xpath/regex/RegularExpression.java

509     private Op compile(Token tok, Op next, boolean reverse) {
510         Op ret;
513             ret = Op.createDot();
518             ret = Op.createChar(tok.getChar());
523             ret = Op.createAnchor(tok.getChar());
529             ret = Op.createRange(tok);
547             Op.UnionOp uni = Op.createUnion(tok.size());
572                     Op.ChildOp q = Op.createQuestion(tok.type == Token.NONGREEDYCLOSURE);
578                 Op.ChildOp op;
580                     op = Op.createNonGreedyClosure();
582                     op = Op.createClosure(this.numberOfClosures++);
600             ret = Op.createString(tok.getString());
605             ret = Op.createBackReference(tok.getReferenceNumber());
613                 next = Op.createCapture(tok.getParenNumber(), next);
615                 ret = Op.createCapture(-tok.getParenNumber(), next);
617                 next = Op.createCapture(-tok.getParenNumber(), next);
619                 ret = Op.createCapture(tok.getParenNumber(), next);
624             ret = Op.createLook(Op.LOOKAHEAD, next, compile(tok.getChild(0), null, false));
627             ret = Op.createLook(Op.NEGATIVELOOKAHEAD, next, compile(tok.getChild(0), null, false));
630             ret = Op.createLook(Op.LOOKBEHIND, next, compile(tok.getChild(0), null, true));
633             ret = Op.createLook(Op.NEGATIVELOOKBEHIND, next, compile(tok.getChild(0), null, true));
637             ret = Op.createIndependent(next, compile(tok.getChild(0), null, reverse));
641             ret = Op.createModifier(next, compile(tok.getChild(0), null, reverse),
649             Op condition = ctok.condition == null ? null : compile(ctok.condition, null, reverse);
650             Op yes = compile(ctok.yes, next, reverse);
651             Op no = ctok.no == null ? null : compile(ctok.no, next, reverse);
652             ret = Op.createCondition(next, ref, condition, yes, no);
784             && this.operations.type == Op.CLOSURE && this.operations.getChild().type == Op.DOT) {
975             && this.operations.type == Op.CLOSURE && this.operations.getChild().type == Op.DOT) {
1045     private int match(Context con, Op op, int offset, int dx, int opts) {
1047         final Stack<Op> opStack = new Stack<>();
1067                 case Op.CHAR:
1079                 case Op.DOT:
1107                 case Op.RANGE:
1108                 case Op.NRANGE:
1130                 case Op.ANCHOR:
1140                 case Op.BACKREFERENCE:
1170                 case Op.STRING:
1192                 case Op.CLOSURE:
1205                 case Op.QUESTION:
1213                 case Op.NONGREEDYCLOSURE:
1214                 case Op.NONGREEDYQUESTION:
1222                 case Op.UNION:
1234                 case Op.CAPTURE:
1254                 case Op.LOOKAHEAD:
1255                 case Op.NEGATIVELOOKAHEAD:
1256                 case Op.LOOKBEHIND:
1257                 case Op.NEGATIVELOOKBEHIND:
1262                         dx = (op.type == Op.LOOKAHEAD || op.type == Op.NEGATIVELOOKAHEAD) ? 1 : -1;
1267                 case Op.INDEPENDENT:
1275                 case Op.MODIFIER:
1288                 case Op.CONDITION:
1290                         Op.ConditionOp cop = (Op.ConditionOp)op;
1330                 case Op.CLOSURE:
1331                 case Op.QUESTION:
1338                 case Op.NONGREEDYCLOSURE:
1339                 case Op.NONGREEDYQUESTION:
1346                 case Op.UNION:
1368                 case Op.CAPTURE:
1381                 case Op.LOOKAHEAD:
1382                 case Op.LOOKBEHIND:
1393                 case Op.NEGATIVELOOKAHEAD:
1394                 case Op.NEGATIVELOOKBEHIND:
1405                 case Op.MODIFIER:
1409                 case Op.INDEPENDENT:
1417                 case Op.CONDITION:
1419                         final Op.ConditionOp cop = (Op.ConditionOp)op;
1444     boolean matchAnchor(ExpressionTarget target, Op op, Context con, int offset, int opts) {
1649             && this.operations.type == Op.CLOSURE && this.operations.getChild().type == Op.DOT) {
1741     transient Op operations = null;
2094         if (Op.COUNT)  Op.nofinstances = 0;
2097         if  (this.operations.type == Op.CLOSURE && this.operations.getChild().type == Op.DOT) { // .*
2098             Op anchor = Op.createAnchor(isSet(this.options, SINGLE_LINE) ? 'A' : '@');
2103         if (Op.COUNT)  System.err.println("DEBUG: The number of operations: "+Op.nofinstances);
2121             && (this.operations.type == Op.STRING || this.operations.type == Op.CHAR)
2126             if (this.operations.type == Op.STRING)
2128             else if (this.operations.getData() >= 0x10000) { // Op.CHAR