Initial VES for DANOS vRouter

[demo.git] / vnfs / VESreporting_vFW5.0_DANOS / evel / evel-library / code / evel_library / jsmn.h

diff --git a/vnfs/VESreporting_vFW5.0_DANOS/evel/evel-library/code/evel_library/jsmn.h b/vnfs/VESreporting_vFW5.0_DANOS/evel/evel-library/code/evel_library/jsmn.h
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+/*************************************************************************//**
+ *
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and 
+ * limitations under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __JSMN_H_
+#define __JSMN_H_
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * JSON type identifier. Basic types are:
+ *     o Object
+ *     o Array
+ *     o String
+ *     o Other primitive: number, boolean (true/false) or null
+ */
+typedef enum {
+       JSMN_UNDEFINED = 0,
+       JSMN_OBJECT = 1,
+       JSMN_ARRAY = 2,
+       JSMN_STRING = 3,
+       JSMN_PRIMITIVE = 4
+} jsmntype_t;
+
+enum jsmnerr {
+       /* Not enough tokens were provided */
+       JSMN_ERROR_NOMEM = -1,
+       /* Invalid character inside JSON string */
+       JSMN_ERROR_INVAL = -2,
+       /* The string is not a full JSON packet, more bytes expected */
+       JSMN_ERROR_PART = -3
+};
+
+/**
+ * JSON token description.
+ * @param              type    type (object, array, string etc.)
+ * @param              start   start position in JSON data string
+ * @param              end             end position in JSON data string
+ */
+typedef struct {
+       jsmntype_t type;
+       int start;
+       int end;
+       int size;
+#ifdef JSMN_PARENT_LINKS
+       int parent;
+#endif
+} jsmntok_t;
+
+/**
+ * JSON parser. Contains an array of token blocks available. Also stores
+ * the string being parsed now and current position in that string
+ */
+typedef struct {
+       unsigned int pos; /* offset in the JSON string */
+       unsigned int toknext; /* next token to allocate */
+       int toksuper; /* superior token node, e.g parent object or array */
+} jsmn_parser;
+
+/**
+ * Create JSON parser over an array of tokens
+ */
+void jsmn_init(jsmn_parser *parser);
+
+/**
+ * Run JSON parser. It parses a JSON data string into and array of tokens, each describing
+ * a single JSON object.
+ */
+int jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
+               jsmntok_t *tokens, unsigned int num_tokens);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __JSMN_H_ */