78 lines
3.0 KiB
JavaScript
78 lines
3.0 KiB
JavaScript
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import { DocNode, DocNodeKind } from '../nodes';
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/**
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* Renders a DocNode tree as plain text, without any rich text formatting or markup.
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*/
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var PlainTextEmitter = /** @class */ (function () {
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function PlainTextEmitter() {
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}
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PlainTextEmitter.hasAnyTextContent = function (nodeOrNodes, requiredCharacters) {
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if (requiredCharacters === undefined || requiredCharacters < 1) {
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requiredCharacters = 1; // default
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}
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var nodes;
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if (nodeOrNodes instanceof DocNode) {
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nodes = [nodeOrNodes];
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}
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else {
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nodes = nodeOrNodes;
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}
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var foundCharacters = PlainTextEmitter._scanTextContent(nodes, requiredCharacters, 0);
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return foundCharacters >= requiredCharacters;
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};
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PlainTextEmitter._scanTextContent = function (nodes, requiredCharacters, foundCharacters) {
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for (var _i = 0, nodes_1 = nodes; _i < nodes_1.length; _i++) {
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var node = nodes_1[_i];
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switch (node.kind) {
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case DocNodeKind.FencedCode:
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var docFencedCode = node;
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foundCharacters += PlainTextEmitter._countNonSpaceCharacters(docFencedCode.code);
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break;
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case DocNodeKind.CodeSpan:
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var docCodeSpan = node;
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foundCharacters += PlainTextEmitter._countNonSpaceCharacters(docCodeSpan.code);
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break;
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case DocNodeKind.EscapedText:
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var docEscapedText = node;
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foundCharacters += PlainTextEmitter._countNonSpaceCharacters(docEscapedText.decodedText);
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break;
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case DocNodeKind.LinkTag:
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var docLinkTag = node;
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foundCharacters += PlainTextEmitter._countNonSpaceCharacters(docLinkTag.linkText || '');
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break;
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case DocNodeKind.PlainText:
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var docPlainText = node;
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foundCharacters += PlainTextEmitter._countNonSpaceCharacters(docPlainText.text);
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break;
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}
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if (foundCharacters >= requiredCharacters) {
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break;
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}
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foundCharacters += PlainTextEmitter._scanTextContent(node.getChildNodes(), requiredCharacters, foundCharacters);
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if (foundCharacters >= requiredCharacters) {
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break;
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}
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}
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return foundCharacters;
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};
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PlainTextEmitter._countNonSpaceCharacters = function (s) {
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var count = 0;
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var length = s.length;
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var i = 0;
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while (i < length) {
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switch (s.charCodeAt(i)) {
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case 32: // space
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case 9: // tab
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case 13: // CR
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case 10: // LF
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break;
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default:
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++count;
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}
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++i;
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}
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return count;
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};
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return PlainTextEmitter;
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}());
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export { PlainTextEmitter };
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//# sourceMappingURL=PlainTextEmitter.js.map
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