源码快照 @ 2026-09-01 (source-only, 剔除非源码素材)

packages/agent/gui/shared/utils/agentTitleText.ts

@@ -0,0 +1,103 @@
+export function normalizeAgentTitleText(
+  value: string | null | undefined
+): string {
+  const trimmed = value?.trim() ?? "";
+  if (!trimmed) {
+    return "";
+  }
+  let normalized = "";
+  for (let index = 0; index < trimmed.length; ) {
+    const link = markdownLinkAt(trimmed, index);
+    if (!link) {
+      normalized += trimmed[index];
+      index += 1;
+      continue;
+    }
+    normalized += unescapeMarkdownLabel(
+      trimmed.slice(link.labelStart, link.labelEnd)
+    );
+    index = link.hrefEnd + 1;
+  }
+  return normalized.replace(/\s+/gu, " ").trim();
+}
+
+function unescapeMarkdownLabel(label: string): string {
+  let normalized = "";
+  let escaped = false;
+  for (const character of label) {
+    if (escaped) {
+      normalized += "\\[]()".includes(character) ? character : `\\${character}`;
+      escaped = false;
+      continue;
+    }
+    if (character === "\\") {
+      escaped = true;
+      continue;
+    }
+    normalized += character;
+  }
+  return escaped ? `${normalized}\\` : normalized;
+}
+
+function markdownLinkAt(
+  value: string,
+  start: number
+): {
+  hrefEnd: number;
+  labelEnd: number;
+  labelStart: number;
+} | null {
+  if (value[start] !== "[") {
+    return null;
+  }
+  const labelEnd = findUnescaped(value, start + 1, "]");
+  if (labelEnd < 0 || value[labelEnd + 1] !== "(") {
+    return null;
+  }
+  const hrefEnd = findBalancedHrefEnd(value, labelEnd + 2);
+  return hrefEnd < 0 ? null : { hrefEnd, labelEnd, labelStart: start + 1 };
+}
+
+function findUnescaped(value: string, start: number, target: string): number {
+  let escaped = false;
+  for (let index = start; index < value.length; index += 1) {
+    if (escaped) {
+      escaped = false;
+      continue;
+    }
+    if (value[index] === "\\") {
+      escaped = true;
+      continue;
+    }
+    if (value[index] === target) {
+      return index;
+    }
+  }
+  return -1;
+}
+
+function findBalancedHrefEnd(value: string, start: number): number {
+  let depth = 0;
+  let escaped = false;
+  for (let index = start; index < value.length; index += 1) {
+    if (escaped) {
+      escaped = false;
+      continue;
+    }
+    switch (value[index]) {
+      case "\\":
+        escaped = true;
+        break;
+      case "(":
+        depth += 1;
+        break;
+      case ")":
+        if (depth === 0) {
+          return index;
+        }
+        depth -= 1;
+        break;
+    }
+  }
+  return -1;
+}