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Derive NodeMetaRef from MetaDataRef

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This commit is contained in:
rubenwardy 2017-01-31 16:43:45 +00:00
parent 13f94ecad5
commit c2e7b1f579
9 changed files with 407 additions and 232 deletions
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48
src/metadata.cpp
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@ -37,12 +37,39 @@ bool Metadata::empty() const
return m_stringvars.size() == 0;
}
std::string Metadata::getString(const std::string &name,
u16 recursion) const
size_t Metadata::size() const
{
return m_stringvars.size();
}
bool Metadata::contains(const std::string &name) const
{
return m_stringvars.find(name) != m_stringvars.end();
}
bool Metadata::operator==(const Metadata &other) const
{
if (size() != other.size())
return false;
for (StringMap::const_iterator it = m_stringvars.begin();
it != m_stringvars.end(); ++it) {
if (!other.contains(it->first) ||
other.getString(it->first) != it->second)
return false;
}
return true;
}
const std::string &Metadata::getString(const std::string &name,
u16 recursion) const
{
StringMap::const_iterator it = m_stringvars.find(name);
if (it == m_stringvars.end())
return "";
if (it == m_stringvars.end()) {
static const std::string empty_string = std::string("");
return empty_string;
}
return resolveString(it->second, recursion);
}
@ -56,14 +83,13 @@ void Metadata::setString(const std::string &name, const std::string &var)
}
}
std::string Metadata::resolveString(const std::string &str,
u16 recursion) const
const std::string &Metadata::resolveString(const std::string &str,
u16 recursion) const
{
if (recursion > 1) {
if (recursion <= 1 &&
str.substr(0, 2) == "${" && str[str.length() - 1] == '}') {
return getString(str.substr(2, str.length() - 3), recursion + 1);
} else {
return str;
}
if (str.substr(0, 2) == "${" && str[str.length() - 1] == '}') {
return getString(str.substr(2, str.length() - 3), recursion + 1);
}
return str;
}