41 lines
1.1 KiB
JavaScript
41 lines
1.1 KiB
JavaScript
const getFullSource = (element) => {
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const commentNode = element.ownerDocument.body.lastChild;
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if (commentNode.nodeName === '#comment') {
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return commentNode.textContent.split('\n');
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}
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return [];
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};
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const getRangeFromSourcePos = (sourcePos) => {
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const [start, end] = sourcePos.split('-');
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const [startRow, startCol] = start.split(':');
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const [endRow, endCol] = end.split(':');
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return {
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start: { row: Number(startRow) - 1, col: Number(startCol) - 1 },
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end: { row: Number(endRow) - 1, col: Number(endCol) - 1 },
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};
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};
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export const getMarkdownSource = (element) => {
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if (!element.dataset.sourcepos) return undefined;
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const source = getFullSource(element);
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const range = getRangeFromSourcePos(element.dataset.sourcepos);
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let elSource = '';
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for (let i = range.start.row; i <= range.end.row; i += 1) {
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if (i === range.start.row) {
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elSource += source[i]?.substring(range.start.col);
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} else if (i === range.end.row) {
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elSource += `\n${source[i]?.substring(0, range.start.col)}`;
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} else {
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elSource += `\n${source[i]}` || '';
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}
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}
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return elSource.trim();
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};
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