vlog-rs

Macros to do stdout / stderr logs based on verbosity level, which take in the same arguments as println! macro.

Useful for CLI applications. The default verbosity level is 0, and the supported max verbosity level is 3, which is equivalent to -vvv flags as seen in most Linux CLI applications.

Example

```rust

[macro_use]

extern crate vlog;

use vlog::{getverbositylevel, setverbositylevel};

fn main() { // default verbosity level is 0 asserteq!(0, getverbosity_level()); v0!("v0 prints"); v1!("v1 won't print"); v2!("v2 won't print"); v3!("v3 won't print");

// set custom verbosity level
set_verbosity_level(1);
assert_eq!(1, get_verbosity_level());
v0!("{} prints", "v0");
v1!("{} prints", "v1");
v2!("{} won't print", "v2");
v3!("{} won't print", "v3");

// set custom max verbosity level
set_verbosity_level(3);
assert_eq!(3, get_verbosity_level());
v0!("{} prints", "v0");
v1!("{} prints", "v1");
v2!("{} prints", "v2");
v3!("{} prints", "v3");

} ```