File:  [ELWIX - Embedded LightWeight unIX -] / embedaddon / libxml2 / python / libxml.c
Revision 1.1.1.3 (vendor branch): download - view: text, annotated - select for diffs - revision graph
Sun Jun 15 19:53:33 2014 UTC (10 years, 1 month ago) by misho
Branches: libxml2, MAIN
CVS tags: v2_9_1p0, v2_9_1, HEAD
libxml2 2.9.1

    1: /*
    2:  * libxml.c: this modules implements the main part of the glue of the
    3:  *           libxml2 library and the Python interpreter. It provides the
    4:  *           entry points where an automatically generated stub is either
    5:  *           unpractical or would not match cleanly the Python model.
    6:  *
    7:  * If compiled with MERGED_MODULES, the entry point will be used to
    8:  * initialize both the libxml2 and the libxslt wrappers
    9:  *
   10:  * See Copyright for the status of this software.
   11:  *
   12:  * daniel@veillard.com
   13:  */
   14: #include <Python.h>
   15: #include <fileobject.h>
   16: /* #include "config.h" */
   17: #include <libxml/xmlmemory.h>
   18: #include <libxml/parser.h>
   19: #include <libxml/tree.h>
   20: #include <libxml/xpath.h>
   21: #include <libxml/xmlerror.h>
   22: #include <libxml/xpathInternals.h>
   23: #include <libxml/xmlmemory.h>
   24: #include <libxml/xmlIO.h>
   25: #include <libxml/c14n.h>
   26: #include <libxml/xmlreader.h>
   27: #include <libxml/xmlsave.h>
   28: #include "libxml_wrap.h"
   29: #include "libxml2-py.h"
   30: 
   31: #if defined(WITH_TRIO)
   32: #include "trio.h"
   33: #define vsnprintf trio_vsnprintf
   34: #endif
   35: 
   36: /* #define DEBUG */
   37: /* #define DEBUG_SAX */
   38: /* #define DEBUG_XPATH */
   39: /* #define DEBUG_ERROR */
   40: /* #define DEBUG_MEMORY */
   41: /* #define DEBUG_FILES */
   42: /* #define DEBUG_LOADER */
   43: 
   44: #if PY_MAJOR_VERSION >= 3
   45: PyObject *PyInit_libxml2mod(void);
   46: 
   47: #define PY_IMPORT_STRING_SIZE PyUnicode_FromStringAndSize
   48: #define PY_IMPORT_STRING PyUnicode_FromString
   49: #else
   50: void initlibxml2mod(void);
   51: #define PY_IMPORT_STRING_SIZE PyString_FromStringAndSize
   52: #define PY_IMPORT_STRING PyString_FromString
   53: #endif
   54: 
   55: 
   56: /**
   57:  * TODO:
   58:  *
   59:  * macro to flag unimplemented blocks
   60:  */
   61: #define TODO 								\
   62:     xmlGenericError(xmlGenericErrorContext,				\
   63: 	    "Unimplemented block at %s:%d\n",				\
   64:             __FILE__, __LINE__);
   65: /*
   66:  * the following vars are used for XPath extensions, but
   67:  * are also referenced within the parser cleanup routine.
   68:  */
   69: static int libxml_xpathCallbacksInitialized = 0;
   70: 
   71: typedef struct libxml_xpathCallback {
   72:     xmlXPathContextPtr ctx;
   73:     xmlChar *name;
   74:     xmlChar *ns_uri;
   75:     PyObject *function;
   76: } libxml_xpathCallback, *libxml_xpathCallbackPtr;
   77: typedef libxml_xpathCallback libxml_xpathCallbackArray[];
   78: static int libxml_xpathCallbacksAllocd = 10;
   79: static libxml_xpathCallbackArray *libxml_xpathCallbacks = NULL;
   80: static int libxml_xpathCallbacksNb = 0;
   81: 
   82: /************************************************************************
   83:  *									*
   84:  *		Memory debug interface					*
   85:  *									*
   86:  ************************************************************************/
   87: 
   88: #if 0
   89: extern void xmlMemFree(void *ptr);
   90: extern void *xmlMemMalloc(size_t size);
   91: extern void *xmlMemRealloc(void *ptr, size_t size);
   92: extern char *xmlMemoryStrdup(const char *str);
   93: #endif
   94: 
   95: static int libxmlMemoryDebugActivated = 0;
   96: static long libxmlMemoryAllocatedBase = 0;
   97: 
   98: static int libxmlMemoryDebug = 0;
   99: static xmlFreeFunc freeFunc = NULL;
  100: static xmlMallocFunc mallocFunc = NULL;
  101: static xmlReallocFunc reallocFunc = NULL;
  102: static xmlStrdupFunc strdupFunc = NULL;
  103: 
  104: static void
  105: libxml_xmlErrorInitialize(void); /* forward declare */
  106: 
  107: PyObject *
  108: libxml_xmlMemoryUsed(PyObject * self ATTRIBUTE_UNUSED, 
  109:         PyObject * args ATTRIBUTE_UNUSED)
  110: {
  111:     long ret;
  112:     PyObject *py_retval;
  113: 
  114:     ret = xmlMemUsed();
  115: 
  116:     py_retval = libxml_longWrap(ret);
  117:     return (py_retval);
  118: }
  119: 
  120: PyObject *
  121: libxml_xmlDebugMemory(PyObject * self ATTRIBUTE_UNUSED, PyObject * args)
  122: {
  123:     int activate;
  124:     PyObject *py_retval;
  125:     long ret;
  126: 
  127:     if (!PyArg_ParseTuple(args, (char *) "i:xmlDebugMemory", &activate))
  128:         return (NULL);
  129: 
  130: #ifdef DEBUG_MEMORY
  131:     printf("libxml_xmlDebugMemory(%d) called\n", activate);
  132: #endif
  133: 
  134:     if (activate != 0) {
  135:         if (libxmlMemoryDebug == 0) {
  136:             /*
  137:              * First initialize the library and grab the old memory handlers
  138:              * and switch the library to memory debugging
  139:              */
  140:             xmlMemGet((xmlFreeFunc *) & freeFunc,
  141:                       (xmlMallocFunc *) & mallocFunc,
  142:                       (xmlReallocFunc *) & reallocFunc,
  143:                       (xmlStrdupFunc *) & strdupFunc);
  144:             if ((freeFunc == xmlMemFree) && (mallocFunc == xmlMemMalloc) &&
  145:                 (reallocFunc == xmlMemRealloc) &&
  146:                 (strdupFunc == xmlMemoryStrdup)) {
  147:                 libxmlMemoryAllocatedBase = xmlMemUsed();
  148:             } else {
  149:                 /* 
  150:                  * cleanup first, because some memory has been
  151:                  * allocated with the non-debug malloc in xmlInitParser
  152:                  * when the python module was imported
  153:                  */
  154:                 xmlCleanupParser();
  155:                 ret = (long) xmlMemSetup(xmlMemFree, xmlMemMalloc,
  156:                                          xmlMemRealloc, xmlMemoryStrdup);
  157:                 if (ret < 0)
  158:                     goto error;
  159:                 libxmlMemoryAllocatedBase = xmlMemUsed();
  160:                 /* reinitialize */
  161:                 xmlInitParser();
  162:                 libxml_xmlErrorInitialize();
  163:             }
  164:             ret = 0;
  165:         } else if (libxmlMemoryDebugActivated == 0) {
  166:             libxmlMemoryAllocatedBase = xmlMemUsed();
  167:             ret = 0;
  168:         } else {
  169:             ret = xmlMemUsed() - libxmlMemoryAllocatedBase;
  170:         }
  171:         libxmlMemoryDebug = 1;
  172:         libxmlMemoryDebugActivated = 1;
  173:     } else {
  174:         if (libxmlMemoryDebugActivated == 1)
  175:             ret = xmlMemUsed() - libxmlMemoryAllocatedBase;
  176:         else
  177:             ret = 0;
  178:         libxmlMemoryDebugActivated = 0;
  179:     }
  180:   error:
  181:     py_retval = libxml_longWrap(ret);
  182:     return (py_retval);
  183: }
  184: 
  185: PyObject *
  186: libxml_xmlPythonCleanupParser(PyObject *self ATTRIBUTE_UNUSED,
  187:                               PyObject *args ATTRIBUTE_UNUSED) {
  188: 
  189:     int ix;
  190:     long freed = -1;
  191: 
  192:     if (libxmlMemoryDebug) {
  193:         freed = xmlMemUsed();
  194:     }
  195: 
  196:     xmlCleanupParser();
  197:     /*
  198:      * Need to confirm whether we really want to do this (required for
  199:      * memcheck) in all cases...
  200:      */
  201:    
  202:     if (libxml_xpathCallbacks != NULL) {	/* if ext funcs declared */
  203: 	for (ix=0; ix<libxml_xpathCallbacksNb; ix++) {
  204: 	    if ((*libxml_xpathCallbacks)[ix].name != NULL)
  205: 	        xmlFree((*libxml_xpathCallbacks)[ix].name);
  206: 	    if ((*libxml_xpathCallbacks)[ix].ns_uri != NULL)
  207: 	        xmlFree((*libxml_xpathCallbacks)[ix].ns_uri);
  208: 	}
  209: 	libxml_xpathCallbacksNb = 0;
  210:         xmlFree(libxml_xpathCallbacks);
  211: 	libxml_xpathCallbacks = NULL;
  212:     }
  213: 
  214:     if (libxmlMemoryDebug) {
  215:         freed -= xmlMemUsed();
  216: 	libxmlMemoryAllocatedBase -= freed;
  217: 	if (libxmlMemoryAllocatedBase < 0)
  218: 	    libxmlMemoryAllocatedBase = 0;
  219:     }
  220: 
  221:     Py_INCREF(Py_None);
  222:     return(Py_None);
  223: }
  224: 
  225: PyObject *
  226: libxml_xmlDumpMemory(ATTRIBUTE_UNUSED PyObject * self,
  227:                      ATTRIBUTE_UNUSED PyObject * args)
  228: {
  229: 
  230:     if (libxmlMemoryDebug != 0)
  231:         xmlMemoryDump();
  232:     Py_INCREF(Py_None);
  233:     return (Py_None);
  234: }
  235: 
  236: /************************************************************************
  237:  *									*
  238:  *		Handling Python FILE I/O at the C level			*
  239:  *	The raw I/O attack diectly the File objects, while the		*
  240:  *	other routines address the ioWrapper instance instead		*
  241:  *									*
  242:  ************************************************************************/
  243: 
  244: /**
  245:  * xmlPythonFileCloseUnref:
  246:  * @context:  the I/O context
  247:  *
  248:  * Close an I/O channel
  249:  */
  250: static int
  251: xmlPythonFileCloseRaw (void * context) {
  252:     PyObject *file, *ret;
  253: 
  254: #ifdef DEBUG_FILES
  255:     printf("xmlPythonFileCloseUnref\n");
  256: #endif
  257:     file = (PyObject *) context;
  258:     if (file == NULL) return(-1);
  259:     ret = PyEval_CallMethod(file, (char *) "close", (char *) "()");
  260:     if (ret != NULL) {
  261: 	Py_DECREF(ret);
  262:     }
  263:     Py_DECREF(file);
  264:     return(0);
  265: }
  266: 
  267: /**
  268:  * xmlPythonFileReadRaw:
  269:  * @context:  the I/O context
  270:  * @buffer:  where to drop data
  271:  * @len:  number of bytes to write
  272:  *
  273:  * Read @len bytes to @buffer from the Python file in the I/O channel
  274:  *
  275:  * Returns the number of bytes read
  276:  */
  277: static int
  278: xmlPythonFileReadRaw (void * context, char * buffer, int len) {
  279:     PyObject *file;
  280:     PyObject *ret;
  281:     int lenread = -1;
  282:     char *data;
  283: 
  284: #ifdef DEBUG_FILES
  285:     printf("xmlPythonFileReadRaw: %d\n", len);
  286: #endif
  287:     file = (PyObject *) context;
  288:     if (file == NULL) return(-1);
  289:     ret = PyEval_CallMethod(file, (char *) "read", (char *) "(i)", len);
  290:     if (ret == NULL) {
  291: 	printf("xmlPythonFileReadRaw: result is NULL\n");
  292: 	return(-1);
  293:     } else if (PyBytes_Check(ret)) {
  294: 	lenread = PyBytes_Size(ret);
  295: 	data = PyBytes_AsString(ret);
  296: #ifdef PyUnicode_Check
  297:     } else if PyUnicode_Check (ret) {
  298: #if PY_VERSION_HEX >= 0x03030000
  299:         size_t size;
  300: 	const char *tmp;
  301: 
  302: 	/* tmp doesn't need to be deallocated */
  303:         tmp = PyUnicode_AsUTF8AndSize(ret, &size);
  304: 
  305: 	lenread = (int) size;
  306: 	data = (char *) tmp;
  307: #else
  308:         PyObject *b;
  309: 	b = PyUnicode_AsUTF8String(ret);
  310: 	if (b == NULL) {
  311: 	    printf("xmlPythonFileReadRaw: failed to convert to UTF-8\n");
  312: 	    return(-1);
  313: 	}
  314: 	lenread = PyBytes_Size(b);
  315: 	data = PyBytes_AsString(b);
  316: 	Py_DECREF(b);
  317: #endif
  318: #endif
  319:     } else {
  320: 	printf("xmlPythonFileReadRaw: result is not a String\n");
  321: 	Py_DECREF(ret);
  322: 	return(-1);
  323:     }
  324:     if (lenread > len)
  325: 	memcpy(buffer, data, len);
  326:     else
  327: 	memcpy(buffer, data, lenread);
  328:     Py_DECREF(ret);
  329:     return(lenread);
  330: }
  331: 
  332: /**
  333:  * xmlPythonFileRead:
  334:  * @context:  the I/O context
  335:  * @buffer:  where to drop data
  336:  * @len:  number of bytes to write
  337:  *
  338:  * Read @len bytes to @buffer from the I/O channel.
  339:  *
  340:  * Returns the number of bytes read
  341:  */
  342: static int
  343: xmlPythonFileRead (void * context, char * buffer, int len) {
  344:     PyObject *file;
  345:     PyObject *ret;
  346:     int lenread = -1;
  347:     char *data;
  348: 
  349: #ifdef DEBUG_FILES
  350:     printf("xmlPythonFileRead: %d\n", len);
  351: #endif
  352:     file = (PyObject *) context;
  353:     if (file == NULL) return(-1);
  354:     ret = PyEval_CallMethod(file, (char *) "io_read", (char *) "(i)", len);
  355:     if (ret == NULL) {
  356: 	printf("xmlPythonFileRead: result is NULL\n");
  357: 	return(-1);
  358:     } else if (PyBytes_Check(ret)) {
  359: 	lenread = PyBytes_Size(ret);
  360: 	data = PyBytes_AsString(ret);
  361: #ifdef PyUnicode_Check
  362:     } else if PyUnicode_Check (ret) {
  363: #if PY_VERSION_HEX >= 0x03030000
  364:         size_t size;
  365: 	const char *tmp;
  366: 
  367: 	/* tmp doesn't need to be deallocated */
  368:         tmp = PyUnicode_AsUTF8AndSize(ret, &size);
  369: 
  370: 	lenread = (int) size;
  371: 	data = (char *) tmp;
  372: #else
  373:         PyObject *b;
  374: 	b = PyUnicode_AsUTF8String(ret);
  375: 	if (b == NULL) {
  376: 	    printf("xmlPythonFileRead: failed to convert to UTF-8\n");
  377: 	    return(-1);
  378: 	}
  379: 	lenread = PyBytes_Size(b);
  380: 	data = PyBytes_AsString(b);
  381: 	Py_DECREF(b);
  382: #endif
  383: #endif
  384:     } else {
  385: 	printf("xmlPythonFileRead: result is not a String\n");
  386: 	Py_DECREF(ret);
  387: 	return(-1);
  388:     }
  389:     if (lenread > len)
  390: 	memcpy(buffer, data, len);
  391:     else
  392: 	memcpy(buffer, data, lenread);
  393:     Py_DECREF(ret);
  394:     return(lenread);
  395: }
  396: 
  397: /**
  398:  * xmlFileWrite:
  399:  * @context:  the I/O context
  400:  * @buffer:  where to drop data
  401:  * @len:  number of bytes to write
  402:  *
  403:  * Write @len bytes from @buffer to the I/O channel.
  404:  *
  405:  * Returns the number of bytes written
  406:  */
  407: static int
  408: xmlPythonFileWrite (void * context, const char * buffer, int len) {
  409:     PyObject *file;
  410:     PyObject *string;
  411:     PyObject *ret = NULL;
  412:     int written = -1;
  413: 
  414: #ifdef DEBUG_FILES
  415:     printf("xmlPythonFileWrite: %d\n", len);
  416: #endif
  417:     file = (PyObject *) context;
  418:     if (file == NULL) return(-1);
  419:     string = PY_IMPORT_STRING_SIZE(buffer, len);
  420:     if (string == NULL) return(-1);
  421:     if (PyObject_HasAttrString(file, (char *) "io_write")) {
  422:         ret = PyEval_CallMethod(file, (char *) "io_write", (char *) "(O)",
  423: 	                        string);
  424:     } else if (PyObject_HasAttrString(file, (char *) "write")) {
  425:         ret = PyEval_CallMethod(file, (char *) "write", (char *) "(O)",
  426: 	                        string);
  427:     }
  428:     Py_DECREF(string);
  429:     if (ret == NULL) {
  430: 	printf("xmlPythonFileWrite: result is NULL\n");
  431: 	return(-1);
  432:     } else if (PyLong_Check(ret)) {
  433: 	written = (int) PyLong_AsLong(ret);
  434: 	Py_DECREF(ret);
  435:     } else if (ret == Py_None) {
  436: 	written = len;
  437: 	Py_DECREF(ret);
  438:     } else {
  439: 	printf("xmlPythonFileWrite: result is not an Int nor None\n");
  440: 	Py_DECREF(ret);
  441:     }
  442:     return(written);
  443: }
  444: 
  445: /**
  446:  * xmlPythonFileClose:
  447:  * @context:  the I/O context
  448:  *
  449:  * Close an I/O channel
  450:  */
  451: static int
  452: xmlPythonFileClose (void * context) {
  453:     PyObject *file, *ret = NULL;
  454: 
  455: #ifdef DEBUG_FILES
  456:     printf("xmlPythonFileClose\n");
  457: #endif
  458:     file = (PyObject *) context;
  459:     if (file == NULL) return(-1);
  460:     if (PyObject_HasAttrString(file, (char *) "io_close")) {
  461:         ret = PyEval_CallMethod(file, (char *) "io_close", (char *) "()");
  462:     } else if (PyObject_HasAttrString(file, (char *) "flush")) {
  463:         ret = PyEval_CallMethod(file, (char *) "flush", (char *) "()");
  464:     }
  465:     if (ret != NULL) {
  466: 	Py_DECREF(ret);
  467:     }
  468:     return(0);
  469: }
  470: 
  471: #ifdef LIBXML_OUTPUT_ENABLED
  472: /**
  473:  * xmlOutputBufferCreatePythonFile:
  474:  * @file:  a PyFile_Type
  475:  * @encoder:  the encoding converter or NULL
  476:  *
  477:  * Create a buffered output for the progressive saving to a PyFile_Type
  478:  * buffered C I/O
  479:  *
  480:  * Returns the new parser output or NULL
  481:  */
  482: static xmlOutputBufferPtr
  483: xmlOutputBufferCreatePythonFile(PyObject *file, 
  484: 	                        xmlCharEncodingHandlerPtr encoder) {
  485:     xmlOutputBufferPtr ret;
  486: 
  487:     if (file == NULL) return(NULL);
  488: 
  489:     ret = xmlAllocOutputBuffer(encoder);
  490:     if (ret != NULL) {
  491:         ret->context = file;
  492: 	/* Py_INCREF(file); */
  493: 	ret->writecallback = xmlPythonFileWrite;
  494: 	ret->closecallback = xmlPythonFileClose;
  495:     }
  496: 
  497:     return(ret);
  498: }
  499: 
  500: PyObject *
  501: libxml_xmlCreateOutputBuffer(ATTRIBUTE_UNUSED PyObject *self, PyObject *args) {
  502:     PyObject *py_retval;
  503:     PyObject *file;
  504:     xmlChar  *encoding;
  505:     xmlCharEncodingHandlerPtr handler = NULL;
  506:     xmlOutputBufferPtr buffer;
  507: 
  508: 
  509:     if (!PyArg_ParseTuple(args, (char *)"Oz:xmlOutputBufferCreate",
  510: 		&file, &encoding))
  511: 	return(NULL);
  512:     if ((encoding != NULL) && (encoding[0] != 0)) {
  513: 	handler = xmlFindCharEncodingHandler((const char *) encoding);
  514:     }
  515:     buffer = xmlOutputBufferCreatePythonFile(file, handler);
  516:     if (buffer == NULL)
  517: 	printf("libxml_xmlCreateOutputBuffer: buffer == NULL\n");
  518:     py_retval = libxml_xmlOutputBufferPtrWrap(buffer);
  519:     return(py_retval);
  520: }
  521: 
  522: /**
  523:  * libxml_outputBufferGetPythonFile:
  524:  * @buffer:  the I/O buffer
  525:  *
  526:  * read the Python I/O from the CObject
  527:  *
  528:  * Returns the new parser output or NULL
  529:  */
  530: static PyObject *
  531: libxml_outputBufferGetPythonFile(ATTRIBUTE_UNUSED PyObject *self,
  532:                                     PyObject *args) {
  533:     PyObject *buffer;
  534:     PyObject *file;
  535:     xmlOutputBufferPtr obj;
  536: 
  537:     if (!PyArg_ParseTuple(args, (char *)"O:outputBufferGetPythonFile",
  538: 			  &buffer))
  539: 	return(NULL);
  540: 
  541:     obj = PyoutputBuffer_Get(buffer);
  542:     if (obj == NULL) {
  543: 	fprintf(stderr,
  544: 	        "outputBufferGetPythonFile: obj == NULL\n");
  545: 	Py_INCREF(Py_None);
  546: 	return(Py_None);
  547:     }
  548:     if (obj->closecallback != xmlPythonFileClose) {
  549: 	fprintf(stderr,
  550: 	        "outputBufferGetPythonFile: not a python file wrapper\n");
  551: 	Py_INCREF(Py_None);
  552: 	return(Py_None);
  553:     }
  554:     file = (PyObject *) obj->context;
  555:     if (file == NULL) {
  556: 	Py_INCREF(Py_None);
  557: 	return(Py_None);
  558:     }
  559:     Py_INCREF(file);
  560:     return(file);
  561: }
  562: 
  563: static PyObject *
  564: libxml_xmlOutputBufferClose(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
  565:     PyObject *py_retval;
  566:     int c_retval;
  567:     xmlOutputBufferPtr out;
  568:     PyObject *pyobj_out;
  569: 
  570:     if (!PyArg_ParseTuple(args, (char *)"O:xmlOutputBufferClose", &pyobj_out))
  571:         return(NULL);
  572:     out = (xmlOutputBufferPtr) PyoutputBuffer_Get(pyobj_out);
  573:     /* Buffer may already have been destroyed elsewhere. This is harmless. */
  574:     if (out == NULL) {
  575: 	Py_INCREF(Py_None);
  576: 	return(Py_None);
  577:     }
  578: 
  579:     c_retval = xmlOutputBufferClose(out);
  580:     py_retval = libxml_intWrap((int) c_retval);
  581:     return(py_retval);
  582: }
  583: 
  584: static PyObject *
  585: libxml_xmlOutputBufferFlush(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
  586:     PyObject *py_retval;
  587:     int c_retval;
  588:     xmlOutputBufferPtr out;
  589:     PyObject *pyobj_out;
  590: 
  591:     if (!PyArg_ParseTuple(args, (char *)"O:xmlOutputBufferFlush", &pyobj_out))
  592:         return(NULL);
  593:     out = (xmlOutputBufferPtr) PyoutputBuffer_Get(pyobj_out);
  594: 
  595:     c_retval = xmlOutputBufferFlush(out);
  596:     py_retval = libxml_intWrap((int) c_retval);
  597:     return(py_retval);
  598: }
  599: 
  600: static PyObject *
  601: libxml_xmlSaveFileTo(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
  602:     PyObject *py_retval;
  603:     int c_retval;
  604:     xmlOutputBufferPtr buf;
  605:     PyObject *pyobj_buf;
  606:     xmlDocPtr cur;
  607:     PyObject *pyobj_cur;
  608:     char * encoding;
  609: 
  610:     if (!PyArg_ParseTuple(args, (char *)"OOz:xmlSaveFileTo", &pyobj_buf, &pyobj_cur, &encoding))
  611:         return(NULL);
  612:     buf = (xmlOutputBufferPtr) PyoutputBuffer_Get(pyobj_buf);
  613:     cur = (xmlDocPtr) PyxmlNode_Get(pyobj_cur);
  614: 
  615:     c_retval = xmlSaveFileTo(buf, cur, encoding);
  616: 	/* xmlSaveTo() freed the memory pointed to by buf, so record that in the
  617: 	 * Python object. */
  618:     ((PyoutputBuffer_Object *)(pyobj_buf))->obj = NULL;
  619:     py_retval = libxml_intWrap((int) c_retval);
  620:     return(py_retval);
  621: }
  622: 
  623: static PyObject *
  624: libxml_xmlSaveFormatFileTo(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
  625:     PyObject *py_retval;
  626:     int c_retval;
  627:     xmlOutputBufferPtr buf;
  628:     PyObject *pyobj_buf;
  629:     xmlDocPtr cur;
  630:     PyObject *pyobj_cur;
  631:     char * encoding;
  632:     int format;
  633: 
  634:     if (!PyArg_ParseTuple(args, (char *)"OOzi:xmlSaveFormatFileTo", &pyobj_buf, &pyobj_cur, &encoding, &format))
  635:         return(NULL);
  636:     buf = (xmlOutputBufferPtr) PyoutputBuffer_Get(pyobj_buf);
  637:     cur = (xmlDocPtr) PyxmlNode_Get(pyobj_cur);
  638: 
  639:     c_retval = xmlSaveFormatFileTo(buf, cur, encoding, format);
  640: 	/* xmlSaveFormatFileTo() freed the memory pointed to by buf, so record that
  641: 	 * in the Python object */
  642: 	((PyoutputBuffer_Object *)(pyobj_buf))->obj = NULL;
  643:     py_retval = libxml_intWrap((int) c_retval);
  644:     return(py_retval);
  645: }
  646: #endif /* LIBXML_OUTPUT_ENABLED */
  647: 
  648: 
  649: /**
  650:  * xmlParserInputBufferCreatePythonFile:
  651:  * @file:  a PyFile_Type
  652:  * @encoder:  the encoding converter or NULL
  653:  *
  654:  * Create a buffered output for the progressive saving to a PyFile_Type
  655:  * buffered C I/O
  656:  *
  657:  * Returns the new parser output or NULL
  658:  */
  659: static xmlParserInputBufferPtr
  660: xmlParserInputBufferCreatePythonFile(PyObject *file, 
  661: 	                        xmlCharEncoding encoding) {
  662:     xmlParserInputBufferPtr ret;
  663: 
  664:     if (file == NULL) return(NULL);
  665: 
  666:     ret = xmlAllocParserInputBuffer(encoding);
  667:     if (ret != NULL) {
  668:         ret->context = file;
  669: 	/* Py_INCREF(file); */
  670: 	ret->readcallback = xmlPythonFileRead;
  671: 	ret->closecallback = xmlPythonFileClose;
  672:     }
  673: 
  674:     return(ret);
  675: }
  676: 
  677: PyObject *
  678: libxml_xmlCreateInputBuffer(ATTRIBUTE_UNUSED PyObject *self, PyObject *args) {
  679:     PyObject *py_retval;
  680:     PyObject *file;
  681:     xmlChar  *encoding;
  682:     xmlCharEncoding enc = XML_CHAR_ENCODING_NONE;
  683:     xmlParserInputBufferPtr buffer;
  684: 
  685: 
  686:     if (!PyArg_ParseTuple(args, (char *)"Oz:xmlParserInputBufferCreate",
  687: 		&file, &encoding))
  688: 	return(NULL);
  689:     if ((encoding != NULL) && (encoding[0] != 0)) {
  690: 	enc = xmlParseCharEncoding((const char *) encoding);
  691:     }
  692:     buffer = xmlParserInputBufferCreatePythonFile(file, enc);
  693:     if (buffer == NULL)
  694: 	printf("libxml_xmlParserInputBufferCreate: buffer == NULL\n");
  695:     py_retval = libxml_xmlParserInputBufferPtrWrap(buffer);
  696:     return(py_retval);
  697: }
  698: 
  699: /************************************************************************
  700:  *									*
  701:  *		Providing the resolver at the Python level		*
  702:  *									*
  703:  ************************************************************************/
  704: 
  705: static xmlExternalEntityLoader defaultExternalEntityLoader = NULL;
  706: static PyObject *pythonExternalEntityLoaderObjext;
  707: 
  708: static xmlParserInputPtr
  709: pythonExternalEntityLoader(const char *URL, const char *ID,
  710: 			   xmlParserCtxtPtr ctxt) {
  711:     xmlParserInputPtr result = NULL;
  712:     if (pythonExternalEntityLoaderObjext != NULL) {
  713: 	PyObject *ret;
  714: 	PyObject *ctxtobj;
  715: 
  716: 	ctxtobj = libxml_xmlParserCtxtPtrWrap(ctxt);
  717: #ifdef DEBUG_LOADER
  718: 	printf("pythonExternalEntityLoader: ready to call\n");
  719: #endif
  720: 
  721: 	ret = PyObject_CallFunction(pythonExternalEntityLoaderObjext,
  722: 		      (char *) "(ssO)", URL, ID, ctxtobj);
  723: 	Py_XDECREF(ctxtobj);
  724: #ifdef DEBUG_LOADER
  725: 	printf("pythonExternalEntityLoader: result ");
  726: 	PyObject_Print(ret, stdout, 0);
  727: 	printf("\n");
  728: #endif
  729: 
  730: 	if (ret != NULL) {
  731: 	    if (PyObject_HasAttrString(ret, (char *) "read")) {
  732: 		xmlParserInputBufferPtr buf;
  733: 
  734: 		buf = xmlAllocParserInputBuffer(XML_CHAR_ENCODING_NONE);
  735: 		if (buf != NULL) {
  736: 		    buf->context = ret;
  737: 		    buf->readcallback = xmlPythonFileReadRaw;
  738: 		    buf->closecallback = xmlPythonFileCloseRaw;
  739: 		    result = xmlNewIOInputStream(ctxt, buf,
  740: 			                         XML_CHAR_ENCODING_NONE);
  741: 		}
  742: #if 0
  743: 	    } else {
  744: 		if (URL != NULL)
  745: 		    printf("pythonExternalEntityLoader: can't read %s\n",
  746: 		           URL);
  747: #endif
  748: 	    }
  749: 	    if (result == NULL) {
  750: 		Py_DECREF(ret);
  751: 	    } else if (URL != NULL) {
  752: 		result->filename = (char *) xmlStrdup((const xmlChar *)URL);
  753: 		result->directory = xmlParserGetDirectory((const char *) URL);
  754: 	    }
  755: 	}
  756:     }
  757:     if ((result == NULL) && (defaultExternalEntityLoader != NULL)) {
  758: 	result = defaultExternalEntityLoader(URL, ID, ctxt);
  759:     }
  760:     return(result);
  761: }
  762: 
  763: PyObject *
  764: libxml_xmlSetEntityLoader(ATTRIBUTE_UNUSED PyObject *self, PyObject *args) {
  765:     PyObject *py_retval;
  766:     PyObject *loader;
  767: 
  768:     if (!PyArg_ParseTuple(args, (char *)"O:libxml_xmlSetEntityLoader",
  769: 		&loader))
  770: 	return(NULL);
  771: 
  772:     if (!PyCallable_Check(loader)) {
  773: 	PyErr_SetString(PyExc_ValueError, "entity loader is not callable");
  774: 	return(NULL);
  775:     }
  776: 
  777: #ifdef DEBUG_LOADER
  778:     printf("libxml_xmlSetEntityLoader\n");
  779: #endif
  780:     if (defaultExternalEntityLoader == NULL) 
  781: 	defaultExternalEntityLoader = xmlGetExternalEntityLoader();
  782: 
  783:     Py_XDECREF(pythonExternalEntityLoaderObjext);
  784:     pythonExternalEntityLoaderObjext = loader;
  785:     Py_XINCREF(pythonExternalEntityLoaderObjext);
  786:     xmlSetExternalEntityLoader(pythonExternalEntityLoader);
  787: 
  788:     py_retval = PyLong_FromLong(0);
  789:     return(py_retval);
  790: }
  791: 
  792: /************************************************************************
  793:  *									*
  794:  *		Input callback registration				*
  795:  *									*
  796:  ************************************************************************/
  797: static PyObject *pythonInputOpenCallbackObject;
  798: static int pythonInputCallbackID = -1;
  799: 
  800: static int
  801: pythonInputMatchCallback(ATTRIBUTE_UNUSED const char *URI)
  802: {
  803:     /* Always return success, real decision whether URI is supported will be
  804:      * made in open callback.  */
  805:     return 1;
  806: }
  807: 
  808: static void *
  809: pythonInputOpenCallback(const char *URI)
  810: {
  811:     PyObject *ret;
  812: 
  813:     ret = PyObject_CallFunction(pythonInputOpenCallbackObject,
  814: 	    (char *)"s", URI);
  815:     if (ret == Py_None) {
  816: 	Py_DECREF(Py_None);
  817: 	return NULL;
  818:     }
  819:     return ret;
  820: }
  821: 
  822: PyObject *
  823: libxml_xmlRegisterInputCallback(ATTRIBUTE_UNUSED PyObject *self,
  824:                                 PyObject *args) {
  825:     PyObject *cb;
  826: 
  827:     if (!PyArg_ParseTuple(args,
  828: 		(const char *)"O:libxml_xmlRegisterInputCallback", &cb))
  829: 	return(NULL);
  830: 
  831:     if (!PyCallable_Check(cb)) {
  832: 	PyErr_SetString(PyExc_ValueError, "input callback is not callable");
  833: 	return(NULL);
  834:     }
  835: 
  836:     /* Python module registers a single callback and manages the list of
  837:      * all callbacks internally. This is necessitated by xmlInputMatchCallback
  838:      * API, which does not allow for passing of data objects to discriminate
  839:      * different Python methods.  */
  840:     if (pythonInputCallbackID == -1) {
  841: 	pythonInputCallbackID = xmlRegisterInputCallbacks(
  842: 		pythonInputMatchCallback, pythonInputOpenCallback,
  843: 		xmlPythonFileReadRaw, xmlPythonFileCloseRaw);
  844: 	if (pythonInputCallbackID == -1)
  845: 	    return PyErr_NoMemory();
  846: 	pythonInputOpenCallbackObject = cb;
  847: 	Py_INCREF(pythonInputOpenCallbackObject);
  848:     }
  849: 
  850:     Py_INCREF(Py_None);
  851:     return(Py_None);
  852: }
  853: 
  854: PyObject *
  855: libxml_xmlUnregisterInputCallback(ATTRIBUTE_UNUSED PyObject *self,
  856:                                 ATTRIBUTE_UNUSED PyObject *args) {
  857:     int ret;
  858: 
  859:     ret = xmlPopInputCallbacks();
  860:     if (pythonInputCallbackID != -1) {
  861: 	/* Assert that the right input callback was popped. libxml's API does not
  862: 	 * allow removal by ID, so all that could be done is an assert.  */
  863: 	if (pythonInputCallbackID == ret) {
  864: 	    pythonInputCallbackID = -1;
  865: 	    Py_DECREF(pythonInputOpenCallbackObject);
  866: 	    pythonInputOpenCallbackObject = NULL;
  867: 	} else {
  868: 	    PyErr_SetString(PyExc_AssertionError, "popped non-python input callback");
  869: 	    return(NULL);
  870: 	}
  871:     } else if (ret == -1) {
  872: 	/* No more callbacks to pop */
  873: 	PyErr_SetString(PyExc_IndexError, "no input callbacks to pop");
  874: 	return(NULL);
  875:     }
  876: 
  877:     Py_INCREF(Py_None);
  878:     return(Py_None);
  879: }
  880: 
  881: /************************************************************************
  882:  *									*
  883:  *		Handling SAX/xmllib/sgmlop callback interfaces		*
  884:  *									*
  885:  ************************************************************************/
  886: 
  887: static void
  888: pythonStartElement(void *user_data, const xmlChar * name,
  889:                    const xmlChar ** attrs)
  890: {
  891:     int i;
  892:     PyObject *handler;
  893:     PyObject *dict;
  894:     PyObject *attrname;
  895:     PyObject *attrvalue;
  896:     PyObject *result = NULL;
  897:     int type = 0;
  898: 
  899: #ifdef DEBUG_SAX
  900:     printf("pythonStartElement(%s) called\n", name);
  901: #endif
  902:     handler = (PyObject *) user_data;
  903:     if (PyObject_HasAttrString(handler, (char *) "startElement"))
  904:         type = 1;
  905:     else if (PyObject_HasAttrString(handler, (char *) "start"))
  906:         type = 2;
  907:     if (type != 0) {
  908:         /*
  909:          * the xmllib interface always generate a dictionnary,
  910:          * possibly empty
  911:          */
  912:         if ((attrs == NULL) && (type == 1)) {
  913:             Py_XINCREF(Py_None);
  914:             dict = Py_None;
  915:         } else if (attrs == NULL) {
  916:             dict = PyDict_New();
  917:         } else {
  918:             dict = PyDict_New();
  919:             for (i = 0; attrs[i] != NULL; i++) {
  920:                 attrname = PY_IMPORT_STRING((char *) attrs[i]);
  921:                 i++;
  922:                 if (attrs[i] != NULL) {
  923:                     attrvalue = PY_IMPORT_STRING((char *) attrs[i]);
  924:                 } else {
  925:                     Py_XINCREF(Py_None);
  926:                     attrvalue = Py_None;
  927:                 }
  928:                 PyDict_SetItem(dict, attrname, attrvalue);
  929: 		Py_DECREF(attrname);
  930: 		Py_DECREF(attrvalue);
  931:             }
  932:         }
  933: 
  934:         if (type == 1)
  935:             result = PyObject_CallMethod(handler, (char *) "startElement",
  936:                                          (char *) "sO", name, dict);
  937:         else if (type == 2)
  938:             result = PyObject_CallMethod(handler, (char *) "start",
  939:                                          (char *) "sO", name, dict);
  940:         if (PyErr_Occurred())
  941:             PyErr_Print();
  942:         Py_XDECREF(dict);
  943:         Py_XDECREF(result);
  944:     }
  945: }
  946: 
  947: static void
  948: pythonStartDocument(void *user_data)
  949: {
  950:     PyObject *handler;
  951:     PyObject *result;
  952: 
  953: #ifdef DEBUG_SAX
  954:     printf("pythonStartDocument() called\n");
  955: #endif
  956:     handler = (PyObject *) user_data;
  957:     if (PyObject_HasAttrString(handler, (char *) "startDocument")) {
  958:         result =
  959:             PyObject_CallMethod(handler, (char *) "startDocument", NULL);
  960:         if (PyErr_Occurred())
  961:             PyErr_Print();
  962:         Py_XDECREF(result);
  963:     }
  964: }
  965: 
  966: static void
  967: pythonEndDocument(void *user_data)
  968: {
  969:     PyObject *handler;
  970:     PyObject *result;
  971: 
  972: #ifdef DEBUG_SAX
  973:     printf("pythonEndDocument() called\n");
  974: #endif
  975:     handler = (PyObject *) user_data;
  976:     if (PyObject_HasAttrString(handler, (char *) "endDocument")) {
  977:         result =
  978:             PyObject_CallMethod(handler, (char *) "endDocument", NULL);
  979:         if (PyErr_Occurred())
  980:             PyErr_Print();
  981:         Py_XDECREF(result);
  982:     }
  983:     /*
  984:      * The reference to the handler is released there
  985:      */
  986:     Py_XDECREF(handler);
  987: }
  988: 
  989: static void
  990: pythonEndElement(void *user_data, const xmlChar * name)
  991: {
  992:     PyObject *handler;
  993:     PyObject *result;
  994: 
  995: #ifdef DEBUG_SAX
  996:     printf("pythonEndElement(%s) called\n", name);
  997: #endif
  998:     handler = (PyObject *) user_data;
  999:     if (PyObject_HasAttrString(handler, (char *) "endElement")) {
 1000:         result = PyObject_CallMethod(handler, (char *) "endElement",
 1001:                                      (char *) "s", name);
 1002:         if (PyErr_Occurred())
 1003:             PyErr_Print();
 1004:         Py_XDECREF(result);
 1005:     } else if (PyObject_HasAttrString(handler, (char *) "end")) {
 1006:         result = PyObject_CallMethod(handler, (char *) "end",
 1007:                                      (char *) "s", name);
 1008:         if (PyErr_Occurred())
 1009:             PyErr_Print();
 1010:         Py_XDECREF(result);
 1011:     }
 1012: }
 1013: 
 1014: static void
 1015: pythonReference(void *user_data, const xmlChar * name)
 1016: {
 1017:     PyObject *handler;
 1018:     PyObject *result;
 1019: 
 1020: #ifdef DEBUG_SAX
 1021:     printf("pythonReference(%s) called\n", name);
 1022: #endif
 1023:     handler = (PyObject *) user_data;
 1024:     if (PyObject_HasAttrString(handler, (char *) "reference")) {
 1025:         result = PyObject_CallMethod(handler, (char *) "reference",
 1026:                                      (char *) "s", name);
 1027:         if (PyErr_Occurred())
 1028:             PyErr_Print();
 1029:         Py_XDECREF(result);
 1030:     }
 1031: }
 1032: 
 1033: static void
 1034: pythonCharacters(void *user_data, const xmlChar * ch, int len)
 1035: {
 1036:     PyObject *handler;
 1037:     PyObject *result = NULL;
 1038:     int type = 0;
 1039: 
 1040: #ifdef DEBUG_SAX
 1041:     printf("pythonCharacters(%s, %d) called\n", ch, len);
 1042: #endif
 1043:     handler = (PyObject *) user_data;
 1044:     if (PyObject_HasAttrString(handler, (char *) "characters"))
 1045:         type = 1;
 1046:     else if (PyObject_HasAttrString(handler, (char *) "data"))
 1047:         type = 2;
 1048:     if (type != 0) {
 1049:         if (type == 1)
 1050:             result = PyObject_CallMethod(handler, (char *) "characters",
 1051:                                          (char *) "s#", ch, len);
 1052:         else if (type == 2)
 1053:             result = PyObject_CallMethod(handler, (char *) "data",
 1054:                                          (char *) "s#", ch, len);
 1055:         if (PyErr_Occurred())
 1056:             PyErr_Print();
 1057:         Py_XDECREF(result);
 1058:     }
 1059: }
 1060: 
 1061: static void
 1062: pythonIgnorableWhitespace(void *user_data, const xmlChar * ch, int len)
 1063: {
 1064:     PyObject *handler;
 1065:     PyObject *result = NULL;
 1066:     int type = 0;
 1067: 
 1068: #ifdef DEBUG_SAX
 1069:     printf("pythonIgnorableWhitespace(%s, %d) called\n", ch, len);
 1070: #endif
 1071:     handler = (PyObject *) user_data;
 1072:     if (PyObject_HasAttrString(handler, (char *) "ignorableWhitespace"))
 1073:         type = 1;
 1074:     else if (PyObject_HasAttrString(handler, (char *) "data"))
 1075:         type = 2;
 1076:     if (type != 0) {
 1077:         if (type == 1)
 1078:             result =
 1079:                 PyObject_CallMethod(handler,
 1080:                                     (char *) "ignorableWhitespace",
 1081:                                     (char *) "s#", ch, len);
 1082:         else if (type == 2)
 1083:             result =
 1084:                 PyObject_CallMethod(handler, (char *) "data",
 1085:                                     (char *) "s#", ch, len);
 1086:         Py_XDECREF(result);
 1087:     }
 1088: }
 1089: 
 1090: static void
 1091: pythonProcessingInstruction(void *user_data,
 1092:                             const xmlChar * target, const xmlChar * data)
 1093: {
 1094:     PyObject *handler;
 1095:     PyObject *result;
 1096: 
 1097: #ifdef DEBUG_SAX
 1098:     printf("pythonProcessingInstruction(%s, %s) called\n", target, data);
 1099: #endif
 1100:     handler = (PyObject *) user_data;
 1101:     if (PyObject_HasAttrString(handler, (char *) "processingInstruction")) {
 1102:         result = PyObject_CallMethod(handler, (char *)
 1103:                                      "processingInstruction",
 1104:                                      (char *) "ss", target, data);
 1105:         Py_XDECREF(result);
 1106:     }
 1107: }
 1108: 
 1109: static void
 1110: pythonComment(void *user_data, const xmlChar * value)
 1111: {
 1112:     PyObject *handler;
 1113:     PyObject *result;
 1114: 
 1115: #ifdef DEBUG_SAX
 1116:     printf("pythonComment(%s) called\n", value);
 1117: #endif
 1118:     handler = (PyObject *) user_data;
 1119:     if (PyObject_HasAttrString(handler, (char *) "comment")) {
 1120:         result =
 1121:             PyObject_CallMethod(handler, (char *) "comment", (char *) "s",
 1122:                                 value);
 1123:         if (PyErr_Occurred())
 1124:             PyErr_Print();
 1125:         Py_XDECREF(result);
 1126:     }
 1127: }
 1128: 
 1129: static void
 1130: pythonWarning(void *user_data, const char *msg, ...)
 1131: {
 1132:     PyObject *handler;
 1133:     PyObject *result;
 1134:     va_list args;
 1135:     char buf[1024];
 1136: 
 1137: #ifdef DEBUG_SAX
 1138:     printf("pythonWarning(%s) called\n", msg);
 1139: #endif
 1140:     handler = (PyObject *) user_data;
 1141:     if (PyObject_HasAttrString(handler, (char *) "warning")) {
 1142:         va_start(args, msg);
 1143:         vsnprintf(buf, 1023, msg, args);
 1144:         va_end(args);
 1145:         buf[1023] = 0;
 1146:         result =
 1147:             PyObject_CallMethod(handler, (char *) "warning", (char *) "s",
 1148:                                 buf);
 1149:         if (PyErr_Occurred())
 1150:             PyErr_Print();
 1151:         Py_XDECREF(result);
 1152:     }
 1153: }
 1154: 
 1155: static void
 1156: pythonError(void *user_data, const char *msg, ...)
 1157: {
 1158:     PyObject *handler;
 1159:     PyObject *result;
 1160:     va_list args;
 1161:     char buf[1024];
 1162: 
 1163: #ifdef DEBUG_SAX
 1164:     printf("pythonError(%s) called\n", msg);
 1165: #endif
 1166:     handler = (PyObject *) user_data;
 1167:     if (PyObject_HasAttrString(handler, (char *) "error")) {
 1168:         va_start(args, msg);
 1169:         vsnprintf(buf, 1023, msg, args);
 1170:         va_end(args);
 1171:         buf[1023] = 0;
 1172:         result =
 1173:             PyObject_CallMethod(handler, (char *) "error", (char *) "s",
 1174:                                 buf);
 1175:         if (PyErr_Occurred())
 1176:             PyErr_Print();
 1177:         Py_XDECREF(result);
 1178:     }
 1179: }
 1180: 
 1181: static void
 1182: pythonFatalError(void *user_data, const char *msg, ...)
 1183: {
 1184:     PyObject *handler;
 1185:     PyObject *result;
 1186:     va_list args;
 1187:     char buf[1024];
 1188: 
 1189: #ifdef DEBUG_SAX
 1190:     printf("pythonFatalError(%s) called\n", msg);
 1191: #endif
 1192:     handler = (PyObject *) user_data;
 1193:     if (PyObject_HasAttrString(handler, (char *) "fatalError")) {
 1194:         va_start(args, msg);
 1195:         vsnprintf(buf, 1023, msg, args);
 1196:         va_end(args);
 1197:         buf[1023] = 0;
 1198:         result =
 1199:             PyObject_CallMethod(handler, (char *) "fatalError",
 1200:                                 (char *) "s", buf);
 1201:         if (PyErr_Occurred())
 1202:             PyErr_Print();
 1203:         Py_XDECREF(result);
 1204:     }
 1205: }
 1206: 
 1207: static void
 1208: pythonCdataBlock(void *user_data, const xmlChar * ch, int len)
 1209: {
 1210:     PyObject *handler;
 1211:     PyObject *result = NULL;
 1212:     int type = 0;
 1213: 
 1214: #ifdef DEBUG_SAX
 1215:     printf("pythonCdataBlock(%s, %d) called\n", ch, len);
 1216: #endif
 1217:     handler = (PyObject *) user_data;
 1218:     if (PyObject_HasAttrString(handler, (char *) "cdataBlock"))
 1219:         type = 1;
 1220:     else if (PyObject_HasAttrString(handler, (char *) "cdata"))
 1221:         type = 2;
 1222:     if (type != 0) {
 1223:         if (type == 1)
 1224:             result =
 1225:                 PyObject_CallMethod(handler, (char *) "cdataBlock",
 1226:                                     (char *) "s#", ch, len);
 1227:         else if (type == 2)
 1228:             result =
 1229:                 PyObject_CallMethod(handler, (char *) "cdata",
 1230:                                     (char *) "s#", ch, len);
 1231:         if (PyErr_Occurred())
 1232:             PyErr_Print();
 1233:         Py_XDECREF(result);
 1234:     }
 1235: }
 1236: 
 1237: static void
 1238: pythonExternalSubset(void *user_data,
 1239:                      const xmlChar * name,
 1240:                      const xmlChar * externalID, const xmlChar * systemID)
 1241: {
 1242:     PyObject *handler;
 1243:     PyObject *result;
 1244: 
 1245: #ifdef DEBUG_SAX
 1246:     printf("pythonExternalSubset(%s, %s, %s) called\n",
 1247:            name, externalID, systemID);
 1248: #endif
 1249:     handler = (PyObject *) user_data;
 1250:     if (PyObject_HasAttrString(handler, (char *) "externalSubset")) {
 1251:         result =
 1252:             PyObject_CallMethod(handler, (char *) "externalSubset",
 1253:                                 (char *) "sss", name, externalID,
 1254:                                 systemID);
 1255:         Py_XDECREF(result);
 1256:     }
 1257: }
 1258: 
 1259: static void
 1260: pythonEntityDecl(void *user_data,
 1261:                  const xmlChar * name,
 1262:                  int type,
 1263:                  const xmlChar * publicId,
 1264:                  const xmlChar * systemId, xmlChar * content)
 1265: {
 1266:     PyObject *handler;
 1267:     PyObject *result;
 1268: 
 1269:     handler = (PyObject *) user_data;
 1270:     if (PyObject_HasAttrString(handler, (char *) "entityDecl")) {
 1271:         result = PyObject_CallMethod(handler, (char *) "entityDecl",
 1272:                                      (char *) "sisss", name, type,
 1273:                                      publicId, systemId, content);
 1274:         if (PyErr_Occurred())
 1275:             PyErr_Print();
 1276:         Py_XDECREF(result);
 1277:     }
 1278: }
 1279: 
 1280: 
 1281: 
 1282: static void
 1283: 
 1284: pythonNotationDecl(void *user_data,
 1285:                    const xmlChar * name,
 1286:                    const xmlChar * publicId, const xmlChar * systemId)
 1287: {
 1288:     PyObject *handler;
 1289:     PyObject *result;
 1290: 
 1291:     handler = (PyObject *) user_data;
 1292:     if (PyObject_HasAttrString(handler, (char *) "notationDecl")) {
 1293:         result = PyObject_CallMethod(handler, (char *) "notationDecl",
 1294:                                      (char *) "sss", name, publicId,
 1295:                                      systemId);
 1296:         if (PyErr_Occurred())
 1297:             PyErr_Print();
 1298:         Py_XDECREF(result);
 1299:     }
 1300: }
 1301: 
 1302: static void
 1303: pythonAttributeDecl(void *user_data,
 1304:                     const xmlChar * elem,
 1305:                     const xmlChar * name,
 1306:                     int type,
 1307:                     int def,
 1308:                     const xmlChar * defaultValue, xmlEnumerationPtr tree)
 1309: {
 1310:     PyObject *handler;
 1311:     PyObject *nameList;
 1312:     PyObject *newName;
 1313:     xmlEnumerationPtr node;
 1314:     PyObject *result;
 1315:     int count;
 1316: 
 1317:     handler = (PyObject *) user_data;
 1318:     if (PyObject_HasAttrString(handler, (char *) "attributeDecl")) {
 1319:         count = 0;
 1320:         for (node = tree; node != NULL; node = node->next) {
 1321:             count++;
 1322:         }
 1323:         nameList = PyList_New(count);
 1324:         count = 0;
 1325:         for (node = tree; node != NULL; node = node->next) {
 1326:             newName = PY_IMPORT_STRING((char *) node->name);
 1327:             PyList_SetItem(nameList, count, newName);
 1328: 	    Py_DECREF(newName);
 1329:             count++;
 1330:         }
 1331:         result = PyObject_CallMethod(handler, (char *) "attributeDecl",
 1332:                                      (char *) "ssiisO", elem, name, type,
 1333:                                      def, defaultValue, nameList);
 1334:         if (PyErr_Occurred())
 1335:             PyErr_Print();
 1336:         Py_XDECREF(nameList);
 1337:         Py_XDECREF(result);
 1338:     }
 1339: }
 1340: 
 1341: static void
 1342: pythonElementDecl(void *user_data,
 1343:                   const xmlChar * name,
 1344:                   int type, ATTRIBUTE_UNUSED xmlElementContentPtr content)
 1345: {
 1346:     PyObject *handler;
 1347:     PyObject *obj;
 1348:     PyObject *result;
 1349: 
 1350:     handler = (PyObject *) user_data;
 1351:     if (PyObject_HasAttrString(handler, (char *) "elementDecl")) {
 1352:         /* TODO: wrap in an elementContent object */
 1353:         printf
 1354:             ("pythonElementDecl: xmlElementContentPtr wrapper missing !\n");
 1355:         obj = Py_None;
 1356:         /* Py_XINCREF(Py_None); isn't the reference just borrowed ??? */
 1357:         result = PyObject_CallMethod(handler, (char *) "elementDecl",
 1358:                                      (char *) "siO", name, type, obj);
 1359:         if (PyErr_Occurred())
 1360:             PyErr_Print();
 1361:         Py_XDECREF(result);
 1362:     }
 1363: }
 1364: 
 1365: static void
 1366: pythonUnparsedEntityDecl(void *user_data,
 1367:                          const xmlChar * name,
 1368:                          const xmlChar * publicId,
 1369:                          const xmlChar * systemId,
 1370:                          const xmlChar * notationName)
 1371: {
 1372:     PyObject *handler;
 1373:     PyObject *result;
 1374: 
 1375:     handler = (PyObject *) user_data;
 1376:     if (PyObject_HasAttrString(handler, (char *) "unparsedEntityDecl")) {
 1377:         result =
 1378:             PyObject_CallMethod(handler, (char *) "unparsedEntityDecl",
 1379:                                 (char *) "ssss", name, publicId, systemId,
 1380:                                 notationName);
 1381:         if (PyErr_Occurred())
 1382:             PyErr_Print();
 1383:         Py_XDECREF(result);
 1384:     }
 1385: }
 1386: 
 1387: static void
 1388: pythonInternalSubset(void *user_data, const xmlChar * name,
 1389:                      const xmlChar * ExternalID, const xmlChar * SystemID)
 1390: {
 1391:     PyObject *handler;
 1392:     PyObject *result;
 1393: 
 1394: #ifdef DEBUG_SAX
 1395:     printf("pythonInternalSubset(%s, %s, %s) called\n",
 1396:            name, ExternalID, SystemID);
 1397: #endif
 1398:     handler = (PyObject *) user_data;
 1399:     if (PyObject_HasAttrString(handler, (char *) "internalSubset")) {
 1400:         result = PyObject_CallMethod(handler, (char *) "internalSubset",
 1401:                                      (char *) "sss", name, ExternalID,
 1402:                                      SystemID);
 1403:         if (PyErr_Occurred())
 1404:             PyErr_Print();
 1405:         Py_XDECREF(result);
 1406:     }
 1407: }
 1408: 
 1409: static xmlSAXHandler pythonSaxHandler = {
 1410:     pythonInternalSubset,
 1411:     NULL,                       /* TODO pythonIsStandalone, */
 1412:     NULL,                       /* TODO pythonHasInternalSubset, */
 1413:     NULL,                       /* TODO pythonHasExternalSubset, */
 1414:     NULL,                       /* TODO pythonResolveEntity, */
 1415:     NULL,                       /* TODO pythonGetEntity, */
 1416:     pythonEntityDecl,
 1417:     pythonNotationDecl,
 1418:     pythonAttributeDecl,
 1419:     pythonElementDecl,
 1420:     pythonUnparsedEntityDecl,
 1421:     NULL,                       /* OBSOLETED pythonSetDocumentLocator, */
 1422:     pythonStartDocument,
 1423:     pythonEndDocument,
 1424:     pythonStartElement,
 1425:     pythonEndElement,
 1426:     pythonReference,
 1427:     pythonCharacters,
 1428:     pythonIgnorableWhitespace,
 1429:     pythonProcessingInstruction,
 1430:     pythonComment,
 1431:     pythonWarning,
 1432:     pythonError,
 1433:     pythonFatalError,
 1434:     NULL,                       /* TODO pythonGetParameterEntity, */
 1435:     pythonCdataBlock,
 1436:     pythonExternalSubset,
 1437:     1,
 1438:     NULL,			/* TODO mograte to SAX2 */
 1439:     NULL,
 1440:     NULL,
 1441:     NULL
 1442: };
 1443: 
 1444: /************************************************************************
 1445:  *									*
 1446:  *		Handling of specific parser context			*
 1447:  *									*
 1448:  ************************************************************************/
 1449: 
 1450: PyObject *
 1451: libxml_xmlCreatePushParser(ATTRIBUTE_UNUSED PyObject * self,
 1452:                            PyObject * args)
 1453: {
 1454:     const char *chunk;
 1455:     int size;
 1456:     const char *URI;
 1457:     PyObject *pyobj_SAX = NULL;
 1458:     xmlSAXHandlerPtr SAX = NULL;
 1459:     xmlParserCtxtPtr ret;
 1460:     PyObject *pyret;
 1461: 
 1462:     if (!PyArg_ParseTuple
 1463:         (args, (char *) "Oziz:xmlCreatePushParser", &pyobj_SAX, &chunk,
 1464:          &size, &URI))
 1465:         return (NULL);
 1466: 
 1467: #ifdef DEBUG
 1468:     printf("libxml_xmlCreatePushParser(%p, %s, %d, %s) called\n",
 1469:            pyobj_SAX, chunk, size, URI);
 1470: #endif
 1471:     if (pyobj_SAX != Py_None) {
 1472:         SAX = &pythonSaxHandler;
 1473:         Py_INCREF(pyobj_SAX);
 1474:         /* The reference is released in pythonEndDocument() */
 1475:     }
 1476:     ret = xmlCreatePushParserCtxt(SAX, pyobj_SAX, chunk, size, URI);
 1477:     pyret = libxml_xmlParserCtxtPtrWrap(ret);
 1478:     return (pyret);
 1479: }
 1480: 
 1481: PyObject *
 1482: libxml_htmlCreatePushParser(ATTRIBUTE_UNUSED PyObject * self,
 1483:                             PyObject * args)
 1484: {
 1485: #ifdef LIBXML_HTML_ENABLED
 1486:     const char *chunk;
 1487:     int size;
 1488:     const char *URI;
 1489:     PyObject *pyobj_SAX = NULL;
 1490:     xmlSAXHandlerPtr SAX = NULL;
 1491:     xmlParserCtxtPtr ret;
 1492:     PyObject *pyret;
 1493: 
 1494:     if (!PyArg_ParseTuple
 1495:         (args, (char *) "Oziz:htmlCreatePushParser", &pyobj_SAX, &chunk,
 1496:          &size, &URI))
 1497:         return (NULL);
 1498: 
 1499: #ifdef DEBUG
 1500:     printf("libxml_htmlCreatePushParser(%p, %s, %d, %s) called\n",
 1501:            pyobj_SAX, chunk, size, URI);
 1502: #endif
 1503:     if (pyobj_SAX != Py_None) {
 1504:         SAX = &pythonSaxHandler;
 1505:         Py_INCREF(pyobj_SAX);
 1506:         /* The reference is released in pythonEndDocument() */
 1507:     }
 1508:     ret = htmlCreatePushParserCtxt(SAX, pyobj_SAX, chunk, size, URI,
 1509:                                    XML_CHAR_ENCODING_NONE);
 1510:     pyret = libxml_xmlParserCtxtPtrWrap(ret);
 1511:     return (pyret);
 1512: #else
 1513:     Py_INCREF(Py_None);
 1514:     return (Py_None);
 1515: #endif /* LIBXML_HTML_ENABLED */
 1516: }
 1517: 
 1518: PyObject *
 1519: libxml_xmlSAXParseFile(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 1520: {
 1521: #ifdef LIBXML_SAX1_ENABLED
 1522:     int recover;
 1523:     const char *URI;
 1524:     PyObject *pyobj_SAX = NULL;
 1525:     xmlSAXHandlerPtr SAX = NULL;
 1526: 
 1527:     if (!PyArg_ParseTuple(args, (char *) "Osi:xmlSAXParseFile", &pyobj_SAX,
 1528:                           &URI, &recover))
 1529:         return (NULL);
 1530: 
 1531: #ifdef DEBUG
 1532:     printf("libxml_xmlSAXParseFile(%p, %s, %d) called\n",
 1533:            pyobj_SAX, URI, recover);
 1534: #endif
 1535:     if (pyobj_SAX == Py_None) {
 1536:         Py_INCREF(Py_None);
 1537:         return (Py_None);
 1538:     }
 1539:     SAX = &pythonSaxHandler;
 1540:     Py_INCREF(pyobj_SAX);
 1541:     /* The reference is released in pythonEndDocument() */
 1542:     xmlSAXUserParseFile(SAX, pyobj_SAX, URI);
 1543: #endif /* LIBXML_SAX1_ENABLED */
 1544:     Py_INCREF(Py_None);
 1545:     return (Py_None);
 1546: }
 1547: 
 1548: PyObject *
 1549: libxml_htmlSAXParseFile(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 1550: {
 1551: #ifdef LIBXML_HTML_ENABLED
 1552:     const char *URI;
 1553:     const char *encoding;
 1554:     PyObject *pyobj_SAX = NULL;
 1555:     xmlSAXHandlerPtr SAX = NULL;
 1556: 
 1557:     if (!PyArg_ParseTuple
 1558:         (args, (char *) "Osz:htmlSAXParseFile", &pyobj_SAX, &URI,
 1559:          &encoding))
 1560:         return (NULL);
 1561: 
 1562: #ifdef DEBUG
 1563:     printf("libxml_htmlSAXParseFile(%p, %s, %s) called\n",
 1564:            pyobj_SAX, URI, encoding);
 1565: #endif
 1566:     if (pyobj_SAX == Py_None) {
 1567:         Py_INCREF(Py_None);
 1568:         return (Py_None);
 1569:     }
 1570:     SAX = &pythonSaxHandler;
 1571:     Py_INCREF(pyobj_SAX);
 1572:     /* The reference is released in pythonEndDocument() */
 1573:     htmlSAXParseFile(URI, encoding, SAX, pyobj_SAX);
 1574:     Py_INCREF(Py_None);
 1575:     return (Py_None);
 1576: #else
 1577:     Py_INCREF(Py_None);
 1578:     return (Py_None);
 1579: #endif /* LIBXML_HTML_ENABLED */
 1580: }
 1581: 
 1582: /************************************************************************
 1583:  *									*
 1584:  *			Error message callback				*
 1585:  *									*
 1586:  ************************************************************************/
 1587: 
 1588: static PyObject *libxml_xmlPythonErrorFuncHandler = NULL;
 1589: static PyObject *libxml_xmlPythonErrorFuncCtxt = NULL;
 1590: 
 1591: /* helper to build a xmlMalloc'ed string from a format and va_list */
 1592: /* 
 1593:  * disabled the loop, the repeated call to vsnprintf without reset of ap
 1594:  * in case the initial buffer was too small segfaulted on x86_64
 1595:  * we now directly vsnprintf on a large buffer.
 1596:  */
 1597: static char *
 1598: libxml_buildMessage(const char *msg, va_list ap)
 1599: {
 1600:     int chars;
 1601:     char *str;
 1602: 
 1603:     str = (char *) xmlMalloc(1000);
 1604:     if (str == NULL)
 1605:         return NULL;
 1606: 
 1607:     chars = vsnprintf(str, 999, msg, ap);
 1608:     if (chars >= 998)
 1609:         str[999] = 0;
 1610: 
 1611:     return str;
 1612: }
 1613: 
 1614: static void
 1615: libxml_xmlErrorFuncHandler(ATTRIBUTE_UNUSED void *ctx, const char *msg,
 1616:                            ...)
 1617: {
 1618:     va_list ap;
 1619:     PyObject *list;
 1620:     PyObject *message;
 1621:     PyObject *result;
 1622:     char str[1000];
 1623: 
 1624: #ifdef DEBUG_ERROR
 1625:     printf("libxml_xmlErrorFuncHandler(%p, %s, ...) called\n", ctx, msg);
 1626: #endif
 1627: 
 1628: 
 1629:     if (libxml_xmlPythonErrorFuncHandler == NULL) {
 1630:         va_start(ap, msg);
 1631:         vfprintf(stderr, msg, ap);
 1632:         va_end(ap);
 1633:     } else {
 1634:         va_start(ap, msg);
 1635:         if (vsnprintf(str, 999, msg, ap) >= 998)
 1636: 	    str[999] = 0;
 1637:         va_end(ap);
 1638: 
 1639:         list = PyTuple_New(2);
 1640:         PyTuple_SetItem(list, 0, libxml_xmlPythonErrorFuncCtxt);
 1641:         Py_XINCREF(libxml_xmlPythonErrorFuncCtxt);
 1642:         message = libxml_charPtrConstWrap(str);
 1643:         PyTuple_SetItem(list, 1, message);
 1644:         result = PyEval_CallObject(libxml_xmlPythonErrorFuncHandler, list);
 1645:         Py_XDECREF(list);
 1646:         Py_XDECREF(result);
 1647:     }
 1648: }
 1649: 
 1650: static void
 1651: libxml_xmlErrorInitialize(void)
 1652: {
 1653: #ifdef DEBUG_ERROR
 1654:     printf("libxml_xmlErrorInitialize() called\n");
 1655: #endif
 1656:     xmlSetGenericErrorFunc(NULL, libxml_xmlErrorFuncHandler);
 1657:     xmlThrDefSetGenericErrorFunc(NULL, libxml_xmlErrorFuncHandler);
 1658: }
 1659: 
 1660: static PyObject *
 1661: libxml_xmlRegisterErrorHandler(ATTRIBUTE_UNUSED PyObject * self,
 1662:                                PyObject * args)
 1663: {
 1664:     PyObject *py_retval;
 1665:     PyObject *pyobj_f;
 1666:     PyObject *pyobj_ctx;
 1667: 
 1668:     if (!PyArg_ParseTuple
 1669:         (args, (char *) "OO:xmlRegisterErrorHandler", &pyobj_f,
 1670:          &pyobj_ctx))
 1671:         return (NULL);
 1672: 
 1673: #ifdef DEBUG_ERROR
 1674:     printf("libxml_xmlRegisterErrorHandler(%p, %p) called\n", pyobj_ctx,
 1675:            pyobj_f);
 1676: #endif
 1677: 
 1678:     if (libxml_xmlPythonErrorFuncHandler != NULL) {
 1679:         Py_XDECREF(libxml_xmlPythonErrorFuncHandler);
 1680:     }
 1681:     if (libxml_xmlPythonErrorFuncCtxt != NULL) {
 1682:         Py_XDECREF(libxml_xmlPythonErrorFuncCtxt);
 1683:     }
 1684: 
 1685:     Py_XINCREF(pyobj_ctx);
 1686:     Py_XINCREF(pyobj_f);
 1687: 
 1688:     /* TODO: check f is a function ! */
 1689:     libxml_xmlPythonErrorFuncHandler = pyobj_f;
 1690:     libxml_xmlPythonErrorFuncCtxt = pyobj_ctx;
 1691: 
 1692:     py_retval = libxml_intWrap(1);
 1693:     return (py_retval);
 1694: }
 1695: 
 1696: 
 1697: /************************************************************************
 1698:  *									*
 1699:  *                      Per parserCtxt error handler                    *
 1700:  *									*
 1701:  ************************************************************************/
 1702: 
 1703: typedef struct 
 1704: {
 1705:     PyObject *f;
 1706:     PyObject *arg;
 1707: } xmlParserCtxtPyCtxt;
 1708: typedef xmlParserCtxtPyCtxt *xmlParserCtxtPyCtxtPtr;
 1709: 
 1710: static void
 1711: libxml_xmlParserCtxtGenericErrorFuncHandler(void *ctx, int severity, char *str) 
 1712: {
 1713:     PyObject *list;
 1714:     PyObject *result;
 1715:     xmlParserCtxtPtr ctxt;
 1716:     xmlParserCtxtPyCtxtPtr pyCtxt;
 1717:     
 1718: #ifdef DEBUG_ERROR
 1719:     printf("libxml_xmlParserCtxtGenericErrorFuncHandler(%p, %s, ...) called\n", ctx, str);
 1720: #endif
 1721: 
 1722:     ctxt = (xmlParserCtxtPtr)ctx;
 1723:     pyCtxt = (xmlParserCtxtPyCtxtPtr)ctxt->_private;
 1724: 
 1725:     list = PyTuple_New(4);
 1726:     PyTuple_SetItem(list, 0, pyCtxt->arg);
 1727:     Py_XINCREF(pyCtxt->arg);
 1728:     PyTuple_SetItem(list, 1, libxml_charPtrWrap(str));
 1729:     PyTuple_SetItem(list, 2, libxml_intWrap(severity));
 1730:     PyTuple_SetItem(list, 3, Py_None);
 1731:     Py_INCREF(Py_None);
 1732:     result = PyEval_CallObject(pyCtxt->f, list);
 1733:     if (result == NULL) 
 1734:     {
 1735: 	/* TODO: manage for the exception to be propagated... */
 1736: 	PyErr_Print();
 1737:     }
 1738:     Py_XDECREF(list);
 1739:     Py_XDECREF(result);
 1740: }
 1741: 
 1742: static void 
 1743: libxml_xmlParserCtxtErrorFuncHandler(void *ctx, const char *msg, ...) 
 1744: {
 1745:     va_list ap;
 1746: 
 1747:     va_start(ap, msg);
 1748:     libxml_xmlParserCtxtGenericErrorFuncHandler(ctx,XML_PARSER_SEVERITY_ERROR,libxml_buildMessage(msg,ap));
 1749:     va_end(ap);
 1750: }
 1751: 
 1752: static void 
 1753: libxml_xmlParserCtxtWarningFuncHandler(void *ctx, const char *msg, ...) 
 1754: {
 1755:     va_list ap;
 1756: 
 1757:     va_start(ap, msg);
 1758:     libxml_xmlParserCtxtGenericErrorFuncHandler(ctx,XML_PARSER_SEVERITY_WARNING,libxml_buildMessage(msg,ap));
 1759:     va_end(ap);
 1760: }
 1761: 
 1762: static void 
 1763: libxml_xmlParserCtxtValidityErrorFuncHandler(void *ctx, const char *msg, ...) 
 1764: {
 1765:     va_list ap;
 1766: 
 1767:     va_start(ap, msg);
 1768:     libxml_xmlParserCtxtGenericErrorFuncHandler(ctx,XML_PARSER_SEVERITY_VALIDITY_ERROR,libxml_buildMessage(msg,ap));
 1769:     va_end(ap);
 1770: }
 1771: 
 1772: static void 
 1773: libxml_xmlParserCtxtValidityWarningFuncHandler(void *ctx, const char *msg, ...) 
 1774: {
 1775:     va_list ap;
 1776: 
 1777:     va_start(ap, msg);
 1778:     libxml_xmlParserCtxtGenericErrorFuncHandler(ctx,XML_PARSER_SEVERITY_VALIDITY_WARNING,libxml_buildMessage(msg,ap));
 1779:     va_end(ap);
 1780: }
 1781: 
 1782: static PyObject *
 1783: libxml_xmlParserCtxtSetErrorHandler(ATTRIBUTE_UNUSED PyObject *self, PyObject *args) 
 1784: {
 1785:     PyObject *py_retval;
 1786:     xmlParserCtxtPtr ctxt;
 1787:     xmlParserCtxtPyCtxtPtr pyCtxt;
 1788:     PyObject *pyobj_ctxt;
 1789:     PyObject *pyobj_f;
 1790:     PyObject *pyobj_arg;
 1791: 
 1792:     if (!PyArg_ParseTuple(args, (char *)"OOO:xmlParserCtxtSetErrorHandler",
 1793: 		          &pyobj_ctxt, &pyobj_f, &pyobj_arg))
 1794:         return(NULL);
 1795:     ctxt = (xmlParserCtxtPtr) PyparserCtxt_Get(pyobj_ctxt);
 1796:     if (ctxt->_private == NULL) {
 1797: 	pyCtxt = xmlMalloc(sizeof(xmlParserCtxtPyCtxt));
 1798: 	if (pyCtxt == NULL) {
 1799: 	    py_retval = libxml_intWrap(-1);
 1800: 	    return(py_retval);
 1801: 	}
 1802: 	memset(pyCtxt,0,sizeof(xmlParserCtxtPyCtxt));
 1803: 	ctxt->_private = pyCtxt;
 1804:     }
 1805:     else {
 1806: 	pyCtxt = (xmlParserCtxtPyCtxtPtr)ctxt->_private;
 1807:     }
 1808:     /* TODO: check f is a function ! */
 1809:     Py_XDECREF(pyCtxt->f);
 1810:     Py_XINCREF(pyobj_f);
 1811:     pyCtxt->f = pyobj_f;
 1812:     Py_XDECREF(pyCtxt->arg);
 1813:     Py_XINCREF(pyobj_arg);
 1814:     pyCtxt->arg = pyobj_arg;
 1815: 
 1816:     if (pyobj_f != Py_None) {
 1817: 	ctxt->sax->error = libxml_xmlParserCtxtErrorFuncHandler;
 1818: 	ctxt->sax->warning = libxml_xmlParserCtxtWarningFuncHandler;
 1819: 	ctxt->vctxt.error = libxml_xmlParserCtxtValidityErrorFuncHandler;
 1820: 	ctxt->vctxt.warning = libxml_xmlParserCtxtValidityWarningFuncHandler;
 1821:     }
 1822:     else {
 1823: 	ctxt->sax->error = xmlParserError;
 1824: 	ctxt->vctxt.error = xmlParserValidityError;
 1825: 	ctxt->sax->warning = xmlParserWarning;
 1826: 	ctxt->vctxt.warning = xmlParserValidityWarning;
 1827:     }
 1828: 
 1829:     py_retval = libxml_intWrap(1);
 1830:     return(py_retval);
 1831: }
 1832: 
 1833: static PyObject *
 1834: libxml_xmlParserCtxtGetErrorHandler(ATTRIBUTE_UNUSED PyObject *self, PyObject *args) 
 1835: {
 1836:     PyObject *py_retval;
 1837:     xmlParserCtxtPtr ctxt;
 1838:     xmlParserCtxtPyCtxtPtr pyCtxt;
 1839:     PyObject *pyobj_ctxt;
 1840: 
 1841:     if (!PyArg_ParseTuple(args, (char *)"O:xmlParserCtxtGetErrorHandler",
 1842: 		          &pyobj_ctxt))
 1843:         return(NULL);
 1844:     ctxt = (xmlParserCtxtPtr) PyparserCtxt_Get(pyobj_ctxt);
 1845:     py_retval = PyTuple_New(2);
 1846:     if (ctxt->_private != NULL) {
 1847: 	pyCtxt = (xmlParserCtxtPyCtxtPtr)ctxt->_private;
 1848: 
 1849: 	PyTuple_SetItem(py_retval, 0, pyCtxt->f);
 1850: 	Py_XINCREF(pyCtxt->f);
 1851: 	PyTuple_SetItem(py_retval, 1, pyCtxt->arg);
 1852: 	Py_XINCREF(pyCtxt->arg);
 1853:     }
 1854:     else {
 1855: 	/* no python error handler registered */
 1856: 	PyTuple_SetItem(py_retval, 0, Py_None);
 1857: 	Py_XINCREF(Py_None);
 1858: 	PyTuple_SetItem(py_retval, 1, Py_None);
 1859: 	Py_XINCREF(Py_None);
 1860:     }
 1861:     return(py_retval);
 1862: }
 1863: 
 1864: static PyObject *
 1865: libxml_xmlFreeParserCtxt(ATTRIBUTE_UNUSED PyObject *self, PyObject *args) {
 1866:     xmlParserCtxtPtr ctxt;
 1867:     PyObject *pyobj_ctxt;
 1868:     xmlParserCtxtPyCtxtPtr pyCtxt;
 1869: 
 1870:     if (!PyArg_ParseTuple(args, (char *)"O:xmlFreeParserCtxt", &pyobj_ctxt))
 1871:         return(NULL);
 1872:     ctxt = (xmlParserCtxtPtr) PyparserCtxt_Get(pyobj_ctxt);
 1873: 
 1874:     if (ctxt != NULL) {
 1875: 	pyCtxt = (xmlParserCtxtPyCtxtPtr)((xmlParserCtxtPtr)ctxt)->_private;
 1876: 	if (pyCtxt) {
 1877: 	    Py_XDECREF(pyCtxt->f);
 1878: 	    Py_XDECREF(pyCtxt->arg);
 1879: 	    xmlFree(pyCtxt);
 1880: 	}
 1881: 	xmlFreeParserCtxt(ctxt);
 1882:     }
 1883: 
 1884:     Py_INCREF(Py_None);
 1885:     return(Py_None);
 1886: }
 1887: 
 1888: /***
 1889:  * xmlValidCtxt stuff
 1890:  */
 1891: 
 1892: typedef struct 
 1893: {
 1894:     PyObject *warn;
 1895:     PyObject *error;
 1896:     PyObject *arg;
 1897: } xmlValidCtxtPyCtxt;
 1898: typedef xmlValidCtxtPyCtxt *xmlValidCtxtPyCtxtPtr;
 1899: 
 1900: static void
 1901: libxml_xmlValidCtxtGenericErrorFuncHandler(void *ctx, ATTRIBUTE_UNUSED int severity, char *str)
 1902: {
 1903:     PyObject *list;
 1904:     PyObject *result;
 1905:     xmlValidCtxtPyCtxtPtr pyCtxt;
 1906:     
 1907: #ifdef DEBUG_ERROR
 1908:     printf("libxml_xmlValidCtxtGenericErrorFuncHandler(%p, %d, %s, ...) called\n", ctx, severity, str);
 1909: #endif
 1910: 
 1911:     pyCtxt = (xmlValidCtxtPyCtxtPtr)ctx;
 1912:     
 1913:     list = PyTuple_New(2);
 1914:     PyTuple_SetItem(list, 0, libxml_charPtrWrap(str));
 1915:     PyTuple_SetItem(list, 1, pyCtxt->arg);
 1916:     Py_XINCREF(pyCtxt->arg);
 1917:     result = PyEval_CallObject(pyCtxt->error, list);
 1918:     if (result == NULL) 
 1919:     {
 1920: 	/* TODO: manage for the exception to be propagated... */
 1921: 	PyErr_Print();
 1922:     }
 1923:     Py_XDECREF(list);
 1924:     Py_XDECREF(result);
 1925: }
 1926: 
 1927: static void
 1928: libxml_xmlValidCtxtGenericWarningFuncHandler(void *ctx, ATTRIBUTE_UNUSED int severity, char *str)
 1929: {
 1930:     PyObject *list;
 1931:     PyObject *result;
 1932:     xmlValidCtxtPyCtxtPtr pyCtxt;
 1933:     
 1934: #ifdef DEBUG_ERROR
 1935:     printf("libxml_xmlValidCtxtGenericWarningFuncHandler(%p, %d, %s, ...) called\n", ctx, severity, str);
 1936: #endif
 1937: 
 1938:     pyCtxt = (xmlValidCtxtPyCtxtPtr)ctx;
 1939: 
 1940:     list = PyTuple_New(2);
 1941:     PyTuple_SetItem(list, 0, libxml_charPtrWrap(str));
 1942:     PyTuple_SetItem(list, 1, pyCtxt->arg);
 1943:     Py_XINCREF(pyCtxt->arg);
 1944:     result = PyEval_CallObject(pyCtxt->warn, list);
 1945:     if (result == NULL) 
 1946:     {
 1947: 	/* TODO: manage for the exception to be propagated... */
 1948: 	PyErr_Print();
 1949:     }
 1950:     Py_XDECREF(list);
 1951:     Py_XDECREF(result);
 1952: }
 1953: 
 1954: static void 
 1955: libxml_xmlValidCtxtErrorFuncHandler(void *ctx, const char *msg, ...) 
 1956: {
 1957:     va_list ap;
 1958: 
 1959:     va_start(ap, msg);
 1960:     libxml_xmlValidCtxtGenericErrorFuncHandler(ctx,XML_PARSER_SEVERITY_VALIDITY_ERROR,libxml_buildMessage(msg,ap));
 1961:     va_end(ap);
 1962: }
 1963: 
 1964: static void 
 1965: libxml_xmlValidCtxtWarningFuncHandler(void *ctx, const char *msg, ...) 
 1966: {
 1967:     va_list ap;
 1968: 
 1969:     va_start(ap, msg);
 1970:     libxml_xmlValidCtxtGenericWarningFuncHandler(ctx,XML_PARSER_SEVERITY_VALIDITY_WARNING,libxml_buildMessage(msg,ap));
 1971:     va_end(ap);
 1972: }
 1973: 
 1974: static PyObject *
 1975: libxml_xmlSetValidErrors(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 1976: {
 1977:     PyObject *py_retval;
 1978:     PyObject *pyobj_error;
 1979:     PyObject *pyobj_warn;
 1980:     PyObject *pyobj_ctx;
 1981:     PyObject *pyobj_arg = Py_None;
 1982:     xmlValidCtxtPtr ctxt;
 1983:     xmlValidCtxtPyCtxtPtr pyCtxt;
 1984: 
 1985:     if (!PyArg_ParseTuple
 1986:         (args, (char *) "OOO|O:xmlSetValidErrors", &pyobj_ctx, &pyobj_error, &pyobj_warn, &pyobj_arg))
 1987:         return (NULL);
 1988: 
 1989: #ifdef DEBUG_ERROR
 1990:     printf("libxml_xmlSetValidErrors(%p, %p, %p) called\n", pyobj_ctx, pyobj_error, pyobj_warn);
 1991: #endif
 1992: 
 1993:     ctxt = PyValidCtxt_Get(pyobj_ctx);
 1994:     pyCtxt = xmlMalloc(sizeof(xmlValidCtxtPyCtxt));
 1995:     if (pyCtxt == NULL) {
 1996:             py_retval = libxml_intWrap(-1);
 1997:             return(py_retval);
 1998:     }
 1999:     memset(pyCtxt, 0, sizeof(xmlValidCtxtPyCtxt));
 2000: 
 2001:     
 2002:     /* TODO: check warn and error is a function ! */
 2003:     Py_XDECREF(pyCtxt->error);
 2004:     Py_XINCREF(pyobj_error);
 2005:     pyCtxt->error = pyobj_error;
 2006:     
 2007:     Py_XDECREF(pyCtxt->warn);
 2008:     Py_XINCREF(pyobj_warn);
 2009:     pyCtxt->warn = pyobj_warn;
 2010:     
 2011:     Py_XDECREF(pyCtxt->arg);
 2012:     Py_XINCREF(pyobj_arg);
 2013:     pyCtxt->arg = pyobj_arg;
 2014: 
 2015:     ctxt->error = libxml_xmlValidCtxtErrorFuncHandler;
 2016:     ctxt->warning = libxml_xmlValidCtxtWarningFuncHandler;
 2017:     ctxt->userData = pyCtxt;
 2018: 
 2019:     py_retval = libxml_intWrap(1);
 2020:     return (py_retval);
 2021: }
 2022: 
 2023: 
 2024: static PyObject *
 2025: libxml_xmlFreeValidCtxt(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
 2026:     xmlValidCtxtPtr cur;
 2027:     xmlValidCtxtPyCtxtPtr pyCtxt;
 2028:     PyObject *pyobj_cur;
 2029: 
 2030:     if (!PyArg_ParseTuple(args, (char *)"O:xmlFreeValidCtxt", &pyobj_cur))
 2031:         return(NULL);
 2032:     cur = (xmlValidCtxtPtr) PyValidCtxt_Get(pyobj_cur);
 2033: 
 2034:     pyCtxt = (xmlValidCtxtPyCtxtPtr)(cur->userData);
 2035:     if (pyCtxt != NULL)
 2036:     {
 2037:             Py_XDECREF(pyCtxt->error);
 2038:             Py_XDECREF(pyCtxt->warn);
 2039:             Py_XDECREF(pyCtxt->arg);
 2040:             xmlFree(pyCtxt);
 2041:     }
 2042: 
 2043:     xmlFreeValidCtxt(cur);
 2044:     Py_INCREF(Py_None);
 2045:     return(Py_None);
 2046: }
 2047: 
 2048: #ifdef LIBXML_READER_ENABLED
 2049: /************************************************************************
 2050:  *									*
 2051:  *                      Per xmlTextReader error handler                 *
 2052:  *									*
 2053:  ************************************************************************/
 2054: 
 2055: typedef struct 
 2056: {
 2057:     PyObject *f;
 2058:     PyObject *arg;
 2059: } xmlTextReaderPyCtxt;
 2060: typedef xmlTextReaderPyCtxt *xmlTextReaderPyCtxtPtr;
 2061: 
 2062: static void 
 2063: libxml_xmlTextReaderErrorCallback(void *arg, 
 2064: 				  const char *msg,
 2065: 				  int severity,
 2066: 				  xmlTextReaderLocatorPtr locator)
 2067: {
 2068:     xmlTextReaderPyCtxt *pyCtxt = (xmlTextReaderPyCtxt *)arg;
 2069:     PyObject *list;
 2070:     PyObject *result;
 2071:     
 2072:     list = PyTuple_New(4);
 2073:     PyTuple_SetItem(list, 0, pyCtxt->arg);
 2074:     Py_XINCREF(pyCtxt->arg);
 2075:     PyTuple_SetItem(list, 1, libxml_charPtrConstWrap(msg));
 2076:     PyTuple_SetItem(list, 2, libxml_intWrap(severity));
 2077:     PyTuple_SetItem(list, 3, libxml_xmlTextReaderLocatorPtrWrap(locator));
 2078:     result = PyEval_CallObject(pyCtxt->f, list);
 2079:     if (result == NULL)
 2080:     {
 2081: 	/* TODO: manage for the exception to be propagated... */
 2082: 	PyErr_Print();
 2083:     }
 2084:     Py_XDECREF(list);
 2085:     Py_XDECREF(result);
 2086: }
 2087: 
 2088: static PyObject *
 2089: libxml_xmlTextReaderSetErrorHandler(ATTRIBUTE_UNUSED PyObject *self, PyObject *args)
 2090: {
 2091:     xmlTextReaderPtr reader;
 2092:     xmlTextReaderPyCtxtPtr pyCtxt;
 2093:     xmlTextReaderErrorFunc f;
 2094:     void *arg;
 2095:     PyObject *pyobj_reader;
 2096:     PyObject *pyobj_f;
 2097:     PyObject *pyobj_arg;
 2098:     PyObject *py_retval;
 2099: 
 2100:     if (!PyArg_ParseTuple(args, (char *)"OOO:xmlTextReaderSetErrorHandler", &pyobj_reader, &pyobj_f, &pyobj_arg))
 2101:         return(NULL);
 2102:     reader = (xmlTextReaderPtr) PyxmlTextReader_Get(pyobj_reader);
 2103:     /* clear previous error handler */
 2104:     xmlTextReaderGetErrorHandler(reader,&f,&arg);
 2105:     if (arg != NULL) {
 2106: 	if (f == (xmlTextReaderErrorFunc) libxml_xmlTextReaderErrorCallback) {
 2107: 	    /* ok, it's our error handler! */
 2108: 	    pyCtxt = (xmlTextReaderPyCtxtPtr)arg;
 2109: 	    Py_XDECREF(pyCtxt->f);
 2110: 	    Py_XDECREF(pyCtxt->arg);
 2111: 	    xmlFree(pyCtxt);
 2112: 	}
 2113: 	else {
 2114: 	    /* 
 2115: 	     * there already an arg, and it's not ours,
 2116: 	     * there is definitely something wrong going on here...
 2117: 	     * we don't know how to free it, so we bail out... 
 2118: 	     */
 2119: 	    py_retval = libxml_intWrap(-1);
 2120: 	    return(py_retval);
 2121: 	}
 2122:     }
 2123:     xmlTextReaderSetErrorHandler(reader,NULL,NULL);
 2124:     /* set new error handler */
 2125:     if (pyobj_f != Py_None)
 2126:     {
 2127: 	pyCtxt = (xmlTextReaderPyCtxtPtr)xmlMalloc(sizeof(xmlTextReaderPyCtxt));
 2128: 	if (pyCtxt == NULL) {
 2129: 	    py_retval = libxml_intWrap(-1);
 2130: 	    return(py_retval);
 2131: 	}
 2132: 	Py_XINCREF(pyobj_f);
 2133: 	pyCtxt->f = pyobj_f;
 2134: 	Py_XINCREF(pyobj_arg);
 2135: 	pyCtxt->arg = pyobj_arg;
 2136: 	xmlTextReaderSetErrorHandler(reader,
 2137: 	    (xmlTextReaderErrorFunc) libxml_xmlTextReaderErrorCallback,
 2138: 	                             pyCtxt);
 2139:     }
 2140: 
 2141:     py_retval = libxml_intWrap(1);
 2142:     return(py_retval);
 2143: }
 2144: 
 2145: static PyObject *
 2146: libxml_xmlTextReaderGetErrorHandler(ATTRIBUTE_UNUSED PyObject *self, PyObject *args)
 2147: {
 2148:     xmlTextReaderPtr reader;
 2149:     xmlTextReaderPyCtxtPtr pyCtxt;
 2150:     xmlTextReaderErrorFunc f;
 2151:     void *arg;
 2152:     PyObject *pyobj_reader;
 2153:     PyObject *py_retval;
 2154: 
 2155:     if (!PyArg_ParseTuple(args, (char *)"O:xmlTextReaderSetErrorHandler", &pyobj_reader))
 2156:         return(NULL);
 2157:     reader = (xmlTextReaderPtr) PyxmlTextReader_Get(pyobj_reader);
 2158:     xmlTextReaderGetErrorHandler(reader,&f,&arg);
 2159:     py_retval = PyTuple_New(2);
 2160:     if (f == (xmlTextReaderErrorFunc)libxml_xmlTextReaderErrorCallback) {
 2161: 	/* ok, it's our error handler! */
 2162: 	pyCtxt = (xmlTextReaderPyCtxtPtr)arg;
 2163: 	PyTuple_SetItem(py_retval, 0, pyCtxt->f);
 2164: 	Py_XINCREF(pyCtxt->f);
 2165: 	PyTuple_SetItem(py_retval, 1, pyCtxt->arg);
 2166: 	Py_XINCREF(pyCtxt->arg);
 2167:     }
 2168:     else
 2169:     {
 2170: 	/* f is null or it's not our error handler */
 2171: 	PyTuple_SetItem(py_retval, 0, Py_None);
 2172: 	Py_XINCREF(Py_None);
 2173: 	PyTuple_SetItem(py_retval, 1, Py_None);
 2174: 	Py_XINCREF(Py_None);
 2175:     }
 2176:     return(py_retval);
 2177: }
 2178: 
 2179: static PyObject *
 2180: libxml_xmlFreeTextReader(ATTRIBUTE_UNUSED PyObject *self, PyObject *args) {
 2181:     xmlTextReaderPtr reader;
 2182:     PyObject *pyobj_reader;
 2183:     xmlTextReaderPyCtxtPtr pyCtxt;
 2184:     xmlTextReaderErrorFunc f;
 2185:     void *arg;
 2186: 
 2187:     if (!PyArg_ParseTuple(args, (char *)"O:xmlFreeTextReader", &pyobj_reader))
 2188:         return(NULL);
 2189:     if (!PyCapsule_CheckExact(pyobj_reader)) {
 2190: 	Py_INCREF(Py_None);
 2191: 	return(Py_None);
 2192:     }
 2193:     reader = (xmlTextReaderPtr) PyxmlTextReader_Get(pyobj_reader);
 2194:     if (reader == NULL) {
 2195: 	Py_INCREF(Py_None);
 2196: 	return(Py_None);
 2197:     }
 2198: 
 2199:     xmlTextReaderGetErrorHandler(reader,&f,&arg);
 2200:     if (arg != NULL) {
 2201: 	if (f == (xmlTextReaderErrorFunc) libxml_xmlTextReaderErrorCallback) {
 2202: 	    /* ok, it's our error handler! */
 2203: 	    pyCtxt = (xmlTextReaderPyCtxtPtr)arg;
 2204: 	    Py_XDECREF(pyCtxt->f);
 2205: 	    Py_XDECREF(pyCtxt->arg);
 2206: 	    xmlFree(pyCtxt);
 2207: 	}
 2208: 	/* 
 2209: 	 * else, something wrong happened, because the error handler is
 2210: 	 * not owned by the python bindings...
 2211: 	 */
 2212:     }
 2213: 
 2214:     xmlFreeTextReader(reader);
 2215:     Py_INCREF(Py_None);
 2216:     return(Py_None);
 2217: }
 2218: #endif
 2219: 
 2220: /************************************************************************
 2221:  *									*
 2222:  *			XPath extensions				*
 2223:  *									*
 2224:  ************************************************************************/
 2225: 
 2226: static void
 2227: libxml_xmlXPathFuncCallback(xmlXPathParserContextPtr ctxt, int nargs)
 2228: {
 2229:     PyObject *list, *cur, *result;
 2230:     xmlXPathObjectPtr obj;
 2231:     xmlXPathContextPtr rctxt;
 2232:     PyObject *current_function = NULL;
 2233:     const xmlChar *name;
 2234:     const xmlChar *ns_uri;
 2235:     int i;
 2236: 
 2237:     if (ctxt == NULL)
 2238:         return;
 2239:     rctxt = ctxt->context;
 2240:     if (rctxt == NULL)
 2241:         return;
 2242:     name = rctxt->function;
 2243:     ns_uri = rctxt->functionURI;
 2244: #ifdef DEBUG_XPATH
 2245:     printf("libxml_xmlXPathFuncCallback called name %s URI %s\n", name,
 2246:            ns_uri);
 2247: #endif
 2248: 
 2249:     /*
 2250:      * Find the function, it should be there it was there at lookup
 2251:      */
 2252:     for (i = 0; i < libxml_xpathCallbacksNb; i++) {
 2253:         if (                    /* TODO (ctxt == libxml_xpathCallbacks[i].ctx) && */
 2254: 						(xmlStrEqual(name, (*libxml_xpathCallbacks)[i].name)) &&
 2255:                (xmlStrEqual(ns_uri, (*libxml_xpathCallbacks)[i].ns_uri))) {
 2256: 					current_function = (*libxml_xpathCallbacks)[i].function;
 2257:         }
 2258:     }
 2259:     if (current_function == NULL) {
 2260:         printf
 2261:             ("libxml_xmlXPathFuncCallback: internal error %s not found !\n",
 2262:              name);
 2263:         return;
 2264:     }
 2265: 
 2266:     list = PyTuple_New(nargs + 1);
 2267:     PyTuple_SetItem(list, 0, libxml_xmlXPathParserContextPtrWrap(ctxt));
 2268:     for (i = nargs - 1; i >= 0; i--) {
 2269:         obj = valuePop(ctxt);
 2270:         cur = libxml_xmlXPathObjectPtrWrap(obj);
 2271:         PyTuple_SetItem(list, i + 1, cur);
 2272:     }
 2273:     result = PyEval_CallObject(current_function, list);
 2274:     Py_DECREF(list);
 2275: 
 2276:     obj = libxml_xmlXPathObjectPtrConvert(result);
 2277:     valuePush(ctxt, obj);
 2278: }
 2279: 
 2280: static xmlXPathFunction
 2281: libxml_xmlXPathFuncLookupFunc(void *ctxt, const xmlChar * name,
 2282:                               const xmlChar * ns_uri)
 2283: {
 2284:     int i;
 2285: 
 2286: #ifdef DEBUG_XPATH
 2287:     printf("libxml_xmlXPathFuncLookupFunc(%p, %s, %s) called\n",
 2288:            ctxt, name, ns_uri);
 2289: #endif
 2290:     /*
 2291:      * This is called once only. The address is then stored in the
 2292:      * XPath expression evaluation, the proper object to call can
 2293:      * then still be found using the execution context function
 2294:      * and functionURI fields.
 2295:      */
 2296:     for (i = 0; i < libxml_xpathCallbacksNb; i++) {
 2297: 			if ((ctxt == (*libxml_xpathCallbacks)[i].ctx) &&
 2298: 					(xmlStrEqual(name, (*libxml_xpathCallbacks)[i].name)) &&
 2299: 					(xmlStrEqual(ns_uri, (*libxml_xpathCallbacks)[i].ns_uri))) {
 2300:             return (libxml_xmlXPathFuncCallback);
 2301:         }
 2302:     }
 2303:     return (NULL);
 2304: }
 2305: 
 2306: static void
 2307: libxml_xpathCallbacksInitialize(void)
 2308: {
 2309:     int i;
 2310: 
 2311:     if (libxml_xpathCallbacksInitialized != 0)
 2312:         return;
 2313: 
 2314: #ifdef DEBUG_XPATH
 2315:     printf("libxml_xpathCallbacksInitialized called\n");
 2316: #endif
 2317:     libxml_xpathCallbacks = (libxml_xpathCallbackArray*)xmlMalloc(
 2318:     		libxml_xpathCallbacksAllocd*sizeof(libxml_xpathCallback));
 2319: 
 2320:     for (i = 0; i < libxml_xpathCallbacksAllocd; i++) {
 2321: 			(*libxml_xpathCallbacks)[i].ctx = NULL;
 2322: 			(*libxml_xpathCallbacks)[i].name = NULL;
 2323: 			(*libxml_xpathCallbacks)[i].ns_uri = NULL;
 2324: 			(*libxml_xpathCallbacks)[i].function = NULL;
 2325:     }
 2326:     libxml_xpathCallbacksInitialized = 1;
 2327: }
 2328: 
 2329: PyObject *
 2330: libxml_xmlRegisterXPathFunction(ATTRIBUTE_UNUSED PyObject * self,
 2331:                                 PyObject * args)
 2332: {
 2333:     PyObject *py_retval;
 2334:     int c_retval = 0;
 2335:     xmlChar *name;
 2336:     xmlChar *ns_uri;
 2337:     xmlXPathContextPtr ctx;
 2338:     PyObject *pyobj_ctx;
 2339:     PyObject *pyobj_f;
 2340:     int i;
 2341: 
 2342:     if (!PyArg_ParseTuple
 2343:         (args, (char *) "OszO:registerXPathFunction", &pyobj_ctx, &name,
 2344:          &ns_uri, &pyobj_f))
 2345:         return (NULL);
 2346: 
 2347:     ctx = (xmlXPathContextPtr) PyxmlXPathContext_Get(pyobj_ctx);
 2348:     if (libxml_xpathCallbacksInitialized == 0)
 2349:         libxml_xpathCallbacksInitialize();
 2350:     xmlXPathRegisterFuncLookup(ctx, libxml_xmlXPathFuncLookupFunc, ctx);
 2351: 
 2352:     if ((pyobj_ctx == NULL) || (name == NULL) || (pyobj_f == NULL)) {
 2353:         py_retval = libxml_intWrap(-1);
 2354:         return (py_retval);
 2355:     }
 2356: #ifdef DEBUG_XPATH
 2357:     printf("libxml_registerXPathFunction(%p, %s, %s) called\n",
 2358:            ctx, name, ns_uri);
 2359: #endif
 2360:     for (i = 0; i < libxml_xpathCallbacksNb; i++) {
 2361: 	if ((ctx == (*libxml_xpathCallbacks)[i].ctx) &&
 2362:             (xmlStrEqual(name, (*libxml_xpathCallbacks)[i].name)) &&
 2363:             (xmlStrEqual(ns_uri, (*libxml_xpathCallbacks)[i].ns_uri))) {
 2364:             Py_XINCREF(pyobj_f);
 2365:             Py_XDECREF((*libxml_xpathCallbacks)[i].function);
 2366:             (*libxml_xpathCallbacks)[i].function = pyobj_f;
 2367:             c_retval = 1;
 2368:             goto done;
 2369:         }
 2370:     }
 2371:     if (libxml_xpathCallbacksNb >= libxml_xpathCallbacksAllocd) {
 2372: 			libxml_xpathCallbacksAllocd+=10;
 2373: 	libxml_xpathCallbacks = (libxml_xpathCallbackArray*)xmlRealloc(
 2374: 		libxml_xpathCallbacks,
 2375: 		libxml_xpathCallbacksAllocd*sizeof(libxml_xpathCallback));
 2376:     } 
 2377:     i = libxml_xpathCallbacksNb++;
 2378:     Py_XINCREF(pyobj_f);
 2379:     (*libxml_xpathCallbacks)[i].ctx = ctx;
 2380:     (*libxml_xpathCallbacks)[i].name = xmlStrdup(name);
 2381:     (*libxml_xpathCallbacks)[i].ns_uri = xmlStrdup(ns_uri);
 2382:     (*libxml_xpathCallbacks)[i].function = pyobj_f;
 2383:         c_retval = 1;
 2384:     
 2385:   done:
 2386:     py_retval = libxml_intWrap((int) c_retval);
 2387:     return (py_retval);
 2388: }
 2389: 
 2390: PyObject *
 2391: libxml_xmlXPathRegisterVariable(ATTRIBUTE_UNUSED PyObject * self,
 2392:                                 PyObject * args)
 2393: {
 2394:     PyObject *py_retval;
 2395:     int c_retval = 0;
 2396:     xmlChar *name;
 2397:     xmlChar *ns_uri;
 2398:     xmlXPathContextPtr ctx;
 2399:     xmlXPathObjectPtr val;
 2400:     PyObject *pyobj_ctx;
 2401:     PyObject *pyobj_value;
 2402: 
 2403:     if (!PyArg_ParseTuple
 2404:         (args, (char *) "OszO:xpathRegisterVariable", &pyobj_ctx, &name,
 2405:          &ns_uri, &pyobj_value))
 2406:         return (NULL);
 2407: 
 2408:     ctx = (xmlXPathContextPtr) PyxmlXPathContext_Get(pyobj_ctx);
 2409:     val = libxml_xmlXPathObjectPtrConvert(pyobj_value);
 2410: 
 2411:     c_retval = xmlXPathRegisterVariableNS(ctx, name, ns_uri, val);
 2412:     py_retval = libxml_intWrap(c_retval);
 2413:     return (py_retval);
 2414: }
 2415: 
 2416: /************************************************************************
 2417:  *									*
 2418:  *			Global properties access			*
 2419:  *									*
 2420:  ************************************************************************/
 2421: static PyObject *
 2422: libxml_name(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 2423: {
 2424:     PyObject *resultobj, *obj;
 2425:     xmlNodePtr cur;
 2426:     const xmlChar *res;
 2427: 
 2428:     if (!PyArg_ParseTuple(args, (char *) "O:name", &obj))
 2429:         return NULL;
 2430:     cur = PyxmlNode_Get(obj);
 2431: 
 2432: #ifdef DEBUG
 2433:     printf("libxml_name: cur = %p type %d\n", cur, cur->type);
 2434: #endif
 2435: 
 2436:     switch (cur->type) {
 2437:         case XML_DOCUMENT_NODE:
 2438: #ifdef LIBXML_DOCB_ENABLED
 2439:         case XML_DOCB_DOCUMENT_NODE:
 2440: #endif
 2441:         case XML_HTML_DOCUMENT_NODE:{
 2442:                 xmlDocPtr doc = (xmlDocPtr) cur;
 2443: 
 2444:                 res = doc->URL;
 2445:                 break;
 2446:             }
 2447:         case XML_ATTRIBUTE_NODE:{
 2448:                 xmlAttrPtr attr = (xmlAttrPtr) cur;
 2449: 
 2450:                 res = attr->name;
 2451:                 break;
 2452:             }
 2453:         case XML_NAMESPACE_DECL:{
 2454:                 xmlNsPtr ns = (xmlNsPtr) cur;
 2455: 
 2456:                 res = ns->prefix;
 2457:                 break;
 2458:             }
 2459:         default:
 2460:             res = cur->name;
 2461:             break;
 2462:     }
 2463:     resultobj = libxml_constxmlCharPtrWrap(res);
 2464: 
 2465:     return resultobj;
 2466: }
 2467: 
 2468: static PyObject *
 2469: libxml_doc(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 2470: {
 2471:     PyObject *resultobj, *obj;
 2472:     xmlNodePtr cur;
 2473:     xmlDocPtr res;
 2474: 
 2475:     if (!PyArg_ParseTuple(args, (char *) "O:doc", &obj))
 2476:         return NULL;
 2477:     cur = PyxmlNode_Get(obj);
 2478: 
 2479: #ifdef DEBUG
 2480:     printf("libxml_doc: cur = %p\n", cur);
 2481: #endif
 2482: 
 2483:     switch (cur->type) {
 2484:         case XML_DOCUMENT_NODE:
 2485: #ifdef LIBXML_DOCB_ENABLED
 2486:         case XML_DOCB_DOCUMENT_NODE:
 2487: #endif
 2488:         case XML_HTML_DOCUMENT_NODE:
 2489:             res = NULL;
 2490:             break;
 2491:         case XML_ATTRIBUTE_NODE:{
 2492:                 xmlAttrPtr attr = (xmlAttrPtr) cur;
 2493: 
 2494:                 res = attr->doc;
 2495:                 break;
 2496:             }
 2497:         case XML_NAMESPACE_DECL:
 2498:             res = NULL;
 2499:             break;
 2500:         default:
 2501:             res = cur->doc;
 2502:             break;
 2503:     }
 2504:     resultobj = libxml_xmlDocPtrWrap(res);
 2505:     return resultobj;
 2506: }
 2507: 
 2508: static PyObject *
 2509: libxml_properties(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 2510: {
 2511:     PyObject *resultobj, *obj;
 2512:     xmlNodePtr cur;
 2513:     xmlAttrPtr res;
 2514: 
 2515:     if (!PyArg_ParseTuple(args, (char *) "O:properties", &obj))
 2516:         return NULL;
 2517:     cur = PyxmlNode_Get(obj);
 2518:     if ((cur != NULL) && (cur->type == XML_ELEMENT_NODE))
 2519:         res = cur->properties;
 2520:     else
 2521:         res = NULL;
 2522:     resultobj = libxml_xmlAttrPtrWrap(res);
 2523:     return resultobj;
 2524: }
 2525: 
 2526: static PyObject *
 2527: libxml_next(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 2528: {
 2529:     PyObject *resultobj, *obj;
 2530:     xmlNodePtr cur;
 2531:     xmlNodePtr res;
 2532: 
 2533:     if (!PyArg_ParseTuple(args, (char *) "O:next", &obj))
 2534:         return NULL;
 2535:     cur = PyxmlNode_Get(obj);
 2536: 
 2537: #ifdef DEBUG
 2538:     printf("libxml_next: cur = %p\n", cur);
 2539: #endif
 2540: 
 2541:     switch (cur->type) {
 2542:         case XML_DOCUMENT_NODE:
 2543: #ifdef LIBXML_DOCB_ENABLED
 2544:         case XML_DOCB_DOCUMENT_NODE:
 2545: #endif
 2546:         case XML_HTML_DOCUMENT_NODE:
 2547:             res = NULL;
 2548:             break;
 2549:         case XML_ATTRIBUTE_NODE:{
 2550:                 xmlAttrPtr attr = (xmlAttrPtr) cur;
 2551: 
 2552:                 res = (xmlNodePtr) attr->next;
 2553:                 break;
 2554:             }
 2555:         case XML_NAMESPACE_DECL:{
 2556:                 xmlNsPtr ns = (xmlNsPtr) cur;
 2557: 
 2558:                 res = (xmlNodePtr) ns->next;
 2559:                 break;
 2560:             }
 2561:         default:
 2562:             res = cur->next;
 2563:             break;
 2564: 
 2565:     }
 2566:     resultobj = libxml_xmlNodePtrWrap(res);
 2567:     return resultobj;
 2568: }
 2569: 
 2570: static PyObject *
 2571: libxml_prev(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 2572: {
 2573:     PyObject *resultobj, *obj;
 2574:     xmlNodePtr cur;
 2575:     xmlNodePtr res;
 2576: 
 2577:     if (!PyArg_ParseTuple(args, (char *) "O:prev", &obj))
 2578:         return NULL;
 2579:     cur = PyxmlNode_Get(obj);
 2580: 
 2581: #ifdef DEBUG
 2582:     printf("libxml_prev: cur = %p\n", cur);
 2583: #endif
 2584: 
 2585:     switch (cur->type) {
 2586:         case XML_DOCUMENT_NODE:
 2587: #ifdef LIBXML_DOCB_ENABLED
 2588:         case XML_DOCB_DOCUMENT_NODE:
 2589: #endif
 2590:         case XML_HTML_DOCUMENT_NODE:
 2591:             res = NULL;
 2592:             break;
 2593:         case XML_ATTRIBUTE_NODE:{
 2594:                 xmlAttrPtr attr = (xmlAttrPtr) cur;
 2595: 
 2596:                 res = (xmlNodePtr) attr->prev;
 2597:             }
 2598:             break;
 2599:         case XML_NAMESPACE_DECL:
 2600:             res = NULL;
 2601:             break;
 2602:         default:
 2603:             res = cur->prev;
 2604:             break;
 2605:     }
 2606:     resultobj = libxml_xmlNodePtrWrap(res);
 2607:     return resultobj;
 2608: }
 2609: 
 2610: static PyObject *
 2611: libxml_children(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 2612: {
 2613:     PyObject *resultobj, *obj;
 2614:     xmlNodePtr cur;
 2615:     xmlNodePtr res;
 2616: 
 2617:     if (!PyArg_ParseTuple(args, (char *) "O:children", &obj))
 2618:         return NULL;
 2619:     cur = PyxmlNode_Get(obj);
 2620: 
 2621: #ifdef DEBUG
 2622:     printf("libxml_children: cur = %p\n", cur);
 2623: #endif
 2624: 
 2625:     switch (cur->type) {
 2626:         case XML_ELEMENT_NODE:
 2627:         case XML_ENTITY_REF_NODE:
 2628:         case XML_ENTITY_NODE:
 2629:         case XML_PI_NODE:
 2630:         case XML_COMMENT_NODE:
 2631:         case XML_DOCUMENT_NODE:
 2632: #ifdef LIBXML_DOCB_ENABLED
 2633:         case XML_DOCB_DOCUMENT_NODE:
 2634: #endif
 2635:         case XML_HTML_DOCUMENT_NODE:
 2636:         case XML_DTD_NODE:
 2637:             res = cur->children;
 2638:             break;
 2639:         case XML_ATTRIBUTE_NODE:{
 2640:                 xmlAttrPtr attr = (xmlAttrPtr) cur;
 2641: 
 2642:                 res = attr->children;
 2643:                 break;
 2644:             }
 2645:         default:
 2646:             res = NULL;
 2647:             break;
 2648:     }
 2649:     resultobj = libxml_xmlNodePtrWrap(res);
 2650:     return resultobj;
 2651: }
 2652: 
 2653: static PyObject *
 2654: libxml_last(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 2655: {
 2656:     PyObject *resultobj, *obj;
 2657:     xmlNodePtr cur;
 2658:     xmlNodePtr res;
 2659: 
 2660:     if (!PyArg_ParseTuple(args, (char *) "O:last", &obj))
 2661:         return NULL;
 2662:     cur = PyxmlNode_Get(obj);
 2663: 
 2664: #ifdef DEBUG
 2665:     printf("libxml_last: cur = %p\n", cur);
 2666: #endif
 2667: 
 2668:     switch (cur->type) {
 2669:         case XML_ELEMENT_NODE:
 2670:         case XML_ENTITY_REF_NODE:
 2671:         case XML_ENTITY_NODE:
 2672:         case XML_PI_NODE:
 2673:         case XML_COMMENT_NODE:
 2674:         case XML_DOCUMENT_NODE:
 2675: #ifdef LIBXML_DOCB_ENABLED
 2676:         case XML_DOCB_DOCUMENT_NODE:
 2677: #endif
 2678:         case XML_HTML_DOCUMENT_NODE:
 2679:         case XML_DTD_NODE:
 2680:             res = cur->last;
 2681:             break;
 2682:         case XML_ATTRIBUTE_NODE:{
 2683:                 xmlAttrPtr attr = (xmlAttrPtr) cur;
 2684: 
 2685:                 res = attr->last;
 2686:             }
 2687:         default:
 2688:             res = NULL;
 2689:             break;
 2690:     }
 2691:     resultobj = libxml_xmlNodePtrWrap(res);
 2692:     return resultobj;
 2693: }
 2694: 
 2695: static PyObject *
 2696: libxml_parent(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 2697: {
 2698:     PyObject *resultobj, *obj;
 2699:     xmlNodePtr cur;
 2700:     xmlNodePtr res;
 2701: 
 2702:     if (!PyArg_ParseTuple(args, (char *) "O:parent", &obj))
 2703:         return NULL;
 2704:     cur = PyxmlNode_Get(obj);
 2705: 
 2706: #ifdef DEBUG
 2707:     printf("libxml_parent: cur = %p\n", cur);
 2708: #endif
 2709: 
 2710:     switch (cur->type) {
 2711:         case XML_DOCUMENT_NODE:
 2712:         case XML_HTML_DOCUMENT_NODE:
 2713: #ifdef LIBXML_DOCB_ENABLED
 2714:         case XML_DOCB_DOCUMENT_NODE:
 2715: #endif
 2716:             res = NULL;
 2717:             break;
 2718:         case XML_ATTRIBUTE_NODE:{
 2719:                 xmlAttrPtr attr = (xmlAttrPtr) cur;
 2720: 
 2721:                 res = attr->parent;
 2722:             }
 2723: 	    break;
 2724:         case XML_ENTITY_DECL:
 2725:         case XML_NAMESPACE_DECL:
 2726:         case XML_XINCLUDE_START:
 2727:         case XML_XINCLUDE_END:
 2728:             res = NULL;
 2729:             break;
 2730:         default:
 2731:             res = cur->parent;
 2732:             break;
 2733:     }
 2734:     resultobj = libxml_xmlNodePtrWrap(res);
 2735:     return resultobj;
 2736: }
 2737: 
 2738: static PyObject *
 2739: libxml_type(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 2740: {
 2741:     PyObject *resultobj, *obj;
 2742:     xmlNodePtr cur;
 2743:     const xmlChar *res = NULL;
 2744: 
 2745:     if (!PyArg_ParseTuple(args, (char *) "O:last", &obj))
 2746:         return NULL;
 2747:     cur = PyxmlNode_Get(obj);
 2748:     if (cur == NULL) {
 2749:         Py_INCREF(Py_None);
 2750: 	return (Py_None);
 2751:     }
 2752: 
 2753: #ifdef DEBUG
 2754:     printf("libxml_type: cur = %p\n", cur);
 2755: #endif
 2756: 
 2757:     switch (cur->type) {
 2758:         case XML_ELEMENT_NODE:
 2759:             res = (const xmlChar *) "element";
 2760:             break;
 2761:         case XML_ATTRIBUTE_NODE:
 2762:             res = (const xmlChar *) "attribute";
 2763:             break;
 2764:         case XML_TEXT_NODE:
 2765:             res = (const xmlChar *) "text";
 2766:             break;
 2767:         case XML_CDATA_SECTION_NODE:
 2768:             res = (const xmlChar *) "cdata";
 2769:             break;
 2770:         case XML_ENTITY_REF_NODE:
 2771:             res = (const xmlChar *) "entity_ref";
 2772:             break;
 2773:         case XML_ENTITY_NODE:
 2774:             res = (const xmlChar *) "entity";
 2775:             break;
 2776:         case XML_PI_NODE:
 2777:             res = (const xmlChar *) "pi";
 2778:             break;
 2779:         case XML_COMMENT_NODE:
 2780:             res = (const xmlChar *) "comment";
 2781:             break;
 2782:         case XML_DOCUMENT_NODE:
 2783:             res = (const xmlChar *) "document_xml";
 2784:             break;
 2785:         case XML_DOCUMENT_TYPE_NODE:
 2786:             res = (const xmlChar *) "doctype";
 2787:             break;
 2788:         case XML_DOCUMENT_FRAG_NODE:
 2789:             res = (const xmlChar *) "fragment";
 2790:             break;
 2791:         case XML_NOTATION_NODE:
 2792:             res = (const xmlChar *) "notation";
 2793:             break;
 2794:         case XML_HTML_DOCUMENT_NODE:
 2795:             res = (const xmlChar *) "document_html";
 2796:             break;
 2797:         case XML_DTD_NODE:
 2798:             res = (const xmlChar *) "dtd";
 2799:             break;
 2800:         case XML_ELEMENT_DECL:
 2801:             res = (const xmlChar *) "elem_decl";
 2802:             break;
 2803:         case XML_ATTRIBUTE_DECL:
 2804:             res = (const xmlChar *) "attribute_decl";
 2805:             break;
 2806:         case XML_ENTITY_DECL:
 2807:             res = (const xmlChar *) "entity_decl";
 2808:             break;
 2809:         case XML_NAMESPACE_DECL:
 2810:             res = (const xmlChar *) "namespace";
 2811:             break;
 2812:         case XML_XINCLUDE_START:
 2813:             res = (const xmlChar *) "xinclude_start";
 2814:             break;
 2815:         case XML_XINCLUDE_END:
 2816:             res = (const xmlChar *) "xinclude_end";
 2817:             break;
 2818: #ifdef LIBXML_DOCB_ENABLED
 2819:         case XML_DOCB_DOCUMENT_NODE:
 2820:             res = (const xmlChar *) "document_docbook";
 2821:             break;
 2822: #endif
 2823:     }
 2824: #ifdef DEBUG
 2825:     printf("libxml_type: cur = %p: %s\n", cur, res);
 2826: #endif
 2827: 
 2828:     resultobj = libxml_constxmlCharPtrWrap(res);
 2829:     return resultobj;
 2830: }
 2831: 
 2832: /************************************************************************
 2833:  *									*
 2834:  *			Specific accessor functions			*
 2835:  *									*
 2836:  ************************************************************************/
 2837: PyObject *
 2838: libxml_xmlNodeGetNsDefs(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 2839: {
 2840:     PyObject *py_retval;
 2841:     xmlNsPtr c_retval;
 2842:     xmlNodePtr node;
 2843:     PyObject *pyobj_node;
 2844: 
 2845:     if (!PyArg_ParseTuple
 2846:         (args, (char *) "O:xmlNodeGetNsDefs", &pyobj_node))
 2847:         return (NULL);
 2848:     node = (xmlNodePtr) PyxmlNode_Get(pyobj_node);
 2849: 
 2850:     if ((node == NULL) || (node->type != XML_ELEMENT_NODE)) {
 2851:         Py_INCREF(Py_None);
 2852:         return (Py_None);
 2853:     }
 2854:     c_retval = node->nsDef;
 2855:     py_retval = libxml_xmlNsPtrWrap((xmlNsPtr) c_retval);
 2856:     return (py_retval);
 2857: }
 2858: 
 2859: PyObject *
 2860: libxml_xmlNodeRemoveNsDef(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 2861: {
 2862:     PyObject *py_retval;
 2863:     xmlNsPtr ns, prev;
 2864:     xmlNodePtr node;
 2865:     PyObject *pyobj_node;
 2866:     xmlChar *href;
 2867:     xmlNsPtr c_retval;
 2868: 
 2869:     if (!PyArg_ParseTuple
 2870:         (args, (char *) "Oz:xmlNodeRemoveNsDef", &pyobj_node, &href))
 2871:         return (NULL);
 2872:     node = (xmlNodePtr) PyxmlNode_Get(pyobj_node);
 2873:     ns = NULL;
 2874: 
 2875:     if ((node == NULL) || (node->type != XML_ELEMENT_NODE)) {
 2876:         Py_INCREF(Py_None);
 2877:         return (Py_None);
 2878:     }
 2879: 
 2880:     if (href == NULL) {
 2881: 	ns = node->nsDef;
 2882: 	node->nsDef = NULL;
 2883: 	c_retval = 0;
 2884:     }
 2885:     else {
 2886: 	prev = NULL;
 2887: 	ns = node->nsDef;
 2888: 	while (ns != NULL) {
 2889: 	    if (xmlStrEqual(ns->href, href)) {
 2890: 		if (prev != NULL)
 2891: 		    prev->next = ns->next;
 2892: 		else
 2893: 		    node->nsDef = ns->next;
 2894: 		ns->next = NULL;
 2895: 		c_retval = 0;
 2896: 		break;
 2897: 	    }
 2898: 	    prev = ns;
 2899: 	    ns = ns->next;
 2900: 	}
 2901:     }
 2902: 
 2903:     c_retval = ns;
 2904:     py_retval = libxml_xmlNsPtrWrap((xmlNsPtr) c_retval);
 2905:     return (py_retval);
 2906: }
 2907: 
 2908: PyObject *
 2909: libxml_xmlNodeGetNs(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 2910: {
 2911:     PyObject *py_retval;
 2912:     xmlNsPtr c_retval;
 2913:     xmlNodePtr node;
 2914:     PyObject *pyobj_node;
 2915: 
 2916:     if (!PyArg_ParseTuple(args, (char *) "O:xmlNodeGetNs", &pyobj_node))
 2917:         return (NULL);
 2918:     node = (xmlNodePtr) PyxmlNode_Get(pyobj_node);
 2919: 
 2920:     if ((node == NULL) ||
 2921:         ((node->type != XML_ELEMENT_NODE) &&
 2922: 	 (node->type != XML_ATTRIBUTE_NODE))) {
 2923:         Py_INCREF(Py_None);
 2924:         return (Py_None);
 2925:     }
 2926:     c_retval = node->ns;
 2927:     py_retval = libxml_xmlNsPtrWrap((xmlNsPtr) c_retval);
 2928:     return (py_retval);
 2929: }
 2930: 
 2931: #ifdef LIBXML_OUTPUT_ENABLED
 2932: /************************************************************************
 2933:  *									*
 2934:  *			Serialization front-end				*
 2935:  *									*
 2936:  ************************************************************************/
 2937: 
 2938: static PyObject *
 2939: libxml_serializeNode(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 2940: {
 2941:     PyObject *py_retval = NULL;
 2942:     xmlChar *c_retval;
 2943:     PyObject *pyobj_node;
 2944:     xmlNodePtr node;
 2945:     xmlDocPtr doc;
 2946:     const char *encoding;
 2947:     int format;
 2948:     xmlSaveCtxtPtr ctxt;
 2949:     xmlBufferPtr buf;
 2950:     int options = 0;
 2951: 
 2952:     if (!PyArg_ParseTuple(args, (char *) "Ozi:serializeNode", &pyobj_node,
 2953:                           &encoding, &format))
 2954:         return (NULL);
 2955:     node = (xmlNodePtr) PyxmlNode_Get(pyobj_node);
 2956: 
 2957:     if (node == NULL) {
 2958:         Py_INCREF(Py_None);
 2959:         return (Py_None);
 2960:     }
 2961:     if (node->type == XML_DOCUMENT_NODE) {
 2962:         doc = (xmlDocPtr) node;
 2963: 	node = NULL;
 2964: #ifdef LIBXML_HTML_ENABLED
 2965:     } else if (node->type == XML_HTML_DOCUMENT_NODE) {
 2966:         doc = (xmlDocPtr) node;
 2967: 	node = NULL;
 2968: #endif
 2969:     } else {
 2970:         if (node->type == XML_NAMESPACE_DECL)
 2971: 	    doc = NULL;
 2972: 	else
 2973:             doc = node->doc;
 2974:         if ((doc == NULL) || (doc->type == XML_DOCUMENT_NODE)) {
 2975: #ifdef LIBXML_HTML_ENABLED
 2976:         } else if (doc->type == XML_HTML_DOCUMENT_NODE) {
 2977: #endif /* LIBXML_HTML_ENABLED */
 2978:         } else {
 2979:             Py_INCREF(Py_None);
 2980:             return (Py_None);
 2981:         }
 2982:     }
 2983: 
 2984: 
 2985:     buf = xmlBufferCreate();
 2986:     if (buf == NULL) {
 2987: 	Py_INCREF(Py_None);
 2988: 	return (Py_None);
 2989:     }
 2990:     if (format) options |= XML_SAVE_FORMAT;
 2991:     ctxt = xmlSaveToBuffer(buf, encoding, options);
 2992:     if (ctxt == NULL) {
 2993: 	xmlBufferFree(buf);
 2994: 	Py_INCREF(Py_None);
 2995: 	return (Py_None);
 2996:     }
 2997:     if (node == NULL)
 2998: 	xmlSaveDoc(ctxt, doc);
 2999:     else
 3000: 	xmlSaveTree(ctxt, node);
 3001:     xmlSaveClose(ctxt);
 3002: 
 3003:     c_retval = buf->content;
 3004:     buf->content = NULL;
 3005: 
 3006:     xmlBufferFree(buf);
 3007:     py_retval = libxml_charPtrWrap((char *) c_retval);
 3008: 
 3009:     return (py_retval);
 3010: }
 3011: 
 3012: static PyObject *
 3013: libxml_saveNodeTo(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 3014: {
 3015:     PyObject *py_file = NULL;
 3016:     FILE *output;
 3017:     PyObject *pyobj_node;
 3018:     xmlNodePtr node;
 3019:     xmlDocPtr doc;
 3020:     const char *encoding;
 3021:     int format;
 3022:     int len;
 3023:     xmlOutputBufferPtr buf;
 3024:     xmlCharEncodingHandlerPtr handler = NULL;
 3025: 
 3026:     if (!PyArg_ParseTuple(args, (char *) "OOzi:serializeNode", &pyobj_node,
 3027:                           &py_file, &encoding, &format))
 3028:         return (NULL);
 3029:     node = (xmlNodePtr) PyxmlNode_Get(pyobj_node);
 3030:     if (node == NULL) {
 3031:         return (PyLong_FromLong((long) -1));
 3032:     }
 3033:     output = PyFile_Get(py_file);
 3034:     if (output == NULL) {
 3035:         return (PyLong_FromLong((long) -1));
 3036:     }
 3037: 
 3038:     if (node->type == XML_DOCUMENT_NODE) {
 3039:         doc = (xmlDocPtr) node;
 3040:     } else if (node->type == XML_HTML_DOCUMENT_NODE) {
 3041:         doc = (xmlDocPtr) node;
 3042:     } else {
 3043:         doc = node->doc;
 3044:     }
 3045: #ifdef LIBXML_HTML_ENABLED
 3046:     if (doc->type == XML_HTML_DOCUMENT_NODE) {
 3047:         if (encoding == NULL)
 3048:             encoding = (const char *) htmlGetMetaEncoding(doc);
 3049:     }
 3050: #endif /* LIBXML_HTML_ENABLED */
 3051:     if (encoding != NULL) {
 3052:         handler = xmlFindCharEncodingHandler(encoding);
 3053:         if (handler == NULL) {
 3054:             return (PyLong_FromLong((long) -1));
 3055:         }
 3056:     }
 3057:     if (doc->type == XML_HTML_DOCUMENT_NODE) {
 3058:         if (handler == NULL)
 3059:             handler = xmlFindCharEncodingHandler("HTML");
 3060:         if (handler == NULL)
 3061:             handler = xmlFindCharEncodingHandler("ascii");
 3062:     }
 3063: 
 3064:     buf = xmlOutputBufferCreateFile(output, handler);
 3065:     if (node->type == XML_DOCUMENT_NODE) {
 3066:         len = xmlSaveFormatFileTo(buf, doc, encoding, format);
 3067: #ifdef LIBXML_HTML_ENABLED
 3068:     } else if (node->type == XML_HTML_DOCUMENT_NODE) {
 3069:         htmlDocContentDumpFormatOutput(buf, doc, encoding, format);
 3070:         len = xmlOutputBufferClose(buf);
 3071:     } else if (doc->type == XML_HTML_DOCUMENT_NODE) {
 3072:         htmlNodeDumpFormatOutput(buf, doc, node, encoding, format);
 3073:         len = xmlOutputBufferClose(buf);
 3074: #endif /* LIBXML_HTML_ENABLED */
 3075:     } else {
 3076:         xmlNodeDumpOutput(buf, doc, node, 0, format, encoding);
 3077:         len = xmlOutputBufferClose(buf);
 3078:     }
 3079:     PyFile_Release(output);
 3080:     return (PyLong_FromLong((long) len));
 3081: }
 3082: #endif /* LIBXML_OUTPUT_ENABLED */
 3083: 
 3084: /************************************************************************
 3085:  *									*
 3086:  *			Extra stuff					*
 3087:  *									*
 3088:  ************************************************************************/
 3089: PyObject *
 3090: libxml_xmlNewNode(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 3091: {
 3092:     PyObject *py_retval;
 3093:     xmlChar *name;
 3094:     xmlNodePtr node;
 3095: 
 3096:     if (!PyArg_ParseTuple(args, (char *) "s:xmlNewNode", &name))
 3097:         return (NULL);
 3098:     node = (xmlNodePtr) xmlNewNode(NULL, name);
 3099: #ifdef DEBUG
 3100:     printf("NewNode: %s : %p\n", name, (void *) node);
 3101: #endif
 3102: 
 3103:     if (node == NULL) {
 3104:         Py_INCREF(Py_None);
 3105:         return (Py_None);
 3106:     }
 3107:     py_retval = libxml_xmlNodePtrWrap(node);
 3108:     return (py_retval);
 3109: }
 3110: 
 3111: 
 3112: /************************************************************************
 3113:  *									*
 3114:  *			Local Catalog stuff				*
 3115:  *									*
 3116:  ************************************************************************/
 3117: static PyObject *
 3118: libxml_addLocalCatalog(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 3119: {
 3120:     xmlChar *URL;
 3121:     xmlParserCtxtPtr ctxt;
 3122:     PyObject *pyobj_ctxt;
 3123: 
 3124:     if (!PyArg_ParseTuple(args, (char *)"Os:addLocalCatalog", &pyobj_ctxt, &URL))
 3125:         return(NULL);
 3126: 
 3127:     ctxt = (xmlParserCtxtPtr) PyparserCtxt_Get(pyobj_ctxt);
 3128: 
 3129:     if (URL != NULL) {
 3130: 	ctxt->catalogs = xmlCatalogAddLocal(ctxt->catalogs, URL);
 3131:     }
 3132: 
 3133: #ifdef DEBUG
 3134:     printf("LocalCatalog: %s\n", URL);
 3135: #endif
 3136: 
 3137:     Py_INCREF(Py_None);
 3138:     return (Py_None);
 3139: }
 3140: 
 3141: #ifdef LIBXML_SCHEMAS_ENABLED
 3142: 
 3143: /************************************************************************
 3144:  *                                                                      *
 3145:  * RelaxNG error handler registration                                   *
 3146:  *                                                                      *
 3147:  ************************************************************************/
 3148: 
 3149: typedef struct 
 3150: {
 3151:     PyObject *warn;
 3152:     PyObject *error;
 3153:     PyObject *arg;
 3154: } xmlRelaxNGValidCtxtPyCtxt;
 3155: typedef xmlRelaxNGValidCtxtPyCtxt *xmlRelaxNGValidCtxtPyCtxtPtr;
 3156: 
 3157: static void
 3158: libxml_xmlRelaxNGValidityGenericErrorFuncHandler(void *ctx, char *str) 
 3159: {
 3160:     PyObject *list;
 3161:     PyObject *result;
 3162:     xmlRelaxNGValidCtxtPyCtxtPtr pyCtxt;
 3163:     
 3164: #ifdef DEBUG_ERROR
 3165:     printf("libxml_xmlRelaxNGValidityGenericErrorFuncHandler(%p, %s, ...) called\n", ctx, str);
 3166: #endif
 3167: 
 3168:     pyCtxt = (xmlRelaxNGValidCtxtPyCtxtPtr)ctx;
 3169: 
 3170:     list = PyTuple_New(2);
 3171:     PyTuple_SetItem(list, 0, libxml_charPtrWrap(str));
 3172:     PyTuple_SetItem(list, 1, pyCtxt->arg);
 3173:     Py_XINCREF(pyCtxt->arg);
 3174:     result = PyEval_CallObject(pyCtxt->error, list);
 3175:     if (result == NULL) 
 3176:     {
 3177:         /* TODO: manage for the exception to be propagated... */
 3178:         PyErr_Print();
 3179:     }
 3180:     Py_XDECREF(list);
 3181:     Py_XDECREF(result);
 3182: }
 3183: 
 3184: static void
 3185: libxml_xmlRelaxNGValidityGenericWarningFuncHandler(void *ctx, char *str) 
 3186: {
 3187:     PyObject *list;
 3188:     PyObject *result;
 3189:     xmlRelaxNGValidCtxtPyCtxtPtr pyCtxt;
 3190:     
 3191: #ifdef DEBUG_ERROR
 3192:     printf("libxml_xmlRelaxNGValidityGenericWarningFuncHandler(%p, %s, ...) called\n", ctx, str);
 3193: #endif
 3194: 
 3195:     pyCtxt = (xmlRelaxNGValidCtxtPyCtxtPtr)ctx;
 3196: 
 3197:     list = PyTuple_New(2);
 3198:     PyTuple_SetItem(list, 0, libxml_charPtrWrap(str));
 3199:     PyTuple_SetItem(list, 1, pyCtxt->arg);
 3200:     Py_XINCREF(pyCtxt->arg);
 3201:     result = PyEval_CallObject(pyCtxt->warn, list);
 3202:     if (result == NULL) 
 3203:     {
 3204:         /* TODO: manage for the exception to be propagated... */
 3205:         PyErr_Print();
 3206:     }
 3207:     Py_XDECREF(list);
 3208:     Py_XDECREF(result);
 3209: }
 3210: 
 3211: static void
 3212: libxml_xmlRelaxNGValidityErrorFunc(void *ctx, const char *msg, ...)
 3213: {
 3214:     va_list ap;
 3215: 
 3216:     va_start(ap, msg);
 3217:     libxml_xmlRelaxNGValidityGenericErrorFuncHandler(ctx, libxml_buildMessage(msg, ap));
 3218:     va_end(ap);
 3219: }
 3220: 
 3221: static void
 3222: libxml_xmlRelaxNGValidityWarningFunc(void *ctx, const char *msg, ...)
 3223: {
 3224:     va_list ap;
 3225: 
 3226:     va_start(ap, msg);
 3227:     libxml_xmlRelaxNGValidityGenericWarningFuncHandler(ctx, libxml_buildMessage(msg, ap));
 3228:     va_end(ap);
 3229: }
 3230: 
 3231: static PyObject *
 3232: libxml_xmlRelaxNGSetValidErrors(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 3233: {
 3234:     PyObject *py_retval;
 3235:     PyObject *pyobj_error;
 3236:     PyObject *pyobj_warn;
 3237:     PyObject *pyobj_ctx;
 3238:     PyObject *pyobj_arg = Py_None;
 3239:     xmlRelaxNGValidCtxtPtr ctxt;
 3240:     xmlRelaxNGValidCtxtPyCtxtPtr pyCtxt;
 3241: 
 3242:     if (!PyArg_ParseTuple
 3243:         (args, (char *) "OOO|O:xmlRelaxNGSetValidErrors", &pyobj_ctx, &pyobj_error, &pyobj_warn, &pyobj_arg))
 3244:         return (NULL);
 3245: 
 3246: #ifdef DEBUG_ERROR
 3247:     printf("libxml_xmlRelaxNGSetValidErrors(%p, %p, %p) called\n", pyobj_ctx, pyobj_error, pyobj_warn);
 3248: #endif
 3249: 
 3250:     ctxt = PyrelaxNgValidCtxt_Get(pyobj_ctx);
 3251:     if (xmlRelaxNGGetValidErrors(ctxt, NULL, NULL, (void **) &pyCtxt) == -1)
 3252:     {
 3253:         py_retval = libxml_intWrap(-1);
 3254:         return(py_retval);
 3255:     }
 3256:     
 3257:     if (pyCtxt == NULL)
 3258:     {
 3259:         /* first time to set the error handlers */
 3260:         pyCtxt = xmlMalloc(sizeof(xmlRelaxNGValidCtxtPyCtxt));
 3261:         if (pyCtxt == NULL) {
 3262:             py_retval = libxml_intWrap(-1);
 3263:             return(py_retval);
 3264:         }
 3265:         memset(pyCtxt, 0, sizeof(xmlRelaxNGValidCtxtPyCtxt));
 3266:     }
 3267:     
 3268:     /* TODO: check warn and error is a function ! */
 3269:     Py_XDECREF(pyCtxt->error);
 3270:     Py_XINCREF(pyobj_error);
 3271:     pyCtxt->error = pyobj_error;
 3272:     
 3273:     Py_XDECREF(pyCtxt->warn);
 3274:     Py_XINCREF(pyobj_warn);
 3275:     pyCtxt->warn = pyobj_warn;
 3276:     
 3277:     Py_XDECREF(pyCtxt->arg);
 3278:     Py_XINCREF(pyobj_arg);
 3279:     pyCtxt->arg = pyobj_arg;
 3280: 
 3281:     xmlRelaxNGSetValidErrors(ctxt, &libxml_xmlRelaxNGValidityErrorFunc, &libxml_xmlRelaxNGValidityWarningFunc, pyCtxt);
 3282: 
 3283:     py_retval = libxml_intWrap(1);
 3284:     return (py_retval);
 3285: }
 3286: 
 3287: static PyObject *
 3288: libxml_xmlRelaxNGFreeValidCtxt(ATTRIBUTE_UNUSED PyObject *self, PyObject *args) {
 3289:     xmlRelaxNGValidCtxtPtr ctxt;
 3290:     xmlRelaxNGValidCtxtPyCtxtPtr pyCtxt;
 3291:     PyObject *pyobj_ctxt;
 3292: 
 3293:     if (!PyArg_ParseTuple(args, (char *)"O:xmlRelaxNGFreeValidCtxt", &pyobj_ctxt))
 3294:         return(NULL);
 3295:     ctxt = (xmlRelaxNGValidCtxtPtr) PyrelaxNgValidCtxt_Get(pyobj_ctxt);
 3296: 
 3297:     if (xmlRelaxNGGetValidErrors(ctxt, NULL, NULL, (void **) &pyCtxt) == 0)
 3298:     {
 3299:         if (pyCtxt != NULL)
 3300:         {
 3301:             Py_XDECREF(pyCtxt->error);
 3302:             Py_XDECREF(pyCtxt->warn);
 3303:             Py_XDECREF(pyCtxt->arg);
 3304:             xmlFree(pyCtxt);
 3305:         }
 3306:     }
 3307:     
 3308:     xmlRelaxNGFreeValidCtxt(ctxt);
 3309:     Py_INCREF(Py_None);
 3310:     return(Py_None);
 3311: }
 3312: 
 3313: typedef struct
 3314: {
 3315: 	PyObject *warn;
 3316: 	PyObject *error;
 3317: 	PyObject *arg;
 3318: } xmlSchemaValidCtxtPyCtxt;
 3319: typedef xmlSchemaValidCtxtPyCtxt *xmlSchemaValidCtxtPyCtxtPtr;
 3320: 
 3321: static void
 3322: libxml_xmlSchemaValidityGenericErrorFuncHandler(void *ctx, char *str)
 3323: {
 3324: 	PyObject *list;
 3325: 	PyObject *result;
 3326: 	xmlSchemaValidCtxtPyCtxtPtr pyCtxt;
 3327: 
 3328: #ifdef DEBUG_ERROR
 3329: 	printf("libxml_xmlSchemaValiditiyGenericErrorFuncHandler(%p, %s, ...) called\n", ctx, str);
 3330: #endif
 3331: 
 3332: 	pyCtxt = (xmlSchemaValidCtxtPyCtxtPtr) ctx;
 3333: 
 3334: 	list = PyTuple_New(2);
 3335: 	PyTuple_SetItem(list, 0, libxml_charPtrWrap(str));
 3336: 	PyTuple_SetItem(list, 1, pyCtxt->arg);
 3337: 	Py_XINCREF(pyCtxt->arg);
 3338: 	result = PyEval_CallObject(pyCtxt->error, list);
 3339: 	if (result == NULL) 
 3340: 	{
 3341: 		/* TODO: manage for the exception to be propagated... */
 3342: 		PyErr_Print();
 3343: 	}
 3344: 	Py_XDECREF(list);
 3345: 	Py_XDECREF(result);
 3346: }
 3347: 
 3348: static void
 3349: libxml_xmlSchemaValidityGenericWarningFuncHandler(void *ctx, char *str)
 3350: {
 3351: 	PyObject *list;
 3352: 	PyObject *result;
 3353: 	xmlSchemaValidCtxtPyCtxtPtr pyCtxt;
 3354: 
 3355: #ifdef DEBUG_ERROR
 3356: 	printf("libxml_xmlSchemaValidityGenericWarningFuncHandler(%p, %s, ...) called\n", ctx, str);
 3357: #endif
 3358: 	
 3359: 	pyCtxt = (xmlSchemaValidCtxtPyCtxtPtr) ctx;
 3360: 
 3361: 	list = PyTuple_New(2);
 3362: 	PyTuple_SetItem(list, 0, libxml_charPtrWrap(str));
 3363: 	PyTuple_SetItem(list, 1, pyCtxt->arg);
 3364: 	Py_XINCREF(pyCtxt->arg);
 3365: 	result = PyEval_CallObject(pyCtxt->warn, list);
 3366: 	if (result == NULL)
 3367: 	{
 3368: 		/* TODO: manage for the exception to be propagated... */
 3369: 		PyErr_Print();
 3370: 	}
 3371: 	Py_XDECREF(list);
 3372: 	Py_XDECREF(result);
 3373: }
 3374: 
 3375: static void
 3376: libxml_xmlSchemaValidityErrorFunc(void *ctx, const char *msg, ...)
 3377: {
 3378: 	va_list ap;
 3379: 	
 3380: 	va_start(ap, msg);
 3381: 	libxml_xmlSchemaValidityGenericErrorFuncHandler(ctx, libxml_buildMessage(msg, ap));
 3382: 	va_end(ap);
 3383: }
 3384: 
 3385: static void
 3386: libxml_xmlSchemaValidityWarningFunc(void *ctx, const char *msg, ...)
 3387: {
 3388: 	va_list ap;
 3389: 
 3390: 	va_start(ap, msg);
 3391: 	libxml_xmlSchemaValidityGenericWarningFuncHandler(ctx, libxml_buildMessage(msg, ap));
 3392: 	va_end(ap);
 3393: }
 3394: 
 3395: PyObject *
 3396: libxml_xmlSchemaSetValidErrors(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 3397: {
 3398: 	PyObject *py_retval;
 3399: 	PyObject *pyobj_error;
 3400: 	PyObject *pyobj_warn;
 3401: 	PyObject *pyobj_ctx;
 3402: 	PyObject *pyobj_arg = Py_None;
 3403: 	xmlSchemaValidCtxtPtr ctxt;
 3404: 	xmlSchemaValidCtxtPyCtxtPtr pyCtxt;
 3405: 
 3406: 	if (!PyArg_ParseTuple
 3407: 		(args, (char *) "OOO|O:xmlSchemaSetValidErrors", &pyobj_ctx, &pyobj_error, &pyobj_warn, &pyobj_arg))
 3408: 		return (NULL);
 3409: 
 3410: #ifdef DEBUG_ERROR
 3411: 	printf("libxml_xmlSchemaSetValidErrors(%p, %p, %p) called\n", pyobj_ctx, pyobj_error, pyobj_warn);
 3412: #endif
 3413: 
 3414: 	ctxt = PySchemaValidCtxt_Get(pyobj_ctx);
 3415: 	if (xmlSchemaGetValidErrors(ctxt, NULL, NULL, (void **) &pyCtxt) == -1)
 3416: 	{
 3417: 		py_retval = libxml_intWrap(-1);
 3418: 		return(py_retval);
 3419: 	}
 3420: 
 3421: 	if (pyCtxt == NULL)
 3422: 	{
 3423: 		/* first time to set the error handlers */
 3424: 		pyCtxt = xmlMalloc(sizeof(xmlSchemaValidCtxtPyCtxt));
 3425: 		if (pyCtxt == NULL) {
 3426: 			py_retval = libxml_intWrap(-1);
 3427: 			return(py_retval);
 3428: 		}
 3429: 		memset(pyCtxt, 0, sizeof(xmlSchemaValidCtxtPyCtxt));
 3430: 	}
 3431: 
 3432: 	/* TODO: check warn and error is a function ! */
 3433: 	Py_XDECREF(pyCtxt->error);
 3434: 	Py_XINCREF(pyobj_error);
 3435: 	pyCtxt->error = pyobj_error;
 3436: 
 3437: 	Py_XDECREF(pyCtxt->warn);
 3438: 	Py_XINCREF(pyobj_warn);
 3439: 	pyCtxt->warn = pyobj_warn;
 3440: 
 3441: 	Py_XDECREF(pyCtxt->arg);
 3442: 	Py_XINCREF(pyobj_arg);
 3443: 	pyCtxt->arg = pyobj_arg;
 3444: 
 3445: 	xmlSchemaSetValidErrors(ctxt, &libxml_xmlSchemaValidityErrorFunc, &libxml_xmlSchemaValidityWarningFunc, pyCtxt);
 3446: 
 3447: 	py_retval = libxml_intWrap(1);
 3448: 	return(py_retval);
 3449: }
 3450: 
 3451: static PyObject *
 3452: libxml_xmlSchemaFreeValidCtxt(ATTRIBUTE_UNUSED PyObject * self, PyObject * args)
 3453: {
 3454: 	xmlSchemaValidCtxtPtr ctxt;
 3455: 	xmlSchemaValidCtxtPyCtxtPtr pyCtxt;
 3456: 	PyObject *pyobj_ctxt;
 3457: 
 3458: 	if (!PyArg_ParseTuple(args, (char *)"O:xmlSchemaFreeValidCtxt", &pyobj_ctxt))
 3459: 		return(NULL);
 3460: 	ctxt = (xmlSchemaValidCtxtPtr) PySchemaValidCtxt_Get(pyobj_ctxt);
 3461: 
 3462: 	if (xmlSchemaGetValidErrors(ctxt, NULL, NULL, (void **) &pyCtxt) == 0)
 3463: 	{
 3464: 		if (pyCtxt != NULL)
 3465: 		{
 3466: 			Py_XDECREF(pyCtxt->error);
 3467: 			Py_XDECREF(pyCtxt->warn);
 3468: 			Py_XDECREF(pyCtxt->arg);
 3469: 			xmlFree(pyCtxt);
 3470: 		}
 3471: 	}
 3472: 
 3473: 	xmlSchemaFreeValidCtxt(ctxt);
 3474: 	Py_INCREF(Py_None);
 3475: 	return(Py_None);
 3476: }
 3477: 
 3478: #endif
 3479: 
 3480: #ifdef LIBXML_C14N_ENABLED
 3481: #ifdef LIBXML_OUTPUT_ENABLED
 3482: 
 3483: /************************************************************************
 3484:  *                                                                      *
 3485:  * XML Canonicalization c14n                                            *
 3486:  *                                                                      *
 3487:  ************************************************************************/
 3488: 
 3489: static int
 3490: PyxmlNodeSet_Convert(PyObject *py_nodeset, xmlNodeSetPtr *result)
 3491: {
 3492:     xmlNodeSetPtr nodeSet;
 3493:     int is_tuple = 0;
 3494: 
 3495:     if (PyTuple_Check(py_nodeset))
 3496:         is_tuple = 1;
 3497:     else if (PyList_Check(py_nodeset))
 3498:         is_tuple = 0;
 3499:     else if (py_nodeset == Py_None) {
 3500:         *result = NULL;
 3501:         return 0;
 3502:     }
 3503:     else {
 3504:         PyErr_SetString(PyExc_TypeError,
 3505:                         "must be a tuple or list of nodes.");
 3506:         return -1;
 3507:     }
 3508: 
 3509:     nodeSet = (xmlNodeSetPtr) xmlMalloc(sizeof(xmlNodeSet));
 3510:     if (nodeSet == NULL) {
 3511:         PyErr_SetString(PyExc_MemoryError, "");
 3512:         return -1;
 3513:     }
 3514: 
 3515:     nodeSet->nodeNr = 0;
 3516:     nodeSet->nodeMax = (is_tuple
 3517:                         ? PyTuple_GET_SIZE(py_nodeset)
 3518:                         : PyList_GET_SIZE(py_nodeset));
 3519:     nodeSet->nodeTab
 3520:         = (xmlNodePtr *) xmlMalloc (nodeSet->nodeMax
 3521:                                     * sizeof(xmlNodePtr));
 3522:     if (nodeSet->nodeTab == NULL) {
 3523:         xmlFree(nodeSet);
 3524:         PyErr_SetString(PyExc_MemoryError, "");
 3525:         return -1;
 3526:     }
 3527:     memset(nodeSet->nodeTab, 0 ,
 3528:            nodeSet->nodeMax * sizeof(xmlNodePtr));
 3529: 
 3530:     {
 3531:         int idx;
 3532:         for (idx=0; idx < nodeSet->nodeMax; ++idx) {
 3533:             xmlNodePtr pynode =
 3534:                 PyxmlNode_Get (is_tuple
 3535:                                ? PyTuple_GET_ITEM(py_nodeset, idx)
 3536:                                : PyList_GET_ITEM(py_nodeset, idx));
 3537:             if (pynode)
 3538:                 nodeSet->nodeTab[nodeSet->nodeNr++] = pynode;
 3539:         }
 3540:     }
 3541:     *result = nodeSet;
 3542:     return 0;
 3543: }
 3544: 
 3545: static int
 3546: PystringSet_Convert(PyObject *py_strings, xmlChar *** result)
 3547: {
 3548:     /* NOTE: the array should be freed, but the strings are shared
 3549:        with the python strings and so must not be freed. */
 3550: 
 3551:     xmlChar ** strings;
 3552:     int is_tuple = 0;
 3553:     int count;
 3554:     int init_index = 0;
 3555: 
 3556:     if (PyTuple_Check(py_strings))
 3557:         is_tuple = 1;
 3558:     else if (PyList_Check(py_strings))
 3559:         is_tuple = 0;
 3560:     else if (py_strings == Py_None) {
 3561:         *result = NULL;
 3562:         return 0;
 3563:     }
 3564:     else {
 3565:         PyErr_SetString(PyExc_TypeError,
 3566:                         "must be a tuple or list of strings.");
 3567:         return -1;
 3568:     }
 3569: 
 3570:     count = (is_tuple
 3571:              ? PyTuple_GET_SIZE(py_strings)
 3572:              : PyList_GET_SIZE(py_strings));
 3573: 
 3574:     strings = (xmlChar **) xmlMalloc(sizeof(xmlChar *) * count);
 3575: 
 3576:     if (strings == NULL) {
 3577:         PyErr_SetString(PyExc_MemoryError, "");
 3578:         return -1;
 3579:     }
 3580: 
 3581:     memset(strings, 0 , sizeof(xmlChar *) * count);
 3582: 
 3583:     {
 3584:         int idx;
 3585:         for (idx=0; idx < count; ++idx) {
 3586:             char* s = PyBytes_AsString
 3587:                 (is_tuple
 3588:                  ? PyTuple_GET_ITEM(py_strings, idx)
 3589:                  : PyList_GET_ITEM(py_strings, idx));
 3590:             if (s)
 3591:                 strings[init_index++] = (xmlChar *)s;
 3592:             else {
 3593:                 xmlFree(strings);
 3594:                 PyErr_SetString(PyExc_TypeError,
 3595:                                 "must be a tuple or list of strings.");
 3596:                 return -1;
 3597:             }
 3598:         }
 3599:     }
 3600: 
 3601:     *result = strings;
 3602:     return 0;
 3603: }
 3604: 
 3605: static PyObject *
 3606: libxml_C14NDocDumpMemory(ATTRIBUTE_UNUSED PyObject * self,
 3607:                          PyObject * args)
 3608: {
 3609:     PyObject *py_retval = NULL;
 3610: 
 3611:     PyObject *pyobj_doc;
 3612:     PyObject *pyobj_nodes;
 3613:     int exclusive;
 3614:     PyObject *pyobj_prefixes;
 3615:     int with_comments;
 3616: 
 3617:     xmlDocPtr doc;
 3618:     xmlNodeSetPtr nodes;
 3619:     xmlChar **prefixes = NULL;
 3620:     xmlChar *doc_txt;
 3621: 
 3622:     int result;
 3623: 
 3624:     if (!PyArg_ParseTuple(args, (char *) "OOiOi:C14NDocDumpMemory",
 3625:                           &pyobj_doc,
 3626:                           &pyobj_nodes,
 3627:                           &exclusive,
 3628:                           &pyobj_prefixes,
 3629:                           &with_comments))
 3630:         return (NULL);
 3631: 
 3632:     doc = (xmlDocPtr) PyxmlNode_Get(pyobj_doc);
 3633:     if (!doc) {
 3634:         PyErr_SetString(PyExc_TypeError, "bad document.");
 3635:         return NULL;
 3636:     }
 3637: 
 3638:     result = PyxmlNodeSet_Convert(pyobj_nodes, &nodes);
 3639:     if (result < 0) return NULL;
 3640: 
 3641:     if (exclusive) {
 3642:         result = PystringSet_Convert(pyobj_prefixes, &prefixes);
 3643:         if (result < 0) {
 3644:             if (nodes) {
 3645:                 xmlFree(nodes->nodeTab);
 3646:                 xmlFree(nodes);
 3647:             }
 3648:             return NULL;
 3649:         }
 3650:     }
 3651: 
 3652:     result = xmlC14NDocDumpMemory(doc,
 3653:                                   nodes,
 3654:                                   exclusive,
 3655:                                   prefixes,
 3656:                                   with_comments,
 3657:                                   &doc_txt);
 3658: 
 3659:     if (nodes) {
 3660:         xmlFree(nodes->nodeTab);
 3661:         xmlFree(nodes);
 3662:     }
 3663:     if (prefixes) {
 3664:         xmlChar ** idx = prefixes;
 3665:         while (*idx) xmlFree(*(idx++));
 3666:         xmlFree(prefixes);
 3667:     }
 3668: 
 3669:     if (result < 0) {
 3670:         PyErr_SetString(PyExc_Exception,
 3671:                         "libxml2 xmlC14NDocDumpMemory failure.");
 3672:         return NULL;
 3673:     }
 3674:     else {
 3675:         py_retval = PY_IMPORT_STRING_SIZE((const char *) doc_txt,
 3676:                                                 result);
 3677:         xmlFree(doc_txt);
 3678:         return py_retval;
 3679:     }
 3680: }
 3681: 
 3682: static PyObject *
 3683: libxml_C14NDocSaveTo(ATTRIBUTE_UNUSED PyObject * self,
 3684:                      PyObject * args)
 3685: {
 3686:     PyObject *pyobj_doc;
 3687:     PyObject *py_file;
 3688:     PyObject *pyobj_nodes;
 3689:     int exclusive;
 3690:     PyObject *pyobj_prefixes;
 3691:     int with_comments;
 3692: 
 3693:     xmlDocPtr doc;
 3694:     xmlNodeSetPtr nodes;
 3695:     xmlChar **prefixes = NULL;
 3696:     FILE * output;
 3697:     xmlOutputBufferPtr buf;
 3698: 
 3699:     int result;
 3700:     int len;
 3701: 
 3702:     if (!PyArg_ParseTuple(args, (char *) "OOiOiO:C14NDocSaveTo",
 3703:                           &pyobj_doc,
 3704:                           &pyobj_nodes,
 3705:                           &exclusive,
 3706:                           &pyobj_prefixes,
 3707:                           &with_comments,
 3708:                           &py_file))
 3709:         return (NULL);
 3710: 
 3711:     doc = (xmlDocPtr) PyxmlNode_Get(pyobj_doc);
 3712:     if (!doc) {
 3713:         PyErr_SetString(PyExc_TypeError, "bad document.");
 3714:         return NULL;
 3715:     }
 3716: 
 3717:     output = PyFile_Get(py_file);
 3718:     if (output == NULL) {
 3719:         PyErr_SetString(PyExc_TypeError, "bad file.");
 3720:         return NULL;
 3721:     }
 3722:     buf = xmlOutputBufferCreateFile(output, NULL);
 3723: 
 3724:     result = PyxmlNodeSet_Convert(pyobj_nodes, &nodes);
 3725:     if (result < 0) return NULL;
 3726: 
 3727:     if (exclusive) {
 3728:         result = PystringSet_Convert(pyobj_prefixes, &prefixes);
 3729:         if (result < 0) {
 3730:             if (nodes) {
 3731:                 xmlFree(nodes->nodeTab);
 3732:                 xmlFree(nodes);
 3733:             }
 3734:             return NULL;
 3735:         }
 3736:     }
 3737: 
 3738:     result = xmlC14NDocSaveTo(doc,
 3739:                               nodes,
 3740:                               exclusive,
 3741:                               prefixes,
 3742:                               with_comments,
 3743:                               buf);
 3744: 
 3745:     if (nodes) {
 3746:         xmlFree(nodes->nodeTab);
 3747:         xmlFree(nodes);
 3748:     }
 3749:     if (prefixes) {
 3750:         xmlChar ** idx = prefixes;
 3751:         while (*idx) xmlFree(*(idx++));
 3752:         xmlFree(prefixes);
 3753:     }
 3754: 
 3755:     PyFile_Release(output);
 3756:     len = xmlOutputBufferClose(buf);
 3757: 
 3758:     if (result < 0) {
 3759:         PyErr_SetString(PyExc_Exception,
 3760:                         "libxml2 xmlC14NDocSaveTo failure.");
 3761:         return NULL;
 3762:     }
 3763:     else
 3764:         return PyLong_FromLong((long) len);
 3765: }
 3766: 
 3767: #endif
 3768: #endif
 3769: 
 3770: static PyObject *
 3771: libxml_getObjDesc(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
 3772: 
 3773:     PyObject *obj;
 3774:     char *str;
 3775: 
 3776:     if (!PyArg_ParseTuple(args, (char *)"O:getObjDesc", &obj))
 3777:         return NULL;
 3778:     str = PyCapsule_GetPointer(obj, PyCapsule_GetName(obj));
 3779:     return Py_BuildValue((char *)"s", str);
 3780: }
 3781: 
 3782: static PyObject *
 3783: libxml_compareNodesEqual(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
 3784:     
 3785:     PyObject *py_node1, *py_node2;
 3786:     xmlNodePtr node1, node2;
 3787: 
 3788:     if (!PyArg_ParseTuple(args, (char *)"OO:compareNodesEqual",
 3789: 		&py_node1, &py_node2))
 3790:         return NULL;
 3791:     /* To compare two node objects, we compare their pointer addresses */
 3792:     node1 = PyxmlNode_Get(py_node1);
 3793:     node2 = PyxmlNode_Get(py_node2);
 3794:     if ( node1 == node2 )
 3795:         return Py_BuildValue((char *)"i", 1);
 3796:     else
 3797:         return Py_BuildValue((char *)"i", 0);
 3798:     
 3799: }
 3800: 
 3801: static PyObject *
 3802: libxml_nodeHash(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
 3803: 
 3804:     PyObject *py_node1;
 3805:     xmlNodePtr node1;
 3806: 
 3807:     if (!PyArg_ParseTuple(args, (char *)"O:nodeHash", &py_node1))
 3808: 	    return NULL;
 3809:     /* For simplicity, we use the node pointer address as a hash value */
 3810:     node1 = PyxmlNode_Get(py_node1);
 3811: 
 3812:     return PyLong_FromVoidPtr(node1);
 3813: 
 3814: }
 3815: 
 3816: /************************************************************************
 3817:  *									*
 3818:  *			The registration stuff				*
 3819:  *									*
 3820:  ************************************************************************/
 3821: static PyMethodDef libxmlMethods[] = {
 3822: #include "libxml2-export.c"
 3823:     {(char *) "name", libxml_name, METH_VARARGS, NULL},
 3824:     {(char *) "children", libxml_children, METH_VARARGS, NULL},
 3825:     {(char *) "properties", libxml_properties, METH_VARARGS, NULL},
 3826:     {(char *) "last", libxml_last, METH_VARARGS, NULL},
 3827:     {(char *) "prev", libxml_prev, METH_VARARGS, NULL},
 3828:     {(char *) "next", libxml_next, METH_VARARGS, NULL},
 3829:     {(char *) "parent", libxml_parent, METH_VARARGS, NULL},
 3830:     {(char *) "type", libxml_type, METH_VARARGS, NULL},
 3831:     {(char *) "doc", libxml_doc, METH_VARARGS, NULL},
 3832:     {(char *) "xmlNewNode", libxml_xmlNewNode, METH_VARARGS, NULL},
 3833:     {(char *) "xmlNodeRemoveNsDef", libxml_xmlNodeRemoveNsDef, METH_VARARGS, NULL},
 3834:     {(char *)"xmlSetValidErrors", libxml_xmlSetValidErrors, METH_VARARGS, NULL},
 3835:     {(char *)"xmlFreeValidCtxt", libxml_xmlFreeValidCtxt, METH_VARARGS, NULL},
 3836: #ifdef LIBXML_OUTPUT_ENABLED
 3837:     {(char *) "serializeNode", libxml_serializeNode, METH_VARARGS, NULL},
 3838:     {(char *) "saveNodeTo", libxml_saveNodeTo, METH_VARARGS, NULL},
 3839:     {(char *) "outputBufferCreate", libxml_xmlCreateOutputBuffer, METH_VARARGS, NULL},
 3840:     {(char *) "outputBufferGetPythonFile", libxml_outputBufferGetPythonFile, METH_VARARGS, NULL},
 3841:     {(char *) "xmlOutputBufferClose", libxml_xmlOutputBufferClose, METH_VARARGS, NULL},
 3842:     { (char *)"xmlOutputBufferFlush", libxml_xmlOutputBufferFlush, METH_VARARGS, NULL },
 3843:     { (char *)"xmlSaveFileTo", libxml_xmlSaveFileTo, METH_VARARGS, NULL },
 3844:     { (char *)"xmlSaveFormatFileTo", libxml_xmlSaveFormatFileTo, METH_VARARGS, NULL },
 3845: #endif /* LIBXML_OUTPUT_ENABLED */
 3846:     {(char *) "inputBufferCreate", libxml_xmlCreateInputBuffer, METH_VARARGS, NULL},
 3847:     {(char *) "setEntityLoader", libxml_xmlSetEntityLoader, METH_VARARGS, NULL},
 3848:     {(char *)"xmlRegisterErrorHandler", libxml_xmlRegisterErrorHandler, METH_VARARGS, NULL },
 3849:     {(char *)"xmlParserCtxtSetErrorHandler", libxml_xmlParserCtxtSetErrorHandler, METH_VARARGS, NULL },
 3850:     {(char *)"xmlParserCtxtGetErrorHandler", libxml_xmlParserCtxtGetErrorHandler, METH_VARARGS, NULL },
 3851:     {(char *)"xmlFreeParserCtxt", libxml_xmlFreeParserCtxt, METH_VARARGS, NULL },
 3852: #ifdef LIBXML_READER_ENABLED
 3853:     {(char *)"xmlTextReaderSetErrorHandler", libxml_xmlTextReaderSetErrorHandler, METH_VARARGS, NULL },
 3854:     {(char *)"xmlTextReaderGetErrorHandler", libxml_xmlTextReaderGetErrorHandler, METH_VARARGS, NULL },
 3855:     {(char *)"xmlFreeTextReader", libxml_xmlFreeTextReader, METH_VARARGS, NULL },
 3856: #endif
 3857:     {(char *)"addLocalCatalog", libxml_addLocalCatalog, METH_VARARGS, NULL },
 3858: #ifdef LIBXML_SCHEMAS_ENABLED
 3859:     {(char *)"xmlRelaxNGSetValidErrors", libxml_xmlRelaxNGSetValidErrors, METH_VARARGS, NULL},
 3860:     {(char *)"xmlRelaxNGFreeValidCtxt", libxml_xmlRelaxNGFreeValidCtxt, METH_VARARGS, NULL},
 3861:     {(char *)"xmlSchemaSetValidErrors", libxml_xmlSchemaSetValidErrors, METH_VARARGS, NULL},
 3862:     {(char *)"xmlSchemaFreeValidCtxt", libxml_xmlSchemaFreeValidCtxt, METH_VARARGS, NULL},
 3863: #endif
 3864: #ifdef LIBXML_C14N_ENABLED
 3865: #ifdef LIBXML_OUTPUT_ENABLED
 3866:     {(char *)"xmlC14NDocDumpMemory", libxml_C14NDocDumpMemory, METH_VARARGS, NULL},
 3867:     {(char *)"xmlC14NDocSaveTo", libxml_C14NDocSaveTo, METH_VARARGS, NULL},
 3868: #endif
 3869: #endif
 3870:     {(char *) "getObjDesc", libxml_getObjDesc, METH_VARARGS, NULL},
 3871:     {(char *) "compareNodesEqual", libxml_compareNodesEqual, METH_VARARGS, NULL},
 3872:     {(char *) "nodeHash", libxml_nodeHash, METH_VARARGS, NULL},
 3873:     {(char *) "xmlRegisterInputCallback", libxml_xmlRegisterInputCallback, METH_VARARGS, NULL},
 3874:     {(char *) "xmlUnregisterInputCallback", libxml_xmlUnregisterInputCallback, METH_VARARGS, NULL},
 3875:     {NULL, NULL, 0, NULL}
 3876: };
 3877: 
 3878: #if PY_MAJOR_VERSION >= 3
 3879: #define INITERROR return NULL
 3880: 
 3881: static struct PyModuleDef moduledef = {
 3882:         PyModuleDef_HEAD_INIT,
 3883:         "libxml2mod",
 3884:         NULL,
 3885:         -1,
 3886:         libxmlMethods,
 3887:         NULL,
 3888:         NULL,
 3889:         NULL,
 3890:         NULL
 3891: };
 3892: 
 3893: #else
 3894: #define INITERROR return
 3895: 
 3896: #ifdef MERGED_MODULES
 3897: extern void initlibxsltmod(void);
 3898: #endif
 3899: 
 3900: #endif
 3901: 
 3902: #if PY_MAJOR_VERSION >= 3
 3903: PyObject *PyInit_libxml2mod(void)
 3904: #else
 3905: void initlibxml2mod(void)
 3906: #endif
 3907: {
 3908:     PyObject *module;
 3909: 
 3910: #if PY_MAJOR_VERSION >= 3
 3911:     module = PyModule_Create(&moduledef);
 3912: #else
 3913:     /* intialize the python extension module */
 3914:     module = Py_InitModule((char *) "libxml2mod", libxmlMethods);
 3915: #endif
 3916:     if (module == NULL)
 3917:         INITERROR;
 3918: 
 3919:     /* initialize libxml2 */
 3920:     xmlInitParser();
 3921:     /* TODO this probably need to be revamped for Python3 */
 3922:     libxml_xmlErrorInitialize();
 3923: 
 3924: #if PY_MAJOR_VERSION < 3
 3925: #ifdef MERGED_MODULES
 3926:     initlibxsltmod();
 3927: #endif
 3928: #endif
 3929: 
 3930: #if PY_MAJOR_VERSION >= 3
 3931:     return module;
 3932: #endif
 3933: }

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