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Reimplement MD045/no-alt-text using micromark tokens, add range information.

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David Anson 2023-07-28 20:19:30 -07:00
parent 3dedc1cda1
commit e8cc7eb3cb
6 changed files with 98 additions and 19 deletions
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30
demo/markdownlint-browser.js
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@ -5834,19 +5834,37 @@ module.exports = {
function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
var _require = __webpack_require__(/*! ../helpers */ "../helpers/helpers.js"),
addError = _require.addError,
forEachInlineChild = _require.forEachInlineChild;
addError = _require.addError;
var _require2 = __webpack_require__(/*! ../helpers/micromark.cjs */ "../helpers/micromark.cjs"),
filterByTypes = _require2.filterByTypes;
module.exports = {
"names": ["MD045", "no-alt-text"],
"description": "Images should have alternate text (alt text)",
"tags": ["accessibility", "images"],
"function": function MD045(params, onError) {
forEachInlineChild(params, "image", function forToken(token) {
if (token.content === "") {
addError(onError, token.lineNumber);
var images = filterByTypes(params.parsers.micromark.tokens, ["image"]);
var _iterator = _createForOfIteratorHelper(images),
_step;
try {
for (_iterator.s(); !(_step = _iterator.n()).done;) {
var image = _step.value;
var labelTexts = filterByTypes(image.children, ["labelText"]);
if (labelTexts.some(function (labelText) {
return labelText.text.length === 0;
})) {
var range = image.startLine === image.endLine ? [image.startColumn, image.endColumn - image.startColumn] : undefined;
addError(onError, image.startLine, undefined, undefined, range);
}
}
});
} catch (err) {
_iterator.e(err);
} finally {
_iterator.f();
}
}
};