defineTextTemplate
KIT · function · 运行时值
The program owns the master; inserted model text is a value and is substituted once only.
Substitution is single-pass String.replace: a value that itself contains {{slot}} is left as literal text, so a slot value cannot inject further substitutions.
导入
import { defineTextTemplate } from '@jangts/agent-core/kits/presentation';import { defineTextTemplate } from '@jangts/agent-core/kits/presentation';其他公开入口：@jangts/agent-core、@jangts/agent-core/types、@jangts/agent-core/kits/presentation、@jangts/agent-core/kits。
定义
调用
defineTextTemplate(master: string, options?: TextTemplateOptions): Readonly<{ slots: readonly string[]; render(values: Readonly<Record<string, string>>): string; }>The program owns the master; inserted model text is a value and is substituted once only.
Substitution is single-pass String.replace: a value that itself contains {{slot}} is left as literal text, so a slot value cannot inject further substitutions.
| 参数 | 类型 | 传递 | 说明 |
|---|---|---|---|
master | string | 必需 | — |
options | TextTemplateOptions | 可省略 | — |
options 的字段
| 字段 | 类型 | 必需 | 说明 |
|---|---|---|---|
observe | ((result: string) => void | Promise<void>) | undefined | 可省略 | 只读。Observer invoked with every rendered text. |
errors | { readonly missingField?: (key: string) => Error | string; } | undefined | 可省略 | 只读。Builds the error for a slot the caller did not supply; receives the slot name. |
返回： Readonly<{ slots: readonly string[]; render(values: Readonly<Record<string, string>>): string; }>。
返回值结构
| 字段 | 类型 | 必需 | 说明 |
|---|---|---|---|
slots | readonly string[] | 必需 | 见类型定义及调用场景。 |
render | (values: Readonly<Record<string, string>>) => string | 必需 | 见类型定义及调用场景。 |
使用示例
- 模板、语义槽与表达选择：程序拥有模板和偏好顺序，插入值只替换一次，变体随机源由 App 提供。
先用程序模板组合说明
入门 · Node.js
import { Presentation } from '@jangts/agent-core/kits/presentation';
const template = Presentation.defineTextTemplate('你好，{{name}}。{{body}}');
console.log(template.render({ name: '开发者', body: '普通对象也能实现接口。' }));import { Presentation } from '@jangts/agent-core/kits/presentation';
const template = Presentation.defineTextTemplate('你好，{{name}}。{{body}}');
console.log(template.render({ name: '开发者', body: '普通对象也能实现接口。' }));相同模板加语义键校验与不重复变体
配置 · Node.js
import { Presentation } from '@jangts/agent-core/kits/presentation';
const slots = Presentation.defineSemanticSlots({ namespace: 'tone', keys: ['brief', 'detailed'], maxOccurrences: 1 });
console.log(slots.isValid('{{tone:brief}}'));
const greeting = Presentation.selectVariant(['你好', '欢迎'], { previous: '你好', randomIndex: () => 0 });
const tone = Presentation.resolvePreference([{ value: 'brief', priority: 1, order: 0 }, { value: 'detailed', priority: 2, order: 1 }]);
const template = Presentation.defineTextTemplate('{{greeting}}，{{body}}');
console.log(template.render({ greeting: greeting ?? '你好', body: tone === 'detailed' ? '下面逐步说明接口。' : '普通对象即可。' }));import { Presentation } from '@jangts/agent-core/kits/presentation';
const slots = Presentation.defineSemanticSlots({ namespace: 'tone', keys: ['brief', 'detailed'], maxOccurrences: 1 });
console.log(slots.isValid('{{tone:brief}}'));
const greeting = Presentation.selectVariant(['你好', '欢迎'], { previous: '你好', randomIndex: () => 0 });
const tone = Presentation.resolvePreference([{ value: 'brief', priority: 1, order: 0 }, { value: 'detailed', priority: 2, order: 1 }]);
const template = Presentation.defineTextTemplate('{{greeting}}，{{body}}');
console.log(template.render({ greeting: greeting ?? '你好', body: tone === 'detailed' ? '下面逐步说明接口。' : '普通对象即可。' }));