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Get rid of "blanks wrapper" for parameter entities

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Now that replacement of parameter entities goes exclusively through
xmlSkipBlankChars, we can account for the surrounding space characters
there and remove the "blanks wrapper" hack.
This commit is contained in:
Nick Wellnhofer
2017-06-19 00:24:12 +02:00
parent d9e43c7db5
commit 872fea9485
11 changed files with 84 additions and 131 deletions
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65
parser.c
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@@ -2169,7 +2169,6 @@ xmlSkipBlankChars(xmlParserCtxtPtr ctxt) {
while (1) {
if (IS_BLANK_CH(CUR)) { /* CHECKED tstblanks.xml */
NEXT;
res++;
} else if (CUR == '%') {
/*
* Need to handle support of entities branching here
@@ -2184,6 +2183,15 @@ xmlSkipBlankChars(xmlParserCtxtPtr ctxt) {
} else {
break;
}
/*
* Also increase the counter when entering or exiting a PERef.
* The spec says: "When a parameter-entity reference is recognized
* in the DTD and included, its replacement text MUST be enlarged
* by the attachment of one leading and one following space (#x20)
* character."
*/
res++;
}
}
return(res);
@@ -2446,57 +2454,6 @@ xmlParseStringCharRef(xmlParserCtxtPtr ctxt, const xmlChar **str) {
return(0);
}
/**
* xmlNewBlanksWrapperInputStream:
* @ctxt: an XML parser context
* @entity: an Entity pointer
*
* Create a new input stream for wrapping
* blanks around a PEReference
*
* Returns the new input stream or NULL
*/
static void deallocblankswrapper (xmlChar *str) {xmlFree(str);}
static xmlParserInputPtr
xmlNewBlanksWrapperInputStream(xmlParserCtxtPtr ctxt, xmlEntityPtr entity) {
xmlParserInputPtr input;
xmlChar *buffer;
size_t length;
if (entity == NULL) {
xmlFatalErr(ctxt, XML_ERR_INTERNAL_ERROR,
"xmlNewBlanksWrapperInputStream entity\n");
return(NULL);
}
if (xmlParserDebugEntities)
xmlGenericError(xmlGenericErrorContext,
"new blanks wrapper for entity: %s\n", entity->name);
input = xmlNewInputStream(ctxt);
if (input == NULL) {
return(NULL);
}
length = xmlStrlen(entity->name) + 5;
buffer = xmlMallocAtomic(length);
if (buffer == NULL) {
xmlErrMemory(ctxt, NULL);
xmlFree(input);
return(NULL);
}
buffer [0] = ' ';
buffer [1] = '%';
buffer [length-3] = ';';
buffer [length-2] = ' ';
buffer [length-1] = 0;
memcpy(buffer + 2, entity->name, length - 5);
input->free = deallocblankswrapper;
input->base = buffer;
input->cur = buffer;
input->length = length;
input->end = &buffer[length];
return(input);
}
/**
* xmlParserHandlePEReference:
* @ctxt: the parser context
@@ -7945,10 +7902,6 @@ xmlParsePEReference(xmlParserCtxtPtr ctxt)
xmlWarningMsg(ctxt, XML_WAR_UNDECLARED_ENTITY,
"Internal: %%%s; is not a parameter entity\n",
name, NULL);
} else if (ctxt->input->free != deallocblankswrapper) {
input = xmlNewBlanksWrapperInputStream(ctxt, entity);
if (xmlPushInput(ctxt, input) < 0)
return;
} else {
xmlChar start[4];
xmlCharEncoding enc;