ridx manpage

COMMAND

ridx -- Remove different categories of Humdrum line types.

ridx -[dDgGiIlLT] [input] [> output]

-d		remove all null data records.
-D		remove all data records.
-g		remove all null global comments.
-G		remove all global comments (and bibliographic records).
-i		remove all null interpretations.
-I		remove all interpretations.
-l		remove all null local comments
-L		remove all local comments.
-T		remove all tandem interpretations.
-u		not used.
-U		not used.
-M		remove all measure lines.
-c		remove local comments and global comments (keeping bibliographic comments).
-C		remove all types of comments.

Example usages of the ridx program are available on the ridx examples page.

Input arguments or piped data which are expected to be Humdrum files can also be web addresses. For example, if a program can process files like this:

       program file.krn

It can also read the data over the web:

       program http://www.some-computer.com/some-directory/file.krn

Piped data works in a somewhat similar manner:

       cat file.krn | program

is equivalent to a web file using ths form:

       echo http://www.some-computer.com/some-directory/file.krn | program

Besides the http:// protocol, there is another special resource indicator prefix called humdrum:// which downloads data from the kernscores website. For example, using the URI humdrum://brandenburg/bwv1046a.krn:

      program humdrum://brandenburg/bwv1046a.krn

will download the URL:

http://kern.humdrum.org/cgi-bin/ksdata?file=bwv1046a.krn&l=/brandenburg&format=kern
Which is found in the Musedata Bach Brandenburg Concerto collection.

This online-access of Humdrum data can also interface with the classical Humdrum Toolkit commands by using humcat to download the data from the kernscores website. For example, try the command pipeline:

      humcat humdrum://brandenburg/bwv1046a.krn | census -k

The standard Humdrum Toolkit transposition program, rid.

The compiled ridx program can be downloaded for the following platforms:
• Linux (i386 processors) (dynamically linked) compiled on 6 Sep 2010.
• Mac OS X/i386 compiled on 18 Oct 2010.

The source code for the program was last modified on 23 Nov 2009. Click here to go to the full source-code download page.