diff options
Diffstat (limited to 'devel/p5-Digest-TransformPath/pkg-descr')
| -rw-r--r-- | devel/p5-Digest-TransformPath/pkg-descr | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/devel/p5-Digest-TransformPath/pkg-descr b/devel/p5-Digest-TransformPath/pkg-descr index 77975d1e2721..16c9c00040b5 100644 --- a/devel/p5-Digest-TransformPath/pkg-descr +++ b/devel/p5-Digest-TransformPath/pkg-descr @@ -1,3 +1,18 @@ -Implements the TransformPath concept +The Digest::TransformPath module implements the TransformPath concept. +A TransformPath is a complex higher-order key that is designed for use +with chains of functions that sequentially transform a piece of data. -WWW: http://search.cpan.org/dist/Digest-TransformPath/ +The concept starts with a sizable chunk of data, for example an image, +for which we can determine a unique identifier, and for which we can +cheaply determine if and when the source material has changed. A series +of resource-intensive transforms might be applied to this original data +to produce another piece of data. In the image example, we might auto-level, +crop, scale, rotate, colour-balance and then thumbnail the image. This +transformed data would be put into a cache. If at some future point +we wish to obtain the same image, but would preferably like to use the +cached version, we would have to take the original image, reapply the +transforms, and then compare to the result the first time around. + +Further documentation is found within the module. + +WWW: http://search.cpan.org/dist/Digest-TransformPath/ |