Update README, remove obsolete script.

Demo/scripts/README

@@ -19,4 +19,4 @@ primes.py		Print prime numbers
 queens.py               Dijkstra's solution to Wirth's "N Queens problem"
 script.py               Equivalent to BSD script(1) -- by Steen Lumholt
 unbirthday.py           Print unbirthday count
-update.py		Update a bunch of files according to a script.
+update.py               Update a bunch of files according to a script

Demo/scripts/toaiff.py

-"""Convert "arbitrary" sound files to AIFF (Apple and SGI's audio format).
-
-Input may be compressed.
-Uncompressed file type may be AIFF, WAV, VOC, 8SVX, NeXT/Sun, and others.
-An exception is raised if the file is not of a recognized type.
-Returned filename is either the input filename or a temporary filename;
-in the latter case the caller must ensure that it is removed.
-Other temporary files used are removed by the function.
-"""
-
-import os
-import tempfile
-import pipes
-import sndhdr
-
-__all__ = ["error", "toaiff"]
-
-table = {}
-
-t = pipes.Template()
-t.append('sox -t au - -t aiff -r 8000 -', '--')
-table['au'] = t
-
-# XXX The following is actually sub-optimal.
-# XXX The HCOM sampling rate can be 22k, 22k/2, 22k/3 or 22k/4.
-# XXX We must force the output sampling rate else the SGI won't play
-# XXX files sampled at 5.5k or 7.333k; however this means that files
-# XXX sampled at 11k are unnecessarily expanded.
-# XXX Similar comments apply to some other file types.
-t = pipes.Template()
-t.append('sox -t hcom - -t aiff -r 22050 -', '--')
-table['hcom'] = t
-
-t = pipes.Template()
-t.append('sox -t voc - -t aiff -r 11025 -', '--')
-table['voc'] = t
-
-t = pipes.Template()
-t.append('sox -t wav - -t aiff -', '--')
-table['wav'] = t
-
-t = pipes.Template()
-t.append('sox -t 8svx - -t aiff -r 16000 -', '--')
-table['8svx'] = t
-
-t = pipes.Template()
-t.append('sox -t sndt - -t aiff -r 16000 -', '--')
-table['sndt'] = t
-
-t = pipes.Template()
-t.append('sox -t sndr - -t aiff -r 16000 -', '--')
-table['sndr'] = t
-
-uncompress = pipes.Template()
-uncompress.append('uncompress', '--')
-
-
-class error(Exception):
-    pass
-
-def toaiff(filename):
-    temps = []
-    ret = None
-    try:
-        ret = _toaiff(filename, temps)
-    finally:
-        for temp in temps[:]:
-            if temp != ret:
-                try:
-                    os.unlink(temp)
-                except os.error:
-                    pass
-                temps.remove(temp)
-    return ret
-
-def _toaiff(filename, temps):
-    if filename[-2:] == '.Z':
-        (fd, fname) = tempfile.mkstemp()
-        os.close(fd)
-        temps.append(fname)
-        sts = uncompress.copy(filename, fname)
-        if sts:
-            raise error(filename + ': uncompress failed')
-    else:
-        fname = filename
-    try:
-        ftype = sndhdr.whathdr(fname)
-        if ftype:
-            ftype = ftype[0] # All we're interested in
-    except IOError as msg:
-        if type(msg) == type(()) and len(msg) == 2 and \
-                type(msg.args[0]) == type(0) and type(msg.args[1]) == type(''):
-            msg = msg.args[1]
-        if type(msg) != type(''):
-            msg = repr(msg)
-        raise error(filename + ': ' + msg)
-    if ftype == 'aiff':
-        return fname
-    if ftype is None or not ftype in table:
-        raise error('%s: unsupported audio file type %r' % (filename, ftype))
-    (fd, temp) = tempfile.mkstemp()
-    os.close(fd)
-    temps.append(temp)
-    sts = table[ftype].copy(fname, temp)
-    if sts:
-        raise error(filename + ': conversion to aiff failed')
-    return temp