Am I misunderstanding rawConnections here or are rawConnections not working right yet? It looks like I can use seek() to position the read pointer but readBin does not position the read pointer past what has just been read.
> myRawTen <- as.raw(101:110) > str(myRawTen) raw [1:10] 65 66 67 68 ... > rawToChar(myRawTen) [1] "efghijklmn" > myRawTenCon <- rawConnection(myRawTen) > readBin(myRawTenCon, what="integer", size=2, n=1) [1] 26213 > c(26213%%256, 26213%/%256) [1] 101 102 > # next 2-byte integer should be 104*256 + 103 = 26727 > readBin(myRawTenCon, what="integer", size=2, n=1) [1] 26213 > # if I seek() explicitly it works > seek(myRawTenCon, 2) [1] 6 > readBin(myRawTenCon, what="integer", size=2, n=1) [1] 26727 > seek(myRawTenCon, 6) # look at last 4 bytes: 107:110 [1] 0 > # multiple reads in one call to readBin do not advance > # the position pointer: > readBin(myRawTenCon, what="integer", size=1, n=4) [1] 107 107 107 107 > sessionInfo() R version 2.13.0 (2011-04-13) Platform: i386-pc-mingw32/i386 (32-bit) locale: [1] LC_COLLATE=English_United States.1252 LC_CTYPE=English_United States.1252 LC_MONETARY=English_United States.1252 [4] LC_NUMERIC=C LC_TIME=English_United States.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] lattice_0.19-23 MASS_7.3-12 loaded via a namespace (and not attached): [1] compiler_2.13.0 grid_2.13.0 tools_2.13.0 Bill Dunlap Spotfire, TIBCO Software wdunlap tibco.com ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel