[gdal-dev] /vsigzip/ write support in trunk

[Frank Warmerdam]

Folks,

I have extended Even's /vsigzip/ driver in trunk to support writing as
well as reading.  This means it is possible to write a file in compressed
format by using a filename like /vsigzip/out.asc.gz.  Note that the /vsigzip/
write driver does not support seeking around in the output stream so only
output drivers that use VSI*L *and* that do not do seeks will work.  So it
can't be used for GeoTIFF, but can be used for formats like AAIGRID.

I implemented this primarily so that the new R driver could directly create
a compressed object file.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent