From 830407e88f9d40d954356c3754f2647f91d5c06a Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 17:26:00 +0200 Subject: Adding upstream version 5.6.0. Signed-off-by: Daniel Baumann --- contrib/ccan/json/json.h | 99 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 contrib/ccan/json/json.h (limited to 'contrib/ccan/json/json.h') diff --git a/contrib/ccan/json/json.h b/contrib/ccan/json/json.h new file mode 100644 index 0000000..6eef48a --- /dev/null +++ b/contrib/ccan/json/json.h @@ -0,0 +1,99 @@ +/* SPDX-License-Identifier: MIT + * Source: https://ccodearchive.net/info/json.html + * Copyright (C) 2011 Joseph A. Adams (joeyadams3.14159@gmail.com) */ + +#ifndef CCAN_JSON_H +#define CCAN_JSON_H + +#include +#include +#include + +typedef enum { + JSON_NULL, + JSON_BOOL, + JSON_STRING, + JSON_NUMBER, + JSON_ARRAY, + JSON_OBJECT, +} JsonTag; + +typedef struct JsonNode JsonNode; + +struct JsonNode +{ + /* only if parent is an object or array (NULL otherwise) */ + JsonNode *parent; + JsonNode *prev, *next; + + /* only if parent is an object (NULL otherwise) */ + char *key; /* Must be valid UTF-8. */ + + JsonTag tag; + union { + /* JSON_BOOL */ + bool bool_; + + /* JSON_STRING */ + char *string_; /* Must be valid UTF-8. */ + + /* JSON_NUMBER */ + double number_; + + /* JSON_ARRAY */ + /* JSON_OBJECT */ + struct { + JsonNode *head, *tail; + } children; + }; +}; + +/*** Encoding, decoding, and validation ***/ + +KR_EXPORT JsonNode *json_decode (const char *json); +KR_EXPORT char *json_encode (const JsonNode *node); +KR_EXPORT char *json_encode_string (const char *str); +KR_EXPORT char *json_stringify (const JsonNode *node, const char *space); +KR_EXPORT void json_delete (JsonNode *node); + +KR_EXPORT bool json_validate (const char *json); + +/*** Lookup and traversal ***/ + +KR_EXPORT JsonNode *json_find_element (JsonNode *array, int index); +KR_EXPORT JsonNode *json_find_member (JsonNode *object, const char *key); + +KR_EXPORT JsonNode *json_first_child (const JsonNode *node); + +#define json_foreach(i, object_or_array) \ + for ((i) = json_first_child(object_or_array); \ + (i) != NULL; \ + (i) = (i)->next) + +/*** Construction and manipulation ***/ + +KR_EXPORT JsonNode *json_mknull(void); +KR_EXPORT JsonNode *json_mkbool(bool b); +KR_EXPORT JsonNode *json_mkstring(const char *s); +KR_EXPORT JsonNode *json_mknumber(double n); +KR_EXPORT JsonNode *json_mkarray(void); +KR_EXPORT JsonNode *json_mkobject(void); + +KR_EXPORT void json_append_element(JsonNode *array, JsonNode *element); +KR_EXPORT void json_prepend_element(JsonNode *array, JsonNode *element); +KR_EXPORT void json_append_member(JsonNode *object, const char *key, JsonNode *value); +KR_EXPORT void json_prepend_member(JsonNode *object, const char *key, JsonNode *value); + +KR_EXPORT void json_remove_from_parent(JsonNode *node); + +/*** Debugging ***/ + +/* + * Look for structure and encoding problems in a JsonNode or its descendents. + * + * If a problem is detected, return false, writing a description of the problem + * to errmsg (unless errmsg is NULL). + */ +KR_EXPORT bool json_check(const JsonNode *node, char errmsg[256]); + +#endif -- cgit v1.2.3