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-rw-r--r--src/pugixml.cpp112
1 files changed, 77 insertions, 35 deletions
diff --git a/src/pugixml.cpp b/src/pugixml.cpp
index 7d53832..16190c6 100644
--- a/src/pugixml.cpp
+++ b/src/pugixml.cpp
@@ -559,7 +559,9 @@ PUGI__NS_BEGIN
char_t* allocate_string(size_t length)
{
- PUGI__STATIC_ASSERT(xml_memory_page_size <= (1 << 16));
+ static const size_t max_encoded_offset = (1 << 16) * sizeof(void*);
+
+ PUGI__STATIC_ASSERT(xml_memory_page_size <= max_encoded_offset);
// allocate memory for string and header block
size_t size = sizeof(xml_memory_string_header) + length * sizeof(char_t);
@@ -575,12 +577,14 @@ PUGI__NS_BEGIN
// setup header
ptrdiff_t page_offset = reinterpret_cast<char*>(header) - reinterpret_cast<char*>(page) - sizeof(xml_memory_page);
- assert(page_offset >= 0 && page_offset < (1 << 16));
- header->page_offset = static_cast<uint16_t>(page_offset);
+ assert(page_offset % sizeof(void*) == 0);
+ assert(page_offset >= 0 && static_cast<size_t>(page_offset) < max_encoded_offset);
+ header->page_offset = static_cast<uint16_t>(static_cast<size_t>(page_offset) / sizeof(void*));
// full_size == 0 for large strings that occupy the whole page
- assert(full_size < (1 << 16) || (page->busy_size == full_size && page_offset == 0));
- header->full_size = static_cast<uint16_t>(full_size < (1 << 16) ? full_size : 0);
+ assert(full_size % sizeof(void*) == 0);
+ assert(full_size < max_encoded_offset || (page->busy_size == full_size && page_offset == 0));
+ header->full_size = static_cast<uint16_t>(full_size < max_encoded_offset ? full_size / sizeof(void*) : 0);
// round-trip through void* to avoid 'cast increases required alignment of target type' warning
// header is guaranteed a pointer-sized alignment, which should be enough for char_t
@@ -597,11 +601,11 @@ PUGI__NS_BEGIN
assert(header);
// deallocate
- size_t page_offset = sizeof(xml_memory_page) + header->page_offset;
+ size_t page_offset = sizeof(xml_memory_page) + header->page_offset * sizeof(void*);
xml_memory_page* page = reinterpret_cast<xml_memory_page*>(static_cast<void*>(reinterpret_cast<char*>(header) - page_offset));
// if full_size == 0 then this string occupies the whole page
- size_t full_size = header->full_size == 0 ? page->busy_size : header->full_size;
+ size_t full_size = header->full_size == 0 ? page->busy_size : header->full_size * sizeof(void*);
deallocate_memory(header, full_size, page);
}
@@ -2894,23 +2898,28 @@ PUGI__NS_BEGIN
char_t* parse_doctype_ignore(char_t* s)
{
+ size_t depth = 0;
+
assert(s[0] == '<' && s[1] == '!' && s[2] == '[');
- s++;
+ s += 3;
while (*s)
{
if (s[0] == '<' && s[1] == '!' && s[2] == '[')
{
// nested ignore section
- s = parse_doctype_ignore(s);
- if (!s) return s;
+ s += 3;
+ depth++;
}
else if (s[0] == ']' && s[1] == ']' && s[2] == '>')
{
// ignore section end
s += 3;
- return s;
+ if (depth == 0)
+ return s;
+
+ depth--;
}
else s++;
}
@@ -2918,10 +2927,12 @@ PUGI__NS_BEGIN
PUGI__THROW_ERROR(status_bad_doctype, s);
}
- char_t* parse_doctype_group(char_t* s, char_t endch, bool toplevel)
+ char_t* parse_doctype_group(char_t* s, char_t endch)
{
+ size_t depth = 0;
+
assert((s[0] == '<' || s[0] == 0) && s[1] == '!');
- s++;
+ s += 2;
while (*s)
{
@@ -2936,12 +2947,8 @@ PUGI__NS_BEGIN
else
{
// some control group
- s = parse_doctype_group(s, endch, false);
- if (!s) return s;
-
- // skip >
- assert(*s == '>');
- s++;
+ s += 2;
+ depth++;
}
}
else if (s[0] == '<' || s[0] == '"' || s[0] == '\'')
@@ -2952,12 +2959,16 @@ PUGI__NS_BEGIN
}
else if (*s == '>')
{
- return s;
+ if (depth == 0)
+ return s;
+
+ depth--;
+ s++;
}
else s++;
}
- if (!toplevel || endch != '>') PUGI__THROW_ERROR(status_bad_doctype, s);
+ if (depth != 0 || endch != '>') PUGI__THROW_ERROR(status_bad_doctype, s);
return s;
}
@@ -3049,7 +3060,7 @@ PUGI__NS_BEGIN
char_t* mark = s + 9;
- s = parse_doctype_group(s, endch, true);
+ s = parse_doctype_group(s, endch);
if (!s) return s;
assert((*s == 0 && endch == '>') || *s == '>');
@@ -3989,6 +4000,27 @@ PUGI__NS_BEGIN
writer.write('-', '-', '>');
}
+ PUGI__FN void node_output_pi_value(xml_buffered_writer& writer, const char_t* s)
+ {
+ while (*s)
+ {
+ const char_t* prev = s;
+
+ // look for ?> sequence - we can't output it since ?> terminates PI
+ while (*s && !(s[0] == '?' && s[1] == '>')) ++s;
+
+ writer.write_buffer(prev, static_cast<size_t>(s - prev));
+
+ if (*s)
+ {
+ assert(s[0] == '?' && s[1] == '>');
+
+ writer.write('?', ' ', '>');
+ s += 2;
+ }
+ }
+ }
+
PUGI__FN void node_output_attributes(xml_buffered_writer& writer, xml_node_struct* node, unsigned int flags)
{
const char_t* default_name = PUGIXML_TEXT(":anonymous");
@@ -4102,7 +4134,7 @@ PUGI__NS_BEGIN
if (static_cast<xml_node_pi_struct*>(node)->pi_value)
{
writer.write(' ');
- writer.write_string(static_cast<xml_node_pi_struct*>(node)->pi_value);
+ node_output_pi_value(writer, static_cast<xml_node_pi_struct*>(node)->pi_value);
}
writer.write('?', '>');
@@ -4863,7 +4895,7 @@ PUGI__NS_BEGIN
PUGI__FN xml_parse_result load_buffer_impl(xml_document_struct* doc, xml_node_struct* root, void* contents, size_t size, unsigned int options, xml_encoding encoding, bool is_mutable, bool own, char_t** out_buffer)
{
// check input buffer
- assert(contents || size == 0);
+ if (!contents && size) return make_parse_result(status_io_error);
// get actual encoding
xml_encoding buffer_encoding = impl::get_buffer_encoding(encoding, contents, size);
@@ -8066,7 +8098,7 @@ PUGI__NS_BEGIN
return node.attribute() ? namespace_uri(node.attribute(), node.parent()) : namespace_uri(node.node());
}
- PUGI__FN void normalize_space(char_t* buffer)
+ PUGI__FN char_t* normalize_space(char_t* buffer)
{
char_t* write = buffer;
@@ -8090,9 +8122,11 @@ PUGI__NS_BEGIN
// zero-terminate
*write = 0;
+
+ return write;
}
- PUGI__FN void translate(char_t* buffer, const char_t* from, const char_t* to, size_t to_length)
+ PUGI__FN char_t* translate(char_t* buffer, const char_t* from, const char_t* to, size_t to_length)
{
char_t* write = buffer;
@@ -8110,6 +8144,8 @@ PUGI__NS_BEGIN
// zero-terminate
*write = 0;
+
+ return write;
}
PUGI__FN unsigned char* translate_table_generate(xpath_allocator* alloc, const char_t* from, const char_t* to)
@@ -8146,7 +8182,7 @@ PUGI__NS_BEGIN
return static_cast<unsigned char*>(result);
}
- PUGI__FN void translate_table(char_t* buffer, const unsigned char* table)
+ PUGI__FN char_t* translate_table(char_t* buffer, const unsigned char* table)
{
char_t* write = buffer;
@@ -8172,6 +8208,8 @@ PUGI__NS_BEGIN
// zero-terminate
*write = 0;
+
+ return write;
}
inline bool is_xpath_attribute(const char_t* name)
@@ -10278,18 +10316,20 @@ PUGI__NS_BEGIN
{
xpath_string s = string_value(c.n, stack.result);
- normalize_space(s.data(stack.result));
+ char_t* begin = s.data(stack.result);
+ char_t* end = normalize_space(begin);
- return s;
+ return xpath_string::from_heap_preallocated(begin, end);
}
case ast_func_normalize_space_1:
{
xpath_string s = _left->eval_string(c, stack);
- normalize_space(s.data(stack.result));
+ char_t* begin = s.data(stack.result);
+ char_t* end = normalize_space(begin);
- return s;
+ return xpath_string::from_heap_preallocated(begin, end);
}
case ast_func_translate:
@@ -10302,18 +10342,20 @@ PUGI__NS_BEGIN
xpath_string from = _right->eval_string(c, swapped_stack);
xpath_string to = _right->_next->eval_string(c, swapped_stack);
- translate(s.data(stack.result), from.c_str(), to.c_str(), to.length());
+ char_t* begin = s.data(stack.result);
+ char_t* end = translate(begin, from.c_str(), to.c_str(), to.length());
- return s;
+ return xpath_string::from_heap_preallocated(begin, end);
}
case ast_opt_translate_table:
{
xpath_string s = _left->eval_string(c, stack);
- translate_table(s.data(stack.result), _data.table);
+ char_t* begin = s.data(stack.result);
+ char_t* end = translate_table(begin, _data.table);
- return s;
+ return xpath_string::from_heap_preallocated(begin, end);
}
case ast_variable:
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 05:39:36 +0000