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https://github.com/DaveGamble/cJSON
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a few more README changes
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README.md
50
README.md
@ -77,7 +77,7 @@ Want to change the framerate?
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Back to disk?
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char * rendered=cJSON_Print(root);
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char * rendered = cJSON_Print(root);
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Finished? Delete the root (this takes care of everything else).
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@ -89,12 +89,12 @@ before you dereference them. If you want to see how you'd build this struct in c
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cJSON *root,*fmt;
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root = cJSON_CreateObject();
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cJSON_AddItemToObject(root, "name", cJSON_CreateString("Jack (\"Bee\") Nimble"));
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cJSON_AddItemToObject(root, "format", fmt=cJSON_CreateObject());
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cJSON_AddStringToObject(fmt,"type", "rect");
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cJSON_AddNumberToObject(fmt,"width", 1920);
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cJSON_AddNumberToObject(fmt,"height", 1080);
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cJSON_AddFalseToObject (fmt,"interlace");
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cJSON_AddNumberToObject(fmt,"frame rate", 24);
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cJSON_AddItemToObject(root, "format", fmt = cJSON_CreateObject());
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cJSON_AddStringToObject(fmt, "type", "rect");
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cJSON_AddNumberToObject(fmt, "width", 1920);
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cJSON_AddNumberToObject(fmt, "height", 1080);
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cJSON_AddFalseToObject (fmt, "interlace");
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cJSON_AddNumberToObject(fmt, "frame rate", 24);
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Hopefully we can agree that's not a lot of code? There's no overhead, no unnecessary setup.
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Look at test.c for a bunch of nice examples, mostly all ripped off the json.org site, and
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@ -156,11 +156,11 @@ you'd do it (just an example, since these things are very specific):
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{
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while (item)
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{
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char *newprefix=malloc(strlen(prefix)+strlen(item->name)+2);
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char *newprefix = malloc(strlen(prefix) + strlen(item->name) + 2);
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sprintf(newprefix,"%s/%s",prefix,item->name);
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int dorecurse=callback(newprefix, item->type, item);
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if (item->child && dorecurse) parse_and_callback(item->child,newprefix);
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item=item->next;
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int dorecurse = callback(newprefix, item->type, item);
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if (item->child && dorecurse) parse_and_callback(item->child, newprefix);
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item = item->next;
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free(newprefix);
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}
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}
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@ -185,24 +185,25 @@ You'd use:
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void parse_object(cJSON *item)
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{
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int i; for (i=0;i<cJSON_GetArraySize(item);i++)
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int i;
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for (i = 0 ; i < cJSON_GetArraySize(item) ; i++)
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{
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cJSON *subitem=cJSON_GetArrayItem(item,i);
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cJSON * subitem = cJSON_GetArrayItem(item, i);
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// handle subitem.
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}
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}
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Or, for PROPER manual mode:
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void parse_object(cJSON *item)
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void parse_object(cJSON * item)
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{
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cJSON *subitem=item->child;
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cJSON *subitem = item->child;
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while (subitem)
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{
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// handle subitem
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if (subitem->child) parse_object(subitem->child);
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subitem=subitem->next;
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subitem = subitem->next;
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}
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}
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@ -217,21 +218,22 @@ You can, of course, hand your sub-objects to other functions to populate.
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Also, if you find a use for it, you can manually build the objects.
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For instance, suppose you wanted to build an array of objects?
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cJSON *objects[24];
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cJSON * objects[24];
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cJSON *Create_array_of_anything(cJSON **items,int num)
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cJSON * Create_array_of_anything(cJSON ** items, int num)
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{
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int i;cJSON *prev, *root=cJSON_CreateArray();
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for (i=0;i<24;i++)
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int i;
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cJSON * prev, * root = cJSON_CreateArray();
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for (i = 0 ; i < 24 ; i++)
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{
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if (!i) root->child=objects[i];
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else prev->next=objects[i], objects[i]->prev=prev;
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prev=objects[i];
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if (!i) root->child = objects[i];
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else prev->next = objects[i], objects[i]->prev = prev;
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prev = objects[i];
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}
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return root;
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}
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and simply: Create_array_of_anything(objects,24);
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and simply: Create_array_of_anything(objects, 24);
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cJSON doesn't make any assumptions about what order you create things in.
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You can attach the objects, as above, and later add children to each
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