xmlParserCtxtPtr
RS_XML_xmlCreateConnectionParserCtxt(USER_OBJECT_ con)
{
xmlParserInputBufferPtr buf;
xmlParserCtxtPtr ctx = NULL;
#ifdef LIBXML2
ctx = xmlNewParserCtxt();
#ifndef LIBXML2_NEW_BUFFER // < 2.9.1
ctx->_private = (USER_OBJECT_) con;
/* R_chk_calloc */
buf = (xmlParserInputBufferPtr) calloc(1, sizeof(xmlParserInputBuffer));
buf->readcallback = RS_XML_readConnectionInput;
buf->context = (void*) ctx;
buf->raw = NULL; /* buf->buffer; */
xmlBufferPtr tmp = xmlBufferCreate();
buf->buffer = tmp;
#else
RFunCtxData *userData = (RFunCtxData *) R_alloc(sizeof(RFunCtxData), 1);
userData->fun = con;
userData->ctx = ctx;
buf = xmlParserInputBufferCreateIO(RS_XML_readConnectionInput, NULL, userData, XML_CHAR_ENCODING_NONE);
#endif
xmlParserInputPtr input = xmlNewIOInputStream(ctx, buf, XML_CHAR_ENCODING_NONE);
if(!input) {
PROBLEM "can't create new IOInputStream"
ERROR;
}
inputPush(ctx, input);
#endif
return(ctx);
}
/* call-seq:
* XML::Parser::Context.io(io) -> XML::Parser::Context
*
* Creates a new parser context based on the specified io object.
*
* Parameters:
*
* io - A ruby IO object.
*/
static VALUE rxml_parser_context_io(VALUE klass, VALUE io)
{
xmlParserCtxtPtr ctxt;
xmlParserInputBufferPtr input;
xmlParserInputPtr stream;
input = xmlParserInputBufferCreateIO((xmlInputReadCallback) rxml_read_callback, NULL,
(void*)io, XML_CHAR_ENCODING_NONE);
ctxt = xmlNewParserCtxt();
if (!ctxt)
{
xmlFreeParserInputBuffer(input);
rxml_raise(&xmlLastError);
}
stream = xmlNewIOInputStream(ctxt, input, XML_CHAR_ENCODING_NONE);
if (!stream)
{
xmlFreeParserInputBuffer(input);
xmlFreeParserCtxt(ctxt);
rxml_raise(&xmlLastError);
}
inputPush(ctxt, stream);
return rxml_parser_context_wrap(ctxt);
}
/* Taken from libxml2, xmlSAXParseMemoryWithData */
xmlDocPtr mxslt_doc_xml_load_entity(mxslt_doc_t * document, char * localfile) {
xmlParserCtxtPtr ctx;
xmlParserInputPtr input;
xmlDocPtr retval;
xmlChar * filename;
mxslt_doc_debug_print(document, MXSLT_DBG_LIBXML | MXSLT_DBG_DEBUG | MXSLT_DBG_VERBOSE0,
"load_entity/xmlCreateMemoryParserCtxt -- replacing entities: %08x\n", xmlSubstituteEntitiesDefaultValue);
/* SNIPPET: This is a good mix&shake of
* xmlCreateMemoryParserCtxt, xmlCreateFileParserCtxt */
ctx=xmlNewParserCtxt();
if(ctx == NULL)
return NULL;
#if LIBXML_VERSION >= 20600
xmlCtxtUseOptions(ctx, MXSLT_XSLT_OPTIONS);
#endif
/* Remember which document we are parsing
* in this context */
/* ctx->_private=document; */
filename=xmlCanonicPath((xmlChar *)localfile);
if(filename == NULL) {
xmlFreeParserCtxt(ctx);
return NULL;
}
input=xmlLoadExternalEntity((char *)filename, NULL, ctx);
xmlFree(filename);
if(input == NULL) {
xmlFreeParserCtxt(ctx);
return NULL;
}
inputPush(ctx, input);
if(ctx->directory == NULL)
ctx->directory=xmlParserGetDirectory(localfile);
/* END SNIPPET */
/* MXSLT_DUMP_CTX(ctx); */
/* Parse document */
xmlParseDocument(ctx);
if(ctx->wellFormed)
retval=ctx->myDoc;
else {
retval=NULL;
xmlFreeDoc(ctx->myDoc);
ctx->myDoc=NULL;
}
xmlFreeParserCtxt(ctx);
return retval;
}
static void testCharRanges(void) {
char data[5];
xmlParserCtxtPtr ctxt;
xmlParserInputBufferPtr buf;
xmlParserInputPtr input;
memset(data, 0, 5);
/*
* Set up a parsing context using the above data buffer as
* the current input source.
*/
ctxt = xmlNewParserCtxt();
if (ctxt == NULL) {
fprintf(stderr, "Failed to allocate parser context\n");
return;
}
buf = xmlParserInputBufferCreateStatic(data, sizeof(data),
XML_CHAR_ENCODING_NONE);
if (buf == NULL) {
fprintf(stderr, "Failed to allocate input buffer\n");
goto error;
}
input = xmlNewInputStream(ctxt);
if (input == NULL) {
xmlFreeParserInputBuffer(buf);
goto error;
}
input->filename = NULL;
input->buf = buf;
input->cur =
input->base = xmlBufContent(input->buf->buffer);
input->end = input->base + 4;
inputPush(ctxt, input);
printf("testing char range: 1");
fflush(stdout);
testCharRangeByte1(ctxt, data);
printf(" 2");
fflush(stdout);
testCharRangeByte2(ctxt, data);
printf(" 3");
fflush(stdout);
testCharRangeByte3(ctxt, data);
printf(" 4");
fflush(stdout);
testCharRangeByte4(ctxt, data);
printf(" done\n");
fflush(stdout);
error:
xmlFreeParserCtxt(ctxt);
}
/*
* Read xmlDocument from server
*/
static xmlDoc *
js_document_read (xmlParserCtxtPtr ctxt, js_session_t *jsp,
const char *url, const char *encoding, int options)
{
xmlParserInputBufferPtr input;
xmlParserInputPtr stream;
xmlDoc *docp;
if (jsp == NULL || ctxt == NULL || jsp->js_state == JSS_DEAD)
return NULL;
xmlCtxtReset(ctxt);
input = js_buffer_create(jsp, XML_CHAR_ENCODING_NONE);
if (input == NULL)
return NULL;
input->closecallback = NULL;
stream = xmlNewIOInputStream(ctxt, input, XML_CHAR_ENCODING_NONE);
if (stream == NULL) {
xmlFreeParserInputBuffer(input);
return NULL;
}
inputPush(ctxt, stream);
xmlCtxtUseOptions(ctxt, options);
xmlCharEncodingHandlerPtr hdlr;
if (encoding && ((hdlr = xmlFindCharEncodingHandler(encoding)) != NULL))
xmlSwitchToEncoding(ctxt, hdlr);
if (url != NULL && ctxt->input != NULL && ctxt->input->filename == NULL)
ctxt->input->filename = (char *) xmlStrdup((const xmlChar *) url);
/*
* All right. The stage is set, time to open the curtain and let
* the show begin.
*/
xmlParseDocument(ctxt);
docp = ctxt->myDoc;
ctxt->myDoc = NULL;
if (docp && !ctxt->wellFormed) {
xmlFreeDoc(docp);
docp = NULL;
}
return docp;
}
/* Taken from libxml2, xmlSAXParseMemoryWithData */
xmlDocPtr mxslt_doc_xml_parse(mxslt_doc_t * document, xmlParserInputBufferPtr buf, char * localfile) {
xmlParserCtxtPtr ctx;
xmlParserInputPtr input;
xmlDocPtr retval;
mxslt_doc_debug_print(document, MXSLT_DBG_LIBXML | MXSLT_DBG_DEBUG | MXSLT_DBG_VERBOSE0,
"xml_parse/xmlCreateMemoryParserCtxt -- replacing entities: %08x\n", xmlSubstituteEntitiesDefaultValue);
if(buf == NULL)
return NULL;
/* SNIPPET: This is a good mix&shake of
* xmlCreateMemoryParserCtxt, xmlCreateFileParserCtxt */
ctx=xmlNewParserCtxt();
if(ctx == NULL) {
xmlFreeParserInputBuffer(buf);
return NULL;
}
#if LIBXML_VERSION >= 20600
xmlCtxtUseOptions(ctx, MXSLT_XSLT_OPTIONS);
#endif
/* Default are no longer changed... since 2.6.0 they
* are completely ignored, leading to broken modxslt :|| */
if(ctx->sax) {
ctx->sax->resolveEntity=mxslt_sax_resolve_entity;
ctx->sax->processingInstruction=mxslt_sax_processing_instruction;
}
/* Remember which document we are parsing
* in this context */
/* ctx->_private=document; */
input=xmlNewInputStream(ctx);
if(input == NULL) {
xmlFreeParserInputBuffer(buf);
xmlFreeParserCtxt(ctx);
return NULL;
}
input->filename=(char *)xmlCanonicPath((xmlChar *)localfile);
if(input->filename == NULL) {
xmlFreeParserCtxt(ctx);
xmlFreeParserInputBuffer(buf);
xmlFreeInputStream(input);
return NULL;
}
input->buf=buf;
#if LIBXML_VERSION < 20900
input->base=input->buf->buffer->content;
input->cur=input->buf->buffer->content;
input->end=&input->buf->buffer->content[input->buf->buffer->use];
#else
/* With libxml2 2.9.0, the buffer struct can only be accessed through
* methods. */
input->base=xmlBufContent(input->buf->buffer);
input->cur=xmlBufContent(input->buf->buffer);
input->end=xmlBufEnd(input->buf->buffer);
#endif
inputPush(ctx, input);
if(ctx->directory == NULL)
ctx->directory=xmlParserGetDirectory(localfile);
/* END SNIPPET */
if(mxslt_doc_debug_level(document, MXSLT_DBG_LIBXML | MXSLT_DBG_DEBUG | MXSLT_DBG_VERBOSE2))
mxslt_doc_dump_ctx(ctx, document);
/* Parse document */
xmlParseDocument(ctx);
if(ctx->wellFormed)
retval=ctx->myDoc;
else {
retval=NULL;
xmlFreeDoc(ctx->myDoc);
ctx->myDoc=NULL;
}
xmlFreeParserCtxt(ctx);
/* xmlFreeParserInputBuffer(buf); */
return retval;
}
void evalOpcode(unsigned char opcode) {
int i;
int16 opr1, opr2, opr3;
unsigned int16 genPurpose = 0;
if (opcode & 0b10000000) {
genPurpose = gblMemPtr + 2;
gblMemPtr = ((((unsigned int16)opcode & 0b00111111) << 8) + 2*fetchNextOpcode());
opr1 = fetchNextOpcode();
if (opcode & 0b01000000) {
for (i = 0; i < (opr1 + 3); i++) {
inputPop();
}
}
for (i = 0; i < opr1; i++) {
inputPush (stkPop());
}
inputPush (gblStkPtr);
inputPush (genPurpose);
inputPush(gblInputStkPtr - (opr1 + 2));
return;
}
switch (opcode) {
case CODE_END:
gblLogoIsRunning = 0;
output_low (RUN_LED);
// clear thes variables just in case.
gblLoopAddress = 0;
gblRepeatCount = 0;
break;
case NUM8:
int8 Hi3 = fetchNextOpcode();
stkPush(Hi3);
break;
case NUM16:
int8 Hi2 = fetchNextOpcode();
int8 Lo2 = fetchNextOpcode();
unsigned int16 teste4 = Hi2 << 8;
teste4 += Lo2;
stkPush (teste4);
break;
case LIST:
stkPush(gblMemPtr + 2); //incremento de 2 em 2
gblMemPtr += (2 * fetchNextOpcode());
break;
case EOL:
genPurpose = stkPop();
if (genPurpose > gblMemPtr) {
//printf(usb_cdc_putc,"genPurpose >>>> gblMemPtr");
gblMemPtr = genPurpose;
} else {
//printf(usb_cdc_putc,"genPurpose <<<< gblMemPtr");
gblMemPtr = genPurpose;
gblRepeatCount = stkPop(); // repeat count
//printf(usb_cdc_putc," gblRepeatCount %Lu \n",genPurpose);
if (gblRepeatCount > 1)
gblRepeatCount--;
if (gblRepeatCount != 1) {
stkPush (gblRepeatCount);
stkPush (gblMemPtr);
}
}
break;
case EOLR:
if (stkPop()) { // if condition is true
stkPop(); // throw away the loop address
gblMemPtr = stkPop(); // fetch the next command address
} else { // if condition if false -> keep on looping.
gblMemPtr = stkPop();
stkPush (gblMemPtr);
delay_ms(5); // this prevents the waituntil loop to execute too rapidly
// which has proven to cause some problems when reading sensor values.
}
break;
case LTHING:
genPurpose = 2 * fetchNextOpcode(); // index of the input variable
opr1 = inputPop(); // base address in the input stack
inputPush(opr1); // push the base address back to the stack.
stkPush (gblInputStack[opr1 + genPurpose]);
break;
case STOP:
case OUTPUT:
if (opcode == OUTPUT){
genPurpose = stkPop(); // this is the output value
}
opr1 = inputPop(); // this is the proc-input stack base address
gblMemPtr = inputPop(); // this is the return address
opr2 = inputPop(); // this is the data stack index;
// remove any remaining data that belongs to the current procedure from the data stack
// Usually this is important for the STOP opcode.
while (gblStkPtr > opr2){
stkPop();
}
// remove the procedure inputs from the input stack
while (gblInputStkPtr > opr1){
inputPop();
}
// Output will push the output to the stack
if (opcode == OUTPUT){
stkPush (genPurpose);
}
break;
case REPEAT:
gblLoopAddress = stkPop();
gblRepeatCount = stkPop();
// these will be poped by EOL
stkPush (gblMemPtr); // address after repeat is complete
if (gblRepeatCount > 1) {
stkPush (gblRepeatCount);
stkPush (gblLoopAddress); // address while still repeating
gblMemPtr = gblLoopAddress;
} else if (gblRepeatCount == 1) {
gblMemPtr = gblLoopAddress;
} else { // if loop count = 0
gblMemPtr = stkPop();
}
break;
case COND_IF:
opr1 = stkPop(); // if true pointer address
opr2 = stkPop(); // condition
if (opr2) {
stkPush(gblMemPtr);
gblMemPtr = opr1;
}
break;
case COND_IFELSE:
opr1 = stkPop(); // if false pointer address
opr2 = stkPop(); // if true pointer address
opr3 = stkPop(); // condition
stkPush(gblMemPtr);
if (opr3) {
gblMemPtr = opr2;
} else {
gblMemPtr = opr1;
}
break;
case BEEP:
beep();
break;
case WAITUNTIL:
gblLoopAddress = stkPop();
// these will be poped by EOLR
stkPush(gblMemPtr); // address after repeat is complete
stkPush (gblLoopAddress); // address while still repeating
gblMemPtr = gblLoopAddress;
break;
case LOOP:
gblLoopAddress = stkPop(); // the begining of loop
gblRepeatCount = 0; // disable this counter (loop forever)
stkPush(0); // this distinguishes LOOP from Repeat. (see EOL)
stkPush(gblLoopAddress); // push loop address back into the stack
// so that EOL will loop
gblMemPtr = gblLoopAddress;
break;
case WAIT:
gblWaitCounter = stkPop() * 4;
break;
case TIMER:
stkPush(gblTimer); // gblTimer increases every 1ms. See in RTCC interrupt
break;
case RESETT:
gblTimer = 0;
break;
case SEND:
genPurpose = stkPop();
break;
case IR:
stkPush (gblMostRecentlyReceivedByte);
gblNewByteHasArrivedFlag = 0;
break;
case NEWIR:
stkPush (gblNewByteHasArrivedFlag);
break;
case RANDOM:
stkPush (rand());
break;
case OP_PLUS:
case OP_MINUS:
case OP_MULTIPLY:
case OP_DIVISION:
case OP_REMAINDER:
case OP_EQUAL:
case OP_GREATER:
case OP_LESS:
case OP_AND:
case OP_OR:
case OP_XOR:
opr2=stkPop(); // second operand
opr1=stkPop();// first operand
switch (opcode) {
case OP_PLUS:
opr1+=opr2;
break;
case OP_MINUS:
opr1-=opr2;
break;
case OP_MULTIPLY:
opr1*=opr2;
break;
case OP_DIVISION:
opr1/=opr2;
break;
case OP_REMAINDER:
opr1%=opr2;
break;
case OP_EQUAL:
opr1=(opr1==opr2);
break;
case OP_GREATER:
opr1=(opr1>opr2);
break;
case OP_LESS:
opr1=(opr1<opr2);
break;
case OP_AND:
opr1=(opr1&&opr2);
break;
case OP_OR:
opr1=(opr1||opr2);
break;
case OP_XOR:
opr1=(opr1^opr2);
break;
};
stkPush(opr1);
break;
case OP_NOT:
stkPush(!stkPop());
break;
case SETGLOBAL:
genPurpose = stkPop();// this is the value
globalVariables[stkPop()] = genPurpose;
break;
case GETGLOBAL:
stkPush(globalVariables[stkPop()]);
break;
case ASET:
opr2 = stkPop();// this is the value to be stored
opr1 = stkPop() * 2;// this is the array index. Each entry is two bytes wide.
genPurpose = ARRAY_BASE_ADDRESS + stkPop();// this is the base address of the array.
flashSetWordAddress(genPurpose + opr1);
flashWrite(opr2);
break;
case AGET:
opr1 = stkPop() * 2;// this is the array index. Each entry is two bytes wide.
genPurpose = ARRAY_BASE_ADDRESS + stkPop();// this is the base address of the array.
opr2 = read_program_eeprom(genPurpose + opr1);
stkPush(opr2);
break;
case RECORD:
genPurpose = stkPop();
// PCM parts (14 bit PICs like the 16F877) uses an external EEPROM for data Logging storage
flashSetWordAddress(RECORD_BASE_ADDRESS + gblRecordPtr++);
flashWrite(genPurpose);
// save current record pointer location
flashSetWordAddress(MEM_PTR_LOG_BASE_ADDRESS);
flashWrite(gblRecordPtr);
break;
case RECALL:
genPurpose = read_program_eeprom(RECORD_BASE_ADDRESS + gblRecordPtr++);
stkPush(genPurpose);
break;
case RESETDP:
gblRecordPtr = 0;
break;
case SETDP:
gblRecordPtr = stkPop() * 2;
break;
case ERASE:
opr1 = stkPop() * 2;
for (genPurpose=0; genPurpose<opr1; genPurpose++) {
flashSetWordAddress(RECORD_BASE_ADDRESS + genPurpose);
flashWrite(0);
}
gblRecordPtr = 0;
break;
case OPC_MOTORS_OFF:
motors_off();
break;
case OPC_MOTORS_THATWAY:
motors_that_way();
break;
case OPC_MOTORS_THISWAY:
motors_this_way();
break;
case OPC_MOTORS_REVERT:
motors_reverse();
break;
case OPC_MOTORS_ON_FOR:
case OPC_MOTORS_ON:
motors_on();
if (opcode == OPC_MOTORS_ON_FOR) {
set_on_for(stkPop()*4);
}
break;
case OPC_MOTORS_POWER:
motors_power(stkPop());
break;
case OPC_MOTORS_ANGLE:
motors_angle(stkPop());
break;
case OPC_ACTIVATE_MOTORS:
mtrsActive = stkPop();
break;
case REALLY_STOP:
start_stop_logo_machine = 1;
break;
case EB:
stkPush(read_program_eeprom(stkPop()));
break;
case DB:
opr1 = stkPop();
opr2 = stkPop();
flashSetWordAddress(opr2);
flashWrite(opr1);
break;
case LOW_BYTE:
stkPush(stkPop() & 0xff);
break;
case HIGH_BYTE:
stkPush(stkPop() >> 8);
break;
case SENSOR1:
case SENSOR2:
case SENSOR3:
case SENSOR4:
case SENSOR5:
case SENSOR6:
case SENSOR7:
case SENSOR8:
if (opcode < SENSOR3) {
i = opcode - SENSOR1;
} else {
i = opcode - SENSOR3 + 2;
}
stkPush(readSensor(i));
break;
case SWITCH1:
case SWITCH2:
case SWITCH3:
case SWITCH4:
case SWITCH5:
case SWITCH6:
case SWITCH7:
case SWITCH8:
if (opcode < SWITCH3) {
i = opcode - SWITCH1;
} else {
i = opcode - SWITCH3 + 2;
}
stkPush(readSensor(i)>>9);
break;
case ULED_ON:
output_high(USER_LED);
break;
case ULED_OFF:
output_low(USER_LED);
break;
case CL_I2C_START:
i2c_start();
break;
case CL_I2C_STOP:
i2c_stop();
break;
case CL_I2C_WRITE:
i2c_write(stkPop());
break;
case CL_I2C_READ:
stkPush(i2c_read(stkPop()));
break;
default:
start_stop_logo_machine = 1;
break;
};
}