添加语音websocket等，还没测试

keyBoard/Class/AiTalk/VM/Segmenter.m

@@ -0,0 +1,148 @@
+//
+//  Segmenter.m
+//  keyBoard
+//
+//  Created by Mac on 2026/1/15.
+//
+
+#import "Segmenter.h"
+
+@interface Segmenter ()
+
+@property(nonatomic, strong) NSMutableString *buffer;
+@property(nonatomic, strong) NSMutableArray<NSString *> *readySegments;
+
+@end
+
+@implementation Segmenter
+
+- (instancetype)init {
+  self = [super init];
+  if (self) {
+    _buffer = [[NSMutableString alloc] init];
+    _readySegments = [[NSMutableArray alloc] init];
+    _maxCharacterThreshold = 30;
+  }
+  return self;
+}
+
+#pragma mark - Public Methods
+
+- (void)appendToken:(NSString *)token {
+  if (!token || token.length == 0) {
+    return;
+  }
+
+  [self.buffer appendString:token];
+
+  // 检查是否需要切分
+  [self checkAndSplit];
+}
+
+- (NSArray<NSString *> *)popReadySegments {
+  NSArray *segments = [self.readySegments copy];
+  [self.readySegments removeAllObjects];
+  return segments;
+}
+
+- (NSString *)flushRemainingSegment {
+  NSString *remaining = [self.buffer copy];
+  [self.buffer setString:@""];
+
+  // 去除首尾空白
+  remaining = [remaining
+      stringByTrimmingCharactersInSet:[NSCharacterSet
+                                          whitespaceAndNewlineCharacterSet]];
+
+  return remaining.length > 0 ? remaining : nil;
+}
+
+- (void)reset {
+  [self.buffer setString:@""];
+  [self.readySegments removeAllObjects];
+}
+
+#pragma mark - Private Methods
+
+- (void)checkAndSplit {
+  // 句子结束标点
+  NSCharacterSet *sentenceEnders =
+      [NSCharacterSet characterSetWithCharactersInString:@"。！？\n"];
+
+  while (YES) {
+    NSString *currentBuffer = self.buffer;
+
+    // 查找第一个句子结束标点
+    NSRange range = [currentBuffer rangeOfCharacterFromSet:sentenceEnders];
+
+    if (range.location != NSNotFound) {
+      // 找到结束标点，切分
+      NSUInteger endIndex = range.location + 1;
+      NSString *segment = [currentBuffer substringToIndex:endIndex];
+      segment = [segment stringByTrimmingCharactersInSet:
+                             [NSCharacterSet whitespaceAndNewlineCharacterSet]];
+
+      if (segment.length > 0) {
+        [self.readySegments addObject:segment];
+      }
+
+      // 移除已切分的部分
+      [self.buffer deleteCharactersInRange:NSMakeRange(0, endIndex)];
+    } else if (currentBuffer.length >= self.maxCharacterThreshold) {
+      // 未找到标点，但超过阈值，强制切分
+      // 尝试在空格或逗号处切分
+      NSRange breakRange = [self findBestBreakPoint:currentBuffer];
+
+      if (breakRange.location != NSNotFound) {
+        NSString *segment =
+            [currentBuffer substringToIndex:breakRange.location + 1];
+        segment =
+            [segment stringByTrimmingCharactersInSet:
+                         [NSCharacterSet whitespaceAndNewlineCharacterSet]];
+
+        if (segment.length > 0) {
+          [self.readySegments addObject:segment];
+        }
+
+        [self.buffer
+            deleteCharactersInRange:NSMakeRange(0, breakRange.location + 1)];
+      } else {
+        // 无法找到合适的断点，直接切分
+        NSString *segment =
+            [currentBuffer substringToIndex:self.maxCharacterThreshold];
+        segment =
+            [segment stringByTrimmingCharactersInSet:
+                         [NSCharacterSet whitespaceAndNewlineCharacterSet]];
+
+        if (segment.length > 0) {
+          [self.readySegments addObject:segment];
+        }
+
+        [self.buffer
+            deleteCharactersInRange:NSMakeRange(0, self.maxCharacterThreshold)];
+      }
+    } else {
+      // 未达到切分条件
+      break;
+    }
+  }
+}
+
+- (NSRange)findBestBreakPoint:(NSString *)text {
+  // 优先在逗号、分号等处断开
+  NSCharacterSet *breakChars =
+      [NSCharacterSet characterSetWithCharactersInString:@"，,、；;：: "];
+
+  // 从后往前查找，尽可能多包含内容
+  for (NSInteger i = text.length - 1; i >= self.maxCharacterThreshold / 2;
+       i--) {
+    unichar c = [text characterAtIndex:i];
+    if ([breakChars characterIsMember:c]) {
+      return NSMakeRange(i, 1);
+    }
+  }
+
+  return NSMakeRange(NSNotFound, 0);
+}
+
+@end