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Merge branch 'develop' into feature/emplace

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This commit is contained in:
Niels Lohmann
2016-12-01 21:17:40 +01:00
parent 7b6bd585c1 e717492019
commit 5c811b91f1
3 changed files with 83 additions and 51 deletions
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66
src/json.hpp
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@ -8821,8 +8821,22 @@ basic_json_parser_66:
*/
void fill_line_buffer(size_t n = 0)
{
// if line buffer is used, m_content points to its data
assert(m_line_buffer.empty()
or m_content == reinterpret_cast<const lexer_char_t*>(m_line_buffer.data()));
// if line buffer is used, m_limit is set past the end of its data
assert(m_line_buffer.empty()
or m_limit == m_content + m_line_buffer.size());
// pointer relationships
assert(m_content <= m_start);
assert(m_start <= m_cursor);
assert(m_cursor <= m_limit);
assert(m_marker == nullptr or m_marker <= m_limit);
// number of processed characters (p)
const auto offset_start = m_start - m_content;
const size_t num_processed_chars = static_cast<size_t>(m_start - m_content);
// offset for m_marker wrt. to m_start
const auto offset_marker = (m_marker == nullptr) ? 0 : m_marker - m_start;
// number of unprocessed characters (u)
@ -8831,17 +8845,10 @@ basic_json_parser_66:
// no stream is used or end of file is reached
if (m_stream == nullptr or m_stream->eof())
{
// skip this part if we are already using the line buffer
if (m_start != reinterpret_cast<const lexer_char_t*>(m_line_buffer.data()))
{
// copy unprocessed characters to line buffer
m_line_buffer.clear();
for (m_cursor = m_start; m_cursor != m_limit; ++m_cursor)
{
assert(m_cursor != nullptr);
m_line_buffer.append(1, static_cast<const char>(*m_cursor));
}
}
// m_start may or may not be pointing into m_line_buffer at
// this point. We trust the standand library to do the right
// thing. See http://stackoverflow.com/q/28142011/266378
m_line_buffer.assign(m_start, m_limit);
// append n characters to make sure that there is sufficient
// space between m_cursor and m_limit
@ -8854,16 +8861,18 @@ basic_json_parser_66:
else
{
// delete processed characters from line buffer
m_line_buffer.erase(0, static_cast<size_t>(offset_start));
m_line_buffer.erase(0, num_processed_chars);
// read next line from input stream
std::string line;
std::getline(*m_stream, line, '\n');
m_line_buffer_tmp.clear();
std::getline(*m_stream, m_line_buffer_tmp, '\n');
// add line with newline symbol to the line buffer
m_line_buffer += line + "\n";
m_line_buffer += m_line_buffer_tmp;
m_line_buffer.push_back('\n');
}
// set pointers
m_content = reinterpret_cast<const lexer_char_t*>(m_line_buffer.c_str());
m_content = reinterpret_cast<const lexer_char_t*>(m_line_buffer.data());
assert(m_content != nullptr);
m_start = m_content;
m_marker = m_start + offset_marker;
@ -8946,9 +8955,20 @@ basic_json_parser_66:
// iterate the result between the quotes
for (const lexer_char_t* i = m_start + 1; i < m_cursor - 1; ++i)
{
// process escaped characters
if (*i == '\\')
// find next escape character
auto e = std::find(i, m_cursor - 1, '\\');
if (e != i)
{
// see https://github.com/nlohmann/json/issues/365#issuecomment-262874705
for (auto k = i; k < e; k++)
{
result.push_back(static_cast<typename string_t::value_type>(*k));
}
i = e - 1; // -1 because of ++i
}
else
{
// processing escaped character
// read next character
++i;
@ -9035,12 +9055,6 @@ basic_json_parser_66:
}
}
}
else
{
// all other characters are just copied to the end of the
// string
result.append(1, static_cast<typename string_t::value_type>(*i));
}
}
return result;
@ -9224,6 +9238,8 @@ basic_json_parser_66:
std::istream* m_stream = nullptr;
/// line buffer buffer for m_stream
string_t m_line_buffer {};
/// used for filling m_line_buffer
string_t m_line_buffer_tmp {};
/// the buffer pointer
const lexer_char_t* m_content = nullptr;
/// pointer to the beginning of the current symbol