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parser: Remove first line handling in xmlParseChunk

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After reworking EBCDIC detection, this isn't necessary.
This commit is contained in:
Nick Wellnhofer 2023-04-12 15:10:01 +02:00
parent 921796b06b
commit b4d46cee80
1 changed files with 1 additions and 49 deletions
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50
parser.c
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@ -11997,7 +11997,6 @@ int
xmlParseChunk(xmlParserCtxtPtr ctxt, const char *chunk, int size,
int terminate) {
int end_in_lf = 0;
int remain = 0;
if (ctxt == NULL)
return(XML_ERR_INTERNAL_ERROR);
@ -12017,49 +12016,12 @@ xmlParseChunk(xmlParserCtxtPtr ctxt, const char *chunk, int size,
size--;
}
xmldecl_done:
if ((size > 0) && (chunk != NULL) && (ctxt->input != NULL) &&
(ctxt->input->buf != NULL) && (ctxt->instate != XML_PARSER_EOF)) {
size_t base = xmlBufGetInputBase(ctxt->input->buf->buffer, ctxt->input);
size_t cur = ctxt->input->cur - ctxt->input->base;
int res;
/*
* Specific handling if we autodetected an encoding, we should not
* push more than the first line ... which depend on the encoding
* And only push the rest once the final encoding was detected
*/
if ((ctxt->instate == XML_PARSER_START) && (ctxt->input != NULL) &&
(ctxt->input->buf != NULL) && (ctxt->input->buf->encoder != NULL)) {
unsigned int len = 45;
if ((xmlStrcasestr(BAD_CAST ctxt->input->buf->encoder->name,
BAD_CAST "UTF-16")) ||
(xmlStrcasestr(BAD_CAST ctxt->input->buf->encoder->name,
BAD_CAST "UTF16")))
len = 90;
else if ((xmlStrcasestr(BAD_CAST ctxt->input->buf->encoder->name,
BAD_CAST "UCS-4")) ||
(xmlStrcasestr(BAD_CAST ctxt->input->buf->encoder->name,
BAD_CAST "UCS4")))
len = 180;
if (ctxt->input->buf->rawconsumed < len)
len -= ctxt->input->buf->rawconsumed;
/*
* Change size for reading the initial declaration only
* if size is greater than len. Otherwise, memmove in xmlBufferAdd
* will blindly copy extra bytes from memory.
*/
if ((unsigned int) size > len) {
remain = size - len;
size = len;
} else {
remain = 0;
}
}
res = xmlParserInputBufferPush(ctxt->input->buf, size, chunk);
xmlBufSetInputBaseCur(ctxt->input->buf->buffer, ctxt->input, base, cur);
if (res < 0) {
@ -12093,11 +12055,7 @@ xmldecl_done:
}
}
if (remain != 0) {
xmlParseTryOrFinish(ctxt, 0);
} else {
xmlParseTryOrFinish(ctxt, terminate);
}
xmlParseTryOrFinish(ctxt, terminate);
if (ctxt->instate == XML_PARSER_EOF)
return(ctxt->errNo);
@ -12111,12 +12069,6 @@ xmldecl_done:
if ((ctxt->errNo != XML_ERR_OK) && (ctxt->disableSAX == 1))
return(ctxt->errNo);
if (remain != 0) {
chunk += size;
size = remain;
remain = 0;
goto xmldecl_done;
}
if ((end_in_lf == 1) && (ctxt->input != NULL) &&
(ctxt->input->buf != NULL)) {
size_t base = xmlBufGetInputBase(ctxt->input->buf->buffer,