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| <!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<script src="/js/jquery.js"></script>
<meta charset="utf-8" />
</head>
<body>
<textarea id="txtarea" rows="6"></textarea>
<input type="button" onclick="convertToJson()" value="转换" />
<textarea id="txtarearesult" rows="6"></textarea>
</body>
</html>
<script>
function convertToJson() {
var val = $("#txtarea").val();
var lines = val.split('\n');
var preNode = {};
var resultJson = [];
for (var i = 0; i < lines.length; i++) {
var line = lines[i];
var lastIndex = line.lastIndexOf("+");
var text = line.substr(lastIndex + 1, line.length);
var currentNode = { text: text, value: text, level: lastIndex, children: [] };
if (lastIndex == -1) {
resultJson.push(currentNode);
} else if (lastIndex > preNode.level) {
preNode.children.push(currentNode);
} else {
var node = getNodeBylevel(resultJson, lastIndex - 1);
if (node) {
node.children.push(currentNode);
} else {
resultJson.push(currentNode);
}
}
preNode = currentNode;
}
$("#txtarearesult").val(JSON.stringify(resultJson));
}
function getNodeBylevel(nodes, level) {
if (nodes && nodes[0].level == level) {
return nodes[nodes.length - 1];
} else {
return getNodeBylevel(nodes[nodes.length - 1].children, level);
}
};
</script>
|