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Fixed some bugs in Parser::firstSet and added a bit of caching. It still doesn't work quite right, though, there's some problem with nullable left recursion. However, it's better than it was, and I need to go to bed. More work later.

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Nathan Braswell
2014-06-30 01:57:50 -07:00
parent 12f57f8ce8
commit 03770028ad
19 changed files with 273 additions and 78 deletions
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12
include/ParseAction.h
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@@ -11,6 +11,7 @@
#include <vector>
#include <string>
class ParseAction {
public:
enum ActionType { INVALID, REDUCE, SHIFT, ACCEPT, REJECT };
@@ -18,10 +19,11 @@ class ParseAction {
ParseAction(ActionType action, ParseRule* reduceRule);
ParseAction(ActionType action, int shiftState);
~ParseAction();
bool const equalsExceptLookahead(const ParseAction &other);
bool const operator==(const ParseAction &other);
bool const operator!=(const ParseAction &other);
std::string toString();
bool const equalsExceptLookahead(const ParseAction &other) const;
bool const operator==(const ParseAction &other) const;
bool const operator!=(const ParseAction &other) const;
bool const operator<(const ParseAction &other) const;
std::string toString(bool printRuleLookahead = true);
static std::string actionToString(ActionType action);
ActionType action;
@@ -31,4 +33,4 @@ class ParseAction {
};
#endif
#endif