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Files
eruda/test/util.js
2018-06-15 08:32:21 +08:00

1926 lines
54 KiB
JavaScript

// Built by eustia.
(function(root, factory)
{
if (typeof define === 'function' && define.amd)
{
define([], factory);
} else if (typeof module === 'object' && module.exports)
{
module.exports = factory();
} else { root.util = factory(); }
}(this, function ()
{
"use strict";
var _ = {};
if (typeof window === 'object' && window.util) _ = window.util;
/* ------------------------------ noop ------------------------------ */
var noop = _.noop = (function () {
/* A no-operation function.
*
* ```javascript
* noop(); // Does nothing
* ```
*/
/* module
* env: all
* test: all
*/
function exports() {}
return exports;
})();
/* ------------------------------ isObj ------------------------------ */
var isObj = _.isObj = (function () {
/* Check if value is the language type of Object.
*
* |Name |Type |Desc |
* |------|-------|--------------------------|
* |val |* |Value to check |
* |return|boolean|True if value is an object|
*
* [Language Spec](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
*
* ```javascript
* isObj({}); // -> true
* isObj([]); // -> true
* ```
*/
/* module
* env: all
* test: all
*/
function exports(val) {
var type = typeof val;
return !!val && (type === 'function' || type === 'object');
}
return exports;
})();
/* ------------------------------ allKeys ------------------------------ */
var allKeys = _.allKeys = (function () {
/* Retrieve all the names of object's own and inherited properties.
*
* |Name |Type |Desc |
* |------|------|---------------------------|
* |obj |object|Object to query |
* |return|array |Array of all property names|
*
* > Members of Object's prototype won't be retrieved.
*
* ```javascript
* var obj = Object.create({zero: 0});
* obj.one = 1;
* allKeys(obj) // -> ['zero', 'one']
* ```
*/
/* module
* env: all
* test: all
*/
function exports(obj) {
var ret = [],
key;
for (key in obj) ret.push(key);
return ret;
}
return exports;
})();
/* ------------------------------ isUndef ------------------------------ */
var isUndef = _.isUndef = (function () {
/* Check if value is undefined.
*
* |Name |Type |Desc |
* |------|-------|--------------------------|
* |val |* |Value to check |
* |return|boolean|True if value is undefined|
*
* ```javascript
* isUndef(void 0); // -> true
* isUndef(null); // -> false
* ```
*/
/* module
* env: all
* test: all
*/
function exports(val) {
return val === void 0;
}
return exports;
})();
/* ------------------------------ ucs2 ------------------------------ */
var ucs2 = _.ucs2 = (function (exports) {
/* UCS-2 encoding and decoding.
*
* ### encode
*
* Create a string using an array of code point values.
*
* |Name |Type |Desc |
* |------|------|--------------------|
* |arr |array |Array of code points|
* |return|string|Encoded string |
*
* ### decode
*
* Create an array of code point values using a string.
*
* |Name |Type |Desc |
* |------|------|--------------------|
* |str |string|Input string |
* |return|array |Array of code points|
*
* ```javascript
* ucs2.encode([0x61, 0x62, 0x63]); // -> 'abc'
* ucs2.decode('abc'); // -> [0x61, 0x62, 0x63]
* '𝌆'.length; // -> 2
* ucs2.decode('𝌆').length; // -> 1
* ```
*/
/* module
* env: all
* test: all
*/
// https://mathiasbynens.be/notes/javascript-encoding
exports = {
encode: function(arr) {
return String.fromCodePoint.apply(String, arr);
},
decode: function(str) {
var ret = [];
var i = 0,
len = str.length;
while (i < len) {
var c = str.charCodeAt(i++);
// A high surrogate
if (c >= 0xd800 && c <= 0xdbff && i < len) {
var tail = str.charCodeAt(i++);
// nextC >= 0xDC00 && nextC <= 0xDFFF
if ((tail & 0xfc00) === 0xdc00) {
// C = (H - 0xD800) * 0x400 + L - 0xDC00 + 0x10000
ret.push(((c & 0x3ff) << 10) + (tail & 0x3ff) + 0x10000);
} else {
ret.push(c);
i--;
}
} else {
ret.push(c);
}
}
return ret;
}
};
return exports;
})({});
/* ------------------------------ utf8 ------------------------------ */
var utf8 = _.utf8 = (function (exports) {
/* UTF-8 encoding and decoding.
*
* ### encode
*
* Turn any UTF-8 decoded string into UTF-8 encoded string.
*
* |Name |Type |Desc |
* |------|------|----------------|
* |str |string|String to encode|
* |return|string|Encoded string |
*
* ### decode
*
* |Name |Type |Desc |
* |------------|-------|----------------------|
* |str |string |String to decode |
* |[safe=false]|boolean|Suppress error if true|
* |return |string |Decoded string |
*
* Turn any UTF-8 encoded string into UTF-8 decoded string.
*
* ```javascript
* utf8.encode('\uD800\uDC00'); // -> '\xF0\x90\x80\x80'
* utf8.decode('\xF0\x90\x80\x80'); // -> '\uD800\uDC00'
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* ucs2
*/
// https://encoding.spec.whatwg.org/#utf-8
exports = {
encode: function(str) {
var codePoints = ucs2.decode(str);
var byteArr = '';
for (var i = 0, len = codePoints.length; i < len; i++) {
byteArr += encodeCodePoint(codePoints[i]);
}
return byteArr;
},
decode: function decode(str, safe) {
byteArr = ucs2.decode(str);
byteIdx = 0;
byteCount = byteArr.length;
codePoint = 0;
bytesSeen = 0;
bytesNeeded = 0;
lowerBoundary = 0x80;
upperBoundary = 0xbf;
var codePoints = [];
var tmp;
while ((tmp = decodeCodePoint(safe)) !== false) {
codePoints.push(tmp);
}
return ucs2.encode(codePoints);
}
};
var fromCharCode = String.fromCharCode;
function encodeCodePoint(codePoint) {
// U+0000 to U+0080, ASCII code point
if ((codePoint & 0xffffff80) === 0) {
return fromCharCode(codePoint);
}
var ret = '',
count,
offset;
// U+0080 to U+07FF, inclusive
if ((codePoint & 0xfffff800) === 0) {
count = 1;
offset = 0xc0;
} else if ((codePoint & 0xffff0000) === 0) {
// U+0800 to U+FFFF, inclusive
count = 2;
offset = 0xe0;
} else if ((codePoint & 0xffe00000) == 0) {
// U+10000 to U+10FFFF, inclusive
count = 3;
offset = 0xf0;
}
ret += fromCharCode((codePoint >> (6 * count)) + offset);
while (count > 0) {
var tmp = codePoint >> (6 * (count - 1));
ret += fromCharCode(0x80 | (tmp & 0x3f));
count--;
}
return ret;
}
var byteArr,
byteIdx,
byteCount,
codePoint,
bytesSeen,
bytesNeeded,
lowerBoundary,
upperBoundary;
function decodeCodePoint(safe) {
/* eslint-disable no-constant-condition */
while (true) {
if (byteIdx >= byteCount && bytesNeeded) {
if (safe) return goBack();
throw new Error('Invalid byte index');
}
if (byteIdx === byteCount) return false;
var byte = byteArr[byteIdx];
byteIdx++;
if (!bytesNeeded) {
// 0x00 to 0x7F
if ((byte & 0x80) === 0) {
return byte;
}
// 0xC2 to 0xDF
if ((byte & 0xe0) === 0xc0) {
bytesNeeded = 1;
codePoint = byte & 0x1f;
} else if ((byte & 0xf0) === 0xe0) {
// 0xE0 to 0xEF
if (byte === 0xe0) lowerBoundary = 0xa0;
if (byte === 0xed) upperBoundary = 0x9f;
bytesNeeded = 2;
codePoint = byte & 0xf;
} else if ((byte & 0xf8) === 0xf0) {
// 0xF0 to 0xF4
if (byte === 0xf0) lowerBoundary = 0x90;
if (byte === 0xf4) upperBoundary = 0x8f;
bytesNeeded = 3;
codePoint = byte & 0x7;
} else {
if (safe) return goBack();
throw new Error('Invalid UTF-8 detected');
}
continue;
}
if (byte < lowerBoundary || byte > upperBoundary) {
if (safe) {
byteIdx--;
return goBack();
}
throw new Error('Invalid continuation byte');
}
lowerBoundary = 0x80;
upperBoundary = 0xbf;
codePoint = (codePoint << 6) | (byte & 0x3f);
bytesSeen++;
if (bytesSeen !== bytesNeeded) continue;
var tmp = codePoint;
codePoint = 0;
bytesNeeded = 0;
bytesSeen = 0;
return tmp;
}
}
function goBack() {
var start = byteIdx - bytesSeen - 1;
byteIdx = start + 1;
codePoint = 0;
bytesNeeded = 0;
bytesSeen = 0;
lowerBoundary = 0x80;
upperBoundary = 0xbf;
return byteArr[start];
}
return exports;
})({});
/* ------------------------------ optimizeCb ------------------------------ */
var optimizeCb = _.optimizeCb = (function () {
/* Used for function context binding.
*/
/* module
* env: all
* test: all
*/
/* dependencies
* isUndef
*/
function exports(fn, ctx, argCount) {
if (isUndef(ctx)) return fn;
switch (argCount == null ? 3 : argCount) {
case 1:
return function(val) {
return fn.call(ctx, val);
};
case 3:
return function(val, idx, collection) {
return fn.call(ctx, val, idx, collection);
};
case 4:
return function(accumulator, val, idx, collection) {
return fn.call(ctx, accumulator, val, idx, collection);
};
}
return function() {
return fn.apply(ctx, arguments);
};
}
return exports;
})();
/* ------------------------------ toStr ------------------------------ */
var toStr = _.toStr = (function () {
/* Convert value to a string.
*
* |Name |Type |Desc |
* |------|------|----------------|
* |val |* |Value to convert|
* |return|string|Resulted string |
*
* ```javascript
* toStr(null); // -> ''
* toStr(1); // -> '1'
* toStr(false); // -> 'false'
* toStr([1, 2, 3]); // -> '1,2,3'
* ```
*/
/* module
* env: all
* test: all
*/
function exports(val) {
return val == null ? '' : val.toString();
}
return exports;
})();
/* ------------------------------ has ------------------------------ */
var has = _.has = (function () {
/* Checks if key is a direct property.
*
* |Name |Type |Desc |
* |------|-------|--------------------------------|
* |obj |object |Object to query |
* |key |string |Path to check |
* |return|boolean|True if key is a direct property|
*
* ```javascript
* has({one: 1}, 'one'); // -> true
* ```
*/
/* module
* env: all
* test: all
*/
var hasOwnProp = Object.prototype.hasOwnProperty;
function exports(obj, key) {
return hasOwnProp.call(obj, key);
}
return exports;
})();
/* ------------------------------ identity ------------------------------ */
var identity = _.identity = (function () {
/* Return the first argument given.
*
* |Name |Type|Desc |
* |------|----|-----------|
* |val |* |Any value |
* |return|* |Given value|
*
* ```javascript
* identity('a'); // -> 'a'
* ```
*/
/* module
* env: all
* test: all
*/
function exports(val) {
return val;
}
return exports;
})();
/* ------------------------------ objToStr ------------------------------ */
var objToStr = _.objToStr = (function () {
/* Alias of Object.prototype.toString.
*
* |Name |Type |Desc |
* |------|------|------------------------------------|
* |value |* |Source value |
* |return|string|String representation of given value|
*
* ```javascript
* objToStr(5); // -> '[object Number]'
* ```
*/
/* module
* env: all
* test: all
*/
var ObjToStr = Object.prototype.toString;
function exports(val) {
return ObjToStr.call(val);
}
return exports;
})();
/* ------------------------------ isArgs ------------------------------ */
var isArgs = _.isArgs = (function () {
/* Check if value is classified as an arguments object.
*
* |Name |Type |Desc |
* |------|-------|------------------------------------|
* |val |* |Value to check |
* |return|boolean|True if value is an arguments object|
*
* ```javascript
* (function () {
* isArgs(arguments); // -> true
* })();
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* objToStr
*/
function exports(val) {
return objToStr(val) === '[object Arguments]';
}
return exports;
})();
/* ------------------------------ isFn ------------------------------ */
var isFn = _.isFn = (function () {
/* Check if value is a function.
*
* |Name |Type |Desc |
* |------|-------|---------------------------|
* |val |* |Value to check |
* |return|boolean|True if value is a function|
*
* Generator function is also classified as true.
*
* ```javascript
* isFn(function() {}); // -> true
* isFn(function*() {}); // -> true
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* objToStr
*/
function exports(val) {
var objStr = objToStr(val);
return (
objStr === '[object Function]' ||
objStr === '[object GeneratorFunction]'
);
}
return exports;
})();
/* ------------------------------ isNum ------------------------------ */
var isNum = _.isNum = (function () {
/* Check if value is classified as a Number primitive or object.
*
* |Name |Type |Desc |
* |------|-------|-------------------------------------|
* |val |* |Value to check |
* |return|boolean|True if value is correctly classified|
*
* ```javascript
* isNum(5); // -> true
* isNum(5.1); // -> true
* isNum({}); // -> false
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* objToStr
*/
function exports(val) {
return objToStr(val) === '[object Number]';
}
return exports;
})();
/* ------------------------------ isArrLike ------------------------------ */
var isArrLike = _.isArrLike = (function () {
/* Check if value is array-like.
*
* |Name |Type |Desc |
* |------|-------|---------------------------|
* |val |* |Value to check |
* |return|boolean|True if value is array like|
*
* > Function returns false.
*
* ```javascript
* isArrLike('test'); // -> true
* isArrLike(document.body.children); // -> true;
* isArrLike([1, 2, 3]); // -> true
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* isNum isFn
*/
var MAX_ARR_IDX = Math.pow(2, 53) - 1;
function exports(val) {
if (!val) return false;
var len = val.length;
return isNum(len) && len >= 0 && len <= MAX_ARR_IDX && !isFn(val);
}
return exports;
})();
/* ------------------------------ isArr ------------------------------ */
var isArr = _.isArr = (function (exports) {
/* Check if value is an `Array` object.
*
* |Name |Type |Desc |
* |------|-------|----------------------------------|
* |val |* |Value to check |
* |return|boolean|True if value is an `Array` object|
*
* ```javascript
* isArr([]); // -> true
* isArr({}); // -> false
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* objToStr
*/
exports =
Array.isArray ||
function(val) {
return objToStr(val) === '[object Array]';
};
return exports;
})({});
/* ------------------------------ isBrowser ------------------------------ */
var isBrowser = _.isBrowser = (function (exports) {
/* Check if running in a browser.
*
* ```javascript
* console.log(isBrowser); // -> true if running in a browser
* ```
*/
/* module
* env: all
* test: all
*/
exports =
typeof window === 'object' &&
typeof document === 'object' &&
document.nodeType === 9;
return exports;
})({});
/* ------------------------------ root ------------------------------ */
var root = _.root = (function (exports) {
/* Root object reference, `global` in nodeJs, `window` in browser. */
/* module
* env: all
* test: all
*/
/* dependencies
* isBrowser
*/
exports = isBrowser ? window : global;
return exports;
})({});
/* ------------------------------ detectMocha ------------------------------ */
var detectMocha = _.detectMocha = (function () {
/* Detect if mocha is running.
*
* ```javascript
* detectMocha(); // -> True if mocha is running.
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* root
*/
function exports() {
for (var i = 0, len = methods.length; i < len; i++) {
var method = methods[i];
if (typeof root[method] !== 'function') return false;
}
return true;
}
var methods = ['afterEach', 'after', 'beforeEach', 'before', 'describe', 'it'];
return exports;
})();
/* ------------------------------ keys ------------------------------ */
var keys = _.keys = (function (exports) {
/* Create an array of the own enumerable property names of object.
*
* |Name |Type |Desc |
* |------|------|-----------------------|
* |obj |object|Object to query |
* |return|array |Array of property names|
*
* ```javascript
* keys({a: 1}); // -> ['a']
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* has detectMocha
*/
if (Object.keys && !detectMocha()) {
exports = Object.keys;
} else {
exports = function(obj) {
var ret = [],
key;
for (key in obj) {
if (has(obj, key)) ret.push(key);
}
return ret;
};
}
return exports;
})({});
/* ------------------------------ each ------------------------------ */
var each = _.each = (function () {
/* Iterate over elements of collection and invokes iteratee for each element.
*
* |Name |Type |Desc |
* |--------|------------|------------------------------|
* |obj |object array|Collection to iterate over |
* |iteratee|function |Function invoked per iteration|
* |[ctx] |* |Function context |
*
* ```javascript
* each({'a': 1, 'b': 2}, function (val, key) {});
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* isArrLike keys optimizeCb
*/
function exports(obj, iteratee, ctx) {
iteratee = optimizeCb(iteratee, ctx);
var i, len;
if (isArrLike(obj)) {
for (i = 0, len = obj.length; i < len; i++) iteratee(obj[i], i, obj);
} else {
var _keys = keys(obj);
for (i = 0, len = _keys.length; i < len; i++) {
iteratee(obj[_keys[i]], _keys[i], obj);
}
}
return obj;
}
return exports;
})();
/* ------------------------------ createAssigner ------------------------------ */
var createAssigner = _.createAssigner = (function () {
/* Used to create extend, extendOwn and defaults.
*
* |Name |Type |Desc |
* |--------|--------|------------------------------|
* |keysFn |function|Function to get object keys |
* |defaults|boolean |No override when set to true |
* |return |function|Result function, extend... |
*/
/* module
* env: all
* test: all
*/
/* dependencies
* isUndef each
*/
function exports(keysFn, defaults) {
return function(obj) {
each(arguments, function(src, idx) {
if (idx === 0) return;
var keys = keysFn(src);
each(keys, function(key) {
if (!defaults || isUndef(obj[key])) obj[key] = src[key];
});
});
return obj;
};
}
return exports;
})();
/* ------------------------------ defaults ------------------------------ */
var defaults = _.defaults = (function (exports) {
/* Fill in undefined properties in object with the first value present in the following list of defaults objects.
*
* |Name |Type |Desc |
* |------|------|------------------|
* |obj |object|Destination object|
* |*src |object|Sources objects |
* |return|object|Destination object|
*
* ```javascript
* defaults({name: 'RedHood'}, {name: 'Unknown', age: 24}); // -> {name: 'RedHood', age: 24}
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* createAssigner allKeys
*/
exports = createAssigner(allKeys, true);
return exports;
})({});
/* ------------------------------ extendOwn ------------------------------ */
var extendOwn = _.extendOwn = (function (exports) {
/* Like extend, but only copies own properties over to the destination object.
*
* |Name |Type |Desc |
* |------|------|------------------|
* |obj |object|Destination object|
* |*src |object|Sources objects |
* |return|object|Destination object|
*
* ```javascript
* extendOwn({name: 'RedHood'}, {age: 24}); // -> {name: 'RedHood', age: 24}
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* keys createAssigner
*/
exports = createAssigner(keys);
return exports;
})({});
/* ------------------------------ isStr ------------------------------ */
var isStr = _.isStr = (function () {
/* Check if value is a string primitive.
*
* |Name |Type |Desc |
* |------|-------|-----------------------------------|
* |val |* |Value to check |
* |return|boolean|True if value is a string primitive|
*
* ```javascript
* isStr('licia'); // -> true
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* objToStr
*/
function exports(val) {
return objToStr(val) === '[object String]';
}
return exports;
})();
/* ------------------------------ isEmpty ------------------------------ */
var isEmpty = _.isEmpty = (function () {
/* Check if value is an empty object or array.
*
* |Name |Type |Desc |
* |------|-------|----------------------|
* |val |* |Value to check |
* |return|boolean|True if value is empty|
*
* ```javascript
* isEmpty([]); // -> true
* isEmpty({}); // -> true
* isEmpty(''); // -> true
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* isArrLike isArr isStr isArgs keys
*/
function exports(val) {
if (val == null) return true;
if (isArrLike(val) && (isArr(val) || isStr(val) || isArgs(val))) {
return val.length === 0;
}
return keys(val).length === 0;
}
return exports;
})();
/* ------------------------------ isMatch ------------------------------ */
var isMatch = _.isMatch = (function () {
/* Check if keys and values in src are contained in obj.
*
* |Name |Type |Desc |
* |------|-------|----------------------------------|
* |obj |object |Object to inspect |
* |src |object |Object of property values to match|
* |return|boolean|True if object is match |
*
* ```javascript
* isMatch({a: 1, b: 2}, {a: 1}); // -> true
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* keys
*/
function exports(obj, src) {
var _keys = keys(src),
len = _keys.length;
if (obj == null) return !len;
obj = Object(obj);
for (var i = 0; i < len; i++) {
var key = _keys[i];
if (src[key] !== obj[key] || !(key in obj)) return false;
}
return true;
}
return exports;
})();
/* ------------------------------ ltrim ------------------------------ */
var ltrim = _.ltrim = (function () {
/* Remove chars or white-spaces from beginning of string.
*
* |Name |Type |Desc |
* |------|------------|------------------|
* |str |string |String to trim |
* |chars |string array|Characters to trim|
* |return|string |Trimmed string |
*
* ```javascript
* ltrim(' abc '); // -> 'abc '
* ltrim('_abc_', '_'); // -> 'abc_'
* ltrim('_abc_', ['a', '_']); // -> 'bc_'
* ```
*/
/* module
* env: all
* test: all
*/
var regSpace = /^\s+/;
function exports(str, chars) {
if (chars == null) return str.replace(regSpace, '');
var start = 0,
len = str.length,
charLen = chars.length,
found = true,
i,
c;
while (found && start < len) {
found = false;
i = -1;
c = str.charAt(start);
while (++i < charLen) {
if (c === chars[i]) {
found = true;
start++;
break;
}
}
}
return start >= len ? '' : str.substr(start, len);
}
return exports;
})();
/* ------------------------------ matcher ------------------------------ */
var matcher = _.matcher = (function () {
/* Return a predicate function that checks if attrs are contained in an object.
*
* |Name |Type |Desc |
* |------|--------|----------------------------------|
* |attrs |object |Object of property values to match|
* |return|function|New predicate function |
*
* ```javascript
* var objects = [
* {a: 1, b: 2, c: 3 },
* {a: 4, b: 5, c: 6 }
* ];
* filter(objects, matcher({a: 4, c: 6 })); // -> [{a: 4, b: 5, c: 6 }]
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* extendOwn isMatch
*/
function exports(attrs) {
attrs = extendOwn({}, attrs);
return function(obj) {
return isMatch(obj, attrs);
};
}
return exports;
})();
/* ------------------------------ safeCb ------------------------------ */
var safeCb = _.safeCb = (function (exports) {
/* Create callback based on input value.
*/
/* module
* env: all
* test: all
*/
/* dependencies
* isFn isObj optimizeCb matcher identity
*/
exports = function(val, ctx, argCount) {
if (val == null) return identity;
if (isFn(val)) return optimizeCb(val, ctx, argCount);
if (isObj(val)) return matcher(val);
return function(key) {
return function(obj) {
return obj == null ? undefined : obj[key];
};
};
};
return exports;
})({});
/* ------------------------------ filter ------------------------------ */
var filter = _.filter = (function () {
/* Iterates over elements of collection, returning an array of all the values that pass a truth test.
*
* |Name |Type |Desc |
* |---------|--------|---------------------------------------|
* |obj |array |Collection to iterate over |
* |predicate|function|Function invoked per iteration |
* |[ctx] |* |Predicate context |
* |return |array |Array of all values that pass predicate|
*
* ```javascript
* filter([1, 2, 3, 4, 5], function (val)
* {
* return val % 2 === 0;
* }); // -> [2, 4]
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* safeCb each
*/
function exports(obj, predicate, ctx) {
var ret = [];
predicate = safeCb(predicate, ctx);
each(obj, function(val, idx, list) {
if (predicate(val, idx, list)) ret.push(val);
});
return ret;
}
return exports;
})();
/* ------------------------------ evalCss ------------------------------ */
_.evalCss = (function () {
/* Eval css.
*/
/* dependencies
* toStr each filter
*/
var styleList = [],
scale = 1;
function exports(css, container) {
css = toStr(css);
for (var i = 0, len = styleList.length; i < len; i++) {
if (styleList[i].css === css) return;
}
container = container || exports.container || document.head;
const el = document.createElement('style');
el.type = 'text/css';
container.appendChild(el);
let style = { css, el, container };
resetStyle(style);
styleList.push(style);
return style;
}
exports.setScale = function(s) {
scale = s;
each(styleList, style => resetStyle(style));
};
exports.clear = function() {
each(styleList, ({ container, el }) => container.removeChild(el));
styleList = [];
};
exports.remove = function(style) {
styleList = filter(styleList, s => s !== style);
style.container.removeChild(style.el);
};
function resetStyle({ css, el }) {
el.innerText = css.replace(/(\d+)px/g, ($0, $1) => +$1 * scale + 'px');
}
return exports;
})();
/* ------------------------------ map ------------------------------ */
var map = _.map = (function () {
/* Create an array of values by running each element in collection through iteratee.
*
* |Name |Type |Desc |
* |--------|------------|------------------------------|
* |obj |array object|Collection to iterate over |
* |iteratee|function |Function invoked per iteration|
* |[ctx] |* |Function context |
* |return |array |New mapped array |
*
* ```javascript
* map([4, 8], function (n) { return n * n; }); // -> [16, 64]
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* safeCb keys isArrLike
*/
function exports(obj, iteratee, ctx) {
iteratee = safeCb(iteratee, ctx);
var _keys = !isArrLike(obj) && keys(obj),
len = (_keys || obj).length,
results = Array(len);
for (var i = 0; i < len; i++) {
var curKey = _keys ? _keys[i] : i;
results[i] = iteratee(obj[curKey], curKey, obj);
}
return results;
}
return exports;
})();
/* ------------------------------ decodeUriComponent ------------------------------ */
var decodeUriComponent = _.decodeUriComponent = (function () {
/* Better decodeURIComponent that does not throw if input is invalid.
*
* |Name |Type |Desc |
* |------|------|----------------|
* |str |string|String to decode|
* |return|string|Decoded string |
*
* ```javascript
* decodeUriComponent('%%25%'); // -> '%%%'
* decodeUriComponent('%E0%A4%A'); // -> '\xE0\xA4%A'
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* each ucs2 map utf8
*/
function exports(str) {
try {
return decodeURIComponent(str);
} catch (e) {
var replaceMap = {};
var matches = str.match(regMatcher);
each(matches, function(match) {
str = str.replace(match, decode(match));
});
return str;
}
}
function decode(str) {
str = str.split('%').slice(1);
var bytes = map(str, hexToInt);
str = ucs2.encode(bytes);
str = utf8.decode(str, true);
return str;
}
function hexToInt(numStr) {
return +('0x' + numStr);
}
var regMatcher = /(%[a-f0-9]{2})+/gi;
return exports;
})();
/* ------------------------------ cookie ------------------------------ */
_.cookie = (function (exports) {
/* Simple api for handling browser cookies.
*
* ### get
*
* Get cookie value.
*
* |Name |Type |Desc |
* |------|------|--------------------------|
* |key |string|Cookie key |
* |return|string|Corresponding cookie value|
*
* ### set
*
* Set cookie value.
*
* |Name |Type |Desc |
* |---------|-------|--------------|
* |key |string |Cookie key |
* |val |string |Cookie value |
* |[options]|object |Cookie options|
* |return |exports|Module cookie |
*
* ### remove
*
* Remove cookie value.
*
* |Name |Type |Desc |
* |---------|-------|--------------|
* |key |string |Cookie key |
* |[options]|object |Cookie options|
* |return |exports|Module cookie |
*
* ```javascript
* cookie.set('a', '1', {path: '/'});
* cookie.get('a'); // -> '1'
* cookie.remove('a');
* ```
*/
/* module
* env: browser
* test: browser
*/
/* dependencies
* defaults isNum isUndef decodeUriComponent
*/
var defOpts = { path: '/' };
function setCookie(key, val, options) {
if (!isUndef(val)) {
options = options || {};
options = defaults(options, defOpts);
if (isNum(options.expires)) {
var expires = new Date();
expires.setMilliseconds(
expires.getMilliseconds() + options.expires * 864e5
);
options.expires = expires;
}
val = encodeURIComponent(val);
key = encodeURIComponent(key);
document.cookie = [
key,
'=',
val,
options.expires && '; expires=' + options.expires.toUTCString(),
options.path && '; path=' + options.path,
options.domain && '; domain=' + options.domain,
options.secure ? '; secure' : ''
].join('');
return exports;
}
var cookies = document.cookie ? document.cookie.split('; ') : [],
result = key ? undefined : {};
for (var i = 0, len = cookies.length; i < len; i++) {
var c = cookies[i],
parts = c.split('='),
name = decodeUriComponent(parts.shift());
c = parts.join('=');
c = decodeUriComponent(c);
if (key === name) {
result = c;
break;
}
if (!key) result[name] = c;
}
return result;
}
exports = {
get: setCookie,
set: setCookie,
remove: function(key, options) {
options = options || {};
options.expires = -1;
return setCookie(key, '', options);
}
};
return exports;
})({});
/* ------------------------------ rtrim ------------------------------ */
var rtrim = _.rtrim = (function () {
/* Remove chars or white-spaces from end of string.
*
* |Name |Type |Desc |
* |------|------------|------------------|
* |str |string |String to trim |
* |chars |string array|Characters to trim|
* |return|string |Trimmed string |
*
* ```javascript
* rtrim(' abc '); // -> ' abc'
* rtrim('_abc_', '_'); // -> '_abc'
* rtrim('_abc_', ['c', '_']); // -> '_ab'
* ```
*/
/* module
* env: all
* test: all
*/
var regSpace = /\s+$/;
function exports(str, chars) {
if (chars == null) return str.replace(regSpace, '');
var end = str.length - 1,
charLen = chars.length,
found = true,
i,
c;
while (found && end >= 0) {
found = false;
i = -1;
c = str.charAt(end);
while (++i < charLen) {
if (c === chars[i]) {
found = true;
end--;
break;
}
}
}
return end >= 0 ? str.substring(0, end + 1) : '';
}
return exports;
})();
/* ------------------------------ trim ------------------------------ */
var trim = _.trim = (function () {
/* Remove chars or white-spaces from beginning end of string.
*
* |Name |Type |Desc |
* |------|------------|------------------|
* |str |string |String to trim |
* |chars |string array|Characters to trim|
* |return|string |Trimmed string |
*
* ```javascript
* trim(' abc '); // -> 'abc'
* trim('_abc_', '_'); // -> 'abc'
* trim('_abc_', ['a', 'c', '_']); // -> 'b'
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* ltrim rtrim
*/
var regSpace = /^\s+|\s+$/g;
function exports(str, chars) {
if (chars == null) return str.replace(regSpace, '');
return ltrim(rtrim(str, chars), chars);
}
return exports;
})();
/* ------------------------------ query ------------------------------ */
var query = _.query = (function (exports) {
/* Parse and stringify url query strings.
*
* ### parse
*
* Parse a query string into an object.
*
* |Name |Type |Desc |
* |------|------|------------|
* |str |string|Query string|
* |return|object|Query object|
*
* ### stringify
*
* Stringify an object into a query string.
*
* |Name |Type |Desc |
* |------|------|------------|
* |obj |object|Query object|
* |return|string|Query string|
*
* ```javascript
* query.parse('foo=bar&eruda=true'); // -> {foo: 'bar', eruda: 'true'}
* query.stringify({foo: 'bar', eruda: 'true'}); // -> 'foo=bar&eruda=true'
* query.parse('name=eruda&name=eustia'); // -> {name: ['eruda', 'eustia']}
* ```
*/
/* module
* env: all
* test: all
*/
/* dependencies
* trim each isUndef isArr map isEmpty filter isObj
*/
exports = {
parse: function(str) {
var ret = {};
str = trim(str).replace(regIllegalChars, '');
each(str.split('&'), function(param) {
var parts = param.split('=');
var key = parts.shift(),
val = parts.length > 0 ? parts.join('=') : null;
key = decodeURIComponent(key);
val = decodeURIComponent(val);
if (isUndef(ret[key])) {
ret[key] = val;
} else if (isArr(ret[key])) {
ret[key].push(val);
} else {
ret[key] = [ret[key], val];
}
});
return ret;
},
stringify: function(obj, arrKey) {
return filter(
map(obj, function(val, key) {
if (isObj(val) && isEmpty(val)) return '';
if (isArr(val)) return exports.stringify(val, key);
return (
(arrKey
? encodeURIComponent(arrKey)
: encodeURIComponent(key)) +
'=' +
encodeURIComponent(val)
);
}),
function(str) {
return str.length > 0;
}
).join('&');
}
};
var regIllegalChars = /^(\?|#|&)/g;
return exports;
})({});
/* ------------------------------ ajax ------------------------------ */
_.ajax = (function () {
/* Perform an asynchronous HTTP request.
*
* |Name |Type |Desc |
* |-------|------|------------|
* |options|object|Ajax options|
*
* Available options:
*
* |Name |Type |Desc |
* |---------------------------------------------|-------------|---------------------------|
* |url |string |Request url |
* |data |string object|Request data |
* |dataType=json |string |Response type(json, xml) |
* |contentType=application/x-www-form-urlencoded|string |Request header Content-Type|
* |success |function |Success callback |
* |error |function |Error callback |
* |complete |function |Callback after request |
* |timeout |number |Request timeout |
*
* ### get
*
* Shortcut for type = GET;
*
* ### post
*
* Shortcut for type = POST;
*
* |Name |Type |Desc |
* |--------|-------------|----------------|
* |url |string |Request url |
* |[data] |string object|Request data |
* |success |function |Success callback|
* |dataType|function |Response type |
*
* ```javascript
* ajax({
* url: 'http://example.com',
* data: {test: 'true'},
* error: function () {},
* success: function (data)
* {
* // ...
* },
* dataType: 'json'
* });
*
* ajax.get('http://example.com', {}, function (data)
* {
* // ...
* });
* ```
*/
/* module
* env: browser
* test: manual
*/
/* dependencies
* isFn noop defaults isObj query
*/
function exports(options) {
defaults(options, exports.setting);
var type = options.type,
url = options.url,
data = options.data,
dataType = options.dataType,
success = options.success,
error = options.error,
timeout = options.timeout,
complete = options.complete,
xhr = options.xhr(),
abortTimeout;
xhr.onreadystatechange = function() {
if (xhr.readyState !== 4) return;
clearTimeout(abortTimeout);
var result;
var status = xhr.status;
if ((status >= 200 && status < 300) || status === 304) {
result = xhr.responseText;
if (dataType === 'xml') result = xhr.responseXML;
try {
if (dataType === 'json') result = JSON.parse(result);
/* eslint-disable no-empty */
} catch (e) {}
success(result, xhr);
} else {
error(xhr);
}
complete(xhr);
};
if (type === 'GET') {
data = query.stringify(data);
url += url.indexOf('?') > -1 ? '&' + data : '?' + data;
} else if (options.contentType === 'application/x-www-form-urlencoded') {
if (isObj(data)) data = query.stringify(data);
} else if (options.contentType === 'application/json') {
if (isObj(data)) data = JSON.stringify(data);
}
xhr.open(type, url, true);
xhr.setRequestHeader('Content-Type', options.contentType);
if (timeout > 0) {
abortTimeout = setTimeout(function() {
xhr.onreadystatechange = noop;
xhr.abort();
error(xhr, 'timeout');
complete(xhr);
}, timeout);
}
xhr.send(type === 'GET' ? null : data);
return xhr;
}
exports.setting = {
type: 'GET',
success: noop,
error: noop,
complete: noop,
dataType: 'json',
contentType: 'application/x-www-form-urlencoded',
data: {},
xhr: function() {
return new XMLHttpRequest();
},
timeout: 0
};
exports.get = function() {
return exports(parseArgs.apply(null, arguments));
};
exports.post = function() {
var options = parseArgs.apply(null, arguments);
options.type = 'POST';
return exports(options);
};
function parseArgs(url, data, success, dataType) {
if (isFn(data)) {
dataType = success;
success = data;
data = {};
}
return {
url: url,
data: data,
success: success,
dataType: dataType
};
}
return exports;
})();
return _;
}));