NotAlexNoyleandClaude Opus 4.8
181cbf79b2
The WebKit HTML preview previously rendered fenced code blocks monochrome. Wire the existing tokenizer into the HTML renderer so code blocks are highlighted like GitHub, and extend language coverage. - markdown.c: accumulate each code block's text, tokenize it on block leave, and emit <span class="pl-*"> per token with HTML-escaped gaps and token text; unknown languages fall back to plain escaped text. - Add GitHub Primer syntax colors (light/dark) for keywords, constants, strings, and comments. - code_highlight.c: tokenize comments (//, /* */, #), which were previously skipped and left uncolored. - Add languages: javascript, kotlin, and bash (aliases js, kt, sh, shell). Bash uses a dedicated scanner whose '#' comments are word-position aware so $#, x=$#, and a.com#frag are not comments. - Create the code_comment tag so the source editor colors comments too. - README: document the highlighted languages. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
👁 SeeMD
A lightweight GTK 3 markdown viewer and editor for desktop Linux. It is ideal as your default app for opening .md files. Uses the excellent library md4c for markdown parsing and WebKitGTK for GitHub-style preview rendering. This project is a fork of ViewMD by NotAlexNoyle.
Features
- GitHub-style preview - Rendered Markdown and inline HTML are displayed through WebKitGTK with GitHub-like markdown styling
- Read-only preview - Rendered Markdown stays non-editable until source mode is enabled
- Source editing mode - Toggle between rendered preview and editable Markdown
- Minimal UI - Clean toolbar with open, reload, edit, save, and settings buttons
- Lightweight - Pure C with GTK and WebKitGTK, fast startup
- Hyperlink support - Left click opens links and internal anchors
- Document search -
Ctrl+Fwith next/previous match navigation - Local image support - Local images keep natural size unless they need to fit the document window
Supported Markdown
| Syntax | Description |
|---|---|
# Header 1 |
Large bold header |
## Header 2 |
Medium bold header |
### Header 3 |
Small bold header |
**bold** |
Bold text |
*italic* |
Italic text |
`code` |
Inline code |
|
Code block |
- item |
List item |
> quote |
Block quote |
[text](url) |
Link |
~~strike~~ |
Strikethrough |
| table | row | |
Markdown tables |
<strong>HTML</strong> |
GitHub-style inline and block HTML rendered in preview mode |
--- |
Horizontal rule |
Fenced code blocks are syntax-highlighted GitHub-style in the preview for the languages c, java, javascript, kotlin, python, and bash, covering keywords, strings, numbers, and comments.
Usage
Run seemd to start the application.
- Open button: Open a markdown document
- Reload button: Reload the currently open document from disk
- Edit button: Toggle editable Markdown source mode (
Ctrl+E) - Save button: Save the current Markdown source (
Ctrl+S) - Settings button: Adjust theme, fonts, and markdown accent colors
Find in Document
- Press
Ctrl+Fto open search. - Type to highlight matches as you search.
- Press
Enterfor next match andShift+Enterfor previous match. - Press
Escto close search.
Set as Default .md Viewer
After installing, associate markdown MIME types with seemd.desktop:
xdg-mime default seemd.desktop text/markdown
xdg-mime default seemd.desktop text/x-markdown
Verify the current default:
xdg-mime query default text/markdown
Test by opening a markdown file through your desktop association:
xdg-open README.md
Building From Source
make
sudo make install
This installs:
- Binary to
/usr/local/bin/seemd - Desktop file to
/usr/local/share/applications/seemd.desktop
Uninstallation
sudo make uninstall
Dependencies
Arch Linux
sudo pacman -S gtk3 webkit2gtk-4.1
Ubuntu/Debian
sudo apt install libgtk-3-dev libwebkit2gtk-4.1-dev
Fedora
sudo dnf install gtk3-devel webkit2gtk4.1-devel
License
Released under the MIT License.