RPP is a text pre-processor written in Rust. This project is largely inspired by PP, the POSIX shell text preprocessor.
As such, their usage and syntax are very similar.
Typical rpp usage is very simple.
rpp <filename>
Any valid shell command can be placed after two exclamation marks (!!) in any line and RPP will run the command and replace the line with the commands output.
# Sample Markdown
Numbers:
!! for i in $(seq 1 10); do echo "$(($i * 2))"; done
This will expand to
# Sample Markdown
Numbers:
2
4
6
8
10
12
14
16
18
20
RPP also support one other syntax. The !# works similarly to a hashbang in shell scripts and will change the processor to some other program.
!# sh - changes shell to sh
!# bash - changes shell to bash
Sh is the default program. The !# syntax could theoretically run any program
that uses the format <program name> -c <command>.
To compile this, you'll need to have the Rust toolchain installed.
After that it's as simple as cloning the repo and running cargo build.
This started out as a project by students who were just learning Rust. As such, there will likely be bugs and non-idiomatic ways of doing things here.
Feel free to submit a Pull Request if you wish to help.