diff --git a/package.json b/package.json
index 0850262..71dab27 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "main": "index.js",
   "type": "module",
   "scripts": {
-    "build": "deno build.ts --tagName 1.66.5b0 > ubo.js",
+    "build": "deno build.ts --tagName 1.66.5b2 > ubo.js",
     "test": "node --test"
   },
   "author": {
diff --git a/ubo.js b/ubo.js
index 8023ab4..3895c67 100644
--- a/ubo.js
+++ b/ubo.js
@@ -1885,6 +1885,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -1897,7 +1901,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -2206,7 +2210,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -2227,22 +2231,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -2251,12 +2260,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -2296,6 +2313,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -2627,6 +2645,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -2639,7 +2661,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -2948,7 +2970,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -2969,22 +2991,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -2993,12 +3020,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -3038,6 +3073,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -3369,6 +3405,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -3381,7 +3421,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -3690,7 +3730,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -3711,22 +3751,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -3735,12 +3780,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -3780,6 +3833,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -4111,6 +4165,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -4123,7 +4181,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -4432,7 +4490,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -4453,22 +4511,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -4477,12 +4540,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -4522,6 +4593,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -4853,6 +4925,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -4865,7 +4941,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -5174,7 +5250,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -5195,22 +5271,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -5219,12 +5300,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -5264,6 +5353,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -5348,11 +5438,11 @@ function editInboundObjectFn(
         return objAfter;
     };
     proxyApplyFn(propChain, function(context) {
-        const i = getArgPos(context.args);
+        const i = getArgPos(context.callArgs);
         if ( i !== undefined ) {
-            const obj = editObj(context.args[i]);
+            const obj = editObj(context.callArgs[i]);
             if ( obj ) {
-                context.args[i] = obj;
+                context.callArgs[i] = obj;
             }
         }
         return context.reflect();
@@ -5621,6 +5711,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -5633,7 +5727,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -5942,7 +6036,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -5963,22 +6057,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -5987,12 +6086,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -6032,6 +6139,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -6116,11 +6224,11 @@ function editInboundObjectFn(
         return objAfter;
     };
     proxyApplyFn(propChain, function(context) {
-        const i = getArgPos(context.args);
+        const i = getArgPos(context.callArgs);
         if ( i !== undefined ) {
-            const obj = editObj(context.args[i]);
+            const obj = editObj(context.callArgs[i]);
             if ( obj ) {
-                context.args[i] = obj;
+                context.callArgs[i] = obj;
             }
         }
         return context.reflect();
@@ -6669,7 +6777,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -6690,22 +6798,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -6714,12 +6827,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -6759,6 +6880,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -7410,7 +7532,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -7431,22 +7553,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -7455,12 +7582,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -7500,6 +7635,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -8151,7 +8287,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -8172,22 +8308,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -8196,12 +8337,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -8241,6 +8390,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -8875,7 +9025,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -8896,22 +9046,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -8920,12 +9075,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -8965,6 +9128,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -9130,6 +9294,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -9142,7 +9310,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -9679,7 +9847,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -9700,22 +9868,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -9724,12 +9897,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -9769,6 +9950,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -9946,6 +10128,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -9958,7 +10144,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -10495,7 +10681,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -10516,22 +10702,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -10540,12 +10731,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -10585,6 +10784,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -10762,6 +10962,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -10774,7 +10978,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -11311,7 +11515,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -11332,22 +11536,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -11356,12 +11565,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -11401,6 +11618,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -11574,6 +11792,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -11586,7 +11808,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -12123,7 +12345,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -12144,22 +12366,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -12168,12 +12395,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -12213,6 +12448,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -12877,7 +13113,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -12898,22 +13134,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -12922,12 +13163,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -12967,6 +13216,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -13632,7 +13882,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -13653,22 +13903,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -13677,12 +13932,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -13722,6 +13985,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -13896,6 +14160,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -13908,7 +14176,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -14467,7 +14735,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -14488,22 +14756,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -14512,12 +14785,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -14557,6 +14838,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -14739,6 +15021,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -14751,7 +15037,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -15310,7 +15596,7 @@ class JSONPath {
                 continue;
             }
             if ( c0 === 0x27 /* ' */ ) {
-                const r = this.#consumeQuotedIdentifier(query, i+1);
+                const r = this.#untilChar(query, 0x27 /* ' */, i+1)
                 if ( r === undefined ) { return; }
                 keys.push(r.s);
                 i = r.i;
@@ -15331,22 +15617,27 @@ class JSONPath {
         }
         return { s: keys.length === 1 ? keys[0] : keys, i };
     }
-    #consumeQuotedIdentifier(query, i) {
+    #consumeUnquotedIdentifier(query, i) {
+        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
+        if ( match === null ) { return; }
+        return match[0];
+    }
+    #untilChar(query, targetCharCode, i) {
         const len = query.length;
         const parts = [];
         let beg = i, end = i;
         for (;;) {
             if ( end === len ) { return; }
             const c = query.charCodeAt(end);
-            if ( c === 0x27 /* ' */ ) {
+            if ( c === targetCharCode ) {
                 parts.push(query.slice(beg, end));
                 end += 1;
                 break;
             }
             if ( c === 0x5C /* \ */ && (end+1) < len ) {
                 parts.push(query.slice(beg, end));
-                const d = query.chatCodeAt(end+1);
-                if ( d === 0x27 || d === 0x5C ) {
+                const d = query.charCodeAt(end+1);
+                if ( d === targetCharCode || d === 0x5C ) {
                     end += 1;
                     beg = end;
                 }
@@ -15355,12 +15646,20 @@ class JSONPath {
         }
         return { s: parts.join(''), i: end };
     }
-    #consumeUnquotedIdentifier(query, i) {
-        const match = this.#reUnquotedIdentifier.exec(query.slice(i));
-        if ( match === null ) { return; }
-        return match[0];
-    }
     #compileExpr(query, step, i) {
+        if ( query.startsWith('=/', i) ) {
+            const r = this.#untilChar(query, 0x2F /* / */, i+2);
+            if ( r === undefined ) { return i; }
+            const match = /^[i]/.exec(query.slice(r.i));
+            try {
+                step.rval = new RegExp(r.s, match && match[0] || undefined);
+            } catch {
+                return i;
+            }
+            step.op = 're';
+            if ( match ) { r.i += match[0].length; }
+            return r.i;
+        }
         const match = this.#reExpr.exec(query.slice(i));
         if ( match === null ) { return i; }
         try {
@@ -15400,6 +15699,7 @@ class JSONPath {
         case '^=': outcome = `${v}`.startsWith(step.rval) === target; break;
         case '$=': outcome = `${v}`.endsWith(step.rval) === target; break;
         case '*=': outcome = `${v}`.includes(step.rval) === target; break;
+        case 're': outcome = step.rval.test(`${v}`); break;
         default: outcome = hasOwn === target; break;
         }
         if ( outcome ) { return k; }
@@ -16325,6 +16625,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -16337,7 +16641,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -18144,6 +18448,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -18156,7 +18464,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -18789,6 +19097,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -18801,7 +19113,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -18899,6 +19211,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -18911,7 +19227,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -19350,6 +19666,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -19362,7 +19682,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -20254,6 +20574,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -20266,7 +20590,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -20589,6 +20913,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -20601,7 +20929,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -20894,6 +21222,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -20906,7 +21238,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -22109,6 +22441,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -22121,7 +22457,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -22252,10 +22588,19 @@ function trustedReplaceArgument(
     const logPrefix = safe.makeLogPrefix('trusted-replace-argument', propChain, argposRaw, argraw);
     const argoffset = parseInt(argposRaw, 10) || 0;
     const extraArgs = safe.getExtraArgs(Array.from(arguments), 3);
-    const replacer = argraw.startsWith('repl:/') &&
-        parseReplaceFn(argraw.slice(5)) || undefined;
-    const value = replacer === undefined &&
-        validateConstantFn(true, argraw, extraArgs);
+    let replacer;
+    if ( argraw.startsWith('repl:/') ) {
+        const parsed = parseReplaceFn(argraw.slice(5));
+        if ( parsed === undefined ) { return; }
+        replacer = arg => `${arg}`.replace(replacer.re, replacer.replacement);
+    } else if ( argraw.startsWith('add:') ) {
+        const delta = parseFloat(argraw.slice(4));
+        if ( isNaN(delta) ) { return; }
+        replacer = arg => Number(arg) + delta;
+    } else {
+        const value = validateConstantFn(true, argraw, extraArgs);
+        replacer = ( ) => value;
+    }
     const reCondition = extraArgs.condition
         ? safe.patternToRegex(extraArgs.condition)
         : /^/;
@@ -22287,9 +22632,7 @@ function trustedReplaceArgument(
                 return context.reflect();
             }
         }
-        const argAfter = replacer && typeof argBefore === 'string'
-            ? argBefore.replace(replacer.re, replacer.replacement)
-            : value;
+        const argAfter = replacer(argBefore);
         if ( argAfter !== argBefore ) {
             setArg(context, argAfter);
             safe.uboLog(logPrefix, `Replaced argument:\nBefore: ${JSON.stringify(argBefore)}\nAfter: ${argAfter}`);
@@ -26500,6 +26843,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -26512,7 +26859,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -28553,6 +28900,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -28565,7 +28916,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -32167,6 +32518,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -32179,7 +32534,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -32298,6 +32653,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -32310,7 +32669,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -33367,6 +33726,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -33379,7 +33742,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };
@@ -33737,6 +34100,10 @@ function proxyApplyFn(
                     : new proxyApplyFn.ApplyContext(...args);
             }
         };
+        proxyApplyFn.isCtor = new Map();
+    }
+    if ( proxyApplyFn.isCtor.has(target) === false ) {
+        proxyApplyFn.isCtor.set(target, fn.prototype?.constructor === fn);
     }
     const fnStr = fn.toString();
     const toString = (function toString() { return fnStr; }).bind(null);
@@ -33749,7 +34116,7 @@ function proxyApplyFn(
             return Reflect.get(target, prop);
         },
     };
-    if ( fn.prototype?.constructor === fn ) {
+    if ( proxyApplyFn.isCtor.get(target) ) {
         proxyDetails.construct = function(target, args) {
             return handler(proxyApplyFn.CtorContext.factory(target, args));
         };