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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:51:24 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:51:24 +0000 |
commit | f7548d6d28c313cf80e6f3ef89aed16a19815df1 (patch) | |
tree | a3f6f2a3f247293bee59ecd28e8cd8ceb6ca064a /src/lib/json-tree.h | |
parent | Initial commit. (diff) | |
download | dovecot-f7548d6d28c313cf80e6f3ef89aed16a19815df1.tar.xz dovecot-f7548d6d28c313cf80e6f3ef89aed16a19815df1.zip |
Adding upstream version 1:2.3.19.1+dfsg1.upstream/1%2.3.19.1+dfsg1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/lib/json-tree.h')
-rw-r--r-- | src/lib/json-tree.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/lib/json-tree.h b/src/lib/json-tree.h new file mode 100644 index 0000000..a995c75 --- /dev/null +++ b/src/lib/json-tree.h @@ -0,0 +1,62 @@ +#ifndef JSON_TREE_H +#define JSON_TREE_H + +#include "json-parser.h" + +/* Direct access to this structure is not encouraged, use the inline + function accessors where possible, so that the implementation + details can remain fluid, or, even better, hidden. */ +struct json_tree_node { + /* object key, or NULL if we're in a list */ + const char *key; + struct json_tree_node *parent, *next; + + enum json_type value_type; + struct { + /* for JSON_TYPE_OBJECT and JSON_TYPE_ARRAY */ + struct json_tree_node *child; + /* for other types */ + const char *str; + } value; +}; +static inline ATTR_PURE const struct json_tree_node *json_tree_get_child(const struct json_tree_node *node) +{ + return node->value.child; +} +static inline ATTR_PURE const char *json_tree_get_value_str(const struct json_tree_node *node) +{ + return node->value.str; +} + +/* You can build a list or an object, nothing else. */ +struct json_tree *json_tree_init_type(enum json_type container); +static inline struct json_tree *json_tree_init(void) +{ + return json_tree_init_type(JSON_TYPE_OBJECT); +} +static inline struct json_tree *json_tree_init_array(void) +{ + return json_tree_init_type(JSON_TYPE_ARRAY); +} + +void json_tree_deinit(struct json_tree **tree); + +/* Append data to a tree. The type/value should normally come from json-parser. + Returns 0 on success, -1 if the input was invalid (which should never happen + if it's coming from json-parser). */ +int json_tree_append(struct json_tree *tree, enum json_type type, + const char *value); + +/* Return the root node. */ +const struct json_tree_node * +json_tree_root(const struct json_tree *tree); +/* Find a node with the specified key from an OBJECT node */ +const struct json_tree_node * +json_tree_find_key(const struct json_tree_node *node, const char *key); +/* Find an object node (from an array), which contains the specified key=value + in its values. */ +const struct json_tree_node * +json_tree_find_child_with(const struct json_tree_node *node, + const char *key, const char *value); + +#endif |