1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2016, Olivier MATZ <zer0@droids-corp.org>
13 #include <ecoli_malloc.h>
14 #include <ecoli_log.h>
15 #include <ecoli_test.h>
16 #include <ecoli_strvec.h>
17 #include <ecoli_node.h>
18 #include <ecoli_parse.h>
19 #include <ecoli_complete.h>
20 #include <ecoli_node_str.h>
21 #include <ecoli_node_option.h>
22 #include <ecoli_node_or.h>
23 #include <ecoli_node_many.h>
24 #include <ecoli_node_seq.h>
26 EC_LOG_TYPE_REGISTER(node_seq);
30 struct ec_node **table;
35 ec_node_seq_parse(const struct ec_node *gen_node,
36 struct ec_parse *state,
37 const struct ec_strvec *strvec)
39 struct ec_node_seq *node = (struct ec_node_seq *)gen_node;
40 struct ec_strvec *childvec = NULL;
45 for (i = 0; i < node->len; i++) {
46 childvec = ec_strvec_ndup(strvec, len,
47 ec_strvec_len(strvec) - len);
51 ret = ec_node_parse_child(node->table[i], state, childvec);
55 ec_strvec_free(childvec);
58 if (ret == EC_PARSE_NOMATCH) {
59 ec_parse_free_children(state);
60 return EC_PARSE_NOMATCH;
69 ec_strvec_free(childvec);
74 __ec_node_seq_complete(struct ec_node **table, size_t table_len,
76 const struct ec_strvec *strvec)
78 struct ec_parse *parse = ec_comp_get_state(comp);
79 struct ec_strvec *childvec = NULL;
87 * Example of completion for a sequence node = [n1,n2] and an
90 * result = complete(n1, [a,b,c,d]) +
91 * complete(n2, [b,c,d]) if n1 matches [a] +
92 * complete(n2, [c,d]) if n1 matches [a,b] +
93 * complete(n2, [d]) if n1 matches [a,b,c] +
94 * complete(n2, []) if n1 matches [a,b,c,d]
97 /* first, try to complete with the first node of the table */
98 ret = ec_node_complete_child(table[0], comp, strvec);
102 /* then, if the first node of the table matches the beginning of the
103 * strvec, try to complete the rest */
104 for (i = 0; i < ec_strvec_len(strvec); i++) {
105 childvec = ec_strvec_ndup(strvec, 0, i);
106 if (childvec == NULL)
109 ret = ec_node_parse_child(table[0], parse, childvec);
113 ec_strvec_free(childvec);
116 if ((unsigned int)ret != i) {
117 if (ret != EC_PARSE_NOMATCH)
118 ec_parse_del_last_child(parse);
122 childvec = ec_strvec_ndup(strvec, i, ec_strvec_len(strvec) - i);
123 if (childvec == NULL) {
124 ec_parse_del_last_child(parse);
128 ret = __ec_node_seq_complete(&table[1],
131 ec_parse_del_last_child(parse);
132 ec_strvec_free(childvec);
142 ec_strvec_free(childvec);
147 ec_node_seq_complete(const struct ec_node *gen_node,
148 struct ec_comp *comp,
149 const struct ec_strvec *strvec)
151 struct ec_node_seq *node = (struct ec_node_seq *)gen_node;
153 return __ec_node_seq_complete(node->table, node->len, comp,
157 static void ec_node_seq_free_priv(struct ec_node *gen_node)
159 struct ec_node_seq *node = (struct ec_node_seq *)gen_node;
161 ec_free(node->table);
165 ec_node_seq_get_children_count(const struct ec_node *gen_node)
167 struct ec_node_seq *node = (struct ec_node_seq *)gen_node;
171 static struct ec_node *
172 ec_node_seq_get_child(const struct ec_node *gen_node, size_t i)
174 struct ec_node_seq *node = (struct ec_node_seq *)gen_node;
179 return node->table[i];
182 static struct ec_node_type ec_node_seq_type = {
184 .parse = ec_node_seq_parse,
185 .complete = ec_node_seq_complete,
186 .size = sizeof(struct ec_node_seq),
187 .free_priv = ec_node_seq_free_priv,
188 .get_children_count = ec_node_seq_get_children_count,
189 .get_child = ec_node_seq_get_child,
192 EC_NODE_TYPE_REGISTER(ec_node_seq_type);
194 int ec_node_seq_add(struct ec_node *gen_node, struct ec_node *child)
196 struct ec_node_seq *node = (struct ec_node_seq *)gen_node;
197 struct ec_node **table;
199 assert(node != NULL);
206 if (ec_node_check_type(gen_node, &ec_node_seq_type) < 0)
209 table = ec_realloc(node->table, (node->len + 1) * sizeof(*node->table));
214 table[node->len] = child;
224 struct ec_node *__ec_node_seq(const char *id, ...)
226 struct ec_node *gen_node = NULL;
227 struct ec_node_seq *node = NULL;
228 struct ec_node *child;
234 gen_node = __ec_node(&ec_node_seq_type, id);
235 node = (struct ec_node_seq *)gen_node;
239 for (child = va_arg(ap, struct ec_node *);
240 child != EC_NODE_ENDLIST;
241 child = va_arg(ap, struct ec_node *)) {
243 /* on error, don't quit the loop to avoid leaks */
244 if (fail == 1 || child == NULL ||
245 ec_node_seq_add(&node->gen, child) < 0) {
258 ec_node_free(gen_node); /* will also free children */
263 /* LCOV_EXCL_START */
264 static int ec_node_seq_testcase(void)
266 struct ec_node *node = NULL;
269 node = EC_NODE_SEQ(EC_NO_ID,
270 ec_node_str(EC_NO_ID, "foo"),
271 ec_node_str(EC_NO_ID, "bar")
274 EC_LOG(EC_LOG_ERR, "cannot create node\n");
277 testres |= EC_TEST_CHECK_PARSE(node, 2, "foo", "bar");
278 testres |= EC_TEST_CHECK_PARSE(node, 2, "foo", "bar", "toto");
279 testres |= EC_TEST_CHECK_PARSE(node, -1, "foo");
280 testres |= EC_TEST_CHECK_PARSE(node, -1, "foox", "bar");
281 testres |= EC_TEST_CHECK_PARSE(node, -1, "foo", "barx");
282 testres |= EC_TEST_CHECK_PARSE(node, -1, "bar", "foo");
283 testres |= EC_TEST_CHECK_PARSE(node, -1, "", "foo");
286 /* test completion */
287 node = EC_NODE_SEQ(EC_NO_ID,
288 ec_node_str(EC_NO_ID, "foo"),
289 ec_node_option(EC_NO_ID, ec_node_str(EC_NO_ID, "toto")),
290 ec_node_str(EC_NO_ID, "bar")
293 EC_LOG(EC_LOG_ERR, "cannot create node\n");
296 testres |= EC_TEST_CHECK_COMPLETE(node,
298 "foo", EC_NODE_ENDLIST);
299 testres |= EC_TEST_CHECK_COMPLETE(node,
300 "f", EC_NODE_ENDLIST,
301 "foo", EC_NODE_ENDLIST);
302 testres |= EC_TEST_CHECK_COMPLETE(node,
303 "foo", EC_NODE_ENDLIST,
304 "foo", EC_NODE_ENDLIST);
305 testres |= EC_TEST_CHECK_COMPLETE(node,
306 "foo", "", EC_NODE_ENDLIST,
307 "bar", "toto", EC_NODE_ENDLIST);
308 testres |= EC_TEST_CHECK_COMPLETE(node,
309 "foo", "t", EC_NODE_ENDLIST,
310 "toto", EC_NODE_ENDLIST);
311 testres |= EC_TEST_CHECK_COMPLETE(node,
312 "foo", "b", EC_NODE_ENDLIST,
313 "bar", EC_NODE_ENDLIST);
314 testres |= EC_TEST_CHECK_COMPLETE(node,
315 "foo", "bar", EC_NODE_ENDLIST,
316 "bar", EC_NODE_ENDLIST);
317 testres |= EC_TEST_CHECK_COMPLETE(node,
318 "x", EC_NODE_ENDLIST,
320 testres |= EC_TEST_CHECK_COMPLETE(node,
321 "foobarx", EC_NODE_ENDLIST,
329 static struct ec_test ec_node_seq_test = {
331 .test = ec_node_seq_testcase,
334 EC_TEST_REGISTER(ec_node_seq_test);