Dear Simon Glass,
In message 20211001183842.v5.4.Ie78bfbfca0d01d9cba501e127f446ec48e1f7afe@changeid you wrote:
In many cases environment variables need access to the U-Boot CONFIG variables to select different options. Enable this so that the environment scripts can be as useful as the ones currently in the board config files.
Also support += to allow variables to be appended to. This is needed when using the preprocessor.
Signed-off-by: Simon Glass sjg@chromium.org
(no changes since v4)
Changes in v4:
- Add documentation in rST format instead of README
- Move use of += to this patch
- Explain that environment variables may not end in +
Sorry, I disagree here. There was intentionally only very little restrictions on what a environment variable name should look like - the only exceptions were the '=' and the NUL characters.
Adding artificial restrictions now just to enable your custom notation for appending seems not acceptable to me. You might want to chose a different notation or implement a proper parser instead.
Thanks.
Wolfgang Denk