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Java EncloseType.STOP_BACKTRACK属性代码示例

本文整理汇总了Java中jdk.nashorn.internal.runtime.regexp.joni.constants.EncloseType.STOP_BACKTRACK属性的典型用法代码示例。如果您正苦于以下问题：Java EncloseType.STOP_BACKTRACK属性的具体用法？Java EncloseType.STOP_BACKTRACK怎么用？Java EncloseType.STOP_BACKTRACK使用的例子？那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类jdk.nashorn.internal.runtime.regexp.joni.constants.EncloseType的用法示例。


在下文中一共展示了EncloseType.STOP_BACKTRACK属性的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: compileLengthEncloseNode

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;
}
开发者ID:SunburstApps，项目名称:OpenJSharp，代码行数:39，代码来源:ArrayCompiler.java

示例2: parseExpRepeat

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;
}
开发者ID:SunburstApps，项目名称:OpenJSharp，代码行数:34，代码来源:Parser.java

示例3: compileLengthEncloseNode

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;
}
开发者ID:RedlineResearch，项目名称:OLD-OpenJDK8，代码行数:39，代码来源:ArrayCompiler.java

示例4: parseExpRepeat

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;
}
开发者ID:RedlineResearch，项目名称:OLD-OpenJDK8，代码行数:33，代码来源:Parser.java

示例5: compileEncloseNode

@Override
protected void compileEncloseNode(final EncloseNode node) {
    int len;
    switch (node.type) {
    case EncloseType.MEMORY:
        if (bsAt(regex.btMemStart, node.regNum)) {
            addOpcode(OPCode.MEMORY_START_PUSH);
        } else {
            addOpcode(OPCode.MEMORY_START);
        }

        addMemNum(node.regNum);
        compileTree(node.target);

        if (bsAt(regex.btMemEnd, node.regNum)) {
            addOpcode(OPCode.MEMORY_END_PUSH);
        } else {
            addOpcode(OPCode.MEMORY_END);
        }
        addMemNum(node.regNum);
        break;

    case EncloseType.STOP_BACKTRACK:
        if (node.isStopBtSimpleRepeat()) {
            final QuantifierNode qn = (QuantifierNode)node.target;

            compileTreeNTimes(qn.target, qn.lower);

            len = compileLengthTree(qn.target);
            addOpcodeRelAddr(OPCode.PUSH, len + OPSize.POP + OPSize.JUMP);
            compileTree(qn.target);
            addOpcode(OPCode.POP);
            addOpcodeRelAddr(OPCode.JUMP, -(OPSize.PUSH + len + OPSize.POP + OPSize.JUMP));
        } else {
            addOpcode(OPCode.PUSH_STOP_BT);
            compileTree(node.target);
            addOpcode(OPCode.POP_STOP_BT);
        }
        break;

    default:
        newInternalException(ERR_PARSER_BUG);
        break;
    } // switch
}
开发者ID:SunburstApps，项目名称:OpenJSharp，代码行数:45，代码来源:ArrayCompiler.java

示例6: compileEncloseNode

@Override
protected void compileEncloseNode(EncloseNode node) {
    int len;
    switch (node.type) {
    case EncloseType.MEMORY:
        if (bsAt(regex.btMemStart, node.regNum)) {
            addOpcode(OPCode.MEMORY_START_PUSH);
        } else {
            addOpcode(OPCode.MEMORY_START);
        }

        addMemNum(node.regNum);
        compileTree(node.target);

        if (bsAt(regex.btMemEnd, node.regNum)) {
            addOpcode(OPCode.MEMORY_END_PUSH);
        } else {
            addOpcode(OPCode.MEMORY_END);
        }
        addMemNum(node.regNum);
        break;

    case EncloseType.STOP_BACKTRACK:
        if (node.isStopBtSimpleRepeat()) {
            QuantifierNode qn = (QuantifierNode)node.target;

            compileTreeNTimes(qn.target, qn.lower);

            len = compileLengthTree(qn.target);
            addOpcodeRelAddr(OPCode.PUSH, len + OPSize.POP + OPSize.JUMP);
            compileTree(qn.target);
            addOpcode(OPCode.POP);
            addOpcodeRelAddr(OPCode.JUMP, -(OPSize.PUSH + len + OPSize.POP + OPSize.JUMP));
        } else {
            addOpcode(OPCode.PUSH_STOP_BT);
            compileTree(node.target);
            addOpcode(OPCode.POP_STOP_BT);
        }
        break;

    default:
        newInternalException(ERR_PARSER_BUG);
        break;
    } // switch
}
开发者ID:RedlineResearch，项目名称:OLD-OpenJDK8，代码行数:45，代码来源:ArrayCompiler.java


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