mirror of
https://github.com/microtherion/VocalEasel.git
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767 lines
20 KiB
Python
767 lines
20 KiB
Python
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# macros.py
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"""
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This module is an integeral part of the program
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MMA - Musical Midi Accompaniment.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Bob van der Poel <bob@mellowood.ca>
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The macros are stored, set and parsed in this single-instance
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class. At the top of MMAparse an instance in created with
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something like: macros=MMMmacros.Macros().
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"""
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import random
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import MMA.midiC
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import MMA.translate
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import MMA.patSolo
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import MMA.patAria
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import MMA.volume
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import MMA.grooves
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import MMA.parse
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import MMA.seqrnd
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import gbl
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from MMA.lyric import lyric
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from MMA.common import *
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from MMA.safe_eval import safe_eval
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class Macros:
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vars={} # storage
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expandMode = 1 # flag for variable expansion
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pushstack = []
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def __init__(self):
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self.vars={}
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def clear(self, ln):
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if ln:
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error("VarClear does not take an argument.")
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self.vars={}
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if gbl.debug:
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print "All variable definitions cleared."
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def stackValue(self, s):
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self.pushstack.append(' '.join(s))
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def sysvar(self, s):
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""" Create an internal macro. """
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# Simple/global system values
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if s == 'KEYSIG':
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a=MMA.patSolo.keySig.kSig
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if a >= 0:
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f='#'
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else:
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f='b'
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return "%s%s" % (abs(a), f)
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elif s == 'TIME':
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return str(gbl.QperBar)
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elif s == 'TEMPO':
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return str(gbl.tempo)
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elif s == 'VOLUME':
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return str(int(MMA.volume.volume * 100)) # INT() is important
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elif s == 'VOLUMERATIO':
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return str((MMA.volume.vTRatio * 100))
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elif s == 'LASTVOLUME':
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return str(int(MMA.volume.lastVolume * 100))
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elif s == 'GROOVE':
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return MMA.grooves.currentGroove
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elif s == 'LASTGROOVE':
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return MMA.grooves.lastGroove
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elif s == 'SEQRND':
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if MMA.seqrnd.seqRnd[0] == 0: return "Off"
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if MMA.seqrnd.seqRnd[0] == 1: return "On"
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return ' '.join(MMA.seqrnd.seqRnd[1:])
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elif s == 'SEQSIZE':
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return str(gbl.seqSize)
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elif s == 'SWINGMODE':
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if gbl.swingMode:
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a = "On"
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else:
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a = "Off"
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return "%s Skew=%s" % (a, gbl.swingSkew)
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elif s == 'TRANSPOSE':
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return str(gbl.transpose)
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elif s == 'STACKVALUE':
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if not self.pushstack:
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error( "Empty push/pull variable stack")
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return self.pushstack.pop()
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elif s == 'DEBUG':
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return "Debug=%s Filenames=%s Patterns=%s " \
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"Sequence=%s Runtime=%s Warnings=%s Expand=%s" % \
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(gbl.debug, gbl.showFilenames, gbl.pshow, gbl.seqshow, \
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gbl.showrun, int(not gbl.noWarn), gbl.showExpand)
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elif s == 'LASTDEBUG':
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return "Debug=%s Filenames=%s Patterns=%s " \
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"Sequence=%s Runtime=%s Warnings=%s Expand=%s" % \
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(gbl.Ldebug, gbl.LshowFilenames, gbl.Lpshow, gbl.Lseqshow, \
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gbl.Lshowrun, int(not gbl.LnoWarn), gbl.LshowExpand)
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elif s == 'VEXPAND':
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if self.expandMode:
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return "On"
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else:
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return "Off"
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elif s == "MIDISPLIT":
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return ' '.join([str(x) for x in MMA.midi.splitChannels])
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elif s == 'SEQRNDWEIGHT':
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return ' '.join([str(x) for x in MMA.seqrnd.seqRndWeight])
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elif s == 'AUTOLIBPATH':
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return gbl.autoLib
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elif s == 'LIBPATH':
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return gbl.libPath
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elif s == 'INCPATH':
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return gbl.incPath
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elif s == 'VOICETR':
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return MMA.translate.vtable.retlist()
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elif s == 'TONETR':
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return MMA.translate.dtable.retlist()
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elif s == 'OUTPATH':
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return gbl.outPath
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elif s == 'BARNUM':
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return str(gbl.barNum + 1)
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elif s == 'LINENUM':
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return str(gbl.lineno)
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elif s == 'LYRIC':
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return lyric.setting()
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# Track vars ... these are in format TRACKNAME_VAR
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a=s.rfind('_')
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if a==-1:
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error("Unknown system variable $_%s" % s)
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tname = s[:a]
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func = s[a+1:]
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try:
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t=gbl.tnames[tname]
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except:
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error("System variable $_%s refers to nonexistent track." % s )
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if func == 'ACCENT':
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r=[]
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for s in t.accent:
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r.append("{")
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for b,v in s:
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r.append(str((b/gbl.BperQ)+1))
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r.append(str(int(v * 100)))
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r.append("}")
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return ' '.join(r)
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elif func == 'ARTICULATE':
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return ' '.join([str(x) for x in t.artic])
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elif func == 'CHANNEL':
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return str(t.channel)
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elif func == 'COMPRESS':
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return ' '.join([str(x) for x in t.compress])
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elif func == 'DIRECTION':
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if t.vtype == 'ARIA':
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return ' '.join([str(x) for x in t.selectDir])
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else:
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return ' '.join([str(x) for x in t.direction])
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elif func == 'DUPROOT':
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if t.vtype != "CHORD":
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error("Only CHORD tracks have DUPROOT")
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return ' '.join([str(x) for x in t.dupRoot])
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elif func == 'HARMONY':
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return ' '.join([str(x) for x in t.harmony])
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elif func == 'HARMONYVOLUME':
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return ' '.join([str(int(a * 100)) for a in t.harmonyVolume])
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elif func == 'INVERT':
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return ' '.join([str(x) for x in t.invert])
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elif func == 'LIMIT':
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return str( t.chordLimit )
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elif func == 'MALLET':
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if t.vtype not in ("SOLO", "MELODY"):
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error("Mallet only valid in SOLO and MELODY tracks")
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return "Mallet Rate=%i Decay=%i" % (t.mallet, t.malletDecay*100)
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elif func == 'OCTAVE':
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return ' '.join([str(a/12) for a in t.octave])
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elif func == 'RANGE':
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return ' '.join([str(x) for x in t.chordRange])
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elif func == 'RSKIP':
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return ' '.join([str(int(a * 100)) for a in t.rSkip])
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elif func == 'RTIME':
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return ' '.join([str(x) for x in t.rTime])
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elif func == 'RVOLUME':
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return ' '.join([str(int(a * 100)) for a in t.rVolume])
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elif func == 'SEQUENCE':
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tmp = []
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for a in range(gbl.seqSize):
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tmp.append('{' + t.formatPattern(t.sequence[a]) + '}')
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return ' '.join(tmp)
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elif func == 'SEQRND':
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if t.seqRnd: return 'On'
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else: return 'Off'
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elif func == 'SEQRNDWEIGHT':
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return ' '.join([str(x) for x in t.seqRndWeight])
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elif func == 'SPAN':
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return "%s %s" % (t.spanStart, t.spanEnd)
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elif func == 'STRUM':
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if t.vtype != "CHORD":
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error("Only CHORD tracks have STRUM")
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return ' '.join([str(x) for x in t.strum])
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elif func == 'TONE':
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if t.vtype != "DRUM":
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error("Only DRUM tracks have TONE")
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return ' '.join([MMA.midiC.valueToDrum(a) for a in t.toneList])
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elif func == 'UNIFY':
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return ' '.join([str(x) for x in t.unify])
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elif func == 'VOICE':
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return ' '.join([MMA.midiC.valueToInst(a) for a in t.voice])
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elif func == 'VOICING':
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if t.vtype != 'CHORD':
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error("Only CHORD tracks have VOICING")
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t=t.voicing
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return "Mode=%s Range=%s Center=%s RMove=%s Move=%s Dir=%s" % \
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(t.mode, t.range, t.center, t.random, t.bcount, t.dir)
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elif func == 'VOLUME':
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return ' '.join([str(int(a * 100)) for a in t.volume])
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else:
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error("Unknown system track variable %s" % s)
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def expand(self, l):
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""" Loop though input line and make variable subsitutions.
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MMA variables are pretty simple ... any word starting
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with a "$xxx" is a variable.
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l - list
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RETURNS: new list with all subs done.
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"""
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if not self.expandMode:
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return l
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gotmath=0
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while 1: # Loop until no more subsitutions have been done
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sub=0
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for i,s in enumerate(l):
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if s[0]=='$':
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s = s[1:].upper()
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frst = s[0]
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if frst == '$': # $$ - don't expand (done in IF clause)
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continue
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elif frst == '(': # flag math macro
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gotmath = 1
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continue
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# we have a var, see if system or user. Set 'ex'
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elif frst == '_': # system var
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ex=self.sysvar(s[1:])
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elif s in self.vars: # user var?
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ex = self.vars[s]
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else: # unknown var...error
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error("User variable '%s' has not been defined" % s )
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if type(ex) == type([]): # MSET variable
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if len(ex):
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gbl.inpath.push( ex[1:], [gbl.lineno] * len(ex[1:]))
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if len(ex):
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ex=ex[0]
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else:
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ex=[]
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else: # regular SET variable
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ex=ex.split()
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l=l[:i] + ex + l[i+1:] # ex might be a list, so this is needed
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sub=1
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break
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if not sub:
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break
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# all the mma internal and system macros are expanded. Now check for math.
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if gotmath:
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l = ' '.join(l) # join back into one line
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while 1:
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try:
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s1 = l.index('$(') # any '$(' left?
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except:
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break # nope, done
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# find trailing )
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nest=0
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s2 = s1+2
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max = len(l)
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while 1:
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if l[s2] == '(': nest+=1
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if l[s2] == ')':
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if not nest:
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break
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else:
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nest-=1
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s2 += 1
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if s2 >= max:
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error("Unmatched delimiter in '%s'." % l)
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l = l[:s1] + str(safe_eval( l[s1+2:s2].strip())) + l[s2+1:]
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l=l.split()
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return l
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def showvars(self, ln):
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""" Display all currently defined variables. """
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if len(ln):
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for a in ln:
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a=a.upper()
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if a in self.vars:
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print "$%s: %s" % (a, self.vars[a])
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else:
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print "$%s - not defined" % a
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else:
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print "User variables defined:"
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kys = self.vars.keys()
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kys.sort()
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mx = 0
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for a in kys: # get longest name
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if len(a) > mx:
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mx = len(a)
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mx = mx + 2
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for a in kys:
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print " %-*s %s" % (mx, '$'+a, self.vars[a])
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def getvname(self, v):
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""" Helper routine to validate variable name. """
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if v[0] in ('$', '_'):
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error("Variable names cannot start with a '$' or '_'")
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return v.upper()
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def rndvar(self, ln):
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""" Set a variable randomly from a list. """
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if len(ln) < 2:
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error("Use: RndSet Variable_Name <list of possible values>")
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v = self.getvname(ln[0])
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self.vars[v] = random.choice(ln[1:])
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if gbl.debug:
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print "Variable $%s randomly set to '%s'" % (v, self.vars[v])
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def newsetvar(self, ln):
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""" Set a new variable. Ignore if already set. """
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if not len(ln):
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error("Use: NSET VARIABLE_NAME [Value] [[+] [Value]]")
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if self.getvname(ln[0]) in self.vars:
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return
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self.setvar(ln)
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def setvar(self, ln):
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""" Set a variable. Not the difference between the next 2 lines:
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Set Bar BAR
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Set Foo AAA BBB $bar
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$Foo == "AAA BBB BAR"
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Set Foo AAA + BBB + $bar
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$Foo == "AAABBBBAR"
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The "+"s just strip out interveing spaces.
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"""
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if len(ln) < 1:
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error("Use: SET VARIABLE_NAME [Value] [[+] [Value]]")
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v=self.getvname(ln.pop(0))
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t=''
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addSpace = 0
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for i,a in enumerate(ln):
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if a == '+':
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addSpace = 0
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continue
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else:
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if addSpace:
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t += ' '
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t += a
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addSpace = 1
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self.vars[v]=t
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if gbl.debug:
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print "Variable $%s == '%s'" % (v, self.vars[v])
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def msetvar(self, ln):
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""" Set a variable to a number of lines. """
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if len(ln) !=1:
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error("Use: MSET VARIABLE_NAME <lines> MsetEnd")
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v=self.getvname(ln[0])
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lm=[]
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while 1:
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l=gbl.inpath.read()
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if not l:
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error("Reached EOF while looking for MSetEnd")
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cmd=l[0].upper()
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if cmd in ("MSETEND", 'ENDMSET'):
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if len(l) > 1:
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error("No arguments permitted for MSetEnd/EndMSet")
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else:
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break
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lm.append(l)
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self.vars[v]=lm
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def unsetvar(self, ln):
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""" Delete a variable reference. """
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if len(ln) != 1:
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error("Use: UNSET Variable")
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v=ln[0].upper()
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if v[0] == '_':
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error("Internal variables cannot be deleted or modified")
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if v in self.vars:
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del(macros.vars[v])
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if gbl.debug:
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print "Variable '%s' UNSET" % v
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else:
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warning("Attempt to UNSET nonexistent variable '%s'" % v)
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def vexpand(self, ln):
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if len(ln) == 1:
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cmd = ln[0].upper()
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else:
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cmd=''
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if cmd == 'ON':
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self.expandMode=1
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if gbl.debug:
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print "Variable expansion ON"
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elif cmd == 'OFF':
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self.expandMode=0
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if gbl.debug:
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print "Variable expansion OFF"
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else:
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error("Use: Vexpand ON/Off")
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def varinc(self, ln):
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""" Increment a variable. """
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if len(ln) == 1:
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inc=1
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elif len(ln) == 2:
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inc = stof(ln[1], "Expecting a value (not %s) for Inc" % ln[1])
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else:
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error("Usage: INC Variable [value]")
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v=ln[0].upper()
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if v[0] == '_':
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error("Internal variables cannot be modified")
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if not v in self.vars:
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error("Variable '%s' not defined" % v)
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vl=stoi(self.vars[v], "Variable must be a value to increment") + inc
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if vl == int(vl):
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vl = int(vl)
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self.vars[v]=str(vl)
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if gbl.debug:
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print "Variable '%s' INC to %s" % (v, self.vars[v])
|
|
|
|
|
|
def vardec(self, ln):
|
|
""" Decrement a varaiable. """
|
|
|
|
if len(ln) == 1:
|
|
dec = 1
|
|
|
|
elif len(ln) == 2:
|
|
dec = stof(ln[1], "Expecting a value (not %s) for Inc" % ln[1])
|
|
|
|
else:
|
|
error("Usage: DEC Variable [value]")
|
|
|
|
v=ln[0].upper()
|
|
if v[0] == '_':
|
|
error("Internal variables cannot be modified")
|
|
|
|
if not v in self.vars:
|
|
error("Variable '%s' not defined" % v)
|
|
|
|
vl=stoi(self.vars[v], "Variable must be a value to decrement") - dec
|
|
|
|
if vl == int(vl):
|
|
vl = int(vl)
|
|
|
|
self.vars[v]=str(vl)
|
|
|
|
if gbl.debug:
|
|
print "Variable '%s' DEC to %s" % (v, self.vars[v])
|
|
|
|
|
|
def varIF(self, ln):
|
|
""" Conditional variable if/then. """
|
|
|
|
def expandV(l):
|
|
""" Private func. """
|
|
|
|
l=l.upper()
|
|
|
|
if l[:2] == '$$':
|
|
l=l.upper()
|
|
l=l[2:]
|
|
if not l in self.vars:
|
|
error("String Variable '%s' does not exist" % l)
|
|
l=self.vars[l]
|
|
|
|
try:
|
|
v=float(l)
|
|
except:
|
|
try:
|
|
v=int(l,0) # this lets us convert HEX/OCTAL
|
|
except:
|
|
v=None
|
|
|
|
return ( l.upper(), v )
|
|
|
|
|
|
def readblk():
|
|
""" Private, reads a block until ENDIF, IFEND or ELSE.
|
|
Return (Terminator, lines[], linenumbers[] )
|
|
"""
|
|
|
|
q=[]
|
|
qnum=[]
|
|
nesting=0
|
|
|
|
while 1:
|
|
l=gbl.inpath.read()
|
|
if not l:
|
|
error("EOF reached while looking for EndIf")
|
|
|
|
cmd=l[0].upper()
|
|
if cmd == 'IF':
|
|
nesting+=1
|
|
if cmd in ("IFEND", 'ENDIF', 'ELSE'):
|
|
if len(l) > 1:
|
|
error("No arguments permitted for IfEnd/EndIf/Else")
|
|
if not nesting:
|
|
break
|
|
if cmd != 'ELSE':
|
|
nesting -= 1
|
|
|
|
q.append(l)
|
|
qnum.append(gbl.lineno)
|
|
|
|
return (cmd, q, qnum)
|
|
|
|
|
|
if len(ln)<2:
|
|
error("Usage: IF <Operator> ")
|
|
|
|
action = ln[0].upper()
|
|
|
|
# 1. do the unary options: DEF, NDEF
|
|
|
|
if action in ('DEF', 'NDEF'):
|
|
if len(ln) != 2:
|
|
error("Usage: IF %s VariableName" % action)
|
|
|
|
v=ln[1].upper()
|
|
retpoint = 2
|
|
|
|
if action == 'DEF':
|
|
compare = v in self.vars
|
|
elif action == 'NDEF':
|
|
compare = ( v not in self.vars )
|
|
else:
|
|
error("Unreachable unary conditional")
|
|
|
|
|
|
# 2. Binary ops: EQ, NE, etc.
|
|
|
|
elif action in ('LT', 'LE', 'EQ', 'GE', 'GT', 'NE'):
|
|
if len(ln) != 3:
|
|
error("Usage: VARS %s Value1 Value2" % action)
|
|
|
|
|
|
s1,v1 = expandV(ln[1])
|
|
s2,v2 = expandV(ln[2])
|
|
|
|
if type(v1) == type(1.0) and type(v2) == type(1.0):
|
|
s1=v1
|
|
s2=v2
|
|
|
|
|
|
retpoint = 3
|
|
|
|
if action == 'LT':
|
|
compare = (v1 < v2)
|
|
elif action == 'LE':
|
|
compare = (v1 <= v2)
|
|
elif action == 'EQ':
|
|
compare = (v1 == v2)
|
|
elif action == 'GE':
|
|
compare = (v1 >= v2)
|
|
elif action == 'GT':
|
|
compare = (v1 > v2)
|
|
elif action == 'NE':
|
|
compare = (v1 != v2)
|
|
else:
|
|
error("Unreachable binary conditional")
|
|
|
|
else:
|
|
error("Usage: IF <CONDITON> ...")
|
|
|
|
|
|
""" Go read until end of if block.
|
|
We shove the block back if the compare was true.
|
|
Unless, the block is terminated by an ELSE ... then we need
|
|
to read another block and push back one of the two.
|
|
"""
|
|
|
|
cmd, q, qnum = readblk()
|
|
|
|
|
|
if cmd == 'ELSE':
|
|
cmd, q1, qnum1 = readblk()
|
|
|
|
if cmd == 'ELSE':
|
|
error("Only one ELSE is permitted in IF construct")
|
|
|
|
if not compare:
|
|
compare = 1
|
|
q = q1
|
|
qnum = qnum1
|
|
|
|
if compare:
|
|
gbl.inpath.push( q, qnum )
|
|
|
|
|
|
|
|
def domath(s):
|
|
""" A simple math factoring func. Just does add, sub, mult, divide. """
|
|
print '>>>',s
|
|
s = ' '.join(s)
|
|
|
|
try:
|
|
s = eval(s)
|
|
|
|
except:
|
|
error("Error in '%s' expression." % s)
|
|
print s
|
|
return str(s)
|
|
|
|
|
|
macros = Macros()
|