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/*jshint -W004 */
import SafeString from "./safe-string";
var escape = {
"&": "&",
"<": "<",
">": ">",
'"': """,
"'": "'",
"`": "`"
};
var badChars = /[&<>"'`]/g;
var possible = /[&<>"'`]/;
function escapeChar(chr) {
return escape[chr] || "&";
}
export function extend(obj, value) {
for(var key in value) {
if(Object.prototype.hasOwnProperty.call(value, key)) {
obj[key] = value[key];
}
}
}
export var toString = Object.prototype.toString;
// Sourced from lodash
// https://github.com/bestiejs/lodash/blob/master/LICENSE.txt
var isFunction = function(value) {
return typeof value === 'function';
};
// fallback for older versions of Chrome and Safari
if (isFunction(/x/)) {
isFunction = function(value) {
return typeof value === 'function' && toString.call(value) === '[object Function]';
};
}
export var isFunction;
export var isArray = Array.isArray || function(value) {
return (value && typeof value === 'object') ? toString.call(value) === '[object Array]' : false;
};
export function escapeExpression(string) {
// don't escape SafeStrings, since they're already safe
if (string instanceof SafeString) {
return string.toString();
} else if (!string && string !== 0) {
return "";
}
// Force a string conversion as this will be done by the append regardless and
// the regex test will do this transparently behind the scenes, causing issues if
// an object's to string has escaped characters in it.
string = "" + string;
if(!possible.test(string)) { return string; }
return string.replace(badChars, escapeChar);
}
export function isEmpty(value) {
if (!value && value !== 0) {
return true;
} else if (isArray(value) && value.length === 0) {
return true;
} else {
return false;
}
}
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