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Diffstat (limited to 'dependencies/jsmn/example/simple.c')
-rw-r--r-- | dependencies/jsmn/example/simple.c | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/dependencies/jsmn/example/simple.c b/dependencies/jsmn/example/simple.c deleted file mode 100644 index 1254575a1..000000000 --- a/dependencies/jsmn/example/simple.c +++ /dev/null @@ -1,77 +0,0 @@ -#include "../jsmn.h" -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -/* - * A small example of jsmn parsing when JSON structure is known and number of - * tokens is predictable. - */ - -static const char *JSON_STRING = - "{\"user\": \"johndoe\", \"admin\": false, \"uid\": 1000,\n " - "\"groups\": [\"users\", \"wheel\", \"audio\", \"video\"]}"; - -static int jsoneq(const char *json, jsmntok_t *tok, const char *s) { - if (tok->type == JSMN_STRING && (int)strlen(s) == tok->end - tok->start && - strncmp(json + tok->start, s, tok->end - tok->start) == 0) { - return 0; - } - return -1; -} - -int main() { - int i; - int r; - jsmn_parser p; - jsmntok_t t[128]; /* We expect no more than 128 tokens */ - - jsmn_init(&p); - r = jsmn_parse(&p, JSON_STRING, strlen(JSON_STRING), t, - sizeof(t) / sizeof(t[0])); - if (r < 0) { - printf("Failed to parse JSON: %d\n", r); - return 1; - } - - /* Assume the top-level element is an object */ - if (r < 1 || t[0].type != JSMN_OBJECT) { - printf("Object expected\n"); - return 1; - } - - /* Loop over all keys of the root object */ - for (i = 1; i < r; i++) { - if (jsoneq(JSON_STRING, &t[i], "user") == 0) { - /* We may use strndup() to fetch string value */ - printf("- User: %.*s\n", t[i + 1].end - t[i + 1].start, - JSON_STRING + t[i + 1].start); - i++; - } else if (jsoneq(JSON_STRING, &t[i], "admin") == 0) { - /* We may additionally check if the value is either "true" or "false" */ - printf("- Admin: %.*s\n", t[i + 1].end - t[i + 1].start, - JSON_STRING + t[i + 1].start); - i++; - } else if (jsoneq(JSON_STRING, &t[i], "uid") == 0) { - /* We may want to do strtol() here to get numeric value */ - printf("- UID: %.*s\n", t[i + 1].end - t[i + 1].start, - JSON_STRING + t[i + 1].start); - i++; - } else if (jsoneq(JSON_STRING, &t[i], "groups") == 0) { - int j; - printf("- Groups:\n"); - if (t[i + 1].type != JSMN_ARRAY) { - continue; /* We expect groups to be an array of strings */ - } - for (j = 0; j < t[i + 1].size; j++) { - jsmntok_t *g = &t[i + j + 2]; - printf(" * %.*s\n", g->end - g->start, JSON_STRING + g->start); - } - i += t[i + 1].size + 1; - } else { - printf("Unexpected key: %.*s\n", t[i].end - t[i].start, - JSON_STRING + t[i].start); - } - } - return EXIT_SUCCESS; -} |