doc BUGFIX fix ly_in and ly_out invalid links

Author: michalvasko

src/context.h

@@ -139,7 +139,7 @@ struct lys_module;
  *
  * Structures and functions to manipulate with the libyang context containers.
  *
- * The \em context concept allows callers to work in environments with different sets of YANG schemas.
+ * The @em context concept allows callers to work in environments with different sets of YANG schemas.
  * More detailed information can be found at @ref howtoContext page.
  */
 

src/in.h

@@ -1,9 +1,10 @@
 /**
  * @file in.h
  * @author Radek Krejci <[email protected]>
+ * @author Michal Vasko <[email protected]>
  * @brief libyang input structures and functions
  *
- * Copyright (c) 2020 CESNET, z.s.p.o.
+ * Copyright (c) 2020 - 2025 CESNET, z.s.p.o.
  *
  * This source code is licensed under BSD 3-Clause License (the "License").
  * You may not use this file except in compliance with the License.
@@ -70,9 +71,18 @@ extern "C" {
  * - @subpage howtoDataParsers
  */
 
+/**
+ * @defgroup input Input handler
+ * @{
+ *
+ * Structures and functions for input handling.
+ *
+ * The @em input abstraction allows users for transparent use of various input kinds.
+ */
+
 /**
  * @struct ly_in
- * @brief Parser input structure specifying where the data are read.
+ * @brief Parser input structure specifying the type of data input.
  */
 struct ly_in;
 
@@ -245,6 +255,8 @@ LIBYANG_API_DECL LY_ERR ly_in_read(struct ly_in *in, void *buf, size_t count);
  */
 LIBYANG_API_DECL LY_ERR ly_in_skip(struct ly_in *in, size_t count);
 
+/** @} input */
+
 #ifdef __cplusplus
 }
 #endif

src/out.h

@@ -1,9 +1,10 @@
 /**
  * @file out.h
  * @author Radek Krejci <[email protected]>
+ * @author Michal Vasko <[email protected]>
  * @brief libyang output structures and functions
  *
- * Copyright (c) 2015-2020 CESNET, z.s.p.o.
+ * Copyright (c) 2015 - 2025 CESNET, z.s.p.o.
  *
  * This source code is licensed under BSD 3-Clause License (the "License").
  * You may not use this file except in compliance with the License.
@@ -78,9 +79,18 @@ extern "C" {
  * - @subpage howtoDataPrinters
  */
 
+/**
+ * @defgroup output Output handler
+ * @{
+ *
+ * Structures and functions for output handling.
+ *
+ * The @em output abstraction allows users for transparent use of various output kinds.
+ */
+
 /**
  * @struct ly_out
- * @brief Printer output structure specifying where the data are printed.
+ * @brief Printer output structure specifying the type of data output.
  */
 struct ly_out;
 
@@ -309,6 +319,8 @@ LIBYANG_API_DECL size_t ly_out_printed_total(const struct ly_out *out);
  */
 LIBYANG_API_DECL void ly_out_free(struct ly_out *out, void (*clb_arg_destructor)(void *arg), ly_bool destroy);
 
+/** @} output */
+
 #ifdef __cplusplus
 }
 #endif

src/tree_data.h

@@ -2172,7 +2172,7 @@ LIBYANG_API_DECL LY_ERR lyd_merge_module(struct lyd_node **target, const struct
                                       nodes. Also, leaves and leaf-lists are added into diff even in case only their
                                       default flag (state) was changed. */
 #define LYD_DIFF_META       0x02 /**< All metadata are compared and the full difference reported in the diff always in
-                                      the form of 'yang:meta-<operation>' metadata. Also, equal nodes with only changes
+                                      the form of 'yang:meta-\<operation\>' metadata. Also, equal nodes with only changes
                                       in their metadata will be present in the diff with the 'none' operation. */
 
 /** @} diffoptions */