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| const base64UrlDecodeChars = {'-': '+', '_': '/', '.': '='}; | ||
| const base64UrlDecode = input => { | ||
| try { | ||
| return atob(input.replace(/[-_.]/g, c => base64UrlDecodeChars[c])); | ||
| } catch { | ||
| return null; | ||
| } | ||
| } | ||
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| const base64UrlEncodeChars = {'+': '-', '/': '_', '=': '.'}; | ||
| const base64UrlEncode = input => { | ||
| try { | ||
| return btoa(input).replace(/[+/=]/g, c => base64UrlEncodeChars[c]); | ||
| } catch { | ||
| return null; | ||
| } | ||
| } |
| // Quote property names | ||
| opts = opts.replace(/^\s*(\w+):/gm, '"$1":'); | ||
| return JSON.parse(opts); | ||
| } |
Contributor
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I see why this is something we need to do (avoiding a self xss and whatnot), however there are some Terser options that are regexps. For instance you can use /^_/ to select properties started with _ to mangle :/
There are a few options that take functions too (which would be a nightmare) so I'm not mentioning that part.
Contributor
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I think it's possible to avoid this by disabling sharing for options that include RegExps and functions. Then you can do eval freely, and only do JSON.parse in loadState
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This saves and loads the current REPL state into the hash fragment, allow simple sharing. I've wanted this a few times when trying to demo different compression options.