json format:json数据格式化

luinstein · 发表于 2012-12-13 23:19:06

json数据格式化(json format)实现方法，直接上代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<body>
<div id="show_ajax"></div>
<textarea cols="100" rows="5" id="show_ajax2"></textarea>
<script>
/*
json-format v.1.1
http://github.com/phoboslab/json-format
Released under MIT license:
http://www.opensource.org/licenses/mit-license.php
*/
(function(window) {
var p = [],
push = function( m ) { return '\\' + p.push( m ) + '\\'; },
pop = function( m, i ) { return p[i-1] },
tabs = function( count ) { return new Array( count + 1 ).join( '\t' ); };
window.JSONFormat = function( json ) {
p = [];
var out = "",
indent = 0;
// Extract backslashes and strings
json = json
.replace( /\\./g, push )
.replace( /(".*?"|'.*?')/g, push )
.replace( /\s+/, '' );
// Indent and insert newlines
for( var i = 0; i < json.length; i++ ) {
var c = json.charAt(i);
switch(c) {
case '{':
case '[':
out += c + "\n" + tabs(++indent);
break;
case '}':
case ']':
out += "\n" + tabs(--indent) + c;
break;
case ',':
out += ",\n" + tabs(indent);
break;
case ':':
out += ": ";
break;
default:
out += c;
break;
}
}
// Strip whitespace from numeric arrays and put backslashes
// and strings back in
out = out
.replace( /\[[\d,\s]+?\]/g, function(m){ return m.replace(/\s/g,''); } )
.replace( /\\(\d+)\\/g, pop ) // strings
.replace( /\\(\d+)\\/g, pop ); // backslashes in strings
return out;
};
})(window);
var someJSONString = '{ "count": 5, "time_interval": 5 }'
var formattedJSONString = JSONFormat( someJSONString );
document.getElementById("show_ajax2").innerHTML =formattedJSONString;
</script>
</body>
</html>

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