/* * tclexpat.c -- * * A Tcl interface to James Clark's expat XML parser * * Copyright (c) 1998 Steve Ball, Zveno Pty Ltd * * Zveno Pty Ltd makes this software and associated documentation * available free of charge for any purpose. You may make copies * of the software but you must include all of this notice on any copy. * * Zveno Pty Ltd does not warrant that this software is error free * or fit for any purpose. Zveno Pty Ltd disclaims any liability for * all claims, expenses, losses, damages and costs any user may incur * as a result of using, copying or modifying the software. * * $Id: tclexpat.c,v 1.1.1.1 2004/05/23 22:50:39 neumann Exp $ * */ #include #include #include #include "xmlparse.h" /* * The structure below is used to refer to an expat parser object. */ typedef struct TclExpatInfo { XML_Parser parser; /* The expat parser structure */ Tcl_Interp *interp; /* Interpreter for this instance */ Tcl_Obj *name; /* name of this instance */ int final; /* input data complete? */ int status; /* application status */ Tcl_Obj *result; /* application return result */ int continueCount; /* reference count for continue */ Tcl_Obj *elementstartcommand; /* Script for element start */ Tcl_Obj *elementendcommand; /* Script for element end */ Tcl_Obj *datacommand; /* Script for character data */ Tcl_Obj *picommand; /* Script for processing instruction */ Tcl_Obj *defaultcommand; /* Script for default data */ Tcl_Obj *unparsedcommand; /* Script for unparsed entity declaration */ Tcl_Obj *notationcommand; /* Script for notation declaration */ Tcl_Obj *externalentitycommand; /* Script for external entity */ Tcl_Obj *unknownencodingcommand; /* Script for unknown character encoding */ } TclExpatInfo; /* * Prototypes for procedures defined later in this file: */ static Tcl_ObjCmdProc TclExpatObjCmd; static Tcl_ObjCmdProc TclExpatInstanceCmd; static Tcl_CmdDeleteProc TclExpatDeleteCmd; static int (TclExpatCreateParser) _ANSI_ARGS_((Tcl_Interp *interp, TclExpatInfo *expat)); static void (TclExpatFreeParser) _ANSI_ARGS_((TclExpatInfo *expat)); static int (TclExpatParse) _ANSI_ARGS_((Tcl_Interp *interp, TclExpatInfo *expat, char *data, size_t len)); static int (TclExpatConfigure) _ANSI_ARGS_((Tcl_Interp *interp, TclExpatInfo *expat, int objc, Tcl_Obj *CONST objv[])); static int (TclExpatCget) _ANSI_ARGS_((Tcl_Interp *interp, TclExpatInfo *expat, int objc, Tcl_Obj *CONST objv[])); static void * (TclExpatElementStartHandler) _ANSI_ARGS_((void *userdata, const XML_Char *name, const XML_Char **atts)); static void * (TclExpatElementEndHandler) _ANSI_ARGS_((void *userData, const XML_Char *name)); static void * (TclExpatCharacterDataHandler) _ANSI_ARGS_((void *userData, const XML_Char *s, int len)); static void * (TclExpatProcessingInstructionHandler) _ANSI_ARGS_((void *userData, const XML_Char *target, const XML_Char *data)); static void * (TclExpatExternalEntityRefHandler) _ANSI_ARGS_((XML_Parser parser, const XML_Char *openEntityNames, const XML_Char *base, const XML_Char *systemId, const XML_Char *publicId)); static void * (TclExpatDefaultHandler) _ANSI_ARGS_ ((void *userData, const XML_Char *s, int len)); static void * (TclExpatUnparsedDeclHandler) _ANSI_ARGS_ ((void *userData, const XML_Char *entityname, const XML_Char *base, const XML_Char *systemId, const XML_Char *publicId, const XML_Char *notationName)); static void * (TclExpatNotationDeclHandler) _ANSI_ARGS_ ((void *userData, const XML_Char *notationName, const XML_Char *base, const XML_Char *systemId, const XML_Char *publicId)); static int (TclExpatUnknownEncodingHandler) _ANSI_ARGS_ ((void *encodingHandlerData, const XML_Char *name, XML_Encoding *info)); #if defined(PRE81) /* *---------------------------------------------------------------------------- * * Tcl_GetString -- * * Compatibility routine for Tcl 8.0 * * Results: * String representation of object.. * * Side effects: * None. * *---------------------------------------------------------------------------- */ char * Tcl_GetString (obj) Tcl_Obj *obj; /* Object to retrieve string from. */ { char *s; int i; s = Tcl_GetStringFromObj(obj, &i); return s; } #endif /* *---------------------------------------------------------------------------- * * TclExpat_Init -- * * Initialisation routine for loadable module * * Results: * None. * * Side effects: * Defines "expat" command in the interpreter. * *---------------------------------------------------------------------------- */ /* this should be done via the stubs ... for the time being simply export */ #ifdef VISUAL_CC DLLEXPORT extern int Xotclexpat_Init(Tcl_Interp * interp); # define CONST_XOTCL_EXPAT #else # if defined(PRE84) # define CONST_XOTCL_EXPAT # else # define CONST_XOTCL_EXPAT CONST84 # endif #endif extern int Xotclexpat_Init (interp) Tcl_Interp *interp; /* Interpreter to initialise. */ { #ifdef USE_TCL_STUBS if (Tcl_InitStubs(interp, "8.1", 0) == NULL) { return TCL_ERROR; } #ifdef USE_XOTCL_STUBS if (Xotcl_InitStubs(interp, "1.1", 0) == NULL) { return TCL_ERROR; } #endif #else if (Tcl_PkgRequire(interp, "Tcl", TCL_VERSION, 0) == NULL) { return TCL_ERROR; } #endif Tcl_PkgProvide(interp, "xotcl::xml::expat", PACKAGE_VERSION); Tcl_CreateObjCommand(interp, "expat", TclExpatObjCmd, NULL, NULL); return TCL_OK; } /* *---------------------------------------------------------------------------- * * TclExpatObjCmd -- * * Creation command for expat class. * * Results: * The name of the newly created parser instance. * * Side effects: * This creates an expat parser. * *---------------------------------------------------------------------------- */ int TclExpatObjCmd(dummy, interp, objc, objv) ClientData dummy; Tcl_Interp *interp; int objc; Tcl_Obj *CONST objv[]; { TclExpatInfo *expat; if (objc < 2) { Tcl_WrongNumArgs(interp, 1, objv, "name ?args?"); return TCL_ERROR; } /* * Create the data structures for this parser. */ if (!(expat = (TclExpatInfo *) ckalloc(sizeof(TclExpatInfo)))) { ckfree((char*)expat); Tcl_SetResult(interp, "unable to create parser", NULL); return TCL_ERROR; } expat->interp = interp; Tcl_IncrRefCount(objv[1]); expat->name = objv[1]; expat->elementstartcommand = NULL; expat->elementendcommand = NULL; expat->datacommand = NULL; expat->picommand = NULL; expat->defaultcommand = NULL; expat->unparsedcommand = NULL; expat->notationcommand = NULL; expat->externalentitycommand = NULL; expat->unknownencodingcommand = NULL; if (TclExpatCreateParser(interp, expat) != TCL_OK) { ckfree((char*)expat); return TCL_ERROR; } /* * Register a Tcl command for this parser instance. */ Tcl_CreateObjCommand(interp, Tcl_GetString(expat->name), TclExpatInstanceCmd, (ClientData) expat, TclExpatDeleteCmd); /* * Handle configuration options */ if (objc > 2) { TclExpatConfigure(interp, expat, objc - 2, objv + 2); } Tcl_SetObjResult(interp, expat->name); return TCL_OK; } /* *---------------------------------------------------------------------------- * * TclExpatCreateParser -- * * Create the expat parser and initialise (some of) the TclExpatInfo * structure. * * Note that callback commands are not affected by this routine, * to allow a reset to leave these intact. * * Results: * New parser instance created and initialised. * * Side effects: * Creates an expat parser. * Modifies TclExpatInfo fields. * *---------------------------------------------------------------------------- */ int TclExpatCreateParser(interp, expat) Tcl_Interp *interp; TclExpatInfo *expat; { if (!(expat->parser = XML_ParserCreate(NULL))) { Tcl_SetResult(interp, "unable to create expat parser", NULL); return TCL_ERROR; } expat->final = 1; expat->status = TCL_OK; expat->result = NULL; expat->continueCount = 0; /* * Set handlers for the parser to routines in this module. */ XML_SetElementHandler(expat->parser, (XML_StartElementHandler) TclExpatElementStartHandler, (XML_EndElementHandler) TclExpatElementEndHandler); XML_SetCharacterDataHandler(expat->parser, (XML_CharacterDataHandler) TclExpatCharacterDataHandler); XML_SetProcessingInstructionHandler(expat->parser, (XML_ProcessingInstructionHandler) TclExpatProcessingInstructionHandler); XML_SetDefaultHandler(expat->parser, (XML_DefaultHandler) TclExpatDefaultHandler); XML_SetUnparsedEntityDeclHandler(expat->parser, (XML_UnparsedEntityDeclHandler) TclExpatUnparsedDeclHandler); XML_SetNotationDeclHandler(expat->parser, (XML_NotationDeclHandler) TclExpatNotationDeclHandler); XML_SetExternalEntityRefHandler(expat->parser, (XML_ExternalEntityRefHandler) TclExpatExternalEntityRefHandler); XML_SetUnknownEncodingHandler(expat->parser, (XML_UnknownEncodingHandler) TclExpatUnknownEncodingHandler, (void *) expat); XML_SetUserData(expat->parser, (void *) expat); return TCL_OK; } /* *---------------------------------------------------------------------------- * * TclExpatFreeParser -- * * Destroy the expat parser structure. * * Results: * None. * * Side effects: * Frees any memory allocated for the XML parser. * *---------------------------------------------------------------------------- */ void TclExpatFreeParser(expat) TclExpatInfo *expat; { XML_ParserFree(expat->parser); expat->parser = NULL; } /* *---------------------------------------------------------------------------- * * TclExpatInstanceCmd -- * * Implements instance command for expat class objects. * * Results: * Depends on the method. * * Side effects: * Depends on the method. * *---------------------------------------------------------------------------- */ int TclExpatInstanceCmd (clientData, interp, objc, objv) ClientData clientData; Tcl_Interp *interp; int objc; Tcl_Obj *CONST objv[]; { TclExpatInfo *expat = (TclExpatInfo *) clientData; char *data; size_t len; int index, result = TCL_OK; static char CONST_XOTCL_EXPAT *options[] = { "configure", "cget", "parse", "reset", NULL }; enum options { EXPAT_CONFIGURE, EXPAT_CGET, EXPAT_PARSE, EXPAT_RESET }; if (objc < 2) { Tcl_WrongNumArgs(interp, 1, objv, "method ?args?"); return TCL_ERROR; } if (Tcl_GetIndexFromObj(interp, objv[1], options, "option", 0, &index) != TCL_OK) { return TCL_ERROR; } switch ((enum options) index) { case EXPAT_CONFIGURE: result = TclExpatConfigure(interp, (TclExpatInfo *) clientData, objc - 2, objv + 2); break; case EXPAT_CGET: result = TclExpatCget(interp, (TclExpatInfo *) clientData, objc - 2, objv + 2); break; case EXPAT_PARSE: if (objc != 3) { Tcl_WrongNumArgs(interp, 2, objv, "data"); return TCL_ERROR; } data = Tcl_GetStringFromObj(objv[2], &len); result = TclExpatParse(interp, expat, data, len); break; case EXPAT_RESET: if (objc > 2) { Tcl_WrongNumArgs(interp, 1, objv, ""); return TCL_ERROR; } /* * Destroy the parser and create a fresh one. */ TclExpatFreeParser(expat); TclExpatCreateParser(interp, expat); break; default: Tcl_SetResult(interp, "unknown method", NULL); return TCL_ERROR; } return result; } /* *---------------------------------------------------------------------------- * * TclExpatParse -- * * Wrapper to invoke expat parser and check return result. * * Results: * TCL_OK if no errors, TCL_ERROR otherwise. * * Side effects: * Sets interpreter result as appropriate. * *---------------------------------------------------------------------------- */ int TclExpatParse (interp, expat, data, len) Tcl_Interp *interp; TclExpatInfo *expat; char *data; size_t len; { int result; char s[255]; expat->status = TCL_OK; if (expat->result != NULL) { Tcl_DecrRefCount(expat->result); } expat->result = NULL; result = XML_Parse(expat->parser, data, len, expat->final); if (!result) { Tcl_ResetResult(interp); sprintf(s, "%d", XML_GetCurrentLineNumber(expat->parser)); Tcl_AppendResult(interp, "error \"", XML_ErrorString(XML_GetErrorCode(expat->parser)), "\" at line ", s, " character ", NULL); sprintf(s, "%d", XML_GetCurrentColumnNumber(expat->parser)); Tcl_AppendResult(interp, s, NULL); return TCL_ERROR; } switch (expat->status) { case TCL_OK: case TCL_BREAK: case TCL_CONTINUE: Tcl_ResetResult(interp); return TCL_OK; case TCL_ERROR: Tcl_SetObjResult(interp, expat->result); return TCL_ERROR; default: Tcl_SetResult(interp, "unknown parsing status", NULL); return TCL_ERROR; } } /* *---------------------------------------------------------------------------- * * TclExpatConfigure -- * * Implements instance command for expat class objects. * * Results: * Depends on the method. * * Side effects: * Depends on the method. * *---------------------------------------------------------------------------- */ int TclExpatConfigure (interp, expat, objc, objv) Tcl_Interp *interp; TclExpatInfo *expat; int objc; Tcl_Obj *CONST objv[]; { static CONST_XOTCL_EXPAT char *switchTable[] = { "-final", "-baseurl", "-elementstartcommand", "-elementendcommand", "-characterdatacommand", "-processinginstructioncommand", "-defaultcommand", "-unparsedentitydeclcommand", "-notationdeclcommand", "-externalentitycommand", "-unknownencodingcommand", (char *) NULL }; enum switches { EXPAT_FINAL, EXPAT_BASE, EXPAT_ELEMENTSTARTCMD, EXPAT_ELEMENTENDCMD, EXPAT_DATACMD, EXPAT_PICMD, EXPAT_DEFAULTCMD, EXPAT_UNPARSEDENTITYCMD, EXPAT_NOTATIONCMD, EXPAT_EXTERNALENTITYCMD, EXPAT_UNKNOWNENCODINGCMD }; int index, bool, doParse = 0; Tcl_Obj *CONST *objPtr = objv; while (objc > 1) { if (Tcl_GetIndexFromObj(interp, objPtr[0], switchTable, "switch", 0, &index) != TCL_OK) { return TCL_ERROR; } switch ((enum switches) index) { case EXPAT_FINAL: /* -final */ if (Tcl_GetBooleanFromObj(interp, objPtr[1], &bool) != TCL_OK) { return TCL_ERROR; } if (bool && !expat->final) { expat->final = bool; doParse = 1; } else if (!bool && expat->final) { /* * Reset the parser for new input */ TclExpatFreeParser(expat); TclExpatCreateParser(interp, expat); doParse = 0; } break; case EXPAT_BASE: /* -base */ if (XML_SetBase(expat->parser, Tcl_GetString(objPtr[1])) == 0) { Tcl_SetResult(interp, "unable to set base URL", NULL); return TCL_ERROR; } break; case EXPAT_ELEMENTSTARTCMD: /* -elementstartcommand */ if (expat->elementstartcommand != NULL) { Tcl_DecrRefCount(expat->elementstartcommand); } expat->elementstartcommand = objPtr[1]; Tcl_IncrRefCount(expat->elementstartcommand); break; case EXPAT_ELEMENTENDCMD: /* -elementendcommand */ if (expat->elementendcommand != NULL) { Tcl_DecrRefCount(expat->elementendcommand); } expat->elementendcommand = objPtr[1]; Tcl_IncrRefCount(expat->elementendcommand); break; case EXPAT_DATACMD: /* -characterdatacommand */ if (expat->datacommand != NULL) { Tcl_DecrRefCount(expat->datacommand); } expat->datacommand = objPtr[1]; Tcl_IncrRefCount(expat->datacommand); break; case EXPAT_PICMD: /* -processinginstructioncommand */ if (expat->picommand != NULL) { Tcl_DecrRefCount(expat->picommand); } expat->picommand = objPtr[1]; Tcl_IncrRefCount(expat->picommand); break; case EXPAT_DEFAULTCMD: /* -defaultcommand */ if (expat->defaultcommand != NULL) { Tcl_DecrRefCount(expat->defaultcommand); } expat->defaultcommand = objPtr[1]; Tcl_IncrRefCount(expat->defaultcommand); break; case EXPAT_UNPARSEDENTITYCMD: /* -unparsedentitydeclcommand */ if (expat->unparsedcommand != NULL) { Tcl_DecrRefCount(expat->unparsedcommand); } expat->unparsedcommand = objPtr[1]; Tcl_IncrRefCount(expat->unparsedcommand); break; case EXPAT_NOTATIONCMD: /* -notationdeclcommand */ if (expat->notationcommand != NULL) { Tcl_DecrRefCount(expat->notationcommand); } expat->notationcommand = objPtr[1]; Tcl_IncrRefCount(expat->notationcommand); break; case EXPAT_EXTERNALENTITYCMD: /* -externalentitycommand */ if (expat->externalentitycommand != NULL) { Tcl_DecrRefCount(expat->externalentitycommand); } expat->externalentitycommand = objPtr[1]; Tcl_IncrRefCount(expat->externalentitycommand); break; case EXPAT_UNKNOWNENCODINGCMD: /* -unknownencodingcommand */ /* Not implemented */ break; if (expat->unknownencodingcommand != NULL) { Tcl_DecrRefCount(expat->unknownencodingcommand); } expat->unknownencodingcommand = objPtr[1]; Tcl_IncrRefCount(expat->unknownencodingcommand); break; } objPtr += 2; objc -= 2; } if (doParse) { return TclExpatParse(interp, expat->parser, "", 0); } else { return TCL_OK; } } /* *---------------------------------------------------------------------------- * * TclExpatCget -- * * Returns setting of configuration option. * Not yet implemented. * * Results: * Option value. * * Side effects: * None. * *---------------------------------------------------------------------------- */ int TclExpatCget (interp, expat, objc, objv) Tcl_Interp *interp; TclExpatInfo *expat; int objc; Tcl_Obj *CONST objv[]; { Tcl_SetResult(interp, "method not implemented", NULL); return TCL_ERROR; } /* *---------------------------------------------------------------------------- * * TclExpatHandlerResult -- * * Manage the result of the application callback. * * Results: * None. * * Side Effects: * Further invocation of callback scripts may be inhibited. * *---------------------------------------------------------------------------- */ void TclExpatHandlerResult(expat, result) TclExpatInfo *expat; int result; { switch (result) { case TCL_OK: expat->status = TCL_OK; break; case TCL_CONTINUE: /* * Skip callbacks until the matching end element event * occurs for the currently open element. * Keep a reference count to handle nested * elements. */ expat->status = TCL_CONTINUE; expat->continueCount = 1; break; case TCL_BREAK: /* * Skip all further callbacks, but return OK. */ expat->status = TCL_BREAK; break; case TCL_ERROR: /* * Skip all further callbacks, and return error. */ default: expat->status = TCL_ERROR; expat->result = Tcl_GetObjResult(expat->interp); Tcl_IncrRefCount(expat->result); break; } } /* *---------------------------------------------------------------------------- * * TclExpatElementStartHandler -- * * Called by expat for each start tag. * * Results: * None. * * Side Effects: * Callback script is invoked. * *---------------------------------------------------------------------------- */ static void * TclExpatElementStartHandler(userData, name, atts) void *userData; const char *name; const char **atts; { TclExpatInfo *expat = (TclExpatInfo *) userData; Tcl_Obj *atList, *cmdPtr; const char **atPtr; int result; if (expat->status == TCL_CONTINUE) { /* * We're currently skipping elements looking for the * close of the continued element. */ expat->continueCount++; return NULL; } if (expat->elementstartcommand == NULL || expat->status != TCL_OK) { return NULL; } /* * Convert the attribute list into a Tcl key-value paired list. */ atList = Tcl_NewListObj(0, NULL); for (atPtr = atts; atPtr[0] && atPtr[1]; atPtr += 2) { Tcl_ListObjAppendElement(expat->interp, atList, Tcl_NewStringObj((char *)atPtr[0], strlen(atPtr[0]))); Tcl_ListObjAppendElement(expat->interp, atList, Tcl_NewStringObj((char *)atPtr[1], strlen(atPtr[1]))); } /* * Take a copy of the callback script so that arguments may be appended. */ cmdPtr = Tcl_DuplicateObj(expat->elementstartcommand); Tcl_IncrRefCount(cmdPtr); Tcl_Preserve((ClientData) expat->interp); Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)name, strlen(name))); Tcl_ListObjAppendElement(expat->interp, cmdPtr, atList); /* * It would be desirable to be able to terminate parsing * if the return result is TCL_ERROR or TCL_BREAK. */ #if defined(PRE81) result = Tcl_GlobalEvalObj(expat->interp, cmdPtr); #elif defined(PRE82) result = Tcl_EvalObj(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #else result = Tcl_EvalObjEx(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #endif Tcl_DecrRefCount(cmdPtr); Tcl_Release((ClientData) expat->interp); TclExpatHandlerResult(expat, result); return NULL; } /* *---------------------------------------------------------------------------- * * TclExpatElementEndHandler -- * * Called by expat for each end tag. * * Results: * None. * * Side Effects: * Callback script is invoked. * *---------------------------------------------------------------------------- */ static void * TclExpatElementEndHandler(userData, name) void *userData; CONST char *name; { TclExpatInfo *expat = (TclExpatInfo *) userData; Tcl_Obj *cmdPtr; int result; if (expat->status == TCL_CONTINUE) { /* * We're currently skipping elements looking for the * end of the currently open element. */ if (!--(expat->continueCount)) { expat->status = TCL_OK; return NULL; } } if (expat->elementendcommand == NULL || expat->status != TCL_OK) { return NULL; } /* * Take a copy of the callback script so that arguments may be appended. */ cmdPtr = Tcl_DuplicateObj(expat->elementendcommand); Tcl_IncrRefCount(cmdPtr); Tcl_Preserve((ClientData) expat->interp); Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)name, strlen(name))); /* * It would be desirable to be able to terminate parsing * if the return result is TCL_ERROR or TCL_BREAK. */ #if defined(PRE81) result = Tcl_GlobalEvalObj(expat->interp, cmdPtr); #elif defined(PRE82) result = Tcl_EvalObj(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #else result = Tcl_EvalObjEx(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #endif Tcl_DecrRefCount(cmdPtr); Tcl_Release((ClientData) expat->interp); TclExpatHandlerResult(expat, result); return NULL; } /* *---------------------------------------------------------------------------- * * TclExpatCharacterDataHandler -- * * Called by expat for character data. * * Results: * None. * * Side Effects: * Callback script is invoked. * *---------------------------------------------------------------------------- */ static void * TclExpatCharacterDataHandler(userData, s, len) void *userData; CONST char *s; int len; { TclExpatInfo *expat = (TclExpatInfo *) userData; Tcl_Obj *cmdPtr; int result; if (expat->datacommand == NULL || expat->status != TCL_OK) { return NULL; } /* * Take a copy of the callback script so that arguments may be appended. */ cmdPtr = Tcl_DuplicateObj(expat->datacommand); Tcl_IncrRefCount(cmdPtr); Tcl_Preserve((ClientData) expat->interp); Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)s, len)); /* * It would be desirable to be able to terminate parsing * if the return result is TCL_ERROR or TCL_BREAK. */ #if defined(PRE81) result = Tcl_GlobalEvalObj(expat->interp, cmdPtr); #elif defined(PRE82) result = Tcl_EvalObj(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #else result = Tcl_EvalObjEx(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #endif Tcl_DecrRefCount(cmdPtr); Tcl_Release((ClientData) expat->interp); TclExpatHandlerResult(expat, result); return NULL; } /* *---------------------------------------------------------------------------- * * TclExpatProcessingInstructionHandler -- * * Called by expat for processing instructions. * * Results: * None. * * Side Effects: * Callback script is invoked. * *---------------------------------------------------------------------------- */ static void * TclExpatProcessingInstructionHandler(userData, target, data) void *userData; CONST char *target; CONST char *data; { TclExpatInfo *expat = (TclExpatInfo *) userData; Tcl_Obj *cmdPtr; int result; if (expat->picommand == NULL || expat->status != TCL_OK) { return NULL; } /* * Take a copy of the callback script so that arguments may be appended. */ cmdPtr = Tcl_DuplicateObj(expat->picommand); Tcl_IncrRefCount(cmdPtr); Tcl_Preserve((ClientData) expat->interp); Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)target, strlen(target))); Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)data, strlen(data))); /* * It would be desirable to be able to terminate parsing * if the return result is TCL_ERROR or TCL_BREAK. */ #if defined(PRE81) result = Tcl_GlobalEvalObj(expat->interp, cmdPtr); #elif defined(PRE82) result = Tcl_EvalObj(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #else result = Tcl_EvalObjEx(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #endif Tcl_DecrRefCount(cmdPtr); Tcl_Release((ClientData) expat->interp); TclExpatHandlerResult(expat, result); return NULL; } /* *---------------------------------------------------------------------------- * * TclExpatDefaultHandler -- * * Called by expat for processing data which has no other handler. * * Results: * None. * * Side Effects: * Callback script is invoked. * *---------------------------------------------------------------------------- */ static void * TclExpatDefaultHandler(userData, s, len) void *userData; CONST char *s; int len; { TclExpatInfo *expat = (TclExpatInfo *) userData; Tcl_Obj *cmdPtr; int result; if (expat->defaultcommand == NULL || expat->status != TCL_OK) { return NULL; } /* * Take a copy of the callback script so that arguments may be appended. */ cmdPtr = Tcl_DuplicateObj(expat->defaultcommand); Tcl_IncrRefCount(cmdPtr); Tcl_Preserve((ClientData) expat->interp); Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)s, len)); /* * It would be desirable to be able to terminate parsing * if the return result is TCL_ERROR or TCL_BREAK. */ #if defined(PRE81) result = Tcl_GlobalEvalObj(expat->interp, cmdPtr); #elif defined(PRE82) result = Tcl_EvalObj(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #else result = Tcl_EvalObjEx(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #endif Tcl_DecrRefCount(cmdPtr); Tcl_Release((ClientData) expat->interp); TclExpatHandlerResult(expat, result); return NULL; } /* *---------------------------------------------------------------------------- * * TclExpatUnparsedDeclHandler -- * * Called by expat for processing an unparsed entity references. * * Results: * None. * * Side Effects: * Callback script is invoked. * *---------------------------------------------------------------------------- */ static void * TclExpatUnparsedDeclHandler(userData, entityname, base, systemId, publicId, notationName) void *userData; CONST char *entityname; CONST char *base; CONST char *systemId; CONST char *publicId; CONST char *notationName; { TclExpatInfo *expat = (TclExpatInfo *) userData; Tcl_Obj *cmdPtr; int result; if (expat->unparsedcommand == NULL || expat->status != TCL_OK) { return NULL; } /* * Take a copy of the callback script so that arguments may be appended. */ cmdPtr = Tcl_DuplicateObj(expat->unparsedcommand); Tcl_IncrRefCount(cmdPtr); Tcl_Preserve((ClientData) expat->interp); Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)entityname, strlen(entityname))); Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)base, strlen(base))); Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)systemId, strlen(systemId))); if (publicId == NULL) { Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewListObj(0, NULL)); } else { Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)publicId, strlen(publicId))); } if (notationName == NULL) { Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewListObj(0, NULL)); } else { Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)notationName, strlen(notationName))); } /* * It would be desirable to be able to terminate parsing * if the return result is TCL_ERROR or TCL_BREAK. */ #if defined(PRE81) result = Tcl_GlobalEvalObj(expat->interp, cmdPtr); #elif defined(PRE82) result = Tcl_EvalObj(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #else result = Tcl_EvalObjEx(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #endif Tcl_DecrRefCount(cmdPtr); Tcl_Release((ClientData) expat->interp); TclExpatHandlerResult(expat, result); return NULL; } /* *---------------------------------------------------------------------------- * * TclExpatNotationDeclHandler -- * * Called by expat for processing a notation declaration. * * Results: * None. * * Side Effects: * Callback script is invoked. * *---------------------------------------------------------------------------- */ static void * TclExpatNotationDeclHandler(userData, notationName, base, systemId, publicId) void *userData; CONST char *notationName; CONST char *base; CONST char *systemId; CONST char *publicId; { TclExpatInfo *expat = (TclExpatInfo *) userData; Tcl_Obj *cmdPtr; int result; if (expat->notationcommand == NULL || expat->status != TCL_OK) { return NULL; } /* * Take a copy of the callback script so that arguments may be appended. */ cmdPtr = Tcl_DuplicateObj(expat->notationcommand); Tcl_IncrRefCount(cmdPtr); Tcl_Preserve((ClientData) expat->interp); Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)notationName, strlen(notationName))); Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)base, strlen(base))); if (systemId == NULL) { Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewListObj(0, NULL)); } else { Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)systemId, strlen(systemId))); } if (publicId == NULL) { Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewListObj(0, NULL)); } else { Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)publicId, strlen(publicId))); } /* * It would be desirable to be able to terminate parsing * if the return result is TCL_ERROR or TCL_BREAK. */ #if defined(PRE81) result = Tcl_GlobalEvalObj(expat->interp, cmdPtr); #elif defined(PRE82) result = Tcl_EvalObj(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #else result = Tcl_EvalObjEx(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #endif Tcl_DecrRefCount(cmdPtr); Tcl_Release((ClientData) expat->interp); TclExpatHandlerResult(expat, result); return NULL; } /* *---------------------------------------------------------------------------- * * TclExpatUnknownEncodingHandler -- * * Called by expat for processing a reference to a character in an * unknown encoding. * * Results: * None. * * Side Effects: * Callback script is invoked. * *---------------------------------------------------------------------------- */ static int TclExpatUnknownEncodingHandler(encodingHandlerData, name, info) void *encodingHandlerData; CONST char *name; XML_Encoding *info; { TclExpatInfo *expat = (TclExpatInfo *) encodingHandlerData; Tcl_Obj *cmdPtr; int result; Tcl_SetResult(expat->interp, "not implemented", NULL); return 0; if (expat->unknownencodingcommand == NULL || expat->status != TCL_OK) { return 0; } /* * Take a copy of the callback script so that arguments may be appended. */ cmdPtr = Tcl_DuplicateObj(expat->unknownencodingcommand); Tcl_IncrRefCount(cmdPtr); Tcl_Preserve((ClientData) expat->interp); /* * Setup the arguments */ /* * It would be desirable to be able to terminate parsing * if the return result is TCL_ERROR or TCL_BREAK. */ #if defined(PRE81) result = Tcl_GlobalEvalObj(expat->interp, cmdPtr); #elif defined(PRE82) result = Tcl_EvalObj(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #else result = Tcl_EvalObjEx(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #endif Tcl_DecrRefCount(cmdPtr); Tcl_Release((ClientData) expat->interp); TclExpatHandlerResult(expat, result); /* * NOTE: have to decide whether to return 0 or 1 here, * since Expat is waiting for an answer. */ return 0; } /* *---------------------------------------------------------------------------- * * TclExpatExternalEntityRefHandler -- * * Called by expat for processing external entity references. * * Results: * None. * * Side Effects: * Callback script is invoked. * *---------------------------------------------------------------------------- */ static void * TclExpatExternalEntityRefHandler(parser, openEntityNames, base, systemId, publicId) XML_Parser parser; CONST char *openEntityNames; CONST char *base; CONST char *systemId; CONST char *publicId; { TclExpatInfo *expat = (TclExpatInfo *) XML_GetUserData(parser); Tcl_Obj *cmdPtr; int result; if (expat->externalentitycommand == NULL || expat->status != TCL_OK) { return NULL; } /* * Take a copy of the callback script so that arguments may be appended. */ cmdPtr = Tcl_DuplicateObj(expat->externalentitycommand); Tcl_IncrRefCount(cmdPtr); Tcl_Preserve((ClientData) expat->interp); Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)openEntityNames, strlen(openEntityNames))); Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)base, strlen(base))); Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)systemId, strlen(systemId))); Tcl_ListObjAppendElement(expat->interp, cmdPtr, Tcl_NewStringObj((char *)publicId, strlen(publicId))); /* * It would be desirable to be able to terminate parsing * if the return result is TCL_ERROR or TCL_BREAK. */ #if defined(PRE81) result = Tcl_GlobalEvalObj(expat->interp, cmdPtr); #elif defined(PRE82) result = Tcl_EvalObj(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #else result = Tcl_EvalObjEx(expat->interp, cmdPtr, TCL_EVAL_GLOBAL); #endif Tcl_DecrRefCount(cmdPtr); Tcl_Release((ClientData) expat->interp); TclExpatHandlerResult(expat, result); return NULL; } /* *---------------------------------------------------------------------------- * * TclExpatDeleteCmd -- * * Called when a expat parser is deleted. * * Results: * None. * * Side Effects: * Memory structures are freed. * *---------------------------------------------------------------------------- */ static void TclExpatDeleteCmd(clientData) ClientData clientData; { TclExpatInfo *expat = (TclExpatInfo *) clientData; TclExpatFreeParser(expat); Tcl_DecrRefCount(expat->name); if (expat->elementstartcommand) { Tcl_DecrRefCount(expat->elementstartcommand); } if (expat->elementendcommand) { Tcl_DecrRefCount(expat->elementendcommand); } if (expat->datacommand) { Tcl_DecrRefCount(expat->datacommand); } if (expat->picommand) { Tcl_DecrRefCount(expat->picommand); } if (expat->externalentitycommand) { Tcl_DecrRefCount(expat->externalentitycommand); } }