Regex: Upgrade engine

If the extension is disabled, don't use any regex formatting. In
addition, wrap all foreach logic into its own function which
reduces the size of all regex injections.

This commit also removes the need for working around static imports
as UI is separate from the engine and is therefore imported at the
same time as other non-static extensions.

Signed-off-by: kingbri <bdashore3@proton.me>

public/scripts/extensions/regex/engine.js

@@ -1,8 +1,19 @@
 import { substituteParams } from "../../../script.js";
+import { extension_settings } from "../../extensions.js";
 export {
+    regex_placement,
+    getRegexedString,
     runRegexScript
 }
 
+const regex_placement = {
+    MD_DISPLAY: 0,
+    USER_INPUT: 1,
+    AI_OUTPUT: 2,
+    SYSTEM: 3,
+    SENDAS: 4
+}
+
 // From: https://github.com/IonicaBizau/regex-parser.js/blob/master/lib/index.js
 function regexFromString(input) {
     // Parse input
@@ -17,6 +28,21 @@ function regexFromString(input) {
     return new RegExp(m[2], m[3]);
 }
 
+function getRegexedString(rawString, placement) {
+    if (extension_settings.disabledExtensions.includes("regex") || !rawString || placement === undefined) {
+        return;
+    }
+
+    let finalString;
+    extension_settings.regex.forEach((script) => {
+        if (script.placement.includes(placement)) {
+            finalString = runRegexScript(script, rawString);
+        }
+    });
+
+    return finalString;
+}
+
 // Runs the provided regex script on the given string
 function runRegexScript(regexScript, rawString) {
     if (!!(regexScript.disabled)) {