Santhosh Janardhanan
de2d83092e
- Delete old Vite+Svelte frontend - Initialize new SvelteKit project with TypeScript - Configure Tailwind CSS v4 + DaisyUI - Implement JWT authentication with auto-refresh - Create login page with form validation (Zod) - Add protected route guards - Update Docker configuration for single-stage build - Add E2E tests with Playwright (6/11 passing) - Fix Svelte 5 reactivity with $state() runes Known issues: - 5 E2E tests failing (timing/async issues) - Token refresh implementation needs debugging - Validation error display timing
88 lines
2.5 KiB
JavaScript
88 lines
2.5 KiB
JavaScript
import { Backslash, whitespaceChars } from "./strings.js";
|
|
export class Scanner {
|
|
chars;
|
|
i;
|
|
def;
|
|
constructor(def) {
|
|
this.def = def;
|
|
this.chars = [...def];
|
|
this.i = 0;
|
|
}
|
|
/** Get lookahead and advance scanner by one */
|
|
shift() {
|
|
return (this.chars[this.i++] ?? "");
|
|
}
|
|
get lookahead() {
|
|
return (this.chars[this.i] ?? "");
|
|
}
|
|
get nextLookahead() {
|
|
return this.chars[this.i + 1] ?? "";
|
|
}
|
|
get length() {
|
|
return this.chars.length;
|
|
}
|
|
shiftUntil(condition) {
|
|
let shifted = "";
|
|
while (this.lookahead) {
|
|
if (condition(this, shifted))
|
|
break;
|
|
else
|
|
shifted += this.shift();
|
|
}
|
|
return shifted;
|
|
}
|
|
shiftUntilEscapable(condition) {
|
|
let shifted = "";
|
|
while (this.lookahead) {
|
|
if (this.lookahead === Backslash) {
|
|
this.shift();
|
|
if (condition(this, shifted))
|
|
shifted += this.shift();
|
|
else if (this.lookahead === Backslash)
|
|
shifted += this.shift();
|
|
else
|
|
shifted += `${Backslash}${this.shift()}`;
|
|
}
|
|
else if (condition(this, shifted))
|
|
break;
|
|
else
|
|
shifted += this.shift();
|
|
}
|
|
return shifted;
|
|
}
|
|
shiftUntilLookahead(charOrSet) {
|
|
return typeof charOrSet === "string" ?
|
|
this.shiftUntil(s => s.lookahead === charOrSet)
|
|
: this.shiftUntil(s => s.lookahead in charOrSet);
|
|
}
|
|
shiftUntilNonWhitespace() {
|
|
return this.shiftUntil(() => !(this.lookahead in whitespaceChars));
|
|
}
|
|
jumpToIndex(i) {
|
|
this.i = i < 0 ? this.length + i : i;
|
|
}
|
|
jumpForward(count) {
|
|
this.i += count;
|
|
}
|
|
get location() {
|
|
return this.i;
|
|
}
|
|
get unscanned() {
|
|
return this.chars.slice(this.i, this.length).join("");
|
|
}
|
|
get scanned() {
|
|
return this.chars.slice(0, this.i).join("");
|
|
}
|
|
sliceChars(start, end) {
|
|
return this.chars.slice(start, end).join("");
|
|
}
|
|
lookaheadIs(char) {
|
|
return this.lookahead === char;
|
|
}
|
|
lookaheadIsIn(tokens) {
|
|
return this.lookahead in tokens;
|
|
}
|
|
}
|
|
export const writeUnmatchedGroupCloseMessage = (char, unscanned) => `Unmatched ${char}${(unscanned === "" ? "" : ` before ${unscanned}`)}`;
|
|
export const writeUnclosedGroupMessage = (missingChar) => `Missing ${missingChar}`;
|