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#include "Piraha.hpp"
using namespace piraha;
Lookup::Lookup(std::string name_,smart_ptr<Grammar> g) : gram(g), name(name_), capture(true) {
if(name[0] == '-') {
capture = false;
name = name.substr(1);
}
}
bool Lookup::match(Matcher *m) {
smart_ptr<Pattern> p = gram->patterns.get(name);
if(!p.valid()) std::cout << "Lookup of pattern [" << name << "] failed. Jmap = " << gram->patterns << std::endl;
assert(p.valid());
vector<smart_ptr<Group> > chSave = m->children;
m->children.clear();
int s = m->pos;
std::string save_name = m->inrule;
m->inrule += "::";
m->inrule += name;
bool b = p->match(m);
m->inrule = save_name;
int e = m->pos;
if(b) {
/*
if(capture) {
std::cout << "Matched: {" << name << "}={";
for(int i=s;i<e;i++)
insertc(std::cout,m->input[i]);
std::cout << "}" << std::endl;
}
*/
smart_ptr<Group> g = new Group(name,m->input,s,e,m->children);
if(capture)
chSave.push_back(g);
}
m->children = chSave;
return b;
}
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