public void splitChild()

in src/main/java/com/ql/util/express/match/QLPatternNode.java [125:237]
102 lines of code
38 McCabe index (conditional complexity)

    public void splitChild() throws Exception {
        String originalStr = this.originalContent;
        if ("(".equals(originalStr) || ")".equals(originalStr) || "|".equals(originalStr) || "||".equals(originalStr)
            || "/**".equals(originalStr) || "**/".equals(originalStr) || "*".equals(originalStr)
            || "->".equals(originalStr)) {
            this.matchMode = MatchMode.DETAIL;
            this.nodeType = this.nodeTypeManager.findNodeType(originalStr);
            return;
        }

        StringBuilder tempStr = new StringBuilder();
        int count = 0;
        for (int i = 0; i < originalStr.length(); i++) {
            if (originalStr.charAt(i) == '(') {
                tempStr.append(originalStr.charAt(i));
                count = count + 1;
            } else if (originalStr.charAt(i) == ')') {
                tempStr.append(originalStr.charAt(i));
                count = count - 1;
            } else if (count > 0) {
                tempStr.append(originalStr.charAt(i));
            } else if (originalStr.charAt(i) == '$') {
                if (this.matchMode != MatchMode.NULL
                    && this.matchMode != MatchMode.AND) {
                    throw new QLCompileException("不正确的模式串,在一个匹配模式中不能|,$并存,请使用字串模式:" + originalStr);
                }
                children.add(new QLPatternNode(this.nodeTypeManager, "ANONY_PATTERN",
                    tempStr.toString(), false, this.level + 1));
                this.matchMode = MatchMode.AND;
                tempStr = new StringBuilder();
            } else if (originalStr.charAt(i) == '|') {
                if (this.matchMode != MatchMode.NULL && this.matchMode != MatchMode.OR) {
                    throw new QLCompileException("不正确的模式串,在一个匹配模式中不能|,$并存,请使用字串模式:" + originalStr);
                }
                children.add(new QLPatternNode(this.nodeTypeManager, "ANONY_PATTERN",
                    tempStr.toString(), false, this.level + 1));
                this.matchMode = MatchMode.OR;
                tempStr = new StringBuilder();
            } else if (originalStr.charAt(i) == '#') {
                this.rootNodeType = this.nodeTypeManager.findNodeType(originalStr.substring(i + 1));
                break;
            } else {
                tempStr.append(originalStr.charAt(i));
            }
        }
        // 处理没有()的内容
        if (count > 0) {
            throw new QLCompileException("不正确的模式串,(没有找到对应的):" + originalStr);
        }

        if (!this.children.isEmpty()) {
            children.add(
                new QLPatternNode(this.nodeTypeManager, "ANONY_PATTERN", tempStr.toString(), false, this.level + 1));
            tempStr = new StringBuilder();
        }

        //需要剔除乘法*的情况
        if (tempStr.toString().endsWith("*") && tempStr.length() > 1) {
            this.minMatchNum = 0;
            this.maxMatchNum = Integer.MAX_VALUE;
            tempStr = new StringBuilder(tempStr.substring(0, tempStr.length() - 1));
        }

        if (tempStr.toString().endsWith("}")) {
            int index = tempStr.lastIndexOf("{");
            if (index > 0) {
                String numStr = tempStr.substring(index + 1, tempStr.length() - 1);
                int index2 = numStr.indexOf(':');
                if (index2 > 0) {
                    this.minMatchNum = Integer.parseInt(numStr.substring(0, index2));
                    this.maxMatchNum = Integer.parseInt(numStr.substring(index2 + 1));
                } else {
                    this.minMatchNum = Integer.parseInt(numStr);
                    this.maxMatchNum = Integer.parseInt(numStr);
                }
                tempStr = new StringBuilder(tempStr.substring(0, index));
            }
        }
        if (tempStr.toString().endsWith("^") && tempStr.length() > 1) {
            this.isTreeRoot = true;
            tempStr = new StringBuilder(tempStr.substring(0, tempStr.length() - 1));
        }

        if (tempStr.toString().endsWith("~") && tempStr.length() > 1) {
            this.isSkip = true;
            tempStr = new StringBuilder(tempStr.substring(0, tempStr.length() - 1));
        }
        if (tempStr.toString().endsWith("@") && tempStr.length() > 1) {
            this.blame = true;
            tempStr = new StringBuilder(tempStr.substring(0, tempStr.length() - 1));
        }

        //处理(ABC|bcd)模式
        if (tempStr.length() > 2 && tempStr.charAt(0) == '(' && tempStr.charAt(tempStr.length() - 1) == ')') {
            this.isChildMode = true;
            this.children.add(
                new QLPatternNode(this.nodeTypeManager, "ANONY_PATTERN", tempStr.substring(1, tempStr.length() - 1),
                    false, this.level + 1));
            this.matchMode = MatchMode.AND;
            tempStr = new StringBuilder();

        }

        int index = tempStr.indexOf("->");
        if (index > 0) {
            this.targetNodeType = this.nodeTypeManager.findNodeType(tempStr.substring(index + 2));
            tempStr = new StringBuilder(tempStr.substring(0, index));
        }
        if (tempStr.length() > 0) {
            this.matchMode = MatchMode.DETAIL;
            this.nodeType = this.nodeTypeManager.findNodeType(tempStr.toString());
        }
    }