Finish the library implementation

Author: rexim

Makefile

@@ -1,2 +1,2 @@
 example: example.c jim.h
-	cc -Wall -Wextra -Wno-unused-parameter -std=c99 -pedantic -o example example.c 
+	cc -Wall -Wextra -Wswitch-enum -std=c99 -pedantic -o example example.c 

README.md

@@ -1,3 +1,94 @@
 # JIM
 
 Immediate Mode JSON Serialization Library in C
+
+## Example
+
+[`example.c`](./example.c):
+
+```c
+#include <stdio.h>
+
+#define JIM_IMPLEMENTATION
+#include "./jim.h"
+
+int main()
+{
+    Jim jim = {
+        .sink = stdout,
+        .write = (Jim_Write) fwrite,
+    };
+
+    jim_object_begin(&jim);
+        jim_member_key(&jim, "null", NULL);
+        jim_null(&jim);
+
+        jim_member_key(&jim, "bool", NULL);
+        jim_array_begin(&jim);
+            jim_bool(&jim, 0);
+            jim_bool(&jim, 1);
+        jim_array_end(&jim);
+
+        jim_member_key(&jim, "integers", NULL);
+        jim_array_begin(&jim);
+            for (int i = -3; i <= 3; ++i) {
+                jim_integer(&jim, i);
+            }
+        jim_array_end(&jim);
+
+        jim_member_key(&jim, "floats", NULL);
+        jim_array_begin(&jim);
+            jim_float(&jim, 3.1415, 4);
+            jim_float(&jim, 2.71828, 5);
+            jim_float(&jim, 1.6180, 4);
+        jim_array_end(&jim);
+
+        jim_member_key(&jim, "string", NULL);
+        jim_array_begin(&jim);
+            jim_string(&jim, "Hello\tWorld\n", NULL);
+            unsigned int size = 4;
+            jim_string(&jim, "\0\0\0\0", &size);
+        jim_array_end(&jim);
+    jim_object_end(&jim);
+
+    if (jim.error != JIM_OK) {
+        fprintf(stderr, "ERROR: could not serialize json properly: %s\n",
+                jim_error_string(jim.error));
+        return -1;
+    }
+
+    return 0;
+}
+```
+
+### Output
+
+```console
+$ cc -o example example.c
+$ ./example | jq .
+{
+  "null": null,
+  "bool": [
+    false,
+    true
+  ],
+  "integers": [
+    -3,
+    -2,
+    -1,
+    0,
+    1,
+    2,
+    3
+  ],
+  "floats": [
+    3.1415,
+    2.71828,
+    1.618
+  ],
+  "string": [
+    "Hello\tWorld\n",
+    "\u0000\u0000\u0000\u0000"
+  ]
+}
+```

example.c

@@ -7,50 +7,44 @@ int main()
 {
     Jim jim = {
         .sink = stdout,
-        .write = fwrite,
+        .write = (Jim_Write) fwrite,
     };
 
-    jim_begin(&jim);
+    jim_object_begin(&jim);
+        jim_member_key(&jim, "null", NULL);
+        jim_null(&jim);
+
+        jim_member_key(&jim, "bool", NULL);
+        jim_array_begin(&jim);
+            jim_bool(&jim, 0);
+            jim_bool(&jim, 1);
+        jim_array_end(&jim);
+
+        jim_member_key(&jim, "integers", NULL);
+        jim_array_begin(&jim);
+            for (int i = -3; i <= 3; ++i) {
+                jim_integer(&jim, i);
+            }
+        jim_array_end(&jim);
+
+        jim_member_key(&jim, "floats", NULL);
+        jim_array_begin(&jim);
+            jim_float(&jim, 3.1415, 4);
+            jim_float(&jim, 2.71828, 5);
+            jim_float(&jim, 1.6180, 4);
+        jim_array_end(&jim);
+
+        jim_member_key(&jim, "string", NULL);
         jim_array_begin(&jim);
-            jim_element_begin(&jim);
-                jim_array_begin(&jim);
-                    jim_element_begin(&jim);
-                    jim_null(&jim);
-                    jim_element_end(&jim);
-                    for (int i = 0; i < 5; ++i) {
-                        jim_element_begin(&jim);
-                        jim_bool(&jim, i);
-                        jim_element_end(&jim);
-                    }
-                jim_array_end(&jim);
-            jim_element_end(&jim);
-
-            jim_element_begin(&jim);
-                jim_bool(&jim, 0);
-            jim_element_end(&jim);
-
-            jim_element_begin(&jim);
-                jim_bool(&jim, 1);
-            jim_element_end(&jim);
-
-            jim_element_begin(&jim);
-                size_t size = 5;
-                jim_string(&jim, "\0\0\0\0\0", &size);
-            jim_element_end(&jim);
-            
-            jim_element_begin(&jim);
-                jim_object_begin(&jim);
-                    jim_member_begin(&jim);
-                        jim_member_key(&jim, "hello", NULL);
-                        jim_bool(&jim, 0);
-                    jim_member_end(&jim);
-                jim_object_end(&jim);
-            jim_element_end(&jim);
+            jim_string(&jim, "Hello\tWorld\n", NULL);
+            unsigned int size = 4;
+            jim_string(&jim, "\0\0\0\0", &size);
         jim_array_end(&jim);
-    jim_end(&jim);
+    jim_object_end(&jim);
 
     if (jim.error != JIM_OK) {
-        fprintf(stderr, "ERROR: could not serialize json properly: %s\n", jim_error_string(jim.error));
+        fprintf(stderr, "ERROR: could not serialize json properly: %s\n",
+                jim_error_string(jim.error));
         return -1;
     }