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tweaked logic to allow - in user names, added more commenting

master
j 2024-03-31 00:18:53 -04:00
parent dbf25c6d5c
commit de052304d0
1 changed files with 16 additions and 6 deletions
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22
src/rdrama/services/CommentParser.ts
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@ -1,22 +1,32 @@
import { Comment } from '../models/Comment';
/**
* A utility class for parsing Reddit comments.
*/
export class CommentParser {
/**
* Extracts Reddit usernames from the body of a single comment.
* @param comment A single Comment object to be processed.
* @returns An array of unique Reddit usernames found in the comment.
* This method looks for patterns that match Reddit usernames, which start with "/u/" or "u/",
* and collects them into a Set to ensure uniqueness. It then returns an array of these unique usernames,
* all in lowercase to maintain consistency.
*
* @param {Comment} comment - A single Comment object to be processed.
* @returns {string[]} An array of unique Reddit usernames found in the comment.
*/
public static extractUsernames(comment: Comment): string[] {
const regexPattern: RegExp = /(^|\s|\\r\\n|\\t|[".,;(){}\[\]!?@#])(\/?u\/[a-zA-Z0-9_]+)/g;
// Define the regex pattern to match Reddit usernames. It looks for the "/u/" prefix,
// optionally preceded by certain characters (like whitespace or punctuation),
// followed by the username consisting of alphanumeric characters and underscores.
const regexPattern: RegExp = /(^|\s|\\r\\n|\\t|[".,;(){}\[\]!?@#])(\/?u\/[a-zA-Z0-9_\-]+)/g;
const foundUsernames: Set<string> = new Set();
const matches = comment.body.match(regexPattern);
if (matches) {
matches.forEach(match => {
// Ensure the username is captured in a standardized format
const usernameMatch = match.trim().match(/\/?u\/([a-zA-Z0-9_]+)/);
// Extract the username part from the match, ensuring it's in a consistent format.
const usernameMatch = match.trim().match(/\/?u\/([a-zA-Z0-9_\-]+)/);
if (usernameMatch) {
// Standardize to "username" format
// Convert the username to lowercase and add it to the Set to ensure uniqueness.
const username = `${usernameMatch[1].toLowerCase()}`;
foundUsernames.add(username);
}