improve C++ code formatting

Author: Franz Detro

docs/channel_voice_message.md

@@ -13,71 +13,87 @@ Code examples can be found in [`channel_voice_message.examples.cpp`](channel_voi
 
 Available filter functions are:
 
-    bool is_channel_voice_message_with_status(const universal_packet&, status_t);
-
-    bool is_note_on_message(const universal_packet&);
-    bool is_note_off_message(const universal_packet&);
-    bool is_poly_pressure_message(const universal_packet&);
-    bool is_control_change_message(const universal_packet&);
-    bool is_program_change_message(const universal_packet&);
-    bool is_channel_pressure_message(const universal_packet&);
-    bool is_channel_pitch_bend_message(const universal_packet&);
+```cpp
+bool is_channel_voice_message_with_status(const universal_packet&, status_t);
+
+bool is_note_on_message(const universal_packet&);
+bool is_note_off_message(const universal_packet&);
+bool is_poly_pressure_message(const universal_packet&);
+bool is_control_change_message(const universal_packet&);
+bool is_program_change_message(const universal_packet&);
+bool is_channel_pressure_message(const universal_packet&);
+bool is_channel_pitch_bend_message(const universal_packet&);
+````
 
 Additionally, one may use
 
-    bool is_note_on_with_attribute(const universal_packet&, uint8_t);
-    bool is_note_off_with_attribute(const universal_packet&, uint8_t);
-    bool is_note_on_with_pitch_7_9(const universal_packet&);
+```cpp
+bool is_note_on_with_attribute(const universal_packet&, uint8_t);
+bool is_note_off_with_attribute(const universal_packet&, uint8_t);
+bool is_note_on_with_pitch_7_9(const universal_packet&);
+```
 
 to check for MIDI 2 note messages with attributes.
 
 ## Note Message Properties
 
 The following functions are available to extract properties from Note messages:
 
-    note_nr_t get_note_nr(const universal_packet&);
-    pitch_7_9 get_note_pitch(const universal_packet&);
-    velocity  get_note_velocity(const universal_packet&);
+```cpp
+note_nr_t get_note_nr(const universal_packet&);
+pitch_7_9 get_note_pitch(const universal_packet&);
+velocity  get_note_velocity(const universal_packet&);
+```
 
 `get_note_nr` is applicable to _Poly Pressure_ and _Per-Note Controller_ messages, too.
 
 Additionally, one may use
 
-    uint8_t  get_midi2_note_attribute(const universal_packet&);
-    uint16_t get_midi2_note_attribute_data(const universal_packet&);
+```cpp
+uint8_t  get_midi2_note_attribute(const universal_packet&);
+uint16_t get_midi2_note_attribute_data(const universal_packet&);
+```
 
 to retrieve Per Note Attribute type and data.
 
 ## Controller Message Properties
 
 Use
 
-    controller_t     get_controller_nr(const universal_packet&);
-    controller_value get_controller_value(const universal_packet&);
+```cpp
+controller_t     get_controller_nr(const universal_packet&);
+controller_value get_controller_value(const universal_packet&);
+```
 
 to extract _Control Change_ message properties.
 
 `get_controller_value` is applicable to _Poly Pressure_, _Registered/Assignable Controller_ and _Per-Note Controller_ messages, too.
 
 Use these functions to retrieve properties of specific messages:
 
-    controller_value get_poly_pressure_value(const universal_packet&);
-    uint7_t get_program_value(const universal_packet&);
-    controller_value get_channel_pressure_value(const universal_packet&);
-    pitch_bend get_channel_pitch_bend_value(const universal_packet&);
+```cpp
+controller_value get_poly_pressure_value(const universal_packet&);
+uint7_t get_program_value(const universal_packet&);
+controller_value get_channel_pressure_value(const universal_packet&);
+pitch_bend get_channel_pitch_bend_value(const universal_packet&);
+```
 
 ## Conversion between Protocols
 
 One may use
 
-    std::optional<midi1_channel_voice_message>
-    as_midi1_channel_voice_message(const midi2_channel_voice_message_view&);
+```cpp
+std::optional<midi1_channel_voice_message>
+as_midi1_channel_voice_message(const midi2_channel_voice_message_view&);
+```
 
 to convert a MIDI 2 Channel Voice Message to its MIDI 1 counterpart and
 
-    std::optional<midi2_channel_voice_message>
-    as_midi2_channel_voice_message(const midi1_channel_voice_message_view&);
+```cpp
+std::optional<midi2_channel_voice_message>
+as_midi2_channel_voice_message(const midi1_channel_voice_message_view&);
+```
 
 to convert a MIDI 1 Channel Voice Message to its MIDI 2 counterpart.
 
-**Note:** MIDI 1 <-> MIDI 2 translation rules do require some sequences of MIDI 1 messages to be translated to single MIDI 2 messages and vice versa. The above mentioned functions do not follow these rules. Actually they filter some _Control Change_ messages (mostly related to (N)RPNs) and cannot handle MIDI 2 _Program Change_ messages with  `bank` data.
+**Note:** MIDI 1 <-> MIDI 2 translation rules do require some sequences of MIDI 1 messages to be translated to single MIDI 2 messages and vice versa. The above mentioned functions do not follow these rules. Actually they filter some _Control Change_ messages (mostly related to (N)RPNs) and cannot handle MIDI 2 _Program Change_ messages with  `bank` data.

docs/data_message.md

@@ -6,63 +6,75 @@ Code examples can be found in [`data_message.examples.cpp`](data_message.example
 
 Data Messages are represented by a
 
-    struct data_message : universal_packet
-    {
-        explicit data_message(status_t);
-    };
+```cpp
+struct data_message : universal_packet
+{
+    explicit data_message(status_t);
+};
+```
 
 Usually one will not use this class directly, but instead
 
-    struct sysex7_packet : data_message
-    {
-        sysex7_packet(status_t, group_t);
+```cpp
+struct sysex7_packet : data_message
+{
+    sysex7_packet(status_t, group_t);
 
-        packet_format format() const;
+    packet_format format() const;
 
-        uint8_t payload_byte(size_t b) const;
-        void    set_payload_byte(size_t, uint8_t);
+    uint8_t payload_byte(size_t b) const;
+    void    set_payload_byte(size_t, uint8_t);
 
-        size_t payload_size() const;
-        void   set_payload_size(size_t);
+    size_t payload_size() const;
+    void   set_payload_size(size_t);
 
-        void add_payload_byte(uint8_t);
-    };
+    void add_payload_byte(uint8_t);
+};
+```
 
 A `sysex7_packet` can hold a payload of up to six bytes and provides APIs to add or read the payload bytes. Be aware that the payload shall only be 7 bit data.
 
 Instead of using sysex7_packet constructors one can create messages using factory functions:
 
-    sysex7_packet make_sysex7_complete_packet(group_t);
-    sysex7_packet make_sysex7_start_packet(group_t);
-    sysex7_packet make_sysex7_continue_packet(group_t);
-    sysex7_packet make_sysex7_end_packet(group_t);
+```cpp
+sysex7_packet make_sysex7_complete_packet(group_t);
+sysex7_packet make_sysex7_start_packet(group_t);
+sysex7_packet make_sysex7_continue_packet(group_t);
+sysex7_packet make_sysex7_end_packet(group_t);
+```
 
 Filtering of Data Messages can be done checking `universal_packet::type()` against
 `packet_type::data` or use
 
-    bool is_data_message(const universal_packet&);
-    bool is_sysex7_packet(const universal_packet&);
+```cpp
+bool is_data_message(const universal_packet&);
+bool is_sysex7_packet(const universal_packet&);
+```
 
 ### SysEx7 Packet View
 
 Once validated being a `sysex7` packet one can create a `sysex7_packet_view`
 for a `universal_packet`:
 
-    struct sysex7_packet_view
-    {
-        explicit sysex7_packet_view(const universal_packet&);
+```cpp
+struct sysex7_packet_view
+{
+    explicit sysex7_packet_view(const universal_packet&);
 
-        group_t       group() const;
-        status_t      status() const;
-        packet_format format() const;
-        size_t        payload_size() const;
-        uint8_t       payload_byte(size_t b) const;
-    };
+    group_t       group() const;
+    status_t      status() const;
+    packet_format format() const;
+    size_t        payload_size() const;
+    uint8_t       payload_byte(size_t b) const;
+};
+```
 
 View members provide accessors to the properties of the message.
 
 The additional
 
-    std::optional<sysex7_packet_view> as_sysex7_packet_view(const universal_packet&);
+```cpp
+std::optional<sysex7_packet_view> as_sysex7_packet_view(const universal_packet&);
+```
 
 helper allows to combine packet type check and view creation in a single statement.

docs/extended_data_message.md

@@ -6,30 +6,34 @@ Code examples can be found in [`extended_data_message.examples.cpp`](extended_da
 
 Extended Data Messages are represented by a
 
-    struct extended_data_message : universal_packet
-    {
-        explicit extended_data_message(status_t);
-    };
+```cpp
+struct extended_data_message : universal_packet
+{
+    explicit extended_data_message(status_t);
+};
+```
 
 Usually one will not use this class directly, but instead
 
-    struct sysex8_packet : extended_data_message
-    {
-        sysex8_packet(status_t, uint8_t stream_id, group_t);
+```cpp
+struct sysex8_packet : extended_data_message
+{
+    sysex8_packet(status_t, uint8_t stream_id, group_t);
 
-        packet_format format() const;
+    packet_format format() const;
 
-        uint8_t stream_id() const;
-        void    set_stream_id(uint8_t);
+    uint8_t stream_id() const;
+    void    set_stream_id(uint8_t);
 
-        uint8_t payload_byte(size_t b) const;
-        void    set_payload_byte(size_t, uint8_t);
+    uint8_t payload_byte(size_t b) const;
+    void    set_payload_byte(size_t, uint8_t);
 
-        size_t payload_size() const;
-        void   set_payload_size(size_t);
+    size_t payload_size() const;
+    void   set_payload_size(size_t);
 
-        void add_payload_byte(uint8_t);
-    };
+    void add_payload_byte(uint8_t);
+};
+```
 
 A `sysex8_packet` can hold a payload of up to 13 bytes and provides APIs to add or read the payload bytes.
 System Exclusive 8 packets payload is allowed to be 8 bit, different to traditional MIDI System Exclusive (7 bit).
@@ -38,37 +42,45 @@ In MIDI 2 is allowed to have multiple parallel System Exclusive 8 streams runnin
 
 Instead of using sysex8_packet constructors one can create messages using factory functions:
 
-    sysex8_packet make_sysex8_complete_packet(uint8_t stream_id, group_t);
-    sysex8_packet make_sysex8_start_packet(uint8_t stream_id, group_t);
-    sysex8_packet make_sysex8_continue_packet(uint8_t stream_id, group_t);
-    sysex8_packet make_sysex8_end_packet(uint8_t stream_id, group_t);
+```cpp
+sysex8_packet make_sysex8_complete_packet(uint8_t stream_id, group_t);
+sysex8_packet make_sysex8_start_packet(uint8_t stream_id, group_t);
+sysex8_packet make_sysex8_continue_packet(uint8_t stream_id, group_t);
+sysex8_packet make_sysex8_end_packet(uint8_t stream_id, group_t);
+```
 
 Filtering of Extended Data Messages can be done checking `universal_packet::type()` against
 `packet_type::extended_data` or use
 
-    bool is_extended_data_message(const universal_packet&);
-    bool is_sysex8_packet(const universal_packet&);
+```cpp
+bool is_extended_data_message(const universal_packet&);
+bool is_sysex8_packet(const universal_packet&);
+```
 
 ### SysEx8 Packet View
 
 Once validated being a `sysex8` packet one can create a `sysex8_packet_view`
 for a `universal_packet`:
 
-    struct sysex8_packet_view
-    {
-        explicit sysex8_packet_view(const universal_packet&);
+```cpp
+struct sysex8_packet_view
+{
+    explicit sysex8_packet_view(const universal_packet&);
 
-        group_t       group() const;
-        packet_format format() const;
-        uint8_t       stream_id() const;
-        size_t        payload_size() const;
-        uint8_t       payload_byte(size_t b) const;
-    };
+    group_t       group() const;
+    packet_format format() const;
+    uint8_t       stream_id() const;
+    size_t        payload_size() const;
+    uint8_t       payload_byte(size_t b) const;
+};
+```
 
 View members provide accessors to the properties of the message.
 
 The additional
 
-    std::optional<sysex8_packet_view> as_sysex8_packet_view(const universal_packet&);
+```cpp
+std::optional<sysex8_packet_view> as_sysex8_packet_view(const universal_packet&);
+```
 
 helper allows to combine packet type check and view creation in a single statement.

docs/flex_data_message.md

@@ -4,7 +4,7 @@ Code examples can be found in [`flex_data_message.examples.cpp`](flex_data_messa
 
 ## Message Creation and Filtering
 
-Flex Data Messages are represented by a
+_Flex Data Messages_ are represented by a
 
 ```cpp
 struct flex_data_message : universal_packet
@@ -59,7 +59,7 @@ Be aware that a single `flex_data_text_message` can hold only 12 characters, if
 using the `packet_format` mechanism (`start`, `cont`, `end`).
 
 Be also aware that the `denominator` in a _Set Time Signature_ message is expressed as a negative power of two, meaning that
-`2` represents a quarter note, `3` and eights note and so on.
+`2` represents a quarter note, `3` an eights note and so on.
 
 Filtering of _Flex Data Messages_ can be done checking `universal_packet::type()` against
 `packet_type::flex_data` or use