--- /dev/null
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <errno.h>
+#include <limits.h>
+#include <assert.h>
+
+#include <yaml.h>
+#include <ecoli_node.h>
+#include <ecoli_config.h>
+
+/* associate a yaml node to a ecoli node */
+struct pair {
+ const yaml_node_t *ynode;
+ struct ec_node *enode;
+};
+
+/* store the ecoli node tree and the associations yaml_node <-> ec_node */
+struct enode_tree {
+ struct ec_node *root;
+ struct pair *table;
+ size_t table_len;
+};
+
+static struct ec_node *
+parse_ec_node(struct enode_tree *tree,
+ const yaml_document_t *document, const yaml_node_t *ynode);
+
+static struct ec_config *
+parse_ec_config_list(struct enode_tree *tree,
+ const struct ec_config_schema *schema,
+ const yaml_document_t *document, const yaml_node_t *ynode);
+
+static struct ec_config *
+parse_ec_config_dict(struct enode_tree *tree,
+ const struct ec_config_schema *schema,
+ const yaml_document_t *document, const yaml_node_t *ynode);
+
+/* XXX to utils.c ? */
+static int
+parse_llint(const char *str, int64_t *val)
+{
+ char *endptr;
+ int save_errno = errno;
+
+ errno = 0;
+ *val = strtoll(str, &endptr, 0);
+
+ if ((errno == ERANGE && (*val == LLONG_MAX || *val == LLONG_MIN)) ||
+ (errno != 0 && *val == 0))
+ return -1;
+
+ if (*endptr != 0) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ errno = save_errno;
+ return 0;
+}
+
+static int
+parse_ullint(const char *str, uint64_t *val)
+{
+ char *endptr;
+ int save_errno = errno;
+
+ /* since a negative input is silently converted to a positive
+ * one by strtoull(), first check that it is positive */
+ if (strchr(str, '-'))
+ return -1;
+
+ errno = 0;
+ *val = strtoull(str, &endptr, 0);
+
+ if ((errno == ERANGE && *val == ULLONG_MAX) ||
+ (errno != 0 && *val == 0))
+ return -1;
+
+ if (*endptr != 0)
+ return -1;
+
+ errno = save_errno;
+ return 0;
+}
+
+static int
+parse_bool(const char *str, bool *val)
+{
+ if (!strcasecmp(str, "true")) {
+ *val = true;
+ return 0;
+ } else if (!strcasecmp(str, "false")) {
+ *val = false;
+ return 0;
+ }
+ errno = EINVAL;
+ return -1;
+}
+
+static int
+add_in_table(struct enode_tree *tree, const yaml_node_t *ynode,
+ struct ec_node *enode)
+{
+ struct pair *table = NULL;
+
+ table = realloc(tree->table, (tree->table_len + 1) * sizeof(*table));
+ if (table == NULL)
+ return -1;
+
+ ec_node_clone(enode);
+ table[tree->table_len].ynode = ynode;
+ table[tree->table_len].enode = enode;
+ tree->table = table;
+ tree->table_len++;
+
+ return 0;
+}
+
+static void
+free_tree(struct enode_tree *tree)
+{
+ size_t i;
+
+ if (tree->root != NULL)
+ ec_node_free(tree->root);
+ for (i = 0; i < tree->table_len; i++)
+ ec_node_free(tree->table[i].enode);
+ free(tree->table);
+}
+
+static struct ec_config *
+parse_ec_config(struct enode_tree *tree,
+ const struct ec_config_schema *schema_elt,
+ const yaml_document_t *document, const yaml_node_t *ynode)
+{
+ const struct ec_config_schema *subschema;
+ struct ec_config *config = NULL;
+ struct ec_node *enode = NULL;
+ enum ec_config_type type;
+ const char *value_str;
+ uint64_t u64;
+ int64_t i64;
+ bool boolean;
+
+ type = ec_config_schema_type(schema_elt);
+
+ switch (type) {
+ case EC_CONFIG_TYPE_BOOL:
+ if (ynode->type != YAML_SCALAR_NODE) {
+ fprintf(stderr, "Boolean should be scalar\n");
+ goto fail;
+ }
+ value_str = (const char *)ynode->data.scalar.value;
+ if (parse_bool(value_str, &boolean) < 0) {
+ fprintf(stderr, "Failed to parse boolean\n");
+ goto fail;
+ }
+ config = ec_config_bool(boolean);
+ if (config == NULL) {
+ fprintf(stderr, "Failed to create config\n");
+ goto fail;
+ }
+ break;
+ case EC_CONFIG_TYPE_INT64:
+ if (ynode->type != YAML_SCALAR_NODE) {
+ fprintf(stderr, "Int64 should be scalar\n");
+ goto fail;
+ }
+ value_str = (const char *)ynode->data.scalar.value;
+ if (parse_llint(value_str, &i64) < 0) {
+ fprintf(stderr, "Failed to parse i64\n");
+ goto fail;
+ }
+ config = ec_config_i64(i64);
+ if (config == NULL) {
+ fprintf(stderr, "Failed to create config\n");
+ goto fail;
+ }
+ break;
+ case EC_CONFIG_TYPE_UINT64:
+ if (ynode->type != YAML_SCALAR_NODE) {
+ fprintf(stderr, "Uint64 should be scalar\n");
+ goto fail;
+ }
+ value_str = (const char *)ynode->data.scalar.value;
+ if (parse_ullint(value_str, &u64) < 0) {
+ fprintf(stderr, "Failed to parse u64\n");
+ goto fail;
+ }
+ config = ec_config_u64(u64);
+ if (config == NULL) {
+ fprintf(stderr, "Failed to create config\n");
+ goto fail;
+ }
+ break;
+ case EC_CONFIG_TYPE_STRING:
+ if (ynode->type != YAML_SCALAR_NODE) {
+ fprintf(stderr, "String should be scalar\n");
+ goto fail;
+ }
+ value_str = (const char *)ynode->data.scalar.value;
+ config = ec_config_string(value_str);
+ if (config == NULL) {
+ fprintf(stderr, "Failed to create config\n");
+ goto fail;
+ }
+ break;
+ case EC_CONFIG_TYPE_NODE:
+ enode = parse_ec_node(tree, document, ynode);
+ if (enode == NULL)
+ goto fail;
+ config = ec_config_node(enode);
+ if (config == NULL) {
+ fprintf(stderr, "Failed to create config\n");
+ goto fail;
+ }
+ break;
+ case EC_CONFIG_TYPE_LIST:
+ subschema = ec_config_schema_sub(schema_elt);
+ if (subschema == NULL) {
+ fprintf(stderr, "List has no subschema\n");
+ goto fail;
+ }
+ config = parse_ec_config_list(tree, subschema, document, ynode);
+ if (config == NULL)
+ goto fail;
+ break;
+ case EC_CONFIG_TYPE_DICT:
+ subschema = ec_config_schema_sub(schema_elt);
+ if (subschema == NULL) {
+ fprintf(stderr, "Dict has no subschema\n");
+ goto fail;
+ }
+ config = parse_ec_config_dict(tree, subschema, document, ynode);
+ if (config == NULL)
+ goto fail;
+ break;
+ default:
+ fprintf(stderr, "Invalid config type %d\n", type);
+ goto fail;
+ }
+
+ return config;
+
+fail:
+ ec_node_free(enode);
+ ec_config_free(config);
+ return NULL;
+}
+
+static struct ec_config *
+parse_ec_config_list(struct enode_tree *tree,
+ const struct ec_config_schema *schema,
+ const yaml_document_t *document, const yaml_node_t *ynode)
+{
+ struct ec_config *config = NULL, *subconfig = NULL;
+ const yaml_node_item_t *item;
+ const yaml_node_t *value;
+
+ (void)tree;
+ (void)schema;
+ (void)document;
+
+ if (ynode->type != YAML_SEQUENCE_NODE) {
+ fprintf(stderr, "Ecoli list config should be a yaml sequence\n");
+ goto fail;
+ }
+
+ config = ec_config_list();
+ if (config == NULL) {
+ fprintf(stderr, "Failed to allocate config\n");
+ goto fail;
+ }
+
+ for (item = ynode->data.sequence.items.start;
+ item < ynode->data.sequence.items.top; item++) {
+ value = document->nodes.start + (*item) - 1; // XXX -1 ?
+ subconfig = parse_ec_config(tree, schema, document, value);
+ if (subconfig == NULL)
+ goto fail;
+ if (ec_config_list_add(config, subconfig) < 0) {
+ fprintf(stderr, "Failed to add list entry\n");
+ goto fail;
+ }
+ }
+
+ return config;
+
+fail:
+ ec_config_free(config);
+ return NULL;
+}
+
+static struct ec_config *
+parse_ec_config_dict(struct enode_tree *tree,
+ const struct ec_config_schema *schema,
+ const yaml_document_t *document, const yaml_node_t *ynode)
+{
+ const struct ec_config_schema *schema_elt;
+ struct ec_config *config = NULL, *subconfig = NULL;
+ const yaml_node_t *key, *value;
+ const yaml_node_pair_t *pair;
+ const char *key_str;
+
+ if (ynode->type != YAML_MAPPING_NODE) {
+ fprintf(stderr, "Ecoli config should be a yaml mapping node\n");
+ goto fail;
+ }
+
+ config = ec_config_dict();
+ if (config == NULL) {
+ fprintf(stderr, "Failed to allocate config\n");
+ goto fail;
+ }
+
+ for (pair = ynode->data.mapping.pairs.start;
+ pair < ynode->data.mapping.pairs.top; pair++) {
+ key = document->nodes.start + pair->key - 1; // XXX -1 ?
+ value = document->nodes.start + pair->value - 1;
+ key_str = (const char *)key->data.scalar.value;
+
+ if (ec_config_key_is_reserved(key_str))
+ continue;
+ schema_elt = ec_config_schema_lookup(schema, key_str);
+ if (schema_elt == NULL) {
+ fprintf(stderr, "No such config %s\n", key_str);
+ goto fail;
+ }
+ subconfig = parse_ec_config(tree, schema_elt, document, value);
+ if (subconfig == NULL)
+ goto fail;
+ if (ec_config_dict_set(config, key_str, subconfig) < 0) {
+ fprintf(stderr, "Failed to set dict entry\n");
+ goto fail;
+ }
+ }
+
+ return config;
+
+fail:
+ ec_config_free(config);
+ return NULL;
+}
+
+static struct ec_node *
+parse_ec_node(struct enode_tree *tree,
+ const yaml_document_t *document, const yaml_node_t *ynode)
+{
+ const struct ec_config_schema *schema;
+ const struct ec_node_type *type = NULL;
+ const char *id = NULL, *help = NULL;
+ struct ec_config *config = NULL;
+ const yaml_node_t *attrs = NULL;
+ const yaml_node_t *key, *value;
+ const yaml_node_pair_t *pair;
+ const char *key_str, *value_str;
+ struct ec_node *enode = NULL;
+
+ if (ynode->type != YAML_MAPPING_NODE) {
+ fprintf(stderr, "Ecoli node should be a yaml mapping node\n");
+ goto fail;
+ }
+
+ for (pair = ynode->data.mapping.pairs.start;
+ pair < ynode->data.mapping.pairs.top; pair++) {
+ key = document->nodes.start + pair->key - 1; // XXX -1 ?
+ value = document->nodes.start + pair->value - 1;
+ key_str = (const char *)key->data.scalar.value;
+ value_str = (const char *)value->data.scalar.value;
+
+ if (!strcmp(key_str, "type")) {
+ if (type != NULL) {
+ fprintf(stderr, "Duplicate type\n");
+ goto fail;
+ }
+ if (value->type != YAML_SCALAR_NODE) {
+ fprintf(stderr, "Type must be a string\n");
+ goto fail;
+ }
+ type = ec_node_type_lookup(value_str);
+ if (type == NULL) {
+ fprintf(stderr, "Cannot find type %s\n",
+ value_str);
+ goto fail;
+ }
+ } else if (!strcmp(key_str, "attrs")) {
+ if (attrs != NULL) {
+ fprintf(stderr, "Duplicate attrs\n");
+ goto fail;
+ }
+ if (value->type != YAML_MAPPING_NODE) {
+ fprintf(stderr, "Attrs must be a maping\n");
+ goto fail;
+ }
+ attrs = value;
+ } else if (!strcmp(key_str, "id")) {
+ if (id != NULL) {
+ fprintf(stderr, "Duplicate id\n");
+ goto fail;
+ }
+ if (value->type != YAML_SCALAR_NODE) {
+ fprintf(stderr, "Id must be a scalar\n");
+ goto fail;
+ }
+ id = value_str;
+ } else if (!strcmp(key_str, "help")) {
+ if (help != NULL) {
+ fprintf(stderr, "Duplicate help\n");
+ goto fail;
+ }
+ if (value->type != YAML_SCALAR_NODE) {
+ fprintf(stderr, "Help must be a scalar\n");
+ goto fail;
+ }
+ help = value_str;
+ }
+ }
+
+ /* create the ecoli node */
+ if (id == NULL)
+ id = EC_NO_ID;
+ enode = ec_node_from_type(type, id);
+ if (enode == NULL) {
+ fprintf(stderr, "Cannot create ecoli node\n");
+ goto fail;
+ }
+ if (add_in_table(tree, ynode, enode) < 0) {
+ fprintf(stderr, "Cannot add node in table\n");
+ goto fail;
+ }
+ if (tree->root == NULL) {
+ ec_node_clone(enode);
+ tree->root = enode;
+ }
+
+ /* create its config */
+ schema = ec_node_type_schema(type);
+ if (schema == NULL) {
+ fprintf(stderr, "No configuration schema for type %s\n",
+ ec_node_type_name(type));
+ goto fail;
+ }
+
+ config = parse_ec_config_dict(tree, schema, document, ynode);
+ if (config == NULL)
+ goto fail;
+
+ if (ec_node_set_config(enode, config) < 0) {
+ fprintf(stderr, "Failed to set config\n");
+ goto fail;
+ }
+
+ /* add attributes (all as string) */
+ //XXX
+
+ return enode;
+
+fail:
+ ec_node_free(enode);
+ ec_config_free(config);
+ return NULL;
+}
+
+static int
+parse_document(struct enode_tree *tree, const yaml_document_t *document)
+{
+ yaml_node_t *node;
+
+ node = document->nodes.start;
+ if (parse_ec_node(tree, document, node) == NULL)
+ return -1;
+
+ return 0;
+}
+
+static int parse_file(struct enode_tree *tree, const char *filename)
+{
+ FILE *file;
+ yaml_parser_t parser;
+ yaml_document_t document;
+
+ file = fopen(filename, "rb");
+ if (file == NULL) {
+ fprintf(stderr, "Failed to open file %s\n", filename);
+ goto fail_no_doc;
+ }
+
+ if (yaml_parser_initialize(&parser) == 0) {
+ fprintf(stderr, "Failed to initialize yaml parser\n");
+ goto fail_no_doc;
+ }
+
+ yaml_parser_set_input_file(&parser, file);
+
+ if (yaml_parser_load(&parser, &document) == 0) {
+ fprintf(stderr, "Failed to load yaml document\n");
+ goto fail_no_doc;
+ }
+
+ if (yaml_document_get_root_node(&document) == NULL) {
+ fprintf(stderr, "Incomplete document\n"); //XXX check err
+ goto fail;
+ }
+
+ if (parse_document(tree, &document) < 0) {
+ fprintf(stderr, "Failed to parse document\n");
+ goto fail;
+ }
+
+ yaml_document_delete(&document);
+ yaml_parser_delete(&parser);
+ fclose(file);
+
+ return 0;
+
+fail:
+ yaml_document_delete(&document);
+fail_no_doc:
+ yaml_parser_delete(&parser);
+ if (file != NULL)
+ fclose(file);
+
+ return -1;
+}
+
+int
+main(int argc, char *argv[])
+{
+ struct enode_tree tree;
+
+ memset(&tree, 0, sizeof(tree));
+
+ if (argc != 2) {
+ fprintf(stderr, "Invalid args\n");
+ goto fail;
+ }
+ if (parse_file(&tree, argv[1]) < 0) {
+ fprintf(stderr, "Failed to parse file\n");
+ goto fail;
+ }
+ printf("root=%p len=%zd\n", tree.root, tree.table_len);
+ ec_node_dump(stdout, tree.root);
+ free_tree(&tree);
+
+ return 0;
+
+fail:
+ free_tree(&tree);
+ return 1;
+}
git.droids-corp.org / protos / libecoli.git / commitdiff