1 files changed, 74 insertions, 0 deletions
diff --git a/src/templates/assets/javascripts/integrations/search/internal/_/index.ts b/src/templates/assets/javascripts/integrations/search/internal/_/index.ts
new file mode 100644
index 00000000..ae8f6104
--- /dev/null
+++ b/src/templates/assets/javascripts/integrations/search/internal/_/index.ts
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2016-2023 Martin Donath <martin.donath@squidfunk.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+/* ----------------------------------------------------------------------------
+ * Helper types
+ * ------------------------------------------------------------------------- */
+
+/**
+ * Visitor function
+ *
+ * @param start - Start offset
+ * @param end - End offset
+ */
+type VisitorFn = (
+  start: number, end: number
+) => void
+
+/* ----------------------------------------------------------------------------
+ * Functions
+ * ------------------------------------------------------------------------- */
+
+/**
+ * Split a string using the given separator
+ *
+ * @param input - Input value
+ * @param separator - Separator
+ * @param fn - Visitor function
+ */
+export function split(
+  input: string, separator: RegExp, fn: VisitorFn
+): void {
+  separator = new RegExp(separator, "g")
+
+  /* Split string using separator */
+  let match: RegExpExecArray | null
+  let index = 0
+  do {
+    match = separator.exec(input)
+
+    /* Emit non-empty range */
+    const until = match?.index ?? input.length
+    if (index < until)
+      fn(index, until)
+
+    /* Update last index */
+    if (match) {
+      const [term] = match
+      index = match.index + term.length
+
+      /* Support zero-length lookaheads */
+      if (term.length === 0)
+        separator.lastIndex = match.index + 1
+    }
+  } while (match)
+}