#!/usr/bin/env python # coding=latin-1 ''' Copyright (C) 2012-2018: W.G. Vree Contributions: M. Tarenskeen, N. Liberg, Paul Villiger, Janus Meuris, Larry Myerscough, Dick Jackson, Jan Wybren de Jong, Mark Zealey. This program is free software; you can redistribute it and/or modify it under the terms of the Lesser GNU General Public License as published by the Free Software Foundation; This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Lesser GNU General Public License for more details. . ''' try: import xml.etree.cElementTree as E except: import xml.etree.ElementTree as E import os import sys import types import re import math VERSION = 145 python3 = sys.version_info.major > 2 if python3: tupletype = tuple listtype = list max_int = sys.maxsize else: tupletype = types.TupleType listtype = types.ListType max_int = sys.maxint note_ornamentation_map = { # for notations/, modified from EasyABC 'ornaments/trill-mark': 'T', 'ornaments/mordent': 'M', 'ornaments/inverted-mordent': 'P', 'ornaments/turn': '!turn!', 'ornaments/inverted-turn': '!invertedturn!', 'technical/up-bow': 'u', 'technical/down-bow': 'v', 'technical/harmonic': '!open!', 'technical/open-string': '!open!', 'technical/stopped': '!plus!', 'technical/snap-pizzicato': '!snap!', 'technical/thumb-position': '!thumb!', 'articulations/accent': '!>!', 'articulations/strong-accent': '!^!', 'articulations/staccato': '.', 'articulations/staccatissimo': '!wedge!', 'articulations/scoop': '!slide!', 'fermata': '!fermata!', 'arpeggiate': '!arpeggio!', 'articulations/tenuto': '!tenuto!', # not sure whether this is the right translation 'articulations/staccatissimo': '!wedge!', # not sure whether this is the right translation 'articulations/spiccato': '!wedge!', # this may need to be tested to make sure it appears on the right side of the note 'articulations/breath-mark': '!breath!', 'articulations/detached-legato': '!tenuto!.', } dynamics_map = { # for direction/direction-type/dynamics/ 'p': '!p!', 'pp': '!pp!', 'ppp': '!ppp!', 'pppp': '!pppp!', 'f': '!f!', 'ff': '!ff!', 'fff': '!fff!', 'ffff': '!ffff!', 'mp': '!mp!', 'mf': '!mf!', 'sfz': '!sfz!', } percSvg = '''%%beginsvg         %%endsvg''' tabSvg = '''%%beginsvg ''' kopSvg = '%s\n' kopSvg2 = '%s\n' info_list = [] # diagnostic messages def info(s, warn=1): x = ('-- ' if warn else '') + s + '\n' info_list.append(x) if __name__ == '__main__': # only when run from the command line sys.stderr.write(x) # ------------------- # data abstractions # ------------------- class Measure: def __init__(s, p): s.reset() s.ixp = p # part number s.ixm = 0 # measure number s.mdur = 0 # measure duration (nominal metre value in divisions) s.divs = 0 # number of divisions per 1/4 s.mtr = 4, 4 # meter def reset(s): # reset each measure s.attr = '' # measure signatures, tempo s.lline = '' # left barline, but only holds ':' at start of repeat, otherwise empty s.rline = '|' # right barline s.lnum = '' # (left) volta number class Note: def __init__(s, dur=0, n=None): s.tijd = 0 # the time in XML division units s.dur = dur # duration of a note in XML divisions s.fact = None # time modification for tuplet notes (num, div) s.tup = [''] # start(s) and/or stop(s) of tuplet s.tupabc = '' # abc tuplet string to issue before note s.beam = 0 # 1 = beamed s.grace = 0 # 1 = grace note s.before = [] # abc string that goes before the note/chord s.after = '' # the same after the note/chord s.ns = n and [n] or [] # notes in the chord s.lyrs = {} # {number -> syllabe} s.tab = None # (string number, fret number) s.ntdec = '' # !string!, !courtesy! class Elem: def __init__(s, string): s.tijd = 0 # the time in XML division units s.str = string # any abc string that is not a note class Counter: def inc(s, key, voice): s.counters[key][voice] = s.counters[key].get( voice, 0) + 1 def clear(s, vnums): # reset all counters tups = list(zip(vnums.keys(), len(vnums) * [0])) s.counters = {'note': dict(tups), 'nopr': dict( tups), 'nopt': dict(tups)} def getv(s, key, voice): return s.counters[key][voice] def prcnt(s, ip): # print summary of all non zero counters for iv in s.counters['note']: if s.getv('nopr', iv) != 0: info('part %d, voice %d has %d skipped non printable notes' % (ip, iv, s.getv('nopr', iv))) if s.getv('nopt', iv) != 0: info('part %d, voice %d has %d notes without pitch' % (ip, iv, s.getv('nopt', iv))) if s.getv('note', iv) == 0: # no real notes counted in this voice info('part %d, skipped empty voice %d' % (ip, iv)) class Music: def __init__(s, options): s.tijd = 0 # the current time s.maxtime = 0 # maximum time in a measure s.gMaten = [] # [voices,.. for all measures in a part] # [{num: (abc_lyric_string, melis)},.. for all measures in a part] s.gLyrics = [] # all used voice id's in a part (xml voice id's == numbers) s.vnums = {} s.cnt = Counter() # global counter object s.vceCnt = 1 # the global voice count over all parts s.lastnote = None # the last real note record inserted in s.voices s.bpl = options.b # the max number of bars per line when writing abc s.cpl = options.n # the number of chars per line when writing abc s.repbra = 0 # true if volta is used somewhere s.nvlt = options.v # no volta on higher voice numbers s.jscript = options.j # compatibility with javascript version def initVoices(s, newPart=0): s.vtimes, s.voices, s.lyrics = {}, {}, {} for v in s.vnums: # {voice: the end time of the last item in each voice} s.vtimes[v] = 0 s.voices[v] = [] # {voice: [Note|Elem, ..]} s.lyrics[v] = [] # {voice: [{num: syl}, ..]} if newPart: s.cnt.clear(s.vnums) # clear counters once per part def incTime(s, dt): s.tijd += dt if s.tijd < 0: s.tijd = 0 # erroneous element if s.tijd > s.maxtime: s.maxtime = s.tijd def appendElemCv(s, voices, elem): for v in voices: s.appendElem(v, elem) # insert element in all voices def insertElem(s, v, elem): # insert at the start of voice v in the current measure obj = Elem(elem) obj.tijd = 0 # because voice is sorted later s.voices[v].insert(0, obj) def appendObj(s, v, obj, dur): obj.tijd = s.tijd s.voices[v].append(obj) s.incTime(dur) if s.tijd > s.vtimes[v]: s.vtimes[v] = s.tijd # don't update for inserted earlier items def appendElem(s, v, elem, tel=0): s.appendObj(v, Elem(elem), 0) if tel: # count number of certain elements in each voice (in addition to notes) s.cnt.inc('note', v) def appendElemT(s, v, elem, tijd): # insert element at specified time obj = Elem(elem) obj.tijd = tijd s.voices[v].append(obj) def appendNote(s, v, note, noot): note.ns.append(note.ntdec + noot) s.appendObj(v, note, int(note.dur)) # remember last note/rest for later modifications (chord, grace) s.lastnote = note if noot != 'z' and noot != 'x': # real notes and grace notes s.cnt.inc('note', v) # count number of real notes in each voice if not note.grace: # for every real note s.lyrics[v].append(note.lyrs) # even when it has no lyrics def getLastRec(s, voice): if s.gMaten: # the last record in the last measure return s.gMaten[-1][voice][-1] return None # no previous records in the first measure def getLastMelis(s, voice, num): # get melisma of last measure if s.gLyrics: # the previous lyrics dict in this voice lyrdict = s.gLyrics[-1][voice] if num in lyrdict: # lyrdict = num -> (lyric string, melisma) return lyrdict[num][1] return 0 # no previous lyrics in voice or line number def addChord(s, note, noot): # careful: we assume that chord notes follow immediately for d in note.before: # put all decorations before chord if d not in s.lastnote.before: s.lastnote.before += [d] s.lastnote.ns.append(note.ntdec + noot) def addBar(s, lbrk, m): # linebreak, measure data if m.mdur and s.maxtime > m.mdur: info('measure %d in part %d longer than metre' % (m.ixm+1, m.ixp+1)) s.tijd = s.maxtime # the time of the bar lines inserted here for v in s.vnums: if m.lline or m.lnum: # if left barline or left volta number p = s.getLastRec(v) # get the previous barline record if p: # in measure 1 no previous measure is available x = p.str # p.str is the ABC barline string if m.lline: # append begin of repeat, m.lline == ':' x = (x + m.lline).replace(':|:', '::').replace('||', '|') if s.nvlt == 3: # add volta number only to lowest voice in part 0 if m.ixp + v == min(s.vnums): x += m.lnum elif m.lnum: # new behaviour with I:repbra 0 # add volta number(s) or text to all voices x += m.lnum s.repbra = 1 # signal occurrence of a volta p.str = x # modify previous right barline elif m.lline: # begin of new part and left repeat bar is required s.insertElem(v, '|:') if lbrk: p = s.getLastRec(v) # get the previous barline record if p: p.str += lbrk # insert linebreak char after the barlines+volta if m.attr: # insert signatures at front of buffer s.insertElem(v, '%s' % m.attr) # insert current barline record at time maxtime s.appendElem(v, ' %s' % m.rline) # make all times consistent s.voices[v] = sortMeasure(s.voices[v], m) lyrs = s.lyrics[v] # [{number: sylabe}, .. for all notes] # {number: (abc_lyric_string, melis)} for this voice lyrdict = {} # the lyrics numbers in this measure nums = [num for d in lyrs for num in d.keys()] # the highest lyrics number in this measure maxNums = max(nums + [0]) for i in range(maxNums, 0, -1): # collect the syllabi with number i xs = [syldict.get(i, '') for syldict in lyrs] melis = s.getLastMelis(v, i) # get melisma from last measure lyrdict[i] = abcLyr(xs, melis) # {number: (abc_lyric_string, melis)} for this measure s.lyrics[v] = lyrdict mkBroken(s.voices[v]) s.gMaten.append(s.voices) s.gLyrics.append(s.lyrics) s.tijd = s.maxtime = 0 s.initVoices() def outVoices(s, divs, ip, isSib): # output all voices of part ip # xml voice number -> abc voice number (one part) vvmap = {} vnum_keys = list(s.vnums.keys()) if s.jscript or isSib: vnum_keys.sort() lvc = min(vnum_keys or [1]) # lowest xml voice number of this part for iv in vnum_keys: if s.cnt.getv('note', iv) == 0: # no real notes counted in this voice continue # skip empty voices if abcOut.denL: unitL = abcOut.denL # take the unit length from the -d option else: # compute the best unit length for this voice unitL = compUnitLength(iv, s.gMaten, divs) abcOut.cmpL.append(unitL) # remember for header output vn, vl = [], {} # for voice iv: collect all notes to vn and all lyric lines to vl for im in range(len(s.gMaten)): measure = s.gMaten[im][iv] vn.append(outVoice(measure, divs[im], im, ip, unitL)) checkMelismas(s.gLyrics, s.gMaten, im, iv) for n, (lyrstr, melis) in s.gLyrics[im][iv].items(): if n in vl: while len(vl[n]) < im: vl[n].append('') # fill in skipped measures vl[n].append(lyrstr) else: vl[n] = im * [''] + [lyrstr] # must skip im measures for n, lyrs in vl.items(): # fill up possibly empty lyric measures at the end mis = len(vn) - len(lyrs) lyrs += mis * [''] abcOut.add('V:%d' % s.vceCnt) if s.repbra: if s.nvlt == 1 and s.vceCnt > 1: abcOut.add('I:repbra 0') # only volta on first voice if s.nvlt == 2 and iv > lvc: # only volta on first voice of each part abcOut.add('I:repbra 0') if s.cpl > 0: # option -n (max chars per line) overrules -b (max bars per line) s.bpl = 0 elif s.bpl == 0: s.cpl = 100 # the default: 100 chars per line bn = 0 # count bars while vn: # while still measures available ib = 1 chunk = vn[0] while ib < len(vn): if s.cpl > 0 and len(chunk) + len(vn[ib]) >= s.cpl: break # line full (number of chars) if s.bpl > 0 and ib >= s.bpl: # line full (number of bars) break chunk += vn[ib] ib += 1 bn += ib abcOut.add(chunk + ' %%%d' % bn) # line with barnumer del vn[:ib] # chop ib bars # order the numbered lyric lines for output lyrlines = sorted(vl.items()) for n, lyrs in lyrlines: abcOut.add('w: ' + '|'.join(lyrs[:ib]) + '|') del lyrs[:ib] vvmap[iv] = s.vceCnt # xml voice number -> abc voice number s.vceCnt += 1 # count voices over all parts s.gMaten = [] # reset the follwing instance vars for each part s.gLyrics = [] # print summary of skipped items in this part s.cnt.prcnt(ip+1) return vvmap class ABCoutput: pagekeys = 'scale,pageheight,pagewidth,leftmargin,rightmargin,topmargin,botmargin'.split( ',') def __init__(s, fnmext, pad, X, options): s.fnmext = fnmext s.outlist = [] # list of ABC strings s.title = 'T:Title' s.key = 'none' s.clefs = {} # clefs for all abc-voices s.mtr = 'none' s.tempo = 0 # 0 -> no tempo field s.tempo_units = (1, 4) # note type of tempo direction s.pad = pad # the output path or none s.X = X + 1 # the abc tune number # denominator of the unit length (L:) from -d option s.denL = options.d # 0 -> no %%MIDI, 1 -> only program, 2 -> all %%MIDI s.volpan = int(options.m) s.cmpL = [] # computed optimal unit length for all voices s.jscript = options.j # compatibility with javascript version s.tstep = options.t # translate percmap to voicemap s.stemless = 0 # use U:s=!stemless! s.shiftStem = options.s # shift note heads 3 units left s.dojef = 0 # => s.tstep in mkHeader if pad: _, base_name = os.path.split(fnmext) s.outfile = open(os.path.join(pad, base_name), 'w') else: s.outfile = sys.stdout if s.jscript: s.X = 1 # always X:1 in javascript version s.pageFmt = {} for k in s.pagekeys: s.pageFmt[k] = None if len(options.p) == 7: for k, v in zip(s.pagekeys, options.p): try: s.pageFmt[k] = float(v) except: info('illegal float %s for %s', (k, v)) continue def add(s, str): s.outlist.append(str + '\n') # collect all ABC output # stfmap = [parts], part = [staves], stave = [voices] def mkHeader(s, stfmap, partlist, midimap, vmpdct, koppen): accVce, accStf, staffs = [], [], stfmap[:] # staffs is consumed for x in partlist: # collect partnames into accVce and staff groups into accStf try: prgroupelem(x, ('', ''), '', stfmap, accVce, accStf) except: info('lousy musicxml: error in part-list') staves = ' '.join(accStf) clfnms = {} for part, (partname, partabbrv) in zip(staffs, accVce): if not part: continue # skip empty part firstVoice = part[0][0] # the first voice number in this part nm = partname.replace('\n', '\\n').replace('.:', '.').strip(':') snm = partabbrv.replace('\n', '\\n').replace('.:', '.').strip(':') clfnms[firstVoice] = (nm and 'nm="%s"' % nm or '') + (snm and ' snm="%s"' % snm or '') hd = ['X:%d\n%s\n' % (s.X, s.title)] for i, k in enumerate(s.pagekeys): if s.jscript and k in ['pageheight', 'topmargin', 'botmargin']: continue if s.pageFmt[k] != None: hd.append('%%%%%s %.2f%s\n' % (k, s.pageFmt[k], i > 0 and 'cm' or '')) if staves and len(accStf) > 1: hd.append('%%score ' + staves + '\n') # default no tempo field tempo = s.tempo and 'Q:%d/%d=%s\n' % ( s.tempo_units[0], s.tempo_units[1], s.tempo) or '' d = {} # determine the most frequently occurring unit length over all voices for x in s.cmpL: d[x] = d.get(x, 0) + 1 if s.jscript: # when tie (1) sort on key (0) defLs = sorted(d.items(), key=lambda x: (-x[1], x[0])) else: defLs = sorted(d.items(), key=lambda x: -x[1]) # override default unit length with -d option defL = s.denL and s.denL or defLs[0][0] hd.append('L:1/%d\n%sM:%s\n' % (defL, tempo, s.mtr)) hd.append('I:linebreak $\nK:%s\n' % s.key) if s.stemless: hd.append('U:s=!stemless!\n') vxs = sorted(vmpdct.keys()) for vx in vxs: hd.extend(vmpdct[vx]) s.dojef = 0 # translate percmap to voicemap for vnum, clef in s.clefs.items(): ch, prg, vol, pan = midimap[vnum-1][:4] # map of abc percussion notes to midi notes dmap = midimap[vnum - 1][4:] if dmap and 'perc' not in clef: clef = (clef + ' map=perc').strip() hd.append('V:%d %s %s\n' % (vnum, clef, clfnms.get(vnum, ''))) if vnum in vmpdct: hd.append('%%%%voicemap tab%d\n' % vnum) hd.append( 'K:none\nM:none\n%%clef none\n%%staffscale 1.6\n%%flatbeams true\n%%stemdir down\n') if 'perc' in clef: hd.append('K:none\n') # no key for a perc voice if s.volpan > 1: # option -m 2 -> output all recognized midi commands when needed and present in xml if ch > 0 and ch != vnum: hd.append('%%%%MIDI channel %d\n' % ch) if prg > 0: hd.append('%%%%MIDI program %d\n' % (prg - 1)) if vol >= 0: # volume == 0 is possible ... hd.append('%%%%MIDI control 7 %.0f\n' % vol) if pan >= 0: hd.append('%%%%MIDI control 10 %.0f\n' % pan) elif s.volpan > 0: # default -> only output midi program command when present in xml if dmap and ch > 0: # also channel if percussion part hd.append('%%%%MIDI channel %d\n' % ch) if prg > 0: hd.append('%%%%MIDI program %d\n' % (prg - 1)) for abcNote, step, midiNote, notehead in dmap: if not notehead: notehead = 'normal' if abcMid(abcNote) != midiNote or abcNote != step: if s.volpan > 0: hd.append('%%%%MIDI drummap %s %s\n' % (abcNote, midiNote)) hd.append('I:percmap %s %s %s %s\n' % (abcNote, step, midiNote, notehead)) s.dojef = s.tstep # == options.t if defL != s.cmpL[vnum-1]: # only if computed unit length different from header hd.append('L:1/%d\n' % s.cmpL[vnum-1]) s.outlist = hd + s.outlist if koppen: # output SVG stuff needed for tablature # shift note heads 3 units left k1 = kopSvg.replace('-2', '-5') if s.shiftStem else kopSvg k2 = kopSvg2.replace('-2', '-5') if s.shiftStem else kopSvg2 tb = tabSvg.replace('-3', '-6') if s.shiftStem else tabSvg # javascript compatibility ks = sorted(koppen.keys()) ks = [k2 % (k, k) if len(k) == 2 else k1 % (k, k) for k in ks] # javascript compatibility tbs = map(lambda x: x.strip() + '\n', tb.splitlines()) s.outlist = tbs + ks + ['\n%%endsvg\n'] + s.outlist def getABC(s): str = ''.join(s.outlist) if s.dojef: str = perc2map(str) return str def writeall(s): # determine the required encoding of the entire ABC output str = s.getABC() if python3: s.outfile.write(str) else: s.outfile.write(str.encode('utf-8')) if s.pad: s.outfile.close() # close each file with -o option else: # add empty line between tunes on stdout s.outfile.write('\n') # info('%s written with %d voices' % (s.fnmext, len(s.clefs)), warn=0) # ---------------- # functions # ---------------- def abcLyr(xs, melis): # Convert list xs to abc lyrics. if not ''.join(xs): return '', 0 # there is no lyrics in this measure res = [] for x in xs: # xs has for every note a lyrics syllabe or an empty string if x == '': # note without lyrics if melis: x = '_' # set melisma else: x = '*' # skip note elif x.endswith('_') and not x.endswith('\_'): # start of new melisma x = x.replace('_', '') # remove and set melis boolean melis = 1 # so next skips will become melisma else: melis = 0 # melisma stops on first syllable res.append(x) return (' '.join(res), melis) def simplify(a, b): # divide a and b by their greatest common divisor x, y = a, b while b: a, b = b, a % b return x // a, y // a def abcdur(nx, divs, uL): # convert an musicXML duration d to abc units with L:1/uL if nx.dur == 0: return '' # when called for elements without duration num, den = simplify(uL * nx.dur, divs * 4) # L=1/8 -> uL = 8 units if nx.fact: # apply tuplet time modification numfac, denfac = nx.fact num, den = simplify(num * numfac, den * denfac) if den > 64: # limit the denominator to a maximum of 64 x = float(num) / den n = math.floor(x) # when just above an integer n if x - n < 0.1 * x: num, den = n, 1 # round to n num64 = 64. * num / den + 1.0e-15 # to get Python2 behaviour of round num, den = simplify(int(round(num64)), 64) if num == 1: if den == 1: dabc = '' elif den == 2: dabc = '/' else: dabc = '/%d' % den elif den == 1: dabc = '%d' % num else: dabc = '%d/%d' % (num, den) return dabc def abcMid(note): # abc note -> midi pitch r = re.search(r"([_^]*)([A-Ga-g])([',]*)", note) if not r: return -1 acc, n, oct = r.groups() nUp = n.upper() p = 60 + [0, 2, 4, 5, 7, 9, 11]['CDEFGAB'.index(nUp)] + (12 if nUp != n else 0) if acc: p += (1 if acc[0] == '^' else -1) * len(acc) if oct: p += (12 if oct[0] == "'" else -12) * len(oct) return p def staffStep(ptc, o, clef, tstep): ndif = 0 if 'stafflines=1' in clef: ndif += 4 # meaning of one line: E (xml) -> B (abc) if not tstep and clef.startswith('bass'): ndif += 12 # transpose bass -> treble (C3 -> A4) if ndif: # diatonic transposition == addition modulo 7 nm7 = 'C,D,E,F,G,A,B'.split(',') n = nm7.index(ptc) + ndif ptc, o = nm7[n % 7], o + n // 7 if o > 4: ptc = ptc.lower() if o > 5: ptc = ptc + (o-5) * "'" if o < 4: ptc = ptc + (4-o) * "," return ptc def setKey(fifths, mode): sharpness = ['Fb', 'Cb', 'Gb', 'Db', 'Ab', 'Eb', 'Bb', 'F', 'C', 'G', 'D', 'A', 'E', 'B', 'F#', 'C#', 'G#', 'D#', 'A#', 'E#', 'B#'] offTab = {'maj': 8, 'ion': 8, 'm': 11, 'min': 11, 'aeo': 11, 'mix': 9, 'dor': 10, 'phr': 12, 'lyd': 7, 'loc': 13, 'non': 8} mode = mode.lower()[:3] # only first three chars, no case key = sharpness[offTab[mode] + fifths] + \ (mode if offTab[mode] != 8 else '') accs = ['F', 'C', 'G', 'D', 'A', 'E', 'B'] if fifths >= 0: msralts = dict(zip(accs[:fifths], fifths * [1])) else: msralts = dict(zip(accs[fifths:], -fifths * [-1])) return key, msralts def insTup(ix, notes, fact): # read one nested tuplet tupcnt = 0 nx = notes[ix] if 'start' in nx.tup: nx.tup.remove('start') # do recursive calls when starts remain tix = ix # index of first tuplet note fn, fd = fact # xml time-mod of the higher level fnum, fden = nx.fact # xml time-mod of the current level tupfact = fnum//fn, fden//fd # abc time mod of this level while ix < len(notes): lastix = ix - 1 nx = notes[ix] if isinstance(nx, Elem) or nx.grace: ix += 1 # skip all non tuplet elements continue if 'start' in nx.tup: # more nested tuplets to start # ix is on the stop note! ix, tupcntR = insTup(ix, notes, tupfact) tupcnt += tupcntR elif nx.fact: tupcnt += 1 # count tuplet elements if 'stop' in nx.tup: nx.tup.remove('stop') break if not nx.fact: # stop on first non tuplet note ix = lastix # back to last tuplet note break ix += 1 # put abc tuplet notation before the recursive ones tup = (tupfact[0], tupfact[1], tupcnt) if tup == (3, 2, 3): tupPrefix = '(3' else: tupPrefix = '(%d:%d:%d' % tup notes[tix].tupabc = tupPrefix + notes[tix].tupabc return ix, tupcnt # ix is on the last tuplet note def mkBroken(vs): # introduce broken rhythms (vs: one voice, one measure) vs = [n for n in vs if isinstance(n, Note)] i = 0 while i < len(vs) - 1: n1, n2 = vs[i], vs[i+1] # scan all adjacent pairs # skip if note in tuplet or has no duration or outside beam if not n1.fact and not n2.fact and n1.dur > 0 and n2.beam: if n1.dur * 3 == n2.dur: n2.dur = (2 * n2.dur) // 3 n1.dur = n1.dur * 2 n1.after = '<' + n1.after i += 1 # do not chain broken rhythms elif n2.dur * 3 == n1.dur: n1.dur = (2 * n1.dur) // 3 n2.dur = n2.dur * 2 n1.after = '>' + n1.after i += 1 # do not chain broken rhythms i += 1 def outVoice(measure, divs, im, ip, unitL): # note/elem objects of one measure in one voice ix = 0 while ix < len(measure): # set all (nested) tuplet annotations nx = measure[ix] if isinstance(nx, Note) and nx.fact and not nx.grace: # read one tuplet, insert annotation(s) ix, tupcnt = insTup(ix, measure, (1, 1)) ix += 1 vs = [] for nx in measure: if isinstance(nx, Note): # xml -> abc duration string durstr = abcdur(nx, divs, unitL) chord = len(nx.ns) > 1 cns = [nt[:-1] for nt in nx.ns if nt.endswith('-')] tie = '' if chord and len(cns) == len(nx.ns): # all chord notes tied nx.ns = cns # chord notes without tie tie = '-' # one tie for whole chord s = nx.tupabc + ''.join(nx.before) if chord: s += '[' for nt in nx.ns: s += nt if chord: s += ']' + tie if s.endswith('-'): s, tie = s[:-1], '-' # split off tie s += durstr + tie # and put it back again s += nx.after nospace = nx.beam else: if isinstance(nx.str, listtype): nx.str = nx.str[0] s = nx.str nospace = 1 if nospace: vs.append(s) else: vs.append(' ' + s) vs = ''.join(vs) # ad hoc: remove multiple pedal directions while vs.find('!ped!!ped!') >= 0: vs = vs.replace('!ped!!ped!', '!ped!') while vs.find('!ped-up!!ped-up!') >= 0: vs = vs.replace('!ped-up!!ped-up!', '!ped-up!') while vs.find('!8va(!!8va)!') >= 0: vs = vs.replace('!8va(!!8va)!', '') # remove empty ottava's return vs def sortMeasure(voice, m): voice.sort(key=lambda o: o.tijd) # sort on time time = 0 v = [] rs = [] # holds rests in between notes for i, nx in enumerate(voice): # establish sequentiality if nx.tijd > time and chkbug(nx.tijd - time, m): # fill hole with invisble rest v.append(Note(nx.tijd - time, 'x')) rs.append(len(v) - 1) if isinstance(nx, Elem): if nx.tijd < time: nx.tijd = time # shift elems without duration to where they fit v.append(nx) time = nx.tijd continue if nx.tijd < time: # overlapping element if nx.ns[0] == 'z': continue # discard overlapping rest if v[-1].tijd <= nx.tijd: # we can do something if v[-1].ns[0] == 'z': # shorten rest v[-1].dur = nx.tijd - v[-1].tijd if v[-1].dur == 0: del v[-1] # nothing left info('overlap in part %d, measure %d: rest shortened' % (m.ixp+1, m.ixm+1)) else: # make a chord of overlap v[-1].ns += nx.ns info('overlap in part %d, measure %d: added chord' % (m.ixp+1, m.ixm+1)) nx.dur = (nx.tijd + nx.dur) - time # the remains if nx.dur <= 0: continue # nothing left nx.tijd = time # append remains else: # give up info('overlapping notes in one voice! part %d, measure %d, note %s discarded' % ( m.ixp+1, m.ixm+1, isinstance(nx, Note) and nx.ns or nx.str)) continue v.append(nx) if isinstance(nx, Note): if nx.ns[0] in 'zx': rs.append(len(v) - 1) # remember rests between notes elif len(rs): if nx.beam and not nx.grace: # copy beam into rests for j in rs: v[j].beam = nx.beam rs = [] # clear rests on each note time = nx.tijd + nx.dur # when a measure contains no elements and no forwards -> no incTime -> s.maxtime = 0 -> right barline # is inserted at time == 0 (in addbar) and is only element in the voice when sortMeasure is called if time == 0: info('empty measure in part %d, measure %d, it should contain at least a rest to advance the time!' % ( m.ixp+1, m.ixm+1)) return v def getPartlist(ps): # correct part-list (from buggy xml-software) xs = [] # the corrected part-list e = [] # stack of opened part-groups for x in list(ps): # insert missing stops, delete double starts if x.tag == 'part-group': num, type = x.get('number'), x.get('type') if type == 'start': if num in e: # missing stop: insert one xs.append(E.Element('part-group', number=num, type='stop')) xs.append(x) else: # normal start xs.append(x) e.append(num) else: if num in e: # normal stop e.remove(num) xs.append(x) else: pass # double stop: skip it else: xs.append(x) for num in reversed(e): # fill missing stops at the end xs.append(E.Element('part-group', number=num, type='stop')) return xs def parseParts(xs, d, e): # -> [elems on current level], rest of xs if not xs: return [], [] x = xs.pop(0) if x.tag == 'part-group': num, type = x.get('number'), x.get('type') if type == 'start': # go one level deeper s = [x.findtext(n, '') for n in ['group-symbol', 'group-barline', 'group-name', 'group-abbreviation']] d[num] = s # remember groupdata by group number e.append(num) # make stack of open group numbers # parse one level deeper to next stop elemsnext, rest1 = parseParts(xs, d, e) # parse the rest on this level elems, rest2 = parseParts(rest1, d, e) return [elemsnext] + elems, rest2 else: # stop: close level and return group-data nums = e.pop() # last open group number in stack order if xs and xs[0].get('type') == 'stop': # two consequetive stops # in the wrong order (tempory solution) if num != nums: # exchange values (only works for two stops!!!) d[nums], d[num] = d[num], d[nums] # retrieve an return groupdata as last element of the group sym = d[num] return [sym], xs else: # parse remaining elements on current level elems, rest = parseParts(xs, d, e) name = x.findtext('part-name', ''), x.findtext('part-abbreviation', '') return [name] + elems, rest def bracePart(part): # put a brace on multistaff part and group voices if not part: return [] # empty part in the score brace = [] for ivs in part: if len(ivs) == 1: # stave with one voice brace.append('%s' % ivs[0]) else: # stave with multiple voices brace += ['('] + ['%s' % iv for iv in ivs] + [')'] brace.append('|') del brace[-1] # no barline at the end if len(part) > 1: brace = ['{'] + brace + ['}'] return brace # collect partnames (accVce) and %%score map (accStf) def prgroupelem(x, gnm, bar, pmap, accVce, accStf): if type(x) == tupletype: # partname-tuple = (part-name, part-abbrev) y = pmap.pop(0) if gnm[0]: # put group-name before part-name x = [n1 + ':' + n2 for n1, n2 in zip(gnm, x)] accVce.append(x) accStf.extend(bracePart(y)) # misuse of group just to add extra name to stave elif len(x) == 2 and type(x[0]) == tupletype: y = pmap.pop(0) # x[0] = partname-tuple, x[1][2:] = groupname-tuple nms = [n1 + ':' + n2 for n1, n2 in zip(x[0], x[1][2:])] accVce.append(nms) accStf.extend(bracePart(y)) else: prgrouplist(x, bar, pmap, accVce, accStf) # collect partnames, scoremap for a part-group def prgrouplist(x, pbar, pmap, accVce, accStf): # bracket symbol, continue barline, group-name-tuple sym, bar, gnm, gabbr = x[-1] bar = bar == 'yes' or pbar # pbar -> the parent has bar accStf.append(sym == 'brace' and '{' or '[') for z in x[:-1]: prgroupelem(z, (gnm, gabbr), bar, pmap, accVce, accStf) if bar: accStf.append('|') if bar: del accStf[-1] # remove last one before close accStf.append(sym == 'brace' and '}' or ']') def compUnitLength(iv, maten, divs): # compute optimal unit length uLmin, minLen = 0, max_int for uL in [4, 8, 16]: # try 1/4, 1/8 and 1/16 vLen = 0 # total length of abc duration strings in this voice for im, m in enumerate(maten): # all measures for e in m[iv]: # all notes in voice iv if isinstance(e, Elem) or e.dur == 0: continue # no real durations # add len of duration string vLen += len(abcdur(e, divs[im], uL)) if vLen < minLen: uLmin, minLen = uL, vLen # remember the smallest return uLmin def doSyllable(syl): txt = '' for e in syl: if e.tag == 'elision': txt += '~' elif e.tag == 'text': # escape - and space characters txt += (e.text or '').replace('_', '\_').replace('-', r'\-').replace(' ', '~') if not txt: return txt if syl.findtext('syllabic') in ['begin', 'middle']: txt += '-' if syl.find('extend') is not None: txt += '_' return txt def checkMelismas(lyrics, maten, im, iv): if im == 0: return maat = maten[im][iv] # notes of the current measure curlyr = lyrics[im][iv] # lyrics dict of current measure prvlyr = lyrics[im-1][iv] # lyrics dict of previous measure for n, (lyrstr, melis) in prvlyr.items(): # all lyric numbers in the previous measure if n not in curlyr and melis: # melisma required, but no lyrics present -> make one! ms = getMelisma(maat) # get a melisma for the current measure if ms: # set melisma as the n-th lyrics of the current measure curlyr[n] = (ms, 0) def getMelisma(maat): # get melisma from notes in maat ms = [] for note in maat: # every note should get an underscore if not isinstance(note, Note): continue # skip Elem's if note.grace: continue # skip grace notes if note.ns[0] in 'zx': break # stop on first rest ms.append('_') return ' '.join(ms) def perc2map(abcIn): fillmap = {'diamond': 1, 'triangle': 1, 'square': 1, 'normal': 1} abc = map(lambda x: x.strip(), percSvg.splitlines()) id = 'default' maps = {'default': []} dmaps = {'default': []} r1 = re.compile(r'V:\s*(\S+)') ls = abcIn.splitlines() for x in ls: if 'I:percmap' in x: noot, step, midi, kop = map(lambda x: x.strip(), x.split()[1:]) if kop in fillmap: kop = kop + '+' + ',' + kop x = '%%%%map perc%s %s print=%s midi=%s heads=%s' % ( id, noot, step, midi, kop) maps[id].append(x) if '%%MIDI' in x: dmaps[id].append(x) if 'V:' in x: r = r1.match(x) if r: id = r.group(1) if id not in maps: maps[id] = [] dmaps[id] = [] ids = sorted(maps.keys()) for id in ids: abc += maps[id] id = 'default' for x in ls: if 'I:percmap' in x: continue if '%%MIDI' in x: continue if 'V:' in x or 'K:' in x: r = r1.match(x) if r: id = r.group(1) abc.append(x) if id in dmaps and len(dmaps[id]) > 0: abc.extend(dmaps[id]) del dmaps[id] if 'perc' in x and 'map=' not in x: x += ' map=perc' if 'map=perc' in x and len(maps[id]) > 0: abc.append('%%voicemap perc' + id) if 'map=off' in x: abc.append('%%voicemap') else: abc.append(x) return '\n'.join(abc) + '\n' def addoct(ptc, o): # xml staff step, xml octave number p = ptc if o > 4: p = ptc.lower() if o > 5: p = p + (o-5) * "'" if o < 4: p = p + (4-o) * "," return p # abc pitch == abc note without accidental def chkbug(dt, m): if dt > m.divs / 16: return 1 # duration should be > 1/64 note info('MuseScore bug: incorrect duration, smaller then 1/64! in measure %d, part %d' % (m.ixm, m.ixp)) return 0 # ---------------- # parser # ---------------- class Parser: note_alts = [ # 3 alternative notations of the same note for tablature mapping [x.strip() for x in '=C, ^C, =D, ^D, =E, =F, ^F, =G, ^G, =A, ^A, =B'.split(',')], [x.strip() for x in '^B, _D,^^C, _E, _F, ^E, _G,^^F, _A,^^G, _B, _C'.split(',')], [x.strip() for x in '__D,^^B,__E,__F,^^D,__G,^^E,__A,_/A,__B,__C,^^A'.split(',')]] step_map = {'C': 0, 'D': 2, 'E': 4, 'F': 5, 'G': 7, 'A': 9, 'B': 11} def __init__(s, options): # unfold repeats, number of chars per line, credit filter level, volta option s.slurBuf = {} # dict of open slurs keyed by slur number # {direction-type + number -> (type, voice | time)} dict for proper closing s.dirStk = {} s.ingrace = 0 # marks a sequence of grace notes s.msc = Music(options) # global music data abstraction s.unfold = options.u # turn unfolding repeats on s.ctf = options.c # credit text filter level s.gStfMap = [] # [[abc voice numbers] for all parts] s.midiMap = [] # midi-settings for each abc voice, in order s.drumInst = {} # inst_id -> midi pitch for channel 10 notes s.drumNotes = {} # (xml voice, abc note) -> (midi note, note head) s.instMid = [] # [{inst id -> midi-settings} for all parts] # default midi settings for channel, program, volume, panning s.midDflt = [-1, -1, -1, -91] # xml-notenames (without octave) with accidentals from the key s.msralts = {} # abc-notenames (with voice number) with passing accidentals s.curalts = {} s.stfMap = {} # xml staff number -> [xml voice number] s.vce2stf = {} # xml voice number -> allocated staff number s.clefMap = {} # xml staff number -> abc clef (for header only) s.curClef = {} # xml staff number -> current abc clef s.stemDir = {} # xml voice number -> current stem direction s.clefOct = {} # xml staff number -> current clef-octave-change s.curStf = {} # xml voice number -> current xml staff number s.nolbrk = options.x # generate no linebreaks ($) s.jscript = options.j # compatibility with javascript version s.ornaments = sorted(note_ornamentation_map.items()) s.doPageFmt = len(options.p) == 1 # translate xml page format s.tstep = options.t # clef determines step on staff (percussion) s.dirtov1 = options.v1 # all directions to first voice of staff s.ped = options.ped # render pedal directions s.wstems = options.stm # translate stem elements s.pedVce = None # voice for pedal directions s.repeat_str = {} # staff number -> [measure number, repeat-text] s.tabVceMap = {} # abc voice num -> [%%map ...] for tab voices s.koppen = {} # noteheads needed for %%map # match slur number n in voice v2, add abc code to before/after def matchSlur(s, type2, n, v2, note2, grace, stopgrace): if type2 not in ['start', 'stop']: return # slur type continue has no abc equivalent if n == None: n = '1' if n in s.slurBuf: type1, v1, note1, grace1 = s.slurBuf[n] if type2 != type1: # slur complete, now check the voice if v2 == v1: # begins and ends in the same voice: keep it # normal slur: start before stop and no grace slur if type1 == 'start' and (not grace1 or not stopgrace): # keep left-right order! note1.before = ['('] + note1.before note2.after += ')' # no else: don't bother with reversed stave spanning slurs del s.slurBuf[n] # slur finished, remove from stack else: # double definition, keep the last info('double slur numbers %s-%s in part %d, measure %d, voice %d note %s, first discarded' % (type2, n, s.msr.ixp+1, s.msr.ixm+1, v2, note2.ns)) s.slurBuf[n] = (type2, v2, note2, grace) else: # unmatched slur, put in dict s.slurBuf[n] = (type2, v2, note2, grace) def doNotations(s, note, nttn, isTab): for key, val in s.ornaments: if nttn.find(key) != None: note.before += [val] # just concat all ornaments trem = nttn.find('ornaments/tremolo') if trem != None: type = trem.get('type') if type == 'single': note.before.insert(0, '!%s!' % (int(trem.text) * '/')) else: note.fact = None # no time modification in ABC if s.tstep: # abc2svg version if type == 'stop': note.before.insert(0, '!trem%s!' % trem.text) else: # abc2xml version if type == 'start': note.before.insert(0, '!%s-!' % (int(trem.text) * '/')) fingering = nttn.findall('technical/fingering') for finger in fingering: # handle multiple finger annotations if not isTab: # fingering goes before chord (addChord) note.before += ['!%s!' % finger.text] snaar = nttn.find('technical/string') if snaar != None and isTab: if s.tstep: fret = nttn.find('technical/fret') if fret != None: note.tab = (snaar.text, fret.text) else: # no double string decos (bug in musescore) deco = '!%s!' % snaar.text if deco not in note.ntdec: note.ntdec += deco wvlns = nttn.findall('ornaments/wavy-line') for wvln in wvlns: if wvln.get('type') == 'start': # keep left-right order! note.before = ['!trill(!'] + note.before elif wvln.get('type') == 'stop': note.after += '!trill)!' glis = nttn.find('glissando') if glis == None: glis = nttn.find('slide') # treat slide as glissando if glis != None: lt = '~' if glis.get('line-type') == 'wavy' else '-' if glis.get('type') == 'start': # keep left-right order! note.before = ['!%s(!' % lt] + note.before elif glis.get('type') == 'stop': note.before = ['!%s)!' % lt] + note.before def tabnote(s, alt, ptc, oct, v, ntrec): p = s.step_map[ptc] + int(alt or '0') # p in -2 .. 13 if p > 11: oct += 1 # octave correction if p < 0: oct -= 1 p = p % 12 # remap p into 0..11 snaar_nw, fret_nw = ntrec.tab # the computed/annotated allocation of nt for i in range(4): # support same note on 4 strings # get alternative representation of same note na = s.note_alts[i % 3][p] o = oct if na in ['^B', '^^B']: o -= 1 # because in adjacent octave if na in ['_C', '__C']: o += 1 if '/' in na or i == 3: o = 9 # emergency notation for 4th string case nt = addoct(na, o) # the current allocation of nt snaar, fret = s.tabmap.get((v, nt), ('', '')) if not snaar: break # note not yet allocated if snaar_nw == snaar: return nt # use present allocation if i == 3: # new allocaion needed but none is free fmt = 'rejected: voice %d note %3s string %s fret %2s remains: string %s fret %s' info(fmt % (v, nt, snaar_nw, fret_nw, snaar, fret), 1) ntrec.tab = (snaar, fret) # for tablature map (voice, note) -> (string, fret) s.tabmap[v, nt] = ntrec.tab # ABC code always in key C (with midi pitch alterations) return nt def ntAbc(s, ptc, oct, note, v, ntrec, isTab): # pitch, octave -> abc notation acc2alt = {'double-flat': -2, 'flat-flat': -2, 'flat': -1, 'natural': 0, 'sharp': 1, 'sharp-sharp': 2, 'double-sharp': 2} oct += s.clefOct.get(s.curStf[v], 0) # minus clef-octave-change value acc = note.findtext('accidental') # should be the notated accidental alt = note.findtext('pitch/alter') # pitch alteration (midi) if ntrec.tab: # implies s.tstep is true (options.t was given) return s.tabnote(alt, ptc, oct, v, ntrec) elif isTab and s.tstep: nt = ['__', '_', '', '^', '^^'][int( alt or '0') + 2] + addoct(ptc, oct) info('no string notation found for note %s in voice %d' % (nt, v), 1) p = addoct(ptc, oct) if alt == None and s.msralts.get(ptc, 0): alt = 0 # no alt but key implies alt -> natural!! if alt == None and (p, v) in s.curalts: alt = 0 # no alt but previous note had one -> natural!! if acc == None and alt == None: return p # no acc, no alt elif acc != None: alt = acc2alt[acc] # acc takes precedence over the pitch here! else: # now see if we really must add an accidental alt = int(float(alt)) if (p, v) in s.curalts: # the note in this voice has been altered before if alt == s.curalts[(p, v)]: return p # alteration still the same elif alt == s.msralts.get(ptc, 0): return p # alteration implied by the key # in xml we have separate notated ties and playback ties tieElms = note.findall('tie') + note.findall('notations/tied') if 'stop' in [e.get('type') for e in tieElms]: return p # don't alter tied notes info('accidental %d added in part %d, measure %d, voice %d note %s' % ( alt, s.msr.ixp+1, s.msr.ixm+1, v+1, p)) s.curalts[(p, v)] = alt # and finally ... prepend the accidental p = ['__', '_', '=', '^', '^^'][alt+2] + p return p def doNote(s, n): # parse a musicXML note tag note = Note() v = int(n.findtext('voice', '1')) if s.isSib: v += 100 * int(n.findtext('staff', '1')) # repair bug in Sibelius chord = n.find('chord') != None p = n.findtext('pitch/step') or n.findtext('unpitched/display-step') o = n.findtext( 'pitch/octave') or n.findtext('unpitched/display-octave') r = n.find('rest') numer = n.findtext('time-modification/actual-notes') if numer: denom = n.findtext('time-modification/normal-notes') note.fact = (int(numer), int(denom)) note.tup = [x.get('type') for x in n.findall('notations/tuplet')] dur = n.findtext('duration') grc = n.find('grace') note.grace = grc != None # strings with ABC stuff that goes before or after a note/chord note.before, note.after = [], '' if note.grace and not s.ingrace: # open a grace sequence s.ingrace = 1 note.before = ['{'] if grc.get('slash') == 'yes': note.before += ['/'] # acciaccatura stopgrace = not note.grace and s.ingrace if stopgrace: # close the grace sequence s.ingrace = 0 s.msc.lastnote.after += '}' # close grace on lastenote.after if dur == None or note.grace: dur = 0 if r == None and n.get('print-object') == 'no': if chord: return # turn invisible notes (that advance the time) into invisible rests r = 1 note.dur = int(dur) if r == None and (not p or not o): # not a rest and no pitch s.msc.cnt.inc('nopt', v) # count unpitched notes o, p = 5, 'E' # make it an E5 ?? isTab = s.curClef and s.curClef.get(s.curStf[v], '').startswith('tab') nttn = n.find('notations') # add ornaments if nttn != None: s.doNotations(note, nttn, isTab) e = n.find('stem') if r == None else None # no !stemless! before rest if e != None and e.text == 'none' and (not isTab or v in s.hasStems or s.tstep): note.before += ['s'] abcOut.stemless = 1 e = n.find('accidental') if e != None and e.get('parentheses') == 'yes': note.ntdec += '!courtesy!' if r != None: noot = 'x' if n.get('print-object') == 'no' or isTab else 'z' else: noot = s.ntAbc(p, int(o), n, v, note, isTab) if n.find('unpitched') != None: clef = s.curClef[s.curStf[v]] # the current clef for this voice # (clef independent) step value of note on the staff step = staffStep(p, int(o), clef, s.tstep) instr = n.find('instrument') instId = instr.get('id') if instr != None else 'dummyId' midi = s.drumInst.get(instId, abcMid(noot)) # replace spaces in xml notehead names for percmap nh = n.findtext('notehead', '').replace(' ', '-') if nh == 'x': noot = '^' + noot.replace('^', '').replace('_', '') if nh in ['circle-x', 'diamond', 'triangle']: noot = '_' + noot.replace('^', '').replace('_', '') if nh and n.find('notehead').get('filled', '') == 'yes': nh += '+' if nh and n.find('notehead').get('filled', '') == 'no': nh += '-' # keep data for percussion map s.drumNotes[(v, noot)] = (step, midi, nh) # in xml we have separate notated ties and playback ties tieElms = n.findall('tie') + n.findall('notations/tied') # n can have stop and start tie if 'start' in [e.get('type') for e in tieElms]: noot = noot + '-' note.beam = sum([1 for b in n.findall('beam') if b.text in [ 'continue', 'end']]) + int(note.grace) lyrlast = 0 rsib = re.compile(r'^.*verse') for e in n.findall('lyric'): # also do Sibelius numbers lyrnum = int(rsib.sub('', e.get('number', '1'))) if lyrnum == 0: lyrnum = lyrlast + 1 # and correct Sibelius bugs else: lyrlast = lyrnum note.lyrs[lyrnum] = doSyllable(e) stemdir = n.findtext('stem') if s.wstems and (stemdir == 'up' or stemdir == 'down'): if stemdir != s.stemDir.get(v, ''): s.stemDir[v] = stemdir s.msc.appendElem(v, '[I:stemdir %s]' % stemdir) if chord: s.msc.addChord(note, noot) else: xmlstaff = int(n.findtext('staff', '1')) if s.curStf[v] != xmlstaff: # the note should go to another staff dstaff = xmlstaff - s.curStf[v] # relative new staff number # remember the new staff for this voice s.curStf[v] = xmlstaff # insert a move before the note s.msc.appendElem(v, '[I:staff %+d]' % dstaff) s.msc.appendNote(v, note, noot) # s.msc.lastnote points to the last real note/chord inserted above for slur in n.findall('notations/slur'): s.matchSlur(slur.get('type'), slur.get( 'number'), v, s.msc.lastnote, note.grace, stopgrace) # match slur definitions def doAttr(s, e): # parse a musicXML attribute tag teken = {'C1': 'alto1', 'C2': 'alto2', 'C3': 'alto', 'C4': 'tenor', 'F4': 'bass', 'F3': 'bass3', 'G2': 'treble', 'TAB': 'tab', 'percussion': 'perc'} dvstxt = e.findtext('divisions') if dvstxt: s.msr.divs = int(dvstxt) # for transposing instrument steps = int(e.findtext('transpose/chromatic', '0')) fifths = e.findtext('key/fifths') first = s.msc.tijd == 0 and s.msr.ixm == 0 # first attributes in first measure if fifths: key, s.msralts = setKey( int(fifths), e.findtext('key/mode', 'major')) if first and not steps and abcOut.key == 'none': # first measure -> header, if not transposing instrument or percussion part! abcOut.key = key elif key != abcOut.key or not first: s.msr.attr += '[K:%s]' % key # otherwise -> voice beats = e.findtext('time/beats') if beats: unit = e.findtext('time/beat-type') mtr = beats + '/' + unit if first: abcOut.mtr = mtr # first measure -> header else: s.msr.attr += '[M:%s]' % mtr # otherwise -> voice s.msr.mtr = int(beats), int(unit) # duration of measure in xml-divisions s.msr.mdur = (s.msr.divs * s.msr.mtr[0] * 4) // s.msr.mtr[1] for ms in e.findall('measure-style'): n = int(ms.get('number', '1')) # staff number voices = s.stfMap[n] # all voices of staff n for mr in ms.findall('measure-repeat'): ty = mr.get('type') if ty == 'start': # remember start measure number and text voor each staff s.repeat_str[n] = [s.msr.ixm, mr.text] for v in voices: # insert repeat into all voices, value will be overwritten at stop s.msc.insertElem(v, s.repeat_str[n]) elif ty == 'stop': # calculate repeat measure count for this staff n start_ix, text_ = s.repeat_str[n] repeat_count = s.msr.ixm - start_ix if text_: mid_str = "%s " % text_ repeat_count /= int(text_) else: mid_str = "" # overwrite repeat with final string s.repeat_str[n][0] = '[I:repeat %s%d]' % ( mid_str, repeat_count) del s.repeat_str[n] # remove closed repeats toct = e.findtext('transpose/octave-change', '') if toct: steps += 12 * int(toct) # extra transposition of toct octaves for clef in e.findall('clef'): # a part can have multiple staves # local staff number for this clef n = int(clef.get('number', '1')) sgn = clef.findtext('sign') line = clef.findtext('line', '') if sgn not in [ 'percussion', 'TAB'] else '' cs = teken.get(sgn + line, '') oct = clef.findtext('clef-octave-change', '') or '0' if oct: cs += {-2: '-15', -1: '-8', 1: '+8', 2: '+15'}.get(int(oct), '') # xml playback pitch -> abc notation pitch s.clefOct[n] = -int(oct) if steps: cs += ' transpose=' + str(steps) stfdtl = e.find('staff-details') if stfdtl and int(stfdtl.get('number', '1')) == n: lines = stfdtl.findtext('staff-lines') if lines: lns = '|||' if lines == '3' and sgn == 'TAB' else lines cs += ' stafflines=%s' % lns s.stafflines = int(lines) # remember for tab staves strings = stfdtl.findall('staff-tuning') if strings: tuning = [st.findtext( 'tuning-step') + st.findtext('tuning-octave') for st in strings] cs += ' strings=%s' % ','.join(tuning) capo = stfdtl.findtext('capo') if capo: cs += ' capo=%s' % capo # keep track of current clef (for percmap) s.curClef[n] = cs if first: # clef goes to header (where it is mapped to voices) s.clefMap[n] = cs else: # clef change to all voices of staff n voices = s.stfMap[n] for v in voices: if n != s.curStf[v]: # voice is not at its home staff n dstaff = n - s.curStf[v] # reset current staff at start of measure to home position s.curStf[v] = n s.msc.appendElem(v, '[I:staff %+d]' % dstaff) s.msc.appendElem(v, '[K:%s]' % cs) def findVoice(s, i, es): # directions belong to a staff stfnum = int(es[i].findtext('staff', 1)) vs = s.stfMap[stfnum] # voices in this staff # directions to first voice of staff v1 = vs[0] if vs else 1 if s.dirtov1: return stfnum, v1, v1 # option --v1 for e in es[i+1:]: # or to the voice of the next note if e.tag == 'note': v = int(e.findtext('voice', '1')) if s.isSib: # repair bug in Sibelius v += 100 * int(e.findtext('staff', '1')) # use our own staff allocation stf = s.vce2stf[v] return stf, v, v1 # voice of next note, first voice of staff if e.tag == 'backup': break return stfnum, v1, v1 # no note found, fall back to v1 def doDirection(s, e, i, es): # parse a musicXML direction tag def addDirection(x, vs, tijd, stfnum): if not x: return vs = s.stfMap[stfnum] if '!8v' in x else [ vs] # ottava's go to all voices of staff for v in vs: if tijd != None: # insert at time of encounter s.msc.appendElemT(v, x.replace( '(', ')').replace('ped', 'ped-up'), tijd) else: s.msc.appendElem(v, x) def startStop(dtype, vs, stfnum=1): typmap = {'down': '!8va(!', 'up': '!8vb(!', 'crescendo': '!<(!', 'diminuendo': '!>(!', 'start': '!ped!'} type = t.get('type', '') # key to match the closing direction k = dtype + t.get('number', '1') if type in typmap: # opening the direction x = typmap[type] if k in s.dirStk: # closing direction already encountered stype, tijd = s.dirStk[k] del s.dirStk[k] if stype == 'stop': addDirection(x, vs, tijd, stfnum) else: info('%s direction %s has no stop in part %d, measure %d, voice %d' % ( dtype, stype, s.msr.ixp+1, s.msr.ixm+1, vs+1)) # remember voice and type for closing s.dirStk[k] = ((type, vs)) else: # remember voice and type for closing s.dirStk[k] = ((type, vs)) elif type == 'stop': if k in s.dirStk: # matching open direction found type, vs = s.dirStk[k] del s.dirStk[k] # into the same voice if type == 'stop': info('%s direction %s has double stop in part %d, measure %d, voice %d' % ( dtype, type, s.msr.ixp+1, s.msr.ixm+1, vs+1)) x = '' else: x = typmap[type].replace( '(', ')').replace('ped', 'ped-up') else: # closing direction found before opening s.dirStk[k] = ('stop', s.msc.tijd) x = '' # delay code generation until opening found else: raise ValueError('wrong direction type') addDirection(x, vs, None, stfnum) tempo, wrdstxt = None, '' plcmnt = e.get('placement') stf, vs, v1 = s.findVoice(i, es) jmp = '' # for jump sound elements: dacapo, dalsegno and family jmps = [('dacapo', 'D.C.'), ('dalsegno', 'D.S.'), ('tocoda', 'dacoda'), ('fine', 'fine'), ('coda', 'O'), ('segno', 'S')] # there are many possible attributes for sound t = e.find('sound') if t != None: minst = t.find('midi-instrument') if minst: prg = t.findtext('midi-instrument/midi-program') chn = t.findtext('midi-instrument/midi-channel') vids = [v for v, id in s.vceInst.items() if id == minst.get('id')] if vids: # direction for the indentified voice, not the staff vs = vids[0] parm, inst = ('program', str(int(prg) - 1) ) if prg else ('channel', chn) if inst and abcOut.volpan > 0: s.msc.appendElem(vs, '[I:MIDI= %s %s]' % (parm, inst)) tempo = t.get('tempo') # look for tempo attribute if tempo: # hope it is a number and insert in voice 1 tempo = '%.0f' % float(tempo) tempo_units = (1, 4) # always 1/4 for sound elements! for r, v in jmps: if t.get(r, ''): jmp = v break dirtypes = e.findall('direction-type') for dirtyp in dirtypes: units = {'whole': (1, 1), 'half': ( 1, 2), 'quarter': (1, 4), 'eighth': (1, 8)} metr = dirtyp.find('metronome') if metr != None: t = metr.findtext('beat-unit', '') if t in units: tempo_units = units[t] else: tempo_units = units['quarter'] if metr.find('beat-unit-dot') != None: tempo_units = simplify( tempo_units[0] * 3, tempo_units[1] * 2) # look for a number tmpro = re.search('[.\d]+', metr.findtext('per-minute')) if tmpro: tempo = tmpro.group() # overwrites the value set by the sound element of this direction t = dirtyp.find('wedge') if t != None: startStop('wedge', vs) allwrds = dirtyp.findall('words') # insert text annotations if not allwrds: # treat rehearsal mark as text annotation allwrds = dirtyp.findall('rehearsal') for wrds in allwrds: if jmp: # ignore the words when a jump sound element is present in this direction s.msc.appendElem(vs, '!%s!' % jmp, 1) # to voice break plc = plcmnt == 'below' and '_' or '^' if float(wrds.get('default-y', '0')) < 0: plc = '_' wrdstxt += (wrds.text or '').replace('"', '\\"').replace('\n', '\\n') wrdstxt = wrdstxt.strip() for key, val in dynamics_map.items(): if dirtyp.find('dynamics/' + key) != None: s.msc.appendElem(vs, val, 1) # to voice if dirtyp.find('coda') != None: s.msc.appendElem(vs, 'O', 1) if dirtyp.find('segno') != None: s.msc.appendElem(vs, 'S', 1) t = dirtyp.find('octave-shift') if t != None: # assume size == 8 for the time being startStop('octave-shift', vs, stf) t = dirtyp.find('pedal') if t != None and s.ped: if not s.pedVce: s.pedVce = vs startStop('pedal', s.pedVce) if dirtyp.findtext('other-direction') == 'diatonic fretting': s.diafret = 1 if tempo: # hope it is a number and insert in voice 1 tempo = '%.0f' % float(tempo) if s.msc.tijd == 0 and s.msr.ixm == 0: # first measure -> header abcOut.tempo = tempo abcOut.tempo_units = tempo_units else: # otherwise -> 1st voice s.msc.appendElem(v1, '[Q:%d/%d=%s]' % (tempo_units[0], tempo_units[1], tempo)) if wrdstxt: s.msc.appendElem(vs, '"%s%s"' % (plc, wrdstxt), 1) # to voice, but after tempo def doHarmony(s, e, i, es): # parse a musicXMl harmony tag _, vt, _ = s.findVoice(i, es) short = {'major': '', 'minor': 'm', 'augmented': '+', 'diminished': 'dim', 'dominant': '7', 'half-diminished': 'm7b5'} accmap = {'major': 'maj', 'dominant': '', 'minor': 'm', 'diminished': 'dim', 'augmented': '+', 'suspended': 'sus'} modmap = {'second': '2', 'fourth': '4', 'seventh': '7', 'sixth': '6', 'ninth': '9', '11th': '11', '13th': '13'} altmap = {'1': '#', '0': '', '-1': 'b'} root = e.findtext('root/root-step', '') alt = altmap.get(e.findtext('root/root-alter'), '') sus = '' kind = e.findtext('kind', '') if kind in short: kind = short[kind] elif '-' in kind: # xml chord names: - triad, mod = kind.split('-') kind = accmap.get(triad, '') + modmap.get(mod, '') if kind.startswith('sus'): kind, sus = '', kind # sus-suffix goes to the end elif kind == 'none': kind = e.find('kind').get('text', '') degrees = e.findall('degree') for d in degrees: # chord alterations kind += altmap.get(d.findtext('degree-alter'), '') + d.findtext('degree-value', '') kind = kind.replace('79', '9').replace( '713', '13').replace('maj6', '6') bass = e.findtext('bass/bass-step', '') + \ altmap.get(e.findtext('bass/bass-alter'), '') s.msc.appendElem(vt, '"%s%s%s%s%s"' % (root, alt, kind, sus, bass and '/' + bass), 1) def doBarline(s, e): # 0 = no repeat, 1 = begin repeat, 2 = end repeat rep = e.find('repeat') if rep != None: rep = rep.get('direction') if s.unfold: # unfold repeat, don't translate barlines return rep and (rep == 'forward' and 1 or 2) or 0 loc = e.get('location', 'right') # right is the default if loc == 'right': # only change style for the right side style = e.findtext('bar-style') if style == 'light-light': s.msr.rline = '||' elif style == 'light-heavy': s.msr.rline = '|]' if rep != None: # repeat found if rep == 'forward': s.msr.lline = ':' else: s.msr.rline = ':|' # override barline style end = e.find('ending') if end != None: if end.get('type') == 'start': n = end.get('number', '1').replace('.', '').replace(' ', '') try: # should be a list of integers list(map(int, n.split(','))) except: n = '"%s"' % n.strip() # illegal musicXML s.msr.lnum = n # assume a start is always at the beginning of a measure elif s.msr.rline == '|': # stop and discontinue the same in ABC ? s.msr.rline = '||' # to stop on a normal barline use || in ABC ? return 0 def doPrint(s, e): # print element, measure number -> insert a line break if e.get('new-system') == 'yes' or e.get('new-page') == 'yes': if not s.nolbrk: return '$' # a line break def doPartList(s, e): # translate the start/stop-event-based xml-partlist into proper tree for sp in e.findall('part-list/score-part'): midi = {} for m in sp.findall('midi-instrument'): x = [m.findtext(p, s.midDflt[i]) for i, p in enumerate( ['midi-channel', 'midi-program', 'volume', 'pan'])] pan = float(x[3]) if pan >= -90 and pan <= 90: # would be better to map behind-pannings pan = (float(x[3]) + 90) / 180 * \ 127 # xml between -90 and +90 midi[m.get('id')] = [int(x[0]), int(x[1]), float( x[2]) * 1.27, pan] # volume 100 -> midi 127 up = m.findtext('midi-unpitched') if up: # store midi-pitch for channel 10 notes s.drumInst[m.get('id')] = int(up) - 1 s.instMid.append(midi) ps = e.find('part-list') # partlist = [groupelem] # groupelem = partname | grouplist xs = getPartlist(ps) # grouplist = [groupelem, ..., groupdata] partlist, _ = parseParts(xs, {}, []) # groupdata = [group-symbol, group-barline, group-name, group-abbrev] return partlist def mkTitle(s, e): def filterCredits(y): # y == filter level, higher filters less cs = [] for x in credits: # skip redundant credit lines if y < 6 and (x in title or x in mvttl): continue # sure skip if y < 5 and (x in composer or x in lyricist): continue # almost sure skip if y < 4 and ((title and title in x) or (mvttl and mvttl in x)): continue # may skip too much if y < 3 and ([1 for c in composer if c in x] or [1 for c in lyricist if c in x]): continue # skips too much if y < 2 and re.match(r'^[\d\W]*$', x): continue # line only contains numbers and punctuation cs.append(x) if y == 0 and (title + mvttl): cs = '' # default: only credit when no title set return cs title = e.findtext('work/work-title', '').strip() mvttl = e.findtext('movement-title', '').strip() composer, lyricist, credits = [], [], [] for creator in e.findall('identification/creator'): if creator.text: if creator.get('type') == 'composer': composer += [line.strip() for line in creator.text.split('\n')] elif creator.get('type') in ('lyricist', 'transcriber'): lyricist += [line.strip() for line in creator.text.split('\n')] for rights in e.findall('identification/rights'): if rights.text: lyricist += [line.strip() for line in rights.text.split('\n')] for credit in e.findall('credit'): cs = ''.join(e.text or '' for e in credit.findall('credit-words')) credits += [re.sub(r'\s*[\r\n]\s*', ' ', cs)] credits = filterCredits(s.ctf) if title: title = 'T:%s\n' % title.replace('\n', '\nT:') if mvttl: title += 'T:%s\n' % mvttl.replace('\n', '\nT:') if credits: title += '\n'.join(['T:%s' % c for c in credits]) + '\n' if composer: title += '\n'.join(['C:%s' % c for c in composer]) + '\n' if lyricist: title += '\n'.join(['Z:%s' % c for c in lyricist]) + '\n' if title: abcOut.title = title[:-1] s.isSib = 'Sibelius' in (e.findtext( 'identification/encoding/software') or '') if s.isSib: info('Sibelius MusicXMl is unreliable') def doDefaults(s, e): if not s.doPageFmt: return # return if -pf option absent d = e.find('defaults') if d == None: return mils = d.findtext('scaling/millimeters') # mills == staff height (mm) tenths = d.findtext('scaling/tenths') # staff height in tenths if not mils or not tenths: return xmlScale = float(mils) / float(tenths) / 10 # tenths -> mm space = 10 * xmlScale # space between staff lines == 10 tenths # 0.2117 cm = 6pt = space between staff lines for scale = 1.0 in abcm2ps abcScale = space / 0.2117 abcOut.pageFmt['scale'] = abcScale eks = 2 * ['page-layout/'] + 4 * ['page-layout/page-margins/'] eks = [ a+b for a, b in zip(eks, 'page-height,page-width,left-margin,right-margin,top-margin,bottom-margin'.split(','))] for i in range(6): v = d.findtext(eks[i]) # pagekeys [0] == scale already done, skip it k = abcOut.pagekeys[i+1] if not abcOut.pageFmt[k] and v: try: abcOut.pageFmt[k] = float(v) * xmlScale # -> cm except: info('illegal value %s for xml element %s', (v, eks[i])) continue # just skip illegal values def locStaffMap(s, part, maten): # map voice to staff with majority voting vmap = {} # {voice -> {staff -> n}} count occurrences of voice in staff s.vceInst = {} # {voice -> instrument id} for this part s.msc.vnums = {} # voice id's # XML voice nums with at least one note with a stem (for tab key) s.hasStems = {} s.stfMap, s.clefMap = {}, {} # staff -> [voices], staff -> clef ns = part.findall('measure/note') for n in ns: # count staff allocations for all notes v = int(n.findtext('voice', '1')) if s.isSib: # repair bug in Sibelius v += 100 * int(n.findtext('staff', '1')) s.msc.vnums[v] = 1 # collect all used voice id's in this part sn = int(n.findtext('staff', '1')) s.stfMap[sn] = [] if v not in vmap: vmap[v] = {sn: 1} else: d = vmap[v] # counter for voice v # ++ number of allocations for staff sn d[sn] = d.get(sn, 0) + 1 x = n.find('instrument') if x != None: s.vceInst[v] = x.get('id') x, noRest = n.findtext('stem'), n.find('rest') == None if noRest and (not x or x != 'none'): s.hasStems[v] = 1 # XML voice v has at least one stem vks = list(vmap.keys()) if s.jscript or s.isSib: vks.sort() for v in vks: # choose staff with most allocations for each voice xs = [(n, sn) for sn, n in vmap[v].items()] xs.sort() stf = xs[-1][1] # the winner: staff with most notes of voice v s.stfMap[stf].append(v) s.vce2stf[v] = stf # reverse map s.curStf[v] = stf # current staff of XML voice v def addStaffMap(s, vvmap): # vvmap: xml voice number -> global abc voice number part = [] # default: brace on staffs of one part # s.stfMap has xml staff and voice numbers for stf, voices in sorted(s.stfMap.items()): locmap = [vvmap[iv] for iv in voices if iv in vvmap] nostem = [(iv not in s.hasStems) for iv in voices if iv in vvmap] # same order as locmap if locmap: # abc voice number of staff stf part.append(locmap) # {xml staff number -> clef} clef = s.clefMap.get(stf, 'treble') for i, iv in enumerate(locmap): clef_attr = '' if clef.startswith('tab'): if nostem[i] and 'nostems' not in clef: clef_attr = ' nostems' if s.diafret and 'diafret' not in clef: clef_attr += ' diafret' # for all voices in the part # add nostems when all notes of voice had no stem abcOut.clefs[iv] = clef + clef_attr s.gStfMap.append(part) def addMidiMap(s, ip, vvmap): # map abc voices to midi settings instr = s.instMid[ip] # get the midi settings for this part if instr.values(): # default settings = first instrument defInstr = list(instr.values())[0] else: defInstr = s.midDflt # no instruments defined xs = [] for v, vabc in vvmap.items(): # xml voice num, abc voice num ks = sorted(s.drumNotes.items()) ds = [(nt, step, midi, head) for (vd, nt), (step, midi, head) in ks if v == vd] # map perc notes # get the instrument-id for part with multiple instruments id = s.vceInst.get(v, '') if id in instr: # id is defined as midi-instrument in part-list xs.append((vabc, instr[id] + ds)) # get midi settings for id else: # only one instrument for this part xs.append((vabc, defInstr + ds)) xs.sort() # put abc voices in order s.midiMap.extend([midi for v, midi in xs]) snaarmap = ['E', 'G', 'B', 'd', 'f', 'a', "c'", "e'"] diamap = '0,1-,1,1+,2,3,3,4,4,5,6,6+,7,8-,8,8+,9,10,10,11,11,12,13,13+,14'.split( ',') for k in sorted(s.tabmap.keys()): # add %%map's for all tab voices v, noot = k snaar, fret = s.tabmap[k] if s.diafret: fret = diamap[int(fret)] vabc = vvmap[v] snaar = s.stafflines - int(snaar) xs = s.tabVceMap.get(vabc, []) xs.append('%%%%map tab%d %s print=%s heads=kop%s\n' % (vabc, noot, snaarmap[snaar], fret)) s.tabVceMap[vabc] = xs s.koppen[fret] = 1 # collect noteheads for SVG defs def parse(s, xmltxt): vvmapAll = {} # collect xml->abc voice maps (vvmap) of all parts e = E.fromstring(xmltxt) s.mkTitle(e) s.doDefaults(e) partlist = s.doPartList(e) parts = e.findall('part') for ip, p in enumerate(parts): maten = p.findall('measure') s.locStaffMap(p, maten) # {voice -> staff} for this part # (xml voice, abc note) -> (midi note, note head) s.drumNotes = {} s.clefOct = {} # xml staff number -> current clef-octave-change s.curClef = {} # xml staff number -> current abc clef s.stemDir = {} # xml voice number -> current stem direction s.tabmap = {} # (xml voice, abc note) -> (string, fret) s.diafret = 0 # use diatonic fretting s.stafflines = 5 s.msc.initVoices(newPart=1) # create all voices aantalHerhaald = 0 # keep track of number of repititions herhaalMaat = 0 # target measure of the repitition divisions = [] # current value of for each measure s.msr = Measure(ip) # various measure data while s.msr.ixm < len(maten): maat = maten[s.msr.ixm] herhaal, lbrk = 0, '' s.msr.reset() s.curalts = {} # passing accidentals are reset each measure es = list(maat) for i, e in enumerate(es): if e.tag == 'note': s.doNote(e) elif e.tag == 'attributes': s.doAttr(e) elif e.tag == 'direction': s.doDirection(e, i, es) elif e.tag == 'sound': # sound element directly in measure! s.doDirection(maat, i, es) elif e.tag == 'harmony': s.doHarmony(e, i, es) elif e.tag == 'barline': herhaal = s.doBarline(e) elif e.tag == 'backup': dt = int(e.findtext('duration')) if chkbug(dt, s.msr): s.msc.incTime(-dt) elif e.tag == 'forward': dt = int(e.findtext('duration')) if chkbug(dt, s.msr): s.msc.incTime(dt) elif e.tag == 'print': lbrk = s.doPrint(e) s.msc.addBar(lbrk, s.msr) divisions.append(s.msr.divs) if herhaal == 1: herhaalMaat = s.msr.ixm s.msr.ixm += 1 elif herhaal == 2: if aantalHerhaald < 1: # jump s.msr.ixm = herhaalMaat aantalHerhaald += 1 else: aantalHerhaald = 0 # reset s.msr.ixm += 1 # just continue else: s.msr.ixm += 1 # on to the next measure for rv in s.repeat_str.values(): # close hanging measure-repeats without stop rv[0] = '[I:repeat %s %d]' % (rv[1], 1) vvmap = s.msc.outVoices(divisions, ip, s.isSib) s.addStaffMap(vvmap) # update global staff map s.addMidiMap(ip, vvmap) vvmapAll.update(vvmap) if vvmapAll: # skip output if no part has any notes abcOut.mkHeader(s.gStfMap, partlist, s.midiMap, s.tabVceMap, s.koppen) else: info('nothing written, %s has no notes ...' % abcOut.fnmext) def vertaal(xmltxt, **options_parm): class options: # the default option values u = 0 b = 0 n = 0 c = 0 v = 0 d = 0 m = 0 x = 0 t = 0 stm = 0 mnum = -1 p = 'f' s = 0 j = 0 v1 = 0 ped = 0 global abcOut, info_list info_list = [] str = '' for opt in options_parm: # assign the given options setattr(options, opt, options_parm[opt]) options.p = options.p.split(',') if options.p else [] # [] | [string] abcOut = ABCoutput('', '', 0, options) psr = Parser(options) try: psr.parse(xmltxt) # parse xmltxt str = abcOut.getABC() # ABC output info('%s written with %d voices' % (abcOut.fnmext, len(abcOut.clefs)), warn=0) except: etype, value, traceback = sys.exc_info() # works in python 2 & 3 info('** %s occurred: %s' % (etype, value), 0) return (str, ''.join(info_list)) # and the diagnostic messages # ---------------- # Main Program # ---------------- if __name__ == '__main__': from optparse import OptionParser from glob import glob from zipfile import ZipFile ustr = '%prog [-h] [-u] [-m] [-c C] [-d D] [-n CPL] [-b BPL] [-o DIR] [-v V]\n' ustr += '[-x] [-p PFMT] [-t] [-s] [-i] [--v1] [--noped] [--stems] [ ...]' parser = OptionParser(usage=ustr, version=str(VERSION)) parser.add_option("-u", action="store_true", help="unfold simple repeats") parser.add_option("-m", action="store", help="0 -> no %%MIDI, 1 -> minimal %%MIDI, 2-> all %%MIDI", default=0) parser.add_option("-c", action="store", type="int", help="set credit text filter to C", default=0, metavar='C') parser.add_option("-d", action="store", type="int", help="set L:1/D", default=0, metavar='D') parser.add_option("-n", action="store", type="int", help="CPL: max number of characters per line (default 100)", default=0, metavar='CPL') parser.add_option("-b", action="store", type="int", help="BPL: max number of bars per line", default=0, metavar='BPL') parser.add_option("-o", action="store", help="store abc files in DIR", default='', metavar='DIR') parser.add_option("-v", action="store", type="int", help="set volta typesetting behaviour to V", default=0, metavar='V') parser.add_option("-x", action="store_true", help="output no line breaks") parser.add_option("-p", action="store", help="pageformat PFMT (cm) = scale, pageheight, pagewidth, leftmargin, rightmargin, topmargin, botmargin", default='', metavar='PFMT') parser.add_option("-j", action="store_true", help="switch for compatibility with javascript version") parser.add_option("-t", action="store_true", help="translate perc- and tab-staff to ABC code with %%map, %%voicemap") parser.add_option("-s", action="store_true", help="shift node heads 3 units left in a tab staff") parser.add_option("--v1", action="store_true", help="start-stop directions allways to first voice of staff") parser.add_option("--noped", action="store_false", help="skip all pedal directions", dest='ped', default=True) parser.add_option("--stems", action="store_true", help="translate stem directions", dest='stm', default=False) parser.add_option("-i", action="store_true", help="read xml file from standard input") options, args = parser.parse_args() if options.n < 0: parser.error('only values >= 0') if options.b < 0: parser.error('only values >= 0') if options.d and options.d not in [2**n for n in range(10)]: parser.error('D should be on of %s' % ','.join([str(2**n) for n in range(10)])) options.p = options.p and options.p.split(',') or [] # ==> [] | [string] if len(args) == 0 and not options.i: parser.error('no input file given') pad = options.o if pad: if not os.path.exists(pad): os.mkdir(pad) if not os.path.isdir(pad): parser.error('%s is not a directory' % pad) fnmext_list = [] for i in args: fnmext_list += glob(i) if options.i: fnmext_list = ['stdin.xml'] if not fnmext_list: parser.error('none of the input files exist') for X, fnmext in enumerate(fnmext_list): fnm, ext = os.path.splitext(fnmext) if ext.lower() not in ('.xml', '.mxl', '.musicxml'): info('skipped input file %s, it should have extension .xml or .mxl' % fnmext) continue if os.path.isdir(fnmext): info('skipped directory %s. Only files are accepted' % fnmext) continue if fnmext == 'stdin.xml': fobj = sys.stdin elif ext.lower() == '.mxl': # extract .xml file from .mxl file z = ZipFile(fnmext) for n in z.namelist(): # assume there is always an xml file in a mxl archive !! if (n[:4] != 'META') and (n[-4:].lower() == '.xml'): fobj = z.open(n) break # assume only one MusicXML file per archive else: fobj = open(fnmext, 'rb') # open regular xml file # create global ABC output object abcOut = ABCoutput(fnm + '.abc', pad, X, options) psr = Parser(options) # xml parser try: # parse file fobj and write abc to .abc psr.parse(fobj.read()) abcOut.writeall() except: etype, value, traceback = sys.exc_info() # works in python 2 & 3 info('** %s occurred: %s in %s' % (etype, value, fnmext), 0)