r.blend: Quote map names in r.mapcalc expressions.

[marisn]

Avoids failure if map / mapset name is also a valid mathematical expression.

[marisn]

Same issue also affects r.grow. Fixed with 81761a8

[neteler]

To better try it out, do you have a (simple) example?

[marisn]

To better try it out, do you have a (simple) example?

Hmmm. This could be a good addition to the test suite, as there could be errors in other modules as well. Still I'm not that familiar with the test suite to understand how to force running all tests in a specific mapset.

1. In NC basic location create a new mapset '1234-56-78' (a typical mapset naming pattern when I have a single mapset per map sheet) and start GRASS session in it;
2. g.copy raster=elevation@PERMANENT,elevation
3. r.blend first=elevation@1234-56-78 second=elevation@1234-56-78 output=blended
4. Observe output: syntax error, unexpected INTEGER, expecting VARNAME or NAME
5. r.grow input=elevation@1234-56-78 output=grown
6. Observe output: syntax error, unexpected INTEGER, expecting VARNAME or NAME

[neteler]

I have written a testsuite script in PR #347, pls check

[neteler]

An objections to merge and backport?

[marisn]

An objections to merge and backport?

No one seems to object. I can rebase, if needed.

[landam]

@neteler Are you planning to merge it?

[neteler]

@neteler Are you planning to merge it?

Done and backported