GST标识号（GSTIN）的正则表达式 [英] Regex for GST Identification Number (GSTIN)

问题描述

印度GST号码的正则表达是什么？您可以从

格式详情

1. 商品及服务税编号的前2位数字代表按人口普查（2011年）编制的国家代码。


2. 接下来的10位数字与纳税人的PAN编号相同。
   
   
   
   
   • 前五个将是字母
   
   
   • 接下来的四个将是数字
   
   
   • 最后一个是支票代码
   
   


3. 第13位数字是你在一个州内注册的数量，即在9之后，A到Z是被视为10至35。


4. 默认情况下，第14位数字为Z.


5. 最后一位是支票代码。

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以下是使用js中的校验和验证/验证gstin编号的代码

  function checksum（g）{let a = 65，b = 55，C = 36; return Array ['from']（g）.reduce（（i，j，k，g）=> {p =（p =（j.charCodeAt（0）< a？parseInt（j）：j.charCodeAt （0）-b）*（k％2 + 1））> c？1+（pc）：p;返回k <14？i + p：j ==（（c =（c-（i％c） ）））< 10？c：String.fromCharCode（c + b））;}，0）; }的console.log（校验和（ '27AAPFU0939F1ZV'））的console.log（校验和（ '27AASCS2460H1Z0'））的console.log（校验和（ '29AAGCB7383J1Z4'）） 

各种GST正则表达式和校验和编程语言

What is the regex for the GST number in India. You can read more about the GST numbers from https://cleartax.in/s/know-your-gstin On a summary level the number is represented as

• List itemThe first two digits of this number will represent the state code as per Indian Census 2011
• The next ten digits will be the PAN number of the taxpayer
• The thirteenth digit will be assigned based on the number of registration within a state
• The fourteenth digit will be Z by default
• The last digit will be for check code

解决方案

Here is the regex and checksum validation for GSTIN

\d{2}[A-Z]{5}\d{4}[A-Z]{1}[A-Z\d]{1}[Z]{1}[A-Z\d]{1}

Format details

1. First 2 digits of the GST Number will represent State Code as per the Census (2011).
2. Next 10 digits will be same as in the PAN number of the taxpayer.
   • First five will be alphabets
   • Next four will be numbers
   • Last will be check code
3. The 13th digit will be the number of registration you take within a state i.e. after 9, A to Z is considered as 10 to 35 .
4. 14th digit will be Z by default.
5. Last would be the check code.

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Here is the code for verifying/validating the gstin number using the checksum in js

function checksum(g){
    let a=65,b=55,c=36;
    return Array['from'](g).reduce((i,j,k,g)=>{ 
    p=(p=(j.charCodeAt(0)<a?parseInt(j):j.charCodeAt(0)-b)*(k%2+1))>c?1+(p-c):p;
    return k<14?i+p:j==((c=(c-(i%c)))<10?c:String.fromCharCode(c+b));
    },0);     
}

console.log(checksum('27AAPFU0939F1ZV'))
console.log(checksum('27AASCS2460H1Z0'))
console.log(checksum('29AAGCB7383J1Z4'))

GST regex and checksum in various programming languages

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