jdk.nashorn.internal.runtime.regexp.joni.ast.QuantifierNode Java Examples

The following examples show how to use jdk.nashorn.internal.runtime.regexp.joni.ast.QuantifierNode. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: ArrayCompiler.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up 
private void compileRangeRepeatNode(final QuantifierNode qn, final int targetLen, final int emptyInfo) {
    final int numRepeat = regex.numRepeat;
    addOpcode(qn.greedy ? OPCode.REPEAT : OPCode.REPEAT_NG);
    addMemNum(numRepeat); /* OP_REPEAT ID */
    regex.numRepeat++;
    addRelAddr(targetLen + OPSize.REPEAT_INC);

    entryRepeatRange(numRepeat, qn.lower, qn.upper);

    compileTreeEmptyCheck(qn.target, emptyInfo);

    if (qn.isInRepeat()) {
        addOpcode(qn.greedy ? OPCode.REPEAT_INC_SG : OPCode.REPEAT_INC_NG_SG);
    } else {
        addOpcode(qn.greedy ? OPCode.REPEAT_INC : OPCode.REPEAT_INC_NG);
    }

    addMemNum(numRepeat); /* OP_REPEAT ID */
}
Example #2
Source File: ArrayCompiler.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 6 votes vote down vote up 
private void compileRangeRepeatNode(final QuantifierNode qn, final int targetLen, final int emptyInfo) {
    final int numRepeat = regex.numRepeat;
    addOpcode(qn.greedy ? OPCode.REPEAT : OPCode.REPEAT_NG);
    addMemNum(numRepeat); /* OP_REPEAT ID */
    regex.numRepeat++;
    addRelAddr(targetLen + OPSize.REPEAT_INC);

    entryRepeatRange(numRepeat, qn.lower, qn.upper);

    compileTreeEmptyCheck(qn.target, emptyInfo);

    if (qn.isInRepeat()) {
        addOpcode(qn.greedy ? OPCode.REPEAT_INC_SG : OPCode.REPEAT_INC_NG_SG);
    } else {
        addOpcode(qn.greedy ? OPCode.REPEAT_INC : OPCode.REPEAT_INC_NG);
    }

    addMemNum(numRepeat); /* OP_REPEAT ID */
}
Example #3
Source File: ArrayCompiler.java    From jdk8u60 with GNU General Public License v2.0 6 votes vote down vote up 
private void compileRangeRepeatNode(final QuantifierNode qn, final int targetLen, final int emptyInfo) {
    final int numRepeat = regex.numRepeat;
    addOpcode(qn.greedy ? OPCode.REPEAT : OPCode.REPEAT_NG);
    addMemNum(numRepeat); /* OP_REPEAT ID */
    regex.numRepeat++;
    addRelAddr(targetLen + OPSize.REPEAT_INC);

    entryRepeatRange(numRepeat, qn.lower, qn.upper);

    compileTreeEmptyCheck(qn.target, emptyInfo);

    if (qn.isInRepeat()) {
        addOpcode(qn.greedy ? OPCode.REPEAT_INC_SG : OPCode.REPEAT_INC_NG_SG);
    } else {
        addOpcode(qn.greedy ? OPCode.REPEAT_INC : OPCode.REPEAT_INC_NG);
    }

    addMemNum(numRepeat); /* OP_REPEAT ID */
}
Example #4
Source File: ArrayCompiler.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
private void compileRangeRepeatNode(final QuantifierNode qn, final int targetLen, final int emptyInfo) {
    final int numRepeat = regex.numRepeat;
    addOpcode(qn.greedy ? OPCode.REPEAT : OPCode.REPEAT_NG);
    addMemNum(numRepeat); /* OP_REPEAT ID */
    regex.numRepeat++;
    addRelAddr(targetLen + OPSize.REPEAT_INC);

    entryRepeatRange(numRepeat, qn.lower, qn.upper);

    compileTreeEmptyCheck(qn.target, emptyInfo);

    if (qn.isInRepeat()) {
        addOpcode(qn.greedy ? OPCode.REPEAT_INC_SG : OPCode.REPEAT_INC_NG_SG);
    } else {
        addOpcode(qn.greedy ? OPCode.REPEAT_INC : OPCode.REPEAT_INC_NG);
    }

    addMemNum(numRepeat); /* OP_REPEAT ID */
}
Example #5
Source File: ArrayCompiler.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
private void compileRangeRepeatNode(final QuantifierNode qn, final int targetLen, final int emptyInfo) {
    final int numRepeat = regex.numRepeat;
    addOpcode(qn.greedy ? OPCode.REPEAT : OPCode.REPEAT_NG);
    addMemNum(numRepeat); /* OP_REPEAT ID */
    regex.numRepeat++;
    addRelAddr(targetLen + OPSize.REPEAT_INC);

    entryRepeatRange(numRepeat, qn.lower, qn.upper);

    compileTreeEmptyCheck(qn.target, emptyInfo);

    if (qn.isInRepeat()) {
        addOpcode(qn.greedy ? OPCode.REPEAT_INC_SG : OPCode.REPEAT_INC_NG_SG);
    } else {
        addOpcode(qn.greedy ? OPCode.REPEAT_INC : OPCode.REPEAT_INC_NG);
    }

    addMemNum(numRepeat); /* OP_REPEAT ID */
}
Example #6
Source File: ArrayCompiler.java    From jdk8u_nashorn with GNU General Public License v2.0 6 votes vote down vote up 
private void compileRangeRepeatNode(final QuantifierNode qn, final int targetLen, final int emptyInfo) {
    final int numRepeat = regex.numRepeat;
    addOpcode(qn.greedy ? OPCode.REPEAT : OPCode.REPEAT_NG);
    addMemNum(numRepeat); /* OP_REPEAT ID */
    regex.numRepeat++;
    addRelAddr(targetLen + OPSize.REPEAT_INC);

    entryRepeatRange(numRepeat, qn.lower, qn.upper);

    compileTreeEmptyCheck(qn.target, emptyInfo);

    if (qn.isInRepeat()) {
        addOpcode(qn.greedy ? OPCode.REPEAT_INC_SG : OPCode.REPEAT_INC_NG_SG);
    } else {
        addOpcode(qn.greedy ? OPCode.REPEAT_INC : OPCode.REPEAT_INC_NG);
    }

    addMemNum(numRepeat); /* OP_REPEAT ID */
}
Example #7
Source File: ArrayCompiler.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
private void compileRangeRepeatNode(final QuantifierNode qn, final int targetLen, final int emptyInfo) {
    final int numRepeat = regex.numRepeat;
    addOpcode(qn.greedy ? OPCode.REPEAT : OPCode.REPEAT_NG);
    addMemNum(numRepeat); /* OP_REPEAT ID */
    regex.numRepeat++;
    addRelAddr(targetLen + OPSize.REPEAT_INC);

    entryRepeatRange(numRepeat, qn.lower, qn.upper);

    compileTreeEmptyCheck(qn.target, emptyInfo);

    if (qn.isInRepeat()) {
        addOpcode(qn.greedy ? OPCode.REPEAT_INC_SG : OPCode.REPEAT_INC_NG_SG);
    } else {
        addOpcode(qn.greedy ? OPCode.REPEAT_INC : OPCode.REPEAT_INC_NG);
    }

    addMemNum(numRepeat); /* OP_REPEAT ID */
}
Example #8
Source File: ArrayCompiler.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 5 votes vote down vote up 
private int compileLengthEncloseNode(final EncloseNode node) {
    if (node.isOption()) {
        return compileLengthOptionNode(node);
    }

    int tlen;
    if (node.target != null) {
        tlen = compileLengthTree(node.target);
    } else {
        tlen = 0;
    }

    int len;
    switch (node.type) {
    case EncloseType.MEMORY:
        if (bsAt(regex.btMemStart, node.regNum)) {
            len = OPSize.MEMORY_START_PUSH;
        } else {
            len = OPSize.MEMORY_START;
        }
        len += tlen + (bsAt(regex.btMemEnd, node.regNum) ? OPSize.MEMORY_END_PUSH : OPSize.MEMORY_END);
        break;

    case EncloseType.STOP_BACKTRACK:
        if (node.isStopBtSimpleRepeat()) {
            final QuantifierNode qn = (QuantifierNode)node.target;
            tlen = compileLengthTree(qn.target);
            len = tlen * qn.lower + OPSize.PUSH + tlen + OPSize.POP + OPSize.JUMP;
        } else {
            len = OPSize.PUSH_STOP_BT + tlen + OPSize.POP_STOP_BT;
        }
        break;

    default:
        newInternalException(ERR_PARSER_BUG);
        return 0; // not reached
    } // switch
    return len;
}
Example #9
Source File: Parser.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 5 votes vote down vote up 
private Node parseExpRepeat(final Node targetp, final boolean group) {
    Node target = targetp;
    while (token.type == TokenType.OP_REPEAT || token.type == TokenType.INTERVAL) { // repeat:
        if (target.isInvalidQuantifier()) {
            throw new SyntaxException(ERR_TARGET_OF_REPEAT_OPERATOR_INVALID);
        }

        final QuantifierNode qtfr = new QuantifierNode(token.getRepeatLower(),
                                                 token.getRepeatUpper(),
                                                 token.type == TokenType.INTERVAL);

        qtfr.greedy = token.getRepeatGreedy();
        final int ret = qtfr.setQuantifier(target, group, env, chars, getBegin(), getEnd());
        Node qn = qtfr;

        if (token.getRepeatPossessive()) {
            final EncloseNode en = new EncloseNode(EncloseType.STOP_BACKTRACK); // node_new_enclose
            en.setTarget(qn);
            qn = en;
        }

        if (ret == 0) {
            target = qn;
        } else if (ret == 2) { /* split case: /abc+/ */
            target = ConsAltNode.newListNode(target, null);
            final ConsAltNode tmp = ((ConsAltNode)target).setCdr(ConsAltNode.newListNode(qn, null));

            fetchToken();
            return parseExpRepeatForCar(target, tmp, group);
        }
        fetchToken(); // goto re_entry
    }
    return target;
}
Example #10
Source File: Lexer.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
private void fetchTokenFor_metaChars() {
    if (c == syntax.metaCharTable.anyChar) {
        token.type = TokenType.ANYCHAR;
    } else if (c == syntax.metaCharTable.anyTime) {
        fetchTokenFor_repeat(0, QuantifierNode.REPEAT_INFINITE);
    }  else if (c == syntax.metaCharTable.zeroOrOneTime) {
        fetchTokenFor_repeat(0, 1);
    } else if (c == syntax.metaCharTable.oneOrMoreTime) {
        fetchTokenFor_repeat(1, QuantifierNode.REPEAT_INFINITE);
    } else if (c == syntax.metaCharTable.anyCharAnyTime) {
        token.type = TokenType.ANYCHAR_ANYTIME;
        // goto out
    }
}
Example #11
Source File: Parser.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
private Node parseExpRepeat(final Node targetp, final boolean group) {
    Node target = targetp;
    while (token.type == TokenType.OP_REPEAT || token.type == TokenType.INTERVAL) { // repeat:
        if (target.isInvalidQuantifier()) {
            throw new SyntaxException(ERR_TARGET_OF_REPEAT_OPERATOR_INVALID);
        }

        final QuantifierNode qtfr = new QuantifierNode(token.getRepeatLower(),
                                                 token.getRepeatUpper(),
                                                 token.type == TokenType.INTERVAL);

        qtfr.greedy = token.getRepeatGreedy();
        final int ret = qtfr.setQuantifier(target, group, env, chars, getBegin(), getEnd());
        Node qn = qtfr;

        if (token.getRepeatPossessive()) {
            final EncloseNode en = new EncloseNode(EncloseType.STOP_BACKTRACK); // node_new_enclose
            en.setTarget(qn);
            qn = en;
        }

        if (ret == 0) {
            target = qn;
        } else if (ret == 2) { /* split case: /abc+/ */
            target = ConsAltNode.newListNode(target, null);
            final ConsAltNode tmp = ((ConsAltNode)target).setCdr(ConsAltNode.newListNode(qn, null));

            fetchToken();
            return parseExpRepeatForCar(target, tmp, group);
        }
        fetchToken(); // goto re_entry
    }
    return target;
}
Example #12
Source File: Lexer.java    From jdk8u60 with GNU General Public License v2.0 5 votes vote down vote up 
private void fetchTokenFor_metaChars() {
    if (c == syntax.metaCharTable.anyChar) {
        token.type = TokenType.ANYCHAR;
    } else if (c == syntax.metaCharTable.anyTime) {
        fetchTokenFor_repeat(0, QuantifierNode.REPEAT_INFINITE);
    }  else if (c == syntax.metaCharTable.zeroOrOneTime) {
        fetchTokenFor_repeat(0, 1);
    } else if (c == syntax.metaCharTable.oneOrMoreTime) {
        fetchTokenFor_repeat(1, QuantifierNode.REPEAT_INFINITE);
    } else if (c == syntax.metaCharTable.anyCharAnyTime) {
        token.type = TokenType.ANYCHAR_ANYTIME;
        // goto out
    }
}
Example #13
Source File: Parser.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
private Node parseExpRepeat(final Node targetp, final boolean group) {
    Node target = targetp;
    while (token.type == TokenType.OP_REPEAT || token.type == TokenType.INTERVAL) { // repeat:
        if (target.isInvalidQuantifier()) {
            throw new SyntaxException(ERR_TARGET_OF_REPEAT_OPERATOR_INVALID);
        }

        final QuantifierNode qtfr = new QuantifierNode(token.getRepeatLower(),
                                                 token.getRepeatUpper(),
                                                 token.type == TokenType.INTERVAL);

        qtfr.greedy = token.getRepeatGreedy();
        final int ret = qtfr.setQuantifier(target, group, env, chars, getBegin(), getEnd());
        Node qn = qtfr;

        if (token.getRepeatPossessive()) {
            final EncloseNode en = new EncloseNode(EncloseType.STOP_BACKTRACK); // node_new_enclose
            en.setTarget(qn);
            qn = en;
        }

        if (ret == 0) {
            target = qn;
        } else if (ret == 2) { /* split case: /abc+/ */
            target = ConsAltNode.newListNode(target, null);
            final ConsAltNode tmp = ((ConsAltNode)target).setCdr(ConsAltNode.newListNode(qn, null));

            fetchToken();
            return parseExpRepeatForCar(target, tmp, group);
        }
        fetchToken(); // goto re_entry
    }
    return target;
}
Example #14
Source File: Lexer.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
private void fetchTokenFor_metaChars() {
    if (c == syntax.metaCharTable.anyChar) {
        token.type = TokenType.ANYCHAR;
    } else if (c == syntax.metaCharTable.anyTime) {
        fetchTokenFor_repeat(0, QuantifierNode.REPEAT_INFINITE);
    }  else if (c == syntax.metaCharTable.zeroOrOneTime) {
        fetchTokenFor_repeat(0, 1);
    } else if (c == syntax.metaCharTable.oneOrMoreTime) {
        fetchTokenFor_repeat(1, QuantifierNode.REPEAT_INFINITE);
    } else if (c == syntax.metaCharTable.anyCharAnyTime) {
        token.type = TokenType.ANYCHAR_ANYTIME;
        // goto out
    }
}
Example #15
Source File: Analyser.java    From nashorn with GNU General Public License v2.0 5 votes vote down vote up 
private boolean checkTypeTree(Node node, int typeMask, int encloseMask, int anchorMask) {
    if ((node.getType2Bit() & typeMask) == 0) return true;

    boolean invalid = false;

    switch(node.getType()) {
    case NodeType.LIST:
    case NodeType.ALT:
        ConsAltNode can = (ConsAltNode)node;
        do {
            invalid = checkTypeTree(can.car, typeMask, encloseMask, anchorMask);
        } while (!invalid && (can = can.cdr) != null);
        break;

    case NodeType.QTFR:
        invalid = checkTypeTree(((QuantifierNode)node).target, typeMask, encloseMask, anchorMask);
        break;

    case NodeType.ENCLOSE:
        EncloseNode en = (EncloseNode)node;
        if ((en.type & encloseMask) == 0) return true;
        invalid = checkTypeTree(en.target, typeMask, encloseMask, anchorMask);
        break;

    case NodeType.ANCHOR:
        AnchorNode an = (AnchorNode)node;
        if ((an.type & anchorMask) == 0) return true;

        if (an.target != null) invalid = checkTypeTree(an.target, typeMask, encloseMask, anchorMask);
        break;

    default:
        break;

    } // switch

    return invalid;
}
Example #16
Source File: Lexer.java    From nashorn with GNU General Public License v2.0 5 votes vote down vote up 
private void fetchTokenFor_metaChars() {
    if (c == syntax.metaCharTable.anyChar) {
        token.type = TokenType.ANYCHAR;
    } else if (c == syntax.metaCharTable.anyTime) {
        fetchTokenFor_repeat(0, QuantifierNode.REPEAT_INFINITE);
    }  else if (c == syntax.metaCharTable.zeroOrOneTime) {
        fetchTokenFor_repeat(0, 1);
    } else if (c == syntax.metaCharTable.oneOrMoreTime) {
        fetchTokenFor_repeat(1, QuantifierNode.REPEAT_INFINITE);
    } else if (c == syntax.metaCharTable.anyCharAnyTime) {
        token.type = TokenType.ANYCHAR_ANYTIME;
        // goto out
    }
}
Example #17
Source File: ArrayCompiler.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
private int compileLengthEncloseNode(final EncloseNode node) {
    if (node.isOption()) {
        return compileLengthOptionNode(node);
    }

    int tlen;
    if (node.target != null) {
        tlen = compileLengthTree(node.target);
    } else {
        tlen = 0;
    }

    int len;
    switch (node.type) {
    case EncloseType.MEMORY:
        if (bsAt(regex.btMemStart, node.regNum)) {
            len = OPSize.MEMORY_START_PUSH;
        } else {
            len = OPSize.MEMORY_START;
        }
        len += tlen + (bsAt(regex.btMemEnd, node.regNum) ? OPSize.MEMORY_END_PUSH : OPSize.MEMORY_END);
        break;

    case EncloseType.STOP_BACKTRACK:
        if (node.isStopBtSimpleRepeat()) {
            final QuantifierNode qn = (QuantifierNode)node.target;
            tlen = compileLengthTree(qn.target);
            len = tlen * qn.lower + OPSize.PUSH + tlen + OPSize.POP + OPSize.JUMP;
        } else {
            len = OPSize.PUSH_STOP_BT + tlen + OPSize.POP_STOP_BT;
        }
        break;

    default:
        newInternalException(ERR_PARSER_BUG);
        return 0; // not reached
    } // switch
    return len;
}
Example #18
Source File: ArrayCompiler.java    From nashorn with GNU General Public License v2.0 5 votes vote down vote up 
private int compileLengthEncloseNode(EncloseNode node) {
    if (node.isOption()) {
        return compileLengthOptionNode(node);
    }

    int tlen;
    if (node.target != null) {
        tlen = compileLengthTree(node.target);
    } else {
        tlen = 0;
    }

    int len;
    switch (node.type) {
    case EncloseType.MEMORY:
        if (bsAt(regex.btMemStart, node.regNum)) {
            len = OPSize.MEMORY_START_PUSH;
        } else {
            len = OPSize.MEMORY_START;
        }
        len += tlen + (bsAt(regex.btMemEnd, node.regNum) ? OPSize.MEMORY_END_PUSH : OPSize.MEMORY_END);
        break;

    case EncloseType.STOP_BACKTRACK:
        if (node.isStopBtSimpleRepeat()) {
            QuantifierNode qn = (QuantifierNode)node.target;
            tlen = compileLengthTree(qn.target);
            len = tlen * qn.lower + OPSize.PUSH + tlen + OPSize.POP + OPSize.JUMP;
        } else {
            len = OPSize.PUSH_STOP_BT + tlen + OPSize.POP_STOP_BT;
        }
        break;

    default:
        newInternalException(ERR_PARSER_BUG);
        return 0; // not reached
    } // switch
    return len;
}
Example #19
Source File: Analyser.java    From openjdk-8-source with GNU General Public License v2.0 5 votes vote down vote up 
private boolean checkTypeTree(Node node, int typeMask, int encloseMask, int anchorMask) {
    if ((node.getType2Bit() & typeMask) == 0) return true;

    boolean invalid = false;

    switch(node.getType()) {
    case NodeType.LIST:
    case NodeType.ALT:
        ConsAltNode can = (ConsAltNode)node;
        do {
            invalid = checkTypeTree(can.car, typeMask, encloseMask, anchorMask);
        } while (!invalid && (can = can.cdr) != null);
        break;

    case NodeType.QTFR:
        invalid = checkTypeTree(((QuantifierNode)node).target, typeMask, encloseMask, anchorMask);
        break;

    case NodeType.ENCLOSE:
        EncloseNode en = (EncloseNode)node;
        if ((en.type & encloseMask) == 0) return true;
        invalid = checkTypeTree(en.target, typeMask, encloseMask, anchorMask);
        break;

    case NodeType.ANCHOR:
        AnchorNode an = (AnchorNode)node;
        if ((an.type & anchorMask) == 0) return true;

        if (an.target != null) invalid = checkTypeTree(an.target, typeMask, encloseMask, anchorMask);
        break;

    default:
        break;

    } // switch

    return invalid;
}
Example #20
Source File: Lexer.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 5 votes vote down vote up 
private void fetchTokenFor_metaChars() {
    if (c == syntax.metaCharTable.anyChar) {
        token.type = TokenType.ANYCHAR;
    } else if (c == syntax.metaCharTable.anyTime) {
        fetchTokenFor_repeat(0, QuantifierNode.REPEAT_INFINITE);
    }  else if (c == syntax.metaCharTable.zeroOrOneTime) {
        fetchTokenFor_repeat(0, 1);
    } else if (c == syntax.metaCharTable.oneOrMoreTime) {
        fetchTokenFor_repeat(1, QuantifierNode.REPEAT_INFINITE);
    } else if (c == syntax.metaCharTable.anyCharAnyTime) {
        token.type = TokenType.ANYCHAR_ANYTIME;
        // goto out
    }
}
Example #21
Source File: Parser.java    From openjdk-8 with GNU General Public License v2.0 5 votes vote down vote up 
private Node parseExpRepeat(Node target, boolean group) {
    while (token.type == TokenType.OP_REPEAT || token.type == TokenType.INTERVAL) { // repeat:
        if (target.isInvalidQuantifier()) {
            throw new SyntaxException(ERR_TARGET_OF_REPEAT_OPERATOR_INVALID);
        }

        QuantifierNode qtfr = new QuantifierNode(token.getRepeatLower(),
                                                 token.getRepeatUpper(),
                                                 token.type == TokenType.INTERVAL);

        qtfr.greedy = token.getRepeatGreedy();
        int ret = qtfr.setQuantifier(target, group, env, chars, getBegin(), getEnd());
        Node qn = qtfr;

        if (token.getRepeatPossessive()) {
            EncloseNode en = new EncloseNode(EncloseType.STOP_BACKTRACK); // node_new_enclose
            en.setTarget(qn);
            qn = en;
        }

        if (ret == 0) {
            target = qn;
        } else if (ret == 2) { /* split case: /abc+/ */
            target = ConsAltNode.newListNode(target, null);
            ConsAltNode tmp = ((ConsAltNode)target).setCdr(ConsAltNode.newListNode(qn, null));

            fetchToken();
            return parseExpRepeatForCar(target, tmp, group);
        }
        fetchToken(); // goto re_entry
    }
    return target;
}
Example #22
Source File: ArrayCompiler.java    From openjdk-8 with GNU General Public License v2.0 5 votes vote down vote up 
private int compileLengthEncloseNode(EncloseNode node) {
    if (node.isOption()) {
        return compileLengthOptionNode(node);
    }

    int tlen;
    if (node.target != null) {
        tlen = compileLengthTree(node.target);
    } else {
        tlen = 0;
    }

    int len;
    switch (node.type) {
    case EncloseType.MEMORY:
        if (bsAt(regex.btMemStart, node.regNum)) {
            len = OPSize.MEMORY_START_PUSH;
        } else {
            len = OPSize.MEMORY_START;
        }
        len += tlen + (bsAt(regex.btMemEnd, node.regNum) ? OPSize.MEMORY_END_PUSH : OPSize.MEMORY_END);
        break;

    case EncloseType.STOP_BACKTRACK:
        if (node.isStopBtSimpleRepeat()) {
            QuantifierNode qn = (QuantifierNode)node.target;
            tlen = compileLengthTree(qn.target);
            len = tlen * qn.lower + OPSize.PUSH + tlen + OPSize.POP + OPSize.JUMP;
        } else {
            len = OPSize.PUSH_STOP_BT + tlen + OPSize.POP_STOP_BT;
        }
        break;

    default:
        newInternalException(ERR_PARSER_BUG);
        return 0; // not reached
    } // switch
    return len;
}
Example #23
Source File: Parser.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
private Node parseExpRepeat(final Node targetp, final boolean group) {
    Node target = targetp;
    while (token.type == TokenType.OP_REPEAT || token.type == TokenType.INTERVAL) { // repeat:
        if (target.isInvalidQuantifier()) {
            throw new SyntaxException(ERR_TARGET_OF_REPEAT_OPERATOR_INVALID);
        }

        final QuantifierNode qtfr = new QuantifierNode(token.getRepeatLower(),
                                                 token.getRepeatUpper(),
                                                 token.type == TokenType.INTERVAL);

        qtfr.greedy = token.getRepeatGreedy();
        final int ret = qtfr.setQuantifier(target, group, env, chars, getBegin(), getEnd());
        Node qn = qtfr;

        if (token.getRepeatPossessive()) {
            final EncloseNode en = new EncloseNode(EncloseType.STOP_BACKTRACK); // node_new_enclose
            en.setTarget(qn);
            qn = en;
        }

        if (ret == 0) {
            target = qn;
        } else if (ret == 2) { /* split case: /abc+/ */
            target = ConsAltNode.newListNode(target, null);
            final ConsAltNode tmp = ((ConsAltNode)target).setCdr(ConsAltNode.newListNode(qn, null));

            fetchToken();
            return parseExpRepeatForCar(target, tmp, group);
        }
        fetchToken(); // goto re_entry
    }
    return target;
}
Example #24
Source File: Lexer.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
private void fetchTokenFor_metaChars() {
    if (c == syntax.metaCharTable.anyChar) {
        token.type = TokenType.ANYCHAR;
    } else if (c == syntax.metaCharTable.anyTime) {
        fetchTokenFor_repeat(0, QuantifierNode.REPEAT_INFINITE);
    }  else if (c == syntax.metaCharTable.zeroOrOneTime) {
        fetchTokenFor_repeat(0, 1);
    } else if (c == syntax.metaCharTable.oneOrMoreTime) {
        fetchTokenFor_repeat(1, QuantifierNode.REPEAT_INFINITE);
    } else if (c == syntax.metaCharTable.anyCharAnyTime) {
        token.type = TokenType.ANYCHAR_ANYTIME;
        // goto out
    }
}
Example #25
Source File: ArrayCompiler.java    From hottub with GNU General Public License v2.0 5 votes vote down vote up 
private int compileLengthEncloseNode(final EncloseNode node) {
    if (node.isOption()) {
        return compileLengthOptionNode(node);
    }

    int tlen;
    if (node.target != null) {
        tlen = compileLengthTree(node.target);
    } else {
        tlen = 0;
    }

    int len;
    switch (node.type) {
    case EncloseType.MEMORY:
        if (bsAt(regex.btMemStart, node.regNum)) {
            len = OPSize.MEMORY_START_PUSH;
        } else {
            len = OPSize.MEMORY_START;
        }
        len += tlen + (bsAt(regex.btMemEnd, node.regNum) ? OPSize.MEMORY_END_PUSH : OPSize.MEMORY_END);
        break;

    case EncloseType.STOP_BACKTRACK:
        if (node.isStopBtSimpleRepeat()) {
            final QuantifierNode qn = (QuantifierNode)node.target;
            tlen = compileLengthTree(qn.target);
            len = tlen * qn.lower + OPSize.PUSH + tlen + OPSize.POP + OPSize.JUMP;
        } else {
            len = OPSize.PUSH_STOP_BT + tlen + OPSize.POP_STOP_BT;
        }
        break;

    default:
        newInternalException(ERR_PARSER_BUG);
        return 0; // not reached
    } // switch
    return len;
}
Example #26
Source File: Parser.java    From hottub with GNU General Public License v2.0 5 votes vote down vote up 
private Node parseExpRepeat(final Node targetp, final boolean group) {
    Node target = targetp;
    while (token.type == TokenType.OP_REPEAT || token.type == TokenType.INTERVAL) { // repeat:
        if (target.isInvalidQuantifier()) {
            throw new SyntaxException(ERR_TARGET_OF_REPEAT_OPERATOR_INVALID);
        }

        final QuantifierNode qtfr = new QuantifierNode(token.getRepeatLower(),
                                                 token.getRepeatUpper(),
                                                 token.type == TokenType.INTERVAL);

        qtfr.greedy = token.getRepeatGreedy();
        final int ret = qtfr.setQuantifier(target, group, env, chars, getBegin(), getEnd());
        Node qn = qtfr;

        if (token.getRepeatPossessive()) {
            final EncloseNode en = new EncloseNode(EncloseType.STOP_BACKTRACK); // node_new_enclose
            en.setTarget(qn);
            qn = en;
        }

        if (ret == 0) {
            target = qn;
        } else if (ret == 2) { /* split case: /abc+/ */
            target = ConsAltNode.newListNode(target, null);
            final ConsAltNode tmp = ((ConsAltNode)target).setCdr(ConsAltNode.newListNode(qn, null));

            fetchToken();
            return parseExpRepeatForCar(target, tmp, group);
        }
        fetchToken(); // goto re_entry
    }
    return target;
}
Example #27
Source File: Lexer.java    From openjdk-8-source with GNU General Public License v2.0 5 votes vote down vote up 
private void fetchTokenFor_metaChars() {
    if (c == syntax.metaCharTable.anyChar) {
        token.type = TokenType.ANYCHAR;
    } else if (c == syntax.metaCharTable.anyTime) {
        fetchTokenFor_repeat(0, QuantifierNode.REPEAT_INFINITE);
    }  else if (c == syntax.metaCharTable.zeroOrOneTime) {
        fetchTokenFor_repeat(0, 1);
    } else if (c == syntax.metaCharTable.oneOrMoreTime) {
        fetchTokenFor_repeat(1, QuantifierNode.REPEAT_INFINITE);
    } else if (c == syntax.metaCharTable.anyCharAnyTime) {
        token.type = TokenType.ANYCHAR_ANYTIME;
        // goto out
    }
}
Example #28
Source File: ArrayCompiler.java    From jdk8u_nashorn with GNU General Public License v2.0 5 votes vote down vote up 
private int compileLengthEncloseNode(final EncloseNode node) {
    if (node.isOption()) {
        return compileLengthOptionNode(node);
    }

    int tlen;
    if (node.target != null) {
        tlen = compileLengthTree(node.target);
    } else {
        tlen = 0;
    }

    int len;
    switch (node.type) {
    case EncloseType.MEMORY:
        if (bsAt(regex.btMemStart, node.regNum)) {
            len = OPSize.MEMORY_START_PUSH;
        } else {
            len = OPSize.MEMORY_START;
        }
        len += tlen + (bsAt(regex.btMemEnd, node.regNum) ? OPSize.MEMORY_END_PUSH : OPSize.MEMORY_END);
        break;

    case EncloseType.STOP_BACKTRACK:
        if (node.isStopBtSimpleRepeat()) {
            final QuantifierNode qn = (QuantifierNode)node.target;
            tlen = compileLengthTree(qn.target);
            len = tlen * qn.lower + OPSize.PUSH + tlen + OPSize.POP + OPSize.JUMP;
        } else {
            len = OPSize.PUSH_STOP_BT + tlen + OPSize.POP_STOP_BT;
        }
        break;

    default:
        newInternalException(ERR_PARSER_BUG);
        return 0; // not reached
    } // switch
    return len;
}
Example #29
Source File: Analyser.java    From TencentKona-8 with GNU General Public License v2.0 4 votes vote down vote up 
private int quantifiersMemoryInfo(final Node node) {
    int info = 0;

    switch(node.getType()) {
    case NodeType.LIST:
    case NodeType.ALT:
        ConsAltNode can = (ConsAltNode)node;
        do {
            final int v = quantifiersMemoryInfo(can.car);
            if (v > info) {
                info = v;
            }
        } while ((can = can.cdr) != null);
        break;

    case NodeType.QTFR:
        final QuantifierNode qn = (QuantifierNode)node;
        if (qn.upper != 0) {
            info = quantifiersMemoryInfo(qn.target);
        }
        break;

    case NodeType.ENCLOSE:
        final EncloseNode en = (EncloseNode)node;
        switch (en.type) {
        case EncloseType.MEMORY:
            return TargetInfo.IS_EMPTY_MEM;

        case EncloseType.OPTION:
        case EncloseNode.STOP_BACKTRACK:
            info = quantifiersMemoryInfo(en.target);
            break;

        default:
            break;
        } // inner switch
        break;

    case NodeType.BREF:
    case NodeType.STR:
    case NodeType.CTYPE:
    case NodeType.CCLASS:
    case NodeType.CANY:
    case NodeType.ANCHOR:
    default:
        break;
    } // switch

    return info;
}
Example #30
Source File: ArrayCompiler.java    From nashorn with GNU General Public License v2.0 4 votes vote down vote up 
private int compileLengthTree(Node node) {
    int len = 0;

    switch (node.getType()) {
    case NodeType.LIST:
        ConsAltNode lin = (ConsAltNode)node;
        do {
            len += compileLengthTree(lin.car);
        } while ((lin = lin.cdr) != null);
        break;

    case NodeType.ALT:
        ConsAltNode aln = (ConsAltNode)node;
        int n = 0;
        do {
            len += compileLengthTree(aln.car);
            n++;
        } while ((aln = aln.cdr) != null);
        len += (OPSize.PUSH + OPSize.JUMP) * (n - 1);
        break;

    case NodeType.STR:
        StringNode sn = (StringNode)node;
        if (sn.isRaw()) {
            len = compileLengthStringRawNode(sn);
        } else {
            len = compileLengthStringNode(sn);
        }
        break;

    case NodeType.CCLASS:
        len = compileLengthCClassNode((CClassNode)node);
        break;

    case NodeType.CTYPE:
    case NodeType.CANY:
        len = OPSize.OPCODE;
        break;

    case NodeType.BREF:
        BackRefNode br = (BackRefNode)node;

        len = ((!isIgnoreCase(regex.options) && br.backRef <= 2)
                ? OPSize.OPCODE : (OPSize.OPCODE + OPSize.MEMNUM));
        break;

    case NodeType.QTFR:
        len = compileNonCECLengthQuantifierNode((QuantifierNode)node);
        break;

    case NodeType.ENCLOSE:
        len = compileLengthEncloseNode((EncloseNode)node);
        break;

    case NodeType.ANCHOR:
        len = compileLengthAnchorNode((AnchorNode)node);
        break;

    default:
        newInternalException(ERR_PARSER_BUG);

    } //switch
    return len;
}