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-rw-r--r--json.c265
1 files changed, 0 insertions, 265 deletions
diff --git a/json.c b/json.c
deleted file mode 100644
index b02c413..0000000
--- a/json.c
+++ /dev/null
@@ -1,265 +0,0 @@
-#include "json.h"
-
-#include <assert.h>
-#include <ctype.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "json.h"
-#include "string.h"
-#include "types.h"
-
-JSONObject *JSONObject_new(Arena *a) {
- JSONObject *object = new(a, JSONObject, 1);
- object->len = 0;
- object->keys = Vec_new(a, Str, 2);
- object->values = Vec_new(a, JSON, 2);
- return object;
-}
-
-JSON JSON_integer(i32 value) {
- JSON json = {0};
- json.type = JSON_INTEGER;
- json.as.integer = value;
- return json;
-}
-
-JSON JSON_float(f32 value) {
- JSON json = {0};
- json.type = JSON_FLOAT;
- json.as.floating = value;
- return json;
-}
-
-JSON JSON_array(Vec items) {
- JSON json = {0};
- json.type = JSON_ARRAY;
- json.as.array = items;
- return json;
-}
-
-JSON JSON_string(Str value) {
- JSON json = {0};
- json.type = JSON_STRING;
- json.as.string = value;
- return json;
-}
-
-JSON JSON_object(size len, Vec keys, Vec values) {
- assert(len == keys.len && len == values.len);
- JSON json = {0};
- json.type = JSON_OBJECT;
- json.as.object.len = len;
- json.as.object.keys = keys;
- json.as.object.values = values;
- return json;
-}
-
-JSON JSON_boolean(bool value) {
- JSON json = {0};
- json.type = JSON_BOOL;
- json.as.boolean = value;
- return json;
-}
-
-JSON JSON_null() {
- JSON json = {0};
- json.type = JSON_NULL;
- return json;
-}
-
-i32 JSON_fprint(FILE *w, JSON json) {
- switch (json.type) {
- case JSON_STRING:
- fprintf(w, "\"");
- Str_fprint(w, json.as.string);
- return fprintf(w, "\"");
- case JSON_INTEGER:
- return fprintf(w, "%d", json.as.integer);
- case JSON_FLOAT:
- return fprintf(w, "%f", json.as.floating);
- case JSON_NULL:
- return fprintf(w, "null");
- case JSON_BOOL:
- return fprintf(w, "%s", json.as.boolean ? "true" : "false");
- case JSON_ARRAY:
- fprintf(w, "[");
- for (size i = 0; i < json.as.array.len; i++) {
- JSON value = *Vec_get(json.as.array, JSON, i);
- JSON_fprint(w, value);
- if (i < json.as.array.len - 1) fprintf(w, ", ");
- }
- fprintf(w, "]");
- return 0;
- case JSON_OBJECT:
- fprintf(w, "{");
- for (size i = 0; i < json.as.object.len; i++) {
- Str key = *Vec_get(json.as.object.keys, Str, i);
- fprintf(w, "\"");
- Str_fprint(w, key);
- fprintf(w, "\": ");
- JSON value = *Vec_get(json.as.object.values, JSON, i);
- JSON_fprint(w, value);
- if (i < json.as.object.len - 1) fprintf(w, ", ");
- }
- fprintf(w, "}");
- return 0;
- }
- assert(false);
-}
-
-typedef struct {
- JSON value;
- uptr pos;
-} parse_result;
-
-parse_result parse_any(Arena *a, byte *src, uptr pos);
-
-parse_result parse_number(byte *src, uptr start_pos) {
- parse_result result = {0};
- result.pos = start_pos;
- i32 integer = 0;
- while (isdigit(src[result.pos])) {
- integer = integer * 10 + (src[result.pos] - '0');
- result.pos++;
- }
- if (src[result.pos] != '.') {
- result.value = JSON_integer(integer);
- return result;
- }
- result.pos++;
- f32 fractional_part = 0.0;
- f32 decimal_place = 0.1;
- while (isdigit(src[result.pos])) {
- fractional_part += (src[result.pos] - '0') * decimal_place;
- decimal_place *= 0.1;
- result.pos++;
- }
- result.value = JSON_float((f32)integer + fractional_part);
- return result;
-}
-
-uptr absorb_whitespaces(byte *src, uptr start_pos) {
- uptr pos = start_pos;
- while (isspace(src[pos])) {
- pos++;
- }
- return pos;
-}
-
-parse_result parse_array(Arena *a, byte *src, uptr start_pos) {
- assert(src[start_pos] == '[');
- parse_result result = {0};
- result.pos = start_pos + 1;
- if (src[result.pos] == ']') {
- result.pos++;
- return result;
- }
- Vec items = Vec_new(a, JSON, 2);
- for (;;) {
- result.pos = absorb_whitespaces(src, result.pos);
- parse_result item_result = parse_any(a, src, result.pos);
- Vec_push(a, &items, &item_result.value);
- result.pos = absorb_whitespaces(src, item_result.pos);
- if (src[result.pos] == ',') {
- result.pos++;
- } else {
- break;
- }
- };
- assert(src[result.pos] == ']');
- result.pos++;
- result.value = JSON_array(items);
- return result;
-}
-
-parse_result parse_string(Arena *a, byte *src, uptr start_pos) {
- assert(src[start_pos] == '"');
- parse_result result = {0};
- result.pos = start_pos + 1;
-
- while (src[result.pos] != '"' && src[result.pos - 1] != '\\') {
- result.pos++;
- }
- assert(src[result.pos] == '"');
- result.value = JSON_string(
- Str_copy(a, &src[start_pos + 1], result.pos - start_pos - 1));
- result.pos++;
-
- return result;
-}
-
-parse_result parse_object(Arena *a, byte *src, uptr start_pos) {
- assert(src[start_pos] == '{');
- parse_result result = {0};
- result.pos = absorb_whitespaces(src, start_pos + 1);
- size len = 0;
- Vec keys = Vec_new(a, Str, 2);
- Vec values = Vec_new(a, JSON, 2);
- if (src[result.pos] == '}') {
- result.pos++;
- result.value = JSON_object(len, keys, values);
- return result;
- }
- for (;;) {
- assert(src[result.pos] == '"');
- parse_result key_result = parse_string(a, src, result.pos);
- result.pos = absorb_whitespaces(src, key_result.pos);
- assert(src[result.pos] == ':');
- result.pos = absorb_whitespaces(src, result.pos + 1);
- parse_result value_result = parse_any(a, src, result.pos);
- len++;
- assert(key_result.value.type == JSON_STRING);
- Vec_push(a, &keys, &key_result.value.as.string);
- Vec_push(a, &values, &value_result.value);
- result.pos = absorb_whitespaces(src, value_result.pos);
- if (src[result.pos] != ',') {
- break;
- }
- result.pos = absorb_whitespaces(src, result.pos + 1);
- }
- assert(src[result.pos] == '}');
- result.pos++;
- result.value = JSON_object(len, keys, values);
- return result;
-}
-
-parse_result parse_any(Arena *a, byte *src, uptr pos) {
- pos = absorb_whitespaces(src, pos);
- if (isdigit(src[pos])) return parse_number(src, pos);
- if (src[pos] == '[') return parse_array(a, src, pos);
- if (src[pos] == '"') return parse_string(a, src, pos);
- if (src[pos] == '{') return parse_object(a, src, pos);
- if (memcmp(src + pos, "true", 4) == 0) {
- parse_result result = {0};
- result.value = JSON_boolean(true);
- result.pos = pos + 4;
- return result;
- }
- if (memcmp(src + pos, "false", 5) == 0) {
- parse_result result = {0};
- result.value = JSON_boolean(false);
- result.pos = pos + 5;
- return result;
- }
- if (memcmp(src + pos, "null", 4) == 0) {
- parse_result result = {0};
- result.value = JSON_null();
- result.pos = pos + 4;
- return result;
- }
- assert(false);
-}
-
-JSON JSON_parse(Arena *a, byte *src) { return parse_any(a, src, 0).value; }
-
-JSON *JSONObject_get(JSONObject obj, Str key) {
- for (size i = 0; i < obj.len; i++) {
- if (Str_equals(*Vec_get(obj.keys, Str, i), key)) {
- return Vec_get(obj.values, JSON, i);
- }
- }
- assert(false);
-}
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