Humdrum Extras

ridx manpage


    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.



    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:
    Piped data works in a somewhat similar manner:
           cat file.krn | program
    is equivalent to a web file using ths form:
           echo | 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:
    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 28 Jun 2012.
    • Windows compiled on 29 Jun 2012.
    • Mac OS X/i386 compiled on 13 Nov 2013.

    The source code for the program was last modified on 1 Apr 2013. Click here to go to the full source-code download page.