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https://github.com/zigalenarcic/mangl
An enhanced man page viewer for linux and BSD systems based on OpenGL and mandoc libraries
https://github.com/zigalenarcic/mangl
bsd desktop linux manpage opengl
Last synced: about 1 month ago
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An enhanced man page viewer for linux and BSD systems based on OpenGL and mandoc libraries
- Host: GitHub
- URL: https://github.com/zigalenarcic/mangl
- Owner: zigalenarcic
- License: other
- Created: 2021-10-25T10:19:57.000Z (almost 3 years ago)
- Default Branch: main
- Last Pushed: 2024-07-10T18:34:43.000Z (2 months ago)
- Last Synced: 2024-07-10T22:24:54.254Z (2 months ago)
- Topics: bsd, desktop, linux, manpage, opengl
- Language: C
- Homepage:
- Size: 3.68 MB
- Stars: 36
- Watchers: 1
- Forks: 7
- Open Issues: 6
-
Metadata Files:
- Readme: README.md
- Changelog: ChangeLog.md
- License: LICENSE
Awesome Lists containing this project
- awesome-starred - zigalenarcic/mangl - An enhanced man page viewer for linux and BSD systems based on OpenGL and mandoc libraries (opengl)
README
# mangl
Mangl is a graphical man page viewer based on the mandoc library (https://mandoc.bsd.lv/).
It uses OpenGL with GLFW to display man pages with clickable hyperlinks and smooth scrolling.
Features:
* searching of man pages
* hyperlinks to other man pages
* search withing a man page
* browsing history
* colored text
* truetype support
* draggable scrollbar
* keyboard and mouse interaction
## Building
Install prerequisites if necessary (pkg-config, zlib, bzip2, OpenGL, GLFW and FreeType headers and
libraries). On Debian systems run:
```
sudo apt install pkg-config libz-dev libgl-dev libglfw3-dev libfreetype6-dev libbz2-dev
```
Then, run the usual
```
./configure
make
```
If it fails, please check the Makefile for proper inclusion of OpenGL libraries.
Run
```
sudo make install
```
to copy the executable to `/usr/local/bin/` or copy and use the `mangl` binary as you like.
## Keyboard & mouse commands
* scrolling one step: `j`, `k`, `up-arrow`, `down-arrow`
* scrolling one whole page: `space`, `shift-space`, `page-up`, `page-down`
* scrolling to the beginning or the end of the man page: `gg`, `G`, `Home`, `End`
* to go to the previous man page: `b`, `escape`, `right-mouse-click`
* to go to the next man page: `left-mouse-click` on the link, `f` to go to the page opened before going back
* to search within a man page: `/` to initiate a search, `escape` to cancel a search, `enter` to commit the search, `n` and `N` to move between search results, search emulates vim's `smartcase` feature (use case sensitive search if the term includes uppercase letters)
* to go to search screen: `Ctrl-f`
* to quit: `q`, `Ctrl-c`, `Ctrl-d`
* to toggle line length to fit the window: `=`
## ~/.manglrc
Configuration can be specified with `~/.manglrc` file. Here is an example
(reproduces default settings):
```
font: Anonymous Pro
font_size: 10
gui_scale: 1
line_spacing: 1
line_length: 78
initial_window_rows: 40
color_background: #151515
color_foreground: #fdfde8
color_bold: #a4d4f1
color_italic: #ffce79
color_dim: #7b7b7b
color_scrollbar_background: #262626
color_scrollbar_thumb: #454545
color_scrollbar_thumb_hover: #545454
color_link: #4515ff
color_gui_1: #ebb470
color_gui_2: #8fbfdc
color_error: #ff1515
color_searches: #1515ff
color_search_selected: #15ff15
```
`font` parameter uses the `fc-match` external program to find the font file. The font
file can also be specified directly.
## Command line arguments
```
mangl - open the viewer in search mode
mangl [man page name] - open the viewer in man page mode with man page opened
mangl [section name] [man page name] - open the man page from the specified section, e.g. mangl 3 printf
```