This app provides monitoring and information features for the common freifunk user and the technical stuff of a freifunk community.
Code base is taken from a TUM Practical Course project and added here to see if Freifunk Altdorf can use it.
https://www.freifunk-altdorf.de
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154 lines
5.4 KiB
154 lines
5.4 KiB
var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g, |
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escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g, |
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gap, |
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indent, |
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meta = { // table of character substitutions |
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'\b': '\\b', |
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'\t': '\\t', |
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'\n': '\\n', |
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'\f': '\\f', |
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'\r': '\\r', |
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'"' : '\\"', |
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'\\': '\\\\' |
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}, |
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rep; |
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function quote(string) { |
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// If the string contains no control characters, no quote characters, and no |
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// backslash characters, then we can safely slap some quotes around it. |
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// Otherwise we must also replace the offending characters with safe escape |
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// sequences. |
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escapable.lastIndex = 0; |
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return escapable.test(string) ? '"' + string.replace(escapable, function (a) { |
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var c = meta[a]; |
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return typeof c === 'string' ? c : |
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'\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4); |
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}) + '"' : '"' + string + '"'; |
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} |
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function str(key, holder) { |
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// Produce a string from holder[key]. |
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var i, // The loop counter. |
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k, // The member key. |
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v, // The member value. |
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length, |
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mind = gap, |
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partial, |
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value = holder[key]; |
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|
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// If the value has a toJSON method, call it to obtain a replacement value. |
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if (value && typeof value === 'object' && |
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typeof value.toJSON === 'function') { |
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value = value.toJSON(key); |
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} |
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// If we were called with a replacer function, then call the replacer to |
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// obtain a replacement value. |
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if (typeof rep === 'function') { |
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value = rep.call(holder, key, value); |
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} |
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|
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// What happens next depends on the value's type. |
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switch (typeof value) { |
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case 'string': |
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return quote(value); |
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case 'number': |
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// JSON numbers must be finite. Encode non-finite numbers as null. |
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return isFinite(value) ? String(value) : 'null'; |
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case 'boolean': |
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case 'null': |
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// If the value is a boolean or null, convert it to a string. Note: |
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// typeof null does not produce 'null'. The case is included here in |
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// the remote chance that this gets fixed someday. |
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return String(value); |
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case 'object': |
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if (!value) return 'null'; |
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gap += indent; |
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partial = []; |
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|
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// Array.isArray |
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if (Object.prototype.toString.apply(value) === '[object Array]') { |
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length = value.length; |
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for (i = 0; i < length; i += 1) { |
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partial[i] = str(i, value) || 'null'; |
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} |
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// Join all of the elements together, separated with commas, and |
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// wrap them in brackets. |
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v = partial.length === 0 ? '[]' : gap ? |
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'[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' : |
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'[' + partial.join(',') + ']'; |
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gap = mind; |
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return v; |
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} |
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// If the replacer is an array, use it to select the members to be |
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// stringified. |
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if (rep && typeof rep === 'object') { |
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length = rep.length; |
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for (i = 0; i < length; i += 1) { |
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k = rep[i]; |
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if (typeof k === 'string') { |
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v = str(k, value); |
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if (v) { |
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partial.push(quote(k) + (gap ? ': ' : ':') + v); |
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} |
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} |
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} |
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} |
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else { |
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// Otherwise, iterate through all of the keys in the object. |
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for (k in value) { |
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if (Object.prototype.hasOwnProperty.call(value, k)) { |
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v = str(k, value); |
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if (v) { |
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partial.push(quote(k) + (gap ? ': ' : ':') + v); |
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} |
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} |
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} |
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} |
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// Join all of the member texts together, separated with commas, |
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// and wrap them in braces. |
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v = partial.length === 0 ? '{}' : gap ? |
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'{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' : |
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'{' + partial.join(',') + '}'; |
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gap = mind; |
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return v; |
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} |
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} |
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module.exports = function (value, replacer, space) { |
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var i; |
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gap = ''; |
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indent = ''; |
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// If the space parameter is a number, make an indent string containing that |
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// many spaces. |
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if (typeof space === 'number') { |
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for (i = 0; i < space; i += 1) { |
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indent += ' '; |
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} |
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} |
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// If the space parameter is a string, it will be used as the indent string. |
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else if (typeof space === 'string') { |
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indent = space; |
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} |
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|
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// If there is a replacer, it must be a function or an array. |
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// Otherwise, throw an error. |
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rep = replacer; |
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if (replacer && typeof replacer !== 'function' |
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&& (typeof replacer !== 'object' || typeof replacer.length !== 'number')) { |
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throw new Error('JSON.stringify'); |
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} |
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// Make a fake root object containing our value under the key of ''. |
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// Return the result of stringifying the value. |
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return str('', {'': value}); |
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};
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