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util.ts
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util.ts
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import { assertEquals } from "./deps.ts";
export function vimoption2ts(option: string): string {
let hasDash = false;
const patterns: string[] = [];
for (let pattern of option.split(",")) {
if (pattern.match(/\d+/)) {
pattern = pattern.replaceAll(/\d+/g, (s: string) => {
return String.fromCharCode(parseInt(s, 10));
});
}
switch (pattern) {
case "":
// ,
if (patterns.indexOf(",") < 0) {
patterns.push(",");
}
break;
case "@":
patterns.push("a-zA-Z");
break;
case "\\":
patterns.push("\\\\");
break;
case "-":
hasDash = true;
break;
default:
patterns.push(pattern);
break;
}
}
// Dash must be last.
if (hasDash) {
patterns.push("-");
}
return patterns.join("");
}
Deno.test("vimoption2ts", () => {
assertEquals(vimoption2ts("@,48-57,_,\\"), "a-zA-Z0-9_\\\\");
assertEquals(vimoption2ts("@,-,48-57,_"), "a-zA-Z0-9_-");
assertEquals(vimoption2ts("@,,,48-57,_"), "a-zA-Z,0-9_");
assertEquals(vimoption2ts("@,48-57,_,-,+,\\,!~"), "a-zA-Z0-9_+\\\\!~-");
});