+
+ // FIXME
+ private static HashSet<GSS.Phase.Node> touched = new HashSet<GSS.Phase.Node>();
+ public static <Tok> void complain(GSS.Phase<Tok>.Node n, HashMap<String,HashSet<String>> errors, boolean force) {
+ if (touched.contains(n)) return;
+ touched.add(n);
+ for(Position p : n.state) {
+ if (((p.isFirst() || p.isLast()) && !force)/* || p.owner().name==null*/) {
+ for(Node n2 : n.parents())
+ complain(n2, errors, force | p.isFirst());
+ } else {
+ String seqname = p.owner()/*.name*/+"";
+ HashSet<String> hs = errors.get(seqname);
+ if (hs==null) errors.put(seqname, hs = new HashSet<String>());
+ hs.add(p.element()+"");
+ }
+ }
+ }
+
+ public static String el(Object e) {
+ String s = e.toString();
+ if (s.length()==0 || s.charAt(0)!='\"' || s.charAt(s.length()-1)!='\"') return /*ANSI.yellow(s)*/s;
+ s = s.substring(1);
+ s = s.substring(0, s.length()-1);
+ StringBuffer ret = new StringBuffer();
+ for(int i=0; i<s.length(); i++) {
+ if (s.charAt(i)=='\\' && i<s.length()-1) ret.append(s.charAt(++i));
+ else ret.append(s);
+ }
+ return /*ANSI.purple(ret.toString())*/ret.toString();
+ }
+ public static String error(String message, Object token, Iterable<Node> nodes) {
+ String lookAhead = token==null ? "<EOF>" : token.toString();
+ StringBuffer ret = new StringBuffer();
+ ret.append("\n ");
+ ret.append(message);
+ /*
+ HashMap<String,HashSet<String>> errors = new HashMap<String,HashSet<String>>();
+ for(Node n : nodes) {
+ //System.out.println(n.state);
+ complain(n, errors, false);
+ }
+ for(String s : errors.keySet()) {
+ ret.append(" while parsing " + ANSI.yellow(s));
+ HashSet<String> hs = errors.get(s);
+ if (hs.size()==1) ret.append(" expected " + ANSI.yellow(el(hs.iterator().next())) + "\n");
+ else {
+ ret.append(" expected ");
+ boolean first = true;
+ for(String s2 : hs) {
+ if (!first) ret.append(" or ");
+ first = false;
+ ret.append(ANSI.yellow(el(s2)));
+ }
+ ret.append("\n");
+ }
+ }
+ */
+ return ret.toString();
+ }
+