HM Yoong / Mbed 2 deprecated _library_jsmn

Example to use JSMN (Jasmine JSON Library)

Dependencies:   jsmn mbed

Files at this revision

API Documentation at this revision

Revision 0:28f07b17e084, committed 2014-06-11

Comitter:
yoonghm
Date:
Wed Jun 11 03:24:52 2014 +0000
Commit message:
Example to use jsmn (Jasmine JSON Library)

Changed in this revision

jsmn.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsmn.lib	Wed Jun 11 03:24:52 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/yoonghm/code/jsmn/#46575249ef23

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Jun 11 03:24:52 2014 +0000
@@ -0,0 +1,91 @@
+#include <ctype.h>
+
+#include "mbed.h"
+
+#include "jsmn.h"
+
+#define       MAXTOKEN       64
+
+const char *jsmn_type_str[] = {
+  "PRIMITIVE",
+  "OBJECT",
+  "ARRAY",
+  "STRING"
+};
+
+
+int main()
+{
+  const char *js;            // Pointer to json string
+  int         r;             // Number of token parsed
+  jsmn_parser p;             // jsmn parser
+  jsmntok_t   t[MAXTOKEN];   // Parsed token
+
+  // JSON may contain multibyte characters or encoded unicode in
+  // \uXXXX format.
+  // mbed compiler may complain "invalid multibyte character sequence".
+  js =
+"{"
+"  \"menu\":"
+"  {"
+"    \"id\": 1234,"
+"    \"group\": \"File\","
+"    \"popup\":"
+"    {"
+"      \"menuitem\":"
+"      ["
+"        {\"value\": true,    \"onclick\"  : \"বিশাল\"},"
+"        {\"value\": false,   0x1328       : \"groß\"},"
+"        {\"value\": null,    \"15\u00f8C\": \"3\u0111\"},"
+"        {\"value\": \"測試\", -12.34       :  99}"
+"      ]"
+"    }"
+"  }"
+"}";
+
+  jsmn_init(&p);
+  r = jsmn_parse(&p, js, strlen(js), t, MAXTOKEN);
+
+  printf("Parsed %d tokens\n", r);
+  
+  printf("            TYPE       START   END  SIZE PAR\n");
+  printf("           ----------  -----  ----  ---- ---\n");
+
+  char        ch;
+  jsmntok_t   at;            // A token for general use
+  for (int i = 0; i < r; i++)
+  {
+    at = t[i];
+    printf("Token %2d = %-10.10s (%4d - %4d, %3d, %2d) --> ",
+           i, jsmn_type_str[at.type],
+           at.start, at.end,
+           at.size, at.parent);
+
+    switch (at.type)
+    {
+      case JSMN_STRING:
+        printf("%-10.*s\n", at.end - at.start + 2, js + at.start - 1);
+        break;
+
+      case JSMN_PRIMITIVE:
+        ch = *(js + at.start);
+
+        if (isdigit(ch) || ch == '-') 
+          printf("%-10.*s\n", at.end - at.start, js + at.start);
+        else if (tolower(ch) == 'n')
+          printf("null\n");
+        else if (tolower(ch) == 't')
+          printf("true\n");
+        else if (tolower(ch) == 'f')
+          printf("false\n");
+        break;
+
+      default:
+        printf("\n");
+        break;
+    }
+  }
+ 
+  while (1)
+    ;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Jun 11 03:24:52 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/8a40adfe8776
\ No newline at end of file