Package cn.wanghaomiao.xpath.model

Examples of cn.wanghaomiao.xpath.model.Predicate

150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
     * @return
     */
    public Element filter(Element e,Node node) throws NoSuchFunctionException, NoSuchAxisException {
        if (node.getTagName().equals("*")||node.getTagName().equals(e.nodeName())){
            if (node.getPredicate()!=null){
                Predicate p = node.getPredicate();
                if (p.getOpEm()==null){
                    if (p.getValue().matches("\\d+")&&getElIndex(e)==Integer.parseInt(p.getValue())){
                        return e;
                    }else if (p.getValue().endsWith("()")&&(Boolean)callFilterFunc(p.getValue().substring(0,p.getValue().length()-2),e)){
                        return e;
                    }
                    //todo p.value ~= contains(./@href,'renren.com')
                }else {
                    if (p.getLeft().matches("[^/]+\\(\\)")){
                        Object filterRes=p.getOpEm().excute(callFilterFunc(p.getLeft().substring(0,p.getLeft().length()-2),e).toString(),p.getRight());
                        if (filterRes instanceof Boolean && (Boolean) filterRes){
                            return e;
                        }else if(filterRes instanceof Integer && e.siblingIndex()==Integer.parseInt(filterRes.toString())){
                            return e;
                        }
                    }else if (p.getLeft().startsWith("@")){
                        String lValue = e.attr(p.getLeft().substring(1));
                        Object filterRes = p.getOpEm().excute(lValue,p.getRight());
                        if ((Boolean) filterRes){
                            return e;
                        }
                    }else {
                        // 操作符左边不是函数、属性默认就是xpath表达式了
                        List<Element> eltmp = new LinkedList<Element>();
                        eltmp.add(e);
                        List<Object> rstmp=evaluate(p.getLeft(),new Elements(eltmp));
                        if ((Boolean) p.getOpEm().excute(StringUtils.join(rstmp,""),p.getRight())){
                            return e;
                        }
                    }
                }
            }else {
View Full Code Here
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
     * @return
     */
    public Element filter(Element e,Node node) throws NoSuchFunctionException, NoSuchAxisException {
        if (node.getTagName().equals("*")||node.getTagName().equals(e.nodeName())){
            if (node.getPredicate()!=null){
                Predicate p = node.getPredicate();
                if (p.getOpEm()==null){
                    if (p.getValue().matches("\\d+")&&getElIndex(e)==Integer.parseInt(p.getValue())){
                        return e;
                    }else if (p.getValue().endsWith("()")&&(Boolean)callFilterFunc(p.getValue().substring(0,p.getValue().length()-2),e)){
                        return e;
                    }
                    //todo p.value ~= contains(./@href,'renren.com')
                }else {
                    if (p.getLeft().matches("[^/]+\\(\\)")){
                        Object filterRes=p.getOpEm().excute(callFilterFunc(p.getLeft().substring(0,p.getLeft().length()-2),e).toString(),p.getRight());
                        if (filterRes instanceof Boolean && (Boolean) filterRes){
                            return e;
                        }else if(filterRes instanceof Integer && e.siblingIndex()==Integer.parseInt(filterRes.toString())){
                            return e;
                        }
                    }else if (p.getLeft().startsWith("@")){
                        String lValue = e.attr(p.getLeft().substring(1));
                        Object filterRes = p.getOpEm().excute(lValue,p.getRight());
                        if ((Boolean) filterRes){
                            return e;
                        }
                    }else {
                        // 操作符左边不是函数、属性默认就是xpath表达式了
                        List<Element> eltmp = new LinkedList<Element>();
                        eltmp.add(e);
                        List<Object> rstmp=evaluate(p.getLeft(),new Elements(eltmp));
                        if ((Boolean) p.getOpEm().excute(StringUtils.join(rstmp,""),p.getRight())){
                            return e;
                        }
                    }
                }
            }else {
View Full Code Here
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
     */
    public Predicate genPredicate(String pre){
        StringBuilder op = new StringBuilder();
        StringBuilder left = new StringBuilder();
        StringBuilder right = new StringBuilder();
        Predicate predicate = new Predicate();
        char[] preArray = pre.toCharArray();
        int index = preArray.length-1;
        int argDeep = 0;
        int opFlag = 0;
        if (pre.matches(".+(\\+|=|-|>|<|>=|<=|^=|\\*=|$=|~=|!=)'.+'")){
            while (index>=0){
                char tmp = preArray[index];
                if (tmp=='\''){
                    argDeep+=1;
                }
                if (argDeep==1&&tmp!='\''){
                    right.insert(0,tmp);
                }else if (argDeep==2&&EmMap.getInstance().commOpChar.contains(tmp)){
                    op.insert(0,tmp);
                    opFlag=1;
                }else if (argDeep>=2&&opFlag>0){
                    argDeep++;//取完操作符后剩下的都属于left
                    left.insert(0,tmp);
                }
                index-=1;
            }
        }else if (pre.matches(".+(\\+|=|-|>|<|>=|<=|^=|\\*=|$=|~=|!=)[^']+")){
            while (index>=0){
                char tmp = preArray[index];
                if (opFlag==0&&EmMap.getInstance().commOpChar.contains(tmp)){
                    op.insert(0,tmp);
                }else {
                    if (op.length()>0){
                        left.insert(0,tmp);
                        opFlag=1;
                    }else {
                        right.insert(0,tmp);
                    }
                }
                index-=1;
            }
        }

        predicate.setOpEm(EmMap.getInstance().opEmMap.get(op.toString()));
        predicate.setLeft(left.toString());
        predicate.setRight(right.toString());
        predicate.setValue(pre);
        return predicate;
    }
View Full Code Here
TOP

Related Classes of cn.wanghaomiao.xpath.model.Predicate

  • cn.wanghaomiao.xpath.core.NodeTreeBuilderStateMachine
  • cn.wanghaomiao.xpath.core.XpathEvaluator
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.