1

Signed-off-by: Dmytro Stanchiev <git@dmytros.dev>

src/ralph-loop/command-arguments.ts

@@ -0,0 +1,38 @@
+export type RalphLoopStrategy = "reset" | "continue"
+
+export type ParsedRalphLoopArguments = {
+  prompt: string
+  maxIterations?: number
+  completionPromise?: string
+  strategy?: RalphLoopStrategy
+}
+
+const DEFAULT_PROMPT = "Complete the task as instructed"
+
+export function parseRalphLoopArguments(rawArguments: string): ParsedRalphLoopArguments {
+  const taskMatch = rawArguments.match(/^("|')(.+?)\1/)
+  const promptCandidate =
+    taskMatch?.[2] ??
+    (rawArguments.startsWith("--")
+      ? ""
+      : rawArguments.split(/\s+--/)[0]?.trim() ?? "")
+  const prompt = promptCandidate || DEFAULT_PROMPT
+
+  const maxIterationMatch = rawArguments.match(/--max-iterations=(\d+)/i)
+  const maxIterationsRaw = maxIterationMatch?.[1]
+  const completionPromiseQuoted = rawArguments.match(/--completion-promise=("|')(.+?)\1/i)
+  const completionPromiseUnquoted = rawArguments.match(/--completion-promise=([^\s\"']+)/i)
+  const completionPromise = completionPromiseQuoted?.[2] ?? completionPromiseUnquoted?.[1]
+  const strategyMatch = rawArguments.match(/--strategy=(reset|continue)/i)
+  const strategyValue = strategyMatch?.[1]?.toLowerCase()
+
+  return {
+    prompt,
+    maxIterations: maxIterationsRaw ? Number.parseInt(maxIterationsRaw, 10) : undefined,
+    completionPromise,
+    strategy:
+      strategyValue === "reset" || strategyValue === "continue"
+        ? (strategyValue as RalphLoopStrategy)
+        : undefined,
+  }
+}