Automatically adapt document formatting based on language and cultural context: date formats, currency symbols, letter styles, number separators, and forms of address etiquette.
Use Cases
- User says "Help me write a business letter" → automatically adapt to the letter format of the corresponding language
- User says "Format this report" → dates, numbers, and currency are presented according to the user's locale
- User says "Convert this document to formal format" → adapt to the formal conventions of the corresponding culture
Execution Method
Through LLM combined with system locale detection, automatically adapt to cultural conventions.
Locale Detection
# 检测系统语言设置
echo $LANG
# macOS 额外检测
defaults read NSGlobalDomain AppleLanguages 2>/dev/null
Format Adaptation Rules
Date Format
| Locale | Format | Example |
|---|---|---|
| en-US | MM/DD/YYYY | 02/09/2026 |
| en-GB | DD/MM/YYYY | 09/02/2026 |
| zh-CN | YYYY年MM月DD日 | 2026年02月09日 |
| ja-JP | YYYY年MM月DD日 | 2026年02月09日 |
| de-DE | DD.MM.YYYY | 09.02.2026 |
Numbers and Currency
| Locale | Thousands Separator | Decimal Point | Currency |
|---|---|---|---|
| en-US | 1,000.00 | . | $1,000.00 |
| de-DE | 1.000,00 | , | 1.000,00 € |
| zh-CN | 1,000.00 | . | ¥1,000.00 |
| ja-JP | 1,000 | . | ¥1,000 |
Business Letter Format
English (formal):
Dear Mr./Ms. [Last Name],
[Body]
Sincerely,
[Full Name]
[Title]
Chinese (Formal):
[职务] [姓名] ：
[正文]
此致
敬礼
[署名]
[日期]
日本語（敬語）:
[会社名]
[部署名] [役職] [名前] 様
[本文]
敬具
[署名]
[日付]
Forms of Address Etiquette
| Culture | Convention |
|---|---|
| English | Mr./Ms./Dr. + Last Name (first time), First Name (after familiarity) |
| 中文 | Surname + Job Title (Wang Zong, Li Jingli), or Surname + Mr./Ms. |
| 日本語 | Surname + 様/さん, or Surname + Job Title when using a title |
| Korean | 성 + 님/씨 |
Output Specifications
- Automatically detect the conversation language and adapt the format
- If the OS locale is detected to differ from the conversation language, ask the user for their preference
- Keep the core content unchanged; only adjust the formatting and etiquette layer
- Do not force conversion—when the user explicitly specifies a format, the user's request takes priority