Allow encoding user-provided strings.

TODO.txt

@@ -30,7 +30,7 @@ Milestone: v0.3.0
 [~] Simple command line tool for working with JSON
     [x] Pretty-print Json
     [x] Query fields for use in shell scripts.
-    [ ] Encode user-provided JSON strings
+    [x] Encode user-provided JSON strings
     [ ] json man page
 
 [ ] Move configuration to database

tools/src/json.c

@@ -30,22 +30,18 @@
 #include <Memory.h>
 #include <Json.h>
 
-int
+#define FLAG_ENCODE (1 << 0)
-main(int argc, char **argv)
+#define FLAG_SELECT (1 << 1)
+
+static void
+usage(char *prog)
 {
-    HashMap *json;
+    fprintf(stderr, "Usage: %s [-s query|-e str]\n", prog);
+}
 
-    json = JsonDecode(stdin);
+static void
-
+query(char *select, HashMap * json)
-    if (!json)
+{
-    {
-        fprintf(stderr, "Malformed JSON.\n");
-        return 1;
-    }
-
-    if (argc > 1)
-    {
-        char *select = argv[1];
     char *key;
     JsonValue *val = JsonValueObject(json);
 
@@ -93,7 +89,7 @@ main(int argc, char **argv)
             }
             else if (JsonValueType(val) == JSON_STRING && strcmp(keyName + 1, "decode") == 0)
             {
-                    printf("%s", JsonValueAsString(val));
+                printf("%s\n", JsonValueAsString(val));
                 val = NULL;
                 break;
             }
@@ -117,7 +113,8 @@ main(int argc, char **argv)
             {
                 size_t i;
 
-                    sscanf(keyName + 1, "%lu", &i);
+                if (sscanf(keyName + 1, "%lu", &i) == 1)
+                {
                     JsonValueFree(ArrayDelete(JsonValueAsArray(val), i));
                 }
                 else
@@ -125,6 +122,12 @@ main(int argc, char **argv)
                     val = NULL;
                     break;
                 }
+            }
+            else
+            {
+                val = NULL;
+                break;
+            }
 
             func = 1;
         }
@@ -158,14 +161,68 @@ main(int argc, char **argv)
     if (val)
     {
         JsonEncodeValue(val, stdout, JSON_PRETTY);
-        }
-
         printf("\n");
     }
-    else
+}
+
+static void
+encode(char *str)
+{
+    JsonValue *val = JsonValueString(str);
+
+    JsonEncodeValue(val, stdout, JSON_DEFAULT);
+    JsonValueFree(val);
+    printf("\n");
+}
+
+int
+main(int argc, char **argv)
+{
+    HashMap *json;
+    int flag = 0;
+    int ch;
+    char *input;
+
+    while ((ch = getopt(argc, argv, "s:e:")) != -1)
     {
+        switch (ch)
+        {
+            case 's':
+                flag = FLAG_SELECT;
+                input = optarg;
+                break;
+            case 'e':
+                flag = FLAG_ENCODE;
+                input = optarg;
+                break;
+            default:
+                usage(argv[0]);
+                return 1;
+        }
+    }
+
+    if (flag != FLAG_ENCODE)
+    {
+        json = JsonDecode(stdin);
+
+        if (!json)
+        {
+            fprintf(stderr, "Malformed JSON.\n");
+            return 1;
+        }
+    }
+
+    switch (flag)
+    {
+        case FLAG_SELECT:
+            query(input, json);
+            break;
+        case FLAG_ENCODE:
+            encode(input);
+            break;
+        default:
             JsonEncode(json, stdout, JSON_PRETTY);
-        JsonFree(json);
+            break;
     }
 
     MemoryFreeAll();