nv-buf-jstr

nv-buf-jstr
===============
- nv-buf-jstr
- a jstr step-decoder, input str[i] each time. return-code-point-if-success , return-undefined-if-in-waiting-more-bytes
- support two-modes: auto-recover AND throw-error
- can observe state : [ 'INIT','H','L','ERROR' ]
- its for local decode from string , normally USELESS

install
=======
- npm install nv-buf-jstr

usage
=====

const {decd} = require("nv-buf-jstr");
const {Mach} = decd.mach;

example
-------

var mach = new Mach()

var s = "我𝑒你"

> s[0]
'我'
> s[1]
'�'
> s[2]
'�'
> s[3]
'你'
>

var s = "我𝑒你"

> s[0]
'我'
> s[1]
'�'
> s[2]
'�'
> s[3]
'你'
>

> s.charCodeAt(0)
25105
> s.charCodeAt(1)
55349
> s.charCodeAt(2)
56402
> s.charCodeAt(3)
20320
>

var mach = new Mach()
> mach.input(s[0])
25105

> mach.input(s[1])

> mach
Mach(5) [{"cursor":4,"state":"H","data":[55349],"err_b16":0}] [
4,
18,
0,
55349,
0
]
>

> mach.input(s[2])
119890 //'𝑒'.codePointAt(0)
>

> mach.input(s[3])
20320
>

METHODS
=======

decode
------

mach.cursor_ mach.dict
mach.disable_auto_recover mach.enable_auto_recover mach.err_b16_
mach.input mach.is_auto_recover_enabled mach.is_err
mach.is_high mach.is_init mach.lefted_
mach.reset mach.state_code_ mach.state_name_

API
====

decode
------

{
is_high_surrogate: [Function: is_high_surrogate],
is_low_surrogate: [Function: is_low_surrogate],
is_not_surrogate: [Function: is_not_surrogate],
surrogate_to_code: [Function: surrogate_to_code],
b16arr_to_code: [Function: b16arr_to_code]
}

LICENSE
=======
- ISC