NoteWorthy Composer Forum

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#pyNWC-a .nwctxt syntax parser (I/O) in python
#Created by forum user kahman.
#Use it however you please.  Feel free to modify it, but please return all modifications to the forum.
#Known bugs:
#   *Cannot import lyrics that have line-breaks in them.

def parsefile(_file):
    "parse one file"
    _file=_file.split('\n') #split the file by line
    for x in range(len(_file)):    #for each remaining line,
        _file[x]=parseline(_file[x])   #parse it seperately
    while 1:    #until error occurs
        try:
            _file.remove(None)  #remove a None from the list
        except ValueError:  #if there is no None,
            break   #break
    return _file

def parseline(line):
    "parse one line"
    output=[]
    if line=='':    #if line is blank,
        return None     #destroy it
    elif line[0]=='#':  #or if it's a comment,
        return None     #destroy it
    elif line[0]=='!':  #or if it's start/end marker,
        return None     #destroy it
    line=line.split('|')    #split the line by |
    output.append(line[1])   #set what object it is
    output.append({})
    for x in line[2:]:  #then for each property/value
        y=(x.split(':')) #split it into property and value
        output[1][y[0]]=y[1]    #and add these to the dictionary
    return output

def writefile(tree):
    "write a file"
    output='!NoteWorthyComposer(2.0)\n'   #start empty output
    for x in tree:  #for each line
        output=output+writeline(x)+'\n' #process it seperately
    output=output+'!NoteWorthyComposer-End'
    return output

def writeline(line):
    "write a line"
    output='|'  #start empty output
    output=output+line[0]
    for x in line[1].keys():
        output=output+'|%s:%s' %(x, line[1][x])
    return output

#pyNWC-a .nwctxt syntax parser in python
#Created by forum user kahman.
#Use it however you please.  Feel free to modify it, but please return all modifications to the forum.
#Known bugs:
#   *Cannot import lyrics that have line-breaks in them.

def parsefile(_file):
    "parse one file"""
    _file=_file.split('\n') #split the file by line
    for x in range(len(_file)):    #for each remaining line,
        _file[x]=parseline(_file[x])   #parse it seperately
    while 1:    #until error occurs
        try:
            _file.remove(None)  #remove a None from the list
        except ValueError:  #if there is no None,
            break   #break
    return _file

def parseline(line):
    output=[]
    if line=='':    #if line is blank,
        return None     #destroy it
    elif line[0]=='#':  #or if it's a comment,
        return None     #destroy it
    elif line[0]=='!':  #or if it's start/end marker,
        return None     #destroy it
    line=line.split('|')    #split the line by |
    output.append(line[1])   #set what object it is
    output.append({})
    for x in line[2:]:  #then for each property/value
        y=(x.split(':')) #split it into property and value
        output[1][y[0]]=y[1]    #and add these to the dictionary
    return output

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