[GRASS-stats] Some refactoring and fixing

[Rainer M Krug]

Hi

I just committed a few of commits which refactor the code of readRAST,
writeRAST, readVECT & writeVECT by creating internal fi=unctions for
reading / writing for plugin / non-plugin and moving the default values
(get...Options()) into the function definitions.

Also, I added tryCatch blocks to close open connections and to reset
echoCmdOption. I ran the examples before each commit and I did not see
any errors or changed behavior.

Apologies for the typos in the commit messages - I only saw them later.

To stick with consistency, I would recommend to rename the package to
spgrass7 and to look into the possibility to create a meta-package which
uses spgrass6 or spgrass7 (I don't know about the GRASS 5 interface -
haven't used it) depending on the GRASS GIS version set / loaded.

Cheers,

Rainer

-- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa

Tel :       +33 - (0)9 53 10 27 44
Cell:       +33 - (0)6 85 62 59 98
Fax :       +33 - (0)9 58 10 27 44

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email:      Rainer at krugs.de

Skype:      RMkrug

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