69 lines
4.1 KiB
Markdown
69 lines
4.1 KiB
Markdown
# gnums
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gnums is the gui version of my program <a href="https://tildegit.org/sloum/nums" target="_blank">nums</a> (ie. gui/graphical nums). It is a <a href="https://en.wikipedia.org/wiki/Reverse_Polish_notation" target="_blank">reverse polish notation</a> calculator.
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## Usage
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On initial load some sensible defaults will be set up. Other options are avialable in the settings menu. You will see a stack view on the left, the calculator buttons on the right, and the main input/output at the top. The main input/output will show what you are typing as you type it and will show the current TOS/total after performing an operation (but before more numerical entry), similar to a regular calculator. The stack view will show the full input stack and allow for more complex operations.
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Most of the keys can be figured out if you don't know what they are already. I will mention that the enter key will add the currently typed in number to the top of the stack. If you have a number typed in, but have not hit enter, and you use a non-numeric/non-enter key (+, swap, sqrt, etc) the number will automatically be added to the top of the stack before the function is run.
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### Hot Keys
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| Key(s) | Effect |
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|-------------|-------------------------------------------------------|
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| Number Key (`0`-`9`) | Enter the given number |
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| `.` | Enter a decimal point to the current input value |
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| `Backspace` | Delete a character from the current input value |
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| `Enter` | Place the current input value on the top of the stack |
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| `Tab` | Toggle the stack view open/closed |
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| `Ctrl-q` | Exit gnums |
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| `+` | Add |
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| `-` | Subtract |
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| `*` | Multiply |
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| `/` | Divide |
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| `!` | Invert the top stack value's sign (+/-) |
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| `^` | Exponent |
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| `f` | Floor |
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| `c` | Ceiling |
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| `r` | Round |
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| `q` | Square root |
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| `o` | Over |
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| `s` | Swap |
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| `d` | Drop |
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| `u` | Dup |
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## Dependencies
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- Go >= 1.16
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- OSX
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- xcode-select (`xcode-select --install`)
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- Windows
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- <a href="https://github.com/brechtsanders/winlibs_mingw/releases/tag/10.2.0-11.0.0-8.0.0-r8" target="_blank">mingw</a>
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- Debian/derivatives (package names may vary for other distros)
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- `apt install libx11-dev libxcursor-dev libxrandr-dev libxinerama-dev libxi-dev libglx-dev libgl1-mesa-dev libxxf86vm-dev`
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## Building
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Minor build variations can be found for each system. Using upx (`apt install upx` or `brew install upx`) will reduce binary size by a good bit for any of these systems. After running the build command, and optionally running upx, move the resulting binary onto your path and you are good to go.
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### OSX / Linux
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You should be able to just run `sudo make install`. If you just want to build locally you can run: `make && make compress`
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Alternatively, you can just run a few things yourself and avoid make altogether:
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`go build -ldflags "-s -w" -o gnums && upx gnums`
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You would then need to move the executable to where you want it, as well as install the desktop entry/icon (linux only).
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### Windows
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Windows functionality and build steps are unconfirmed. As is the Makefile for windows usage. The following _should_ work. The makefile instructions provided for OSX/Linux _might_ work.
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`go build -ldflags "-s -w -H=windowsgui -extldflags=-static" -o gnums.exe`
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