diff options
Diffstat (limited to 'example/jsondump.c')
| -rw-r--r-- | example/jsondump.c | 200 |
1 files changed, 104 insertions, 96 deletions
diff --git a/example/jsondump.c b/example/jsondump.c index a9f2c92..1eb6206 100644 --- a/example/jsondump.c +++ b/example/jsondump.c @@ -1,9 +1,9 @@ +#include "../jsmn.h" +#include <errno.h> #include <stdio.h> #include <stdlib.h> -#include <unistd.h> #include <string.h> -#include <errno.h> -#include "../jsmn.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 @@ -12,12 +12,12 @@ * 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; + void *p = realloc(ptrmem, size); + if (!p) { + free(ptrmem); + fprintf(stderr, "realloc(): errno=%d\n", errno); + } + return p; } /* @@ -26,101 +26,109 @@ static inline void *realloc_it(void *ptrmem, size_t size) { */ static int dump(const char *js, jsmntok_t *t, size_t count, int indent) { - int i, j, k; - 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(" "); - j += dump(js, t+1+j, count-j, indent+1); - 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 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]; + 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; + jsmn_parser p; + jsmntok_t *tok; + size_t tokcount = 2; - /* Prepare parser */ - jsmn_init(&p); + /* 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; - } + /* 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; - } - } + 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; + 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; - } - } + 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; + return EXIT_SUCCESS; } |