run: make minimal mode more minimal (#31227)

2026-06-07 23:26:14 +02:00
parent 9a489d136e
commit 42a94c6dd1
39 changed files with 3138 additions and 959 deletions
@@ -0,0 +1,162 @@
+import type { RunPromptPart } from "./types"
+
+type Mention = Extract<RunPromptPart, { type: "file" | "agent" }>
+
+export function resolveEditorSlashValue(text: string) {
+  const head = slashHead(text)
+  if (!head || head.name.toLowerCase() !== "editor") {
+    return text
+  }
+
+  return head.arguments
+}
+
+export function realignEditorPromptParts(content: string, parts: RunPromptPart[]): RunPromptPart[] {
+  const matches = new Map<number, Mention | undefined>()
+  const used: Array<{ start: number; end: number }> = []
+
+  for (const [index, part] of parts.entries()) {
+    if (part.type !== "file" && part.type !== "agent") {
+      continue
+    }
+
+    const text = promptPartText(part)
+    if (!text) {
+      continue
+    }
+
+    const start = findPromptPartIndex(content, text, used, promptPartStart(part))
+    if (start === -1) {
+      matches.set(index, undefined)
+      continue
+    }
+
+    const end = start + text.length
+    used.push({ start, end })
+    matches.set(index, updatePromptPart(part, start, end, text))
+  }
+
+  const next: RunPromptPart[] = []
+  for (const [index, part] of parts.entries()) {
+    if (part.type !== "file" && part.type !== "agent") {
+      next.push(part)
+      continue
+    }
+
+    if (!promptPartText(part)) {
+      next.push(part)
+      continue
+    }
+
+    const match = matches.get(index)
+    if (match) {
+      next.push(match)
+    }
+  }
+
+  return next
+}
+
+function slashHead(text: string) {
+  if (!text.startsWith("/")) {
+    return
+  }
+
+  for (let i = 1; i < text.length; i++) {
+    switch (text[i]) {
+      case " ":
+      case "\t":
+      case "\n":
+        return {
+          name: text.slice(1, i),
+          arguments: text.slice(i + 1),
+        }
+    }
+  }
+
+  return {
+    name: text.slice(1),
+    arguments: "",
+  }
+}
+
+function promptPartText(part: Mention) {
+  if (part.type === "agent") {
+    return part.source?.value
+  }
+
+  return part.source?.text.value
+}
+
+function promptPartStart(part: Mention) {
+  if (part.type === "agent") {
+    return part.source?.start ?? Number.POSITIVE_INFINITY
+  }
+
+  return part.source?.text.start ?? Number.POSITIVE_INFINITY
+}
+
+function findPromptPartIndex(
+  content: string,
+  text: string,
+  used: Array<{ start: number; end: number }>,
+  hint: number,
+) {
+  let searchFrom = 0
+  let best = -1
+  let distance = Number.POSITIVE_INFINITY
+  const hinted = Number.isFinite(hint)
+
+  while (true) {
+    const start = content.indexOf(text, searchFrom)
+    if (start === -1) {
+      return best
+    }
+
+    const end = start + text.length
+    searchFrom = start + 1
+    if (used.some((range) => start < range.end && end > range.start)) {
+      continue
+    }
+
+    if (!hinted) {
+      return start
+    }
+
+    const nextDistance = Math.abs(start - hint)
+    if (nextDistance < distance) {
+      best = start
+      distance = nextDistance
+    }
+  }
+}
+
+function updatePromptPart(part: Mention, start: number, end: number, text: string): Mention {
+  if (part.type === "agent") {
+    return {
+      ...part,
+      source: {
+        start,
+        end,
+        value: text,
+      },
+    }
+  }
+
+  if (!part.source?.text) {
+    return part
+  }
+
+  return {
+    ...part,
+    source: {
+      ...part.source,
+      text: {
+        ...part.source.text,
+        start,
+        end,
+        value: text,
+      },
+    },
+  }
+}