VT100 commands are now stored as strings rather than character arrays.
This change will make it easier to create a unified macro for sending
all VT100 commands.
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>
Allow the user to disable VT100 commands to have a plain shell
without terminal emulation in order to avoid a lot of garbage
ASCII characters in shell output.
Signed-off-by: Bartosz Bilas <b.bilas@grinn-global.com>
Add Z_SHELL_SET_FLAG_ATOMIC macro to use technique from
shell_process() to atomically set and return the previous
value.
Change all void z_flag_*_set() functions to bool z_flag_*_set()
and use macro to return previous value after setting.
Modify shell_process() to use this modified z_flag_processing_set()
function.
Reorder flags to keep last_nl on byte boundary.
Add public setters for insert_mode, echo, and mode_delete for
completeness.
Signed-off-by: Pete Skeggs <peter.skeggs@nordicsemi.no>
Add flag to shell_flags to control echo as obscure
character (for passwords) or not. Add setter and getter
functions. Modify shell echo to use this flag if set.
Also add public setter for color mode and obscure mode.
Signed-off-by: Pete Skeggs <peter.skeggs@nordicsemi.no>
Shell will display a warning message if there was a request to print
a message on the not initialized shell backend.
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordisemi.no>
Default values were fixed in the code. Moved to Kconfig to allow
customized configuration. Custom configuration may be used to prevent
line breaking injected on terminal width.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
It was possible to deadlock the shell when command
suspended shell's thread and next another thread wanted
to print something on the shell.
To avoid that shell releases mutex before entering command
handler. Due to this change some adapations to shell
internal print functions have been applied.
This change addresses following usecase:
1. A command handler needs to call a (system) function which
communicate results via a callback, and this callback is expected
to print these results. The callback is called by the system from
another thread.
2. To achieve that, the handler needs to pass `struct shell *`
to callbacks, but also some other data specific to callback.
Thus, handles allocates some structure will those fields on
the stack.
3. The handler schedules this callback to be called.
4. As a reference to stack structure is passed to the callback,
the handler can't return immediately (or stack data will go out
of scope and will be overwritten).
5. So, the handler blocks waiting for callback to finish.
Previously, this scenario led to deadlock when the callback
trying or print to shell. With these changes, it just works,
as long as main handler and callback serialize there access
to the shell structure (i.e. when callback prints, the main
handler is blocked waiting for its completion).
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>
Function char_replace is only used in shell_ops.c file.
Added keyword static to function definition and removed
declaration from shell_ops.h
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>
Added following meta-keys:
Ctrl-B - moves the cursor backward one character
Ctrl-D - deletes the character under the cursor
Ctrl-F - moves the cursor forward one character
Ctrl-K - deletes from the cursor to the end of the line
Alt-F - moves the cursor forward one word
Alt-B - moves the cursor backward one word
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>
Removed shell_ prefix from static functions in .c files.
Added static functions for setting and getting shell
internal flags.
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>
shell parses output string and it adds \r for each found \n.
It is no longer needed to keep \r for each shell message.
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>
1. Created new shell module: shell_help.
2. Simplified command handlers with new shell print macros.
3. Removed help functions from command handlers.
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>
New shell support features like:
- multi-instance
- command tree
- static and dynamic commands
- multiline
- help print function
- smart tab (autocompletion)
- meta-keys
- history, wildcards etc.
- generic transport (initially, uart present)
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
