[Inspect] Fix indexpattern parsing leading to incomplete index pattern values being displayed

src/platform/plugins/shared/data/common/search/search_source/search_source.test.ts

@@ -1616,4 +1616,47 @@ describe('SearchSource', () => {
       );
     });
   });
+
+  describe('parseActiveIndexPatternFromQueryString', () => {
+    it.each([
+      {
+        indexPattern: '_index: logs-2024-06-27',
+        expectedResult: ['logs-2024-06-27'],
+        description: 'a single index name without wildcards',
+      },
+      {
+        indexPattern: '_index: logs-*',
+        expectedResult: ['logs-*'],
+        description: 'a single index name with wildcards',
+      },
+      {
+        indexPattern: '_index: logs-2024-06-27 or _index: foo-2024-06-27',
+        expectedResult: ['logs-2024-06-27', 'foo-2024-06-27'],
+        description: 'multiple index names',
+      },
+      {
+        indexPattern: "_index: 'logs-2024-06-27'",
+        expectedResult: ['logs-2024-06-27'],
+        description: 'index names with single quotes',
+      },
+      {
+        indexPattern: '_index: "logs-2024-06-27"',
+        expectedResult: ['logs-2024-06-27'],
+        description: 'index names with double quotes',
+      },
+      {
+        indexPattern: '_index: "logs-2024-06-27\'',
+        expectedResult: [],
+        description: 'index pattern with mixed quotes',
+      },
+      {
+        indexPattern: 'foo: bar',
+        expectedResult: [],
+        description: 'no index pattern when _index is not present',
+      },
+    ])('should extract $description', ({ indexPattern: actualIndexPattern, expectedResult }) => {
+      const result = searchSource.parseActiveIndexPatternFromQueryString(actualIndexPattern);
+      expect(result).toEqual(expectedResult);
+    });
+  });
 });

src/platform/plugins/shared/data/common/search/search_source/search_source.ts

@@ -1223,23 +1223,16 @@ export class SearchSource {
   }
 
   parseActiveIndexPatternFromQueryString(queryString: string): string[] {
-    let m;
     const indexPatternSet: Set<string> = new Set();
-    const regex = /\s?(_index)\s?:\s?[\'\"]?(\w+\-?\*?)[\'\"]?\s?(\w+)?/g;
+    //  Regex to capture full index names including dashes, numbers, and periods
+    const indexNameRegExp = /\s?(_index)\s*:\s*(['"]?)([^\s'"]+)\2/g;
 
-    while ((m = regex.exec(queryString)) !== null) {
-      // This is necessary to avoid infinite loops with zero-width matches
-      if (m.index === regex.lastIndex) {
-        regex.lastIndex++;
+    for (const match of queryString.matchAll(indexNameRegExp)) {
+      const indexName = match[3];
+      if (indexName) {
+        indexPatternSet.add(indexName);
       }
-
-      m.forEach((match, groupIndex) => {
-        if (groupIndex === 2) {
-          indexPatternSet.add(match);
-        }
-      });
     }
-
     return [...indexPatternSet];
   }
 }