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-rw-r--r--src/pugixml.cpp33
1 files changed, 28 insertions, 5 deletions
diff --git a/src/pugixml.cpp b/src/pugixml.cpp
index 18c89e2..b9eab78 100644
--- a/src/pugixml.cpp
+++ b/src/pugixml.cpp
@@ -2888,7 +2888,7 @@ PUGI__NS_BEGIN
#ifdef PUGIXML_WCHAR_MODE
PUGI__FN size_t get_valid_length(const char_t* data, size_t length)
{
- assert(length > 0);
+ if (length < 1) return 0;
// discard last character if it's the lead of a surrogate pair
return (sizeof(wchar_t) == 2 && static_cast<unsigned int>(static_cast<uint16_t>(data[length - 1]) - 0xD800) < 0x400) ? length - 1 : length;
@@ -2960,7 +2960,7 @@ PUGI__NS_BEGIN
#else
PUGI__FN size_t get_valid_length(const char_t* data, size_t length)
{
- assert(length > 4);
+ if (length < 5) return 0;
for (size_t i = 1; i <= 4; ++i)
{
@@ -3080,6 +3080,7 @@ PUGI__NS_BEGIN
// get chunk size by selecting such number of characters that are guaranteed to fit into scratch buffer
// and form a complete codepoint sequence (i.e. discard start of last codepoint if necessary)
size_t chunk_size = get_valid_length(data, bufcapacity);
+ assert(chunk_size);
// convert chunk and write
flush(data, chunk_size);
@@ -3112,7 +3113,27 @@ PUGI__NS_BEGIN
void write(const char_t* data)
{
- write(data, strlength(data));
+ // write the part of the string that fits in the buffer
+ size_t offset = bufsize;
+
+ while (*data && offset < bufcapacity)
+ buffer[offset++] = *data++;
+
+ // write the rest
+ if (offset < bufcapacity)
+ {
+ bufsize = offset;
+ }
+ else
+ {
+ // backtrack a bit if we have split the codepoint
+ size_t length = offset - bufsize;
+ size_t extra = length - get_valid_length(data - length, length);
+
+ bufsize = offset - extra;
+
+ write_direct(data - extra, strlength(data) + extra);
+ }
}
void write(char_t d0)
@@ -8265,7 +8286,8 @@ PUGI__NS_BEGIN
switch (_test)
{
case nodetest_name:
- if (strequal(name, _data.nodetest)) ns.push_back(xpath_node(a, parent), alloc);
+ if (strequal(name, _data.nodetest))
+ ns.push_back(xpath_node(a, parent), alloc);
break;
case nodetest_type_node:
@@ -8290,7 +8312,8 @@ PUGI__NS_BEGIN
switch (_test)
{
case nodetest_name:
- if (n.type() == node_element && strequal(n.name(), _data.nodetest)) ns.push_back(n, alloc);
+ if (n.type() == node_element && strequal(n.name(), _data.nodetest))
+ ns.push_back(n, alloc);
break;
case nodetest_type_node: