snapshot of https://github.com/mountain-loop/yaak.git (main, 2026-09-23; blobs > 131072B omitted)

plugins/template-function-regex/src/index.ts

@@ -0,0 +1,76 @@
+import type { CallTemplateFunctionArgs, Context, PluginDefinition } from "@yaakapp/api";
+import type { TemplateFunctionArg } from "@yaakapp-internal/plugins";
+
+const inputArg: TemplateFunctionArg = {
+  type: "text",
+  name: "input",
+  label: "Input Text",
+  multiLine: true,
+};
+
+const regexArg: TemplateFunctionArg = {
+  type: "text",
+  name: "regex",
+  label: "Regular Expression",
+  placeholder: "\\w+",
+  defaultValue: ".*",
+  description:
+    "A JavaScript regular expression. Use a capture group to reference parts of the match in the replacement.",
+};
+
+export const plugin: PluginDefinition = {
+  templateFunctions: [
+    {
+      name: "regex.match",
+      description: "Extract text using a regular expression",
+      args: [inputArg, regexArg],
+      previewArgs: [regexArg.name],
+      async onRender(_ctx: Context, args: CallTemplateFunctionArgs): Promise<string | null> {
+        const input = String(args.values.input ?? "");
+        const regex = new RegExp(String(args.values.regex ?? ""));
+
+        const match = input.match(regex);
+        return match?.groups
+          ? (Object.values(match.groups)[0] ?? "")
+          : (match?.[1] ?? match?.[0] ?? "");
+      },
+    },
+    {
+      name: "regex.replace",
+      description: "Replace text using a regular expression",
+      previewArgs: [regexArg.name],
+      args: [
+        inputArg,
+        regexArg,
+        {
+          type: "text",
+          name: "replacement",
+          label: "Replacement Text",
+          placeholder: "hello $1",
+          description:
+            "The replacement text. Use $1, $2, ... to reference capture groups or $& to reference the entire match.",
+        },
+        {
+          type: "text",
+          name: "flags",
+          label: "Flags",
+          placeholder: "g",
+          defaultValue: "g",
+          optional: true,
+          description:
+            "Regular expression flags (g for global, i for case-insensitive, m for multiline, etc.)",
+        },
+      ],
+      async onRender(_ctx: Context, args: CallTemplateFunctionArgs): Promise<string | null> {
+        const input = String(args.values.input ?? "");
+        const replacement = String(args.values.replacement ?? "");
+        const flags = String(args.values.flags || "");
+        const regex = String(args.values.regex);
+
+        if (!regex) return "";
+
+        return input.replace(new RegExp(String(args.values.regex), flags), replacement);
+      },
+    },
+  ],
+};