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Greasemonkey Script to format JSON
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| // ==UserScript== | |
| // @name Make JSON Pretty | |
| // @version 0.1 | |
| // @description Make JSON look nice | |
| // @include *.json | |
| // @grant none | |
| // ==/UserScript== | |
| function prettySource(obj) { | |
| var maxDepth = 250, | |
| depth = 0, | |
| root = true, | |
| sp = " ", | |
| dig; | |
| function objProp (prop) { | |
| if (prop===null) { | |
| return "<span style='color:#A6BE88; font-style:italic;'>null</span>,\n"; | |
| } | |
| var t = (typeof(prop)+"").toLowerCase(); | |
| if (Object.prototype.toString.apply(prop)==="[object Object]" || Object.prototype.toString.apply(prop)==="[object Array]") { | |
| return branch(prop).replace(/\n/gim,'\n'+sp) + ",\n"; | |
| } | |
| else if (t==="function") { | |
| return "<span style='color:#0A0;'>" + (prop+"").replace("<","<").replace(">",">").replace(/function\s?\(/,"function <strong>"+((prop.constructor&&prop.constructor.name)||prop.name||"")+"</strong>(").replace(/\n/gim,'\n ') + "</span>,\n"; | |
| } | |
| else if (t==="string") { | |
| return "<span style='color:#D0D;'>\"" + prop + "\"</span>,\n"; | |
| } | |
| else if (t==="number") { | |
| return "<span style='color:#F00;'>" + prop + "</span>,\n"; | |
| } | |
| else if (t==="boolean") { | |
| return "<span style='color:#00D;'>" + (prop===true?"true":"false") + "</span>,\n"; | |
| } | |
| return (prop.toSource || prop.toString)().replace(/^\((new\s)?(.+)\)$/,'$2') + ",\n"; | |
| } | |
| function branch (what) { | |
| var wasRoot=root===true, x, dig, text="", m=0; | |
| root = false; | |
| if (depth>maxDepth) { | |
| return "<span style='color:#AAA; font-style:italic;'>[Maximum Depth Reached]</span>"; | |
| } | |
| depth++; | |
| if (Object.prototype.toString.apply(what)==="[object Array]") { | |
| text = "<pre style='color:#555; display:"+(wasRoot===false?"inline":"block")+"; margin:0; padding:0;'><strong>[</strong>\n"; | |
| for (x=0; x<what.length; x++) { | |
| dig = (x+"# ").length; | |
| text += sp.substring(0,4-dig) + "<span style='color:#ABC; font-style:italic;'>#" + x + "</span> " + objProp(what[x]); | |
| } | |
| return text.replace(/\,\n$/,'\n') + "<strong>]</strong></pre>"; | |
| } | |
| else if (Object.prototype.toString.apply(what)==="[object Object]") { | |
| text = "<pre style='color:#555; display:"+(wasRoot===false?"inline":"block")+"; margin:0; padding:0;'><strong>{</strong>\n"; | |
| for (x in what) { | |
| if (what.hasOwnProperty(x)) { | |
| m = Math.max(m,(x+"").length); | |
| } | |
| } | |
| m += 1; | |
| for (x in what) { | |
| if (what.hasOwnProperty(x)) { | |
| text += sp + "<span style='color:#089;'>" + x + "</span>"+(new Array(m-(x+"").length).join(" "))+" : " + objProp(what[x]); | |
| } | |
| } | |
| return text.replace(/\,\n$/,'\n') + "<strong>}</strong></pre>"; | |
| } | |
| } | |
| var r = branch(obj); | |
| sp = root = branch = objProp = null; | |
| return r; | |
| } | |
| /*START*/ | |
| if (document.getElementById('jsonify_pretty_print')) { | |
| location.href += ""; | |
| } | |
| else { | |
| var src = '', | |
| relaxedMode = true; | |
| txt = document.body.textContent.split('\n').join(' ').replace(/^[^\{\[]*/gim,'').replace(/[^\}\]]*$/gim,''); | |
| if (window.JSON && window.JSON.parse) { | |
| try { | |
| src = prettySource(JSON.parse(txt)); | |
| } catch(err) { | |
| relaxedMode = confirm('Invalid JSON; strict parse failed.\n\nParse in relaxed mode?')===true; | |
| if (!relaxedMode) { | |
| return false; | |
| } | |
| } | |
| } | |
| if (relaxedMode===true) { | |
| try { | |
| src = prettySource(eval('('+txt+')')); | |
| } catch(err) { | |
| alert('Invalid JSON; relaxed parse failed.\n\nWARNING: This JSON output will not parse in most web browsers.'); | |
| return false; | |
| } | |
| } | |
| document.open('text/html'); | |
| document.write('<html><body><span id="jsonify_pretty_print"><\/span><pre>'+src+'<\/pre><\/body><\/html>'); | |
| document.close(); | |
| } |
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