VocalEasel/mma/util/mma-renum.py
Matthias Neeracher 35300f3344 merging mma-1.1
2007-04-29 06:47:40 +00:00

73 lines
1.4 KiB
Python
Executable File

#!/usr/bin/env python
# Renumber a mma song file. Just take any lines
# which start with a number and do those sequenially.
import sys, os
def usage():
print "Mma-renum, (c) Bob van der Poel"
print "Re-numbers a mma song file and"
print " cleans up chord tabbing."
print "Overwrites existing file!"
print
sys.exit(1)
if len(sys.argv[1:]) != 1:
print "mma-rnum: requires 1 filename argument."
usage()
filename = sys.argv[1]
tempfile = filename + ".temp"
if filename[0] == '-':
usage()
if not os.path.exists(filename):
error("Can't access the file '%s'" % filename)
try:
inpath = open(filename, 'r')
except:
usage()
try:
outpath = open( tempfile, 'w')
except:
error("Can't open scratchfile '%s', error '%s'" % (tempfile, sys.exc_info()[0]) )
linenum = 1
for l in inpath:
l=l.rstrip()
s = l.split()
if s:
try: # only modify lines starting with a number
x=int(s[0])
l='%-5s' % linenum
linenum += 1
for a in s[1:]:
l += "%-4s " % a
except:
pass
outpath.write(l + "\n")
inpath.close()
outpath.close()
try:
os.remove(filename)
except:
error("Cannot delete '%s', new file '%s' remains", (filename, tempfile) )
try:
os.rename(tempfile, filename)
except:
error("Cannot rename '%s' to '%s'." (tempfile, filename) )