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regex-subset-to-glob

Convert a minimal subset of regex to glob.

regex-subset-to-glob supports:

  • .* to *
  • . to ?
  • [abc] and [a-z] (.* / . in brackets won’t be touched)

Note that regex escaping (\) is not supported for now.

Additionally, regex-subset-to-glob-OR (this script) supports regex OR by splitting the patterns into different strings:

"a|b|c" to ["a", "b", "c"]

But, regex matching groups is not supported, so "(a|b|c)" will become ["(a", "b", "c)"];

Also, "a|b|c" to Extended globbing "@(a|b|c)" is not supported.

Methods

regexSubsetToGlob(regexStr: String): String
Takes a regular expression String, returns a glob pattern.
regexSubsetToGlobOR(regexStr): [String, ...]
Takes a regular expression String, returns an Array of glob pattern(s).

Example

import regexSubsetToGlob   from "./regex-subset-to-glob.js";
import regexSubsetToGlobOR from "./regex-subset-to-glob-OR.js";

(regexSubsetToGlob(".*-[to][o-t]-....") + ".js") === "*-[to][o-t]-????.js";

regexSubsetToGlob("test\\.js") === "test\\?js"; // `\` is not supported for now

regexSubsetToGlob("LICENSE|[A|B]") === "LICENSE|[A|B]";
regexSubsetToGlobOR("LICENSE|[A|B]").join(" & ") === "LICENSE & [A|B]";