52 lines
1.9 KiB
TypeScript
52 lines
1.9 KiB
TypeScript
import { MarkdownPostProcessor, MarkdownPostProcessorContext, MarkdownPreviewRenderer, Plugin } from 'obsidian';
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export default class AutoTypographyPlugin extends Plugin {
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static postprocessor: MarkdownPostProcessor = (el: HTMLElement, ctx: MarkdownPostProcessorContext) => {
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const treeWalker = el.ownerDocument.createTreeWalker(el, NodeFilter.SHOW_TEXT);
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let currentNode;
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// Go through all text nodes in the rendered HTML
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while ((currentNode = treeWalker.nextNode())) {
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let t = currentNode.textContent!;
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// convert triple hyphens to em-dash
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t = t.replace(/---/g, "\u2014");
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// convert double hyphens to en-dash
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t = t.replace(/--/g, "\u2013");
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// convert triple periods to horizontal ellipsis
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t = t.replace(/\.\.\./g, "\u2026");
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// convert apostrophe in the middle of a word to right single quotation mark
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t = t.replace(/(?<=\w)'(?=\w)/gu, "\u2019");
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// convert double quote at the end of a word to right double quotation mark
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t = t.replace(/(?<=(\w|\p{P}))"/gu, "\u201d");
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// convert single quote at the end of a word to right single quotation mark
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t = t.replace(/(?<=(\w|\p{P}))'/gu, "\u2019");
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// convert double quote at the beginning of a word to left double quotation mark
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t = t.replace(/"(?=(\w|\p{P}))/gu, "\u201c");
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// convert single quote at the beginning of a word to left single quotation mark
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t = t.replace(/'(?=(\w|\p{P}))/gu, "\u2018");
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if (currentNode.textContent != t) {
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currentNode.textContent = t;
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}
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}
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}
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async onload() {
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MarkdownPreviewRenderer.registerPostProcessor(AutoTypographyPlugin.postprocessor);
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}
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async onunload() {
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MarkdownPreviewRenderer.unregisterPostProcessor(AutoTypographyPlugin.postprocessor);
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}
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}
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