/**********************************************************************
*
* set_pos
*
* Sets nullable, firstpos and lastpos in whole tree.
*/
static bool set_pos(void)
{
REG1 int i;
REG2 node_t* tnode = rbuf.tree;
for (i = 0; i <= rbuf.root; i++, tnode++) {
nullable(tnode);
if ((tnode->firstpos = calloc(rbuf.setsize, 1)) == NULL)
return FALSE;
firstpos(i, tnode);
if ((tnode->lastpos = calloc(rbuf.setsize, 1)) == NULL)
return FALSE;
lastpos(i, tnode);
}
return TRUE;
}
/*!
* \brief output method
*/
std::ostream & InputError::output(std::ostream & os) const {
os << filename;
if (line > 0) {
os << ":" << line;
}
os << ": error";
if (!token.empty())
switch (type) {
case exception::InputError::SYNTAX_ERROR:
os << " near '" << token << "'";
break;
case exception::InputError::SEMANTIC_ERROR:
os << ": '" << token << "'";
break;
default: /* do nothing */
;
}
os << ": " << message;
ifstream ifs(filename.c_str());
if (ifs.good()) {
string line_, arrows;
for (int i = 0; i < line; ++i) {
getline(ifs, line_);
}
size_t firstpos(line_.find(token));
for (unsigned int i = 0; i < firstpos; ++i) {
arrows += " ";
}
for (unsigned int i = 0; i < token.size(); ++i) {
arrows += "^";
}
os << endl << endl << line_ << endl << arrows << endl << endl;
}
ifs.close();
return os;
}