lib/json
1
0
Fork 0
mirror of https://github.com/nlohmann/json.git synced 2025-07-13 20:21:48 +03:00
Code Activity

adding support for escaped reference tokens

Browse Source
This commit is contained in:
Niels
2016-04-13 17:41:19 +02:00
parent 726051e9b7
commit 2cb925c186
3 changed files with 150 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
src/json.hpp.re2c
View File

@ -8140,18 +8140,18 @@ class basic_json
/// return referenced value
reference get(reference j)
{
reference result = j;
pointer result = &j;
for (const auto& reference_token : reference_tokens)
{
switch (result.m_type)
switch (result->m_type)
{
case value_t::object:
result = result[reference_token];
result = &result->at(reference_token);
continue;
case value_t::array:
result = result[std::stoi(reference_token)];
result = &result->at(static_cast<size_t>(std::stoi(reference_token)));
continue;
default:
@ -8159,13 +8159,52 @@ class basic_json
}
}
return result;
return *result;
}
const_reference get(const_reference j) const
{
const_pointer result = &j;
for (const auto& reference_token : reference_tokens)
{
switch (result->m_type)
{
case value_t::object:
result = &result->at(reference_token);
continue;
case value_t::array:
result = &result->at(static_cast<size_t>(std::stoi(reference_token)));
continue;
default:
throw std::domain_error("unresolved reference token '" + reference_token + "'");
}
}
return *result;
}
private:
/// the reference tokens
std::vector<std::string> reference_tokens {};
/// replace all occurrences of a substring by another string
void replace_substring(std::string& s,
const std::string& f,
const std::string& t)
{
assert(not f.empty());
for (
size_t pos = s.find(f); // find first occurrence of f
pos != std::string::npos; // make sure f was found
s.replace(pos, f.size(), t), // replace with t
pos = s.find(f, pos + t.size()) // find next occurrence of f
);
}
/// split the string input to reference tokens
void split(std::string reference_string)
{
@ -8194,6 +8233,14 @@ class basic_json
{
reference_tokens.push_back("");
}
for (auto& reference_token : reference_tokens)
{
// first transform any occurrence of the sequence '~1' to '/'
replace_substring(reference_token, "~1", "/");
// then transform any occurrence of the sequence '~0' to '~'
replace_substring(reference_token, "~0", "~");
}
}
};
};