You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
190 lines
5.8 KiB
190 lines
5.8 KiB
var falseFunc = require("boolbase").falseFunc;
|
|
|
|
//https://github.com/slevithan/XRegExp/blob/master/src/xregexp.js#L469
|
|
var reChars = /[-[\]{}()*+?.,\\^$|#\s]/g;
|
|
|
|
/*
|
|
attribute selectors
|
|
*/
|
|
var attributeRules = {
|
|
__proto__: null,
|
|
equals: function(next, data, options) {
|
|
var name = data.name;
|
|
var value = data.value;
|
|
var adapter = options.adapter;
|
|
|
|
if (data.ignoreCase) {
|
|
value = value.toLowerCase();
|
|
|
|
return function equalsIC(elem) {
|
|
var attr = adapter.getAttributeValue(elem, name);
|
|
return attr != null && attr.toLowerCase() === value && next(elem);
|
|
};
|
|
}
|
|
|
|
return function equals(elem) {
|
|
return adapter.getAttributeValue(elem, name) === value && next(elem);
|
|
};
|
|
},
|
|
hyphen: function(next, data, options) {
|
|
var name = data.name;
|
|
var value = data.value;
|
|
var len = value.length;
|
|
var adapter = options.adapter;
|
|
|
|
if (data.ignoreCase) {
|
|
value = value.toLowerCase();
|
|
|
|
return function hyphenIC(elem) {
|
|
var attr = adapter.getAttributeValue(elem, name);
|
|
return (
|
|
attr != null &&
|
|
(attr.length === len || attr.charAt(len) === "-") &&
|
|
attr.substr(0, len).toLowerCase() === value &&
|
|
next(elem)
|
|
);
|
|
};
|
|
}
|
|
|
|
return function hyphen(elem) {
|
|
var attr = adapter.getAttributeValue(elem, name);
|
|
return (
|
|
attr != null &&
|
|
attr.substr(0, len) === value &&
|
|
(attr.length === len || attr.charAt(len) === "-") &&
|
|
next(elem)
|
|
);
|
|
};
|
|
},
|
|
element: function(next, data, options) {
|
|
var name = data.name;
|
|
var value = data.value;
|
|
var adapter = options.adapter;
|
|
|
|
if (/\s/.test(value)) {
|
|
return falseFunc;
|
|
}
|
|
|
|
value = value.replace(reChars, "\\$&");
|
|
|
|
var pattern = "(?:^|\\s)" + value + "(?:$|\\s)",
|
|
flags = data.ignoreCase ? "i" : "",
|
|
regex = new RegExp(pattern, flags);
|
|
|
|
return function element(elem) {
|
|
var attr = adapter.getAttributeValue(elem, name);
|
|
return attr != null && regex.test(attr) && next(elem);
|
|
};
|
|
},
|
|
exists: function(next, data, options) {
|
|
var name = data.name;
|
|
var adapter = options.adapter;
|
|
|
|
return function exists(elem) {
|
|
return adapter.hasAttrib(elem, name) && next(elem);
|
|
};
|
|
},
|
|
start: function(next, data, options) {
|
|
var name = data.name;
|
|
var value = data.value;
|
|
var len = value.length;
|
|
var adapter = options.adapter;
|
|
|
|
if (len === 0) {
|
|
return falseFunc;
|
|
}
|
|
|
|
if (data.ignoreCase) {
|
|
value = value.toLowerCase();
|
|
|
|
return function startIC(elem) {
|
|
var attr = adapter.getAttributeValue(elem, name);
|
|
return attr != null && attr.substr(0, len).toLowerCase() === value && next(elem);
|
|
};
|
|
}
|
|
|
|
return function start(elem) {
|
|
var attr = adapter.getAttributeValue(elem, name);
|
|
return attr != null && attr.substr(0, len) === value && next(elem);
|
|
};
|
|
},
|
|
end: function(next, data, options) {
|
|
var name = data.name;
|
|
var value = data.value;
|
|
var len = -value.length;
|
|
var adapter = options.adapter;
|
|
|
|
if (len === 0) {
|
|
return falseFunc;
|
|
}
|
|
|
|
if (data.ignoreCase) {
|
|
value = value.toLowerCase();
|
|
|
|
return function endIC(elem) {
|
|
var attr = adapter.getAttributeValue(elem, name);
|
|
return attr != null && attr.substr(len).toLowerCase() === value && next(elem);
|
|
};
|
|
}
|
|
|
|
return function end(elem) {
|
|
var attr = adapter.getAttributeValue(elem, name);
|
|
return attr != null && attr.substr(len) === value && next(elem);
|
|
};
|
|
},
|
|
any: function(next, data, options) {
|
|
var name = data.name;
|
|
var value = data.value;
|
|
var adapter = options.adapter;
|
|
|
|
if (value === "") {
|
|
return falseFunc;
|
|
}
|
|
|
|
if (data.ignoreCase) {
|
|
var regex = new RegExp(value.replace(reChars, "\\$&"), "i");
|
|
|
|
return function anyIC(elem) {
|
|
var attr = adapter.getAttributeValue(elem, name);
|
|
return attr != null && regex.test(attr) && next(elem);
|
|
};
|
|
}
|
|
|
|
return function any(elem) {
|
|
var attr = adapter.getAttributeValue(elem, name);
|
|
return attr != null && attr.indexOf(value) >= 0 && next(elem);
|
|
};
|
|
},
|
|
not: function(next, data, options) {
|
|
var name = data.name;
|
|
var value = data.value;
|
|
var adapter = options.adapter;
|
|
|
|
if (value === "") {
|
|
return function notEmpty(elem) {
|
|
return !!adapter.getAttributeValue(elem, name) && next(elem);
|
|
};
|
|
} else if (data.ignoreCase) {
|
|
value = value.toLowerCase();
|
|
|
|
return function notIC(elem) {
|
|
var attr = adapter.getAttributeValue(elem, name);
|
|
return attr != null && attr.toLowerCase() !== value && next(elem);
|
|
};
|
|
}
|
|
|
|
return function not(elem) {
|
|
return adapter.getAttributeValue(elem, name) !== value && next(elem);
|
|
};
|
|
}
|
|
};
|
|
|
|
module.exports = {
|
|
compile: function(next, data, options) {
|
|
if (options && options.strict && (data.ignoreCase || data.action === "not")) {
|
|
throw new Error("Unsupported attribute selector");
|
|
}
|
|
return attributeRules[data.action](next, data, options);
|
|
},
|
|
rules: attributeRules
|
|
};
|