1#!/usr/bin/env python3 2# 3# generate python wrappers from the XML API description 4# 5 6functions = {} 7enums = {} # { enumType: { enumConstant: enumValue } } 8 9import os 10import sys 11import string 12 13if __name__ == "__main__": 14 # launched as a script 15 srcPref = os.path.dirname(sys.argv[0]) 16else: 17 # imported 18 srcPref = os.path.dirname(__file__) 19 20####################################################################### 21# 22# That part if purely the API acquisition phase from the 23# XML API description 24# 25####################################################################### 26import os 27import xml.sax 28 29debug = 0 30 31def getparser(): 32 # Attach parser to an unmarshalling object. return both objects. 33 target = docParser() 34 parser = xml.sax.make_parser() 35 parser.setContentHandler(target) 36 return parser, target 37 38class docParser(xml.sax.handler.ContentHandler): 39 def __init__(self): 40 self._methodname = None 41 self._data = [] 42 self.in_function = 0 43 44 self.startElement = self.start 45 self.endElement = self.end 46 self.characters = self.data 47 48 def close(self): 49 if debug: 50 print("close") 51 52 def getmethodname(self): 53 return self._methodname 54 55 def data(self, text): 56 if debug: 57 print("data %s" % text) 58 self._data.append(text) 59 60 def start(self, tag, attrs): 61 if debug: 62 print("start %s, %s" % (tag, attrs)) 63 if tag == 'function': 64 self._data = [] 65 self.in_function = 1 66 self.function = None 67 self.function_cond = None 68 self.function_args = [] 69 self.function_descr = None 70 self.function_return = None 71 self.function_file = None 72 if 'name' in attrs.keys(): 73 self.function = attrs['name'] 74 if 'file' in attrs.keys(): 75 self.function_file = attrs['file'] 76 elif tag == 'cond': 77 self._data = [] 78 elif tag == 'info': 79 self._data = [] 80 elif tag == 'arg': 81 if self.in_function == 1: 82 self.function_arg_name = None 83 self.function_arg_type = None 84 self.function_arg_info = None 85 if 'name' in attrs.keys(): 86 self.function_arg_name = attrs['name'] 87 if 'type' in attrs.keys(): 88 self.function_arg_type = attrs['type'] 89 if 'info' in attrs.keys(): 90 self.function_arg_info = attrs['info'] 91 elif tag == 'return': 92 if self.in_function == 1: 93 self.function_return_type = None 94 self.function_return_info = None 95 self.function_return_field = None 96 if 'type' in attrs.keys(): 97 self.function_return_type = attrs['type'] 98 if 'info' in attrs.keys(): 99 self.function_return_info = attrs['info'] 100 if 'field' in attrs.keys(): 101 self.function_return_field = attrs['field'] 102 elif tag == 'enum': 103 enum(attrs['type'],attrs['name'],attrs['value']) 104 105 def end(self, tag): 106 if debug: 107 print("end %s" % tag) 108 if tag == 'function': 109 if self.function != None: 110 function(self.function, self.function_descr, 111 self.function_return, self.function_args, 112 self.function_file, self.function_cond) 113 self.in_function = 0 114 elif tag == 'arg': 115 if self.in_function == 1: 116 self.function_args.append([self.function_arg_name, 117 self.function_arg_type, 118 self.function_arg_info]) 119 elif tag == 'return': 120 if self.in_function == 1: 121 self.function_return = [self.function_return_type, 122 self.function_return_info, 123 self.function_return_field] 124 elif tag == 'info': 125 str = '' 126 for c in self._data: 127 str = str + c 128 if self.in_function == 1: 129 self.function_descr = str 130 elif tag == 'cond': 131 str = '' 132 for c in self._data: 133 str = str + c 134 if self.in_function == 1: 135 self.function_cond = str 136 137 138def function(name, desc, ret, args, file, cond): 139 functions[name] = (desc, ret, args, file, cond) 140 141def enum(type, name, value): 142 if type not in enums: 143 enums[type] = {} 144 enums[type][name] = value 145 146####################################################################### 147# 148# Some filtering rukes to drop functions/types which should not 149# be exposed as-is on the Python interface 150# 151####################################################################### 152 153skipped_modules = { 154 'xmlmemory': None, 155 'SAX': None, 156 'hash': None, 157 'list': None, 158 'threads': None, 159# 'xpointer': None, 160} 161skipped_types = { 162 'int *': "usually a return type", 163 'xmlSAXHandlerPtr': "not the proper interface for SAX", 164 'htmlSAXHandlerPtr': "not the proper interface for SAX", 165 'xmlRMutexPtr': "thread specific, skipped", 166 'xmlMutexPtr': "thread specific, skipped", 167 'xmlGlobalStatePtr': "thread specific, skipped", 168 'xmlListPtr': "internal representation not suitable for python", 169 'xmlBufferPtr': "internal representation not suitable for python", 170 'FILE *': None, 171} 172 173####################################################################### 174# 175# Table of remapping to/from the python type or class to the C 176# counterpart. 177# 178####################################################################### 179 180py_types = { 181 'void': (None, None, None, None), 182 'int': ('i', None, "int", "int"), 183 'long': ('l', None, "long", "long"), 184 'double': ('d', None, "double", "double"), 185 'unsigned int': ('i', None, "int", "int"), 186 'xmlChar': ('c', None, "int", "int"), 187 'unsigned char *': ('z', None, "charPtr", "char *"), 188 'char *': ('z', None, "charPtr", "char *"), 189 'const char *': ('z', None, "charPtrConst", "const char *"), 190 'xmlChar *': ('z', None, "xmlCharPtr", "xmlChar *"), 191 'const xmlChar *': ('z', None, "xmlCharPtrConst", "const xmlChar *"), 192 'xmlNodePtr': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 193 'const xmlNodePtr': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 194 'xmlNode *': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 195 'const xmlNode *': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 196 'xmlDtdPtr': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 197 'const xmlDtdPtr': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 198 'xmlDtd *': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 199 'const xmlDtd *': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 200 'xmlAttrPtr': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 201 'const xmlAttrPtr': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 202 'xmlAttr *': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 203 'const xmlAttr *': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 204 'xmlEntityPtr': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 205 'const xmlEntityPtr': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 206 'xmlEntity *': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 207 'const xmlEntity *': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 208 'xmlElementPtr': ('O', "xmlElement", "xmlElementPtr", "xmlElementPtr"), 209 'const xmlElementPtr': ('O', "xmlElement", "xmlElementPtr", "xmlElementPtr"), 210 'xmlElement *': ('O', "xmlElement", "xmlElementPtr", "xmlElementPtr"), 211 'const xmlElement *': ('O', "xmlElement", "xmlElementPtr", "xmlElementPtr"), 212 'xmlAttributePtr': ('O', "xmlAttribute", "xmlAttributePtr", "xmlAttributePtr"), 213 'const xmlAttributePtr': ('O', "xmlAttribute", "xmlAttributePtr", "xmlAttributePtr"), 214 'xmlAttribute *': ('O', "xmlAttribute", "xmlAttributePtr", "xmlAttributePtr"), 215 'const xmlAttribute *': ('O', "xmlAttribute", "xmlAttributePtr", "xmlAttributePtr"), 216 'xmlNsPtr': ('O', "xmlNode", "xmlNsPtr", "xmlNsPtr"), 217 'const xmlNsPtr': ('O', "xmlNode", "xmlNsPtr", "xmlNsPtr"), 218 'xmlNs *': ('O', "xmlNode", "xmlNsPtr", "xmlNsPtr"), 219 'const xmlNs *': ('O', "xmlNode", "xmlNsPtr", "xmlNsPtr"), 220 'xmlDocPtr': ('O', "xmlNode", "xmlDocPtr", "xmlDocPtr"), 221 'const xmlDocPtr': ('O', "xmlNode", "xmlDocPtr", "xmlDocPtr"), 222 'xmlDoc *': ('O', "xmlNode", "xmlDocPtr", "xmlDocPtr"), 223 'const xmlDoc *': ('O', "xmlNode", "xmlDocPtr", "xmlDocPtr"), 224 'htmlDocPtr': ('O', "xmlNode", "xmlDocPtr", "xmlDocPtr"), 225 'const htmlDocPtr': ('O', "xmlNode", "xmlDocPtr", "xmlDocPtr"), 226 'htmlDoc *': ('O', "xmlNode", "xmlDocPtr", "xmlDocPtr"), 227 'const htmlDoc *': ('O', "xmlNode", "xmlDocPtr", "xmlDocPtr"), 228 'htmlNodePtr': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 229 'const htmlNodePtr': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 230 'htmlNode *': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 231 'const htmlNode *': ('O', "xmlNode", "xmlNodePtr", "xmlNodePtr"), 232 'xmlXPathContextPtr': ('O', "xmlXPathContext", "xmlXPathContextPtr", "xmlXPathContextPtr"), 233 'xmlXPathContext *': ('O', "xpathContext", "xmlXPathContextPtr", "xmlXPathContextPtr"), 234 'xmlXPathParserContextPtr': ('O', "xmlXPathParserContext", "xmlXPathParserContextPtr", "xmlXPathParserContextPtr"), 235 'xmlParserCtxtPtr': ('O', "parserCtxt", "xmlParserCtxtPtr", "xmlParserCtxtPtr"), 236 'xmlParserCtxt *': ('O', "parserCtxt", "xmlParserCtxtPtr", "xmlParserCtxtPtr"), 237 'htmlParserCtxtPtr': ('O', "parserCtxt", "xmlParserCtxtPtr", "xmlParserCtxtPtr"), 238 'htmlParserCtxt *': ('O', "parserCtxt", "xmlParserCtxtPtr", "xmlParserCtxtPtr"), 239 'xmlValidCtxtPtr': ('O', "ValidCtxt", "xmlValidCtxtPtr", "xmlValidCtxtPtr"), 240 'xmlCatalogPtr': ('O', "catalog", "xmlCatalogPtr", "xmlCatalogPtr"), 241 'FILE *': ('O', "File", "FILEPtr", "FILE *"), 242 'xmlURIPtr': ('O', "URI", "xmlURIPtr", "xmlURIPtr"), 243 'const xmlError *': ('O', "Error", "xmlErrorPtr", "const xmlError *"), 244 'xmlErrorPtr': ('O', "Error", "xmlErrorPtr", "xmlErrorPtr"), 245 'xmlOutputBufferPtr': ('O', "outputBuffer", "xmlOutputBufferPtr", "xmlOutputBufferPtr"), 246 'xmlParserInputBufferPtr': ('O', "inputBuffer", "xmlParserInputBufferPtr", "xmlParserInputBufferPtr"), 247 'xmlRegexpPtr': ('O', "xmlReg", "xmlRegexpPtr", "xmlRegexpPtr"), 248 'xmlTextReaderLocatorPtr': ('O', "xmlTextReaderLocator", "xmlTextReaderLocatorPtr", "xmlTextReaderLocatorPtr"), 249 'xmlTextReaderPtr': ('O', "xmlTextReader", "xmlTextReaderPtr", "xmlTextReaderPtr"), 250 'xmlRelaxNGPtr': ('O', "relaxNgSchema", "xmlRelaxNGPtr", "xmlRelaxNGPtr"), 251 'xmlRelaxNGParserCtxtPtr': ('O', "relaxNgParserCtxt", "xmlRelaxNGParserCtxtPtr", "xmlRelaxNGParserCtxtPtr"), 252 'xmlRelaxNGValidCtxtPtr': ('O', "relaxNgValidCtxt", "xmlRelaxNGValidCtxtPtr", "xmlRelaxNGValidCtxtPtr"), 253 'xmlSchemaPtr': ('O', "Schema", "xmlSchemaPtr", "xmlSchemaPtr"), 254 'xmlSchemaParserCtxtPtr': ('O', "SchemaParserCtxt", "xmlSchemaParserCtxtPtr", "xmlSchemaParserCtxtPtr"), 255 'xmlSchemaValidCtxtPtr': ('O', "SchemaValidCtxt", "xmlSchemaValidCtxtPtr", "xmlSchemaValidCtxtPtr"), 256} 257 258py_return_types = { 259 'xmlXPathObjectPtr': ('O', "foo", "xmlXPathObjectPtr", "xmlXPathObjectPtr"), 260} 261 262unknown_types = {} 263 264foreign_encoding_args = ( 265 'htmlCreateMemoryParserCtxt', 266 'htmlCtxtReadMemory', 267 'htmlParseChunk', 268 'htmlReadMemory', 269 'xmlCreateMemoryParserCtxt', 270 'xmlCtxtReadMemory', 271 'xmlCtxtResetPush', 272 'xmlParseChunk', 273 'xmlParseMemory', 274 'xmlReadMemory', 275 'xmlRecoverMemory', 276) 277 278####################################################################### 279# 280# This part writes the C <-> Python stubs libxml2-py.[ch] and 281# the table libxml2-export.c to add when registrering the Python module 282# 283####################################################################### 284 285# Class methods which are written by hand in libxml.c but the Python-level 286# code is still automatically generated (so they are not in skip_function()). 287skip_impl = ( 288 'xmlSaveFileTo', 289 'xmlSaveFormatFileTo', 290) 291 292deprecated_funcs = { 293 'htmlAutoCloseTag': True, 294 'htmlDefaultSAXHandlerInit': True, 295 'htmlHandleOmittedElem': True, 296 'htmlInitAutoClose': True, 297 'htmlIsAutoClosed': True, 298 'htmlIsBooleanAttr': True, 299 'htmlParseCharRef': True, 300 'htmlParseElement': True, 301 'namePop': True, 302 'namePush': True, 303 'nodePop': True, 304 'nodePush': True, 305 'xmlByteConsumed': True, 306 'xmlCheckFilename': True, 307 'xmlCheckLanguageID': True, 308 'xmlCleanupCharEncodingHandlers': True, 309 'xmlCleanupGlobals': True, 310 'xmlCopyChar': True, 311 'xmlDefaultSAXHandlerInit': True, 312 'xmlDictCleanup': True, 313 'xmlFileMatch': True, 314 'xmlGetCompressMode': True, 315 'xmlInitCharEncodingHandlers': True, 316 'xmlInitGlobals': True, 317 'xmlInitializeDict': True, 318 'xmlIOFTPMatch': True, 319 'xmlIOHTTPMatch': True, 320 'xmlIsLetter': True, 321 'xmlIsRef': True, 322 'xmlKeepBlanksDefault': True, 323 'xmlLineNumbersDefault': True, 324 'xmlNanoHTTPCleanup': True, 325 'xmlNanoHTTPInit': True, 326 'xmlNanoHTTPScanProxy': True, 327 'xmlNextChar': True, 328 'xmlNormalizeWindowsPath': True, 329 'xmlParseAttValue': True, 330 'xmlParseAttributeListDecl': True, 331 'xmlParseCDSect': True, 332 'xmlParseCharData': True, 333 'xmlParseCharRef': True, 334 'xmlParseComment': True, 335 'xmlParseDocTypeDecl': True, 336 'xmlParseElement': True, 337 'xmlParseElementDecl': True, 338 'xmlParseEncName': True, 339 'xmlParseEncodingDecl': True, 340 'xmlParseEndTag': True, 341 'xmlParseEntity': True, 342 'xmlParseEntityDecl': True, 343 'xmlParseEntityRef': True, 344 'xmlParseMarkupDecl': True, 345 'xmlParseMisc': True, 346 'xmlParseName': True, 347 'xmlParseNmtoken': True, 348 'xmlParseNotationDecl': True, 349 'xmlParsePEReference': True, 350 'xmlParsePI': True, 351 'xmlParsePITarget': True, 352 'xmlParsePubidLiteral': True, 353 'xmlParseReference': True, 354 'xmlParseSDDecl': True, 355 'xmlParseStartTag': True, 356 'xmlParseSystemLiteral': True, 357 'xmlParseTextDecl': True, 358 'xmlParseVersionInfo': True, 359 'xmlParseVersionNum': True, 360 'xmlParseXMLDecl': True, 361 'xmlParserHandlePEReference': True, 362 'xmlParserInputBufferGrow': True, 363 'xmlParserInputBufferPush': True, 364 'xmlParserInputBufferRead': True, 365 'xmlParserSetLineNumbers': True, 366 'xmlParserSetLoadSubset': True, 367 'xmlParserSetPedantic': True, 368 'xmlParserSetReplaceEntities': True, 369 'xmlParserSetValidate': True, 370 'xmlPedanticParserDefault': True, 371 'xmlRecoverDoc': True, 372 'xmlRecoverFile': True, 373 'xmlRecoverMemory': True, 374 'xmlRegisterHTTPPostCallbacks': True, 375 'xmlRelaxNGCleanupTypes': True, 376 'xmlRelaxNGInitTypes': True, 377 'xmlRemoveRef': True, 378 'xmlSAXDefaultVersion': True, 379 'xmlSchemaCleanupTypes': True, 380 'xmlSchemaInitTypes': True, 381 'xmlSetCompressMode': True, 382 'xmlSetupParserForBuffer': True, 383 'xmlSkipBlankChars': True, 384 'xmlStringDecodeEntities': True, 385 'xmlStringLenDecodeEntities': True, 386 'xmlSubstituteEntitiesDefault': True, 387 'xmlThrDefDefaultBufferSize': True, 388 'xmlThrDefDoValidityCheckingDefaultValue': True, 389 'xmlThrDefGetWarningsDefaultValue': True, 390 'xmlThrDefIndentTreeOutput': True, 391 'xmlThrDefKeepBlanksDefaultValue': True, 392 'xmlThrDefLineNumbersDefaultValue': True, 393 'xmlThrDefLoadExtDtdDefaultValue': True, 394 'xmlThrDefParserDebugEntities': True, 395 'xmlThrDefPedanticParserDefaultValue': True, 396 'xmlThrDefSaveNoEmptyTags': True, 397 'xmlThrDefSubstituteEntitiesDefaultValue': True, 398 'xmlThrDefTreeIndentString': True, 399 'xmlValidCtxtNormalizeAttributeValue': True, 400 'xmlValidNormalizeAttributeValue': True, 401 'xmlValidateAttributeValue': True, 402 'xmlValidateDocumentFinal': True, 403 'xmlValidateDtdFinal': True, 404 'xmlValidateNotationUse': True, 405 'xmlValidateOneAttribute': True, 406 'xmlValidateOneElement': True, 407 'xmlValidateOneNamespace': True, 408 'xmlValidatePopElement': True, 409 'xmlValidatePushCData': True, 410 'xmlValidatePushElement': True, 411 'xmlValidateRoot': True, 412 'xmlValidate': True, 413 'xmlXPathEvalExpr': True, 414 'xmlXPathInit': True, 415 'xmlXPtrEvalRangePredicate': True, 416 'xmlXPtrNewCollapsedRange': True, 417 'xmlXPtrNewContext': True, 418 'xmlXPtrNewLocationSetNodes': True, 419 'xmlXPtrNewRange': True, 420 'xmlXPtrNewRangeNodes': True, 421 'xmlXPtrRangeToFunction': True, 422} 423 424def skip_function(name): 425 if name[0:12] == "xmlXPathWrap": 426 return 1 427 if name == "xmlFreeParserCtxt": 428 return 1 429 if name == "xmlCleanupParser": 430 return 1 431 if name == "xmlFreeTextReader": 432 return 1 433# if name[0:11] == "xmlXPathNew": 434# return 1 435 # the next function is defined in libxml.c 436 if name == "xmlRelaxNGFreeValidCtxt": 437 return 1 438 if name == "xmlFreeValidCtxt": 439 return 1 440 if name == "xmlSchemaFreeValidCtxt": 441 return 1 442 443# 444# Those are skipped because the Const version is used of the bindings 445# instead. 446# 447 if name == "xmlTextReaderBaseUri": 448 return 1 449 if name == "xmlTextReaderLocalName": 450 return 1 451 if name == "xmlTextReaderName": 452 return 1 453 if name == "xmlTextReaderNamespaceUri": 454 return 1 455 if name == "xmlTextReaderPrefix": 456 return 1 457 if name == "xmlTextReaderXmlLang": 458 return 1 459 if name == "xmlTextReaderValue": 460 return 1 461 if name == "xmlOutputBufferClose": # handled by by the superclass 462 return 1 463 if name == "xmlOutputBufferFlush": # handled by by the superclass 464 return 1 465 if name == "xmlErrMemory": 466 return 1 467 468 if name == "xmlValidBuildContentModel": 469 return 1 470 if name == "xmlValidateElementDecl": 471 return 1 472 if name == "xmlValidateAttributeDecl": 473 return 1 474 if name == "xmlPopInputCallbacks": 475 return 1 476 477 return 0 478 479def print_function_wrapper(name, output, export, include): 480 global py_types 481 global unknown_types 482 global functions 483 global skipped_modules 484 485 try: 486 (desc, ret, args, file, cond) = functions[name] 487 except: 488 print("failed to get function %s infos") 489 return 490 491 if file in skipped_modules: 492 return 0 493 if skip_function(name) == 1: 494 return 0 495 if name in skip_impl: 496 # Don't delete the function entry in the caller. 497 return 1 498 499 if name.startswith('xmlUCSIs'): 500 is_deprecated = name != 'xmlUCSIsBlock' and name != 'xmlUCSIsCat' 501 else: 502 is_deprecated = name in deprecated_funcs 503 504 c_call = "" 505 format="" 506 format_args="" 507 c_args="" 508 c_return="" 509 c_convert="" 510 c_release="" 511 num_bufs=0 512 for arg in args: 513 # This should be correct 514 if arg[1][0:6] == "const ": 515 arg[1] = arg[1][6:] 516 c_args = c_args + " %s %s;\n" % (arg[1], arg[0]) 517 if arg[1] in py_types: 518 (f, t, n, c) = py_types[arg[1]] 519 if (f == 'z') and (name in foreign_encoding_args) and (num_bufs == 0): 520 f = 's#' 521 if f != None: 522 format = format + f 523 if t != None: 524 format_args = format_args + ", &pyobj_%s" % (arg[0]) 525 c_args = c_args + " PyObject *pyobj_%s;\n" % (arg[0]) 526 c_convert = c_convert + \ 527 " %s = (%s) Py%s_Get(pyobj_%s);\n" % (arg[0], 528 arg[1], t, arg[0]) 529 else: 530 format_args = format_args + ", &%s" % (arg[0]) 531 if f == 's#': 532 format_args = format_args + ", &py_buffsize%d" % num_bufs 533 c_args = c_args + " Py_ssize_t py_buffsize%d;\n" % num_bufs 534 num_bufs = num_bufs + 1 535 if c_call != "": 536 c_call = c_call + ", " 537 c_call = c_call + "%s" % (arg[0]) 538 if t == "File": 539 c_release = c_release + \ 540 " PyFile_Release(%s);\n" % (arg[0]) 541 else: 542 if arg[1] in skipped_types: 543 return 0 544 if arg[1] in unknown_types: 545 lst = unknown_types[arg[1]] 546 lst.append(name) 547 else: 548 unknown_types[arg[1]] = [name] 549 return -1 550 if format != "": 551 format = format + ":%s" % (name) 552 553 if ret[0] == 'void': 554 if file == "python_accessor": 555 if args[1][1] == "char *" or args[1][1] == "xmlChar *": 556 c_call = "\n if (%s->%s != NULL) xmlFree(%s->%s);\n" % ( 557 args[0][0], args[1][0], args[0][0], args[1][0]) 558 c_call = c_call + " %s->%s = (%s)xmlStrdup((const xmlChar *)%s);\n" % (args[0][0], 559 args[1][0], args[1][1], args[1][0]) 560 else: 561 c_call = "\n %s->%s = %s;\n" % (args[0][0], args[1][0], 562 args[1][0]) 563 else: 564 c_call = "\n %s(%s);\n" % (name, c_call) 565 ret_convert = " Py_INCREF(Py_None);\n return(Py_None);\n" 566 elif ret[0] in py_types: 567 (f, t, n, c) = py_types[ret[0]] 568 c_return = c_return + " %s c_retval;\n" % (ret[0]) 569 if file == "python_accessor" and ret[2] != None: 570 c_call = "\n c_retval = %s->%s;\n" % (args[0][0], ret[2]) 571 else: 572 c_call = "\n c_retval = %s(%s);\n" % (name, c_call) 573 ret_convert = " py_retval = libxml_%sWrap((%s) c_retval);\n" % (n,c) 574 ret_convert = ret_convert + " return(py_retval);\n" 575 elif ret[0] in py_return_types: 576 (f, t, n, c) = py_return_types[ret[0]] 577 c_return = c_return + " %s c_retval;\n" % (ret[0]) 578 c_call = "\n c_retval = %s(%s);\n" % (name, c_call) 579 ret_convert = " py_retval = libxml_%sWrap((%s) c_retval);\n" % (n,c) 580 ret_convert = ret_convert + " return(py_retval);\n" 581 else: 582 if ret[0] in skipped_types: 583 return 0 584 if ret[0] in unknown_types: 585 lst = unknown_types[ret[0]] 586 lst.append(name) 587 else: 588 unknown_types[ret[0]] = [name] 589 return -1 590 591 if cond != None and cond != "": 592 include.write("#if %s\n" % cond) 593 export.write("#if %s\n" % cond) 594 output.write("#if %s\n" % cond) 595 596 include.write("PyObject * ") 597 include.write("libxml_%s(PyObject *self, PyObject *args);\n" % (name)) 598 599 export.write(" { (char *)\"%s\", libxml_%s, METH_VARARGS, NULL },\n" % 600 (name, name)) 601 602 if file == "python": 603 # Those have been manually generated 604 if cond != None and cond != "": 605 include.write("#endif\n") 606 export.write("#endif\n") 607 output.write("#endif\n") 608 return 1 609 if file == "python_accessor" and ret[0] != "void" and ret[2] is None: 610 # Those have been manually generated 611 if cond != None and cond != "": 612 include.write("#endif\n") 613 export.write("#endif\n") 614 output.write("#endif\n") 615 return 1 616 617 if is_deprecated: 618 output.write("XML_IGNORE_DEPRECATION_WARNINGS\n") 619 output.write("PyObject *\n") 620 output.write("libxml_%s(PyObject *self ATTRIBUTE_UNUSED," % (name)) 621 output.write(" PyObject *args") 622 if format == "": 623 output.write(" ATTRIBUTE_UNUSED") 624 output.write(") {\n") 625 if ret[0] != 'void': 626 output.write(" PyObject *py_retval;\n") 627 if c_return != "": 628 output.write(c_return) 629 if c_args != "": 630 output.write(c_args) 631 if is_deprecated: 632 output.write("\n if (libxml_deprecationWarning(\"%s\") == -1)\n" % 633 name) 634 output.write(" return(NULL);\n") 635 if format != "": 636 output.write("\n if (!PyArg_ParseTuple(args, (char *)\"%s\"%s))\n" % 637 (format, format_args)) 638 output.write(" return(NULL);\n") 639 if c_convert != "": 640 output.write(c_convert) 641 642 output.write(c_call) 643 if c_release != "": 644 output.write(c_release) 645 output.write(ret_convert) 646 output.write("}\n") 647 if is_deprecated: 648 output.write("XML_POP_WARNINGS\n") 649 output.write("\n") 650 651 if cond != None and cond != "": 652 include.write("#endif /* %s */\n" % cond) 653 export.write("#endif /* %s */\n" % cond) 654 output.write("#endif /* %s */\n" % cond) 655 return 1 656 657def buildStubs(): 658 global py_types 659 global py_return_types 660 global unknown_types 661 662 try: 663 f = open(os.path.join(srcPref,"libxml2-api.xml")) 664 data = f.read() 665 (parser, target) = getparser() 666 parser.feed(data) 667 parser.close() 668 except IOError as msg: 669 try: 670 f = open(os.path.join(srcPref,"..","doc","libxml2-api.xml")) 671 data = f.read() 672 (parser, target) = getparser() 673 parser.feed(data) 674 parser.close() 675 except IOError as msg: 676 print(file, ":", msg) 677 sys.exit(1) 678 679 n = len(list(functions.keys())) 680 print("Found %d functions in libxml2-api.xml" % (n)) 681 682 py_types['pythonObject'] = ('O', "pythonObject", "pythonObject", "pythonObject") 683 try: 684 f = open(os.path.join(srcPref,"libxml2-python-api.xml")) 685 data = f.read() 686 (parser, target) = getparser() 687 parser.feed(data) 688 parser.close() 689 except IOError as msg: 690 print(file, ":", msg) 691 692 693 print("Found %d functions in libxml2-python-api.xml" % ( 694 len(list(functions.keys())) - n)) 695 nb_wrap = 0 696 failed = 0 697 skipped = 0 698 699 include = open("libxml2-py.h", "w") 700 include.write("/* Generated */\n\n") 701 export = open("libxml2-export.c", "w") 702 export.write("/* Generated */\n\n") 703 wrapper = open("libxml2-py.c", "w") 704 wrapper.write("/* Generated */\n\n") 705 wrapper.write("#define PY_SSIZE_T_CLEAN\n") 706 wrapper.write("#include <Python.h>\n") 707 wrapper.write("#include <libxml/xmlversion.h>\n") 708 wrapper.write("#include <libxml/tree.h>\n") 709 wrapper.write("#include <libxml/xmlschemastypes.h>\n") 710 wrapper.write("#include \"libxml_wrap.h\"\n") 711 wrapper.write("#include \"libxml2-py.h\"\n\n") 712 for function in sorted(functions.keys()): 713 ret = print_function_wrapper(function, wrapper, export, include) 714 if ret < 0: 715 failed = failed + 1 716 del functions[function] 717 if ret == 0: 718 skipped = skipped + 1 719 del functions[function] 720 if ret == 1: 721 nb_wrap = nb_wrap + 1 722 include.close() 723 export.close() 724 wrapper.close() 725 726 print("Generated %d wrapper functions, %d failed, %d skipped" % (nb_wrap, 727 failed, skipped)) 728# print("Missing type converters: ") 729# for type in list(unknown_types.keys()): 730# print("%s:%d " % (type, len(unknown_types[type]))) 731# print() 732 733####################################################################### 734# 735# This part writes part of the Python front-end classes based on 736# mapping rules between types and classes and also based on function 737# renaming to get consistent function names at the Python level 738# 739####################################################################### 740 741# 742# The type automatically remapped to generated classes 743# 744classes_type = { 745 "xmlNodePtr": ("._o", "xmlNode(_obj=%s)", "xmlNode"), 746 "xmlNode *": ("._o", "xmlNode(_obj=%s)", "xmlNode"), 747 "xmlDocPtr": ("._o", "xmlDoc(_obj=%s)", "xmlDoc"), 748 "xmlDoc *": ("._o", "xmlDoc(_obj=%s)", "xmlDoc"), 749 "htmlDocPtr": ("._o", "xmlDoc(_obj=%s)", "xmlDoc"), 750 "htmlxmlDocPtr *": ("._o", "xmlDoc(_obj=%s)", "xmlDoc"), 751 "xmlAttrPtr": ("._o", "xmlAttr(_obj=%s)", "xmlAttr"), 752 "xmlAttr *": ("._o", "xmlAttr(_obj=%s)", "xmlAttr"), 753 "xmlNsPtr": ("._o", "xmlNs(_obj=%s)", "xmlNs"), 754 "xmlNs *": ("._o", "xmlNs(_obj=%s)", "xmlNs"), 755 "xmlDtdPtr": ("._o", "xmlDtd(_obj=%s)", "xmlDtd"), 756 "xmlDtd *": ("._o", "xmlDtd(_obj=%s)", "xmlDtd"), 757 "xmlEntityPtr": ("._o", "xmlEntity(_obj=%s)", "xmlEntity"), 758 "xmlEntity *": ("._o", "xmlEntity(_obj=%s)", "xmlEntity"), 759 "xmlElementPtr": ("._o", "xmlElement(_obj=%s)", "xmlElement"), 760 "xmlElement *": ("._o", "xmlElement(_obj=%s)", "xmlElement"), 761 "xmlAttributePtr": ("._o", "xmlAttribute(_obj=%s)", "xmlAttribute"), 762 "xmlAttribute *": ("._o", "xmlAttribute(_obj=%s)", "xmlAttribute"), 763 "xmlXPathContextPtr": ("._o", "xpathContext(_obj=%s)", "xpathContext"), 764 "xmlXPathContext *": ("._o", "xpathContext(_obj=%s)", "xpathContext"), 765 "xmlXPathParserContext *": ("._o", "xpathParserContext(_obj=%s)", "xpathParserContext"), 766 "xmlXPathParserContextPtr": ("._o", "xpathParserContext(_obj=%s)", "xpathParserContext"), 767 "xmlParserCtxtPtr": ("._o", "parserCtxt(_obj=%s)", "parserCtxt"), 768 "xmlParserCtxt *": ("._o", "parserCtxt(_obj=%s)", "parserCtxt"), 769 "htmlParserCtxtPtr": ("._o", "parserCtxt(_obj=%s)", "parserCtxt"), 770 "htmlParserCtxt *": ("._o", "parserCtxt(_obj=%s)", "parserCtxt"), 771 "xmlValidCtxtPtr": ("._o", "ValidCtxt(_obj=%s)", "ValidCtxt"), 772 "xmlCatalogPtr": ("._o", "catalog(_obj=%s)", "catalog"), 773 "xmlURIPtr": ("._o", "URI(_obj=%s)", "URI"), 774 "const xmlError *": ("._o", "Error(_obj=%s)", "Error"), 775 "xmlErrorPtr": ("._o", "Error(_obj=%s)", "Error"), 776 "xmlOutputBufferPtr": ("._o", "outputBuffer(_obj=%s)", "outputBuffer"), 777 "xmlParserInputBufferPtr": ("._o", "inputBuffer(_obj=%s)", "inputBuffer"), 778 "xmlRegexpPtr": ("._o", "xmlReg(_obj=%s)", "xmlReg"), 779 "xmlTextReaderLocatorPtr": ("._o", "xmlTextReaderLocator(_obj=%s)", "xmlTextReaderLocator"), 780 "xmlTextReaderPtr": ("._o", "xmlTextReader(_obj=%s)", "xmlTextReader"), 781 'xmlRelaxNGPtr': ('._o', "relaxNgSchema(_obj=%s)", "relaxNgSchema"), 782 'xmlRelaxNGParserCtxtPtr': ('._o', "relaxNgParserCtxt(_obj=%s)", "relaxNgParserCtxt"), 783 'xmlRelaxNGValidCtxtPtr': ('._o', "relaxNgValidCtxt(_obj=%s)", "relaxNgValidCtxt"), 784 'xmlSchemaPtr': ("._o", "Schema(_obj=%s)", "Schema"), 785 'xmlSchemaParserCtxtPtr': ("._o", "SchemaParserCtxt(_obj=%s)", "SchemaParserCtxt"), 786 'xmlSchemaValidCtxtPtr': ("._o", "SchemaValidCtxt(_obj=%s)", "SchemaValidCtxt"), 787} 788 789converter_type = { 790 "xmlXPathObjectPtr": "xpathObjectRet(%s)", 791} 792 793primary_classes = ["xmlNode", "xmlDoc"] 794 795classes_ancestor = { 796 "xmlNode" : "xmlCore", 797 "xmlDtd" : "xmlNode", 798 "xmlDoc" : "xmlNode", 799 "xmlAttr" : "xmlNode", 800 "xmlNs" : "xmlNode", 801 "xmlEntity" : "xmlNode", 802 "xmlElement" : "xmlNode", 803 "xmlAttribute" : "xmlNode", 804 "outputBuffer": "ioWriteWrapper", 805 "inputBuffer": "ioReadWrapper", 806 "parserCtxt": "parserCtxtCore", 807 "xmlTextReader": "xmlTextReaderCore", 808 "ValidCtxt": "ValidCtxtCore", 809 "SchemaValidCtxt": "SchemaValidCtxtCore", 810 "relaxNgValidCtxt": "relaxNgValidCtxtCore", 811} 812classes_destructors = { 813 "parserCtxt": "xmlFreeParserCtxt", 814 "catalog": "xmlFreeCatalog", 815 "URI": "xmlFreeURI", 816# "outputBuffer": "xmlOutputBufferClose", 817 "inputBuffer": "xmlFreeParserInputBuffer", 818 "xmlReg": "xmlRegFreeRegexp", 819 "xmlTextReader": "xmlFreeTextReader", 820 "relaxNgSchema": "xmlRelaxNGFree", 821 "relaxNgParserCtxt": "xmlRelaxNGFreeParserCtxt", 822 "relaxNgValidCtxt": "xmlRelaxNGFreeValidCtxt", 823 "Schema": "xmlSchemaFree", 824 "SchemaParserCtxt": "xmlSchemaFreeParserCtxt", 825 "SchemaValidCtxt": "xmlSchemaFreeValidCtxt", 826 "ValidCtxt": "xmlFreeValidCtxt", 827} 828 829functions_noexcept = { 830 "xmlHasProp": 1, 831 "xmlHasNsProp": 1, 832 "xmlDocSetRootElement": 1, 833 "xmlNodeGetNs": 1, 834 "xmlNodeGetNsDefs": 1, 835 "xmlNextElementSibling": 1, 836 "xmlPreviousElementSibling": 1, 837 "xmlFirstElementChild": 1, 838 "xmlLastElementChild": 1, 839} 840 841reference_keepers = { 842 "xmlTextReader": [('inputBuffer', 'input')], 843 "relaxNgValidCtxt": [('relaxNgSchema', 'schema')], 844 "SchemaValidCtxt": [('Schema', 'schema')], 845} 846 847function_classes = {} 848 849function_classes["None"] = [] 850 851def nameFixup(name, classe, type, file): 852 listname = classe + "List" 853 ll = len(listname) 854 l = len(classe) 855 if name[0:l] == listname: 856 func = name[l:] 857 func = func[0:1].lower() + func[1:] 858 elif name[0:12] == "xmlParserGet" and file == "python_accessor": 859 func = name[12:] 860 func = func[0:1].lower() + func[1:] 861 elif name[0:12] == "xmlParserSet" and file == "python_accessor": 862 func = name[12:] 863 func = func[0:1].lower() + func[1:] 864 elif name[0:10] == "xmlNodeGet" and file == "python_accessor": 865 func = name[10:] 866 func = func[0:1].lower() + func[1:] 867 elif name[0:9] == "xmlURIGet" and file == "python_accessor": 868 func = name[9:] 869 func = func[0:1].lower() + func[1:] 870 elif name[0:9] == "xmlURISet" and file == "python_accessor": 871 func = name[6:] 872 func = func[0:1].lower() + func[1:] 873 elif name[0:11] == "xmlErrorGet" and file == "python_accessor": 874 func = name[11:] 875 func = func[0:1].lower() + func[1:] 876 elif name[0:17] == "xmlXPathParserGet" and file == "python_accessor": 877 func = name[17:] 878 func = func[0:1].lower() + func[1:] 879 elif name[0:11] == "xmlXPathGet" and file == "python_accessor": 880 func = name[11:] 881 func = func[0:1].lower() + func[1:] 882 elif name[0:11] == "xmlXPathSet" and file == "python_accessor": 883 func = name[8:] 884 func = func[0:1].lower() + func[1:] 885 elif name[0:15] == "xmlOutputBuffer" and file != "python": 886 func = name[15:] 887 func = func[0:1].lower() + func[1:] 888 elif name[0:20] == "xmlParserInputBuffer" and file != "python": 889 func = name[20:] 890 func = func[0:1].lower() + func[1:] 891 elif name[0:9] == "xmlRegexp" and file == "xmlregexp": 892 func = "regexp" + name[9:] 893 elif name[0:6] == "xmlReg" and file == "xmlregexp": 894 func = "regexp" + name[6:] 895 elif name[0:20] == "xmlTextReaderLocator" and file == "xmlreader": 896 func = name[20:] 897 elif name[0:18] == "xmlTextReaderConst" and file == "xmlreader": 898 func = name[18:] 899 elif name[0:13] == "xmlTextReader" and file == "xmlreader": 900 func = name[13:] 901 elif name[0:12] == "xmlReaderNew" and file == "xmlreader": 902 func = name[9:] 903 elif name[0:11] == "xmlACatalog": 904 func = name[11:] 905 func = func[0:1].lower() + func[1:] 906 elif name[0:l] == classe: 907 func = name[l:] 908 func = func[0:1].lower() + func[1:] 909 elif name[0:7] == "libxml_": 910 func = name[7:] 911 func = func[0:1].lower() + func[1:] 912 elif name[0:6] == "xmlGet": 913 func = name[6:] 914 func = func[0:1].lower() + func[1:] 915 elif name[0:3] == "xml": 916 func = name[3:] 917 func = func[0:1].lower() + func[1:] 918 else: 919 func = name 920 if func[0:5] == "xPath": 921 func = "xpath" + func[5:] 922 elif func[0:4] == "xPtr": 923 func = "xpointer" + func[4:] 924 elif func[0:8] == "xInclude": 925 func = "xinclude" + func[8:] 926 elif func[0:2] == "iD": 927 func = "ID" + func[2:] 928 elif func[0:3] == "uRI": 929 func = "URI" + func[3:] 930 elif func[0:4] == "uTF8": 931 func = "UTF8" + func[4:] 932 elif func[0:3] == 'sAX': 933 func = "SAX" + func[3:] 934 return func 935 936 937def functionCompare(info1, info2): 938 (index1, func1, name1, ret1, args1, file1) = info1 939 (index2, func2, name2, ret2, args2, file2) = info2 940 if file1 == file2: 941 if func1 < func2: 942 return -1 943 if func1 > func2: 944 return 1 945 if file1 == "python_accessor": 946 return -1 947 if file2 == "python_accessor": 948 return 1 949 if file1 < file2: 950 return -1 951 if file1 > file2: 952 return 1 953 return 0 954 955def cmp_to_key(mycmp): 956 'Convert a cmp= function into a key= function' 957 class K(object): 958 def __init__(self, obj, *args): 959 self.obj = obj 960 def __lt__(self, other): 961 return mycmp(self.obj, other.obj) < 0 962 def __gt__(self, other): 963 return mycmp(self.obj, other.obj) > 0 964 def __eq__(self, other): 965 return mycmp(self.obj, other.obj) == 0 966 def __le__(self, other): 967 return mycmp(self.obj, other.obj) <= 0 968 def __ge__(self, other): 969 return mycmp(self.obj, other.obj) >= 0 970 def __ne__(self, other): 971 return mycmp(self.obj, other.obj) != 0 972 return K 973def writeDoc(name, args, indent, output): 974 if functions[name][0] is None or functions[name][0] == "": 975 return 976 val = functions[name][0] 977 val = val.replace("NULL", "None") 978 output.write(indent) 979 output.write('"""') 980 while len(val) > 60: 981 if val[0] == " ": 982 val = val[1:] 983 continue 984 str = val[0:60] 985 i = str.rfind(" ") 986 if i < 0: 987 i = 60 988 str = val[0:i] 989 val = val[i:] 990 output.write(str) 991 output.write('\n ') 992 output.write(indent) 993 output.write(val) 994 output.write(' """\n') 995 996def buildWrappers(): 997 global ctypes 998 global py_types 999 global py_return_types 1000 global unknown_types 1001 global functions 1002 global function_classes 1003 global classes_type 1004 global classes_list 1005 global converter_type 1006 global primary_classes 1007 global converter_type 1008 global classes_ancestor 1009 global converter_type 1010 global primary_classes 1011 global classes_ancestor 1012 global classes_destructors 1013 global functions_noexcept 1014 1015 for type in classes_type.keys(): 1016 function_classes[classes_type[type][2]] = [] 1017 1018 # 1019 # Build the list of C types to look for ordered to start 1020 # with primary classes 1021 # 1022 ctypes = [] 1023 classes_list = [] 1024 ctypes_processed = {} 1025 classes_processed = {} 1026 for classe in primary_classes: 1027 classes_list.append(classe) 1028 classes_processed[classe] = () 1029 for type in classes_type.keys(): 1030 tinfo = classes_type[type] 1031 if tinfo[2] == classe: 1032 ctypes.append(type) 1033 ctypes_processed[type] = () 1034 for type in sorted(classes_type.keys()): 1035 if type in ctypes_processed: 1036 continue 1037 tinfo = classes_type[type] 1038 if tinfo[2] not in classes_processed: 1039 classes_list.append(tinfo[2]) 1040 classes_processed[tinfo[2]] = () 1041 1042 ctypes.append(type) 1043 ctypes_processed[type] = () 1044 1045 for name in functions.keys(): 1046 found = 0 1047 (desc, ret, args, file, cond) = functions[name] 1048 for type in ctypes: 1049 classe = classes_type[type][2] 1050 1051 if name[0:3] == "xml" and len(args) >= 1 and args[0][1] == type: 1052 found = 1 1053 func = nameFixup(name, classe, type, file) 1054 info = (0, func, name, ret, args, file) 1055 function_classes[classe].append(info) 1056 elif name[0:3] == "xml" and len(args) >= 2 and args[1][1] == type \ 1057 and file != "python_accessor": 1058 found = 1 1059 func = nameFixup(name, classe, type, file) 1060 info = (1, func, name, ret, args, file) 1061 function_classes[classe].append(info) 1062 elif name[0:4] == "html" and len(args) >= 1 and args[0][1] == type: 1063 found = 1 1064 func = nameFixup(name, classe, type, file) 1065 info = (0, func, name, ret, args, file) 1066 function_classes[classe].append(info) 1067 elif name[0:4] == "html" and len(args) >= 2 and args[1][1] == type \ 1068 and file != "python_accessor": 1069 found = 1 1070 func = nameFixup(name, classe, type, file) 1071 info = (1, func, name, ret, args, file) 1072 function_classes[classe].append(info) 1073 if found == 1: 1074 continue 1075 if name[0:8] == "xmlXPath": 1076 continue 1077 if name[0:6] == "xmlStr": 1078 continue 1079 if name[0:10] == "xmlCharStr": 1080 continue 1081 func = nameFixup(name, "None", file, file) 1082 info = (0, func, name, ret, args, file) 1083 function_classes['None'].append(info) 1084 1085 classes = open("libxml2class.py", "w") 1086 txt = open("libxml2class.txt", "w") 1087 txt.write(" Generated Classes for libxml2-python\n\n") 1088 1089 txt.write("#\n# Global functions of the module\n#\n\n") 1090 if "None" in function_classes: 1091 flist = function_classes["None"] 1092 flist = sorted(flist, key=cmp_to_key(functionCompare)) 1093 oldfile = "" 1094 for info in flist: 1095 (index, func, name, ret, args, file) = info 1096 if file != oldfile: 1097 classes.write("#\n# Functions from module %s\n#\n\n" % file) 1098 txt.write("\n# functions from module %s\n" % file) 1099 oldfile = file 1100 classes.write("def %s(" % func) 1101 txt.write("%s()\n" % func) 1102 n = 0 1103 for arg in args: 1104 if n != 0: 1105 classes.write(", ") 1106 classes.write("%s" % arg[0]) 1107 n = n + 1 1108 classes.write("):\n") 1109 writeDoc(name, args, ' ', classes) 1110 1111 for arg in args: 1112 if arg[1] in classes_type: 1113 classes.write(" if %s is None: %s__o = None\n" % 1114 (arg[0], arg[0])) 1115 classes.write(" else: %s__o = %s%s\n" % 1116 (arg[0], arg[0], classes_type[arg[1]][0])) 1117 if arg[1] in py_types: 1118 (f, t, n, c) = py_types[arg[1]] 1119 if t == "File": 1120 classes.write(" if %s is not None: %s.flush()\n" % ( 1121 arg[0], arg[0])) 1122 1123 if ret[0] != "void": 1124 classes.write(" ret = ") 1125 else: 1126 classes.write(" ") 1127 classes.write("libxml2mod.%s(" % name) 1128 n = 0 1129 for arg in args: 1130 if n != 0: 1131 classes.write(", ") 1132 classes.write("%s" % arg[0]) 1133 if arg[1] in classes_type: 1134 classes.write("__o") 1135 n = n + 1 1136 classes.write(")\n") 1137 1138# This may be needed to reposition the I/O, but likely to cause more harm 1139# than good. Those changes in Python3 really break the model. 1140# for arg in args: 1141# if arg[1] in py_types: 1142# (f, t, n, c) = py_types[arg[1]] 1143# if t == "File": 1144# classes.write(" if %s is not None: %s.seek(0,0)\n"%( 1145# arg[0], arg[0])) 1146 1147 if ret[0] != "void": 1148 if ret[0] in classes_type: 1149 # 1150 # Raise an exception 1151 # 1152 if name in functions_noexcept: 1153 classes.write(" if ret is None:return None\n") 1154 elif name.find("URI") >= 0: 1155 classes.write( 1156 " if ret is None:raise uriError('%s() failed')\n" 1157 % (name)) 1158 elif name.find("XPath") >= 0: 1159 classes.write( 1160 " if ret is None:raise xpathError('%s() failed')\n" 1161 % (name)) 1162 elif name.find("Parse") >= 0: 1163 classes.write( 1164 " if ret is None:raise parserError('%s() failed')\n" 1165 % (name)) 1166 else: 1167 classes.write( 1168 " if ret is None:raise treeError('%s() failed')\n" 1169 % (name)) 1170 classes.write(" return ") 1171 classes.write(classes_type[ret[0]][1] % ("ret")) 1172 classes.write("\n") 1173 else: 1174 classes.write(" return ret\n") 1175 classes.write("\n") 1176 1177 txt.write("\n\n#\n# Set of classes of the module\n#\n\n") 1178 for classname in classes_list: 1179 if classname == "None": 1180 pass 1181 else: 1182 if classname in classes_ancestor: 1183 txt.write("\n\nClass %s(%s)\n" % (classname, 1184 classes_ancestor[classname])) 1185 classes.write("class %s(%s):\n" % (classname, 1186 classes_ancestor[classname])) 1187 classes.write(" def __init__(self, _obj=None):\n") 1188 if classes_ancestor[classname] == "xmlCore" or \ 1189 classes_ancestor[classname] == "xmlNode": 1190 classes.write(" if checkWrapper(_obj) != 0:") 1191 classes.write(" raise TypeError") 1192 classes.write("('%s got a wrong wrapper object type')\n" % \ 1193 classname) 1194 if classname in reference_keepers: 1195 rlist = reference_keepers[classname] 1196 for ref in rlist: 1197 classes.write(" self.%s = None\n" % ref[1]) 1198 classes.write(" self._o = _obj\n") 1199 classes.write(" %s.__init__(self, _obj=_obj)\n\n" % ( 1200 classes_ancestor[classname])) 1201 if classes_ancestor[classname] == "xmlCore" or \ 1202 classes_ancestor[classname] == "xmlNode": 1203 classes.write(" def __repr__(self):\n") 1204 format = "<%s (%%s) object at 0x%%x>" % (classname) 1205 classes.write(" return \"%s\" %% (self.name, int(pos_id (self)))\n\n" % ( 1206 format)) 1207 else: 1208 txt.write("Class %s()\n" % (classname)) 1209 classes.write("class %s:\n" % (classname)) 1210 classes.write(" def __init__(self, _obj=None):\n") 1211 if classname in reference_keepers: 1212 list = reference_keepers[classname] 1213 for ref in list: 1214 classes.write(" self.%s = None\n" % ref[1]) 1215 classes.write(" if _obj != None:self._o = _obj;return\n") 1216 classes.write(" self._o = None\n\n") 1217 destruct=None 1218 if classname in classes_destructors: 1219 classes.write(" def __del__(self):\n") 1220 classes.write(" if self._o != None:\n") 1221 classes.write(" libxml2mod.%s(self._o)\n" % 1222 classes_destructors[classname]) 1223 classes.write(" self._o = None\n\n") 1224 destruct=classes_destructors[classname] 1225 flist = function_classes[classname] 1226 flist = sorted(flist, key=cmp_to_key(functionCompare)) 1227 oldfile = "" 1228 for info in flist: 1229 (index, func, name, ret, args, file) = info 1230 # 1231 # Do not provide as method the destructors for the class 1232 # to avoid double free 1233 # 1234 if name == destruct: 1235 continue 1236 if file != oldfile: 1237 if file == "python_accessor": 1238 classes.write(" # accessors for %s\n" % (classname)) 1239 txt.write(" # accessors\n") 1240 else: 1241 classes.write(" #\n") 1242 classes.write(" # %s functions from module %s\n" % ( 1243 classname, file)) 1244 txt.write("\n # functions from module %s\n" % file) 1245 classes.write(" #\n\n") 1246 oldfile = file 1247 classes.write(" def %s(self" % func) 1248 txt.write(" %s()\n" % func) 1249 n = 0 1250 for arg in args: 1251 if n != index: 1252 classes.write(", %s" % arg[0]) 1253 n = n + 1 1254 classes.write("):\n") 1255 writeDoc(name, args, ' ', classes) 1256 n = 0 1257 for arg in args: 1258 if arg[1] in classes_type: 1259 if n != index: 1260 classes.write(" if %s is None: %s__o = None\n" % 1261 (arg[0], arg[0])) 1262 classes.write(" else: %s__o = %s%s\n" % 1263 (arg[0], arg[0], classes_type[arg[1]][0])) 1264 n = n + 1 1265 if ret[0] != "void": 1266 classes.write(" ret = ") 1267 else: 1268 classes.write(" ") 1269 classes.write("libxml2mod.%s(" % name) 1270 n = 0 1271 for arg in args: 1272 if n != 0: 1273 classes.write(", ") 1274 if n != index: 1275 classes.write("%s" % arg[0]) 1276 if arg[1] in classes_type: 1277 classes.write("__o") 1278 else: 1279 classes.write("self") 1280 if arg[1] in classes_type: 1281 classes.write(classes_type[arg[1]][0]) 1282 n = n + 1 1283 classes.write(")\n") 1284 if ret[0] != "void": 1285 if ret[0] in classes_type: 1286 # 1287 # Raise an exception 1288 # 1289 if name in functions_noexcept: 1290 classes.write( 1291 " if ret is None:return None\n") 1292 elif name.find("URI") >= 0: 1293 classes.write( 1294 " if ret is None:raise uriError('%s() failed')\n" 1295 % (name)) 1296 elif name.find("XPath") >= 0: 1297 classes.write( 1298 " if ret is None:raise xpathError('%s() failed')\n" 1299 % (name)) 1300 elif name.find("Parse") >= 0: 1301 classes.write( 1302 " if ret is None:raise parserError('%s() failed')\n" 1303 % (name)) 1304 else: 1305 classes.write( 1306 " if ret is None:raise treeError('%s() failed')\n" 1307 % (name)) 1308 1309 # 1310 # generate the returned class wrapper for the object 1311 # 1312 classes.write(" __tmp = ") 1313 classes.write(classes_type[ret[0]][1] % ("ret")) 1314 classes.write("\n") 1315 1316 # 1317 # Sometime one need to keep references of the source 1318 # class in the returned class object. 1319 # See reference_keepers for the list 1320 # 1321 tclass = classes_type[ret[0]][2] 1322 if tclass in reference_keepers: 1323 list = reference_keepers[tclass] 1324 for pref in list: 1325 if pref[0] == classname: 1326 classes.write(" __tmp.%s = self\n" % 1327 pref[1]) 1328 # 1329 # return the class 1330 # 1331 classes.write(" return __tmp\n") 1332 elif ret[0] in converter_type: 1333 # 1334 # Raise an exception 1335 # 1336 if name in functions_noexcept: 1337 classes.write( 1338 " if ret is None:return None") 1339 elif name.find("URI") >= 0: 1340 classes.write( 1341 " if ret is None:raise uriError('%s() failed')\n" 1342 % (name)) 1343 elif name.find("XPath") >= 0: 1344 classes.write( 1345 " if ret is None:raise xpathError('%s() failed')\n" 1346 % (name)) 1347 elif name.find("Parse") >= 0: 1348 classes.write( 1349 " if ret is None:raise parserError('%s() failed')\n" 1350 % (name)) 1351 else: 1352 classes.write( 1353 " if ret is None:raise treeError('%s() failed')\n" 1354 % (name)) 1355 classes.write(" return ") 1356 classes.write(converter_type[ret[0]] % ("ret")) 1357 classes.write("\n") 1358 else: 1359 classes.write(" return ret\n") 1360 classes.write("\n") 1361 1362 # 1363 # Generate enum constants 1364 # 1365 for type,enum in enums.items(): 1366 classes.write("# %s\n" % type) 1367 items = enum.items() 1368 items = sorted(items, key=(lambda i: int(i[1]))) 1369 for name,value in items: 1370 classes.write("%s = %s\n" % (name,value)) 1371 classes.write("\n") 1372 1373 txt.close() 1374 classes.close() 1375 1376buildStubs() 1377buildWrappers() 1378