/usr/lib/python2.7/dist-packages/reportlab/lib/utils.py is in python-reportlab 3.3.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | #Copyright ReportLab Europe Ltd. 2000-2016
#see license.txt for license details
# $URI:$
__version__='3.3.0'
__doc__='''Gazillions of miscellaneous internal utility functions'''
import os, sys, imp, time, types
from base64 import decodestring as base64_decodestring, encodestring as base64_encodestring
from reportlab import isPy3
from reportlab.lib.logger import warnOnce
from reportlab.lib.rltempfile import get_rl_tempfile, get_rl_tempdir, _rl_getuid
try:
import cPickle as pickle
except ImportError:
import pickle
try:
from hashlib import md5
except ImportError:
import md5
try:
import platform
isPyPy = platform.python_implementation()=='PyPy'
except:
isPyPy = False
def isFunction(v):
return type(v) == type(isFunction)
class c:
def m(self): pass
def isMethod(v,mt=type(c.m)):
return type(v) == mt
del c
def isModule(v):
return type(v) == type(sys)
def isSeq(v,_st=(tuple,list)):
return isinstance(v,_st)
def isNative(v):
return isinstance(v, str)
#isStr is supposed to be for arbitrary stringType
#isBytes for bytes strings only
#isUnicode for proper unicode
if isPy3:
_rl_NoneType=type(None)
bytesT = bytes
unicodeT = str
strTypes = (str,bytes)
def _digester(s):
return md5(s if isBytes(s) else s.encode('utf8')).hexdigest()
def asBytes(v,enc='utf8'):
return v if isinstance(v,bytes) else v.encode(enc)
def asUnicode(v,enc='utf8'):
return v if isinstance(v,str) else v.decode(enc)
def asUnicodeEx(v,enc='utf8'):
return v if isinstance(v,str) else v.decode(enc) if isinstance(v,bytes) else str(v)
def asNative(v,enc='utf8'):
return asUnicode(v,enc=enc)
uniChr = chr
def int2Byte(i):
return bytes([i])
def isStr(v):
return isinstance(v, (str,bytes))
def isBytes(v):
return isinstance(v, bytes)
def isUnicode(v):
return isinstance(v, str)
def isClass(v):
return isinstance(v, type)
def isNonPrimitiveInstance(x):
return not isinstance(x,(float,int,type,tuple,list,dict,str,bytes,complex,bool,slice,_rl_NoneType,
types.FunctionType,types.LambdaType,types.CodeType,
types.MappingProxyType,types.SimpleNamespace,
types.GeneratorType,types.MethodType,types.BuiltinFunctionType,
types.BuiltinMethodType,types.ModuleType,types.TracebackType,
types.FrameType,types.GetSetDescriptorType,types.MemberDescriptorType))
def instantiated(v):
return not isinstance(v,type)
from string import ascii_letters, ascii_uppercase, ascii_lowercase
from io import BytesIO, StringIO
def getBytesIO(buf=None):
'''unified StringIO instance interface'''
if buf:
return BytesIO(buf)
return BytesIO()
_bytesIOType = BytesIO
def getStringIO(buf=None):
'''unified StringIO instance interface'''
if buf:
return StringIO(buf)
return StringIO()
def bytestr(x,enc='utf8'):
if isinstance(x,str):
return x.encode(enc)
elif isinstance(x,bytes):
return x
else:
return str(x).encode(enc)
def encode_label(args):
return base64_encodestring(pickle.dumps(args)).strip().decode('latin1')
def decode_label(label):
return pickle.loads(base64_decodestring(label.encode('latin1')))
def rawUnicode(s):
'''converts first 256 unicodes 1-1'''
return s.decode('latin1') if not isinstance(s,str) else s
def rawBytes(s):
'''converts first 256 unicodes 1-1'''
return s.encode('latin1') if isinstance(s,str) else s
import builtins
rl_exec = getattr(builtins,'exec')
del builtins
def char2int(s):
return s if isinstance(s,int) else ord(s if isinstance(s,str) else s.decode('latin1'))
def rl_reraise(t, v, b=None):
if v.__traceback__ is not b:
raise v.with_traceback(b)
raise v
def rl_add_builtins(**kwd):
import builtins
for k,v in kwd.items():
setattr(builtins,k,v)
else:
bytesT = str
unicodeT = unicode
strTypes = basestring
if sys.hexversion >= 0x02000000:
def _digester(s):
return md5(s).hexdigest()
else:
# hexdigest not available in 1.5
def _digester(s):
return join(["%02x" % ord(x) for x in md5(s).digest()], '')
def asBytes(v,enc='utf8'):
return v if isinstance(v,str) else v.encode(enc)
def asNative(v,enc='utf8'):
return asBytes(v,enc=enc)
def uniChr(v):
return unichr(v)
def isStr(v):
return isinstance(v, basestring)
def isBytes(v):
return isinstance(v, str)
def isUnicode(v):
return isinstance(v, unicode)
def asUnicode(v,enc='utf8'):
return v if isinstance(v,unicode) else v.decode(enc)
def asUnicodeEx(v,enc='utf8'):
return v if isinstance(v,unicode) else v.decode(enc) if isinstance(v,str) else unicode(v)
def isClass(v):
return isinstance(v,(types.ClassType,type))
def isNonPrimitiveInstance(x):
return isinstance(x,types.InstanceType) or not isinstance(x,(float,int,long,type,tuple,list,dict,bool,unicode,str,buffer,complex,slice,types.NoneType,
types.FunctionType,types.LambdaType,types.CodeType,types.GeneratorType,
types.ClassType,types.UnboundMethodType,types.MethodType,types.BuiltinFunctionType,
types.BuiltinMethodType,types.ModuleType,types.FileType,types.XRangeType,
types.TracebackType,types.FrameType,types.EllipsisType,types.DictProxyType,
types.NotImplementedType,types.GetSetDescriptorType,types.MemberDescriptorType
))
def instantiated(v):
return not isinstance(v,type) and hasattr(v,'__class__')
int2Byte = chr
from StringIO import StringIO
def getBytesIO(buf=None):
'''unified StringIO instance interface'''
if buf:
return StringIO(buf)
return StringIO()
getStringIO = getBytesIO
_bytesIOType = StringIO
def bytestr(x,enc='utf8'):
if isinstance(x,unicode):
return x.encode(enc)
elif isinstance(x,str):
return x
else:
return str(x).encode(enc)
from string import letters as ascii_letters, uppercase as ascii_uppercase, lowercase as ascii_lowercase
def encode_label(args):
return base64_encodestring(pickle.dumps(args)).strip()
def decode_label(label):
return pickle.loads(base64_decodestring(label))
def rawUnicode(s):
'''converts first 256 unicodes 1-1'''
return s.decode('latin1') if not isinstance(s,unicode) else s
def rawBytes(s):
'''converts first 256 unicodes 1-1'''
return s.encode('latin1') if isinstance(s,unicode) else s
def rl_exec(obj, G=None, L=None):
if G is None:
frame = sys._getframe(1)
G = frame.f_globals
if L is None:
L = frame.f_locals
del frame
elif L is None:
L = G
exec("""exec obj in G, L""")
rl_exec("""def rl_reraise(t, v, b=None):\n\traise t, v, b\n""")
char2int = ord
def rl_add_builtins(**kwd):
import __builtin__
for k,v in kwd.items():
setattr(__builtin__,k,v)
def zipImported(ldr=None):
try:
if not ldr:
ldr = sys._getframe(1).f_globals['__loader__']
from zipimport import zipimporter
return ldr if isinstance(ldr,zipimporter) else None
except:
return None
def _findFiles(dirList,ext='.ttf'):
from os.path import isfile, isdir, join as path_join
from os import listdir
ext = ext.lower()
R = []
A = R.append
for D in dirList:
if not isdir(D): continue
for fn in listdir(D):
fn = path_join(D,fn)
if isfile(fn) and (not ext or fn.lower().endswith(ext)): A(fn)
return R
class CIDict(dict):
def __init__(self,*args,**kwds):
for a in args: self.update(a)
self.update(kwds)
def update(self,D):
for k,v in D.items(): self[k] = v
def __setitem__(self,k,v):
try:
k = k.lower()
except:
pass
dict.__setitem__(self,k,v)
def __getitem__(self,k):
try:
k = k.lower()
except:
pass
return dict.__getitem__(self,k)
def __delitem__(self,k):
try:
k = k.lower()
except:
pass
return dict.__delitem__(self,k)
def get(self,k,dv=None):
try:
return self[k]
except KeyError:
return dv
def __contains__(self,k):
try:
self[k]
return True
except:
return False
def pop(self,k,*a):
try:
k = k.lower()
except:
pass
return dict.pop(*((self,k)+a))
def setdefault(self,k,*a):
try:
k = k.lower()
except:
pass
return dict.setdefault(*((self,k)+a))
if os.name == 'mac':
#with the Mac, we need to tag the file in a special
#way so the system knows it is a PDF file.
#This supplied by Joe Strout
import macfs, macostools
_KNOWN_MAC_EXT = {
'BMP' : ('ogle','BMP '),
'EPS' : ('ogle','EPSF'),
'EPSF': ('ogle','EPSF'),
'GIF' : ('ogle','GIFf'),
'JPG' : ('ogle','JPEG'),
'JPEG': ('ogle','JPEG'),
'PCT' : ('ttxt','PICT'),
'PICT': ('ttxt','PICT'),
'PNG' : ('ogle','PNGf'),
'PPM' : ('ogle','.PPM'),
'TIF' : ('ogle','TIFF'),
'TIFF': ('ogle','TIFF'),
'PDF' : ('CARO','PDF '),
'HTML': ('MSIE','TEXT'),
}
def markfilename(filename,creatorcode=None,filetype=None,ext='PDF'):
try:
if creatorcode is None or filetype is None and ext is not None:
try:
creatorcode, filetype = _KNOWN_MAC_EXT[ext.upper()]
except:
return
macfs.FSSpec(filename).SetCreatorType(creatorcode,filetype)
macostools.touched(filename)
except:
pass
else:
def markfilename(filename,creatorcode=None,filetype=None):
pass
import reportlab
__RL_DIR=os.path.dirname(reportlab.__file__) #possibly relative
_RL_DIR=os.path.isabs(__RL_DIR) and __RL_DIR or os.path.abspath(__RL_DIR)
del reportlab
#Attempt to detect if this copy of reportlab is running in a
#file system (as opposed to mostly running in a zip or McMillan
#archive or Jar file). This is used by test cases, so that
#we can write test cases that don't get activated in a compiled
try:
__file__
except:
__file__ = sys.argv[0]
import glob, fnmatch
try:
_isFSD = not __loader__
_archive = os.path.normcase(os.path.normpath(__loader__.archive))
_archivepfx = _archive + os.sep
_archivedir = os.path.dirname(_archive)
_archivedirpfx = _archivedir + os.sep
_archivepfxlen = len(_archivepfx)
_archivedirpfxlen = len(_archivedirpfx)
def __startswith_rl(fn,
_archivepfx=_archivepfx,
_archivedirpfx=_archivedirpfx,
_archive=_archive,
_archivedir=_archivedir,
os_path_normpath=os.path.normpath,
os_path_normcase=os.path.normcase,
os_getcwd=os.getcwd,
os_sep=os.sep,
os_sep_len = len(os.sep)):
'''if the name starts with a known prefix strip it off'''
fn = os_path_normpath(fn.replace('/',os_sep))
nfn = os_path_normcase(fn)
if nfn in (_archivedir,_archive): return 1,''
if nfn.startswith(_archivepfx): return 1,fn[_archivepfxlen:]
if nfn.startswith(_archivedirpfx): return 1,fn[_archivedirpfxlen:]
cwd = os_path_normcase(os_getcwd())
n = len(cwd)
if nfn.startswith(cwd):
if fn[n:].startswith(os_sep): return 1, fn[n+os_sep_len:]
if n==len(fn): return 1,''
return not os.path.isabs(fn),fn
def _startswith_rl(fn):
return __startswith_rl(fn)[1]
def rl_glob(pattern,glob=glob.glob,fnmatch=fnmatch.fnmatch, _RL_DIR=_RL_DIR,pjoin=os.path.join):
c, pfn = __startswith_rl(pattern)
r = glob(pfn)
if c or r==[]:
r += list(map(lambda x,D=_archivepfx,pjoin=pjoin: pjoin(_archivepfx,x),list(filter(lambda x,pfn=pfn,fnmatch=fnmatch: fnmatch(x,pfn),list(__loader__._files.keys())))))
return r
except:
_isFSD = os.path.isfile(__file__) #slight risk of wrong path
__loader__ = None
def _startswith_rl(fn):
return fn
def rl_glob(pattern,glob=glob.glob):
return glob(pattern)
del glob, fnmatch
_isFSSD = _isFSD and os.path.isfile(os.path.splitext(__file__)[0] +'.py')
def isFileSystemDistro():
'''return truth if a file system distribution'''
return _isFSD
def isCompactDistro():
'''return truth if not a file system distribution'''
return not _isFSD
def isSourceDistro():
'''return truth if a source file system distribution'''
return _isFSSD
def recursiveImport(modulename, baseDir=None, noCWD=0, debug=0):
"""Dynamically imports possible packagized module, or raises ImportError"""
normalize = lambda x: os.path.normcase(os.path.abspath(os.path.normpath(x)))
path = [normalize(p) for p in sys.path]
if baseDir:
if not isSeq(baseDir):
tp = [baseDir]
else:
tp = filter(None,list(baseDir))
for p in tp:
p = normalize(p)
if p not in path: path.insert(0,p)
if noCWD:
for p in ('','.',normalize('.')):
while p in path:
if debug: print('removed "%s" from path' % p)
path.remove(p)
elif '.' not in path:
path.insert(0,'.')
if debug:
import pprint
pp = pprint.pprint
print('path=')
pp(path)
#make import errors a bit more informative
opath = sys.path
try:
try:
sys.path = path
NS = {}
rl_exec('import %s as m' % modulename,NS)
return NS['m']
except ImportError:
sys.path = opath
msg = "Could not import '%s'" % modulename
if baseDir:
msg = msg + " under %s" % baseDir
annotateException(msg)
except:
e = sys.exc_info()
msg = "Exception raised while importing '%s': %s" % (modulename, e[1])
annotateException(msg)
finally:
sys.path = opath
def recursiveGetAttr(obj, name):
"Can call down into e.g. object1.object2[4].attr"
return eval(name, obj.__dict__)
def recursiveSetAttr(obj, name, value):
"Can call down into e.g. object1.object2[4].attr = value"
#get the thing above last.
tokens = name.split('.')
if len(tokens) == 1:
setattr(obj, name, value)
else:
most = '.'.join(tokens[:-1])
last = tokens[-1]
parent = recursiveGetAttr(obj, most)
setattr(parent, last, value)
def import_zlib():
try:
import zlib
except ImportError:
zlib = None
from reportlab.rl_config import ZLIB_WARNINGS
if ZLIB_WARNINGS: warnOnce('zlib not available')
return zlib
# Image Capability Detection. Set a flag haveImages
# to tell us if either PIL or Java imaging libraries present.
# define PIL_Image as either None, or an alias for the PIL.Image
# module, as there are 2 ways to import it
if sys.platform[0:4] == 'java':
try:
import javax.imageio
import java.awt.image
haveImages = 1
except:
haveImages = 0
else:
try:
from PIL import Image
except ImportError:
try:
import Image
except ImportError:
Image = None
haveImages = Image is not None
class ArgvDictValue:
'''A type to allow clients of getArgvDict to specify a conversion function'''
def __init__(self,value,func):
self.value = value
self.func = func
def getArgvDict(**kw):
''' Builds a dictionary from its keyword arguments with overrides from sys.argv.
Attempts to be smart about conversions, but the value can be an instance
of ArgDictValue to allow specifying a conversion function.
'''
def handleValue(v,av,func):
if func:
v = func(av)
else:
if isStr(v):
v = av
elif isinstance(v,float):
v = float(av)
elif isinstance(v,int):
v = int(av)
elif isinstance(v,list):
v = list(eval(av))
elif isinstance(v,tuple):
v = tuple(eval(av))
else:
raise TypeError("Can't convert string %r to %s" % (av,type(v)))
return v
A = sys.argv[1:]
R = {}
for k, v in kw.items():
if isinstance(v,ArgvDictValue):
v, func = v.value, v.func
else:
func = None
handled = 0
ke = k+'='
for a in A:
if a.find(ke)==0:
av = a[len(ke):]
A.remove(a)
R[k] = handleValue(v,av,func)
handled = 1
break
if not handled: R[k] = handleValue(v,v,func)
return R
def getHyphenater(hDict=None):
try:
from reportlab.lib.pyHnj import Hyphen
if hDict is None: hDict=os.path.join(os.path.dirname(__file__),'hyphen.mashed')
return Hyphen(hDict)
except ImportError as errMsg:
if str(errMsg)!='No module named pyHnj': raise
return None
def _className(self):
'''Return a shortened class name'''
try:
name = self.__class__.__name__
i=name.rfind('.')
if i>=0: return name[i+1:]
return name
except AttributeError:
return str(self)
def open_for_read_by_name(name,mode='b'):
if 'r' not in mode: mode = 'r'+mode
try:
return open(name,mode)
except IOError:
if _isFSD or __loader__ is None: raise
#we have a __loader__, perhaps the filename starts with
#the dirname(reportlab.__file__) or is relative
name = _startswith_rl(name)
s = __loader__.get_data(name)
if 'b' not in mode and os.linesep!='\n': s = s.replace(os.linesep,'\n')
return getBytesIO(s)
if not isPy3:
import urllib2, urllib
urlopen=urllib2.urlopen
def datareader(url,opener=urllib.URLopener().open):
return opener(url).read()
del urllib, urllib2
else:
from urllib.request import urlopen
from urllib.parse import unquote
import base64
#copied here from urllib.URLopener.open_data because
# 1) they want to remove it
# 2) the existing one is borken
def datareader(url, unquote=unquote, decodebytes=base64.decodebytes):
"""Use "data" URL."""
# ignore POSTed data
#
# syntax of data URLs:
# dataurl := "data:" [ mediatype ] [ ";base64" ] "," data
# mediatype := [ type "/" subtype ] *( ";" parameter )
# data := *urlchar
# parameter := attribute "=" value
try:
typ, data = url.split(',', 1)
except ValueError:
raise IOError('data error', 'bad data URL')
if not typ:
typ = 'text/plain;charset=US-ASCII'
semi = typ.rfind(';')
if semi >= 0 and '=' not in typ[semi:]:
encoding = typ[semi+1:]
typ = typ[:semi]
else:
encoding = ''
if encoding == 'base64':
# XXX is this encoding/decoding ok?
data = decodebytes(data.encode('ascii'))
else:
data = unquote(data).encode('latin-1')
return data
del unquote, base64
def open_for_read(name,mode='b', urlopen=urlopen, datareader=datareader):
'''attempt to open a file or URL for reading'''
if hasattr(name,'read'): return name
try:
return open_for_read_by_name(name,mode)
except:
try:
return getBytesIO(datareader(name) if name.startswith('data:') else urlopen(name).read())
except:
raise IOError('Cannot open resource "%s"' % name)
del urlopen, datareader
def open_and_read(name,mode='b'):
f = open_for_read(name,mode)
if name is not f and hasattr(f,'__exit__'):
with f:
return f.read()
else:
return f.read()
def open_and_readlines(name,mode='t'):
return open_and_read(name,mode).split('\n')
def rl_isfile(fn,os_path_isfile=os.path.isfile):
if hasattr(fn,'read'): return True
if os_path_isfile(fn): return True
if _isFSD or __loader__ is None: return False
fn = _startswith_rl(fn)
return fn in list(__loader__._files.keys())
def rl_isdir(pn,os_path_isdir=os.path.isdir,os_path_normpath=os.path.normpath):
if os_path_isdir(pn): return True
if _isFSD or __loader__ is None: return False
pn = _startswith_rl(os_path_normpath(pn))
if not pn.endswith(os.sep): pn += os.sep
return len(list(filter(lambda x,pn=pn: x.startswith(pn),list(__loader__._files.keys()))))>0
def rl_listdir(pn,os_path_isdir=os.path.isdir,os_path_normpath=os.path.normpath,os_listdir=os.listdir):
if os_path_isdir(pn) or _isFSD or __loader__ is None: return os_listdir(pn)
pn = _startswith_rl(os_path_normpath(pn))
if not pn.endswith(os.sep): pn += os.sep
return [x[len(pn):] for x in __loader__._files.keys() if x.startswith(pn)]
def rl_getmtime(pn,os_path_isfile=os.path.isfile,os_path_normpath=os.path.normpath,os_path_getmtime=os.path.getmtime,time_mktime=time.mktime):
if os_path_isfile(pn) or _isFSD or __loader__ is None: return os_path_getmtime(pn)
p = _startswith_rl(os_path_normpath(pn))
try:
e = __loader__._files[p]
except KeyError:
return os_path_getmtime(pn)
s = e[5]
d = e[6]
return time_mktime((((d>>9)&0x7f)+1980,(d>>5)&0xf,d&0x1f,(s>>11)&0x1f,(s>>5)&0x3f,(s&0x1f)<<1,0,0,0))
def rl_get_module(name,dir):
if name in sys.modules:
om = sys.modules[name]
del sys.modules[name]
else:
om = None
try:
f = None
try:
f, p, desc= imp.find_module(name,[dir])
return imp.load_module(name,f,p,desc)
except:
if isCompactDistro():
#attempt a load from inside the zip archive
import zipimport
dir = _startswith_rl(dir)
dir = (dir=='.' or not dir) and _archive or os.path.join(_archive,dir.replace('/',os.sep))
zi = zipimport.zipimporter(dir)
return zi.load_module(name)
raise ImportError('%s[%s]' % (name,dir))
finally:
if om: sys.modules[name] = om
del om
if f: f.close()
def _isPILImage(im):
try:
return isinstance(im,Image.Image)
except AttributeError:
return 0
class ImageReader(object):
"Wraps up either PIL or Java to get data from bitmaps"
_cache={}
def __init__(self, fileName,ident=None):
if isinstance(fileName,ImageReader):
self.__dict__ = fileName.__dict__ #borgize
return
self._ident = ident
#start wih lots of null private fields, to be populated by
#the relevant engine.
self.fileName = fileName
self._image = None
self._width = None
self._height = None
self._transparent = None
self._data = None
if _isPILImage(fileName):
self._image = fileName
self.fp = getattr(fileName,'fp',None)
try:
self.fileName = self._image.fileName
except AttributeError:
self.fileName = 'PILIMAGE_%d' % id(self)
else:
try:
from reportlab.rl_config import imageReaderFlags
self.fp = open_for_read(fileName,'b')
if isinstance(self.fp,_bytesIOType): imageReaderFlags=0 #avoid messing with already internal files
if imageReaderFlags>0: #interning
data = self.fp.read()
if imageReaderFlags&2: #autoclose
try:
self.fp.close()
except:
pass
if imageReaderFlags&4: #cache the data
if not self._cache:
from rl_config import register_reset
register_reset(self._cache.clear)
data=self._cache.setdefault(_digester(data),data)
self.fp=getBytesIO(data)
elif imageReaderFlags==-1 and isinstance(fileName,str):
#try Ralf Schmitt's re-opening technique of avoiding too many open files
self.fp.close()
del self.fp #will become a property in the next statement
self.__class__=LazyImageReader
if haveImages:
#detect which library we are using and open the image
if not self._image:
self._image = self._read_image(self.fp)
if getattr(self._image,'format',None)=='JPEG': self.jpeg_fh = self._jpeg_fh
else:
from reportlab.pdfbase.pdfutils import readJPEGInfo
try:
self._width,self._height,c=readJPEGInfo(self.fp)
except:
annotateException('\nImaging Library not available, unable to import bitmaps only jpegs\nfileName=%r identity=%s'%(fileName,self.identity()))
self.jpeg_fh = self._jpeg_fh
self._data = self.fp.read()
self._dataA=None
self.fp.seek(0)
except:
annotateException('\nfileName=%r identity=%s'%(fileName,self.identity()))
def identity(self):
'''try to return information that will identify the instance'''
fn = self.fileName
if not isStr(fn):
fn = getattr(getattr(self,'fp',None),'name',None)
ident = self._ident
return '[%s@%s%s%s]' % (self.__class__.__name__,hex(id(self)),ident and (' ident=%r' % ident) or '',fn and (' filename=%r' % fn) or '')
def _read_image(self,fp):
if sys.platform[0:4] == 'java':
from javax.imageio import ImageIO
return ImageIO.read(fp)
else:
return Image.open(fp)
def _jpeg_fh(self):
fp = self.fp
fp.seek(0)
return fp
def jpeg_fh(self):
return None
def getSize(self):
if (self._width is None or self._height is None):
if sys.platform[0:4] == 'java':
self._width = self._image.getWidth()
self._height = self._image.getHeight()
else:
self._width, self._height = self._image.size
return (self._width, self._height)
def getRGBData(self):
"Return byte array of RGB data as string"
try:
if self._data is None:
self._dataA = None
if sys.platform[0:4] == 'java':
import jarray
from java.awt.image import PixelGrabber
width, height = self.getSize()
buffer = jarray.zeros(width*height, 'i')
pg = PixelGrabber(self._image, 0,0,width,height,buffer,0,width)
pg.grabPixels()
# there must be a way to do this with a cast not a byte-level loop,
# I just haven't found it yet...
pixels = []
a = pixels.append
for i in range(len(buffer)):
rgb = buffer[i]
a(chr((rgb>>16)&0xff))
a(chr((rgb>>8)&0xff))
a(chr(rgb&0xff))
self._data = ''.join(pixels)
self.mode = 'RGB'
else:
im = self._image
mode = self.mode = im.mode
if mode=='RGBA':
if Image.VERSION.startswith('1.1.7'): im.load()
self._dataA = ImageReader(im.split()[3])
im = im.convert('RGB')
self.mode = 'RGB'
elif mode not in ('L','RGB','CMYK'):
if im.format=='PNG' and im.mode=='P' and 'transparency' in im.info:
im = im.convert('RGBA')
self._dataA = ImageReader(im.split()[3])
im = im.convert('RGB')
else:
im = im.convert('RGB')
self.mode = 'RGB'
self._data = (im.tobytes if hasattr(im, 'tobytes') else im.tostring)() #make pillow and PIL both happy, for now
return self._data
except:
annotateException('\nidentity=%s'%self.identity())
def getImageData(self):
width, height = self.getSize()
return width, height, self.getRGBData()
def getTransparent(self):
if sys.platform[0:4] == 'java':
return None
else:
if "transparency" in self._image.info:
transparency = self._image.info["transparency"] * 3
palette = self._image.palette
try:
palette = palette.palette
except:
try:
palette = palette.data
except:
return None
if isPy3:
return palette[transparency:transparency+3]
else:
return [ord(c) for c in palette[transparency:transparency+3]]
else:
return None
class LazyImageReader(ImageReader):
def fp(self):
return open_for_read(self.fileName, 'b')
fp=property(fp)
def _image(self):
return self._read_image(self.fp)
_image=property(_image)
def getImageData(imageFileName):
"Get width, height and RGB pixels from image file. Wraps Java/PIL"
try:
return imageFileName.getImageData()
except AttributeError:
return ImageReader(imageFileName).getImageData()
class DebugMemo:
'''Intended as a simple report back encapsulator
Typical usages:
1. To record error data::
dbg = DebugMemo(fn='dbgmemo.dbg',myVar=value)
dbg.add(anotherPayload='aaaa',andagain='bbb')
dbg.dump()
2. To show the recorded info::
dbg = DebugMemo(fn='dbgmemo.dbg',mode='r')
dbg.load()
dbg.show()
3. To re-use recorded information::
dbg = DebugMemo(fn='dbgmemo.dbg',mode='r')
dbg.load()
myTestFunc(dbg.payload('myVar'),dbg.payload('andagain'))
In addition to the payload variables the dump records many useful bits
of information which are also printed in the show() method.
'''
def __init__(self,fn='rl_dbgmemo.dbg',mode='w',getScript=1,modules=(),capture_traceback=1, stdout=None, **kw):
import time, socket
self.fn = fn
if not stdout:
self.stdout = sys.stdout
else:
if hasattr(stdout,'write'):
self.stdout = stdout
else:
self.stdout = open(stdout,'w')
if mode!='w': return
self.store = store = {}
if capture_traceback and sys.exc_info() != (None,None,None):
import traceback
s = getBytesIO()
traceback.print_exc(None,s)
store['__traceback'] = s.getvalue()
cwd=os.getcwd()
lcwd = os.listdir(cwd)
pcwd = os.path.dirname(cwd)
lpcwd = pcwd and os.listdir(pcwd) or '???'
exed = os.path.abspath(os.path.dirname(sys.argv[0]))
project_version='???'
md=None
try:
import marshal
md=marshal.loads(__loader__.get_data('meta_data.mar'))
project_version=md['project_version']
except:
pass
env = os.environ
K=list(env.keys())
K.sort()
store.update({ 'gmt': time.asctime(time.gmtime(time.time())),
'platform': sys.platform,
'version': sys.version,
'hexversion': hex(sys.hexversion),
'executable': sys.executable,
'exec_prefix': sys.exec_prefix,
'prefix': sys.prefix,
'path': sys.path,
'argv': sys.argv,
'cwd': cwd,
'hostname': socket.gethostname(),
'lcwd': lcwd,
'lpcwd': lpcwd,
'byteorder': sys.byteorder,
'maxint': getattr(sys,'maxunicode','????'),
'api_version': getattr(sys,'api_version','????'),
'version_info': getattr(sys,'version_info','????'),
'winver': getattr(sys,'winver','????'),
'environment': '\n\t\t\t'.join(['']+['%s=%r' % (k,env[k]) for k in K]),
'__loader__': repr(__loader__),
'project_meta_data': md,
'project_version': project_version,
})
for M,A in (
(sys,('getwindowsversion','getfilesystemencoding')),
(os,('uname', 'ctermid', 'getgid', 'getuid', 'getegid',
'geteuid', 'getlogin', 'getgroups', 'getpgrp', 'getpid', 'getppid',
)),
):
for a in A:
if hasattr(M,a):
try:
store[a] = getattr(M,a)()
except:
pass
if exed!=cwd:
try:
store.update({'exed': exed, 'lexed': os.listdir(exed),})
except:
pass
if getScript:
fn = os.path.abspath(sys.argv[0])
if os.path.isfile(fn):
try:
store['__script'] = (fn,open(fn,'r').read())
except:
pass
module_versions = {}
for n,m in sys.modules.items():
if n=='reportlab' or n=='rlextra' or n[:10]=='reportlab.' or n[:8]=='rlextra.':
v = [getattr(m,x,None) for x in ('__version__','__path__','__file__')]
if [_f for _f in v if _f]:
v = [v[0]] + [_f for _f in v[1:] if _f]
module_versions[n] = tuple(v)
store['__module_versions'] = module_versions
self.store['__payload'] = {}
self._add(kw)
def _add(self,D):
payload = self.store['__payload']
for k, v in D.items():
payload[k] = v
def add(self,**kw):
self._add(kw)
def _dump(self,f):
try:
pos=f.tell()
pickle.dump(self.store,f)
except:
S=self.store.copy()
ff=getBytesIO()
for k,v in S.items():
try:
pickle.dump({k:v},ff)
except:
S[k] = '<unpicklable object %r>' % v
f.seek(pos,0)
pickle.dump(S,f)
def dump(self):
f = open(self.fn,'wb')
try:
self._dump(f)
finally:
f.close()
def dumps(self):
f = getBytesIO()
self._dump(f)
return f.getvalue()
def _load(self,f):
self.store = pickle.load(f)
def load(self):
f = open(self.fn,'rb')
try:
self._load(f)
finally:
f.close()
def loads(self,s):
self._load(getBytesIO(s))
def _show_module_versions(self,k,v):
self._writeln(k[2:])
K = list(v.keys())
K.sort()
for k in K:
vk = vk0 = v[k]
if isinstance(vk,tuple): vk0 = vk[0]
try:
__import__(k)
m = sys.modules[k]
d = getattr(m,'__version__',None)==vk0 and 'SAME' or 'DIFFERENT'
except:
m = None
d = '??????unknown??????'
self._writeln(' %s = %s (%s)' % (k,vk,d))
def _banner(self,k,what):
self._writeln('###################%s %s##################' % (what,k[2:]))
def _start(self,k):
self._banner(k,'Start ')
def _finish(self,k):
self._banner(k,'Finish ')
def _show_lines(self,k,v):
self._start(k)
self._writeln(v)
self._finish(k)
def _show_file(self,k,v):
k = '%s %s' % (k,os.path.basename(v[0]))
self._show_lines(k,v[1])
def _show_payload(self,k,v):
if v:
import pprint
self._start(k)
pprint.pprint(v,self.stdout)
self._finish(k)
def _show_extensions(self):
for mn in ('_rl_accel','_renderPM','sgmlop','pyRXP','pyRXPU','_imaging','Image'):
try:
A = [mn].append
__import__(mn)
m = sys.modules[mn]
A(m.__file__)
for vn in ('__version__','VERSION','_version','version'):
if hasattr(m,vn):
A('%s=%r' % (vn,getattr(m,vn)))
except:
A('not found')
self._writeln(' '+' '.join(A.__self__))
specials = {'__module_versions': _show_module_versions,
'__payload': _show_payload,
'__traceback': _show_lines,
'__script': _show_file,
}
def show(self):
K = list(self.store.keys())
K.sort()
for k in K:
if k not in list(self.specials.keys()): self._writeln('%-15s = %s' % (k,self.store[k]))
for k in K:
if k in list(self.specials.keys()): self.specials[k](self,k,self.store[k])
self._show_extensions()
def payload(self,name):
return self.store['__payload'][name]
def __setitem__(self,name,value):
self.store['__payload'][name] = value
def __getitem__(self,name):
return self.store['__payload'][name]
def _writeln(self,msg):
self.stdout.write(msg+'\n')
def _flatten(L,a):
for x in L:
if isSeq(x): _flatten(x,a)
else: a(x)
def flatten(L):
'''recursively flatten the list or tuple L'''
R = []
_flatten(L,R.append)
return R
def find_locals(func,depth=0):
'''apply func to the locals at each stack frame till func returns a non false value'''
while 1:
_ = func(sys._getframe(depth).f_locals)
if _: return _
depth += 1
class _FmtSelfDict:
def __init__(self,obj,overrideArgs):
self.obj = obj
self._overrideArgs = overrideArgs
def __getitem__(self,k):
try:
return self._overrideArgs[k]
except KeyError:
try:
return self.obj.__dict__[k]
except KeyError:
return getattr(self.obj,k)
class FmtSelfDict:
'''mixin to provide the _fmt method'''
def _fmt(self,fmt,**overrideArgs):
D = _FmtSelfDict(self, overrideArgs)
return fmt % D
def _simpleSplit(txt,mW,SW):
L = []
ws = SW(' ')
O = []
w = -ws
for t in txt.split():
lt = SW(t)
if w+ws+lt<=mW or O==[]:
O.append(t)
w = w + ws + lt
else:
L.append(' '.join(O))
O = [t]
w = lt
if O!=[]: L.append(' '.join(O))
return L
def simpleSplit(text,fontName,fontSize,maxWidth):
from reportlab.pdfbase.pdfmetrics import stringWidth
lines = asUnicode(text).split(u'\n')
SW = lambda text, fN=fontName, fS=fontSize: stringWidth(text, fN, fS)
if maxWidth:
L = []
for l in lines:
L.extend(_simpleSplit(l,maxWidth,SW))
lines = L
return lines
def escapeTextOnce(text):
"Escapes once only"
from xml.sax.saxutils import escape
if text is None:
return text
if isBytes(text): s = text.decode('utf8')
text = escape(text)
text = text.replace(u'&amp;',u'&')
text = text.replace(u'&gt;', u'>')
text = text.replace(u'&lt;', u'<')
return text
if isPy3:
def fileName2FSEnc(fn):
if isUnicode(fn):
return fn
else:
for enc in fsEncodings:
try:
return fn.decode(enc)
except:
pass
raise ValueError('cannot convert %r to filesystem encoding' % fn)
else:
def fileName2FSEnc(fn):
'''attempt to convert a filename to utf8'''
from reportlab.rl_config import fsEncodings
if isUnicode(fn):
return asBytes(fn)
else:
for enc in fsEncodings:
try:
return fn.decode(enc).encode('utf8')
except:
pass
raise ValueError('cannot convert %r to utf8 for file path name' % fn)
import itertools
def prev_this_next(items):
"""
Loop over a collection with look-ahead and look-back.
From Thomas Guest,
http://wordaligned.org/articles/zippy-triples-served-with-python
Seriously useful looping tool (Google "zippy triples")
lets you loop a collection and see the previous and next items,
which get set to None at the ends.
To be used in layout algorithms where one wants a peek at the
next item coming down the pipe.
"""
extend = itertools.chain([None], items, [None])
prev, this, next = itertools.tee(extend, 3)
try:
next(this)
next(next)
next(next)
except StopIteration:
pass
return zip(prev, this, next)
def commasplit(s):
'''
Splits the string s at every unescaped comma and returns the result as a list.
To escape a comma, double it. Individual items are stripped.
To avoid the ambiguity of 3 successive commas to denote a comma at the beginning
or end of an item, add a space between the item seperator and the escaped comma.
>>> commasplit(u'a,b,c') == [u'a', u'b', u'c']
True
>>> commasplit('a,, , b , c ') == [u'a,', u'b', u'c']
True
>>> commasplit(u'a, ,,b, c') == [u'a', u',b', u'c']
'''
if isBytes(s): s = s.decode('utf8')
n = len(s)-1
s += u' '
i = 0
r=[u'']
while i<=n:
if s[i]==u',':
if s[i+1]==u',':
r[-1]+=u','
i += 1
else:
r[-1] = r[-1].strip()
if i!=n: r.append(u'')
else:
r[-1] += s[i]
i+=1
r[-1] = r[-1].strip()
return r
def commajoin(l):
'''
Inverse of commasplit, except that whitespace around items is not conserved.
Adds more whitespace than needed for simplicity and performance.
>>> commasplit(commajoin(['a', 'b', 'c'])) == [u'a', u'b', u'c']
True
>>> commasplit((commajoin([u'a,', u' b ', u'c'])) == [u'a,', u'b', u'c']
True
>>> commasplit((commajoin([u'a ', u',b', u'c'])) == [u'a', u',b', u'c']
'''
return u','.join([ u' ' + asUnicode(i).replace(u',', u',,') + u' ' for i in l ])
def findInPaths(fn,paths,isfile=True,fail=False):
'''search for relative files in likely places'''
exists = isfile and os.path.isfile or os.path.isdir
if exists(fn): return fn
pjoin = os.path.join
if not os.path.isabs(fn):
for p in paths:
pfn = pjoin(p,fn)
if exists(pfn):
return pfn
if fail: raise ValueError('cannot locate %r with paths=%r' % (fn,paths))
return fn
def annotateException(msg,enc='utf8'):
'''add msg to the args of an existing exception'''
if not msg: raise
t,v,b=sys.exc_info()
if not hasattr(v,'args'): raise
e = -1
A = list(v.args)
for i,a in enumerate(A):
if isinstance(a,str):
e = i
break
if e>=0:
if not isPy3:
if isUnicode(a):
if not isUnicode(msg):
msg=msg.decode(enc)
else:
if isUnicode(msg):
msg=msg.encode(enc)
else:
msg = str(msg)
if isinstance(v,IOError) and getattr(v,'strerror',None):
v.strerror = msg+'\n'+str(v.strerror)
else:
A[e] += msg
else:
A.append(msg)
v.args = tuple(A)
rl_reraise(t,v,b)
def escapeOnce(data):
"""Ensure XML output is escaped just once, irrespective of input
>>> escapeOnce('A & B')
'A & B'
>>> escapeOnce('C & D')
'C & D'
>>> escapeOnce('E &amp; F')
'E & F'
"""
data = data.replace("&", "&")
#...but if it was already escaped, make sure it
# is not done twice....this will turn any tags
# back to how they were at the start.
data = data.replace("&amp;", "&")
data = data.replace("&gt;", ">")
data = data.replace("&lt;", "<")
data = data.replace("&#", "&#")
#..and just in case someone had double-escaped it, do it again
data = data.replace("&amp;", "&")
data = data.replace("&gt;", ">")
data = data.replace("&lt;", "<")
return data
class IdentStr(str):
'''useful for identifying things that get split'''
def __new__(cls,value):
if isinstance(value,IdentStr):
inc = value.__inc
value = value[:-(2+len(str(inc)))]
inc += 1
else:
inc = 0
value += '[%d]' % inc
self = str.__new__(cls,value)
self.__inc = inc
return self
class RLString(str):
'''allows specification of extra properties of a string using a dictionary of extra attributes
eg fontName = RLString('proxima-nova-bold',
svgAttrs=dict(family='"proxima-nova"',weight='bold'))
'''
def __new__(cls,v,**kwds):
self = str.__new__(cls,v)
for k,v in kwds.items():
setattr(self,k,v)
return self
def makeFileName(s):
'''force filename strings to unicode so python can handle encoding stuff'''
if not isUnicode(s):
s = s.decode('utf8')
return s
|