diff options
Diffstat (limited to 'dependencies/jsmn/example/jsondump.c')
-rw-r--r-- | dependencies/jsmn/example/jsondump.c | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/dependencies/jsmn/example/jsondump.c b/dependencies/jsmn/example/jsondump.c deleted file mode 100644 index 1eb620640..000000000 --- a/dependencies/jsmn/example/jsondump.c +++ /dev/null @@ -1,134 +0,0 @@ -#include "../jsmn.h" -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -/* Function realloc_it() is a wrapper function for standard realloc() - * with one difference - it frees old memory pointer in case of realloc - * failure. Thus, DO NOT use old data pointer in anyway after call to - * realloc_it(). If your code has some kind of fallback algorithm if - * memory can't be re-allocated - use standard realloc() instead. - */ -static inline void *realloc_it(void *ptrmem, size_t size) { - void *p = realloc(ptrmem, size); - if (!p) { - free(ptrmem); - fprintf(stderr, "realloc(): errno=%d\n", errno); - } - return p; -} - -/* - * An example of reading JSON from stdin and printing its content to stdout. - * The output looks like YAML, but I'm not sure if it's really compatible. - */ - -static int dump(const char *js, jsmntok_t *t, size_t count, int indent) { - int i, j, k; - jsmntok_t *key; - if (count == 0) { - return 0; - } - if (t->type == JSMN_PRIMITIVE) { - printf("%.*s", t->end - t->start, js + t->start); - return 1; - } else if (t->type == JSMN_STRING) { - printf("'%.*s'", t->end - t->start, js + t->start); - return 1; - } else if (t->type == JSMN_OBJECT) { - printf("\n"); - j = 0; - for (i = 0; i < t->size; i++) { - for (k = 0; k < indent; k++) { - printf(" "); - } - key = t + 1 + j; - j += dump(js, key, count - j, indent + 1); - if (key->size > 0) { - printf(": "); - j += dump(js, t + 1 + j, count - j, indent + 1); - } - printf("\n"); - } - return j + 1; - } else if (t->type == JSMN_ARRAY) { - j = 0; - printf("\n"); - for (i = 0; i < t->size; i++) { - for (k = 0; k < indent - 1; k++) { - printf(" "); - } - printf(" - "); - j += dump(js, t + 1 + j, count - j, indent + 1); - printf("\n"); - } - return j + 1; - } - return 0; -} - -int main() { - int r; - int eof_expected = 0; - char *js = NULL; - size_t jslen = 0; - char buf[BUFSIZ]; - - jsmn_parser p; - jsmntok_t *tok; - size_t tokcount = 2; - - /* Prepare parser */ - jsmn_init(&p); - - /* Allocate some tokens as a start */ - tok = malloc(sizeof(*tok) * tokcount); - if (tok == NULL) { - fprintf(stderr, "malloc(): errno=%d\n", errno); - return 3; - } - - for (;;) { - /* Read another chunk */ - r = fread(buf, 1, sizeof(buf), stdin); - if (r < 0) { - fprintf(stderr, "fread(): %d, errno=%d\n", r, errno); - return 1; - } - if (r == 0) { - if (eof_expected != 0) { - return 0; - } else { - fprintf(stderr, "fread(): unexpected EOF\n"); - return 2; - } - } - - js = realloc_it(js, jslen + r + 1); - if (js == NULL) { - return 3; - } - strncpy(js + jslen, buf, r); - jslen = jslen + r; - - again: - r = jsmn_parse(&p, js, jslen, tok, tokcount); - if (r < 0) { - if (r == JSMN_ERROR_NOMEM) { - tokcount = tokcount * 2; - tok = realloc_it(tok, sizeof(*tok) * tokcount); - if (tok == NULL) { - return 3; - } - goto again; - } - } else { - dump(js, tok, p.toknext, 0); - eof_expected = 1; - } - } - - return EXIT_SUCCESS; -} |