--- /dev/null
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2016, Olivier MATZ <zer0@droids-corp.org>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <stdarg.h>
+#include <errno.h>
+
+#include <ecoli_malloc.h>
+#include <ecoli_log.h>
+#include <ecoli_test.h>
+#include <ecoli_strvec.h>
+#include <ecoli_node.h>
+#include <ecoli_parse.h>
+#include <ecoli_complete.h>
+#include <ecoli_node_str.h>
+#include <ecoli_node_option.h>
+#include <ecoli_config.h>
+#include <ecoli_node_many.h>
+
+EC_LOG_TYPE_REGISTER(node_many);
+
+struct ec_node_many {
+ struct ec_node gen;
+ unsigned int min;
+ unsigned int max;
+ struct ec_node *child;
+};
+
+static int ec_node_many_parse(const struct ec_node *gen_node,
+ struct ec_parse *state,
+ const struct ec_strvec *strvec)
+{
+ struct ec_node_many *node = (struct ec_node_many *)gen_node;
+ struct ec_parse *child_parse;
+ struct ec_strvec *childvec = NULL;
+ size_t off = 0, count;
+ int ret;
+
+ for (count = 0; node->max == 0 || count < node->max; count++) {
+ childvec = ec_strvec_ndup(strvec, off,
+ ec_strvec_len(strvec) - off);
+ if (childvec == NULL)
+ goto fail;
+
+ ret = ec_node_parse_child(node->child, state, childvec);
+ if (ret < 0)
+ goto fail;
+
+ ec_strvec_free(childvec);
+ childvec = NULL;
+
+ if (ret == EC_PARSE_NOMATCH)
+ break;
+
+ /* it matches an empty strvec, no need to continue */
+ if (ret == 0) {
+ child_parse = ec_parse_get_last_child(state);
+ ec_parse_unlink_child(state, child_parse);
+ ec_parse_free(child_parse);
+ break;
+ }
+
+ off += ret;
+ }
+
+ if (count < node->min) {
+ ec_parse_free_children(state);
+ return EC_PARSE_NOMATCH;
+ }
+
+ return off;
+
+fail:
+ ec_strvec_free(childvec);
+ return -1;
+}
+
+static int
+__ec_node_many_complete(struct ec_node_many *node, unsigned int max,
+ struct ec_comp *comp,
+ const struct ec_strvec *strvec)
+{
+ struct ec_parse *parse = ec_comp_get_state(comp);
+ struct ec_strvec *childvec = NULL;
+ unsigned int i;
+ int ret;
+
+ /* first, try to complete with the child node */
+ ret = ec_node_complete_child(node->child, comp, strvec);
+ if (ret < 0)
+ goto fail;
+
+ /* we're done, we reached the max number of nodes */
+ if (max == 1)
+ return 0;
+
+ /* if there is a maximum, decrease it before recursion */
+ if (max != 0)
+ max--;
+
+ /* then, if the node matches the beginning of the strvec, try to
+ * complete the rest */
+ for (i = 0; i < ec_strvec_len(strvec); i++) {
+ childvec = ec_strvec_ndup(strvec, 0, i);
+ if (childvec == NULL)
+ goto fail;
+
+ ret = ec_node_parse_child(node->child, parse, childvec);
+ if (ret < 0)
+ goto fail;
+
+ ec_strvec_free(childvec);
+ childvec = NULL;
+
+ if ((unsigned int)ret != i) {
+ if (ret != EC_PARSE_NOMATCH)
+ ec_parse_del_last_child(parse);
+ continue;
+ }
+
+ childvec = ec_strvec_ndup(strvec, i, ec_strvec_len(strvec) - i);
+ if (childvec == NULL) {
+ ec_parse_del_last_child(parse);
+ goto fail;
+ }
+
+ ret = __ec_node_many_complete(node, max, comp, childvec);
+ ec_parse_del_last_child(parse);
+ ec_strvec_free(childvec);
+ childvec = NULL;
+
+ if (ret < 0)
+ goto fail;
+ }
+
+ return 0;
+
+fail:
+ ec_strvec_free(childvec);
+ return -1;
+}
+
+static int
+ec_node_many_complete(const struct ec_node *gen_node,
+ struct ec_comp *comp,
+ const struct ec_strvec *strvec)
+{
+ struct ec_node_many *node = (struct ec_node_many *)gen_node;
+
+ return __ec_node_many_complete(node, node->max, comp,
+ strvec);
+}
+
+static void ec_node_many_free_priv(struct ec_node *gen_node)
+{
+ struct ec_node_many *node = (struct ec_node_many *)gen_node;
+
+ ec_node_free(node->child);
+}
+
+static size_t
+ec_node_many_get_children_count(const struct ec_node *gen_node)
+{
+ struct ec_node_many *node = (struct ec_node_many *)gen_node;
+
+ if (node->child)
+ return 1;
+ return 0;
+}
+
+static int
+ec_node_many_get_child(const struct ec_node *gen_node, size_t i,
+ struct ec_node **child, unsigned int *refs)
+{
+ struct ec_node_many *node = (struct ec_node_many *)gen_node;
+
+ if (i >= 1)
+ return -1;
+
+ *child = node->child;
+ *refs = 2;
+ return 0;
+}
+
+static const struct ec_config_schema ec_node_many_schema[] = {
+ {
+ .key = "child",
+ .desc = "The child node.",
+ .type = EC_CONFIG_TYPE_NODE,
+ },
+ {
+ .key = "min",
+ .desc = "The minimum number of matches (default = 0).",
+ .type = EC_CONFIG_TYPE_UINT64,
+ },
+ {
+ .key = "max",
+ .desc = "The maximum number of matches. If 0, there is "
+ "no maximum (default = 0).",
+ .type = EC_CONFIG_TYPE_UINT64,
+ },
+ {
+ .type = EC_CONFIG_TYPE_NONE,
+ },
+};
+
+static int ec_node_many_set_config(struct ec_node *gen_node,
+ const struct ec_config *config)
+{
+ struct ec_node_many *node = (struct ec_node_many *)gen_node;
+ const struct ec_config *child, *min, *max;
+
+ child = ec_config_dict_get(config, "child");
+ if (child == NULL)
+ goto fail;
+ if (ec_config_get_type(child) != EC_CONFIG_TYPE_NODE) {
+ errno = EINVAL;
+ goto fail;
+ }
+ min = ec_config_dict_get(config, "min");
+ if (min != NULL && (ec_config_get_type(min) != EC_CONFIG_TYPE_UINT64 ||
+ min->u64 >= UINT_MAX)) {
+ errno = EINVAL;
+ goto fail;
+ }
+ max = ec_config_dict_get(config, "max");
+ if (max != NULL && (ec_config_get_type(max) != EC_CONFIG_TYPE_UINT64 ||
+ max->u64 >= UINT_MAX)) {
+ errno = EINVAL;
+ goto fail;
+ }
+
+ if (node->child != NULL)
+ ec_node_free(node->child);
+ node->child = ec_node_clone(child->node);
+ if (min == NULL)
+ node->min = 0;
+ else
+ node->min = min->u64;
+ if (max == NULL)
+ node->max = 0;
+ else
+ node->max = max->u64;
+
+ return 0;
+
+fail:
+ return -1;
+}
+
+static struct ec_node_type ec_node_many_type = {
+ .name = "many",
+ .schema = ec_node_many_schema,
+ .set_config = ec_node_many_set_config,
+ .parse = ec_node_many_parse,
+ .complete = ec_node_many_complete,
+ .size = sizeof(struct ec_node_many),
+ .free_priv = ec_node_many_free_priv,
+ .get_children_count = ec_node_many_get_children_count,
+ .get_child = ec_node_many_get_child,
+};
+
+EC_NODE_TYPE_REGISTER(ec_node_many_type);
+
+int
+ec_node_many_set_params(struct ec_node *gen_node, struct ec_node *child,
+ unsigned int min, unsigned int max)
+{
+ const struct ec_config *cur_config = NULL;
+ struct ec_config *config = NULL;
+ int ret;
+
+ if (ec_node_check_type(gen_node, &ec_node_many_type) < 0)
+ goto fail;
+
+ cur_config = ec_node_get_config(gen_node);
+ if (cur_config == NULL)
+ config = ec_config_dict();
+ else
+ config = ec_config_dup(cur_config);
+ if (config == NULL)
+ goto fail;
+
+ if (ec_config_dict_set(config, "child", ec_config_node(child)) < 0) {
+ child = NULL; /* freed */
+ goto fail;
+ }
+ child = NULL; /* freed */
+
+ if (ec_config_dict_set(config, "min", ec_config_u64(min)) < 0)
+ goto fail;
+ if (ec_config_dict_set(config, "max", ec_config_u64(max)) < 0)
+ goto fail;
+
+ ret = ec_node_set_config(gen_node, config);
+ config = NULL; /* freed */
+ if (ret < 0)
+ goto fail;
+
+ return 0;
+
+fail:
+ ec_config_free(config);
+ ec_node_free(child);
+ return -1;
+}
+
+struct ec_node *ec_node_many(const char *id, struct ec_node *child,
+ unsigned int min, unsigned int max)
+{
+ struct ec_node *gen_node = NULL;
+
+ if (child == NULL)
+ return NULL;
+
+ gen_node = ec_node_from_type(&ec_node_many_type, id);
+ if (gen_node == NULL)
+ goto fail;
+
+ if (ec_node_many_set_params(gen_node, child, min, max) < 0) {
+ child = NULL;
+ goto fail;
+ }
+ child = NULL;
+
+ return gen_node;
+
+fail:
+ ec_node_free(child);
+ return NULL;
+}
+
+/* LCOV_EXCL_START */
+static int ec_node_many_testcase(void)
+{
+ struct ec_node *node;
+ int testres = 0;
+
+ node = ec_node_many(EC_NO_ID, ec_node_str(EC_NO_ID, "foo"), 0, 0);
+ if (node == NULL) {
+ EC_LOG(EC_LOG_ERR, "cannot create node\n");
+ return -1;
+ }
+ testres |= EC_TEST_CHECK_PARSE(node, 0);
+ testres |= EC_TEST_CHECK_PARSE(node, 0, "bar");
+ testres |= EC_TEST_CHECK_PARSE(node, 1, "foo", "bar");
+ testres |= EC_TEST_CHECK_PARSE(node, 2, "foo", "foo", "bar");
+ testres |= EC_TEST_CHECK_PARSE(node, 0);
+ ec_node_free(node);
+
+ node = ec_node_many(EC_NO_ID, ec_node_str(EC_NO_ID, "foo"), 1, 0);
+ if (node == NULL) {
+ EC_LOG(EC_LOG_ERR, "cannot create node\n");
+ return -1;
+ }
+ testres |= EC_TEST_CHECK_PARSE(node, -1, "bar");
+ testres |= EC_TEST_CHECK_PARSE(node, 1, "foo", "bar");
+ testres |= EC_TEST_CHECK_PARSE(node, 2, "foo", "foo", "bar");
+ testres |= EC_TEST_CHECK_PARSE(node, -1);
+ ec_node_free(node);
+
+ node = ec_node_many(EC_NO_ID, ec_node_str(EC_NO_ID, "foo"), 1, 2);
+ if (node == NULL) {
+ EC_LOG(EC_LOG_ERR, "cannot create node\n");
+ return -1;
+ }
+ testres |= EC_TEST_CHECK_PARSE(node, -1, "bar");
+ testres |= EC_TEST_CHECK_PARSE(node, 1, "foo", "bar");
+ testres |= EC_TEST_CHECK_PARSE(node, 2, "foo", "foo", "bar");
+ testres |= EC_TEST_CHECK_PARSE(node, 2, "foo", "foo", "foo");
+ testres |= EC_TEST_CHECK_PARSE(node, -1);
+ ec_node_free(node);
+
+ /* test completion */
+ node = ec_node_many(EC_NO_ID, ec_node_str(EC_NO_ID, "foo"), 2, 4);
+ if (node == NULL) {
+ EC_LOG(EC_LOG_ERR, "cannot create node\n");
+ return -1;
+ }
+ testres |= EC_TEST_CHECK_COMPLETE(node,
+ "", EC_NODE_ENDLIST,
+ "foo", EC_NODE_ENDLIST);
+ testres |= EC_TEST_CHECK_COMPLETE(node,
+ "f", EC_NODE_ENDLIST,
+ "foo", EC_NODE_ENDLIST);
+ testres |= EC_TEST_CHECK_COMPLETE(node,
+ "foo", EC_NODE_ENDLIST,
+ "foo", EC_NODE_ENDLIST);
+ testres |= EC_TEST_CHECK_COMPLETE(node,
+ "foo", "", EC_NODE_ENDLIST,
+ "foo", EC_NODE_ENDLIST);
+ testres |= EC_TEST_CHECK_COMPLETE(node,
+ "foo", "foo", "", EC_NODE_ENDLIST,
+ "foo", EC_NODE_ENDLIST);
+ testres |= EC_TEST_CHECK_COMPLETE(node,
+ "foo", "foo", "foo", "", EC_NODE_ENDLIST,
+ "foo", EC_NODE_ENDLIST);
+ testres |= EC_TEST_CHECK_COMPLETE(node,
+ "foo", "foo", "foo", "foo", "", EC_NODE_ENDLIST,
+ EC_NODE_ENDLIST);
+ ec_node_free(node);
+
+ return testres;
+}
+/* LCOV_EXCL_STOP */
+
+static struct ec_test ec_node_many_test = {
+ .name = "node_many",
+ .test = ec_node_many_testcase,
+};
+
+EC_TEST_REGISTER(ec_node_many_test);
git.droids-corp.org / protos / libecoli.git / blobdiff