Spaces:
Sleeping
Sleeping
File size: 59,712 Bytes
f65fe85 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 |
# musicxml.py
# -*- coding: utf-8 -*-
#
# This file is part of LilyPond, the GNU music typesetter.
#
# Copyright (C) 2005--2020 Han-Wen Nienhuys <[email protected]>,
# 2007-2011 Reinhold Kainhofer <[email protected]>
#
# LilyPond is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# LilyPond 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
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
import copy
from fractions import Fraction
import re
import sys
import warnings
import lilylib as ly
import musicexp
import musicxml2ly_conversion
import utilities
class Xml_node(object):
def __init__(self):
self._children = []
self._data = None
self._original = None
self._name = 'xml_node'
self._parent = None
self._attribute_dict = {}
def get_parent(self):
return self._parent
def is_first(self):
return self._parent.get_typed_children(self.__class__)[0] == self
def original(self):
return self._original
def get_name(self):
return self._name
def get_text(self):
if self._data:
return self._data
if not self._children:
return ''
return ''.join([c.get_text() for c in self._children])
def message(self, msg):
ly.warning(msg)
p = self
while p:
ly.progress(' In: <%s %s>\n' % (p._name, ' '.join(
['%s=%s' % item for item in list(p._attribute_dict.items())])))
p = p.get_parent()
def dump(self, indent=''):
ly.debug_output('%s<%s%s>' % (indent, self._name, ''.join(
[' %s=%s' % item for item in list(self._attribute_dict.items())])))
non_text_children = [
c for c in self._children if not isinstance(c, Hash_text)]
if non_text_children:
ly.debug_output('\n')
for c in self._children:
c.dump(indent + " ")
if non_text_children:
ly.debug_output(indent)
ly.debug_output('</%s>\n' % self._name)
def get_typed_children(self, klass):
if not klass:
return []
else:
return [c for c in self._children if isinstance(c, klass)]
def get_named_children(self, nm):
return self.get_typed_children(get_class(nm))
def get_named_child(self, nm):
return self.get_maybe_exist_named_child(nm)
def get_children(self, predicate):
return [c for c in self._children if predicate(c)]
def get_all_children(self):
return self._children
def get_maybe_exist_named_child(self, name):
return self.get_maybe_exist_typed_child(get_class(name))
def get_maybe_exist_typed_child(self, klass):
cn = self.get_typed_children(klass)
if len(cn) == 0:
return None
else:
if len(cn) > 1:
warnings.warn(_('more than one child of class %s, all but'
'the first will be ignored') % klass.__name__)
return cn[0]
def get_unique_typed_child(self, klass):
cn = self.get_typed_children(klass)
if len(cn) != 1:
ly.error(self.__dict__)
raise RuntimeError(
'Child is not unique for %s found %d' % (klass, cn))
return cn[0]
def get_named_child_value_number(self, name, default):
n = self.get_maybe_exist_named_child(name)
if n:
return int(n.get_text())
else:
return default
class Music_xml_node(Xml_node):
def __init__(self):
Xml_node.__init__(self)
self.duration = Fraction(0)
self.start = Fraction(0)
self.converted = False
self.voice_id = None
class Music_xml_spanner(Music_xml_node):
def get_type(self):
if hasattr(self, 'type'):
return self.type
else:
return 0
def get_size(self):
if hasattr(self, 'size'):
return int(self.size)
else:
return 0
class Measure_element(Music_xml_node):
def get_voice_id(self):
voice = self.get_maybe_exist_named_child('voice')
if voice:
return voice.get_text()
else:
return self.voice_id
def is_first(self):
# Look at all measure elements(previously we had self.__class__, which
# only looked at objects of the same type!
cn = self._parent.get_typed_children(Measure_element)
# But only look at the correct voice; But include Attributes, too, which
# are not tied to any particular voice
cn = [c for c in cn if(
c.get_voice_id() == self.get_voice_id()) or isinstance(c, Attributes)]
return cn[0] == self
class Work(Xml_node):
def get_work_information(self, tag):
wt = self.get_maybe_exist_named_child(tag)
if wt:
return wt.get_text()
else:
return ''
def get_work_title(self):
return self.get_work_information('work-title')
def get_work_number(self):
return self.get_work_information('work-number')
# def get_opus(self):
# return self.get_work_information('opus')
class Identification(Xml_node):
def get_rights(self):
rights = self.get_named_children('rights')
ret = []
for r in rights:
text = r.get_text()
# if this Xml_node has an attribute, such as 'type="words"',
# include it in the header. Otherwise, it is assumed that
# the text contents of this node looks something like this:
# 'Copyright: X.Y.' and thus already contains the relevant
# information.
if hasattr(r, 'type'):
rights_type = r.type.title() # capitalize first letter
result = ''.join([rights_type, ': ', text])
ret.append(result)
else:
ret.append(text)
return "\n".join(ret)
# get contents of the source-element(usually used for publishing information).(These contents are saved in a custom variable named "source" in the header of the .ly file.)
def get_source(self):
source = self.get_named_children('source')
ret = []
for r in source:
ret.append(r.get_text())
return "\n".join(ret)
def get_creator(self, type):
creators = self.get_named_children('creator')
# return the first creator tag that has the particular type
for i in creators:
if hasattr(i, 'type') and i.type == type:
return i.get_text()
return None
def get_composer(self):
c = self.get_creator('composer')
if c:
return c
creators = self.get_named_children('creator')
# return the first creator tag that has no type at all
for i in creators:
if not hasattr(i, 'type'):
return i.get_text()
return None
def get_arranger(self):
return self.get_creator('arranger')
def get_editor(self):
return self.get_creator('editor')
def get_poet(self):
v = self.get_creator('lyricist')
if v:
return v
v = self.get_creator('poet')
return v
def get_encoding_information(self, type):
enc = self.get_named_children('encoding')
if enc:
children = enc[0].get_named_children(type)
if children:
return children[0].get_text()
else:
return None
def get_encoding_software(self):
return self.get_encoding_information('software')
def get_encoding_date(self):
return self.get_encoding_information('encoding-date')
def get_encoding_person(self):
return self.get_encoding_information('encoder')
def get_encoding_description(self):
return self.get_encoding_information('encoding-description')
def get_encoding_software_list(self):
enc = self.get_named_children('encoding')
software = []
for e in enc:
softwares = e.get_named_children('software')
for s in softwares:
software.append(s.get_text())
return software
def get_file_description(self):
misc = self.get_named_children('miscellaneous')
for m in misc:
misc_fields = m.get_named_children('miscellaneous-field')
for mf in misc_fields:
if hasattr(mf, 'name') and mf.name == 'description':
return mf.get_text()
return None
class Credit(Xml_node):
def get_type(self):
type = self.get_maybe_exist_named_child('credit-type')
if type is not None:
return type.get_text()
else:
return None
def find_type(self, credits):
sizes = self.get_font_sizes(credits)
sizes.sort(reverse=True)
ys = self.get_default_ys(credits)
ys.sort(reverse=True)
xs = self.get_default_xs(credits)
xs.sort(reverse=True)
# Words child of the self credit-element
words = self.get_maybe_exist_named_child('credit-words')
size = None
x = None
y = None
halign = None
valign = None
justify = None
if words is not None:
if hasattr(words, 'font-size'):
size = utilities.string_to_integer(getattr(words, 'font-size'))
if hasattr(words, 'default-x'):
x = round(float(getattr(words, 'default-x')))
if hasattr(words, 'default-y'):
y = round(float(getattr(words, 'default-y')))
if hasattr(words, 'halign'):
halign = getattr(words, 'halign')
if hasattr(words, 'valign'):
valign = getattr(words, 'valign')
if hasattr(words, 'justify'):
justify = getattr(words, 'justify')
if (size and size == max(sizes) and y and y == max(ys) and
(justify or halign) and (justify == 'center' or halign == 'center')):
return 'title'
elif (y and y > min(ys) and y < max(ys) and (justify or halign) and
(justify == 'center' or halign == 'center')):
return 'subtitle'
elif ((justify or halign) and (justify == 'left' or halign == 'left') and
(not x or x == min(xs))):
return 'lyricist'
elif ((justify or halign) and (justify == 'right' or halign == 'right')
and (not x or x == max(xs))):
return 'composer'
elif size and size == min(sizes) and y == min(ys):
return 'rights'
# Special cases for Finale NotePad
elif valign and valign == 'top' and y and y == ys[1]:
return 'subtitle'
elif valign and valign == 'top' and x and x == min(xs):
return 'lyricist'
elif valign and valign == 'top' and y and y == min(ys):
return 'rights'
# Other special cases
elif valign and valign == 'bottom':
return 'rights'
elif len([i for i, item in enumerate(ys) if item == y]) == 2:
# The first one is the composer, the second one is the lyricist
return 'composer'
return None # no type recognized
def get_font_sizes(self, credits):
sizes = []
for cred in credits:
words = cred.get_maybe_exist_named_child('credit-words')
if((words is not None) and hasattr(words, 'font-size')):
sizes.append(getattr(words, 'font-size'))
return list(map(utilities.string_to_integer, sizes))
def get_default_xs(self, credits):
default_xs = []
for cred in credits:
words = cred.get_maybe_exist_named_child('credit-words')
if((words is not None) and hasattr(words, 'default-x')):
default_xs.append(getattr(words, 'default-x'))
return list(map(round, list(map(float, default_xs))))
def get_default_ys(self, credits):
default_ys = []
for cred in credits:
words = cred.get_maybe_exist_named_child('credit-words')
if words is not None and hasattr(words, 'default-y'):
default_ys.append(getattr(words, 'default-y'))
return list(map(round, list(map(float, default_ys))))
def get_text(self):
words = self.get_maybe_exist_named_child('credit-words')
if words is not None:
return words.get_text()
else:
return ''
class Duration(Music_xml_node):
def get_length(self):
dur = int(self.get_text()) * Fraction(1, 4)
return dur
class Hash_text(Music_xml_node):
def dump(self, indent=''):
ly.debug_output(self._data.strip())
class Pitch(Music_xml_node):
def get_step(self):
ch = self.get_unique_typed_child(get_class('step'))
step = ch.get_text().strip()
return step
def get_octave(self):
ch = self.get_unique_typed_child(get_class('octave'))
octave = ch.get_text().strip()
return int(octave)
def get_alteration(self):
ch = self.get_maybe_exist_typed_child(get_class('alter'))
return utilities.interpret_alter_element(ch)
def to_lily_object(self):
p = musicexp.Pitch()
p.alteration = self.get_alteration()
p.step = musicxml2ly_conversion.musicxml_step_to_lily(self.get_step())
p.octave = self.get_octave() - 4
return p
class Unpitched(Music_xml_node):
def get_step(self):
ch = self.get_unique_typed_child(get_class('display-step'))
step = ch.get_text().strip()
return step
def get_octave(self):
ch = self.get_unique_typed_child(get_class('display-octave'))
if ch:
octave = ch.get_text().strip()
return int(octave)
else:
return None
def to_lily_object(self):
p = None
step = self.get_step()
if step:
p = musicexp.Pitch()
p.step = musicxml2ly_conversion.musicxml_step_to_lily(step)
octave = self.get_octave()
if octave and p:
p.octave = octave - 4
return p
class Measure_element (Music_xml_node):
def get_voice_id(self):
voice = self.get_maybe_exist_named_child('voice')
if voice:
return voice.get_text()
else:
return self.voice_id
class Attributes(Measure_element):
def __init__(self):
Measure_element.__init__(self)
self._dict = {}
self._original_tag = None
self._time_signature_cache = None
def is_first(self):
cn = self._parent.get_typed_children(self.__class__)
if self._original_tag:
return cn[0] == self._original_tag
else:
return cn[0] == self
def set_attributes_from_previous(self, dict):
self._dict.update(dict)
def read_self(self):
for c in self.get_all_children():
self._dict[c.get_name()] = c
def get_named_attribute(self, name):
return self._dict.get(name)
def single_time_sig_to_fraction(self, sig):
if len(sig) < 2:
return 0
n = 0
for i in sig[0:-1]:
n += i
return Fraction(n, sig[-1])
def get_measure_length(self):
sig = self.get_time_signature()
if not sig or len(sig) == 0:
return 1
if isinstance(sig[0], list):
# Complex compound time signature
l = 0
for i in sig:
l += self.single_time_sig_to_fraction(i)
return l
else:
# Simple(maybe compound) time signature of the form(beat, ..., type)
return self.single_time_sig_to_fraction(sig)
return 0
def get_time_signature(self):
"Return time sig as a(beat, beat-type) tuple. For compound signatures,"
"return either(beat, beat,..., beat-type) or((beat,..., type), "
"(beat,..., type), ...)."
if self._time_signature_cache:
return self._time_signature_cache
try:
mxl = self.get_named_attribute('time')
if not mxl:
return None
if mxl.get_maybe_exist_named_child('senza-misura'):
# TODO: Handle pieces without a time signature!
ly.warning(
_("Senza-misura time signatures are not yet supported!"))
return(4, 4)
else:
signature = []
current_sig = []
for i in mxl.get_all_children():
if isinstance(i, Beats):
beats = i.get_text().strip().split("+")
current_sig = [int(j) for j in beats]
elif isinstance(i, BeatType):
current_sig.append(int(i.get_text()))
signature.append(current_sig)
current_sig = []
if isinstance(signature[0], list) and len(signature) == 1:
signature = signature[0]
self._time_signature_cache = signature
return signature
except(KeyError, ValueError):
self.message(
_("Unable to interpret time signature! Falling back to 4/4."))
return(4, 4)
# returns clef information in the form("cleftype", position, octave-shift)
def get_clef_information(self):
clefinfo = ['G', 2, 0]
mxl = self.get_named_attribute('clef')
if not mxl:
return clefinfo
sign = mxl.get_maybe_exist_named_child('sign')
if sign:
clefinfo[0] = sign.get_text()
line = mxl.get_maybe_exist_named_child('line')
if line:
clefinfo[1] = int(line.get_text())
octave = mxl.get_maybe_exist_named_child('clef-octave-change')
if octave:
clefinfo[2] = int(octave.get_text())
return clefinfo
def get_key_signature(self):
"return(fifths, mode) tuple if the key signatures is given as "
"major/minor in the Circle of fifths. Otherwise return an alterations"
"list of the form [[step,alter<,octave>], [step,alter<,octave>], ...], "
"where the octave values are optional."
key = self.get_named_attribute('key')
if not key:
return None
fifths_elm = key.get_maybe_exist_named_child('fifths')
if fifths_elm:
mode_node = key.get_maybe_exist_named_child('mode')
mode = None
if mode_node:
mode = mode_node.get_text()
if not mode or mode == '':
mode = 'major'
fifths = int(fifths_elm.get_text())
# TODO: Shall we try to convert the key-octave and the cancel, too?
return(fifths, mode)
else:
alterations = []
current_step = 0
for i in key.get_all_children():
if isinstance(i, KeyStep):
current_step = i.get_text().strip()
elif isinstance(i, KeyAlter):
alterations.append(
[current_step, utilities.interpret_alter_element(i)])
elif isinstance(i, KeyOctave):
nr = -1
if hasattr(i, 'number'):
nr = int(i.number)
if(nr > 0) and (nr <= len(alterations)):
# MusicXML Octave 4 is middle C -> shift to 0
alterations[nr - 1].append(int(i.get_text()) - 4)
else:
i.message(_("Key alteration octave given for a "
"non-existing alteration nr. %s, available numbers: %s!") % (nr, len(alterations)))
return alterations
def get_transposition(self):
return self.get_named_attribute('transpose')
class Barline(Measure_element):
def to_lily_object(self):
# retval contains all possible markers in the order:
# 0..bw_ending, 1..bw_repeat, 2..barline, 3..fw_repeat, 4..fw_ending
retval = {}
bartype_element = self.get_maybe_exist_named_child("bar-style")
repeat_element = self.get_maybe_exist_named_child("repeat")
ending_element = self.get_maybe_exist_named_child("ending")
bartype = None
if bartype_element:
bartype = bartype_element.get_text()
if repeat_element and hasattr(repeat_element, 'direction'):
repeat = musicxml2ly_conversion.RepeatMarker()
repeat.direction = {"forward": -1, "backward": 1}.get(
repeat_element.direction, 0)
if((repeat_element.direction == "forward" and bartype == "heavy-light") or
(repeat_element.direction == "backward" and bartype == "light-heavy")):
bartype = None
if hasattr(repeat_element, 'times'):
try:
repeat.times = int(repeat_element.times)
except ValueError:
repeat.times = 2
repeat.event = self
if repeat.direction == -1:
retval[3] = repeat
else:
retval[1] = repeat
if ending_element and hasattr(ending_element, 'type'):
ending = musicxml2ly_conversion.EndingMarker()
ending.direction = {"start": -1, "stop": 1, "discontinue": 1}.get(
ending_element.type, 0)
ending.event = self
if ending.direction == -1:
retval[4] = ending
else:
retval[0] = ending
# TODO. ending number=""
if bartype:
b = musicexp.BarLine()
b.type = bartype
retval[2] = b
return list(retval.values())
class Partial(Measure_element):
def __init__(self, partial):
Measure_element.__init__(self)
self.partial = partial
class Stem(Music_xml_node):
stem_value_dict = {
'down': 'stemDown',
'up': 'stemUp',
'double': None, # TODO: Implement
'none': 'stemNeutral'
}
def to_stem_event(self):
values = []
value = self.stem_value_dict.get(self.get_text(), None)
stem_value = musicexp.StemEvent()
if value:
stem_value.value = value
values.append(stem_value)
return values
def to_stem_style_event(self):
styles = []
style_elm = musicexp.StemstyleEvent()
if hasattr(self, 'color'):
style_elm.color = utilities.hex_to_color(getattr(self, 'color'))
if style_elm.color is not None:
styles.append(style_elm)
return styles
class Notehead(Music_xml_node):
notehead_styles_dict = {
'slash': '\'slash',
'triangle': '\'triangle',
'diamond': '\'diamond',
'square': '\'la', # TODO: Proper squared note head
'cross': None, # TODO: + shaped note head
'x': '\'cross',
'circle-x': '\'xcircle',
'inverted triangle': None, # TODO: Implement
'arrow down': None, # TODO: Implement
'arrow up': None, # TODO: Implement
'slashed': None, # TODO: Implement
'back slashed': None, # TODO: Implement
'normal': None,
'cluster': None, # TODO: Implement
'none': '#f',
'do': '\'do',
're': '\'re',
'mi': '\'mi',
'fa': '\'fa',
'so': None,
'la': '\'la',
'ti': '\'ti',
}
def to_lily_object(self): # function changed: additionally processcolor attribute
styles = []
# Notehead style
key = self.get_text().strip()
style = self.notehead_styles_dict.get(key, None)
event = musicexp.NotestyleEvent()
if style:
event.style = style
if hasattr(self, 'filled'):
event.filled = (getattr(self, 'filled') == "yes")
if hasattr(self, 'color'):
event.color = utilities.hex_to_color(getattr(self, 'color'))
if event.style or (event.filled is not None) or (event.color is not None):
styles.append(event)
# parentheses
if hasattr(self, 'parentheses') and (self.parentheses == "yes"):
styles.append(musicexp.ParenthesizeEvent())
return styles
class Note(Measure_element):
def __init__(self):
Measure_element.__init__(self)
self.instrument_name = ''
self._after_grace = False
self._duration = 1
def is_grace(self):
return self.get_maybe_exist_named_child('grace')
def is_after_grace(self):
if not self.is_grace():
return False
gr = self.get_maybe_exist_typed_child(Grace)
return self._after_grace or hasattr(gr, 'steal-time-previous')
def get_duration_log(self):
ch = self.get_maybe_exist_named_child('type')
if ch:
log = ch.get_text().strip()
return utilities.musicxml_duration_to_log(log)
elif self.get_maybe_exist_named_child('grace'):
# FIXME: is it ok to default to eight note for grace notes?
return 3
else:
return None
def get_duration_info(self):
log = self.get_duration_log()
if log is not None:
dots = len(self.get_typed_children(Dot))
return(log, dots)
else:
return None
def get_factor(self):
return 1
def get_pitches(self):
return self.get_typed_children(get_class('pitch'))
def set_notehead_style(self, event):
noteheads = self.get_named_children('notehead')
for nh in noteheads:
styles = nh.to_lily_object()
for style in styles:
event.add_associated_event(style)
def set_stem_directions(self, event):
stems = self.get_named_children('stem')
for stem in stems:
values = stem.to_stem_event()
for v in values:
event.add_associated_event(v)
def set_stem_style(self, event):
stems = self.get_named_children('stem')
for stem in stems:
styles = stem.to_stem_style_event()
for style in styles:
event.add_associated_event(style)
def initialize_duration(self):
from musicxml2ly_conversion import rational_to_lily_duration
from musicexp import Duration
# if the note has no Type child, then that method returns None. In that case,
# use the <duration> tag instead. If that doesn't exist, either -> Error
dur = self.get_duration_info()
if dur:
d = Duration()
d.duration_log = dur[0]
d.dots = dur[1]
# Grace notes by specification have duration 0, so no time modification
# factor is possible. It even messes up the output with *0/1
if not self.get_maybe_exist_typed_child(Grace):
d.factor = self._duration / d.get_length()
return d
else:
if self._duration > 0:
return rational_to_lily_duration(self._duration)
else:
self.message(
_("Encountered note at %s without type and duration(=%s)")
% (mxl_note.start, mxl_note._duration))
return None
def initialize_pitched_event(self):
mxl_pitch = self.get_maybe_exist_typed_child(Pitch)
pitch = mxl_pitch.to_lily_object()
event = musicexp.NoteEvent()
event.pitch = pitch
acc = self.get_maybe_exist_named_child('accidental')
if acc:
# let's not force accs everywhere.
event.cautionary = acc.cautionary
# TODO: Handle editorial accidentals
# TODO: Handle the level-display setting for displaying brackets/parentheses
return event
def initialize_unpitched_event(self):
# Unpitched elements have display-step and can also have
# display-octave.
unpitched = self.get_maybe_exist_typed_child(Unpitched)
event = musicexp.NoteEvent()
event.pitch = unpitched.to_lily_object()
return event
def initialize_rest_event(self, convert_rest_positions=True):
# rests can have display-octave and display-step, which are
# treated like an ordinary note pitch
rest = self.get_maybe_exist_typed_child(Rest)
event = musicexp.RestEvent()
if convert_rest_positions:
pitch = rest.to_lily_object()
event.pitch = pitch
return event
def to_lily_object(self,
convert_stem_directions=True,
convert_rest_positions=True):
pitch = None
duration = None
event = None
if self.get_maybe_exist_typed_child(Pitch):
event = self.initialize_pitched_event()
elif self.get_maybe_exist_typed_child(Unpitched):
event = self.initialize_unpitched_event()
elif self.get_maybe_exist_typed_child(Rest):
event = self.initialize_rest_event(convert_rest_positions)
else:
self.message(_("cannot find suitable event"))
if event:
event.duration = self.initialize_duration()
self.set_notehead_style(event)
self.set_stem_style(event)
if convert_stem_directions:
self.set_stem_directions(event)
return event
class Part_list(Music_xml_node):
def __init__(self):
Music_xml_node.__init__(self)
self._id_instrument_name_dict = {}
def generate_id_instrument_dict(self):
# not empty to make sure this happens only once.
mapping = {1: 1}
for score_part in self.get_named_children('score-part'):
for instr in score_part.get_named_children('score-instrument'):
id = instr.id
name = instr.get_named_child("instrument-name")
mapping[id] = name.get_text()
self._id_instrument_name_dict = mapping
def get_instrument(self, id):
if not self._id_instrument_name_dict:
self.generate_id_instrument_dict()
instrument_name = self._id_instrument_name_dict.get(id)
if instrument_name:
return instrument_name
else:
ly.warning(_("Unable to find instrument for ID=%s\n") % id)
return "Grand Piano"
class Measure(Music_xml_node):
def __init__(self):
Music_xml_node.__init__(self)
self.partial = 0
def is_implicit(self):
return hasattr(self, 'implicit') and self.implicit == 'yes'
def get_notes(self):
return self.get_typed_children(get_class('note'))
class Syllabic(Music_xml_node):
def continued(self):
text = self.get_text()
return text == "begin" or text == "middle"
def begin(self):
return text == "begin"
def middle(self):
return text == "middle"
def end(self):
return text == "end"
class Lyric(Music_xml_node):
def get_number(self):
"""
Return the number attribute(if it exists) of the lyric element.
@rtype: number
@return: The value of the number attribute
"""
if hasattr(self, 'number'):
return int(self.number)
else:
return -1
class Sound(Music_xml_node):
def get_tempo(self):
"""
Return the tempo attribute(if it exists) of the sound element.
This attribute can be used by musicxml2ly for the midi output(see L{musicexp.Score}).
@rtype: string
@return: The value of the tempo attribute
"""
if hasattr(self, 'tempo'):
return self.tempo
else:
return None
class Notations(Music_xml_node):
def get_tie(self):
ts = self.get_named_children('tied')
starts = [t for t in ts if t.type == 'start']
if starts:
return starts[0]
else:
return None
def get_tuplets(self):
return self.get_typed_children(Tuplet)
class Time_modification(Music_xml_node):
def get_fraction(self):
b = self.get_maybe_exist_named_child('actual-notes')
a = self.get_maybe_exist_named_child('normal-notes')
return(int(a.get_text()), int(b.get_text()))
def get_normal_type(self):
tuplet_type = self.get_maybe_exist_named_child('normal-type')
if tuplet_type:
dots = self.get_named_children('normal-dot')
log = utilities.musicxml_duration_to_log(
tuplet_type.get_text().strip())
return(log, len(dots))
else:
return None
class Accidental(Music_xml_node):
def __init__(self):
Music_xml_node.__init__(self)
self.editorial = False
self.cautionary = False
class Tuplet(Music_xml_spanner):
def duration_info_from_tuplet_note(self, tuplet_note):
tuplet_type = tuplet_note.get_maybe_exist_named_child('tuplet-type')
if tuplet_type:
dots = tuplet_note.get_named_children('tuplet-dot')
log = utilities.musicxml_duration_to_log(
tuplet_type.get_text().strip())
return(log, len(dots))
else:
return None
# Return tuplet note type as(log, dots)
def get_normal_type(self):
tuplet = self.get_maybe_exist_named_child('tuplet-normal')
if tuplet:
return self.duration_info_from_tuplet_note(tuplet)
else:
return None
def get_actual_type(self):
tuplet = self.get_maybe_exist_named_child('tuplet-actual')
if tuplet:
return self.duration_info_from_tuplet_note(tuplet)
else:
return None
def get_tuplet_note_count(self, tuplet_note):
if tuplet_note:
tuplet_nr = tuplet_note.get_maybe_exist_named_child(
'tuplet-number')
if tuplet_nr:
return int(tuplet_nr.get_text())
return None
def get_normal_nr(self):
return self.get_tuplet_note_count(self.get_maybe_exist_named_child('tuplet-normal'))
def get_actual_nr(self):
return self.get_tuplet_note_count(self.get_maybe_exist_named_child('tuplet-actual'))
class Slur(Music_xml_spanner):
def get_type(self):
return self.type
class Tied(Music_xml_spanner):
def get_type(self):
return self.type
class Beam(Music_xml_spanner):
def get_type(self):
return self.get_text()
def is_primary(self):
if hasattr(self, 'number'):
return self.number == "1"
else:
return True
class Octave_shift(Music_xml_spanner):
# default is 8 for the octave-shift!
def get_size(self):
if hasattr(self, 'size'):
return int(self.size)
else:
return 8
# Rests in MusicXML are <note> blocks with a <rest> inside. This class is only
# for the inner <rest> element, not the whole rest block.
class Rest(Music_xml_node):
def __init__(self):
Music_xml_node.__init__(self)
self._is_whole_measure = False
def is_whole_measure(self):
return self._is_whole_measure
def get_step(self):
ch = self.get_maybe_exist_typed_child(get_class('display-step'))
if ch:
return ch.get_text().strip()
else:
return None
def get_octave(self):
ch = self.get_maybe_exist_typed_child(get_class('display-octave'))
if ch:
oct = ch.get_text().strip()
return int(oct)
else:
return None
def to_lily_object(self):
p = None
step = self.get_step()
if step:
p = musicexp.Pitch()
p.step = musicxml2ly_conversion.musicxml_step_to_lily(step)
octave = self.get_octave()
if octave and p:
p.octave = octave - 4
return p
class Bend(Music_xml_node):
def bend_alter(self):
alter = self.get_maybe_exist_named_child('bend-alter')
return utilities.interpret_alter_element(alter)
class ChordPitch(Music_xml_node):
def step_class_name(self):
return 'root-step'
def alter_class_name(self):
return 'root-alter'
def get_step(self):
ch = self.get_unique_typed_child(get_class(self.step_class_name()))
return ch.get_text().strip()
def get_alteration(self):
ch = self.get_maybe_exist_typed_child(
get_class(self.alter_class_name()))
return utilities.interpret_alter_element(ch)
class Bass(ChordPitch):
def step_class_name(self):
return 'bass-step'
def alter_class_name(self):
return 'bass-alter'
class ChordModification(Music_xml_node):
def get_type(self):
ch = self.get_maybe_exist_typed_child(get_class('degree-type'))
return {'add': 1, 'alter': 1, 'subtract': -1}.get(ch.get_text().strip(), 0)
def get_value(self):
ch = self.get_maybe_exist_typed_child(get_class('degree-value'))
value = 0
if ch:
value = int(ch.get_text().strip())
return value
def get_alter(self):
ch = self.get_maybe_exist_typed_child(get_class('degree-alter'))
return utilities.interpret_alter_element(ch)
class Frame(Music_xml_node):
def get_frets(self):
return self.get_named_child_value_number('frame-frets', 4)
def get_strings(self):
return self.get_named_child_value_number('frame-strings', 6)
def get_first_fret(self):
return self.get_named_child_value_number('first-fret', 1)
class Frame_Note(Music_xml_node):
def get_string(self):
return self.get_named_child_value_number('string', 1)
def get_fret(self):
return self.get_named_child_value_number('fret', 0)
def get_fingering(self):
return self.get_named_child_value_number('fingering', -1)
def get_barre(self):
n = self.get_maybe_exist_named_child('barre')
if n:
return getattr(n, 'type', '')
else:
return ''
class Musicxml_voice:
def __init__(self):
self._elements = []
self._staves = {}
self._start_staff = None
self._lyrics = []
self._has_lyrics = False
def add_element(self, e):
self._elements.append(e)
if(isinstance(e, Note)
and e.get_maybe_exist_typed_child(Staff)):
name = e.get_maybe_exist_typed_child(Staff).get_text()
if not self._start_staff and not e.get_maybe_exist_typed_child(Grace):
self._start_staff = name
self._staves[name] = True
lyrics = e.get_typed_children(Lyric)
if not self._has_lyrics:
self.has_lyrics = len(lyrics) > 0
for l in lyrics:
nr = l.get_number()
if nr > 0 and nr not in self._lyrics:
self._lyrics.append(nr)
def insert(self, idx, e):
self._elements.insert(idx, e)
def get_lyrics_numbers(self):
if(len(self._lyrics) == 0) and self._has_lyrics:
# only happens if none of the <lyric> tags has a number attribute
return [1]
else:
return self._lyrics
class Part(Music_xml_node):
def __init__(self):
Music_xml_node.__init__(self)
self._voices = {}
self._staff_attributes_dict = {}
def get_part_list(self):
n = self
while n and n.get_name() != 'score-partwise':
n = n._parent
return n.get_named_child('part-list')
def graces_to_aftergraces(self, pending_graces):
for gr in pending_graces:
gr._when = gr._prev_when
gr._measure_position = gr._prev_measure_position
gr._after_grace = True
def interpret(self):
"""Set durations and starting points."""
"""The starting point of the very first note is 0!"""
part_list = self.get_part_list()
now = Fraction(0)
factor = Fraction(1)
attributes_dict = {}
attributes_object = None
measures = self.get_typed_children(Measure)
last_moment = Fraction(-1)
last_measure_position = Fraction(-1)
measure_position = Fraction(0)
measure_start_moment = now
is_first_measure = True
previous_measure = None
# Graces at the end of a measure need to have their position set to the
# previous number!
pending_graces = []
for m in measures:
# implicit measures are used for artificial measures, e.g. when
# a repeat bar line splits a bar into two halves. In this case,
# don't reset the measure position to 0. They are also used for
# upbeats(initial value of 0 fits these, too).
# Also, don't reset the measure position at the end of the loop,
# but rather when starting the next measure(since only then do we
# know if the next measure is implicit and continues that measure)
if not m.is_implicit():
# Warn about possibly overfull measures and reset the position
if attributes_object and previous_measure and previous_measure.partial == 0:
length = attributes_object.get_measure_length()
new_now = measure_start_moment + length
if now != new_now:
problem = 'incomplete'
if now > new_now:
problem = 'overfull'
# only for verbose operation.
if problem != 'incomplete' and previous_measure:
previous_measure.message(
'%s measure? Expected: %s, Difference: %s' % (problem, now, new_now - now))
now = new_now
measure_start_moment = now
measure_position = Fraction(0)
voice_id = None
assign_to_next_voice = []
for n in m.get_all_children():
# assign a voice to all measure elements
if n.get_name() == 'backup':
voice_id = None
if isinstance(n, Measure_element):
if n.get_voice_id():
voice_id = n.get_voice_id()
for i in assign_to_next_voice:
i.voice_id = voice_id
assign_to_next_voice = []
else:
if voice_id:
n.voice_id = voice_id
else:
assign_to_next_voice.append(n)
# figured bass has a duration, but applies to the next note
# and should not change the current measure position!
if isinstance(n, FiguredBass):
n._divisions = factor.denominator
n._when = now
n._measure_position = measure_position
continue
if isinstance(n, Hash_text):
continue
dur = Fraction(0)
if n.__class__ == Attributes:
n.set_attributes_from_previous(attributes_dict)
n.read_self()
attributes_dict = n._dict.copy()
attributes_object = n
factor = Fraction(1,
int(attributes_dict.get('divisions').get_text()))
if n.get_maybe_exist_typed_child(Duration):
mxl_dur = n.get_maybe_exist_typed_child(Duration)
dur = mxl_dur.get_length() * factor
if n.get_name() == 'backup':
dur = -dur
# reset all graces before the backup to after-graces:
self.graces_to_aftergraces(pending_graces)
pending_graces = []
if n.get_maybe_exist_typed_child(Grace):
dur = Fraction(0)
rest = n.get_maybe_exist_typed_child(Rest)
if(rest
and attributes_object
and attributes_object.get_measure_length() == dur):
rest._is_whole_measure = True
if(dur > Fraction(0)
and n.get_maybe_exist_typed_child(Chord)):
now = last_moment
measure_position = last_measure_position
n._when = now
n._measure_position = measure_position
# For all grace notes, store the previous note, in case need
# to turn the grace note into an after-grace later on!
if isinstance(n, Note) and n.is_grace():
n._prev_when = last_moment
n._prev_measure_position = last_measure_position
# After-graces are placed at the same position as the previous note
if isinstance(n, Note) and n.is_after_grace():
# TODO: We should do the same for grace notes at the end of
# a measure with no following note!!!
n._when = last_moment
n._measure_position = last_measure_position
elif isinstance(n, Note) and n.is_grace():
pending_graces.append(n)
elif dur > Fraction(0):
pending_graces = []
n._duration = dur
if dur > Fraction(0):
last_moment = now
last_measure_position = measure_position
now += dur
measure_position += dur
elif dur < Fraction(0):
# backup element, reset measure position
now += dur
measure_position += dur
if measure_position < 0:
# backup went beyond the measure start => reset to 0
now -= measure_position
measure_position = 0
last_moment = now
last_measure_position = measure_position
if n._name == 'note':
instrument = n.get_maybe_exist_named_child('instrument')
if instrument:
n.instrument_name = part_list.get_instrument(
instrument.id)
# reset all graces at the end of the measure to after-graces:
self.graces_to_aftergraces(pending_graces)
pending_graces = []
# Incomplete first measures are not padded, but registered as partial
if is_first_measure:
is_first_measure = False
# upbeats are marked as implicit measures
if attributes_object and m.is_implicit():
length = attributes_object.get_measure_length()
measure_end = measure_start_moment + length
if measure_end != now:
m.partial = now
previous_measure = m
# modify attributes so that only those applying to the given staff remain
def extract_attributes_for_staff(part, attr, staff):
attributes = copy.copy(attr)
attributes._children = []
attributes._dict = attr._dict.copy()
attributes._original_tag = attr
# copy only the relevant children over for the given staff
if staff == "None":
staff = "1"
for c in attr._children:
if ((not hasattr(c, 'number') or c.number == staff) and
not isinstance(c, Hash_text)):
attributes._children.append(c)
if not attributes._children:
return None
else:
return attributes
def extract_voices(part):
# The last indentified voice
last_voice = None
voices = {}
measures = part.get_typed_children(Measure)
elements = []
for m in measures:
if m.partial > 0:
elements.append(Partial(m.partial))
elements.extend(m.get_all_children())
# make sure we know all voices already so that dynamics, clefs, etc.
# can be assigned to the correct voices
voice_to_staff_dict = {}
for n in elements:
voice_id = n.get_maybe_exist_named_child('voice')
vid = None
if voice_id:
vid = voice_id.get_text()
elif isinstance(n, Note):
# TODO: Check whether we shall really use "None" here, or
# rather use "1" as the default?
if n.get_maybe_exist_named_child('chord'):
vid = last_voice
else:
vid = "1"
if vid is not None:
last_voice = vid
staff_id = n.get_maybe_exist_named_child('staff')
sid = None
if staff_id:
sid = staff_id.get_text()
else:
# TODO: Check whether we shall really use "None" here, or
# rather use "1" as the default?
# If this is changed, need to change the corresponding
# check in extract_attributes_for_staff, too.
sid = "None"
if vid and vid not in voices:
voices[vid] = Musicxml_voice()
if vid and sid and not n.get_maybe_exist_typed_child(Grace):
if vid not in voice_to_staff_dict:
voice_to_staff_dict[vid] = sid
# invert the voice_to_staff_dict into a staff_to_voice_dict(since we
# need to assign staff-assigned objects like clefs, times, etc. to
# all the correct voices. This will never work entirely correct due
# to staff-switches, but that's the best we can do!
staff_to_voice_dict = {}
for(v, s) in list(voice_to_staff_dict.items()):
if s not in staff_to_voice_dict:
staff_to_voice_dict[s] = [v]
else:
staff_to_voice_dict[s].append(v)
start_attr = None
assign_to_next_note = []
id = None
for n in elements:
voice_id = n.get_maybe_exist_typed_child(get_class('voice'))
if voice_id:
id = voice_id.get_text()
else:
if n.get_maybe_exist_typed_child(get_class('chord')):
id = last_voice
else:
id = "1"
if id != "None":
last_voice = id
# We don't need backup/forward any more, since we have already
# assigned the correct onset times.
# TODO: Let Grouping through. Also: link, print, bokmark sound
if not(isinstance(n, Note) or isinstance(n, Attributes) or
isinstance(n, Direction) or isinstance(n, Partial) or
isinstance(n, Barline) or isinstance(n, Harmony) or
isinstance(n, FiguredBass) or isinstance(n, Print)):
continue
if isinstance(n, Attributes) and not start_attr:
start_attr = n
continue
if isinstance(n, Attributes):
# assign these only to the voices they really belong to!
for(s, vids) in list(staff_to_voice_dict.items()):
staff_attributes = part.extract_attributes_for_staff(n, s)
if staff_attributes:
for v in vids:
voices[v].add_element(staff_attributes)
continue
if isinstance(n, Partial) or isinstance(n, Barline) or isinstance(n, Print):
for v in list(voices.keys()):
voices[v].add_element(n)
continue
if isinstance(n, Direction):
if n.voice_id:
voices[n.voice_id].add_element(n)
else:
assign_to_next_note.append(n)
continue
if isinstance(n, Harmony) or isinstance(n, FiguredBass):
# store the harmony or figured bass element until we encounter
# the next note and assign it only to that one voice.
assign_to_next_note.append(n)
continue
if hasattr(n, 'print-object') and getattr(n, 'print-object') == "no":
# Skip this note.
pass
else:
for i in assign_to_next_note:
voices[id].add_element(i)
assign_to_next_note = []
voices[id].add_element(n)
# Assign all remaining elements from assign_to_next_note to the voice
# of the previous note:
for i in assign_to_next_note:
voices[id].add_element(i)
assign_to_next_note = []
if start_attr:
for(s, vids) in list(staff_to_voice_dict.items()):
staff_attributes = part.extract_attributes_for_staff(
start_attr, s)
staff_attributes.read_self()
part._staff_attributes_dict[s] = staff_attributes
for v in vids:
voices[v].insert(0, staff_attributes)
voices[v]._elements[0].read_self()
part._voices = voices
def get_voices(self):
return self._voices
def get_staff_attributes(self):
return self._staff_attributes_dict
class BarStyle(Music_xml_node):
pass
class BeatType(Music_xml_node):
pass
class BeatUnit(Music_xml_node):
pass
class BeatUnitDot(Music_xml_node):
pass
class Beats(Music_xml_node):
pass
class Bracket(Music_xml_spanner):
pass
class Chord(Music_xml_node):
pass
class Dashes(Music_xml_spanner):
pass
class DirType(Music_xml_node):
pass
class Direction(Measure_element):
pass
class Dot(Music_xml_node):
pass
class Elision(Music_xml_node):
pass
class Extend(Music_xml_node):
pass
class FiguredBass(Music_xml_node):
pass
class Glissando(Music_xml_spanner):
pass
class Grace(Music_xml_node):
pass
class Harmony(Music_xml_node):
pass
class Hash_comment(Music_xml_node):
pass
class KeyAlter(Music_xml_node):
pass
class Direction (Measure_element):
pass
class KeyOctave(Music_xml_node):
pass
class KeyStep(Music_xml_node):
pass
class Part_group(Music_xml_node):
pass
class Pedal(Music_xml_spanner):
pass
class PerMinute(Music_xml_node):
pass
class Print(Music_xml_node):
pass
class Root(ChordPitch):
pass
class Score_part(Music_xml_node):
pass
class Slide(Music_xml_spanner):
pass
class Staff(Music_xml_node):
pass
class Text(Music_xml_node):
pass
class Type(Music_xml_node):
pass
class Wavy_line(Music_xml_spanner):
pass
class Wedge(Music_xml_spanner):
pass
class Words(Music_xml_node):
pass
# need this, not all classes are instantiated
# for every input file. Only add those classes, that are either directly
# used by class name or extend Music_xml_node in some way!
class_dict = {
'#comment': Hash_comment,
'#text': Hash_text,
'accidental': Accidental,
'attributes': Attributes,
'barline': Barline,
'bar-style': BarStyle,
'bass': Bass,
'beam': Beam,
'beats': Beats,
'beat-type': BeatType,
'beat-unit': BeatUnit,
'beat-unit-dot': BeatUnitDot,
'bend': Bend,
'bracket': Bracket,
'chord': Chord,
'credit': Credit,
'dashes': Dashes,
'degree': ChordModification,
'dot': Dot,
'direction': Direction,
'direction-type': DirType,
'duration': Duration,
'elision': Elision,
'extend': Extend,
'frame': Frame,
'frame-note': Frame_Note,
'figured-bass': FiguredBass,
'glissando': Glissando,
'grace': Grace,
'harmony': Harmony,
'identification': Identification,
'key-alter': KeyAlter,
'key-octave': KeyOctave,
'key-step': KeyStep,
'lyric': Lyric,
'measure': Measure,
'notations': Notations,
'note': Note,
'notehead': Notehead,
'octave-shift': Octave_shift,
'part': Part,
'part-group': Part_group,
'part-list': Part_list,
'pedal': Pedal,
'per-minute': PerMinute,
'pitch': Pitch,
'print': Print,
'rest': Rest,
'root': Root,
'score-part': Score_part,
'slide': Slide,
'slur': Slur,
'sound': Sound,
'staff': Staff,
'stem': Stem,
'syllabic': Syllabic,
'text': Text,
'time-modification': Time_modification,
'tied': Tied,
'tuplet': Tuplet,
'type': Type,
'unpitched': Unpitched,
'wavy-line': Wavy_line,
'wedge': Wedge,
'words': Words,
'work': Work,
}
def name2class_name(name):
name = name.replace('-', '_')
name = name.replace('#', 'hash_')
name = name[0].upper() + name[1:].lower()
return str(name)
def get_class(name):
classname = class_dict.get(name)
if classname:
return classname
else:
class_name = name2class_name(name)
klass = type(class_name, (Music_xml_node,), {})
class_dict[name] = klass
return klass
def lxml_demarshal_node(node):
name = node.tag
# Ignore comment nodes, which are also returned by the etree parser!
if name is None or node.__class__.__name__ == "_Comment":
return None
klass = get_class(name)
py_node = klass()
py_node._original = node
py_node._name = name
py_node._data = node.text
py_node._children = [lxml_demarshal_node(cn) for cn in node.getchildren()]
py_node._children = [x for x in py_node._children if x]
for c in py_node._children:
c._parent = py_node
for(k, v) in list(node.items()):
py_node.__dict__[k] = v
py_node._attribute_dict[k] = v
return py_node
def minidom_demarshal_node(node):
name = node.nodeName
klass = get_class(name)
py_node = klass()
py_node._name = name
py_node._children = [minidom_demarshal_node(cn) for cn in node.childNodes]
for c in py_node._children:
c._parent = py_node
if node.attributes:
for(nm, value) in list(node.attributes.items()):
py_node.__dict__[nm] = value
py_node._attribute_dict[nm] = value
py_node._data = None
if node.nodeType == node.TEXT_NODE and node.data:
py_node._data = node.data
py_node._original = node
return py_node
if __name__ == '__main__':
import lxml.etree
tree = lxml.etree.parse('beethoven.xml')
mxl_tree = lxml_demarshal_node(tree.getroot())
ks = sorted(class_dict.keys())
print('\n'.join(ks))
|