void statement_impl::bind(values & values)
{
std::size_t cnt = 0;
try
{
for (std::vector<details::standard_use_type*>::iterator it =
values.uses_.begin(); it != values.uses_.end(); ++it)
{
// only bind those variables which are:
// - either named and actually referenced in the statement,
// - or positional
std::string const& useName = (*it)->get_name();
if (useName.empty())
{
// positional use element
int position = static_cast<int>(uses_.size());
(*it)->bind(*this, position);
uses_.push_back(*it);
indicators_.push_back(values.indicators_[cnt]);
}
else
{
// named use element - check if it is used
std::string const placeholder = ":" + useName;
std::size_t pos = query_.find(placeholder);
while (pos != std::string::npos)
{
// Retrieve next char after placeholder
// make sure we do not go out of range on the string
const char nextChar = (pos + placeholder.size()) < query_.size() ?
query_[pos + placeholder.size()] : '\0';
if (std::isalnum(nextChar))
{
// We got a partial match only,
// keep looking for the placeholder
pos = query_.find(placeholder, pos + placeholder.size());
}
else
{
int position = static_cast<int>(uses_.size());
(*it)->bind(*this, position);
uses_.push_back(*it);
indicators_.push_back(values.indicators_[cnt]);
// Ok we found it, done
break;
}
}
// In case we couldn't find the placeholder
if (pos == std::string::npos)
{
values.add_unused(*it, values.indicators_[cnt]);
}
}
cnt++;
}
}
catch (...)
{
for (std::size_t i = ++cnt; i != values.uses_.size(); ++i)
{
values.add_unused(values.uses_[i], values.indicators_[i]);
}
throw;
}
}
void statement_impl::bind(values & values)
{
std::size_t cnt = 0;
try
{
for (std::vector<details::standard_use_type *>::iterator it =
values.uses_.begin(); it != values.uses_.end(); ++it)
{
// only bind those variables which are:
// - either named and actually referenced in the statement,
// - or positional
std::string const & useName = (*it)->get_name();
if (useName.empty())
{
// positional use element
int position = static_cast<int>(uses_.size());
(*it)->bind(*this, position);
uses_.push_back(*it);
indicators_.push_back(values.indicators_[cnt]);
}
else
{
// named use element - check if it is used
const std::string placeholder = ":" + useName;
std::size_t pos = query_.find(placeholder);
if (pos != std::string::npos)
{
const char nextChar = query_[pos + placeholder.size()];
if (nextChar == ' ' || nextChar == ',' ||
nextChar == '\0' || nextChar == ')')
{
int position = static_cast<int>(uses_.size());
(*it)->bind(*this, position);
uses_.push_back(*it);
indicators_.push_back(values.indicators_[cnt]);
}
else
{
values.add_unused(*it, values.indicators_[cnt]);
}
}
else
{
values.add_unused(*it, values.indicators_[cnt]);
}
}
cnt++;
}
}
catch (...)
{
for (std::size_t i = ++cnt; i != values.uses_.size(); ++i)
{
values.add_unused(values.uses_[i], values.indicators_[i]);
}
throw;
}
}
