// ============================================================================
// Name: Bracket-matching example of stack usage                File: token.cpp
// Author:  Michael and Alice Fischer                   Copyright: January 2009
// Modified February 2016
// ============================================================================
#include "token.hpp"
//-----------------------------------------------------------------------------
	int Token::nextID = 0;
//-----------------------------------------------------------------------------
Token::
Token(char ch) {
	this->ch = ch;
	classify(ch);
	dynarray = new int[10];
	cerr << "Char constructor for token " << id << " called\n";
}

//-----------------------------------------------------------------------------
void Token::
classify(char ch) {
	static const char* brackets = "[](){}<>";
	const char* p = strchr(brackets, ch);
	if (p == nullptr) {
		type = BKT_NONE;
		sense = SENSE_LEFT;              // arbitrary value
	} else {
		int pos = p - brackets;          // pointer difference gives subscript.
		sense = (pos % 2 == 0) ? SENSE_LEFT : SENSE_RIGHT;
		type = (BracketType) (pos / 2);  // integer arithmetic, with truncation.
	}
}