
|
||||
case '~':
|
||||
tag = op_str + 1;
|
||||
cond->op = MAP_OP_NOT;
|
||||
break;
|
||||
}
|
||||
|
||||
/* NULL terminate the tag value */
|
||||
op_str[0] = '\0';
|
||||
|
||||
cond->tag = strdup(trim(tag));
|
||||
|
||||
cond->value = NULL;
|
||||
if (value != NULL) {
|
||||
value = trim(value);
|
||||
const size_t value_len = strlen(value);
|
||||
if (value[0] == '"' && value[value_len - 1] == '"') {
|
||||
value[value_len - 1] = '\0';
|
||||
++value;
|
||||
}
|
||||
cond->value = strdup(value);
|
||||
}
|
||||
|
||||
free(str_cpy);
|
||||
return cond;
|
||||
}
|
||||
|
||||
void
|
||||
free_map_condition(struct map_condition* mc)
|
||||
free_map_condition(struct map_condition* c)
|
||||
{
|
||||
free(mc->tag);
|
||||
free(mc->value);
|
||||
free(mc);
|
||||
switch (c->op)
|
||||
{
|
||||
case MAP_OP_EQ:
|
||||
case MAP_OP_NE:
|
||||
case MAP_OP_LE:
|
||||
case MAP_OP_LT:
|
||||
case MAP_OP_GE:
|
||||
case MAP_OP_GT:
|
||||
free(c->value);
|
||||
/* FALLTHROUGH */
|
||||
case MAP_OP_SELF:
|
||||
free(c->tag);
|
||||
break;
|
||||
case MAP_OP_AND:
|
||||
case MAP_OP_OR:
|
||||
free_map_condition(c->cond2);
|
||||
/* FALLTHROUGH */
|
||||
case MAP_OP_NOT:
|
||||
free_map_condition(c->cond1);
|
||||
break;
|
||||
}
|
||||
free(c);
|
||||
}
|
||||
|
||||
struct particle_map {
|
||||
|
|
@ -379,101 +306,6 @@ map_new(struct particle *common, const struct particle_map particle_map[],
|
|||
return common;
|
||||
}
|
||||
|
||||
static bool
|
||||
verify_map_condition_syntax(keychain_t *chain, const struct yml_node *node,
|
||||
const char *line)
|
||||
{
|
||||
/* We need this strdup to discard the 'const' qualifier */
|
||||
char *cond = strdup(line);
|
||||
char *op_str = strpbrk(cond, " =!<>~");
|
||||
if (op_str == NULL) {
|
||||
char *tag = trim(cond);
|
||||
if (tag[0] == '\0')
|
||||
goto syntax_fail_missing_tag;
|
||||
|
||||
free(cond);
|
||||
return true;
|
||||
}
|
||||
op_str = trim(op_str);
|
||||
|
||||
char *tag = cond;
|
||||
char *value = NULL;
|
||||
|
||||
switch (op_str[0]) {
|
||||
case '=':
|
||||
if (op_str[1] != '=')
|
||||
goto syntax_fail_invalid_op;
|
||||
|
||||
value = op_str + 2;
|
||||
break;
|
||||
|
||||
case '!':
|
||||
if (op_str[1] != '=')
|
||||
goto syntax_fail_invalid_op;
|
||||
|
||||
value = op_str + 2;
|
||||
break;
|
||||
|
||||
case '<':
|
||||
if (op_str[1] == '=')
|
||||
value = op_str + 2;
|
||||
else
|
||||
value = op_str + 1;
|
||||
break;
|
||||
|
||||
case '>':
|
||||
if (op_str[1] == '=')
|
||||
value = op_str + 2;
|
||||
else
|
||||
value = op_str + 1;
|
||||
break;
|
||||
|
||||
case '~':
|
||||
tag = op_str + 1;
|
||||
if (strpbrk(tag, " =!<>~") != NULL)
|
||||
goto syntax_fail_bad_not;
|
||||
value = NULL;
|
||||
break;
|
||||
default:
|
||||
goto syntax_fail_invalid_op;
|
||||
}
|
||||
|
||||
/* NULL terminate the tag value */
|
||||
op_str[0] = '\0';
|
||||
|
||||
tag = trim(tag);
|
||||
if (tag[0] == '\0')
|
||||
goto syntax_fail_missing_tag;
|
||||
|
||||
value = value != NULL ? trim(value) : NULL;
|
||||
|
||||
if (value != NULL && value[0] == '\0')
|
||||
goto syntax_fail_missing_value;
|
||||
|
||||
free(cond);
|
||||
return true;
|
||||
|
||||
syntax_fail_invalid_op:
|
||||
LOG_ERR("%s: \"%s\" invalid operator", conf_err_prefix(chain, node), line);
|
||||
goto err;
|
||||
|
||||
syntax_fail_missing_tag:
|
||||
LOG_ERR("%s: \"%s\" missing tag", conf_err_prefix(chain, node), line);
|
||||
goto err;
|
||||
|
||||
syntax_fail_missing_value:
|
||||
LOG_ERR("%s: \"%s\" missing value", conf_err_prefix(chain, node), line);
|
||||
goto err;
|
||||
|
||||
syntax_fail_bad_not:
|
||||
LOG_ERR("%s: \"%s\" '~' cannot be used with other operators",
|
||||
conf_err_prefix(chain, node), line);
|
||||
goto err;
|
||||
|
||||
err:
|
||||
free(cond);
|
||||
return false;
|
||||
}
|
||||
|
||||
static bool
|
||||
verify_map_conditions(keychain_t *chain, const struct yml_node *node)
|
||||
|
|
@ -485,6 +317,7 @@ verify_map_conditions(keychain_t *chain, const struct yml_node *node)
|
|||
return false;
|
||||
}
|
||||
|
||||
bool result = true;
|
||||
for (struct yml_dict_iter it = yml_dict_iter(node);
|
||||
it.key != NULL;
|
||||
yml_dict_next(&it))
|
||||
|
|
@ -494,9 +327,16 @@ verify_map_conditions(keychain_t *chain, const struct yml_node *node)
|
|||
LOG_ERR("%s: key must be a string", conf_err_prefix(chain, it.key));
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!verify_map_condition_syntax(chain, it.key, key))
|
||||
return false;
|
||||
char *key_clone = strdup(key);
|
||||
YY_BUFFER_STATE buffer = yy_scan_string(key_clone);
|
||||
if (yyparse() != 0) {
|
||||
LOG_ERR("%s: %s", conf_err_prefix(chain, it.key), MAP_PARSER_ERROR_MSG);
|
||||
free(MAP_PARSER_ERROR_MSG);
|
||||
result = false;
|
||||
} else
|
||||
free_map_condition(MAP_CONDITION_PARSE_RESULT);
|
||||
yy_delete_buffer(buffer);
|
||||
free(key_clone);
|
||||
|
||||
if (!conf_verify_particle(chain_push(chain, key), it.value))
|
||||
return false;
|
||||
|
|
@ -504,7 +344,7 @@ verify_map_conditions(keychain_t *chain, const struct yml_node *node)
|
|||
chain_pop(chain);
|
||||
}
|
||||
|
||||
return true;
|
||||
return result;
|
||||
}
|
||||
|
||||
static struct particle *
|
||||
|
|
@ -526,7 +366,13 @@ from_conf(const struct yml_node *node, struct particle *common)
|
|||
it.key != NULL;
|
||||
yml_dict_next(&it), idx++)
|
||||
{
|
||||
particle_map[idx].condition = map_condition_from_str(yml_value_as_string(it.key));
|
||||
/* Note we can skip the error checking here */
|
||||
char *key_clone = strdup(yml_value_as_string(it.key));
|
||||
YY_BUFFER_STATE buffer = yy_scan_string(key_clone);
|
||||
yyparse();
|
||||
particle_map[idx].condition = MAP_CONDITION_PARSE_RESULT;
|
||||
yy_delete_buffer(buffer);
|
||||
free(key_clone);
|
||||
particle_map[idx].particle = conf_to_particle(it.value, inherited);
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue