Files
openfoam/applications/test/dictionary/testDictRegex
Mark Olesen efd1ac4b5f ENH: adjust token in preparation for separate expression tokenization
- minor simplification of #if/#endif handling

ENH: improve input robustness with negative-prefixed expansions (#2095)

- especially in blockMeshDict it is useful to negate an value directly.
  Eg,
  ```
     xmax  100;
     xmin  -$xmax;
  ```
  However, this fails since the dictionary expansion is a two-step
  process of tokenization followed by expansion. After the expansion
  the given input would now be the following:
  ```
     xmax  100;
     xmin  - 100;
  ```
  and retrieving a scalar value for 'xmin' fails.

  Counteract this by being more generous on tokenized input when
  attempting to retrieve a label or scalar value.
  If a '-' is found where a number is expected, use it to negate the
  subsequent value.

  The previous solution was to invoke an 'eval':
  ```
     xmax  100;
     xmin  #eval{-$xmax};
  ```
  which adds additional clutter.
2021-05-18 15:30:00 +02:00

37 lines
1.2 KiB
C++

/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2012 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object dictionary;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#inputMode merge
".*" parentValue1;
"[n-z].*" parentValue2;
"f.*" parentValue3;
keyX parentValue4;
keyY parentValue5;
"(.*)Dict"
{
foo subdictValue0;
//bar $f.*; // should this really match 'foo'?
// result is dependent on insert order!
"a.*c" subdictValue3;
"ab.*" subdictValue2;
"a.*" subdictValue1;
abcd \1;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //