loadFromUrl: Load Files from a Web Site
In PAnnBuilder: Protein annotation data package builder

Description Usage Arguments Details Value References Examples

Given an url, these functions download a file from a given web site and unzip the file if it is compressed.

loadFromUrl(srcUrl, destDir = "", verbose=FALSE)
validateUrl(srcUrl)
unzipFile(fileName, where = file.path(path.package("PAnnBuilder"),
"data"), isgz = FALSE)

`srcUrl`	`srcUrl` a character string for the url of the file to be downloaded
`destDir`	`destDir` a character string for a loacal directory where the file to be downloaded will be saved
`where`	`where` same as destDir
`isgz`	`isga` a boolean indicating whether the downloaded file is a gz file
`fileName`	`fileName` a character string for the name of a file
`verbose`	A booline indicating whether to print extra information.

These functions are used by various objects in package pubRepo to download data files from a web site. If the file is compressed, decompressing will be applied and the path for the decompressed file will be returned.

validateUrl will terminate the process if an invalid url is passed.

unzipFile decompress the file passed as fileName.

loadFromUrl returns a character string for the name of the file saved locally.

Zhang, J., Carey, V., Gentleman, R. (2003) An extensible application for assembling annotation for genomic data.Bioinformatics 19(1), 155-156.

## Not run: 
# Get a dummy data file from Bioconductor web site
data <-
loadFromUrl("http://www.bioconductor.org/datafiles/wwwsources/Tll_tmpl.gz",
destDir = "")
unlink(data)

## End(Not run)