From e079370a92766181ff5281c5d6cea03a1fce5b93 Mon Sep 17 00:00:00 2001
From: "Anna (navi) Figueiredo Gomes" <navi@vlhl.dev>
Date: Fri, 5 Jan 2024 22:51:33 +0100
Subject: initial release

Signed-off-by: Anna (navi) Figueiredo Gomes <navi@vlhl.dev>
---
 include/json.h | 136 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100644 include/json.h

(limited to 'include/json.h')

diff --git a/include/json.h b/include/json.h
new file mode 100644
index 0000000..9257ff2
--- /dev/null
+++ b/include/json.h
@@ -0,0 +1,136 @@
+#ifndef _JSON_H_
+#define _JSON_H_
+
+#include <stdlib.h>
+#include <stdbool.h>
+
+struct json {
+	char *key;
+	size_t index;
+	enum {
+		JSON_FALSE,
+		JSON_TRUE,
+		JSON_OBJECT,
+		JSON_ARRAY,
+		JSON_STRING,
+		JSON_NUMBER,
+		JSON_NULL,
+		JSON_INVALID
+	} type;
+	union {
+		struct json_children {
+			size_t nitems, maxitems;
+			struct json *items[];
+		} *children;
+		char *string;
+		double num;
+	};
+
+	struct json *parent;
+	struct json *prev, *next;
+};
+
+enum json_parse_result {
+	JSON_PARSE_OK,
+	JSON_PARSE_INVALID_TOKEN_ERR,
+	JSON_PARSE_EXPECTED_VALUE_ERR,
+	JSON_PARSE_OBJECT_EXPECTED_VALUE_ERR,
+	JSON_PARSE_OBJECT_INVALID_KEY_ERR,
+	JSON_PARSE_MAX_DEPTH_ERR,
+	JSON_PARSE_INVALID_NUMBER_ERR,
+	JSON_PARSE_INVALID_STRING_ERR,
+	JSON_PARSE_STRING_INVALID_ESCAPE_ERR,
+	JSON_PARSE_STRING_INVALID_UNICODE_ERR,
+	JSON_PARSE_STRING_INVALID_ERR,
+	JSON_OOM
+};
+
+struct json *json_parse(const char *str);
+struct json *json_parse_len(const char *str, size_t size);
+
+struct json *json_new(void);
+
+void json_clear(struct json *json);
+void json_detach(struct json *json);
+void json_delete(struct json *json);
+
+/* ====== json object ====== */
+
+struct json *json_new_object(void);
+bool json_object_add(struct json *dest, const char *key, struct json *src);
+
+struct json *json_object_get(const struct json *obj, const char *key);
+struct json *json_object_getn(const struct json *obj, const char *key, size_t n);
+
+struct json *json_object_add_object(struct json *dest, const char *key);
+struct json *json_object_add_array(struct json *dest, const char *key);
+struct json *json_object_add_number(struct json *dest, const char *key, double num);
+struct json *json_object_add_string(struct json *dest, const char *key, const char *string);
+struct json *json_object_add_bool(struct json *dest, const char *key, bool boolean);
+struct json *json_object_add_null(struct json *dest, const char *key);
+
+struct json *json_object_detach(struct json *json, const char *key);
+void json_object_delete(struct json *json, const char *key);
+
+/* ====== json array ====== */
+
+struct json *json_new_array(void);
+bool json_array_append(struct json *dest, struct json *src);
+
+struct json *json_array_get(const struct json *array, size_t index);
+
+struct json *json_array_add_object(struct json *dest);
+struct json *json_array_add_array(struct json *dest);
+struct json *json_array_add_number(struct json *dest, double num);
+struct json *json_array_add_string(struct json *dest, const char *string);
+struct json *json_array_add_bool(struct json *dest, bool boolean);
+struct json *json_array_add_null(struct json *dest);
+
+struct json *json_array_detach(struct json *json, size_t index);
+void json_array_delete(struct json *json, size_t index);
+
+/* ====== json string ====== */
+
+struct json *json_new_string(void);
+struct json *json_new_string_copy(const char *string);
+char *json_string_get(const struct json *string);
+const char *json_string_get_const(const struct json *string);
+
+void json_string_set(struct json *dest, const char *string);
+
+/* ====== json literals ====== */
+
+struct json *json_new_number(double number);
+struct json *json_new_bool(bool boolean);
+struct json *json_new_null(void);
+
+char *json_print(struct json *json);
+
+#define json_foreach(e, o) \
+	for (e = o->children->items[0]; e; e = e->next)
+
+static inline bool json_is_object(struct json *json) {
+	return json && json->type == JSON_OBJECT;
+}
+
+static inline bool json_is_array(struct json *json) {
+	return json && json->type == JSON_ARRAY;
+}
+
+static inline bool json_is_number(struct json *json) {
+	return json && json->type == JSON_NUMBER;
+}
+
+static inline bool json_is_string(struct json *json) {
+	return json && json->type == JSON_STRING;
+}
+
+static inline bool json_is_bool(struct json *json) {
+	return json && (json->type == JSON_TRUE || json->type == JSON_FALSE);
+}
+
+static inline bool json_is_null(struct json *json) {
+	return json && json->type == JSON_NULL;
+}
+
+#endif
-- 
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