pkg/memory/dialog/
├── extractor.go    # 关键词提取器
├── keywords_zh.go  # 中文关键词矩阵
└── keywords_en.go  # 英文关键词矩阵

type PreferenceCategory string

const (
    CategoryPreference PreferenceCategory = "preference" // 一般偏好
    CategoryConstraint PreferenceCategory = "constraint" // 约束条件
    CategoryStyle      PreferenceCategory = "style"      // 风格偏好
    CategoryAudience   PreferenceCategory = "audience"   // 受众偏好
    CategoryLength     PreferenceCategory = "length"     // 长度偏好
    CategoryFormat     PreferenceCategory = "format"     // 格式偏好
)

// ExtractedPreference 提取的偏好
type ExtractedPreference struct {
    Category   PreferenceCategory // 分类
    Content    string             // 内容（包含关键词的句子）
    Keywords   []string           // 匹配的关键词
    Confidence float64            // 置信度
    Timestamp  time.Time          // 提取时间
}

import "github.com/astercloud/aster/pkg/memory/dialog"

// 使用默认中文关键词
extractor := dialog.NewExtractor(dialog.DefaultChineseKeywords(), nil)

// 使用写作风格关键词（扩展版）
extractor := dialog.NewExtractor(dialog.WritingStyleKeywords(), nil)

// 使用英文关键词
extractor := dialog.NewExtractor(dialog.DefaultEnglishKeywords(), nil)

message := "我想要轻松一点的风格，字数控制在2000字以内，不要使用网络流行语"

preferences := extractor.Extract(message)

for _, pref := range preferences {
    fmt.Printf("[%s] %s (置信度: %.2f)\n",
        pref.Category, pref.Content, pref.Confidence)
}

// 输出:
// [preference] 我想要轻松一点的风格 (置信度: 0.60)
// [length] 字数控制在2000字以内 (置信度: 0.60)
// [constraint] 不要使用网络流行语 (置信度: 0.80)

// 检查消息是否包含偏好关键词
if extractor.HasPreferenceKeyword(message) {
    // 值得进一步提取
    preferences := extractor.Extract(message)
}

// DefaultChineseKeywords 默认中文关键词
func DefaultChineseKeywords() KeywordMatrix {
    return KeywordMatrix{
        CategoryPreference: {"想要", "希望", "喜欢", "偏好", "倾向", "更喜欢", "觉得", "认为"},
        CategoryConstraint: {"必须", "一定要", "不要", "禁止", "不能", "避免", "不允许", "务必"},
        CategoryStyle:      {"风格", "语气", "调性", "口吻", "正式", "轻松", "幽默", "严肃", "专业"},
        CategoryAudience:   {"读者", "受众", "目标人群", "给谁看", "用户", "客户"},
        CategoryLength:     {"字数", "长度", "篇幅", "简短", "简洁", "详细", "控制在"},
        CategoryFormat:     {"格式", "排版", "列表", "段落", "标题", "markdown"},
    }
}

// WritingStyleKeywords 写作风格关键词（扩展）
func WritingStyleKeywords() KeywordMatrix {
    // 基于 DefaultChineseKeywords 扩展
    // 添加: 文风、笔触、叙述方式、第一人称、第三人称、主题、题材、重点等
}

// ContentPlatformKeywords 内容平台关键词
func ContentPlatformKeywords() KeywordMatrix {
    // 添加平台: 微信、公众号、小红书、抖音、知乎、微博、B站等
}

// DefaultEnglishKeywords 默认英文关键词
func DefaultEnglishKeywords() KeywordMatrix {
    return KeywordMatrix{
        CategoryPreference: {"want", "prefer", "like", "hope", "wish", "would like", "I'd like"},
        CategoryConstraint: {"must", "have to", "don't", "do not", "never", "avoid", "should not"},
        CategoryStyle:      {"style", "tone", "voice", "formal", "casual", "professional", "friendly"},
        CategoryAudience:   {"reader", "audience", "target", "user", "customer", "intended for"},
        CategoryLength:     {"words", "length", "short", "brief", "detailed", "comprehensive"},
        CategoryFormat:     {"format", "layout", "list", "bullet", "paragraph", "heading", "markdown"},
    }
}

// TechnicalWritingKeywords 技术写作关键词
func TechnicalWritingKeywords() KeywordMatrix {
    // 扩展: technical, documentation, tutorial, guide, step-by-step, code block等
}

// MarketingContentKeywords 营销内容关键词
func MarketingContentKeywords() KeywordMatrix {
    // 扩展: persuasive, engaging, call to action, benefits, prospect等
}

extractor := dialog.NewExtractor(nil, nil)

// 设置完整的关键词矩阵
extractor.SetKeywords(dialog.KeywordMatrix{
    dialog.CategoryPreference: {"want", "need", "prefer"},
    dialog.CategoryConstraint: {"must", "avoid", "don't"},
})

// 向现有类别添加关键词
extractor.AddKeywords(dialog.CategoryStyle, []string{
    "vintage", "modern", "minimalist",
})

config := &dialog.ExtractorConfig{
    MinConfidence:    0.5,  // 最低置信度（低于此值不返回）
    MaxExtractLength: 200,  // 最大提取长度（防止句子过长）
}

extractor := dialog.NewExtractor(keywords, config)

// 支持的句子结束符
// 中文: 。！？
// 英文: . ! ?
// 通用: \n

import (
    "github.com/astercloud/aster/pkg/memory/dialog"
    "github.com/astercloud/aster/pkg/memory/project"
)

extractor := dialog.NewExtractor(dialog.WritingStyleKeywords(), nil)
store := project.NewFileStore(config)

func recordPreferences(projectID, message string) error {
    prefs := extractor.Extract(message)
    for _, pref := range prefs {
        err := store.AppendEntry(ctx, projectID, project.SectionPreferences, &project.Entry{
            Category: string(pref.Category),
            Content:  pref.Content,
            Source:   "dialog",
        })
        if err != nil {
            return err
        }
    }
    return nil
}

import (
    "github.com/astercloud/aster/pkg/memory/dialog"
    "github.com/astercloud/aster/pkg/memory/auto"
)

// 使用 dialog.Extractor 作为 auto.Capturer 的预处理
extractor := dialog.NewExtractor(dialog.DefaultChineseKeywords(), nil)

if extractor.HasPreferenceKeyword(message) {
    // 有偏好关键词，使用 Capturer 捕获
    capturer.CaptureFromDialog(ctx, projectID, sessionID, "user", message)
}