mirror of
https://github.com/microtherion/VocalEasel.git
synced 2024-12-22 03:04:00 +00:00
131 lines
2.5 KiB
Python
Executable File
131 lines
2.5 KiB
Python
Executable File
#!/usr/bin/env python
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""" Simple program to convert a PG music PAT file to MMA. """
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import os, sys, time
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def usage():
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print "pg2mma, (c) Bob van der Poel"
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print "Converts a PG-music PAT file to MMA."
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print " usage: pg2mma <infile> <outfile>"
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print
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sys.exit(1)
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def error(m):
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print m
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sys.exit(1)
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if len(sys.argv[1:]) != 2:
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print "pg2mma: requires 2 filename arguments."
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usage()
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ifile = sys.argv[1]
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ofile = sys.argv[2]
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if ifile[0] == '-' or ofile[0] == '-':
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usage()
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try:
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infile = open(ifile, 'r')
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except:
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error( "Cannot open input file %s." % ifile)
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if os.path.exists(ofile):
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error("Outfile file %s already exists." % ofile)
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try:
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outfile = open(ofile, 'w')
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except:
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error( "Cannot open output file %s." % ofile )
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outfile.write("// Converted by pg2mma from %s, %s.\n\n" % (ifile, time.asctime() ))
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outfile.write("Begin Patch Set\n\n")
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## Read and convert.
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lnum = 0
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offadj = 0
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while 1:
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l=infile.readline()
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lnum += 1
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if l == '':
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outfile.write("\nEnd // end of Patch Set\n")
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infile.close()
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outfile.close()
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sys.exit(0)
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l=l.strip()
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if l=='':
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continue
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if l == "ONEBASED":
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offadj = 1
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continue
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if l[0] == ';':
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outfile.write(" // %s\n" % l[1:])
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continue
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if l[0] == '[':
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l = l[1:].strip()
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l = l.rstrip(']')
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if l:
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outfile.write("\n // %s\n\n" % l)
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continue
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if not l or not l[0].isdigit():
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continue
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try:
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v,n = l.split('=',1)
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except:
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error( "Expecting '=' in pat line, line %s" % lnum)
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# Convert the patch name to non-space, CamelCase, no '.'s
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n = n.title()
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n = n.replace('.', '')
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n = n.replace(' ', '')
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# verify the voice value
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# apply offset adjustment
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v=v.rstrip('.') # some files have extra dots!!
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t = v.split('.')
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if len(t) > 3:
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t=t[:3]
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if offadj:
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try:
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a = int(t[0])
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except:
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error( "Expecting integer value, '%s' line %s." % (v, lnum))
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t[0] = str( a - 1 )
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for a in t:
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try:
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a = int(a)
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except:
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error( "Expecting integer value in value set, '%s' line %s." % (v, lnum))
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if a<0 or a>127:
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error( "Each part of the value set must be 0..127, '%s' line %s." % (v,lnum))
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if len(t)==3 and t[2]=='0':
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t=t[:2]
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if len(t)==2 and t[1]=='0':
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t=t[0]
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outfile.write(" %s=%s\n" % ('.'.join(t) , n))
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