[GRASS-dev] On post-processing a raster map's mapcalc related history string

[Nikos Alexandris]

A mapcalc expression, involving somewhat long(er) temporary map
names, stored in the output raster map's history, looks like:
```
Comments:
 if((tmp.32493.16.tmp.32493.11.tmp.32493.6.recreation_potential == 1
 && tmp.32493.17.recreation_opportunity == 1), 1,
 if((tmp.32493.16.tmp.32493.11.tmp.32493.6.recreation_potential == 1
 && tmp.32493.17.recreation_opportunity == 2), 2,
 if((tmp.32493.16.tmp.32493.11.tmp.32493.6.recreation_potential == 1
 && tmp.32493.17.recreation_opportunity == 3), 3,
 if((tmp.32493.16.tmp.32493.11.tmp.32493.6.recreation_potential == 2
 && tmp.32493.17.recreation_opportunity == 1), 4,
 if((tmp.32493.16.tmp.32493.11.tmp.32493.6.recreation_potential == 2
 && tmp.32493.17.recreation_opportunity == 2), 5,
 if((tmp.32493.16.tmp.32493.11.tmp.32493.6.recreation_potential == 2
 && tmp.32493.17.recreation_opportunity == 3), 6,
 if((tmp.32493.16.tmp.32493.11.tmp.32493.6.recreation_potential == 3
 && tmp.32493.17.recreation_opportunity == 1), 7,
 if((tmp.32493.16.tmp.32493.11.tmp.32493.6.recreation_potential == 3
 && tmp.32493.17.recreation_opportunity == 2), 8,
 if((tmp.32493.16.tmp.32493.11.tmp.32493.6.recreation_potential == 3
 && tmp.32493.17.recreation_opportunity == 3), 9)))))))))
```

Any smart ideas on how to post-process this to get rid of all 
'tmp.32493.16.tmp.32493.11.tmp.32493.6.' parts?

Standard string manipulation utilities?

Or, rather, build an "fake" expression with the original map names just
for the sake of having a cleaner history?

Thank you, Nikos
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