Diff: jsmn.h

Revision:

0:625bfa0ff591

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsmn.h	Wed Jan 22 15:21:09 2014 +0000
@@ -0,0 +1,67 @@
+#ifndef __JSMN_H_
+#define __JSMN_H_
+
+/**
+ * JSON type identifier. Basic types are:
+ *  o Object
+ *  o Array
+ *  o String
+ *  o Other primitive: number, boolean (true/false) or null
+ */
+typedef enum {
+    JSMN_PRIMITIVE = 0,
+    JSMN_OBJECT = 1,
+    JSMN_ARRAY = 2,
+    JSMN_STRING = 3
+} jsmntype_t;
+
+typedef enum {
+    /* 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,
+    /* Everything was fine */
+    JSMN_SUCCESS = 0
+} jsmnerr_t;
+
+/**
+ * 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 */
+    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.
+ */
+jsmnerr_t jsmn_parse(jsmn_parser *parser, char *js, 
+        jsmntok_t *tokens, unsigned int num_tokens);
+
+#endif /* __JSMN_H_ */
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