Add SedEnhanced plugin (#1188)

* add SedEnchanced

* [SedEnhanced] add README.md

* [SedEnhanced] clarify in readme

* [SedEnhanced] fix typo in readme

* [SedEnhanced] make `sedRegex` const

* [SedEnhanced] Apply strict checking suggestion

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>

* [SedEnhanced] remove `export` from `currentReply`

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>

* [SedEnhanced] fix dodgy patch regex

* [SedEnhanced] improve patch regex further

* [SedEnhanced] add license header

* [SedEnhancer] add reasonable limits to patch `match`

* [SedEnhancer] improve reply logic

* [SedEnhanced] tighten patch further

* [SedEnhanced] use \i for identifier

* [SedEnhanced] add explanation for large pattern

* [SedEnhanced] fix typescript errors

* [SedEnhanced] fix remaining issues (hopefully)

* remove stuff we dont care about because I hate myself

* Update index.ts

* Update index.ts

* revert `[...flags]` back to `flags`

---------

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>
Co-authored-by: thororen1234 <78185467+thororen1234@users.noreply.github.com>

src/equicordplugins/sedEnhanced/index.ts

@@ -0,0 +1,75 @@
+/*
+ * Vencord, a Discord client mod
+ * Copyright (c) 2026 Vendicated and contributors
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+import { definePluginSettings } from "@api/Settings";
+import { EquicordDevs } from "@utils/constants";
+import definePlugin, { OptionType } from "@utils/types";
+import { MessageActions, MessageStore, PendingReplyStore, UserStore } from "@webpack/common";
+
+const sedRegex = /^s(?<sep>[/|$#@!])(?<match>(?!\1)(?:(?![^\\]\1).)*.|)\1(?<replace>(?!\1)(?:(?![^\\]\1).)*.|)\1?(?<modes>[rgmisudyv]*)$/;
+const settings = definePluginSettings({
+    regexByDefault: {
+        description: "Inverts the `r` flag, so using the `r` flag enables non-regex mode, and omitting it uses regex mode.",
+        type: OptionType.BOOLEAN,
+        default: false
+    }
+});
+
+export default definePlugin({
+    name: "SedEnhanced",
+    description: "Expands on Discord's rudimentary `sed` support.",
+    authors: [EquicordDevs.dawn, EquicordDevs.Willow, EquicordDevs.kat],
+    patches: [
+        {
+            find: ".SLASH_COMMAND_USED,{",
+            replacement: {
+                match: /searchReplace:\{match:(\i\(\)\.anyScopeRegex)/,
+                replace: "searchReplace:{match:$1($self.sedRegex),action:$self.searchReplace},_eq_$&"
+            }
+        }
+    ],
+    settings,
+    sedRegex,
+    searchReplace(content, { isEdit, channel }) {
+        if (isEdit) return;
+
+        const pendingReply = PendingReplyStore.getPendingReply(channel.id)?.message;
+        const toEdit = pendingReply ?? MessageStore.getLastEditableMessage(channel.id);
+        if (pendingReply && pendingReply.author.id !== UserStore.getCurrentUser()?.id || toEdit?.id == null) return { content: "" };
+
+        const groups = content.match(sedRegex)?.groups;
+        if (groups?.match == null || groups?.replace == null || groups?.modes == null) return;
+
+        let { match: pattern, replace, modes } = groups;
+        const flags = modes.split("");
+        const isRegex = flags.includes("r") !== settings.store.regexByDefault;
+
+        if (!isRegex) {
+            const escapeChars = /\\([*?+/])/g;
+            pattern = pattern.replace(escapeChars, (_, x) => x);
+            replace = replace.replace(escapeChars, (_, x) => x);
+        }
+
+        let find: string | RegExp = pattern;
+        if (isRegex) {
+            try {
+                const regexFlags = flags.filter(f => "gmisudyv".includes(f)).join("");
+                find = new RegExp(pattern, regexFlags);
+            } catch {
+                return { content: "" };
+            }
+        }
+
+        const replaced = flags.includes("g") ? toEdit.content.replaceAll(find, replace) : toEdit.content.replace(find, replace);
+        if (!replaced.trim() && toEdit.attachments.length === 0) {
+            MessageActions.deleteMessage(channel.id, toEdit.id);
+        } else if (replaced !== toEdit.content) {
+            MessageActions.editMessage(channel.id, toEdit.id, { content: replaced });
+        }
+
+        return { content: "" };
+    }
+});

src/utils/constants.ts

@@ -1366,6 +1366,18 @@ export const EquicordDevs = Object.freeze({
         name: "jahsohsani",
         id: 806442568564604968n
     },
+    dawn: {
+        name: "dawn",
+        id: 604653220341743618n
+    },
+    Willow: {
+        name: "Willow",
+        id: 965933914092888074n
+    },
+    kat: {
+        name: "kat",
+        id: 665120188047556609n
+    },
 } satisfies Record<string, Dev>);
 
 // iife so #__PURE__ works correctly