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/*
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 *  This file is part of CoCalc: Copyright © 2020 Sagemath, Inc.
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 *  License: MS-RSL – see LICENSE.md for details
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 */
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/*
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 * license
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 */
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import { replace_all } from "./misc";
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const escape_map = "$";
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// We used to do this since we wanted to support math delineated by \[ ... \];
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// however, that just conflicts too much with markdown itself and Jupyter classic
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// doesn't do it.  Use $ only.
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//const escape_map = "$()[]";
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const unescape_map =
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  "\uFE22\uFE23\uFE24\uFE25\uFE26"; /* we just use some unallocated unicode... */
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export function math_escape(s: string): string {
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  for (let i = 0; i < escape_map.length; i++) {
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    s = replace_all(s, "\\" + escape_map[i], unescape_map[i]);
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  }
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  return s;
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}
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export function math_unescape(s: string): string {
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  for (let i = 0; i < escape_map.length; i++) {
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    s = replace_all(s, unescape_map[i], "\\" + escape_map[i]);
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  }
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  return s;
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}
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