[GitHub] andrzej-kaczmarek opened a new pull request #273: Allow to specify setting value range

[GitBox <gi...@apache.org>]

andrzej-kaczmarek opened a new pull request #273: Allow to specify setting value range
URL: https://github.com/apache/mynewt-newt/pull/273
 
 
   This allows to specify allowed range for numeric syscfg values in a simple way instead of requiring complex expressions. It allows for any combinations of discrete values and value ranges to be used in single restriction.
   
   `range` value is comma-separated list of ranges and discrete values which is then converted to proper expression and evaluated, for example:
   ```
       range: 1,2,4,8
       range: 0,10-15
       range: 5-10,15-20,99
   ```
   Also it is possible to reference other settings:
   ````
       BLE_LL_MAX_PKT_SIZE:
           value: '251'
           range: 27-251
       BLE_LL_SUPP_MAX_RX_BYTES:
           value: 'MYNEWT_VAL(BLE_LL_MAX_PKT_SIZE)'
           range: 27-BLE_LL_MAX_PKT_SIZE
       BLE_LL_SUPP_MAX_TX_BYTES:
           value: 'MYNEWT_VAL(BLE_LL_MAX_PKT_SIZE)'
           range: 27-BLE_LL_MAX_PKT_SIZE
       BLE_LL_CONN_INIT_MAX_TX_BYTES:
           value: '27'
           range: 27-BLE_LL_SUPP_MAX_TX_BYTES
   ```

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