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Created Terminal and Terminal Font detection (markdown)

Dylan Araps 2016-06-03 18:31:24 +10:00
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**[#252](https://github.com/dylanaraps/neofetch/pull/252)** added support for displaying the terminal emulator in use as well as the font<br \>
the terminal emulator is currently using.
# Terminal Detection
#### Mac OS X
Terminal detection works by checking the value of `$TERM_PROGRAM`.
#### All other OS
Terminal detection works by recursively checking parent processes until the result<br \>
isn't `$SHELL`, `*sh`, `screen` or `tmux`.
This method of detection doesn't work with `tmux` as the parent processes aren't<br \>
the current shell or the terminal emulator.
# Font Detection
Font detection works by parsing the terminal emulator's config file.
#### Funtion Support
| Terminal Emulator | Config Type | Font Detection |
| ----------------- | ----------- | -------------- |
| Gnome-terminal | Profile | No |
| iTerm2 | Profile | No |
| Konsole | Profile | No |
| Mintty | Global | Yes |
| st | None | No |
| Terminal.app | N/A | Yes |
| Terminator | Profile | No |
| Termite | Global | Yes |
| URxvt | N/A | Yes |
| Xfce4-terminal | Global | Yes |
| Xterm | N/A | Yes |
**Profile**: The font info is split based on profiles.<br \>
**N/A**: A command is used (`xrdb` / `osascript`) to get the font.