stringify.js
2.59 KB
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"use strict";
var __spreadArrays = (this && this.__spreadArrays) || function () {
for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;
for (var r = Array(s), k = 0, i = 0; i < il; i++)
for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)
r[k] = a[j];
return r;
};
Object.defineProperty(exports, "__esModule", { value: true });
var actionTypes = {
equals: "",
element: "~",
start: "^",
end: "$",
any: "*",
not: "!",
hyphen: "|",
};
var charsToEscape = new Set(__spreadArrays(Object.keys(actionTypes)
.map(function (typeKey) { return actionTypes[typeKey]; })
.filter(Boolean), [
":",
"[",
"]",
" ",
"\\",
]));
function stringify(token) {
return token.map(stringifySubselector).join(", ");
}
exports.default = stringify;
function stringifySubselector(token) {
return token.map(stringifyToken).join("");
}
function stringifyToken(token) {
switch (token.type) {
// Simple types
case "child":
return " > ";
case "parent":
return " < ";
case "sibling":
return " ~ ";
case "adjacent":
return " + ";
case "descendant":
return " ";
case "universal":
return "*";
case "tag":
return escapeName(token.name);
case "pseudo-element":
return "::" + escapeName(token.name);
case "pseudo":
if (token.data === null)
return ":" + escapeName(token.name);
if (typeof token.data === "string") {
return ":" + escapeName(token.name) + "(" + token.data + ")";
}
return ":" + escapeName(token.name) + "(" + stringify(token.data) + ")";
case "attribute":
if (token.action === "exists") {
return "[" + escapeName(token.name) + "]";
}
if (token.name === "id" &&
token.action === "equals" &&
!token.ignoreCase) {
return "#" + escapeName(token.value);
}
if (token.name === "class" &&
token.action === "element" &&
!token.ignoreCase) {
return "." + escapeName(token.value);
}
return "[" + escapeName(token.name) + actionTypes[token.action] + "='" + escapeName(token.value) + "'" + (token.ignoreCase ? "i" : "") + "]";
}
}
function escapeName(str) {
return str
.split("")
.map(function (c) { return (charsToEscape.has(c) ? "\\" + c : c); })
.join("");
}