Function windows

Extension/src/Utility/Process/commandLine.ts:10–81

(argsString: string)

import { resolveEnvironmentVariables } from '../System/environment';

function windows(argsString: string): string[] {
    argsString = resolveEnvironmentVariables(argsString);
    const result: string[] = [];
    let currentArg: string = "";
    let isInQuote: boolean = false;
    let wasInQuote: boolean = false;
    let i: number = 0;
    while (i < argsString.length) {
        let c: string = argsString[i];
        if (c === '\"') {
            if (!isInQuote) {
                isInQuote = true;
                wasInQuote = true;
                ++i;
                continue;
            }
            // Need to peek at next character.
            if (++i === argsString.length) {
                break;
            }
            c = argsString[i];
            if (c !== '\"') {
                isInQuote = false;
            }
            // Fall through. If c was a quote character, it will be added as a literal.
        }
        if (c === '\\') {
            let backslashCount: number = 1;
            let reachedEnd: boolean = true;
            while (++i !== argsString.length) {
                c = argsString[i];
                if (c !== '\\') {
                    reachedEnd = false;
                    break;
                }
                ++backslashCount;
            }
            const still_escaping: boolean = (backslashCount % 2) !== 0;
            if (!reachedEnd && c === '\"') {
                backslashCount = Math.floor(backslashCount / 2);
            }
            while (backslashCount--) {
                currentArg += '\\';
            }
            if (reachedEnd) {
                break;
            }
            // If not still escaping and a quote was found, it needs to be handled above.
            if (!still_escaping && c === '\"') {
                continue;
            }
            // Otherwise, fall through to handle c as a literal.
        }
        if (c === ' ' || c === '\t' || c === '\r' || c === '\n') {
            if (!isInQuote) {
                if (currentArg !== "" || wasInQuote) {
                    wasInQuote = false;
                    result.push(currentArg);