Hello. I am using streams in quite a few programs already. One of them, svnwiki, uses them for a subversion-based wiki program, which you can see running at: http://ingenieria.ean.edu.co/~azul/svnwiki.cgi/ean/fin/default Strings are represented as streams of character everywhere in this program (and many others I'm writing). In order to do this, I wrote a set of higher-level functions for manipulating streams. Some of them are specific to streams of characters but most are general. I have written this library to work in Chicken Scheme, the implementation I'm most familiar with. However, most of the functions should be easy to port to other implementations (actually most should work out-of-the-box). The documentation is available at: http://www.call-with-current-continuation.org/eggs/stream-ext.html The source code is in the public domain. You can download it at: http://www.call-with-current-continuation.org/eggs/stream-ext.scm I understand that srfi-41 was reserved for a library of higher level functions for manipulating streams. However, Googling for srfi-41 turns out no useful results. Are there other existing libraries for manipulating streams? If there is interest, I could create a draft to serve as srfi-41 based on the documentation of my library (probably removing a few non-portable functions such as stream-grep). I don't want to have to change my programs if the standard interface adopted for higher-level manipulation of streams is incompatible with my library. If I have to do this, the sooner the better. The interface for the functions in my library is designed to be as coherent as possible with that of the functions in srfi-1 and r5rs, replacing ``list-'' with ``stream-'' in their names (or, sometimes, just prefixing them with ``stream-''). The order of the arguments is preserved most (all?) of the times. I, however, did add a few functions, such as stream-butlast-n or stream-last-n, that have no direct list-based equivalent in srfi-1 (nor r5rs). Thanks! Alejo. http://bachue.com/alejo ---=( Comunidad de Usuarios de Software Libre en Colombia )=--- ---=( http://bachue.com/colibri )=--=( colibri@xxxxxxxxxx )=---
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