1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2016, Olivier MATZ <zer0@droids-corp.org>
12 #include <ecoli_malloc.h>
13 #include <ecoli_log.h>
14 #include <ecoli_test.h>
15 #include <ecoli_strvec.h>
16 #include <ecoli_node.h>
17 #include <ecoli_parse.h>
18 #include <ecoli_complete.h>
19 #include <ecoli_node_str.h>
20 #include <ecoli_node_option.h>
21 #include <ecoli_config.h>
22 #include <ecoli_node_many.h>
24 EC_LOG_TYPE_REGISTER(node_many);
29 struct ec_node *child;
32 static int ec_node_many_parse(const struct ec_node *node,
33 struct ec_pnode *state,
34 const struct ec_strvec *strvec)
36 struct ec_node_many *priv = ec_node_priv(node);
37 struct ec_pnode *child_parse;
38 struct ec_strvec *childvec = NULL;
39 size_t off = 0, count;
42 for (count = 0; priv->max == 0 || count < priv->max; count++) {
43 childvec = ec_strvec_ndup(strvec, off,
44 ec_strvec_len(strvec) - off);
48 ret = ec_parse_child(priv->child, state, childvec);
52 ec_strvec_free(childvec);
55 if (ret == EC_PARSE_NOMATCH)
58 /* it matches an empty strvec, no need to continue */
60 child_parse = ec_pnode_get_last_child(state);
61 ec_pnode_unlink_child(state, child_parse);
62 ec_pnode_free(child_parse);
69 if (count < priv->min) {
70 ec_pnode_free_children(state);
71 return EC_PARSE_NOMATCH;
77 ec_strvec_free(childvec);
82 __ec_node_many_complete(struct ec_node_many *priv, unsigned int max,
84 const struct ec_strvec *strvec)
86 struct ec_pnode *parse = ec_comp_get_state(comp);
87 struct ec_strvec *childvec = NULL;
91 /* first, try to complete with the child node */
92 ret = ec_complete_child(priv->child, comp, strvec);
96 /* we're done, we reached the max number of nodes */
100 /* if there is a maximum, decrease it before recursion */
104 /* then, if the node matches the beginning of the strvec, try to
105 * complete the rest */
106 for (i = 0; i < ec_strvec_len(strvec); i++) {
107 childvec = ec_strvec_ndup(strvec, 0, i);
108 if (childvec == NULL)
111 ret = ec_parse_child(priv->child, parse, childvec);
115 ec_strvec_free(childvec);
118 if ((unsigned int)ret != i) {
119 if (ret != EC_PARSE_NOMATCH)
120 ec_pnode_del_last_child(parse);
124 childvec = ec_strvec_ndup(strvec, i, ec_strvec_len(strvec) - i);
125 if (childvec == NULL) {
126 ec_pnode_del_last_child(parse);
130 ret = __ec_node_many_complete(priv, max, comp, childvec);
131 ec_pnode_del_last_child(parse);
132 ec_strvec_free(childvec);
142 ec_strvec_free(childvec);
147 ec_node_many_complete(const struct ec_node *node,
148 struct ec_comp *comp,
149 const struct ec_strvec *strvec)
151 struct ec_node_many *priv = ec_node_priv(node);
153 return __ec_node_many_complete(priv, priv->max, comp,
157 static void ec_node_many_free_priv(struct ec_node *node)
159 struct ec_node_many *priv = ec_node_priv(node);
161 ec_node_free(priv->child);
165 ec_node_many_get_children_count(const struct ec_node *node)
167 struct ec_node_many *priv = ec_node_priv(node);
175 ec_node_many_get_child(const struct ec_node *node, size_t i,
176 struct ec_node **child, unsigned int *refs)
178 struct ec_node_many *priv = ec_node_priv(node);
183 *child = priv->child;
188 static const struct ec_config_schema ec_node_many_schema[] = {
191 .desc = "The child node.",
192 .type = EC_CONFIG_TYPE_NODE,
196 .desc = "The minimum number of matches (default = 0).",
197 .type = EC_CONFIG_TYPE_UINT64,
201 .desc = "The maximum number of matches. If 0, there is "
202 "no maximum (default = 0).",
203 .type = EC_CONFIG_TYPE_UINT64,
206 .type = EC_CONFIG_TYPE_NONE,
210 static int ec_node_many_set_config(struct ec_node *node,
211 const struct ec_config *config)
213 struct ec_node_many *priv = ec_node_priv(node);
214 const struct ec_config *child, *min, *max;
216 child = ec_config_dict_get(config, "child");
219 if (ec_config_get_type(child) != EC_CONFIG_TYPE_NODE) {
223 min = ec_config_dict_get(config, "min");
224 if (min != NULL && (ec_config_get_type(min) != EC_CONFIG_TYPE_UINT64 ||
225 min->u64 >= UINT_MAX)) {
229 max = ec_config_dict_get(config, "max");
230 if (max != NULL && (ec_config_get_type(max) != EC_CONFIG_TYPE_UINT64 ||
231 max->u64 >= UINT_MAX)) {
236 if (priv->child != NULL)
237 ec_node_free(priv->child);
238 priv->child = ec_node_clone(child->node);
242 priv->min = min->u64;
246 priv->max = max->u64;
254 static struct ec_node_type ec_node_many_type = {
256 .schema = ec_node_many_schema,
257 .set_config = ec_node_many_set_config,
258 .parse = ec_node_many_parse,
259 .complete = ec_node_many_complete,
260 .size = sizeof(struct ec_node_many),
261 .free_priv = ec_node_many_free_priv,
262 .get_children_count = ec_node_many_get_children_count,
263 .get_child = ec_node_many_get_child,
266 EC_NODE_TYPE_REGISTER(ec_node_many_type);
269 ec_node_many_set_params(struct ec_node *node, struct ec_node *child,
270 unsigned int min, unsigned int max)
272 const struct ec_config *cur_config = NULL;
273 struct ec_config *config = NULL;
276 if (ec_node_check_type(node, &ec_node_many_type) < 0)
279 cur_config = ec_node_get_config(node);
280 if (cur_config == NULL)
281 config = ec_config_dict();
283 config = ec_config_dup(cur_config);
287 if (ec_config_dict_set(config, "child", ec_config_node(child)) < 0) {
288 child = NULL; /* freed */
291 child = NULL; /* freed */
293 if (ec_config_dict_set(config, "min", ec_config_u64(min)) < 0)
295 if (ec_config_dict_set(config, "max", ec_config_u64(max)) < 0)
298 ret = ec_node_set_config(node, config);
299 config = NULL; /* freed */
306 ec_config_free(config);
311 struct ec_node *ec_node_many(const char *id, struct ec_node *child,
312 unsigned int min, unsigned int max)
314 struct ec_node *node = NULL;
319 node = ec_node_from_type(&ec_node_many_type, id);
323 if (ec_node_many_set_params(node, child, min, max) < 0) {
337 /* LCOV_EXCL_START */
338 static int ec_node_many_testcase(void)
340 struct ec_node *node;
343 node = ec_node_many(EC_NO_ID, ec_node_str(EC_NO_ID, "foo"), 0, 0);
345 EC_LOG(EC_LOG_ERR, "cannot create node\n");
348 testres |= EC_TEST_CHECK_PARSE(node, 0);
349 testres |= EC_TEST_CHECK_PARSE(node, 0, "bar");
350 testres |= EC_TEST_CHECK_PARSE(node, 1, "foo", "bar");
351 testres |= EC_TEST_CHECK_PARSE(node, 2, "foo", "foo", "bar");
352 testres |= EC_TEST_CHECK_PARSE(node, 0);
355 node = ec_node_many(EC_NO_ID, ec_node_str(EC_NO_ID, "foo"), 1, 0);
357 EC_LOG(EC_LOG_ERR, "cannot create node\n");
360 testres |= EC_TEST_CHECK_PARSE(node, -1, "bar");
361 testres |= EC_TEST_CHECK_PARSE(node, 1, "foo", "bar");
362 testres |= EC_TEST_CHECK_PARSE(node, 2, "foo", "foo", "bar");
363 testres |= EC_TEST_CHECK_PARSE(node, -1);
366 node = ec_node_many(EC_NO_ID, ec_node_str(EC_NO_ID, "foo"), 1, 2);
368 EC_LOG(EC_LOG_ERR, "cannot create node\n");
371 testres |= EC_TEST_CHECK_PARSE(node, -1, "bar");
372 testres |= EC_TEST_CHECK_PARSE(node, 1, "foo", "bar");
373 testres |= EC_TEST_CHECK_PARSE(node, 2, "foo", "foo", "bar");
374 testres |= EC_TEST_CHECK_PARSE(node, 2, "foo", "foo", "foo");
375 testres |= EC_TEST_CHECK_PARSE(node, -1);
378 /* test completion */
379 node = ec_node_many(EC_NO_ID, ec_node_str(EC_NO_ID, "foo"), 2, 4);
381 EC_LOG(EC_LOG_ERR, "cannot create node\n");
384 testres |= EC_TEST_CHECK_COMPLETE(node,
387 testres |= EC_TEST_CHECK_COMPLETE(node,
390 testres |= EC_TEST_CHECK_COMPLETE(node,
393 testres |= EC_TEST_CHECK_COMPLETE(node,
394 "foo", "", EC_VA_END,
396 testres |= EC_TEST_CHECK_COMPLETE(node,
397 "foo", "foo", "", EC_VA_END,
399 testres |= EC_TEST_CHECK_COMPLETE(node,
400 "foo", "foo", "foo", "", EC_VA_END,
402 testres |= EC_TEST_CHECK_COMPLETE(node,
403 "foo", "foo", "foo", "foo", "", EC_VA_END,
411 static struct ec_test ec_node_many_test = {
413 .test = ec_node_many_testcase,
416 EC_TEST_REGISTER(ec_node_many_test);