guard-5-min/static/js/jquery-print.js

109 lines
3.3 KiB
JavaScript

(function($) {
function print_array(obj, opts) {
var result = [];
for (var i = 0; i < Math.min(opts.max_array, obj.length); i++)
result.push($.print(obj[i], $.extend({}, opts, { max_array: 3, max_string: 40 })));
if (obj.length > opts.max_array)
result.push((obj.length - opts.max_array) + ' more...');
if (result.length == 0) return "[]"
return "[ " + result.join(", ") + " ]";
}
function print_element(obj) {
if (obj.nodeType == 1) {
var result = [];
var properties = [ 'className', 'id' ];
var extra = {
'input': ['type', 'name', 'value'],
'a': ['href', 'target'],
'form': ['method', 'action'],
'script': ['src'],
'link': ['href'],
'img': ['src']
};
$.each(properties.concat(extra[obj.tagName.toLowerCase()] || []), function(){
if (obj[this])
result.push(' ' + this.replace('className', 'class') + "=" + $.print(obj[this]))
});
return "<" + obj.tagName.toLowerCase()
+ result.join('') + ">";
}
}
function print_object(obj, opts) {
var seen = opts.seen || [ obj ];
var result = [], key, value;
for (var k in obj) {
if (obj.hasOwnProperty(k) && $.inArray(obj[k], seen) < 0) {
seen.push(obj[k]);
value = $.print(obj[k], $.extend({}, opts, { max_array: 6, max_string: 40, seen: seen }));
} else
value = "...";
result.push(k + ": " + value);
}
if (result.length == 0) return "{}";
return "{ " + result.join(", ") + " }";
}
function print_string(value, opts) {
var character_substitutions = {
'\b': '\\b',
'\t': '\\t',
'\n': '\\n',
'\f': '\\f',
'\r': '\\r',
'"' : '\\"',
'\\': '\\\\'
};
var r = /["\\\x00-\x1f\x7f-\x9f]/g;
var str = r.test(value)
? value.replace(r, function (a) {
var c = character_substitutions[a];
if (c) return c;
c = a.charCodeAt();
return '\\u00' + Math.floor(c / 16).toString(16) + (c % 16).toString(16);
})
: value ;
if (str.length > opts.max_string)
return str.slice(0, opts.max_string + 1) + '..."';
else
return str;
}
$.print = function(obj, options) {
var opts = $.extend({}, { max_array: 10, max_string: 100 }, options);
if (typeof obj == 'undefined')
return "undefined";
else if (typeof obj == 'boolean')
return obj.toString();
else if (typeof obj == 'number')
return obj.toString();
else if (!obj)
return "null";
else if (typeof obj == 'string')
return print_string(obj, opts);
else if (obj instanceof RegExp)
return obj.toString();
else if (obj instanceof Array || obj.callee || obj.item)
return print_array(obj, opts);
else if (typeof obj == 'function' || obj instanceof Function)
return obj.toString().match(/^([^)]*\))/)[1];
else if (obj.nodeType)
return print_element(obj);
else if (obj instanceof jQuery)
return "$(" + $.print(obj.get()) + ")";
else if (obj instanceof Error)
return print_object(obj, $.extend({}, options, { max_string: 200 }));
else if (obj instanceof Object)
return print_object(obj, opts);
else
return obj.toString().replace(/\n\s*/g, '');
}
})(jQuery);