acassis opened a new pull request, #3657:
URL: https://github.com/apache/nuttx-apps/pull/3657
## Summary
One missing feature on nsh> is the ability to command line editing. If the
user make a mistake at the beginning of the line he/she needs to erase all
characters until arrive there and fix the typo.
Now the user can use the arrow keys to move until the mistake and fix it.
This feature adds less than 700 bytes to the firmware (only Line Edit is
enabled by default)
```
original stm32f103-minimum:nsh without edit edit, emacs, TAB and History
support:
alan@dev:~/nuttxspace/nuttx$ arm-none-eabi-size nuttx
text data bss dec hex filename
51192 472 2952 54616 d558 nuttx
With: Line Edit, Without Emacs, TAB, History:
$ arm-none-eabi-size nuttx
text data bss dec hex filename
51844 472 2956 55272 d7e8 nuttx
With: Line Edit and Emacs, Without TAB, History:
$ arm-none-eabi-size nuttx
text data bss dec hex filename
52220 472 2956 55648 d960 nuttx
With: Line Edit, Emacs and TAB, Without History
$ arm-none-eabi-size nuttx
text data bss dec hex filename
52756 472 2960 56188 db7c nuttx
With: Line Edit, Emacs, TAB and History, Without: Reverse Search
$ arm-none-eabi-size nuttx
text data bss dec hex filename
53060 472 3228 56760 ddb8 nuttx
With: Line Edit, Emacs, TAB, History and Reverse Search
$ arm-none-eabi-size nuttx
text data bss dec hex filename
53896 472 3228 57596 e0fc nuttx
```
## Impact
User will be able to use the nsh> more efficiently
## Testing
Line editing:
<img width="902" height="192" alt="image"
src="https://github.com/user-attachments/assets/a9566729-5f07-461f-857f-4b051ebbe103";
/>
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