diff options
Diffstat (limited to 'json/jsonparse.c')
| -rw-r--r-- | json/jsonparse.c | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/json/jsonparse.c b/json/jsonparse.c new file mode 100644 index 0000000..6cfae2e --- /dev/null +++ b/json/jsonparse.c @@ -0,0 +1,167 @@ +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <stdint.h> + +#include <jsonparse.h> + +void substr_token (char *json, char *temp, jsmntok_t *t) { + memcpy(temp, json+t->start, t->end - t->start); + temp[t->end-t->start] = '\0'; +} + +void json_parse_array(char *json, void *temp, jsmntok_t *t, int r, char type) { + for (int i=0; i<r; i++) { + if (t[i].type == JSMN_PRIMITIVE) { + char val[32]; substr_token(json, val, t+i); + if (type == 'i') { + int *p = (int*)(intptr_t)temp+sizeof(int)*i; + *p = atoi(val); + } + if (type == 'c') { + int8_t *p = (int8_t*)(intptr_t)temp+sizeof(int8_t)*i; + *p = atoi(val); + } + } + } +} + +void json_dump_array (char *str, void *arr, int len, char type) { + int cur = 0; + sprintf(str+cur, "[ "); cur = strlen(str); + for (int i=0; i<len; i++) { + if (type == 'i') { + sprintf(str+cur, "%d", (int)(intptr_t)(arr+i*sizeof(int))); + cur = strlen(str); + } + if (type == 'c') { + printf("%d\n", ((int8_t*)(intptr_t)(arr))[i]); + sprintf(str+cur, "%d", ((int8_t*)(intptr_t)(arr))[i]); + cur = strlen(str); + } + if (i < len-1) { + sprintf(str+cur, ", "); cur = strlen(str); + } + } + sprintf(str+cur, " ]"); +} + +int json_parse_subtokens (char *json, jsmntok_t *t, int r, int i) { + int rt = 0; + for (int j=i; j<r; j++) { + if (t[j].start < t[i].end) { rt ++; } + else { break; } + } + return rt; +} + +/* DEPRECATED TRIALS, delete after backup +// parses a <str, int> pair set with a set of already parsed tokens +int json_parse_dict_ci_init (char *json, + pair_ci *dict, jsmntok_t *t, int r) { + int obj_i = 0, dict_i = -1; + for (int i=0; i<r; i++) { + if (t[i].type == JSMN_OBJECT) { + dict_i ++; + obj_i = 0; + } + if (t[i].type == JSMN_STRING) { + if (obj_i == 0) { + substr_token(json, dict[dict_i].key, t+i); + } else if (obj_i == 1) { + char ts[13]; substr_token(json, ts, t+i); + dict[dict_i].i = atoi(ts); + } + obj_i++; + } + } + return dict_i+1; +} + +// parses a <str, int> pair set with a set of already parsed tokens +int json_parse_dict_cf_init (char *json, + pair_cf *dict, jsmntok_t *t, int r) { + int obj_i = 0, dict_i = -1; + for (int i=0; i<r; i++) { + if (t[i].type == JSMN_OBJECT) { + dict_i ++; + obj_i = 0; + } + if (t[i].type == JSMN_STRING) { + if (obj_i == 0) { + substr_token(json, dict[dict_i].key, t+i); + } else if (obj_i == 1) { + char ts[13]; substr_token(json, ts, t+i); + dict[dict_i].i = atof(ts); + } + obj_i++; + } + } + return dict_i+1; +} + + +// parses a <str, int> pair set +int json_parse_dict_ci (char *json, pair_ci *dict) { + jsmn_parser p; jsmn_init(&p); + jsmntok_t t[MAXTOKENS]; + int r = jsmn_parse(&p, json, strlen(json), t, MAXTOKENS); + json_parse_dict_ci_init(json, dict, t, r); +} + +// parses a <str, float> pair set +int json_parse_dict_cf (char *json, pair_cf *dict) { + jsmn_parser p; jsmn_init(&p); + jsmntok_t t[MAXTOKENS]; + int r = jsmn_parse(&p, json, strlen(json), t, MAXTOKENS); + json_parse_dict_cf_init(json, dict, t, r); +} + + + +// parses a list of objects which are lists of pairs <str, int> +int json_parse_list_ci (char *json, list_ci *list) { + jsmn_parser p; jsmn_init(&p); + jsmntok_t t[MAXTOKENS]; + int r = jsmn_parse(&p, json, strlen(json), t, MAXTOKENS); + int list_i = 0; + for (int i=1; i<r; i++) { // i=1: ignore outer [] + if (t[i].type == JSMN_ARRAY) { + int rt = 0; + for (int j=i; j<r; j++) { + if (t[j].start < t[i].end) { rt ++; } + else { break; } + } + int len = json_parse_dict_ci_init( + json, list[list_i].pairs, t+i, rt); + list[list_i].len = len; + list_i ++; + i += rt-1; + } + } + return list_i; +} + +// parses a list of objects which are lists of pairs <str, float> +int json_parse_list_cf (char *json, list_cf *list) { + jsmn_parser p; jsmn_init(&p); + jsmntok_t t[MAXTOKENS]; + int r = jsmn_parse(&p, json, strlen(json), t, MAXTOKENS); + int list_i = 0; + for (int i=1; i<r; i++) { // i=1: ignore outer [] + if (t[i].type == JSMN_ARRAY) { + int rt = 0; + for (int j=i; j<r; j++) { + if (t[j].start < t[i].end) { rt ++; } + else { break; } + } + int len = json_parse_dict_cf_init( + json, list[list_i].pairs, t+i, rt); + list[list_i].len = len; + list_i ++; + i += rt-1; + } + } + return list_i; +} +*/
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