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Add support for "<%_", "_%>" and "-%>" delimiters in templating in @angular-devkit/core

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Issue 类型
功能
描述清晰度
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活跃度
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技术栈
typescript
领域
tooling

调研方向

该 issue 指出了 @angular-devkit/core 的模板实现,但没有指定文件或测试。首先定位该实现,并将其分隔符处理方式与 EJS 进行比较;对于所示的 schematic template,当去除空白的分隔符 <%、_%> 和 -%> 能够正常工作时,即视为完成。

由索引模型根据 Issue 内容生成。

描述

area: @angular-devkit/core feature feature: in backlog

🚀 Feature request

Command (mark with an x)
  • generate
Description

The templating for the @angular/devkit library uses EJS, sort of but doesn't support whitespace slurping the way that the documentation of EJS has declared it. Having this would enable schematic templates to be much more flexible with their whitespace and therefor easier to read while still creating nicely formatted files.

Describe the solution you'd like

The three delimiters: "<%_", "_%>" and "-%>" should just be added and work the same way that they do in EJS.

I already have an idea of the code that I'd like to add, and a pull request almost ready. It's very simple and only affects one file.

Examples

Within @schematics/angular this would allow an example like the following

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
<%_ if (routing) { %>
import { AppRoutingModule } from './app-routing.module';
<%_ } -%>
import { AppComponent } from './app.component';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    <%_ if (routing) { -%>
    AppRoutingModule,
    <%_ } -%>
    BrowserModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

Which would generate with the correct whitespace.

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