112 lines
2.8 KiB
JavaScript
112 lines
2.8 KiB
JavaScript
(function () {
|
|
"use strict";
|
|
|
|
var typeOf = require('remedial').typeOf,
|
|
maxText = 60,
|
|
wrap = require('wordwrap')(maxText);
|
|
|
|
function stringify(data) {
|
|
var handlers, indentLevel = '';
|
|
|
|
handlers = {
|
|
"undefined": function () {
|
|
// objects will not have `undefined` converted to `null`
|
|
// as this may have unintended consequences
|
|
// For arrays, however, this behavior seems appropriate
|
|
return 'null';
|
|
},
|
|
"null": function () {
|
|
return 'null';
|
|
},
|
|
"number": function (x) {
|
|
return x;
|
|
},
|
|
"boolean": function (x) {
|
|
return x ? 'true' : 'false';
|
|
},
|
|
"string": function (x) {
|
|
var output = '|';
|
|
if (x.length <= maxText && x.indexOf('\n') === -1) {
|
|
return JSON.stringify(x);
|
|
}
|
|
var text = wrap(x).split(/\\n|\n/);
|
|
indentLevel = indentLevel.replace(/$/, ' ');
|
|
text.forEach(function (y) {
|
|
output += '\n' + indentLevel + y;
|
|
|
|
});
|
|
indentLevel = indentLevel.replace(/ /, '');
|
|
|
|
return output;
|
|
},
|
|
"date": function (x) {
|
|
return x.toJSON();
|
|
},
|
|
"array": function (x) {
|
|
var output = '';
|
|
|
|
if (0 === x.length) {
|
|
output += '[]';
|
|
return output;
|
|
}
|
|
|
|
indentLevel = indentLevel.replace(/$/, ' ');
|
|
x.forEach(function (y) {
|
|
// TODO how should `undefined` be handled?
|
|
var handler = handlers[typeOf(y)];
|
|
|
|
if (!handler) {
|
|
throw new Error('what the crap: ' + typeOf(y));
|
|
}
|
|
|
|
output += '\n' + indentLevel + '- ' + handler(y);
|
|
|
|
});
|
|
indentLevel = indentLevel.replace(/ /, '');
|
|
|
|
return output;
|
|
},
|
|
"object": function (x) {
|
|
var output = '';
|
|
|
|
if (0 === Object.keys(x).length) {
|
|
output += '{}';
|
|
return output;
|
|
}
|
|
|
|
indentLevel = indentLevel.replace(/$/, ' ');
|
|
Object.keys(x).forEach(function (k) {
|
|
var val = x[k],
|
|
handler = handlers[typeOf(val)];
|
|
|
|
if ('undefined' === typeof val) {
|
|
// the user should do
|
|
// delete obj.key
|
|
// and not
|
|
// obj.key = undefined
|
|
// but we'll error on the side of caution
|
|
return;
|
|
}
|
|
|
|
if (!handler) {
|
|
throw new Error('what the crap: ' + typeOf(val));
|
|
}
|
|
|
|
output += '\n' + indentLevel + k + ': ' + handler(val);
|
|
});
|
|
indentLevel = indentLevel.replace(/ /, '');
|
|
|
|
return output;
|
|
},
|
|
"function": function () {
|
|
// TODO this should throw or otherwise be ignored
|
|
return '[object Function]';
|
|
}
|
|
};
|
|
|
|
return '---' + handlers[typeOf(data)](data) + '\n';
|
|
}
|
|
|
|
module.exports.stringify = stringify;
|
|
}());
|