--- /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_or.h>
+#include <ecoli_node_many.h>
+#include <ecoli_config.h>
+#include <ecoli_node_once.h>
+
+EC_LOG_TYPE_REGISTER(node_once);
+
+struct ec_node_once {
+ struct ec_node gen;
+ struct ec_node *child;
+};
+
+static unsigned int
+count_node(struct ec_parse *parse, const struct ec_node *node)
+{
+ struct ec_parse *child;
+ unsigned int count = 0;
+
+ if (parse == NULL)
+ return 0;
+
+ if (ec_parse_get_node(parse) == node)
+ count++;
+
+ EC_PARSE_FOREACH_CHILD(child, parse)
+ count += count_node(child, node);
+
+ return count;
+}
+
+static int
+ec_node_once_parse(const struct ec_node *gen_node,
+ struct ec_parse *state,
+ const struct ec_strvec *strvec)
+{
+ struct ec_node_once *node = (struct ec_node_once *)gen_node;
+ unsigned int count;
+
+ /* count the number of occurences of the node: if already parsed,
+ * do not match
+ */
+ count = count_node(ec_parse_get_root(state), node->child);
+ if (count > 0)
+ return EC_PARSE_NOMATCH;
+
+ return ec_node_parse_child(node->child, state, strvec);
+}
+
+static int
+ec_node_once_complete(const struct ec_node *gen_node,
+ struct ec_comp *comp,
+ const struct ec_strvec *strvec)
+{
+ struct ec_node_once *node = (struct ec_node_once *)gen_node;
+ struct ec_parse *parse = ec_comp_get_state(comp);
+ unsigned int count;
+ int ret;
+
+ /* count the number of occurences of the node: if already parsed,
+ * do not match
+ */
+ count = count_node(ec_parse_get_root(parse), node->child);
+ if (count > 0)
+ return 0;
+
+ ret = ec_node_complete_child(node->child, comp, strvec);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static void ec_node_once_free_priv(struct ec_node *gen_node)
+{
+ struct ec_node_once *node = (struct ec_node_once *)gen_node;
+
+ ec_node_free(node->child);
+}
+
+static size_t
+ec_node_once_get_children_count(const struct ec_node *gen_node)
+{
+ struct ec_node_once *node = (struct ec_node_once *)gen_node;
+
+ if (node->child)
+ return 1;
+ return 0;
+}
+
+static int
+ec_node_once_get_child(const struct ec_node *gen_node, size_t i,
+ struct ec_node **child, unsigned int *refs)
+{
+ struct ec_node_once *node = (struct ec_node_once *)gen_node;
+
+ if (i >= 1)
+ return -1;
+
+ *child = node->child;
+ *refs = 2;
+ return 0;
+}
+
+static const struct ec_config_schema ec_node_once_schema[] = {
+ {
+ .key = "child",
+ .desc = "The child node.",
+ .type = EC_CONFIG_TYPE_NODE,
+ },
+ {
+ .type = EC_CONFIG_TYPE_NONE,
+ },
+};
+
+static int ec_node_once_set_config(struct ec_node *gen_node,
+ const struct ec_config *config)
+{
+ struct ec_node_once *node = (struct ec_node_once *)gen_node;
+ const struct ec_config *child;
+
+ 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;
+ }
+
+ if (node->child != NULL)
+ ec_node_free(node->child);
+ node->child = ec_node_clone(child->node);
+
+ return 0;
+
+fail:
+ return -1;
+}
+
+static struct ec_node_type ec_node_once_type = {
+ .name = "once",
+ .schema = ec_node_once_schema,
+ .set_config = ec_node_once_set_config,
+ .parse = ec_node_once_parse,
+ .complete = ec_node_once_complete,
+ .size = sizeof(struct ec_node_once),
+ .free_priv = ec_node_once_free_priv,
+ .get_children_count = ec_node_once_get_children_count,
+ .get_child = ec_node_once_get_child,
+};
+
+EC_NODE_TYPE_REGISTER(ec_node_once_type);
+
+int
+ec_node_once_set_child(struct ec_node *gen_node, struct ec_node *child)
+{
+ const struct ec_config *cur_config = NULL;
+ struct ec_config *config = NULL;
+ int ret;
+
+ if (ec_node_check_type(gen_node, &ec_node_once_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 */
+
+ 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_once(const char *id, struct ec_node *child)
+{
+ struct ec_node *gen_node = NULL;
+
+ if (child == NULL)
+ return NULL;
+
+ gen_node = ec_node_from_type(&ec_node_once_type, id);
+ if (gen_node == NULL)
+ goto fail;
+
+ ec_node_once_set_child(gen_node, child);
+ child = NULL;
+
+ return gen_node;
+
+fail:
+ ec_node_free(child);
+ return NULL;
+}
+
+/* LCOV_EXCL_START */
+static int ec_node_once_testcase(void)
+{
+ struct ec_node *node;
+ int testres = 0;
+
+ node = ec_node_many(EC_NO_ID,
+ EC_NODE_OR(EC_NO_ID,
+ ec_node_once(EC_NO_ID, ec_node_str(EC_NO_ID, "foo")),
+ ec_node_str(EC_NO_ID, "bar")
+ ), 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, 1, "foo");
+ testres |= EC_TEST_CHECK_PARSE(node, 1, "bar");
+ testres |= EC_TEST_CHECK_PARSE(node, 2, "foo", "bar");
+ testres |= EC_TEST_CHECK_PARSE(node, 3, "foo", "bar", "bar");
+ testres |= EC_TEST_CHECK_PARSE(node, 3, "bar", "foo", "bar");
+ testres |= EC_TEST_CHECK_PARSE(node, 2, "bar", "foo", "foo");
+ testres |= EC_TEST_CHECK_PARSE(node, 1, "foo", "foo");
+ testres |= EC_TEST_CHECK_PARSE(node, 0, "foox");
+
+ testres |= EC_TEST_CHECK_COMPLETE(node,
+ "", EC_NODE_ENDLIST,
+ "foo", "bar", EC_NODE_ENDLIST);
+ testres |= EC_TEST_CHECK_COMPLETE(node,
+ "f", EC_NODE_ENDLIST,
+ "foo", EC_NODE_ENDLIST);
+ testres |= EC_TEST_CHECK_COMPLETE(node,
+ "b", EC_NODE_ENDLIST,
+ "bar", EC_NODE_ENDLIST);
+ testres |= EC_TEST_CHECK_COMPLETE(node,
+ "foo", "", EC_NODE_ENDLIST,
+ "bar", EC_NODE_ENDLIST);
+ testres |= EC_TEST_CHECK_COMPLETE(node,
+ "bar", "", EC_NODE_ENDLIST,
+ "foo", "bar", EC_NODE_ENDLIST);
+ ec_node_free(node);
+
+ return testres;
+}
+/* LCOV_EXCL_STOP */
+
+static struct ec_test ec_node_once_test = {
+ .name = "node_once",
+ .test = ec_node_once_testcase,
+};
+
+EC_TEST_REGISTER(ec_node_once_test);
git.droids-corp.org / protos / libecoli.git / blobdiff