Fix where filter for tx list query

CHANGELOG.md

@@ -3,6 +3,10 @@
 All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog], and this project adheres to [Semantic Versioning].
 
+## [Unreleased]
+### Fixed
+- `tx` caller `where` filter
+
 ## [1.2.0] - 2024-03-19
 ### Added
 - `Text` Proposal type

src/callers/tx.ts

@@ -20,11 +20,17 @@ import {
 const createWhereFilter = (sender: PublicKey | null, operator?: string) => {
   const exp = { signer_infos: {}, block: {} }
 
+  const escapedString = sender?.key.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
+  const regex = new RegExp(escapedString!).toString()
+
+  // Remove the first and last character of the regex string to remove the / at the start and end
+  const regexString = regex.substring(1, regex.length - 1)
+
   if (sender) {
     exp.signer_infos = {
       _cast: {
         String: {
-          _regex: sender?.key,
+          _regex: regexString,
         },
       },
     }