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LR0: Implemented Item::dump

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This commit is contained in:
Paul Beckingham 2015-12-27 12:18:02 -05:00
parent 66504d5dfc
commit ef087a7b35
2 changed files with 23 additions and 0 deletions
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22
src/LR0.cpp
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@ -175,3 +175,25 @@ bool LR0::Item::advance ()
}
////////////////////////////////////////////////////////////////////////////////
std::string LR0::Item::dump () const
{
std::stringstream out;
for (unsigned int i = 0; i < _rule.size (); ++i)
{
if (i)
out << " ";
if (i == _cursor)
out << "● ";
out << _rule[i];
}
if (_cursor >= _rule.size ())
out << " ●";
return out.str ();
}
////////////////////////////////////////////////////////////////////////////////

1
src/LR0.h
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@ -45,6 +45,7 @@ public:
public:
Item (const std::vector <std::string>&);
bool advance ();
std::string dump () const;
private:
std::vector <std::string> _rule;