25 lines
839 B
TypeScript
25 lines
839 B
TypeScript
|
import { PostprocessFilter, PostprocessContext } from "./base";
|
||
|
|
import { splitLines, isBlank } from "../utils";
|
||
|
|
|
||
|
|
export const trimSpace: (context: PostprocessContext) => PostprocessFilter = (context) => {
|
||
|
|
return (input) => {
|
||
|
|
const { prefixLines, suffixLines } = context;
|
||
|
|
const inputLines = splitLines(input);
|
||
|
|
let trimmedInput = input;
|
||
|
|
const prefixCurrentLine = prefixLines[prefixLines.length - 1] ?? "";
|
||
|
|
const suffixCurrentLine = suffixLines[0] ?? "";
|
||
|
|
if (!isBlank(prefixCurrentLine) && prefixCurrentLine.match(/\s$/)) {
|
||
|
|
trimmedInput = trimmedInput.trimStart();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (
|
||
|
|
inputLines.length > 1 ||
|
||
|
|
isBlank(suffixCurrentLine) ||
|
||
|
|
(!isBlank(suffixCurrentLine) && suffixCurrentLine.match(/^\s/))
|
||
|
|
) {
|
||
|
|
trimmedInput = trimmedInput.trimEnd();
|
||
|
|
}
|
||
|
|
return trimmedInput;
|
||
|
|
};
|
||
|
|
};
|