[JS] Let AFSpecial_KeystrokeEx match a format without 'decoration' (bug 1916714)

It'll let the user enter 1234567 instead of 123-4567 for example.
It works like this in other pdf viewers.

src/scripting_api/aform.js

@@ -560,6 +560,22 @@ class AForm {
   }
 
   AFSpecial_KeystrokeEx(cMask) {
+    const event = globalThis.event;
+
+    // Simplify the format string by removing all characters that are not
+    // specific to the format because the user could enter 1234567 when the
+    // format is 999-9999.
+    const simplifiedFormatStr = cMask.replaceAll(/[^9AOX]/g, "");
+    this.#AFSpecial_KeystrokeEx_helper(simplifiedFormatStr, false);
+    if (event.rc) {
+      return;
+    }
+
+    event.rc = true;
+    this.#AFSpecial_KeystrokeEx_helper(cMask, true);
+  }
+
+  #AFSpecial_KeystrokeEx_helper(cMask, warn) {
     if (!cMask) {
       return;
     }
@@ -605,20 +621,26 @@ class AForm {
     const err = `${GlobalConstants.IDS_INVALID_VALUE} = "${cMask}"`;
 
     if (value.length > cMask.length) {
-      this._app.alert(err);
+      if (warn) {
+        this._app.alert(err);
+      }
       event.rc = false;
       return;
     }
 
     if (event.willCommit) {
       if (value.length < cMask.length) {
-        this._app.alert(err);
+        if (warn) {
+          this._app.alert(err);
+        }
         event.rc = false;
         return;
       }
 
       if (!_checkValidity(value, cMask)) {
-        this._app.alert(err);
+        if (warn) {
+          this._app.alert(err);
+        }
         event.rc = false;
         return;
       }
@@ -631,7 +653,9 @@ class AForm {
     }
 
     if (!_checkValidity(value, cMask)) {
-      this._app.alert(err);
+      if (warn) {
+        this._app.alert(err);
+      }
       event.rc = false;
     }
   }
@@ -651,7 +675,7 @@ class AForm {
       case 2:
         const value = this.AFMergeChange(event);
         formatStr =
-          value.length > 8 || value.startsWith("(")
+          value.startsWith("(") || (value.length > 7 && /^\p{N}+$/.test(value))
             ? "(999) 999-9999"
             : "999-9999";
         break;

test/unit/scripting_spec.js

@@ -1571,6 +1571,67 @@ describe("Scripting", function () {
         send_queue.delete(refId);
       });
 
+      it("should validate a US phone number with digits only (long) on a keystroke event", async () => {
+        const refId = getId();
+        const data = {
+          objects: {
+            field: [
+              {
+                id: refId,
+                value: "",
+                actions: {
+                  Keystroke: [`AFSpecial_Keystroke(2);`],
+                },
+                type: "text",
+              },
+            ],
+          },
+          appInfo: { language: "en-US", platform: "Linux x86_64" },
+          calculationOrder: [],
+          dispatchEventName: "_dispatchMe",
+        };
+        sandbox.createSandbox(data);
+
+        let value = "";
+        const changes = "1234567890";
+        let i = 0;
+
+        for (; i < changes.length; i++) {
+          const change = changes.charAt(i);
+          await sandbox.dispatchEventInSandbox({
+            id: refId,
+            value,
+            change,
+            name: "Keystroke",
+            willCommit: false,
+            selStart: i,
+            selEnd: i,
+          });
+          expect(send_queue.has(refId)).toEqual(true);
+          send_queue.delete(refId);
+          value += change;
+        }
+
+        await sandbox.dispatchEventInSandbox({
+          id: refId,
+          value,
+          change: "A",
+          name: "Keystroke",
+          willCommit: false,
+          selStart: i,
+          selEnd: i,
+        });
+        expect(send_queue.has(refId)).toEqual(true);
+        expect(send_queue.get(refId)).toEqual({
+          id: refId,
+          siblings: null,
+          value,
+          selRange: [i, i],
+        });
+
+        send_queue.delete(refId);
+      });
+
       it("should validate a US phone number (short) on a keystroke event", async () => {
         const refId = getId();
         const data = {
@@ -1631,6 +1692,67 @@ describe("Scripting", function () {
 
         send_queue.delete(refId);
       });
+
+      it("should validate a US phone number with digits only (short) on a keystroke event", async () => {
+        const refId = getId();
+        const data = {
+          objects: {
+            field: [
+              {
+                id: refId,
+                value: "",
+                actions: {
+                  Keystroke: [`AFSpecial_Keystroke(2);`],
+                },
+                type: "text",
+              },
+            ],
+          },
+          appInfo: { language: "en-US", platform: "Linux x86_64" },
+          calculationOrder: [],
+          dispatchEventName: "_dispatchMe",
+        };
+        sandbox.createSandbox(data);
+
+        let value = "";
+        const changes = "1234567";
+        let i = 0;
+
+        for (; i < changes.length; i++) {
+          const change = changes.charAt(i);
+          await sandbox.dispatchEventInSandbox({
+            id: refId,
+            value,
+            change,
+            name: "Keystroke",
+            willCommit: false,
+            selStart: i,
+            selEnd: i,
+          });
+          expect(send_queue.has(refId)).toEqual(true);
+          send_queue.delete(refId);
+          value += change;
+        }
+
+        await sandbox.dispatchEventInSandbox({
+          id: refId,
+          value,
+          change: "A",
+          name: "Keystroke",
+          willCommit: false,
+          selStart: i,
+          selEnd: i,
+        });
+        expect(send_queue.has(refId)).toEqual(true);
+        expect(send_queue.get(refId)).toEqual({
+          id: refId,
+          siblings: null,
+          value,
+          selRange: [i, i],
+        });
+
+        send_queue.delete(refId);
+      });
     });
 
     describe("eMailValidate", function () {