dsh-markdown-input
中文 | English
在 DeepSeek Harness（DSH）的输入框里写 Markdown：列表显示为圆点和复选框，粗体、斜体、行内代码、删除线和代码块实时呈现，Shift+Enter 自动续写列表。发送出去的仍是你输入的 Markdown 原文。
功能
显示效果（只改显示，不改文字）
| 输入 | 显示 |
|---|---|
- 项目 / * 项目 / + 项目 |
• 圆点，列表行略微缩进 |
- [ ] 待办 / - [x] 完成 |
☐ / ☑ 复选框，已完成的项加删除线 |
1. 第一项 |
序号加粗，使用主题品牌色 |
> 引用 |
左侧竖线，文字变灰 |
## 标题 |
加粗、放大，# 变灰 |
**粗体** *斜体* `代码` ~~删除~~ |
中间文字显示对应格式，符号变灰 |
```js … ``` |
等宽字体、底色，关键字、字符串、数字、注释分别上色 |
圆点、复选框和代码块只对单独成行的内容生效，也就是用 Shift+Enter 换出来的行；粘贴进来的多行文字只做行内高亮。
编辑
- Shift+Enter 续写列表：在有内容的列表行上按 Shift+Enter，换行并补上下一个标记。
-*+保持不变，9.续成10.，- [x]续成- [ ]，>保持不变，行首缩进保留。 - 退出列表：在只有标记的空行上按 Shift+Enter，删除该标记。
- 选中文字加格式：选中一段文字后按
Cmd/Ctrl+B加**，Cmd/Ctrl+I加*，Cmd/Ctrl+E加反引号；再按一次去掉。没有选中文字时这些键保持原来的作用，Cmd+B仍然开关侧边栏。 - Enter 行为不变：Enter 发送，Shift+Enter 换行。
插件只会在续写列表和选中加格式时插入文字，其他情况不改动你输入的内容。
安装
需要 dsh CLI 在 PATH 上（npm install -g @deepseek-ai/dsh）。本插件是纯 JavaScript，无需构建。
git clone https://github.com/kyanray-dev/dsh-markdown-input.git
cd dsh-markdown-input
dsh plugin --profile web add ./
然后以该 profile 重启 Harness。DSH Desktop 用户请按 Cmd+Q 完全退出后重新打开。
也可以通过 dsh-market 插件市场安装。
工作原理
- 高亮使用浏览器的 CSS Custom Highlight API，只影响绘制，不向编辑器插入任何节点。
- 圆点和复选框：把原来的
-画成透明，再用` 的::before在同一位置画•/☐/☑`；位置按标记字符的实际大小测量。 - 行的样式通过给 `` 添加 class 实现；编辑器的 MutationObserver 不监听属性变化，因此不会被还原。
- Shift+Enter 时通过编辑器实例把当前行拆成新段落，并在新段落开头插入标记。段落间隔与行内换行在草稿中同样导出为
\n，发送内容不变。 - 插件整体包在 try/catch 中：任何异常只会让插件自身停用，不影响 DSH 启动。
限制
- 标记不会被真正隐藏：
**这类符号会变灰但仍占位置，圆点所在位置仍是原来的-。这是为了保证发送的文字不变。 - 粗体用描边模拟，斜体用颜色区分：浏览器的 Highlight API 不支持改字重和字形。
- 续写依赖编辑器内部字段
__lexicalEditor与_pendingEditorState，DSH 升级后可能变化；取不到时退回为原生换行加插入标记，列表行不再缩进，也不显示圆点。 - 粘贴进来的多行文本位于同一段落内，只做行内高亮。
- 仅支持 Web 界面（包括 DSH Desktop）。在 DSH Desktop 0.1.7-rc.2 上测试。
卸载
在「设置 → 插件」中关闭或移除 dsh-markdown-input。
许可证
Apache-2.0
English
Markdown authoring in the DeepSeek Harness (DSH) composer: lists show bullets and checkboxes, bold, italic, inline code, strikethrough and fenced code render as you type, and Shift+Enter continues lists. The sent text is still the Markdown you typed.
Features
Presentation (display only, text unchanged)
| Input | Display |
|---|---|
- item / * item / + item |
• bullet, slightly indented |
- [ ] todo / - [x] done |
☐ / ☑ checkbox; done items struck through |
1. first |
number bold in the brand color |
> quote |
left bar, muted text |
## Title |
bold and larger, muted # |
**bold** *italic* `code` ~~strike~~ |
content styled, delimiters muted |
```js … ``` |
monospace block with a background; keywords, strings, numbers and comments coloured |
Bullets, checkboxes and code blocks apply to lines that stand alone, i.e. lines made with Shift+Enter; pasted multi-line text gets inline styling only.
Editing
- List continuation on Shift+Enter — on a list line with content, Shift+Enter starts a new line with the next marker:
-*+repeat,9.becomes10.,- [x]becomes- [ ],>repeats. Leading indentation is kept. - Leave a list — Shift+Enter on an empty item removes the marker.
- Format a selection — with text selected,
Cmd/Ctrl+Bwraps it in**,Cmd/Ctrl+Iin*,Cmd/Ctrl+Ein backticks; press again to unwrap. Without a selection the keys keep their usual meaning (Cmd+Bstill toggles the sidebar). - Enter unchanged — Enter sends, Shift+Enter inserts a newline.
The plugin only inserts text when it continues a list or wraps a selection.
Install
Requires the dsh CLI on PATH (npm install -g @deepseek-ai/dsh). Plain JavaScript, no build step.
git clone https://github.com/kyanray-dev/dsh-markdown-input.git
cd dsh-markdown-input
dsh plugin --profile web add ./
Restart the Harness with that profile. On DSH Desktop, quit with Cmd+Q and reopen.
How it works
- Highlights use the CSS Custom Highlight API, which paints ranges without inserting nodes into the editor.
- Bullets and checkboxes: the real
-is painted transparent and the`'s::beforedraws•/☐/☑` over it, positioned from the marker's measured box. - Line styles are classes on each line's ``; the editor's MutationObserver ignores attribute changes, so they are kept.
- On Shift+Enter the plugin splits the current line into a new paragraph through the editor instance and types the marker. Paragraph gaps and line breaks both project to
\nin the draft, so the sent text is the same. - Everything runs inside try/catch: a failure disables the plugin, never Harness startup.
Limitations
- Markers are not removed: delimiters such as
**are muted but still take space, and a bullet sits where the-is. This keeps the sent text identical. - Bold is simulated with a stroke and italic with colour: the Highlight API cannot change font weight or style.
- Continuation reads the editor internals
__lexicalEditorand_pendingEditorState, which may change in future DSH releases. When they are unavailable the plugin falls back to a native line break plus a typed marker, without indentation or bullets. - Pasted multi-line text shares one paragraph, so it gets inline styling only.
- Web UI only (including DSH Desktop). Tested on DSH Desktop 0.1.7-rc.2.
Uninstall
Disable or remove dsh-markdown-input under Settings → Plugins.
License
Apache-2.0
