# lazer-rs
Console printer with a fluent API, written in Rust.
# lazer
Lazer is a utility for printing to the console using a fluent API. Ported to Rust from the original TypeScript package.
## Description
Lazer helps you build, format and print complex messages to the console using an expressive fluent API.
## Usage
### Simple Example
```typescript
import { lazer } from "https://deno.land/x/lazer/mod.ts"
lazer()
.print("Hello,")
.print_space()
.print_green("Green World")
.print_ln("!")
```
```bash
$ deno run example.ts
Hello, Green World!
```
### Complex Example
```typescript
import { lazer } from "https://deno.land/x/lazer/mod.ts"
const remoteAddr = "127.0.0.1";
const method = "GET";
const path = "/a/really/really/really/long/path/here";
const status = 200;
const time_ms = 20;
const size_bytes_string = "1.10kB";
lazer()
.print('[').print_utc_time().print(']')
.print_space().print("-").print_space()
.print_pad_right(remoteAddr, 15, '_')
.print_space(2)
.print_pad_right(method, 4, '_')
.print_space(2)
.print_pad_right(path, 20, "_")
.print_space(2)
.if(status >= 200 && status < 300)
.print_green(status)
.elseif(status >= 300 && status < 400)
.print_yellow(status)
.elseif(status >= 400)
.print_red(status)
.end()
.print_space(2)
.print_pad_right(`${time_ms}ms`, 6, "_")
.print_space(2)
.print_ln(size_bytes_string);
```
```bash
$ deno run example.ts
[Fri, 01 Jan 2021 00:00:00 GMT] - 127.0.0.1______ GET_ /a/really/really/+42 200 20ms__ 1.10kB
```
### Buffering Example
```typescript
import { lazer } from "https://deno.land/x/lazer/mod.ts"
const getLinePrefix = () =>
{
return lazer().buffer()
.print_yellow('[').print_yellow("Line Prefix").print_yellow(']')
.print_space().print("-").print_space()
.print_yellow('[').set_color_yellow().print_utc_time().print_yellow(']')
.print_space().print("-").print_space()
.return();
}
lazer()
.print(getLinePrefix())
.print_yellow_ln("This is a prefixed line of text output");
lazer()
.print(getLinePrefix())
.print_yellow_ln("This is another prefixed line of text output");
```
```bash
$ deno run example.ts
[Line Prefix] - [Mon, 10 May 2021 16:31:29 GMT] - This is a prefixed line of text output
[Line Prefix] - [Mon, 10 May 2021 16:31:29 GMT] - This is another prefixed line of text output
```
### Buffer Aliasing Example
```typescript
import { lazer } from "https://deno.land/x/lazer/mod.ts"
lazer().buffer()
.set_color_red().print_ln("Some red output to buffer")
.store('i am an alias');
lazer().buffer()
.load('i am an alias')
.print_b();
```
```bash
$ deno run example.ts
Some red output to buffer
```
## Supported Platforms
### Deno
```typescript
import { lazer } from "https://deno.land/x/lazer/mod.ts"
```
### Node.js
```bash
npm i --save lazer-js
```
```javascript
const { lazer } = require('lazer-js');
```