77 lines
2.0 KiB
TypeScript
77 lines
2.0 KiB
TypeScript
import { taskListItems, strikethrough } from "@joplin/turndown-plugin-gfm";
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import TurndownService from "turndown";
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import breaks from "./breaks";
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import emptyLists from "./emptyLists";
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import emptyParagraph from "./emptyParagraph";
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import frames from "./frames";
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import images from "./images";
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import inlineLink from "./inlineLink";
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import sanitizeLists from "./sanitizeLists";
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import sanitizeTables from "./sanitizeTables";
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import tables from "./tables";
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import underlines from "./underlines";
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import { inHtmlContext } from "./utils";
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/**
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* Turndown converts HTML to Markdown and is used in the importer code.
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*
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* For options, see: https://github.com/domchristie/turndown#options
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*/
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const service = new TurndownService({
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hr: "---",
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bulletListMarker: "-",
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headingStyle: "atx",
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codeBlockStyle: "fenced",
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blankReplacement: (_, node) =>
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node.nodeName === "P" && !inHtmlContext(node as HTMLElement, "td, th")
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? "\n\n\\\n"
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: "",
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})
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.remove(["script", "style", "title", "head"])
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.use(taskListItems)
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.use(strikethrough)
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.use(tables)
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.use(inlineLink)
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.use(emptyParagraph)
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.use(sanitizeTables)
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.use(sanitizeLists)
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.use(underlines)
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.use(frames)
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.use(images)
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.use(breaks)
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.use(emptyLists);
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const escapes: [RegExp, string][] = [
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[/\\/g, "\\\\"],
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[/\*/g, "\\*"],
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[/^-/g, "\\-"],
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[/^\+ /g, "\\+ "],
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[/^(=+)/g, "\\$1"],
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[/^(#{1,6}) /g, "\\$1 "],
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[/`/g, "\\`"],
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[/^~~~/g, "\\~~~"],
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[/\[/g, "\\["],
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[/\]/g, "\\]"],
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[/\(/g, "\\("], // OLN-91
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[/\)/g, "\\)"], // OLN-91
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[/^>/g, "\\>"],
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[/_/g, "\\_"],
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[/^(\d+)\. /g, "$1\\. "],
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[/\$/g, "\\$"],
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];
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/**
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* Overrides the Markdown escaping, as documented here:
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* https://github.com/mixmark-io/turndown/blob/4499b5c313d30a3189a58fdd74fc4ed4b2428afd/README.md#overriding-turndownserviceprototypeescape
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*
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* @param text The string to escape
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* @returns A string with Markdown syntax escaped
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*/
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service.escape = function (text) {
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return escapes.reduce(function (accumulator, escape) {
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return accumulator.replace(escape[0], escape[1]);
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}, text);
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};
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export default service;
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